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/*!
* OverlayScrollbars
* https://github.com/KingSora/OverlayScrollbars
*
* Version: 1.11.0
*
* Copyright KingSora | Rene Haas.
* https://github.com/KingSora
*
* Released under the MIT license.
* Date: 29.02.2020
*/
(function (global, factory) {
if (typeof define === 'function' && define.amd)
define(function () { return factory(global, global.document, undefined); });
else if (typeof module === 'object' && typeof module.exports === 'object')
module.exports = factory(global, global.document, undefined);
else
factory(global, global.document, undefined);
}(typeof window !== 'undefined' ? window : this,
function (window, document, undefined) {
'use strict';
var PLUGINNAME = 'OverlayScrollbars';
var TYPES = {
o: 'object',
f: 'function',
a: 'array',
s: 'string',
b: 'boolean',
n: 'number',
u: 'undefined',
z: 'null'
//d : 'date',
//e : 'error',
//r : 'regexp',
//y : 'symbol'
};
var LEXICON = {
c: 'class',
s: 'style',
i: 'id',
l: 'length',
p: 'prototype',
ti: 'tabindex',
oH: 'offsetHeight',
cH: 'clientHeight',
sH: 'scrollHeight',
oW: 'offsetWidth',
cW: 'clientWidth',
sW: 'scrollWidth',
hOP: 'hasOwnProperty',
bCR: 'getBoundingClientRect'
};
var VENDORS = (function () {
//https://developer.mozilla.org/en-US/docs/Glossary/Vendor_Prefix
var jsCache = {};
var cssCache = {};
var cssPrefixes = ['-webkit-', '-moz-', '-o-', '-ms-'];
var jsPrefixes = ['WebKit', 'Moz', 'O', 'MS'];
function firstLetterToUpper(str) {
return str.charAt(0).toUpperCase() + str.slice(1);
}
return {
_cssPrefixes: cssPrefixes,
_jsPrefixes: jsPrefixes,
_cssProperty: function (name) {
var result = cssCache[name];
if (cssCache[LEXICON.hOP](name))
return result;
var uppercasedName = firstLetterToUpper(name);
var elmStyle = document.createElement('div')[LEXICON.s];
var resultPossibilities;
var i = 0;
var v;
var currVendorWithoutDashes;
for (; i < cssPrefixes.length; i++) {
currVendorWithoutDashes = cssPrefixes[i].replace(/-/g, '');
resultPossibilities = [
name, //transition
cssPrefixes[i] + name, //-webkit-transition
currVendorWithoutDashes + uppercasedName, //webkitTransition
firstLetterToUpper(currVendorWithoutDashes) + uppercasedName //WebkitTransition
];
for (v = 0; v < resultPossibilities[LEXICON.l]; v++) {
if (elmStyle[resultPossibilities[v]] !== undefined) {
result = resultPossibilities[v];
break;
}
}
}
cssCache[name] = result;
return result;
},
_jsAPI: function (name, isInterface, fallback) {
var i = 0;
var result = jsCache[name];
if (!jsCache[LEXICON.hOP](name)) {
result = window[name];
for (; i < jsPrefixes[LEXICON.l]; i++)
result = result || window[(isInterface ? jsPrefixes[i] : jsPrefixes[i].toLowerCase()) + firstLetterToUpper(name)];
jsCache[name] = result;
}
return result || fallback;
}
}
})();
var COMPATIBILITY = (function () {
function windowSize(x) {
return x ? window.innerWidth || document.documentElement[LEXICON.cW] || document.body[LEXICON.cW] : window.innerHeight || document.documentElement[LEXICON.cH] || document.body[LEXICON.cH];
}
function bind(func, thisObj) {
if (typeof func != TYPES.f) {
throw "Can't bind function!";
// closest thing possible to the ECMAScript 5
// internal IsCallable function
//throw new TypeError('Function.prototype.bind - what is trying to be bound is not callable');
}
var proto = LEXICON.p;
var aArgs = Array[proto].slice.call(arguments, 2);
var fNOP = function () { };
var fBound = function () { return func.apply(this instanceof fNOP ? this : thisObj, aArgs.concat(Array[proto].slice.call(arguments))); };
if (func[proto])
fNOP[proto] = func[proto]; // Function.prototype doesn't have a prototype property
fBound[proto] = new fNOP();
return fBound;
}
return {
/**
* Gets the current window width.
* @returns {Number|number} The current window width in pixel.
*/
wW: bind(windowSize, 0, true),
/**
* Gets the current window height.
* @returns {Number|number} The current window height in pixel.
*/
wH: bind(windowSize, 0),
/**
* Gets the MutationObserver Object or undefined if not supported.
* @returns {MutationObserver|*|undefined} The MutationsObserver Object or undefined.
*/
mO: bind(VENDORS._jsAPI, 0, 'MutationObserver', true),
/**
* Gets the ResizeObserver Object or undefined if not supported.
* @returns {MutationObserver|*|undefined} The ResizeObserver Object or undefined.
*/
rO: bind(VENDORS._jsAPI, 0, 'ResizeObserver', true),
/**
* Gets the RequestAnimationFrame method or it's corresponding polyfill.
* @returns {*|Function} The RequestAnimationFrame method or it's corresponding polyfill.
*/
rAF: bind(VENDORS._jsAPI, 0, 'requestAnimationFrame', false, function (func) { return window.setTimeout(func, 1000 / 60); }),
/**
* Gets the CancelAnimationFrame method or it's corresponding polyfill.
* @returns {*|Function} The CancelAnimationFrame method or it's corresponding polyfill.
*/
cAF: bind(VENDORS._jsAPI, 0, 'cancelAnimationFrame', false, function (id) { return window.clearTimeout(id); }),
/**
* Gets the current time.
* @returns {number} The current time.
*/
now: function () {
return Date.now && Date.now() || new Date().getTime();
},
/**
* Stops the propagation of the given event.
* @param event The event of which the propagation shall be stoped.
*/
stpP: function (event) {
if (event.stopPropagation)
event.stopPropagation();
else
event.cancelBubble = true;
},
/**
* Prevents the default action of the given event.
* @param event The event of which the default action shall be prevented.
*/
prvD: function (event) {
if (event.preventDefault && event.cancelable)
event.preventDefault();
else
event.returnValue = false;
},
/**
* Gets the pageX and pageY values of the given mouse event.
* @param event The mouse event of which the pageX and pageX shall be got.
* @returns {{x: number, y: number}} x = pageX value, y = pageY value.
*/
page: function (event) {
event = event.originalEvent || event;
var strPage = 'page';
var strClient = 'client';
var strX = 'X';
var strY = 'Y';
var target = event.target || event.srcElement || document;
var eventDoc = target.ownerDocument || document;
var doc = eventDoc.documentElement;
var body = eventDoc.body;
//if touch event return return pageX/Y of it
if (event.touches !== undefined) {
var touch = event.touches[0];
return {
x: touch[strPage + strX],
y: touch[strPage + strY]
}
}
// Calculate pageX/Y if not native supported
if (!event[strPage + strX] && event[strClient + strX] && event[strClient + strX] != null) {
return {
x: event[strClient + strX] +
(doc && doc.scrollLeft || body && body.scrollLeft || 0) -
(doc && doc.clientLeft || body && body.clientLeft || 0),
y: event[strClient + strY] +
(doc && doc.scrollTop || body && body.scrollTop || 0) -
(doc && doc.clientTop || body && body.clientTop || 0)
}
}
return {
x: event[strPage + strX],
y: event[strPage + strY]
};
},
/**
* Gets the clicked mouse button of the given mouse event.
* @param event The mouse event of which the clicked button shal be got.
* @returns {number} The number of the clicked mouse button. (0 : none | 1 : leftButton | 2 : middleButton | 3 : rightButton)
*/
mBtn: function (event) {
var button = event.button;
if (!event.which && button !== undefined)
return (button & 1 ? 1 : (button & 2 ? 3 : (button & 4 ? 2 : 0)));
else
return event.which;
},
/**
* Checks whether a item is in the given array and returns its index.
* @param item The item of which the position in the array shall be determined.
* @param arr The array.
* @returns {number} The zero based index of the item or -1 if the item isn't in the array.
*/
inA: function (item, arr) {
for (var i = 0; i < arr[LEXICON.l]; i++)
//Sometiems in IE a "SCRIPT70" Permission denied error occurs if HTML elements in a iFrame are compared
try {
if (arr[i] === item)
return i;
}
catch (e) { }
return -1;
},
/**
* Returns true if the given value is a array.
* @param arr The potential array.
* @returns {boolean} True if the given value is a array, false otherwise.
*/
isA: function (arr) {
var def = Array.isArray;
return def ? def(arr) : this.type(arr) == TYPES.a;
},
/**
* Determine the internal JavaScript [[Class]] of the given object.
* @param obj The object of which the type shall be determined.
* @returns {string} The type of the given object.
*/
type: function (obj) {
if (obj === undefined)
return obj + '';
if (obj === null)
return obj + '';
return Object[LEXICON.p].toString.call(obj).replace(/^\[object (.+)\]$/, '$1').toLowerCase();
},
bind: bind
/**
* Gets the vendor-prefixed CSS property by the given name.
* For example the given name is "transform" and you're using a old Firefox browser then the returned value would be "-moz-transform".
* If the browser doesn't need a vendor-prefix, then the returned string is the given name.
* If the browser doesn't support the given property name at all (not even with a vendor-prefix) the returned value is null.
* @param propName The unprefixed CSS property name.
* @returns {string|null} The vendor-prefixed CSS property or null if the browser doesn't support the given CSS property.
cssProp: function(propName) {
return VENDORS._cssProperty(propName);
}
*/
}
})();
var MATH = Math;
var JQUERY = window.jQuery;
var EASING = (function () {
var _easingsMath = {
p: MATH.PI,
c: MATH.cos,
s: MATH.sin,
w: MATH.pow,
t: MATH.sqrt,
n: MATH.asin,
a: MATH.abs,
o: 1.70158
};
/*
x : current percent (0 - 1),
t : current time (duration * percent),
b : start value (from),
c : end value (to),
d : duration
easingName : function(x, t, b, c, d) { return easedValue; }
*/
return {
swing: function (x, t, b, c, d) {
return 0.5 - _easingsMath.c(x * _easingsMath.p) / 2;
},
linear: function (x, t, b, c, d) {
return x;
},
easeInQuad: function (x, t, b, c, d) {
return c * (t /= d) * t + b;
},
easeOutQuad: function (x, t, b, c, d) {
return -c * (t /= d) * (t - 2) + b;
},
easeInOutQuad: function (x, t, b, c, d) {
return ((t /= d / 2) < 1) ? c / 2 * t * t + b : -c / 2 * ((--t) * (t - 2) - 1) + b;
},
easeInCubic: function (x, t, b, c, d) {
return c * (t /= d) * t * t + b;
},
easeOutCubic: function (x, t, b, c, d) {
return c * ((t = t / d - 1) * t * t + 1) + b;
},
easeInOutCubic: function (x, t, b, c, d) {
return ((t /= d / 2) < 1) ? c / 2 * t * t * t + b : c / 2 * ((t -= 2) * t * t + 2) + b;
},
easeInQuart: function (x, t, b, c, d) {
return c * (t /= d) * t * t * t + b;
},
easeOutQuart: function (x, t, b, c, d) {
return -c * ((t = t / d - 1) * t * t * t - 1) + b;
},
easeInOutQuart: function (x, t, b, c, d) {
return ((t /= d / 2) < 1) ? c / 2 * t * t * t * t + b : -c / 2 * ((t -= 2) * t * t * t - 2) + b;
},
easeInQuint: function (x, t, b, c, d) {
return c * (t /= d) * t * t * t * t + b;
},
easeOutQuint: function (x, t, b, c, d) {
return c * ((t = t / d - 1) * t * t * t * t + 1) + b;
},
easeInOutQuint: function (x, t, b, c, d) {
return ((t /= d / 2) < 1) ? c / 2 * t * t * t * t * t + b : c / 2 * ((t -= 2) * t * t * t * t + 2) + b;
},
easeInSine: function (x, t, b, c, d) {
return -c * _easingsMath.c(t / d * (_easingsMath.p / 2)) + c + b;
},
easeOutSine: function (x, t, b, c, d) {
return c * _easingsMath.s(t / d * (_easingsMath.p / 2)) + b;
},
easeInOutSine: function (x, t, b, c, d) {
return -c / 2 * (_easingsMath.c(_easingsMath.p * t / d) - 1) + b;
},
easeInExpo: function (x, t, b, c, d) {
return (t == 0) ? b : c * _easingsMath.w(2, 10 * (t / d - 1)) + b;
},
easeOutExpo: function (x, t, b, c, d) {
return (t == d) ? b + c : c * (-_easingsMath.w(2, -10 * t / d) + 1) + b;
},
easeInOutExpo: function (x, t, b, c, d) {
if (t == 0) return b;
if (t == d) return b + c;
if ((t /= d / 2) < 1) return c / 2 * _easingsMath.w(2, 10 * (t - 1)) + b;
return c / 2 * (-_easingsMath.w(2, -10 * --t) + 2) + b;
},
easeInCirc: function (x, t, b, c, d) {
return -c * (_easingsMath.t(1 - (t /= d) * t) - 1) + b;
},
easeOutCirc: function (x, t, b, c, d) {
return c * _easingsMath.t(1 - (t = t / d - 1) * t) + b;
},
easeInOutCirc: function (x, t, b, c, d) {
return ((t /= d / 2) < 1) ? -c / 2 * (_easingsMath.t(1 - t * t) - 1) + b : c / 2 * (_easingsMath.t(1 - (t -= 2) * t) + 1) + b;
},
easeInElastic: function (x, t, b, c, d) {
var s = _easingsMath.o; var p = 0; var a = c;
if (t == 0) return b; if ((t /= d) == 1) return b + c; if (!p) p = d * .3;
if (a < _easingsMath.a(c)) { a = c; s = p / 4; }
else s = p / (2 * _easingsMath.p) * _easingsMath.n(c / a);
return -(a * _easingsMath.w(2, 10 * (t -= 1)) * _easingsMath.s((t * d - s) * (2 * _easingsMath.p) / p)) + b;
},
easeOutElastic: function (x, t, b, c, d) {
var s = _easingsMath.o; var p = 0; var a = c;
if (t == 0) return b;
if ((t /= d) == 1) return b + c;
if (!p) p = d * .3;
if (a < _easingsMath.a(c)) { a = c; s = p / 4; }
else s = p / (2 * _easingsMath.p) * _easingsMath.n(c / a);
return a * _easingsMath.w(2, -10 * t) * _easingsMath.s((t * d - s) * (2 * _easingsMath.p) / p) + c + b;
},
easeInOutElastic: function (x, t, b, c, d) {
var s = _easingsMath.o; var p = 0; var a = c;
if (t == 0) return b;
if ((t /= d / 2) == 2) return b + c;
if (!p) p = d * (.3 * 1.5);
if (a < _easingsMath.a(c)) { a = c; s = p / 4; }
else s = p / (2 * _easingsMath.p) * _easingsMath.n(c / a);
if (t < 1) return -.5 * (a * _easingsMath.w(2, 10 * (t -= 1)) * _easingsMath.s((t * d - s) * (2 * _easingsMath.p) / p)) + b;
return a * _easingsMath.w(2, -10 * (t -= 1)) * _easingsMath.s((t * d - s) * (2 * _easingsMath.p) / p) * .5 + c + b;
},
easeInBack: function (x, t, b, c, d, s) {
s = s || _easingsMath.o;
return c * (t /= d) * t * ((s + 1) * t - s) + b;
},
easeOutBack: function (x, t, b, c, d, s) {
s = s || _easingsMath.o;
return c * ((t = t / d - 1) * t * ((s + 1) * t + s) + 1) + b;
},
easeInOutBack: function (x, t, b, c, d, s) {
s = s || _easingsMath.o;
return ((t /= d / 2) < 1) ? c / 2 * (t * t * (((s *= (1.525)) + 1) * t - s)) + b : c / 2 * ((t -= 2) * t * (((s *= (1.525)) + 1) * t + s) + 2) + b;
},
easeInBounce: function (x, t, b, c, d) {
return c - this.easeOutBounce(x, d - t, 0, c, d) + b;
},
easeOutBounce: function (x, t, b, c, d) {
var o = 7.5625;
if ((t /= d) < (1 / 2.75)) {
return c * (o * t * t) + b;
} else if (t < (2 / 2.75)) {
return c * (o * (t -= (1.5 / 2.75)) * t + .75) + b;
} else if (t < (2.5 / 2.75)) {
return c * (o * (t -= (2.25 / 2.75)) * t + .9375) + b;
} else {
return c * (o * (t -= (2.625 / 2.75)) * t + .984375) + b;
}
},
easeInOutBounce: function (x, t, b, c, d) {
return (t < d / 2) ? this.easeInBounce(x, t * 2, 0, c, d) * .5 + b : this.easeOutBounce(x, t * 2 - d, 0, c, d) * .5 + c * .5 + b;
}
};
/*
*
* TERMS OF USE - EASING EQUATIONS
*
* Open source under the BSD License.
*
* Copyright © 2001 Robert Penner
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this list of
* conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright notice, this list
* of conditions and the following disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* Neither the name of the author nor the names of contributors may be used to endorse
* or promote products derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
})();
var FRAMEWORK = (function () {
var _rnothtmlwhite = (/[^\x20\t\r\n\f]+/g);
var _strSpace = ' ';
var _strEmpty = '';
var _strScrollLeft = 'scrollLeft';
var _strScrollTop = 'scrollTop';
var _animations = [];
var _type = COMPATIBILITY.type;
var _cssNumber = {
animationIterationCount: true,
columnCount: true,
fillOpacity: true,
flexGrow: true,
flexShrink: true,
fontWeight: true,
lineHeight: true,
opacity: true,
order: true,
orphans: true,
widows: true,
zIndex: true,
zoom: true
};
function extend() {
var src, copyIsArray, copy, name, options, clone, target = arguments[0] || {},
i = 1,
length = arguments[LEXICON.l],
deep = false;
// Handle a deep copy situation
if (_type(target) == TYPES.b) {
deep = target;
target = arguments[1] || {};
// skip the boolean and the target
i = 2;
}
// Handle case when target is a string or something (possible in deep copy)
if (_type(target) != TYPES.o && !_type(target) == TYPES.f) {
target = {};
}
// extend jQuery itself if only one argument is passed
if (length === i) {
target = FakejQuery;
--i;
}
for (; i < length; i++) {
// Only deal with non-null/undefined values
if ((options = arguments[i]) != null) {
// Extend the base object
for (name in options) {
src = target[name];
copy = options[name];
// Prevent never-ending loop
if (target === copy) {
continue;
}
// Recurse if we're merging plain objects or arrays
if (deep && copy && (isPlainObject(copy) || (copyIsArray = COMPATIBILITY.isA(copy)))) {
if (copyIsArray) {
copyIsArray = false;
clone = src && COMPATIBILITY.isA(src) ? src : [];
} else {
clone = src && isPlainObject(src) ? src : {};
}
// Never move original objects, clone them
target[name] = extend(deep, clone, copy);
// Don't bring in undefined values
} else if (copy !== undefined) {
target[name] = copy;
}
}
}
}
// Return the modified object
return target;
};
function inArray(item, arr, fromIndex) {
for (var i = fromIndex || 0; i < arr[LEXICON.l]; i++)
if (arr[i] === item)
return i;
return -1;
}
function isFunction(obj) {
return _type(obj) == TYPES.f;
};
function isEmptyObject(obj) {
for (var name in obj)
return false;
return true;
};
function isPlainObject(obj) {
if (!obj || _type(obj) != TYPES.o)
return false;
var key;
var proto = LEXICON.p;
var hasOwnProperty = Object[proto].hasOwnProperty;
var hasOwnConstructor = hasOwnProperty.call(obj, 'constructor');
var hasIsPrototypeOf = obj.constructor && obj.constructor[proto] && hasOwnProperty.call(obj.constructor[proto], 'isPrototypeOf');
if (obj.constructor && !hasOwnConstructor && !hasIsPrototypeOf) {
return false;
}
for (key in obj) { /**/ }
return _type(key) == TYPES.u || hasOwnProperty.call(obj, key);
};
function each(obj, callback) {
var i = 0;
if (isArrayLike(obj)) {
for (; i < obj[LEXICON.l]; i++) {
if (callback.call(obj[i], i, obj[i]) === false)
break;
}
}
else {
for (i in obj) {
if (callback.call(obj[i], i, obj[i]) === false)
break;
}
}
return obj;
};
function isArrayLike(obj) {
var length = !!obj && [LEXICON.l] in obj && obj[LEXICON.l];
var t = _type(obj);
return isFunction(t) ? false : (t == TYPES.a || length === 0 || _type(length) == TYPES.n && length > 0 && (length - 1) in obj);
}
function stripAndCollapse(value) {
var tokens = value.match(_rnothtmlwhite) || [];
return tokens.join(_strSpace);
}
function matches(elem, selector) {
var nodeList = (elem.parentNode || document).querySelectorAll(selector) || [];
var i = nodeList[LEXICON.l];
while (i--)
if (nodeList[i] == elem)
return true;
return false;
}
function insertAdjacentElement(el, strategy, child) {
if (_type(child) == TYPES.a) {
for (var i = 0; i < child[LEXICON.l]; i++)
insertAdjacentElement(el, strategy, child[i]);
}
else if (_type(child) == TYPES.s)
el.insertAdjacentHTML(strategy, child);
else
el.insertAdjacentElement(strategy, child.nodeType ? child : child[0]);
}
function setCSSVal(el, prop, val) {
try {
if (el[LEXICON.s][prop] !== undefined)
el[LEXICON.s][prop] = parseCSSVal(prop, val);
} catch (e) { }
}
function parseCSSVal(prop, val) {
if (!_cssNumber[prop.toLowerCase()] && _type(val) == TYPES.n)
val += 'px';
return val;
}
function startNextAnimationInQ(animObj, removeFromQ) {
var index;
var nextAnim;
if (removeFromQ !== false)
animObj.q.splice(0, 1);
if (animObj.q[LEXICON.l] > 0) {
nextAnim = animObj.q[0];
animate(animObj.el, nextAnim.props, nextAnim.duration, nextAnim.easing, nextAnim.complete, true);
}
else {
index = inArray(animObj, _animations);
if (index > -1)
_animations.splice(index, 1);
}
}
function setAnimationValue(el, prop, value) {
if (prop === _strScrollLeft || prop === _strScrollTop)
el[prop] = value;
else
setCSSVal(el, prop, value);
}
function animate(el, props, options, easing, complete, guaranteedNext) {
var hasOptions = isPlainObject(options);
var from = {};
var to = {};
var i = 0;
var key;
var animObj;
var start;
var progress;
var step;
var specialEasing;
var duration;
if (hasOptions) {
easing = options.easing;
start = options.start;
progress = options.progress;
step = options.step;
specialEasing = options.specialEasing;
complete = options.complete;
duration = options.duration;
}
else
duration = options;
specialEasing = specialEasing || {};
duration = duration || 400;
easing = easing || 'swing';
guaranteedNext = guaranteedNext || false;
for (; i < _animations[LEXICON.l]; i++) {
if (_animations[i].el === el) {
animObj = _animations[i];
break;
}
}
if (!animObj) {
animObj = {
el: el,
q: []
};
_animations.push(animObj);
}
for (key in props) {
if (key === _strScrollLeft || key === _strScrollTop)
from[key] = el[key];
else
from[key] = FakejQuery(el).css(key);
}
for (key in from) {
if (from[key] !== props[key] && props[key] !== undefined)
to[key] = props[key];
}
if (!isEmptyObject(to)) {
var timeNow;
var end;
var percent;
var fromVal;
var toVal;
var easedVal;
var timeStart;
var frame;
var elapsed;
var qPos = guaranteedNext ? 0 : inArray(qObj, animObj.q);
var qObj = {
props: to,
duration: hasOptions ? options : duration,
easing: easing,
complete: complete
};
if (qPos === -1) {
qPos = animObj.q[LEXICON.l];
animObj.q.push(qObj);
}
if (qPos === 0) {
if (duration > 0) {
timeStart = COMPATIBILITY.now();
frame = function () {
timeNow = COMPATIBILITY.now();
elapsed = (timeNow - timeStart);
end = qObj.stop || elapsed >= duration;
percent = 1 - ((MATH.max(0, timeStart + duration - timeNow) / duration) || 0);
for (key in to) {
fromVal = parseFloat(from[key]);
toVal = parseFloat(to[key]);
easedVal = (toVal - fromVal) * EASING[specialEasing[key] || easing](percent, percent * duration, 0, 1, duration) + fromVal;
setAnimationValue(el, key, easedVal);
if (isFunction(step)) {
step(easedVal, {
elem: el,
prop: key,
start: fromVal,
now: easedVal,
end: toVal,
pos: percent,
options: {
easing: easing,
speacialEasing: specialEasing,
duration: duration,
complete: complete,
step: step
},
startTime: timeStart
});
}
}
if (isFunction(progress))
progress({}, percent, MATH.max(0, duration - elapsed));
if (end) {
startNextAnimationInQ(animObj);
if (isFunction(complete))
complete();
}
else
qObj.frame = COMPATIBILITY.rAF()(frame);
};
qObj.frame = COMPATIBILITY.rAF()(frame);
}
else {
for (key in to)
setAnimationValue(el, key, to[key]);
startNextAnimationInQ(animObj);
}
}
}
else if (guaranteedNext)
startNextAnimationInQ(animObj);
}
function stop(el, clearQ, jumpToEnd) {
var animObj;
var qObj;
var key;
var i = 0;
for (; i < _animations[LEXICON.l]; i++) {
animObj = _animations[i];
if (animObj.el === el) {
if (animObj.q[LEXICON.l] > 0) {
qObj = animObj.q[0];
qObj.stop = true;
COMPATIBILITY.cAF()(qObj.frame);
animObj.q.splice(0, 1);
if (jumpToEnd)
for (key in qObj.props)
setAnimationValue(el, key, qObj.props[key]);
if (clearQ)
animObj.q = [];
else
startNextAnimationInQ(animObj, false);
}
break;
}
}
}
function elementIsVisible(el) {
return !!(el[LEXICON.oW] || el[LEXICON.oH] || el.getClientRects()[LEXICON.l]);
}
function FakejQuery(selector) {
if (arguments[LEXICON.l] === 0)
return this;
var base = new FakejQuery();
var elements = selector;
var i = 0;
var elms;
var el;
if (_type(selector) == TYPES.s) {
elements = [];
if (selector.charAt(0) === '<') {
el = document.createElement('div');
el.innerHTML = selector;
elms = el.children;
}
else {
elms = document.querySelectorAll(selector);
}
for (; i < elms[LEXICON.l]; i++)
elements.push(elms[i]);
}
if (elements) {
if (_type(elements) != TYPES.s && (!isArrayLike(elements) || elements === window || elements === elements.self))
elements = [elements];
for (i = 0; i < elements[LEXICON.l]; i++)
base[i] = elements[i];
base[LEXICON.l] = elements[LEXICON.l];
}
return base;
};
FakejQuery[LEXICON.p] = {
//EVENTS:
on: function (eventName, handler) {
eventName = (eventName || _strEmpty).match(_rnothtmlwhite) || [_strEmpty];
var eventNameLength = eventName[LEXICON.l];
var i = 0;
var el;
return this.each(function () {
el = this;
try {
if (el.addEventListener) {
for (; i < eventNameLength; i++)
el.addEventListener(eventName[i], handler);
}
else if (el.detachEvent) {
for (; i < eventNameLength; i++)
el.attachEvent('on' + eventName[i], handler);
}
} catch (e) { }
});
},
off: function (eventName, handler) {
eventName = (eventName || _strEmpty).match(_rnothtmlwhite) || [_strEmpty];
var eventNameLength = eventName[LEXICON.l];
var i = 0;
var el;
return this.each(function () {
el = this;
try {
if (el.removeEventListener) {
for (; i < eventNameLength; i++)
el.removeEventListener(eventName[i], handler);
}
else if (el.detachEvent) {
for (; i < eventNameLength; i++)
el.detachEvent('on' + eventName[i], handler);
}
} catch (e) { }
});
},
one: function (eventName, handler) {
eventName = (eventName || _strEmpty).match(_rnothtmlwhite) || [_strEmpty];
return this.each(function () {
var el = FakejQuery(this);
FakejQuery.each(eventName, function (i, oneEventName) {
var oneHandler = function (e) {
handler.call(this, e);
el.off(oneEventName, oneHandler);
};
el.on(oneEventName, oneHandler);
});
});
},
trigger: function (eventName) {
var el;
var event;
return this.each(function () {
el = this;
if (document.createEvent) {
event = document.createEvent('HTMLEvents');
event.initEvent(eventName, true, false);
el.dispatchEvent(event);
}
else {
el.fireEvent('on' + eventName);
}
});
},
//DOM NODE INSERTING / REMOVING:
append: function (child) {
return this.each(function () { insertAdjacentElement(this, 'beforeend', child); });
},
prepend: function (child) {
return this.each(function () { insertAdjacentElement(this, 'afterbegin', child); });
},
before: function (child) {
return this.each(function () { insertAdjacentElement(this, 'beforebegin', child); });
},
after: function (child) {
return this.each(function () { insertAdjacentElement(this, 'afterend', child); });
},
remove: function () {
return this.each(function () {
var el = this;
var parentNode = el.parentNode;
if (parentNode != null)
parentNode.removeChild(el);
});
},
unwrap: function () {
var parents = [];
var i;
var el;
var parent;
this.each(function () {
parent = this.parentNode;
if (inArray(parent, parents) === - 1)
parents.push(parent);
});
for (i = 0; i < parents[LEXICON.l]; i++) {
el = parents[i];
parent = el.parentNode;
while (el.firstChild)
parent.insertBefore(el.firstChild, el);
parent.removeChild(el);
}
return this;
},
wrapAll: function (wrapperHTML) {
var i;
var nodes = this;
var wrapper = FakejQuery(wrapperHTML)[0];
var deepest = wrapper;
var parent = nodes[0].parentNode;
var previousSibling = nodes[0].previousSibling;
while (deepest.childNodes[LEXICON.l] > 0)
deepest = deepest.childNodes[0];
for (i = 0; nodes[LEXICON.l] - i; deepest.firstChild === nodes[0] && i++)
deepest.appendChild(nodes[i]);
var nextSibling = previousSibling ? previousSibling.nextSibling : parent.firstChild;
parent.insertBefore(wrapper, nextSibling);
return this;
},
wrapInner: function (wrapperHTML) {
return this.each(function () {
var el = FakejQuery(this);
var contents = el.contents();
if (contents[LEXICON.l])
contents.wrapAll(wrapperHTML);
else
el.append(wrapperHTML);
});
},
wrap: function (wrapperHTML) {
return this.each(function () { FakejQuery(this).wrapAll(wrapperHTML); });
},
//DOM NODE MANIPULATION / INFORMATION:
css: function (styles, val) {
var el;
var key;
var cptStyle;
var getCptStyle = window.getComputedStyle;
if (_type(styles) == TYPES.s) {
if (val === undefined) {
el = this[0];
cptStyle = getCptStyle ? getCptStyle(el, null) : el.currentStyle[styles];
//https://bugzilla.mozilla.org/show_bug.cgi?id=548397 can be null sometimes if iframe with display: none (firefox only!)
return getCptStyle ? cptStyle != null ? cptStyle.getPropertyValue(styles) : el[LEXICON.s][styles] : cptStyle;
}
else {
return this.each(function () {
setCSSVal(this, styles, val);
});
}
}
else {
return this.each(function () {
for (key in styles)
setCSSVal(this, key, styles[key]);
});
}
},
hasClass: function (className) {
var elem, i = 0;
var classNamePrepared = _strSpace + className + _strSpace;
var classList;
while ((elem = this[i++])) {
classList = elem.classList;
if (classList && classList.contains(className))
return true;
else if (elem.nodeType === 1 && (_strSpace + stripAndCollapse(elem.className + _strEmpty) + _strSpace).indexOf(classNamePrepared) > -1)
return true;
}
return false;
},
addClass: function (className) {
var classes;
var elem;
var cur;
var curValue;
var clazz;
var finalValue;
var supportClassList;
var elmClassList;
var i = 0;
var v = 0;
if (className) {
classes = className.match(_rnothtmlwhite) || [];
while ((elem = this[i++])) {
elmClassList = elem.classList;
if (supportClassList === undefined)
supportClassList = elmClassList !== undefined;
if (supportClassList) {
while ((clazz = classes[v++]))
elmClassList.add(clazz);
}
else {
curValue = elem.className + _strEmpty;
cur = elem.nodeType === 1 && (_strSpace + stripAndCollapse(curValue) + _strSpace);
if (cur) {
while ((clazz = classes[v++]))
if (cur.indexOf(_strSpace + clazz + _strSpace) < 0)
cur += clazz + _strSpace;
finalValue = stripAndCollapse(cur);
if (curValue !== finalValue)
elem.className = finalValue;
}
}
}
}
return this;
},
removeClass: function (className) {
var classes;
var elem;
var cur;
var curValue;
var clazz;
var finalValue;
var supportClassList;
var elmClassList;
var i = 0;
var v = 0;
if (className) {
classes = className.match(_rnothtmlwhite) || [];
while ((elem = this[i++])) {
elmClassList = elem.classList;
if (supportClassList === undefined)
supportClassList = elmClassList !== undefined;
if (supportClassList) {
while ((clazz = classes[v++]))
elmClassList.remove(clazz);
}
else {
curValue = elem.className + _strEmpty;
cur = elem.nodeType === 1 && (_strSpace + stripAndCollapse(curValue) + _strSpace);
if (cur) {
while ((clazz = classes[v++]))
while (cur.indexOf(_strSpace + clazz + _strSpace) > -1)
cur = cur.replace(_strSpace + clazz + _strSpace, _strSpace);
finalValue = stripAndCollapse(cur);
if (curValue !== finalValue)
elem.className = finalValue;
}
}
}
}
return this;
},
hide: function () {
return this.each(function () { this[LEXICON.s].display = 'none'; });
},
show: function () {
return this.each(function () { this[LEXICON.s].display = 'block'; });
},
attr: function (attrName, value) {
var i = 0;
var el;
while (el = this[i++]) {
if (value === undefined)
return el.getAttribute(attrName);
el.setAttribute(attrName, value);
}
return this;
},
removeAttr: function (attrName) {
return this.each(function () { this.removeAttribute(attrName); });
},
offset: function () {
var el = this[0];
var rect = el[LEXICON.bCR]();
var scrollLeft = window.pageXOffset || document.documentElement[_strScrollLeft];
var scrollTop = window.pageYOffset || document.documentElement[_strScrollTop];
return {
top: rect.top + scrollTop,
left: rect.left + scrollLeft
};
},
position: function () {
var el = this[0];
return {
top: el.offsetTop,
left: el.offsetLeft
};
},
scrollLeft: function (value) {
var i = 0;
var el;
while (el = this[i++]) {
if (value === undefined)
return el[_strScrollLeft];
el[_strScrollLeft] = value;
}
return this;
},
scrollTop: function (value) {
var i = 0;
var el;
while (el = this[i++]) {
if (value === undefined)
return el[_strScrollTop];
el[_strScrollTop] = value;
}
return this;
},
val: function (value) {
var el = this[0];
if (!value)
return el.value;
el.value = value;
return this;
},
//DOM TRAVERSAL / FILTERING:
first: function () {
return this.eq(0);
},
last: function () {
return this.eq(-1);
},
eq: function (index) {
return FakejQuery(this[index >= 0 ? index : this[LEXICON.l] + index]);
},
find: function (selector) {
var children = [];
var i;
this.each(function () {
var el = this;
var ch = el.querySelectorAll(selector);
for (i = 0; i < ch[LEXICON.l]; i++)
children.push(ch[i]);
});
return FakejQuery(children);
},
children: function (selector) {
var children = [];
var el;
var ch;
var i;
this.each(function () {
ch = this.children;
for (i = 0; i < ch[LEXICON.l]; i++) {
el = ch[i];
if (selector) {
if ((el.matches && el.matches(selector)) || matches(el, selector))
children.push(el);
}
else
children.push(el);
}
});
return FakejQuery(children);
},
parent: function (selector) {
var parents = [];
var parent;
this.each(function () {
parent = this.parentNode;
if (selector ? FakejQuery(parent).is(selector) : true)
parents.push(parent);
});
return FakejQuery(parents);
},
is: function (selector) {
var el;
var i;
for (i = 0; i < this[LEXICON.l]; i++) {
el = this[i];
if (selector === ':visible')
return elementIsVisible(el);
if (selector === ':hidden')
return !elementIsVisible(el);
if ((el.matches && el.matches(selector)) || matches(el, selector))
return true;
}
return false;
},
contents: function () {
var contents = [];
var childs;
var i;
this.each(function () {
childs = this.childNodes;
for (i = 0; i < childs[LEXICON.l]; i++)
contents.push(childs[i]);
});
return FakejQuery(contents);
},
each: function (callback) {
return each(this, callback);
},
//ANIMATION:
animate: function (props, duration, easing, complete) {
return this.each(function () { animate(this, props, duration, easing, complete); });
},
stop: function (clearQ, jump) {
return this.each(function () { stop(this, clearQ, jump); });
}
};
extend(FakejQuery, {
extend: extend,
inArray: inArray,
isEmptyObject: isEmptyObject,
isPlainObject: isPlainObject,
each: each
});
return FakejQuery;
})();
var INSTANCES = (function () {
var _targets = [];
var _instancePropertyString = '__overlayScrollbars__';
/**
* Register, unregister or get a certain (or all) instances.
* Register: Pass the target and the instance.
* Unregister: Pass the target and null.
* Get Instance: Pass the target from which the instance shall be got.
* Get Targets: Pass no arguments.
* @param target The target to which the instance shall be registered / from which the instance shall be unregistered / the instance shall be got
* @param instance The instance.
* @returns {*|void} Returns the instance from the given target.
*/
return function (target, instance) {
var argLen = arguments[LEXICON.l];
if (argLen < 1) {
//return all targets
return _targets;
}
else {
if (instance) {
//register instance
target[_instancePropertyString] = instance;
_targets.push(target);
}
else {
var index = COMPATIBILITY.inA(target, _targets);
if (index > -1) {
if (argLen > 1) {
//unregister instance
delete target[_instancePropertyString];
_targets.splice(index, 1);
}
else {
//get instance from target
return _targets[index][_instancePropertyString];
}
}
}
}
}
})();
var PLUGIN = (function () {
var _plugin;
var _pluginsGlobals;
var _pluginsAutoUpdateLoop;
var _pluginsExtensions = [];
var _pluginsOptions = (function () {
var type = COMPATIBILITY.type;
var possibleTemplateTypes = [
TYPES.b, //boolean
TYPES.n, //number
TYPES.s, //string
TYPES.a, //array
TYPES.o, //object
TYPES.f, //function
TYPES.z //null
];
var restrictedStringsSplit = ' ';
var restrictedStringsPossibilitiesSplit = ':';
var classNameAllowedValues = [TYPES.z, TYPES.s];
var numberAllowedValues = TYPES.n;
var booleanNullAllowedValues = [TYPES.z, TYPES.b];
var booleanTrueTemplate = [true, TYPES.b];
var booleanFalseTemplate = [false, TYPES.b];
var callbackTemplate = [null, [TYPES.z, TYPES.f]];
var inheritedAttrsTemplate = [['style', 'class'], [TYPES.s, TYPES.a, TYPES.z]];
var resizeAllowedValues = 'n:none b:both h:horizontal v:vertical';
var overflowBehaviorAllowedValues = 'v-h:visible-hidden v-s:visible-scroll s:scroll h:hidden';
var scrollbarsVisibilityAllowedValues = 'v:visible h:hidden a:auto';
var scrollbarsAutoHideAllowedValues = 'n:never s:scroll l:leave m:move';
var optionsDefaultsAndTemplate = {
className: ['os-theme-dark', classNameAllowedValues], //null || string
resize: ['none', resizeAllowedValues], //none || both || horizontal || vertical || n || b || h || v
sizeAutoCapable: booleanTrueTemplate, //true || false
clipAlways: booleanTrueTemplate, //true || false
normalizeRTL: booleanTrueTemplate, //true || false
paddingAbsolute: booleanFalseTemplate, //true || false
autoUpdate: [null, booleanNullAllowedValues], //true || false || null
autoUpdateInterval: [33, numberAllowedValues], //number
nativeScrollbarsOverlaid: {
showNativeScrollbars: booleanFalseTemplate, //true || false
initialize: booleanTrueTemplate //true || false
},
overflowBehavior: {
x: ['scroll', overflowBehaviorAllowedValues], //visible-hidden || visible-scroll || hidden || scroll || v-h || v-s || h || s
y: ['scroll', overflowBehaviorAllowedValues] //visible-hidden || visible-scroll || hidden || scroll || v-h || v-s || h || s
},
scrollbars: {
visibility: ['auto', scrollbarsVisibilityAllowedValues], //visible || hidden || auto || v || h || a
autoHide: ['never', scrollbarsAutoHideAllowedValues], //never || scroll || leave || move || n || s || l || m
autoHideDelay: [800, numberAllowedValues], //number
dragScrolling: booleanTrueTemplate, //true || false
clickScrolling: booleanFalseTemplate, //true || false
touchSupport: booleanTrueTemplate, //true || false
snapHandle: booleanFalseTemplate //true || false
},
textarea: {
dynWidth: booleanFalseTemplate, //true || false
dynHeight: booleanFalseTemplate, //true || false
inheritedAttrs: inheritedAttrsTemplate //string || array || null
},
callbacks: {
onInitialized: callbackTemplate, //null || function
onInitializationWithdrawn: callbackTemplate, //null || function
onDestroyed: callbackTemplate, //null || function
onScrollStart: callbackTemplate, //null || function
onScroll: callbackTemplate, //null || function
onScrollStop: callbackTemplate, //null || function
onOverflowChanged: callbackTemplate, //null || function
onOverflowAmountChanged: callbackTemplate, //null || function
onDirectionChanged: callbackTemplate, //null || function
onContentSizeChanged: callbackTemplate, //null || function
onHostSizeChanged: callbackTemplate, //null || function
onUpdated: callbackTemplate //null || function
}
};
var convert = function (template) {
var recursive = function (obj) {
var key;
var val;
var valType;
for (key in obj) {
if (!obj[LEXICON.hOP](key))
continue;
val = obj[key];
valType = type(val);
if (valType == TYPES.a)
obj[key] = val[template ? 1 : 0];
else if (valType == TYPES.o)
obj[key] = recursive(val);
}
return obj;
};
return recursive(FRAMEWORK.extend(true, {}, optionsDefaultsAndTemplate));
};
return {
_defaults: convert(),
_template: convert(true),
/**
* Validates the passed object by the passed template.
* @param obj The object which shall be validated.
* @param template The template which defines the allowed values and types.
* @param writeErrors True if errors shall be logged to the console.
* @param diffObj If a object is passed then only valid differences to this object will be returned.
* @returns {{}} A object which contains two objects called "default" and "prepared" which contains only the valid properties of the passed original object and discards not different values compared to the passed diffObj.
*/
_validate: function (obj, template, writeErrors, diffObj) {
var validatedOptions = {};
var validatedOptionsPrepared = {};
var objectCopy = FRAMEWORK.extend(true, {}, obj);
var inArray = FRAMEWORK.inArray;
var isEmptyObj = FRAMEWORK.isEmptyObject;
var checkObjectProps = function (data, template, diffData, validatedOptions, validatedOptionsPrepared, prevPropName) {
for (var prop in template) {
if (template[LEXICON.hOP](prop) && data[LEXICON.hOP](prop)) {
var isValid = false;
var isDiff = false;
var templateValue = template[prop];
var templateValueType = type(templateValue);
var templateIsComplex = templateValueType == TYPES.o;
var templateTypes = type(templateValue) != TYPES.a ? [templateValue] : templateValue;
var dataDiffValue = diffData[prop];
var dataValue = data[prop];
var dataValueType = type(dataValue);
var propPrefix = prevPropName ? prevPropName + '.' : '';
var error = "The option \"" + propPrefix + prop + "\" wasn't set, because";
var errorPossibleTypes = [];
var errorRestrictedStrings = [];
var restrictedStringValuesSplit;
var restrictedStringValuesPossibilitiesSplit;
var isRestrictedValue;
var mainPossibility;
var currType;
var i;
var v;
var j;
dataDiffValue = dataDiffValue === undefined ? {} : dataDiffValue;
//if the template has a object as value, it means that the options are complex (verschachtelt)
if (templateIsComplex && dataValueType == TYPES.o) {
validatedOptions[prop] = {};
validatedOptionsPrepared[prop] = {};
checkObjectProps(dataValue, templateValue, dataDiffValue, validatedOptions[prop], validatedOptionsPrepared[prop], propPrefix + prop);
FRAMEWORK.each([data, validatedOptions, validatedOptionsPrepared], function (index, value) {
if (isEmptyObj(value[prop])) {
delete value[prop];
}
});
}
else if (!templateIsComplex) {
for (i = 0; i < templateTypes[LEXICON.l]; i++) {
currType = templateTypes[i];
templateValueType = type(currType);
//if currtype is string and starts with restrictedStringPrefix and end with restrictedStringSuffix
isRestrictedValue = templateValueType == TYPES.s && inArray(currType, possibleTemplateTypes) === -1;
if (isRestrictedValue) {
errorPossibleTypes.push(TYPES.s);
//split it into a array which contains all possible values for example: ["y:yes", "n:no", "m:maybe"]
restrictedStringValuesSplit = currType.split(restrictedStringsSplit);
errorRestrictedStrings = errorRestrictedStrings.concat(restrictedStringValuesSplit);
for (v = 0; v < restrictedStringValuesSplit[LEXICON.l]; v++) {
//split the possible values into their possibiliteis for example: ["y", "yes"] -> the first is always the mainPossibility
restrictedStringValuesPossibilitiesSplit = restrictedStringValuesSplit[v].split(restrictedStringsPossibilitiesSplit);
mainPossibility = restrictedStringValuesPossibilitiesSplit[0];
for (j = 0; j < restrictedStringValuesPossibilitiesSplit[LEXICON.l]; j++) {
//if any possibility matches with the dataValue, its valid
if (dataValue === restrictedStringValuesPossibilitiesSplit[j]) {
isValid = true;
break;
}
}
if (isValid)
break;
}
}
else {
errorPossibleTypes.push(currType);
if (dataValueType === currType) {
isValid = true;
break;
}
}
}
if (isValid) {
isDiff = dataValue !== dataDiffValue;
if (isDiff)
validatedOptions[prop] = dataValue;
if (isRestrictedValue ? inArray(dataDiffValue, restrictedStringValuesPossibilitiesSplit) < 0 : isDiff)
validatedOptionsPrepared[prop] = isRestrictedValue ? mainPossibility : dataValue;
}
else if (writeErrors) {
console.warn(error + " it doesn't accept the type [ " + dataValueType.toUpperCase() + " ] with the value of \"" + dataValue + "\".\r\n" +
"Accepted types are: [ " + errorPossibleTypes.join(', ').toUpperCase() + " ]." +
(errorRestrictedStrings[length] > 0 ? "\r\nValid strings are: [ " + errorRestrictedStrings.join(', ').split(restrictedStringsPossibilitiesSplit).join(', ') + " ]." : ''));
}
delete data[prop];
}
}
}
};
checkObjectProps(objectCopy, template, diffObj || {}, validatedOptions, validatedOptionsPrepared);
//add values which aren't specified in the template to the finished validated object to prevent them from being discarded
/*
if(keepForeignProps) {
FRAMEWORK.extend(true, validatedOptions, objectCopy);
FRAMEWORK.extend(true, validatedOptionsPrepared, objectCopy);
}
*/
if (!isEmptyObj(objectCopy) && writeErrors)
console.warn('The following options are discarded due to invalidity:\r\n' + window.JSON.stringify(objectCopy, null, 2));
return {
_default: validatedOptions,
_prepared: validatedOptionsPrepared
};
}
}
}());
/**
* Initializes the object which contains global information about the plugin and each instance of it.
*/
function initOverlayScrollbarsStatics() {
if (!_pluginsGlobals)
_pluginsGlobals = new OverlayScrollbarsGlobals(_pluginsOptions._defaults);
if (!_pluginsAutoUpdateLoop)
_pluginsAutoUpdateLoop = new OverlayScrollbarsAutoUpdateLoop(_pluginsGlobals);
}
/**
* The global object for the OverlayScrollbars objects. It contains resources which every OverlayScrollbars object needs. This object is initialized only once: if the first OverlayScrollbars object gets initialized.
* @param defaultOptions
* @constructor
*/
function OverlayScrollbarsGlobals(defaultOptions) {
var _base = this;
var strOverflow = 'overflow';
var strHidden = 'hidden';
var strScroll = 'scroll';
var bodyElement = FRAMEWORK('body');
var scrollbarDummyElement = FRAMEWORK('<div id="os-dummy-scrollbar-size"><div></div></div>');
var scrollbarDummyElement0 = scrollbarDummyElement[0];
var dummyContainerChild = FRAMEWORK(scrollbarDummyElement.children('div').eq(0));
bodyElement.append(scrollbarDummyElement);
scrollbarDummyElement.hide().show(); //fix IE8 bug (incorrect measuring)
var nativeScrollbarSize = calcNativeScrollbarSize(scrollbarDummyElement0);
var nativeScrollbarIsOverlaid = {
x: nativeScrollbarSize.x === 0,
y: nativeScrollbarSize.y === 0
};
var msie = (function () {
var ua = window.navigator.userAgent;
var strIndexOf = 'indexOf';
var strSubString = 'substring';
var msie = ua[strIndexOf]('MSIE ');
var trident = ua[strIndexOf]('Trident/');
var edge = ua[strIndexOf]('Edge/');
var rv = ua[strIndexOf]('rv:');
var result;
var parseIntFunc = parseInt;
// IE 10 or older => return version number
if (msie > 0)
result = parseIntFunc(ua[strSubString](msie + 5, ua[strIndexOf]('.', msie)), 10);
// IE 11 => return version number
else if (trident > 0)
result = parseIntFunc(ua[strSubString](rv + 3, ua[strIndexOf]('.', rv)), 10);
// Edge (IE 12+) => return version number
else if (edge > 0)
result = parseIntFunc(ua[strSubString](edge + 5, ua[strIndexOf]('.', edge)), 10);
// other browser
return result;
})();
FRAMEWORK.extend(_base, {
defaultOptions: defaultOptions,
msie: msie,
autoUpdateLoop: false,
autoUpdateRecommended: !COMPATIBILITY.mO(),
nativeScrollbarSize: nativeScrollbarSize,
nativeScrollbarIsOverlaid: nativeScrollbarIsOverlaid,
nativeScrollbarStyling: (function () {
var result = false;
scrollbarDummyElement.addClass('os-viewport-native-scrollbars-invisible');
try {
result = (scrollbarDummyElement.css('scrollbar-width') === 'none' && (msie > 9 || !msie)) || window.getComputedStyle(scrollbarDummyElement0, '::-webkit-scrollbar').getPropertyValue('display') === 'none';
} catch (ex) { }
//fix opera bug: scrollbar styles will only appear if overflow value is scroll or auto during the activation of the style.
//and set overflow to scroll
//scrollbarDummyElement.css(strOverflow, strHidden).hide().css(strOverflow, strScroll).show();
//return (scrollbarDummyElement0[LEXICON.oH] - scrollbarDummyElement0[LEXICON.cH]) === 0 && (scrollbarDummyElement0[LEXICON.oW] - scrollbarDummyElement0[LEXICON.cW]) === 0;
return result;
})(),
overlayScrollbarDummySize: { x: 30, y: 30 },
cssCalc: (function () {
var dummyStyle = document.createElement('div')[LEXICON.s];
var strCalc = 'calc';
var i = -1;
var prop;
for (; i < VENDORS._cssPrefixes[LEXICON.l]; i++) {
prop = i < 0 ? strCalc : VENDORS._cssPrefixes[i] + strCalc;
dummyStyle.cssText = 'width:' + prop + '(1px);';
if (dummyStyle[LEXICON.l])
return prop;
}
return null;
})(),
restrictedMeasuring: (function () {
//https://bugzilla.mozilla.org/show_bug.cgi?id=1439305
//since 1.11.0 always false -> fixed via CSS (hopefully)
scrollbarDummyElement.css(strOverflow, strHidden);
var scrollSize = {
w: scrollbarDummyElement0[LEXICON.sW],
h: scrollbarDummyElement0[LEXICON.sH]
};
scrollbarDummyElement.css(strOverflow, 'visible');
var scrollSize2 = {
w: scrollbarDummyElement0[LEXICON.sW],
h: scrollbarDummyElement0[LEXICON.sH]
};
return (scrollSize.w - scrollSize2.w) !== 0 || (scrollSize.h - scrollSize2.h) !== 0;
})(),
rtlScrollBehavior: (function () {
scrollbarDummyElement.css({ 'overflow-y': strHidden, 'overflow-x': strScroll, 'direction': 'rtl' }).scrollLeft(0);
var dummyContainerOffset = scrollbarDummyElement.offset();
var dummyContainerChildOffset = dummyContainerChild.offset();
//https://github.com/KingSora/OverlayScrollbars/issues/187
scrollbarDummyElement.scrollLeft(-999);
var dummyContainerChildOffsetAfterScroll = dummyContainerChild.offset();
return {
//origin direction = determines if the zero scroll position is on the left or right side
//'i' means 'invert' (i === true means that the axis must be inverted to be correct)
//true = on the left side
//false = on the right side
i: dummyContainerOffset.left === dummyContainerChildOffset.left,
//negative = determines if the maximum scroll is positive or negative
//'n' means 'negate' (n === true means that the axis must be negated to be correct)
//true = negative
//false = positive
n: dummyContainerChildOffset.left !== dummyContainerChildOffsetAfterScroll.left
};
})(),
supportTransform: VENDORS._cssProperty('transform') !== undefined,
supportTransition: VENDORS._cssProperty('transition') !== undefined,
supportPassiveEvents: (function () {
var supportsPassive = false;
try {
window.addEventListener('test', null, Object.defineProperty({}, 'passive', {
get: function () {
supportsPassive = true;
}
}));
} catch (e) { }
return supportsPassive;
})(),
supportResizeObserver: !!COMPATIBILITY.rO(),
supportMutationObserver: !!COMPATIBILITY.mO()
});
scrollbarDummyElement.removeAttr(LEXICON.s).remove();
//Catch zoom event:
(function () {
if (nativeScrollbarIsOverlaid.x && nativeScrollbarIsOverlaid.y)
return;
var abs = MATH.abs;
var windowWidth = COMPATIBILITY.wW();
var windowHeight = COMPATIBILITY.wH();
var windowDpr = getWindowDPR();
var onResize = function () {
if (INSTANCES().length > 0) {
var newW = COMPATIBILITY.wW();
var newH = COMPATIBILITY.wH();
var deltaW = newW - windowWidth;
var deltaH = newH - windowHeight;
if (deltaW === 0 && deltaH === 0)
return;
var deltaWRatio = MATH.round(newW / (windowWidth / 100.0));
var deltaHRatio = MATH.round(newH / (windowHeight / 100.0));
var absDeltaW = abs(deltaW);
var absDeltaH = abs(deltaH);
var absDeltaWRatio = abs(deltaWRatio);
var absDeltaHRatio = abs(deltaHRatio);
var newDPR = getWindowDPR();
var deltaIsBigger = absDeltaW > 2 && absDeltaH > 2;
var difference = !differenceIsBiggerThanOne(absDeltaWRatio, absDeltaHRatio);
var dprChanged = newDPR !== windowDpr && windowDpr > 0;
var isZoom = deltaIsBigger && difference && dprChanged;
var oldScrollbarSize = _base.nativeScrollbarSize;
var newScrollbarSize;
if (isZoom) {
bodyElement.append(scrollbarDummyElement);
newScrollbarSize = _base.nativeScrollbarSize = calcNativeScrollbarSize(scrollbarDummyElement[0]);
scrollbarDummyElement.remove();
if (oldScrollbarSize.x !== newScrollbarSize.x || oldScrollbarSize.y !== newScrollbarSize.y) {
FRAMEWORK.each(INSTANCES(), function () {
if (INSTANCES(this))
INSTANCES(this).update('zoom');
});
}
}
windowWidth = newW;
windowHeight = newH;
windowDpr = newDPR;
}
};
function differenceIsBiggerThanOne(valOne, valTwo) {
var absValOne = abs(valOne);
var absValTwo = abs(valTwo);
return !(absValOne === absValTwo || absValOne + 1 === absValTwo || absValOne - 1 === absValTwo);
}
function getWindowDPR() {
var dDPI = window.screen.deviceXDPI || 0;
var sDPI = window.screen.logicalXDPI || 1;
return window.devicePixelRatio || (dDPI / sDPI);
}
FRAMEWORK(window).on('resize', onResize);
})();
function calcNativeScrollbarSize(measureElement) {
return {
x: measureElement[LEXICON.oH] - measureElement[LEXICON.cH],
y: measureElement[LEXICON.oW] - measureElement[LEXICON.cW]
};
}
}
/**
* The object which manages the auto update loop for all OverlayScrollbars objects. This object is initialized only once: if the first OverlayScrollbars object gets initialized.
* @constructor
*/
function OverlayScrollbarsAutoUpdateLoop(globals) {
var _base = this;
var _inArray = FRAMEWORK.inArray;
var _getNow = COMPATIBILITY.now;
var _strAutoUpdate = 'autoUpdate';
var _strAutoUpdateInterval = _strAutoUpdate + 'Interval';
var _strLength = LEXICON.l;
var _loopingInstances = [];
var _loopingInstancesIntervalCache = [];
var _loopIsActive = false;
var _loopIntervalDefault = 33;
var _loopInterval = _loopIntervalDefault;
var _loopTimeOld = _getNow();
var _loopID;
/**
* The auto update loop which will run every 50 milliseconds or less if the update interval of a instance is lower than 50 milliseconds.
*/
var loop = function () {
if (_loopingInstances[_strLength] > 0 && _loopIsActive) {
_loopID = COMPATIBILITY.rAF()(function () {
loop();
});
var timeNew = _getNow();
var timeDelta = timeNew - _loopTimeOld;
var lowestInterval;
var instance;
var instanceOptions;
var instanceAutoUpdateAllowed;
var instanceAutoUpdateInterval;
var now;
if (timeDelta > _loopInterval) {
_loopTimeOld = timeNew - (timeDelta % _loopInterval);
lowestInterval = _loopIntervalDefault;
for (var i = 0; i < _loopingInstances[_strLength]; i++) {
instance = _loopingInstances[i];
if (instance !== undefined) {
instanceOptions = instance.options();
instanceAutoUpdateAllowed = instanceOptions[_strAutoUpdate];
instanceAutoUpdateInterval = MATH.max(1, instanceOptions[_strAutoUpdateInterval]);
now = _getNow();
if ((instanceAutoUpdateAllowed === true || instanceAutoUpdateAllowed === null) && (now - _loopingInstancesIntervalCache[i]) > instanceAutoUpdateInterval) {
instance.update('auto');
_loopingInstancesIntervalCache[i] = new Date(now += instanceAutoUpdateInterval);
}
lowestInterval = MATH.max(1, MATH.min(lowestInterval, instanceAutoUpdateInterval));
}
}
_loopInterval = lowestInterval;
}
} else {
_loopInterval = _loopIntervalDefault;
}
};
/**
* Add OverlayScrollbars instance to the auto update loop. Only successful if the instance isn't already added.
* @param instance The instance which shall be updated in a loop automatically.
*/
_base.add = function (instance) {
if (_inArray(instance, _loopingInstances) === -1) {
_loopingInstances.push(instance);
_loopingInstancesIntervalCache.push(_getNow());
if (_loopingInstances[_strLength] > 0 && !_loopIsActive) {
_loopIsActive = true;
globals.autoUpdateLoop = _loopIsActive;
loop();
}
}
};
/**
* Remove OverlayScrollbars instance from the auto update loop. Only successful if the instance was added before.
* @param instance The instance which shall be updated in a loop automatically.
*/
_base.remove = function (instance) {
var index = _inArray(instance, _loopingInstances);
if (index > -1) {
//remove from loopingInstances list
_loopingInstancesIntervalCache.splice(index, 1);
_loopingInstances.splice(index, 1);
//correct update loop behavior
if (_loopingInstances[_strLength] === 0 && _loopIsActive) {
_loopIsActive = false;
globals.autoUpdateLoop = _loopIsActive;
if (_loopID !== undefined) {
COMPATIBILITY.cAF()(_loopID);
_loopID = -1;
}
}
}
};
}
/**
* A object which manages the scrollbars visibility of the target element.
* @param pluginTargetElement The element from which the scrollbars shall be hidden.
* @param options The custom options.
* @param extensions The custom extensions.
* @param globals
* @param autoUpdateLoop
* @returns {*}
* @constructor
*/
function OverlayScrollbarsInstance(pluginTargetElement, options, extensions, globals, autoUpdateLoop) {
//shortcuts
var type = COMPATIBILITY.type;
var inArray = FRAMEWORK.inArray;
var each = FRAMEWORK.each;
//make correct instanceof
var _base = new _plugin();
var _frameworkProto = FRAMEWORK[LEXICON.p];
//if passed element is no HTML element: skip and return
if (!isHTMLElement(pluginTargetElement))
return;
//if passed element is already initialized: set passed options if there are any and return its instance
if (INSTANCES(pluginTargetElement)) {
var inst = INSTANCES(pluginTargetElement);
inst.options(options);
return inst;
}
//globals:
var _nativeScrollbarIsOverlaid;
var _overlayScrollbarDummySize;
var _rtlScrollBehavior;
var _autoUpdateRecommended;
var _msieVersion;
var _nativeScrollbarStyling;
var _cssCalc;
var _nativeScrollbarSize;
var _supportTransition;
var _supportTransform;
var _supportPassiveEvents;
var _supportResizeObserver;
var _supportMutationObserver;
var _restrictedMeasuring;
//general readonly:
var _initialized;
var _destroyed;
var _isTextarea;
var _isBody;
var _documentMixed;
var _domExists;
//general:
var _isBorderBox;
var _sizeAutoObserverAdded;
var _paddingX;
var _paddingY;
var _borderX;
var _borderY;
var _marginX;
var _marginY;
var _isRTL;
var _sleeping;
var _contentBorderSize = {};
var _scrollHorizontalInfo = {};
var _scrollVerticalInfo = {};
var _viewportSize = {};
var _nativeScrollbarMinSize = {};
//naming:
var _strMinusHidden = '-hidden';
var _strMarginMinus = 'margin-';
var _strPaddingMinus = 'padding-';
var _strBorderMinus = 'border-';
var _strTop = 'top';
var _strRight = 'right';
var _strBottom = 'bottom';
var _strLeft = 'left';
var _strMinMinus = 'min-';
var _strMaxMinus = 'max-';
var _strWidth = 'width';
var _strHeight = 'height';
var _strFloat = 'float';
var _strEmpty = '';
var _strAuto = 'auto';
var _strSync = 'sync';
var _strScroll = 'scroll';
var _strHundredPercent = '100%';
var _strX = 'x';
var _strY = 'y';
var _strDot = '.';
var _strSpace = ' ';
var _strScrollbar = 'scrollbar';
var _strMinusHorizontal = '-horizontal';
var _strMinusVertical = '-vertical';
var _strScrollLeft = _strScroll + 'Left';
var _strScrollTop = _strScroll + 'Top';
var _strMouseTouchDownEvent = 'mousedown touchstart';
var _strMouseTouchUpEvent = 'mouseup touchend touchcancel';
var _strMouseTouchMoveEvent = 'mousemove touchmove';
var _strMouseTouchEnter = 'mouseenter';
var _strMouseTouchLeave = 'mouseleave';
var _strKeyDownEvent = 'keydown';
var _strKeyUpEvent = 'keyup';
var _strSelectStartEvent = 'selectstart';
var _strTransitionEndEvent = 'transitionend webkitTransitionEnd oTransitionEnd';
var _strResizeObserverProperty = '__overlayScrollbarsRO__';
//class names:
var _cassNamesPrefix = 'os-';
var _classNameHTMLElement = _cassNamesPrefix + 'html';
var _classNameHostElement = _cassNamesPrefix + 'host';
var _classNameHostTextareaElement = _classNameHostElement + '-textarea';
var _classNameHostScrollbarHorizontalHidden = _classNameHostElement + '-' + _strScrollbar + _strMinusHorizontal + _strMinusHidden;
var _classNameHostScrollbarVerticalHidden = _classNameHostElement + '-' + _strScrollbar + _strMinusVertical + _strMinusHidden;
var _classNameHostTransition = _classNameHostElement + '-transition';
var _classNameHostRTL = _classNameHostElement + '-rtl';
var _classNameHostResizeDisabled = _classNameHostElement + '-resize-disabled';
var _classNameHostScrolling = _classNameHostElement + '-scrolling';
var _classNameHostOverflow = _classNameHostElement + '-overflow';
var _classNameHostOverflowX = _classNameHostOverflow + '-x';
var _classNameHostOverflowY = _classNameHostOverflow + '-y';
var _classNameTextareaElement = _cassNamesPrefix + 'textarea';
var _classNameTextareaCoverElement = _classNameTextareaElement + '-cover';
var _classNamePaddingElement = _cassNamesPrefix + 'padding';
var _classNameViewportElement = _cassNamesPrefix + 'viewport';
var _classNameViewportNativeScrollbarsInvisible = _classNameViewportElement + '-native-scrollbars-invisible';
var _classNameViewportNativeScrollbarsOverlaid = _classNameViewportElement + '-native-scrollbars-overlaid';
var _classNameContentElement = _cassNamesPrefix + 'content';
var _classNameContentArrangeElement = _cassNamesPrefix + 'content-arrange';
var _classNameContentGlueElement = _cassNamesPrefix + 'content-glue';
var _classNameSizeAutoObserverElement = _cassNamesPrefix + 'size-auto-observer';
var _classNameResizeObserverElement = _cassNamesPrefix + 'resize-observer';
var _classNameResizeObserverItemElement = _cassNamesPrefix + 'resize-observer-item';
var _classNameResizeObserverItemFinalElement = _classNameResizeObserverItemElement + '-final';
var _classNameTextInherit = _cassNamesPrefix + 'text-inherit';
var _classNameScrollbar = _cassNamesPrefix + _strScrollbar;
var _classNameScrollbarTrack = _classNameScrollbar + '-track';
var _classNameScrollbarTrackOff = _classNameScrollbarTrack + '-off';
var _classNameScrollbarHandle = _classNameScrollbar + '-handle';
var _classNameScrollbarHandleOff = _classNameScrollbarHandle + '-off';
var _classNameScrollbarUnusable = _classNameScrollbar + '-unusable';
var _classNameScrollbarAutoHidden = _classNameScrollbar + '-' + _strAuto + _strMinusHidden;
var _classNameScrollbarCorner = _classNameScrollbar + '-corner';
var _classNameScrollbarCornerResize = _classNameScrollbarCorner + '-resize';
var _classNameScrollbarCornerResizeB = _classNameScrollbarCornerResize + '-both';
var _classNameScrollbarCornerResizeH = _classNameScrollbarCornerResize + _strMinusHorizontal;
var _classNameScrollbarCornerResizeV = _classNameScrollbarCornerResize + _strMinusVertical;
var _classNameScrollbarHorizontal = _classNameScrollbar + _strMinusHorizontal;
var _classNameScrollbarVertical = _classNameScrollbar + _strMinusVertical;
var _classNameDragging = _cassNamesPrefix + 'dragging';
var _classNameThemeNone = _cassNamesPrefix + 'theme-none';
var _classNamesDynamicDestroy = [
_classNameViewportNativeScrollbarsInvisible,
_classNameViewportNativeScrollbarsOverlaid,
_classNameScrollbarTrackOff,
_classNameScrollbarHandleOff,
_classNameScrollbarUnusable,
_classNameScrollbarAutoHidden,
_classNameScrollbarCornerResize,
_classNameScrollbarCornerResizeB,
_classNameScrollbarCornerResizeH,
_classNameScrollbarCornerResizeV,
_classNameDragging].join(_strSpace);
//callbacks:
var _callbacksInitQeueue = [];
//attrs viewport shall inherit from target
var _viewportAttrsFromTarget = [LEXICON.ti];
//options:
var _defaultOptions;
var _currentOptions;
var _currentPreparedOptions;
//extensions:
var _extensions = {};
var _extensionsPrivateMethods = 'added removed on contract';
//update
var _lastUpdateTime;
var _swallowedUpdateHints = {};
var _swallowedUpdateTimeout;
var _swallowUpdateLag = 42;
var _imgs = [];
//DOM elements:
var _windowElement;
var _documentElement;
var _htmlElement;
var _bodyElement;
var _targetElement; //the target element of this OverlayScrollbars object
var _hostElement; //the host element of this OverlayScrollbars object -> may be the same as targetElement
var _sizeAutoObserverElement; //observes size auto changes
var _sizeObserverElement; //observes size and padding changes
var _paddingElement; //manages the padding
var _viewportElement; //is the viewport of our scrollbar model
var _contentElement; //the element which holds the content
var _contentArrangeElement; //is needed for correct sizing of the content element (only if native scrollbars are overlays)
var _contentGlueElement; //has always the size of the content element
var _textareaCoverElement; //only applied if target is a textarea element. Used for correct size calculation and for prevention of uncontrolled scrolling
var _scrollbarCornerElement;
var _scrollbarHorizontalElement;
var _scrollbarHorizontalTrackElement;
var _scrollbarHorizontalHandleElement;
var _scrollbarVerticalElement;
var _scrollbarVerticalTrackElement;
var _scrollbarVerticalHandleElement;
var _windowElementNative;
var _documentElementNative;
var _targetElementNative;
var _hostElementNative;
var _sizeAutoObserverElementNative;
var _sizeObserverElementNative;
var _paddingElementNative;
var _viewportElementNative;
var _contentElementNative;
//Cache:
var _hostSizeCache;
var _contentScrollSizeCache;
var _arrangeContentSizeCache;
var _hasOverflowCache;
var _hideOverflowCache;
var _widthAutoCache;
var _heightAutoCache;
var _cssMaxValueCache;
var _cssBoxSizingCache;
var _cssPaddingCache;
var _cssBorderCache;
var _cssMarginCache;
var _cssDirectionCache;
var _cssDirectionDetectedCache;
var _paddingAbsoluteCache;
var _clipAlwaysCache;
var _contentGlueSizeCache;
var _overflowBehaviorCache;
var _overflowAmountCache;
var _ignoreOverlayScrollbarHidingCache;
var _autoUpdateCache;
var _sizeAutoCapableCache;
var _contentElementScrollSizeChangeDetectedCache;
var _hostElementSizeChangeDetectedCache;
var _scrollbarsVisibilityCache;
var _scrollbarsAutoHideCache;
var _scrollbarsClickScrollingCache;
var _scrollbarsDragScrollingCache;
var _resizeCache;
var _normalizeRTLCache;
var _classNameCache;
var _oldClassName;
var _textareaAutoWrappingCache;
var _textareaInfoCache;
var _textareaSizeCache;
var _textareaDynHeightCache;
var _textareaDynWidthCache;
var _bodyMinSizeCache;
var _displayIsHiddenCache;
var _updateAutoCache = {};
//MutationObserver:
var _mutationObserverHost;
var _mutationObserverContent;
var _mutationObserverHostCallback;
var _mutationObserverContentCallback;
var _mutationObserversConnected;
var _mutationObserverAttrsTextarea = ['wrap', 'cols', 'rows'];
var _mutationObserverAttrsHost = [LEXICON.i, LEXICON.c, LEXICON.s, 'open'].concat(_viewportAttrsFromTarget);
//events:
var _destroyEvents = [];
//textarea:
var _textareaHasFocus;
//scrollbars:
var _scrollbarsAutoHideTimeoutId;
var _scrollbarsAutoHideMoveTimeoutId;
var _scrollbarsAutoHideDelay;
var _scrollbarsAutoHideNever;
var _scrollbarsAutoHideScroll;
var _scrollbarsAutoHideMove;
var _scrollbarsAutoHideLeave;
var _scrollbarsHandleHovered;
var _scrollbarsHandlesDefineScrollPos;
//resize
var _resizeNone;
var _resizeBoth;
var _resizeHorizontal;
var _resizeVertical;
//==== Event Listener ====//
/**
* Adds or removes a event listener from the given element.
* @param element The element to which the event listener shall be applied or removed.
* @param eventNames The name(s) of the events.
* @param listener The method which shall be called.
* @param remove True if the handler shall be removed, false or undefined if the handler shall be added.
*/
function setupResponsiveEventListener(element, eventNames, listener, remove, passive) {
var collected = type(eventNames) == TYPES.a && type(listener) == TYPES.a;
var method = remove ? 'removeEventListener' : 'addEventListener';
var onOff = remove ? 'off' : 'on';
var events = collected ? false : eventNames.split(_strSpace)
var i = 0;
if (collected) {
for (; i < eventNames[LEXICON.l]; i++)
setupResponsiveEventListener(element, eventNames[i], listener[i], remove);
}
else {
for (; i < events[LEXICON.l]; i++) {
if (_supportPassiveEvents)
element[0][method](events[i], listener, { passive: passive || false });
else
element[onOff](events[i], listener);
}
}
}
function addDestroyEventListener(element, eventNames, listener, passive) {
setupResponsiveEventListener(element, eventNames, listener, false, passive);
_destroyEvents.push(COMPATIBILITY.bind(setupResponsiveEventListener, 0, element, eventNames, listener, true, passive));
}
//==== Resize Observer ====//
/**
* Adds or removes a resize observer from the given element.
* @param targetElement The element to which the resize observer shall be added or removed.
* @param onElementResizedCallback The callback which is fired every time the resize observer registers a size change or false / undefined if the resizeObserver shall be removed.
*/
function setupResizeObserver(targetElement, onElementResizedCallback) {
if (targetElement) {
var resizeObserver = COMPATIBILITY.rO();
var strAnimationStartEvent = 'animationstart mozAnimationStart webkitAnimationStart MSAnimationStart';
var strChildNodes = 'childNodes';
var constScroll = 3333333;
var callback = function () {
targetElement[_strScrollTop](constScroll)[_strScrollLeft](_isRTL ? _rtlScrollBehavior.n ? -constScroll : _rtlScrollBehavior.i ? 0 : constScroll : constScroll);
onElementResizedCallback();
};
//add resize observer:
if (onElementResizedCallback) {
if (_supportResizeObserver) {
var element = targetElement.addClass('observed').append(generateDiv(_classNameResizeObserverElement)).contents()[0];
var observer = element[_strResizeObserverProperty] = new resizeObserver(callback);
observer.observe(element);
}
else {
if (_msieVersion > 9 || !_autoUpdateRecommended) {
targetElement.prepend(
generateDiv(_classNameResizeObserverElement,
generateDiv({ c: _classNameResizeObserverItemElement, dir: 'ltr' },
generateDiv(_classNameResizeObserverItemElement,
generateDiv(_classNameResizeObserverItemFinalElement)
) +
generateDiv(_classNameResizeObserverItemElement,
generateDiv({ c: _classNameResizeObserverItemFinalElement, style: 'width: 200%; height: 200%' })
)
)
)
);
var observerElement = targetElement[0][strChildNodes][0][strChildNodes][0];
var shrinkElement = FRAMEWORK(observerElement[strChildNodes][1]);
var expandElement = FRAMEWORK(observerElement[strChildNodes][0]);
var expandElementChild = FRAMEWORK(expandElement[0][strChildNodes][0]);
var widthCache = observerElement[LEXICON.oW];
var heightCache = observerElement[LEXICON.oH];
var isDirty;
var rAFId;
var currWidth;
var currHeight;
var factor = 2;
var nativeScrollbarSize = globals.nativeScrollbarSize; //care don't make changes to this object!!!
var reset = function () {
/*
var sizeResetWidth = observerElement[LEXICON.oW] + nativeScrollbarSize.x * factor + nativeScrollbarSize.y * factor + _overlayScrollbarDummySize.x + _overlayScrollbarDummySize.y;
var sizeResetHeight = observerElement[LEXICON.oH] + nativeScrollbarSize.x * factor + nativeScrollbarSize.y * factor + _overlayScrollbarDummySize.x + _overlayScrollbarDummySize.y;
var expandChildCSS = {};
expandChildCSS[_strWidth] = sizeResetWidth;
expandChildCSS[_strHeight] = sizeResetHeight;
expandElementChild.css(expandChildCSS);
expandElement[_strScrollLeft](sizeResetWidth)[_strScrollTop](sizeResetHeight);
shrinkElement[_strScrollLeft](sizeResetWidth)[_strScrollTop](sizeResetHeight);
*/
expandElement[_strScrollLeft](constScroll)[_strScrollTop](constScroll);
shrinkElement[_strScrollLeft](constScroll)[_strScrollTop](constScroll);
};
var onResized = function () {
rAFId = 0;
if (!isDirty)
return;
widthCache = currWidth;
heightCache = currHeight;
callback();
};
var onScroll = function (event) {
currWidth = observerElement[LEXICON.oW];
currHeight = observerElement[LEXICON.oH];
isDirty = currWidth != widthCache || currHeight != heightCache;
if (event && isDirty && !rAFId) {
COMPATIBILITY.cAF()(rAFId);
rAFId = COMPATIBILITY.rAF()(onResized);
}
else if (!event)
onResized();
reset();
if (event) {
COMPATIBILITY.prvD(event);
COMPATIBILITY.stpP(event);
}
return false;
};
var expandChildCSS = {};
var observerElementCSS = {};
setTopRightBottomLeft(observerElementCSS, _strEmpty, [
-((nativeScrollbarSize.y + 1) * factor),
nativeScrollbarSize.x * -factor,
nativeScrollbarSize.y * -factor,
-((nativeScrollbarSize.x + 1) * factor)
]);
FRAMEWORK(observerElement).css(observerElementCSS);
expandElement.on(_strScroll, onScroll);
shrinkElement.on(_strScroll, onScroll);
targetElement.on(strAnimationStartEvent, function () {
onScroll(false);
});
//lets assume that the divs will never be that large and a constant value is enough
expandChildCSS[_strWidth] = constScroll;
expandChildCSS[_strHeight] = constScroll;
expandElementChild.css(expandChildCSS);
reset();
}
else {
var attachEvent = _documentElementNative.attachEvent;
var isIE = _msieVersion !== undefined;
if (attachEvent) {
targetElement.prepend(generateDiv(_classNameResizeObserverElement));
findFirst(targetElement, _strDot + _classNameResizeObserverElement)[0].attachEvent('onresize', callback);
}
else {
var obj = _documentElementNative.createElement(TYPES.o);
obj.setAttribute(LEXICON.ti, '-1');
obj.setAttribute(LEXICON.c, _classNameResizeObserverElement);
obj.onload = function () {
var wnd = this.contentDocument.defaultView;
wnd.addEventListener('resize', callback);
wnd.document.documentElement.style.display = 'none';
};
obj.type = 'text/html';
if (isIE)
targetElement.prepend(obj);
obj.data = 'about:blank';
if (!isIE)
targetElement.prepend(obj);
targetElement.on(strAnimationStartEvent, callback);
}
}
}
if (targetElement[0] === _sizeObserverElementNative) {
var directionChanged = function () {
var dir = _hostElement.css('direction');
var css = {};
var scrollLeftValue = 0;
var result = false;
if (dir !== _cssDirectionDetectedCache) {
if (dir === 'ltr') {
css[_strLeft] = 0;
css[_strRight] = _strAuto;
scrollLeftValue = constScroll;
}
else {
css[_strLeft] = _strAuto;
css[_strRight] = 0;
scrollLeftValue = _rtlScrollBehavior.n ? -constScroll : _rtlScrollBehavior.i ? 0 : constScroll;
}
//execution order is important for IE!!!
_sizeObserverElement.children().eq(0).css(css);
_sizeObserverElement[_strScrollLeft](scrollLeftValue)[_strScrollTop](constScroll);
_cssDirectionDetectedCache = dir;
result = true;
}
return result;
};
directionChanged();
addDestroyEventListener(targetElement, _strScroll, function (event) {
if (directionChanged())
update();
COMPATIBILITY.prvD(event);
COMPATIBILITY.stpP(event);
return false;
});
}
}
//remove resize observer:
else {
if (_supportResizeObserver) {
var element = targetElement.contents()[0];
var resizeObserverObj = element[_strResizeObserverProperty];
if (resizeObserverObj) {
resizeObserverObj.disconnect();
delete element[_strResizeObserverProperty];
}
}
else {
remove(targetElement.children(_strDot + _classNameResizeObserverElement).eq(0));
}
}
}
}
/**
* Freezes or unfreezes the given resize observer.
* @param targetElement The element to which the target resize observer is applied.
* @param freeze True if the resize observer shall be frozen, false otherwise.
function freezeResizeObserver(targetElement, freeze) {
if (targetElement !== undefined) {
if(freeze) {
if (_supportResizeObserver) {
var element = targetElement.contents()[0];
element[_strResizeObserverProperty].unobserve(element);
}
else {
targetElement = targetElement.children(_strDot + _classNameResizeObserverElement).eq(0);
var w = targetElement.css(_strWidth);
var h = targetElement.css(_strHeight);
var css = {};
css[_strWidth] = w;
css[_strHeight] = h;
targetElement.css(css);
}
}
else {
if (_supportResizeObserver) {
var element = targetElement.contents()[0];
element[_strResizeObserverProperty].observe(element);
}
else {
var css = { };
css[_strHeight] = _strEmpty;
css[_strWidth] = _strEmpty;
targetElement.children(_strDot + _classNameResizeObserverElement).eq(0).css(css);
}
}
}
}
*/
//==== Mutation Observers ====//
/**
* Creates MutationObservers for the host and content Element if they are supported.
*/
function createMutationObservers() {
if (_supportMutationObserver) {
var mutationObserverContentLag = 11;
var mutationObserver = COMPATIBILITY.mO();
var contentLastUpdate = COMPATIBILITY.now();
var mutationTarget;
var mutationAttrName;
var contentTimeout;
var now;
var sizeAuto;
var action;
_mutationObserverHostCallback = function (mutations) {
var doUpdate = false;
var mutation;
var mutatedAttrs = [];
if (_initialized && !_sleeping) {
each(mutations, function () {
mutation = this;
mutationTarget = mutation.target;
mutationAttrName = mutation.attributeName;
if(!doUpdate) {
if (mutationAttrName === LEXICON.c)
doUpdate = hostClassNamesChanged(mutation.oldValue, mutationTarget.className);
else if (mutationAttrName === LEXICON.s)
doUpdate = mutation.oldValue !== mutationTarget[LEXICON.s].cssText;
else
doUpdate = true;
}
mutatedAttrs.push(mutationAttrName);
});
updateViewportAttrsFromTarget(mutatedAttrs);
if (doUpdate)
_base.update(_strAuto);
}
return doUpdate;
};
_mutationObserverContentCallback = function (mutations) {
var doUpdate = false;
var mutation;
if (_initialized && !_sleeping) {
each(mutations, function () {
mutation = this;
doUpdate = isUnknownMutation(mutation);
return !doUpdate;
});
if (doUpdate) {
now = COMPATIBILITY.now();
sizeAuto = (_heightAutoCache || _widthAutoCache);
action = function () {
if (!_destroyed) {
contentLastUpdate = now;
//if cols, rows or wrap attr was changed
if (_isTextarea)
textareaUpdate();
if (sizeAuto)
update();
else
_base.update(_strAuto);
}
};
clearTimeout(contentTimeout);
if (mutationObserverContentLag <= 0 || now - contentLastUpdate > mutationObserverContentLag || !sizeAuto)
action();
else
contentTimeout = setTimeout(action, mutationObserverContentLag);
}
}
return doUpdate;
}
_mutationObserverHost = new mutationObserver(_mutationObserverHostCallback);
_mutationObserverContent = new mutationObserver(_mutationObserverContentCallback);
}
}
/**
* Connects the MutationObservers if they are supported.
*/
function connectMutationObservers() {
if (_supportMutationObserver && !_mutationObserversConnected) {
_mutationObserverHost.observe(_hostElementNative, {
attributes: true,
attributeOldValue: true,
attributeFilter: _mutationObserverAttrsHost
});
_mutationObserverContent.observe(_isTextarea ? _targetElementNative : _contentElementNative, {
attributes: true,
attributeOldValue: true,
subtree: !_isTextarea,
childList: !_isTextarea,
characterData: !_isTextarea,
attributeFilter: _isTextarea ? _mutationObserverAttrsTextarea : _mutationObserverAttrsHost
});
_mutationObserversConnected = true;
}
}
/**
* Disconnects the MutationObservers if they are supported.
*/
function disconnectMutationObservers() {
if (_supportMutationObserver && _mutationObserversConnected) {
_mutationObserverHost.disconnect();
_mutationObserverContent.disconnect();
_mutationObserversConnected = false;
}
}
//==== Events of elements ====//
/**
* This method gets called every time the host element gets resized. IMPORTANT: Padding changes are detected too!!
* It refreshes the hostResizedEventArgs and the hostSizeResizeCache.
* If there are any size changes, the update method gets called.
*/
function hostOnResized() {
if (!_sleeping) {
var changed;
var hostSize = {
w: _sizeObserverElementNative[LEXICON.sW],
h: _sizeObserverElementNative[LEXICON.sH]
};
changed = checkCache(hostSize, _hostElementSizeChangeDetectedCache);
_hostElementSizeChangeDetectedCache = hostSize;
if (changed)
update({ _hostSizeChanged: true });
}
}
/**
* The mouse enter event of the host element. This event is only needed for the autoHide feature.
*/
function hostOnMouseEnter() {
if (_scrollbarsAutoHideLeave)
refreshScrollbarsAutoHide(true);
}
/**
* The mouse leave event of the host element. This event is only needed for the autoHide feature.
*/
function hostOnMouseLeave() {
if (_scrollbarsAutoHideLeave && !_bodyElement.hasClass(_classNameDragging))
refreshScrollbarsAutoHide(false);
}
/**
* The mouse move event of the host element. This event is only needed for the autoHide "move" feature.
*/
function hostOnMouseMove() {
if (_scrollbarsAutoHideMove) {
refreshScrollbarsAutoHide(true);
clearTimeout(_scrollbarsAutoHideMoveTimeoutId);
_scrollbarsAutoHideMoveTimeoutId = setTimeout(function () {
if (_scrollbarsAutoHideMove && !_destroyed)
refreshScrollbarsAutoHide(false);
}, 100);
}
}
/**
* Prevents text from deselection if attached to the document element on the mousedown event of a DOM element.
* @param event The select start event.
*/
function documentOnSelectStart(event) {
COMPATIBILITY.prvD(event);
return false;
}
/**
* A callback which will be called after a img element has downloaded its src asynchronous.
*/
function imgOnLoad() {
update({ _contentSizeChanged: true });
}
/**
* Adds or removes mouse & touch events of the host element. (for handling auto-hiding of the scrollbars)
* @param destroy Indicates whether the events shall be added or removed.
*/
function setupHostMouseTouchEvents(destroy) {
setupResponsiveEventListener(_hostElement,
_strMouseTouchMoveEvent,
hostOnMouseMove,
(_scrollbarsAutoHideMove ? destroy : true), true);
setupResponsiveEventListener(_hostElement,
[_strMouseTouchEnter, _strMouseTouchLeave],
[hostOnMouseEnter, hostOnMouseLeave],
(_scrollbarsAutoHideMove ? true : destroy), true);
//if the plugin is initialized and the mouse is over the host element, make the scrollbars visible
if (!_initialized && !destroy)
_hostElement.one('mouseover', hostOnMouseEnter);
}
//==== Update Detection ====//
/**
* Measures the min width and min height of the body element and refreshes the related cache.
* @returns {boolean} True if the min width or min height has changed, false otherwise.
*/
function bodyMinSizeChanged() {
var bodyMinSize = {};
if (_isBody && _contentArrangeElement) {
bodyMinSize.w = parseToZeroOrNumber(_contentArrangeElement.css(_strMinMinus + _strWidth));
bodyMinSize.h = parseToZeroOrNumber(_contentArrangeElement.css(_strMinMinus + _strHeight));
bodyMinSize.c = checkCache(bodyMinSize, _bodyMinSizeCache);
bodyMinSize.f = true; //flag for "measured at least once"
}
_bodyMinSizeCache = bodyMinSize;
return !!bodyMinSize.c;
}
/**
* Returns true if the class names really changed (new class without plugin host prefix)
* @param oldCassNames The old ClassName string.
* @param newClassNames The new ClassName string.
* @returns {boolean} True if the class names has really changed, false otherwise.
*/
function hostClassNamesChanged(oldCassNames, newClassNames) {
var currClasses = (newClassNames !== undefined && newClassNames !== null) ? newClassNames.split(_strSpace) : _strEmpty;
var oldClasses = (oldCassNames !== undefined && oldCassNames !== null) ? oldCassNames.split(_strSpace) : _strEmpty;
if (currClasses === _strEmpty && oldClasses === _strEmpty)
return false;
var diff = getArrayDifferences(oldClasses, currClasses);
var changed = false;
var oldClassNames = _oldClassName !== undefined && _oldClassName !== null ? _oldClassName.split(_strSpace) : [_strEmpty];
var currClassNames = _classNameCache !== undefined && _classNameCache !== null ? _classNameCache.split(_strSpace) : [_strEmpty];
//remove none theme from diff list to prevent update
var idx = inArray(_classNameThemeNone, diff);
var curr;
var i;
var v;
var o;
var c;
if (idx > -1)
diff.splice(idx, 1);
for (i = 0; i < diff.length; i++) {
curr = diff[i];
if (curr.indexOf(_classNameHostElement) !== 0) {
o = true;
c = true;
for (v = 0; v < oldClassNames.length; v++) {
if (curr === oldClassNames[v]) {
o = false;
break;
}
}
for (v = 0; v < currClassNames.length; v++) {
if (curr === currClassNames[v]) {
c = false;
break;
}
}
if (o && c) {
changed = true;
break;
}
}
}
return changed;
}
/**
* Returns true if the given mutation is not from a from the plugin generated element. If the target element is a textarea the mutation is always unknown.
* @param mutation The mutation which shall be checked.
* @returns {boolean} True if the mutation is from a unknown element, false otherwise.
*/
function isUnknownMutation(mutation) {
var attributeName = mutation.attributeName;
var mutationTarget = mutation.target;
var mutationType = mutation.type;
var strClosest = 'closest';
if (mutationTarget === _contentElementNative)
return attributeName === null;
if (mutationType === 'attributes' && (attributeName === LEXICON.c || attributeName === LEXICON.s) && !_isTextarea) {
//ignore className changes by the plugin
if (attributeName === LEXICON.c && FRAMEWORK(mutationTarget).hasClass(_classNameHostElement))
return hostClassNamesChanged(mutation.oldValue, mutationTarget.getAttribute(LEXICON.c));
//only do it of browser support it natively
if (typeof mutationTarget[strClosest] != TYPES.f)
return true;
if (mutationTarget[strClosest](_strDot + _classNameResizeObserverElement) !== null ||
mutationTarget[strClosest](_strDot + _classNameScrollbar) !== null ||
mutationTarget[strClosest](_strDot + _classNameScrollbarCorner) !== null)
return false;
}
return true;
}
/**
* Returns true if the content size was changed since the last time this method was called.
* @returns {boolean} True if the content size was changed, false otherwise.
*/
function updateAutoContentSizeChanged() {
if (_sleeping)
return false;
var contentMeasureElement = getContentMeasureElement();
var textareaValueLength = _isTextarea && _widthAutoCache && !_textareaAutoWrappingCache ? _targetElement.val().length : 0;
var setCSS = !_mutationObserversConnected && _widthAutoCache && !_isTextarea;
var css = {};
var float;
var bodyMinSizeC;
var changed;
var contentElementScrollSize;
if (setCSS) {
float = _contentElement.css(_strFloat);
css[_strFloat] = _isRTL ? _strRight : _strLeft;
css[_strWidth] = _strAuto;
_contentElement.css(css);
}
contentElementScrollSize = {
w: contentMeasureElement[LEXICON.sW] + textareaValueLength,
h: contentMeasureElement[LEXICON.sH] + textareaValueLength
};
if (setCSS) {
css[_strFloat] = float;
css[_strWidth] = _strHundredPercent;
_contentElement.css(css);
}
bodyMinSizeC = bodyMinSizeChanged();
changed = checkCache(contentElementScrollSize, _contentElementScrollSizeChangeDetectedCache);
_contentElementScrollSizeChangeDetectedCache = contentElementScrollSize;
return changed || bodyMinSizeC;
}
/**
* Returns true when a attribute which the MutationObserver would observe has changed.
* @returns {boolean} True if one of the attributes which a MutationObserver would observe has changed, false or undefined otherwise.
*/
function meaningfulAttrsChanged() {
if (_sleeping || _mutationObserversConnected)
return;
var elem;
var curr;
var cache;
var changedAttrs = [];
var checks = [
{
_elem: _hostElement,
_attrs: _mutationObserverAttrsHost.concat(':visible')
},
{
_elem: _isTextarea ? _targetElement : undefined,
_attrs: _mutationObserverAttrsTextarea
}
];
each(checks, function (index, check) {
elem = check._elem;
if (elem) {
each(check._attrs, function (index, attr) {
curr = attr.charAt(0) === ':' ? elem.is(attr) : elem.attr(attr);
cache = _updateAutoCache[attr];
if(checkCache(curr, cache)) {
changedAttrs.push(attr);
}
_updateAutoCache[attr] = curr;
});
}
});
updateViewportAttrsFromTarget(changedAttrs);
return changedAttrs[LEXICON.l] > 0;
}
/**
* Checks is a CSS Property of a child element is affecting the scroll size of the content.
* @param propertyName The CSS property name.
* @returns {boolean} True if the property is affecting the content scroll size, false otherwise.
*/
function isSizeAffectingCSSProperty(propertyName) {
if (!_initialized)
return true;
var flexGrow = 'flex-grow';
var flexShrink = 'flex-shrink';
var flexBasis = 'flex-basis';
var affectingPropsX = [
_strWidth,
_strMinMinus + _strWidth,
_strMaxMinus + _strWidth,
_strMarginMinus + _strLeft,
_strMarginMinus + _strRight,
_strLeft,
_strRight,
'font-weight',
'word-spacing',
flexGrow,
flexShrink,
flexBasis
];
var affectingPropsXContentBox = [
_strPaddingMinus + _strLeft,
_strPaddingMinus + _strRight,
_strBorderMinus + _strLeft + _strWidth,
_strBorderMinus + _strRight + _strWidth
];
var affectingPropsY = [
_strHeight,
_strMinMinus + _strHeight,
_strMaxMinus + _strHeight,
_strMarginMinus + _strTop,
_strMarginMinus + _strBottom,
_strTop,
_strBottom,
'line-height',
flexGrow,
flexShrink,
flexBasis
];
var affectingPropsYContentBox = [
_strPaddingMinus + _strTop,
_strPaddingMinus + _strBottom,
_strBorderMinus + _strTop + _strWidth,
_strBorderMinus + _strBottom + _strWidth
];
var _strS = 's';
var _strVS = 'v-s';
var checkX = _overflowBehaviorCache.x === _strS || _overflowBehaviorCache.x === _strVS;
var checkY = _overflowBehaviorCache.y === _strS || _overflowBehaviorCache.y === _strVS;
var sizeIsAffected = false;
var checkPropertyName = function (arr, name) {
for (var i = 0; i < arr[LEXICON.l]; i++) {
if (arr[i] === name)
return true;
}
return false;
};
if (checkY) {
sizeIsAffected = checkPropertyName(affectingPropsY, propertyName);
if (!sizeIsAffected && !_isBorderBox)
sizeIsAffected = checkPropertyName(affectingPropsYContentBox, propertyName);
}
if (checkX && !sizeIsAffected) {
sizeIsAffected = checkPropertyName(affectingPropsX, propertyName);
if (!sizeIsAffected && !_isBorderBox)
sizeIsAffected = checkPropertyName(affectingPropsXContentBox, propertyName);
}
return sizeIsAffected;
}
//==== Update ====//
/**
* Sets the attribute values of the viewport element to the values from the target element.
* The value of a attribute is only set if the attribute is whitelisted.
* @attrs attrs The array of attributes which shall be set or undefined if all whitelisted shall be set.
*/
function updateViewportAttrsFromTarget(attrs) {
attrs = attrs || _viewportAttrsFromTarget;
each(attrs, function (index, attr) {
if (COMPATIBILITY.inA(attr, _viewportAttrsFromTarget) > -1) {
var targetAttr = _targetElement.attr(attr);
if(type(targetAttr) == TYPES.s) {
_viewportElement.attr(attr, targetAttr);
}
else {
_viewportElement.removeAttr(attr);
}
}
});
}
/**
* Updates the variables and size of the textarea element, and manages the scroll on new line or new character.
*/
function textareaUpdate() {
if (!_sleeping) {
var wrapAttrOff = !_textareaAutoWrappingCache;
var minWidth = _viewportSize.w;
var minHeight = _viewportSize.h;
var css = {};
var doMeasure = _widthAutoCache || wrapAttrOff;
var origWidth;
var width;
var origHeight;
var height;
//reset min size
css[_strMinMinus + _strWidth] = _strEmpty;
css[_strMinMinus + _strHeight] = _strEmpty;
//set width auto
css[_strWidth] = _strAuto;
_targetElement.css(css);
//measure width
origWidth = _targetElementNative[LEXICON.oW];
width = doMeasure ? MATH.max(origWidth, _targetElementNative[LEXICON.sW] - 1) : 1;
/*width += (_widthAutoCache ? _marginX + (!_isBorderBox ? wrapAttrOff ? 0 : _paddingX + _borderX : 0) : 0);*/
//set measured width
css[_strWidth] = _widthAutoCache ? _strAuto /*width*/ : _strHundredPercent;
css[_strMinMinus + _strWidth] = _strHundredPercent;
//set height auto
css[_strHeight] = _strAuto;
_targetElement.css(css);
//measure height
origHeight = _targetElementNative[LEXICON.oH];
height = MATH.max(origHeight, _targetElementNative[LEXICON.sH] - 1);
//append correct size values
css[_strWidth] = width;
css[_strHeight] = height;
_textareaCoverElement.css(css);
//apply min width / min height to prevent textarea collapsing
css[_strMinMinus + _strWidth] = minWidth /*+ (!_isBorderBox && _widthAutoCache ? _paddingX + _borderX : 0)*/;
css[_strMinMinus + _strHeight] = minHeight /*+ (!_isBorderBox && _heightAutoCache ? _paddingY + _borderY : 0)*/;
_targetElement.css(css);
return {
_originalWidth: origWidth,
_originalHeight: origHeight,
_dynamicWidth: width,
_dynamicHeight: height
};
}
}
/**
* Updates the plugin and DOM to the current options.
* This method should only be called if a update is 100% required.
* @param updateHints A objects which contains hints for this update:
* {
* _hostSizeChanged : boolean,
* _contentSizeChanged : boolean,
* _force : boolean, == preventSwallowing
* _changedOptions : { }, == preventSwallowing && preventSleep
* }
*/
function update(updateHints) {
clearTimeout(_swallowedUpdateTimeout);
updateHints = updateHints || {};
_swallowedUpdateHints._hostSizeChanged |= updateHints._hostSizeChanged;
_swallowedUpdateHints._contentSizeChanged |= updateHints._contentSizeChanged;
_swallowedUpdateHints._force |= updateHints._force;
var now = COMPATIBILITY.now();
var hostSizeChanged = !!_swallowedUpdateHints._hostSizeChanged;
var contentSizeChanged = !!_swallowedUpdateHints._contentSizeChanged;
var force = !!_swallowedUpdateHints._force;
var changedOptions = updateHints._changedOptions;
var swallow = _swallowUpdateLag > 0 && _initialized && !_destroyed && !force && !changedOptions && (now - _lastUpdateTime) < _swallowUpdateLag && (!_heightAutoCache && !_widthAutoCache);
var displayIsHidden;
if (swallow)
_swallowedUpdateTimeout = setTimeout(update, _swallowUpdateLag);
//abort update due to:
//destroyed
//swallowing
//sleeping
//host is hidden or has false display
if (_destroyed || swallow || (_sleeping && !changedOptions) || (_initialized && !force && (displayIsHidden = _hostElement.is(':hidden'))) || _hostElement.css('display') === 'inline')
return;
_lastUpdateTime = now;
_swallowedUpdateHints = {};
//if scrollbar styling is possible and native scrollbars aren't overlaid the scrollbar styling will be applied which hides the native scrollbars completely.
if (_nativeScrollbarStyling && !(_nativeScrollbarIsOverlaid.x && _nativeScrollbarIsOverlaid.y)) {
//native scrollbars are hidden, so change the values to zero
_nativeScrollbarSize.x = 0;
_nativeScrollbarSize.y = 0;
}
else {
//refresh native scrollbar size (in case of zoom)
_nativeScrollbarSize = extendDeep({}, globals.nativeScrollbarSize);
}
// Scrollbar padding is needed for firefox, because firefox hides scrollbar automatically if the size of the div is too small.
// The calculation: [scrollbar size +3 *3]
// (+3 because of possible decoration e.g. borders, margins etc., but only if native scrollbar is NOT a overlaid scrollbar)
// (*3 because (1)increase / (2)decrease -button and (3)resize handle)
_nativeScrollbarMinSize = {
x: (_nativeScrollbarSize.x + (_nativeScrollbarIsOverlaid.x ? 0 : 3)) * 3,
y: (_nativeScrollbarSize.y + (_nativeScrollbarIsOverlaid.y ? 0 : 3)) * 3
};
//changedOptions = changedOptions || { };
//freezeResizeObserver(_sizeObserverElement, true);
//freezeResizeObserver(_sizeAutoObserverElement, true);
var checkCacheAutoForce = function () {
return checkCache.apply(this, [].slice.call(arguments).concat([force]));
};
//save current scroll offset
var currScroll = {
x: _viewportElement[_strScrollLeft](),
y: _viewportElement[_strScrollTop]()
};
var currentPreparedOptionsScrollbars = _currentPreparedOptions.scrollbars;
var currentPreparedOptionsTextarea = _currentPreparedOptions.textarea;
//scrollbars visibility:
var scrollbarsVisibility = currentPreparedOptionsScrollbars.visibility;
var scrollbarsVisibilityChanged = checkCacheAutoForce(scrollbarsVisibility, _scrollbarsVisibilityCache);
//scrollbars autoHide:
var scrollbarsAutoHide = currentPreparedOptionsScrollbars.autoHide;
var scrollbarsAutoHideChanged = checkCacheAutoForce(scrollbarsAutoHide, _scrollbarsAutoHideCache);
//scrollbars click scrolling
var scrollbarsClickScrolling = currentPreparedOptionsScrollbars.clickScrolling;
var scrollbarsClickScrollingChanged = checkCacheAutoForce(scrollbarsClickScrolling, _scrollbarsClickScrollingCache);
//scrollbars drag scrolling
var scrollbarsDragScrolling = currentPreparedOptionsScrollbars.dragScrolling;
var scrollbarsDragScrollingChanged = checkCacheAutoForce(scrollbarsDragScrolling, _scrollbarsDragScrollingCache);
//className
var className = _currentPreparedOptions.className;
var classNameChanged = checkCacheAutoForce(className, _classNameCache);
//resize
var resize = _currentPreparedOptions.resize;
var resizeChanged = checkCacheAutoForce(resize, _resizeCache) && !_isBody; //body can't be resized since the window itself acts as resize possibility.
//paddingAbsolute
var paddingAbsolute = _currentPreparedOptions.paddingAbsolute;
var paddingAbsoluteChanged = checkCacheAutoForce(paddingAbsolute, _paddingAbsoluteCache);
//clipAlways
var clipAlways = _currentPreparedOptions.clipAlways;
var clipAlwaysChanged = checkCacheAutoForce(clipAlways, _clipAlwaysCache);
//sizeAutoCapable
var sizeAutoCapable = _currentPreparedOptions.sizeAutoCapable && !_isBody; //body can never be size auto, because it shall be always as big as the viewport.
var sizeAutoCapableChanged = checkCacheAutoForce(sizeAutoCapable, _sizeAutoCapableCache);
//showNativeScrollbars
var ignoreOverlayScrollbarHiding = _currentPreparedOptions.nativeScrollbarsOverlaid.showNativeScrollbars;
var ignoreOverlayScrollbarHidingChanged = checkCacheAutoForce(ignoreOverlayScrollbarHiding, _ignoreOverlayScrollbarHidingCache);
//autoUpdate
var autoUpdate = _currentPreparedOptions.autoUpdate;
var autoUpdateChanged = checkCacheAutoForce(autoUpdate, _autoUpdateCache);
//overflowBehavior
var overflowBehavior = _currentPreparedOptions.overflowBehavior;
var overflowBehaviorChanged = checkCacheAutoForce(overflowBehavior, _overflowBehaviorCache, force);
//dynWidth:
var textareaDynWidth = currentPreparedOptionsTextarea.dynWidth;
var textareaDynWidthChanged = checkCacheAutoForce(_textareaDynWidthCache, textareaDynWidth);
//dynHeight:
var textareaDynHeight = currentPreparedOptionsTextarea.dynHeight;
var textareaDynHeightChanged = checkCacheAutoForce(_textareaDynHeightCache, textareaDynHeight);
//scrollbars visibility
_scrollbarsAutoHideNever = scrollbarsAutoHide === 'n';
_scrollbarsAutoHideScroll = scrollbarsAutoHide === 's';
_scrollbarsAutoHideMove = scrollbarsAutoHide === 'm';
_scrollbarsAutoHideLeave = scrollbarsAutoHide === 'l';
//scrollbars autoHideDelay
_scrollbarsAutoHideDelay = currentPreparedOptionsScrollbars.autoHideDelay;
//old className
_oldClassName = _classNameCache;
//resize
_resizeNone = resize === 'n';
_resizeBoth = resize === 'b';
_resizeHorizontal = resize === 'h';
_resizeVertical = resize === 'v';
//normalizeRTL
_normalizeRTLCache = _currentPreparedOptions.normalizeRTL;
//ignore overlay scrollbar hiding
ignoreOverlayScrollbarHiding = ignoreOverlayScrollbarHiding && (_nativeScrollbarIsOverlaid.x && _nativeScrollbarIsOverlaid.y);
//refresh options cache
_scrollbarsVisibilityCache = scrollbarsVisibility;
_scrollbarsAutoHideCache = scrollbarsAutoHide;
_scrollbarsClickScrollingCache = scrollbarsClickScrolling;
_scrollbarsDragScrollingCache = scrollbarsDragScrolling;
_classNameCache = className;
_resizeCache = resize;
_paddingAbsoluteCache = paddingAbsolute;
_clipAlwaysCache = clipAlways;
_sizeAutoCapableCache = sizeAutoCapable;
_ignoreOverlayScrollbarHidingCache = ignoreOverlayScrollbarHiding;
_autoUpdateCache = autoUpdate;
_overflowBehaviorCache = extendDeep({}, overflowBehavior);
_textareaDynWidthCache = textareaDynWidth;
_textareaDynHeightCache = textareaDynHeight;
_hasOverflowCache = _hasOverflowCache || { x: false, y: false };
//set correct class name to the host element
if (classNameChanged) {
removeClass(_hostElement, _oldClassName + _strSpace + _classNameThemeNone);
addClass(_hostElement, className !== undefined && className !== null && className.length > 0 ? className : _classNameThemeNone);
}
//set correct auto Update
if (autoUpdateChanged) {
if (autoUpdate === true) {
disconnectMutationObservers();
autoUpdateLoop.add(_base);
}
else if (autoUpdate === null) {
if (_autoUpdateRecommended) {
disconnectMutationObservers();
autoUpdateLoop.add(_base);
}
else {
autoUpdateLoop.remove(_base);
connectMutationObservers();
}
}
else {
autoUpdateLoop.remove(_base);
connectMutationObservers();
}
}
//activate or deactivate size auto capability
if (sizeAutoCapableChanged) {
if (sizeAutoCapable) {
if (!_contentGlueElement) {
_contentGlueElement = FRAMEWORK(generateDiv(_classNameContentGlueElement));
_paddingElement.before(_contentGlueElement);
}
else {
_contentGlueElement.show();
}
if (_sizeAutoObserverAdded) {
_sizeAutoObserverElement.show();
}
else {
_sizeAutoObserverElement = FRAMEWORK(generateDiv(_classNameSizeAutoObserverElement));
_sizeAutoObserverElementNative = _sizeAutoObserverElement[0];
_contentGlueElement.before(_sizeAutoObserverElement);
var oldSize = { w: -1, h: -1 };
setupResizeObserver(_sizeAutoObserverElement, function () {
var newSize = {
w: _sizeAutoObserverElementNative[LEXICON.oW],
h: _sizeAutoObserverElementNative[LEXICON.oH]
};
if (checkCache(newSize, oldSize)) {
if (_initialized && (_heightAutoCache && newSize.h > 0) || (_widthAutoCache && newSize.w > 0)) {
update();
}
else if (_initialized && (!_heightAutoCache && newSize.h === 0) || (!_widthAutoCache && newSize.w === 0)) {
update();
}
}
oldSize = newSize;
});
_sizeAutoObserverAdded = true;
//fix heightAuto detector bug if height is fixed but contentHeight is 0.
//the probability this bug will ever happen is very very low, thats why its ok if we use calc which isn't supported in IE8.
if (_cssCalc !== null)
_sizeAutoObserverElement.css(_strHeight, _cssCalc + '(100% + 1px)');
}
}
else {
if (_sizeAutoObserverAdded)
_sizeAutoObserverElement.hide();
if (_contentGlueElement)
_contentGlueElement.hide();
}
}
//if force, update all resizeObservers too
if (force) {
_sizeObserverElement.find('*').trigger(_strScroll);
if (_sizeAutoObserverAdded)
_sizeAutoObserverElement.find('*').trigger(_strScroll);
}
//display hidden:
displayIsHidden = displayIsHidden === undefined ? _hostElement.is(':hidden') : displayIsHidden;
var displayIsHiddenChanged = checkCacheAutoForce(displayIsHidden, _displayIsHiddenCache);
//textarea AutoWrapping:
var textareaAutoWrapping = _isTextarea ? _targetElement.attr('wrap') !== 'off' : false;
var textareaAutoWrappingChanged = checkCacheAutoForce(textareaAutoWrapping, _textareaAutoWrappingCache);
//detect direction:
var cssDirection = _hostElement.css('direction');
var cssDirectionChanged = checkCacheAutoForce(cssDirection, _cssDirectionCache);
//detect box-sizing:
var boxSizing = _hostElement.css('box-sizing');
var boxSizingChanged = checkCacheAutoForce(boxSizing, _cssBoxSizingCache);
//detect padding:
var padding = {
c: force,
t: parseToZeroOrNumber(_hostElement.css(_strPaddingMinus + _strTop)),
r: parseToZeroOrNumber(_hostElement.css(_strPaddingMinus + _strRight)),
b: parseToZeroOrNumber(_hostElement.css(_strPaddingMinus + _strBottom)),
l: parseToZeroOrNumber(_hostElement.css(_strPaddingMinus + _strLeft))
};
//width + height auto detecting var:
var sizeAutoObserverElementBCRect;
//exception occurs in IE8 sometimes (unknown exception)
try {
sizeAutoObserverElementBCRect = _sizeAutoObserverAdded ? _sizeAutoObserverElementNative[LEXICON.bCR]() : null;
} catch (ex) {
return;
}
_isRTL = cssDirection === 'rtl';
_isBorderBox = (boxSizing === 'border-box');
var isRTLLeft = _isRTL ? _strLeft : _strRight;
var isRTLRight = _isRTL ? _strRight : _strLeft;
//detect width auto:
var widthAutoResizeDetection = false;
var widthAutoObserverDetection = (_sizeAutoObserverAdded && (_hostElement.css(_strFloat) !== 'none' /*|| _isTextarea */)) ? (MATH.round(sizeAutoObserverElementBCRect.right - sizeAutoObserverElementBCRect.left) === 0) && (!paddingAbsolute ? (_hostElementNative[LEXICON.cW] - _paddingX) > 0 : true) : false;
if (sizeAutoCapable && !widthAutoObserverDetection) {
var tmpCurrHostWidth = _hostElementNative[LEXICON.oW];
var tmpCurrContentGlueWidth = _contentGlueElement.css(_strWidth);
_contentGlueElement.css(_strWidth, _strAuto);
var tmpNewHostWidth = _hostElementNative[LEXICON.oW];
_contentGlueElement.css(_strWidth, tmpCurrContentGlueWidth);
widthAutoResizeDetection = tmpCurrHostWidth !== tmpNewHostWidth;
if (!widthAutoResizeDetection) {
_contentGlueElement.css(_strWidth, tmpCurrHostWidth + 1);
tmpNewHostWidth = _hostElementNative[LEXICON.oW];
_contentGlueElement.css(_strWidth, tmpCurrContentGlueWidth);
widthAutoResizeDetection = tmpCurrHostWidth !== tmpNewHostWidth;
}
}
var widthAuto = (widthAutoObserverDetection || widthAutoResizeDetection) && sizeAutoCapable && !displayIsHidden;
var widthAutoChanged = checkCacheAutoForce(widthAuto, _widthAutoCache);
var wasWidthAuto = !widthAuto && _widthAutoCache;
//detect height auto:
var heightAuto = _sizeAutoObserverAdded && sizeAutoCapable && !displayIsHidden ? (MATH.round(sizeAutoObserverElementBCRect.bottom - sizeAutoObserverElementBCRect.top) === 0) /* && (!paddingAbsolute && (_msieVersion > 9 || !_msieVersion) ? true : true) */ : false;
var heightAutoChanged = checkCacheAutoForce(heightAuto, _heightAutoCache);
var wasHeightAuto = !heightAuto && _heightAutoCache;
//detect border:
//we need the border only if border box and auto size
var strMinusWidth = '-' + _strWidth;
var updateBorderX = (widthAuto && _isBorderBox) || !_isBorderBox;
var updateBorderY = (heightAuto && _isBorderBox) || !_isBorderBox;
var border = {
c: force,
t: updateBorderY ? parseToZeroOrNumber(_hostElement.css(_strBorderMinus + _strTop + strMinusWidth), true) : 0,
r: updateBorderX ? parseToZeroOrNumber(_hostElement.css(_strBorderMinus + _strRight + strMinusWidth), true) : 0,
b: updateBorderY ? parseToZeroOrNumber(_hostElement.css(_strBorderMinus + _strBottom + strMinusWidth), true) : 0,
l: updateBorderX ? parseToZeroOrNumber(_hostElement.css(_strBorderMinus + _strLeft + strMinusWidth), true) : 0
};
//detect margin:
var margin = {
c: force,
t: parseToZeroOrNumber(_hostElement.css(_strMarginMinus + _strTop)),
r: parseToZeroOrNumber(_hostElement.css(_strMarginMinus + _strRight)),
b: parseToZeroOrNumber(_hostElement.css(_strMarginMinus + _strBottom)),
l: parseToZeroOrNumber(_hostElement.css(_strMarginMinus + _strLeft))
};
//detect css max width & height:
var cssMaxValue = {
h: String(_hostElement.css(_strMaxMinus + _strHeight)),
w: String(_hostElement.css(_strMaxMinus + _strWidth))
};
//vars to apply correct css
var contentElementCSS = {};
var contentGlueElementCSS = {};
//funcs
var getHostSize = function () {
//has to be clientSize because offsetSize respect borders
return {
w: _hostElementNative[LEXICON.cW],
h: _hostElementNative[LEXICON.cH]
};
};
var getViewportSize = function () {
//viewport size is padding container because it never has padding, margin and a border
//determine zoom rounding error -> sometimes scrollWidth/Height is smaller than clientWidth/Height
//if this happens add the difference to the viewportSize to compensate the rounding error
return {
w: _paddingElementNative[LEXICON.oW] + MATH.max(0, _contentElementNative[LEXICON.cW] - _contentElementNative[LEXICON.sW]),
h: _paddingElementNative[LEXICON.oH] + MATH.max(0, _contentElementNative[LEXICON.cH] - _contentElementNative[LEXICON.sH])
};
};
//set info for padding
var paddingAbsoluteX = _paddingX = padding.l + padding.r;
var paddingAbsoluteY = _paddingY = padding.t + padding.b;
paddingAbsoluteX *= paddingAbsolute ? 1 : 0;
paddingAbsoluteY *= paddingAbsolute ? 1 : 0;
padding.c = checkCacheAutoForce(padding, _cssPaddingCache);
//set info for border
_borderX = border.l + border.r;
_borderY = border.t + border.b;
border.c = checkCacheAutoForce(border, _cssBorderCache);
//set info for margin
_marginX = margin.l + margin.r;
_marginY = margin.t + margin.b;
margin.c = checkCacheAutoForce(margin, _cssMarginCache);
//set info for css max value
cssMaxValue.ih = parseToZeroOrNumber(cssMaxValue.h); //ih = integer height
cssMaxValue.iw = parseToZeroOrNumber(cssMaxValue.w); //iw = integer width
cssMaxValue.ch = cssMaxValue.h.indexOf('px') > -1; //ch = correct height
cssMaxValue.cw = cssMaxValue.w.indexOf('px') > -1; //cw = correct width
cssMaxValue.c = checkCacheAutoForce(cssMaxValue, _cssMaxValueCache);
//refresh cache
_displayIsHiddenCache = displayIsHidden;
_textareaAutoWrappingCache = textareaAutoWrapping;
_cssDirectionCache = cssDirection;
_cssBoxSizingCache = boxSizing;
_widthAutoCache = widthAuto;
_heightAutoCache = heightAuto;
_cssPaddingCache = padding;
_cssBorderCache = border;
_cssMarginCache = margin;
_cssMaxValueCache = cssMaxValue;
//IEFix direction changed
if (cssDirectionChanged && _sizeAutoObserverAdded)
_sizeAutoObserverElement.css(_strFloat, isRTLRight);
//apply padding:
if (padding.c || cssDirectionChanged || paddingAbsoluteChanged || widthAutoChanged || heightAutoChanged || boxSizingChanged || sizeAutoCapableChanged) {
var paddingElementCSS = {};
var textareaCSS = {};
setTopRightBottomLeft(contentGlueElementCSS, _strMarginMinus, [-padding.t, -padding.r, -padding.b, -padding.l]);
if (paddingAbsolute) {
setTopRightBottomLeft(paddingElementCSS, _strEmpty, [padding.t, padding.r, padding.b, padding.l]);
if (_isTextarea)
setTopRightBottomLeft(textareaCSS, _strPaddingMinus);
else
setTopRightBottomLeft(contentElementCSS, _strPaddingMinus);
}
else {
setTopRightBottomLeft(paddingElementCSS, _strEmpty);
if (_isTextarea)
setTopRightBottomLeft(textareaCSS, _strPaddingMinus, [padding.t, padding.r, padding.b, padding.l]);
else
setTopRightBottomLeft(contentElementCSS, _strPaddingMinus, [padding.t, padding.r, padding.b, padding.l]);
}
_paddingElement.css(paddingElementCSS);
_targetElement.css(textareaCSS);
}
//viewport size is padding container because it never has padding, margin and a border.
_viewportSize = getViewportSize();
//update Textarea
var textareaSize = _isTextarea ? textareaUpdate() : false;
var textareaSizeChanged = _isTextarea && checkCacheAutoForce(textareaSize, _textareaSizeCache);
var textareaDynOrigSize = _isTextarea && textareaSize ? {
w: textareaDynWidth ? textareaSize._dynamicWidth : textareaSize._originalWidth,
h: textareaDynHeight ? textareaSize._dynamicHeight : textareaSize._originalHeight
} : {};
_textareaSizeCache = textareaSize;
//fix height auto / width auto in cooperation with current padding & boxSizing behavior:
if (heightAuto && (heightAutoChanged || paddingAbsoluteChanged || boxSizingChanged || cssMaxValue.c || padding.c || border.c)) {
/*
if (cssMaxValue.ch)
contentElementCSS[_strMaxMinus + _strHeight] =
(cssMaxValue.ch ? (cssMaxValue.ih - paddingAbsoluteY + (_isBorderBox ? -_borderY : _paddingY))
: _strEmpty);
*/
contentElementCSS[_strHeight] = _strAuto;
}
else if (heightAutoChanged || paddingAbsoluteChanged) {
contentElementCSS[_strMaxMinus + _strHeight] = _strEmpty;
contentElementCSS[_strHeight] = _strHundredPercent;
}
if (widthAuto && (widthAutoChanged || paddingAbsoluteChanged || boxSizingChanged || cssMaxValue.c || padding.c || border.c || cssDirectionChanged)) {
/*
if (cssMaxValue.cw)
contentElementCSS[_strMaxMinus + _strWidth] =
(cssMaxValue.cw ? (cssMaxValue.iw - paddingAbsoluteX + (_isBorderBox ? -_borderX : _paddingX)) +
(_nativeScrollbarIsOverlaid.y ? _overlayScrollbarDummySize.y : 0)
: _strEmpty);
*/
contentElementCSS[_strWidth] = _strAuto;
contentGlueElementCSS[_strMaxMinus + _strWidth] = _strHundredPercent; //IE Fix
}
else if (widthAutoChanged || paddingAbsoluteChanged) {
contentElementCSS[_strMaxMinus + _strWidth] = _strEmpty;
contentElementCSS[_strWidth] = _strHundredPercent;
contentElementCSS[_strFloat] = _strEmpty;
contentGlueElementCSS[_strMaxMinus + _strWidth] = _strEmpty; //IE Fix
}
if (widthAuto) {
if (!cssMaxValue.cw)
contentElementCSS[_strMaxMinus + _strWidth] = _strEmpty;
//textareaDynOrigSize.w || _strAuto :: doesnt works because applied margin will shift width
contentGlueElementCSS[_strWidth] = _strAuto;
contentElementCSS[_strWidth] = _strAuto;
contentElementCSS[_strFloat] = isRTLRight;
}
else {
contentGlueElementCSS[_strWidth] = _strEmpty;
}
if (heightAuto) {
if (!cssMaxValue.ch)
contentElementCSS[_strMaxMinus + _strHeight] = _strEmpty;
//textareaDynOrigSize.h || _contentElementNative[LEXICON.cH] :: use for anti scroll jumping
contentGlueElementCSS[_strHeight] = textareaDynOrigSize.h || _contentElementNative[LEXICON.cH];
}
else {
contentGlueElementCSS[_strHeight] = _strEmpty;
}
if (sizeAutoCapable)
_contentGlueElement.css(contentGlueElementCSS);
_contentElement.css(contentElementCSS);
//CHECKPOINT HERE ~
contentElementCSS = {};
contentGlueElementCSS = {};
//if [content(host) client / scroll size, or target element direction, or content(host) max-sizes] changed, or force is true
if (hostSizeChanged || contentSizeChanged || textareaSizeChanged || cssDirectionChanged || boxSizingChanged || paddingAbsoluteChanged || widthAutoChanged || widthAuto || heightAutoChanged || heightAuto || cssMaxValue.c || ignoreOverlayScrollbarHidingChanged || overflowBehaviorChanged || clipAlwaysChanged || resizeChanged || scrollbarsVisibilityChanged || scrollbarsAutoHideChanged || scrollbarsDragScrollingChanged || scrollbarsClickScrollingChanged || textareaDynWidthChanged || textareaDynHeightChanged || textareaAutoWrappingChanged) {
var strOverflow = 'overflow';
var strOverflowX = strOverflow + '-x';
var strOverflowY = strOverflow + '-y';
var strHidden = 'hidden';
var strVisible = 'visible';
//Reset the viewport (very important for natively overlaid scrollbars and zoom change
//don't change the overflow prop as it is very expensive and affects performance !A LOT!
if(!_nativeScrollbarStyling) {
var viewportElementResetCSS = {};
var resetXTmp = _hasOverflowCache.y && _hideOverflowCache.ys && !ignoreOverlayScrollbarHiding ? (_nativeScrollbarIsOverlaid.y ? _viewportElement.css(isRTLLeft) : -_nativeScrollbarSize.y) : 0;
var resetBottomTmp = _hasOverflowCache.x && _hideOverflowCache.xs && !ignoreOverlayScrollbarHiding ? (_nativeScrollbarIsOverlaid.x ? _viewportElement.css(_strBottom) : -_nativeScrollbarSize.x) : 0;
setTopRightBottomLeft(viewportElementResetCSS, _strEmpty);
_viewportElement.css(viewportElementResetCSS);
}
//measure several sizes:
var contentMeasureElement = getContentMeasureElement();
//in Firefox content element has to have overflow hidden, else element margins aren't calculated properly, this element prevents this bug, but only if scrollbars aren't overlaid
var contentSize = {
//use clientSize because natively overlaidScrollbars add borders
w: textareaDynOrigSize.w || contentMeasureElement[LEXICON.cW],
h: textareaDynOrigSize.h || contentMeasureElement[LEXICON.cH]
};
var scrollSize = {
w: contentMeasureElement[LEXICON.sW],
h: contentMeasureElement[LEXICON.sH]
};
//apply the correct viewport style and measure viewport size
if(!_nativeScrollbarStyling) {
viewportElementResetCSS[_strBottom] = wasHeightAuto ? _strEmpty : resetBottomTmp;
viewportElementResetCSS[isRTLLeft] = wasWidthAuto ? _strEmpty : resetXTmp;
_viewportElement.css(viewportElementResetCSS);
}
_viewportSize = getViewportSize();
//measure and correct several sizes
var hostSize = getHostSize();
var contentGlueSize = {
//client/scrollSize + AbsolutePadding -> because padding is only applied to the paddingElement if its absolute, so you have to add it manually
//hostSize is clientSize -> so padding should be added manually, right? FALSE! Because content glue is inside hostElement, so we don't have to worry about padding
w: MATH.max((widthAuto ? contentSize.w : scrollSize.w) + paddingAbsoluteX, hostSize.w),
h: MATH.max((heightAuto ? contentSize.h : scrollSize.h) + paddingAbsoluteY, hostSize.h)
};
contentGlueSize.c = checkCacheAutoForce(contentGlueSize, _contentGlueSizeCache);
_contentGlueSizeCache = contentGlueSize;
//apply correct contentGlue size
if (sizeAutoCapable) {
//size contentGlue correctly to make sure the element has correct size if the sizing switches to auto
if (contentGlueSize.c || (heightAuto || widthAuto)) {
contentGlueElementCSS[_strWidth] = contentGlueSize.w;
contentGlueElementCSS[_strHeight] = contentGlueSize.h;
//textarea-sizes are already calculated correctly at this point
if (!_isTextarea) {
contentSize = {
//use clientSize because natively overlaidScrollbars add borders
w: contentMeasureElement[LEXICON.cW],
h: contentMeasureElement[LEXICON.cH]
};
}
}
var textareaCoverCSS = {};
var setContentGlueElementCSSfunction = function (horizontal) {
var scrollbarVars = getScrollbarVars(horizontal);
var wh = scrollbarVars._w_h;
var strWH = scrollbarVars._width_height;
var autoSize = horizontal ? widthAuto : heightAuto;
var borderSize = horizontal ? _borderX : _borderY;
var paddingSize = horizontal ? _paddingX : _paddingY;
var marginSize = horizontal ? _marginX : _marginY;
var maxSize = contentGlueElementCSS[strWH] + (_isBorderBox ? borderSize : -paddingSize);
//make contentGlue size -1 if element is not auto sized, to make sure that a resize event happens when the element shrinks
if (!autoSize || (!autoSize && border.c))
contentGlueElementCSS[strWH] = hostSize[wh] - (_isBorderBox ? 0 : paddingSize + borderSize) - 1 - marginSize;
//if size is auto and host is same size as max size, make content glue size +1 to make sure size changes will be detected
if (autoSize && cssMaxValue['c' + wh] && cssMaxValue['i' + wh] === maxSize)
contentGlueElementCSS[strWH] = maxSize + (_isBorderBox ? 0 : paddingSize) + 1;
//if size is auto and host is smaller than size as min size, make content glue size -1 to make sure size changes will be detected (this is only needed if padding is 0)
if (autoSize && (contentSize[wh] < _viewportSize[wh]) && (horizontal && _isTextarea ? !textareaAutoWrapping : true)) {
if (_isTextarea)
textareaCoverCSS[strWH] = parseToZeroOrNumber(_textareaCoverElement.css(strWH)) - 1;
contentGlueElementCSS[strWH] -= 1;
}
//make sure content glue size is at least 1
if (contentSize[wh] > 0)
contentGlueElementCSS[strWH] = MATH.max(1, contentGlueElementCSS[strWH]);
};
setContentGlueElementCSSfunction(true);
setContentGlueElementCSSfunction(false);
if (_isTextarea)
_textareaCoverElement.css(textareaCoverCSS);
_contentGlueElement.css(contentGlueElementCSS);
}
if (widthAuto)
contentElementCSS[_strWidth] = _strHundredPercent;
if (widthAuto && !_isBorderBox && !_mutationObserversConnected)
contentElementCSS[_strFloat] = 'none';
//apply and reset content style
_contentElement.css(contentElementCSS);
contentElementCSS = {};
//measure again, but this time all correct sizes:
var contentScrollSize = {
w: contentMeasureElement[LEXICON.sW],
h: contentMeasureElement[LEXICON.sH],
};
contentScrollSize.c = contentSizeChanged = checkCacheAutoForce(contentScrollSize, _contentScrollSizeCache);
_contentScrollSizeCache = contentScrollSize;
//refresh viewport size after correct measuring
_viewportSize = getViewportSize();
hostSize = getHostSize();
hostSizeChanged = checkCacheAutoForce(hostSize, _hostSizeCache);
_hostSizeCache = hostSize;
var hideOverflowForceTextarea = _isTextarea && (_viewportSize.w === 0 || _viewportSize.h === 0);
var previousOverflowAmount = _overflowAmountCache;
var overflowBehaviorIsVS = {};
var overflowBehaviorIsVH = {};
var overflowBehaviorIsS = {};
var overflowAmount = {};
var hasOverflow = {};
var hideOverflow = {};
var canScroll = {};
var viewportRect = _paddingElementNative[LEXICON.bCR]();
var setOverflowVariables = function (horizontal) {
var scrollbarVars = getScrollbarVars(horizontal);
var scrollbarVarsInverted = getScrollbarVars(!horizontal);
var xyI = scrollbarVarsInverted._x_y;
var xy = scrollbarVars._x_y;
var wh = scrollbarVars._w_h;
var widthHeight = scrollbarVars._width_height;
var scrollMax = _strScroll + scrollbarVars._Left_Top + 'Max';
var fractionalOverflowAmount = viewportRect[widthHeight] ? MATH.abs(viewportRect[widthHeight] - _viewportSize[wh]) : 0;
var checkFractionalOverflowAmount = previousOverflowAmount && previousOverflowAmount[xy] > 0 && _viewportElementNative[scrollMax] === 0;
overflowBehaviorIsVS[xy] = overflowBehavior[xy] === 'v-s';
overflowBehaviorIsVH[xy] = overflowBehavior[xy] === 'v-h';
overflowBehaviorIsS[xy] = overflowBehavior[xy] === 's';
overflowAmount[xy] = MATH.max(0, MATH.round((contentScrollSize[wh] - _viewportSize[wh]) * 100) / 100);
overflowAmount[xy] *= (hideOverflowForceTextarea || (checkFractionalOverflowAmount && fractionalOverflowAmount > 0 && fractionalOverflowAmount < 1)) ? 0 : 1;
hasOverflow[xy] = overflowAmount[xy] > 0;
//hideOverflow:
//x || y : true === overflow is hidden by "overflow: scroll" OR "overflow: hidden"
//xs || ys : true === overflow is hidden by "overflow: scroll"
hideOverflow[xy] = overflowBehaviorIsVS[xy] || overflowBehaviorIsVH[xy] ? (hasOverflow[xyI] && !overflowBehaviorIsVS[xyI] && !overflowBehaviorIsVH[xyI]) : hasOverflow[xy];
hideOverflow[xy + 's'] = hideOverflow[xy] ? (overflowBehaviorIsS[xy] || overflowBehaviorIsVS[xy]) : false;
canScroll[xy] = hasOverflow[xy] && hideOverflow[xy + 's'];
};
setOverflowVariables(true);
setOverflowVariables(false);
overflowAmount.c = checkCacheAutoForce(overflowAmount, _overflowAmountCache);
_overflowAmountCache = overflowAmount;
hasOverflow.c = checkCacheAutoForce(hasOverflow, _hasOverflowCache);
_hasOverflowCache = hasOverflow;
hideOverflow.c = checkCacheAutoForce(hideOverflow, _hideOverflowCache);
_hideOverflowCache = hideOverflow;
//if native scrollbar is overlay at x OR y axis, prepare DOM
if (_nativeScrollbarIsOverlaid.x || _nativeScrollbarIsOverlaid.y) {
var borderDesign = 'px solid transparent';
var contentArrangeElementCSS = {};
var arrangeContent = {};
var arrangeChanged = force;
var setContentElementCSS;
if (hasOverflow.x || hasOverflow.y) {
arrangeContent.w = _nativeScrollbarIsOverlaid.y && hasOverflow.y ? contentScrollSize.w + _overlayScrollbarDummySize.y : _strEmpty;
arrangeContent.h = _nativeScrollbarIsOverlaid.x && hasOverflow.x ? contentScrollSize.h + _overlayScrollbarDummySize.x : _strEmpty;
arrangeChanged = checkCacheAutoForce(arrangeContent, _arrangeContentSizeCache);
_arrangeContentSizeCache = arrangeContent;
}
if (hasOverflow.c || hideOverflow.c || contentScrollSize.c || cssDirectionChanged || widthAutoChanged || heightAutoChanged || widthAuto || heightAuto || ignoreOverlayScrollbarHidingChanged) {
contentElementCSS[_strMarginMinus + isRTLRight] = contentElementCSS[_strBorderMinus + isRTLRight] = _strEmpty;
setContentElementCSS = function (horizontal) {
var scrollbarVars = getScrollbarVars(horizontal);
var scrollbarVarsInverted = getScrollbarVars(!horizontal);
var xy = scrollbarVars._x_y;
var strDirection = horizontal ? _strBottom : isRTLLeft;
var invertedAutoSize = horizontal ? heightAuto : widthAuto;
if (_nativeScrollbarIsOverlaid[xy] && hasOverflow[xy] && hideOverflow[xy + 's']) {
contentElementCSS[_strMarginMinus + strDirection] = invertedAutoSize ? (ignoreOverlayScrollbarHiding ? _strEmpty : _overlayScrollbarDummySize[xy]) : _strEmpty;
contentElementCSS[_strBorderMinus + strDirection] = ((horizontal ? !invertedAutoSize : true) && !ignoreOverlayScrollbarHiding) ? (_overlayScrollbarDummySize[xy] + borderDesign) : _strEmpty;
}
else {
arrangeContent[scrollbarVarsInverted._w_h] =
contentElementCSS[_strMarginMinus + strDirection] =
contentElementCSS[_strBorderMinus + strDirection] = _strEmpty;
arrangeChanged = true;
}
};
if (_nativeScrollbarStyling) {
if (ignoreOverlayScrollbarHiding)
removeClass(_viewportElement, _classNameViewportNativeScrollbarsInvisible);
else
addClass(_viewportElement, _classNameViewportNativeScrollbarsInvisible);
}
else {
setContentElementCSS(true);
setContentElementCSS(false);
}
}
if (ignoreOverlayScrollbarHiding) {
arrangeContent.w = arrangeContent.h = _strEmpty;
arrangeChanged = true;
}
if (arrangeChanged && !_nativeScrollbarStyling) {
contentArrangeElementCSS[_strWidth] = hideOverflow.y ? arrangeContent.w : _strEmpty;
contentArrangeElementCSS[_strHeight] = hideOverflow.x ? arrangeContent.h : _strEmpty;
if (!_contentArrangeElement) {
_contentArrangeElement = FRAMEWORK(generateDiv(_classNameContentArrangeElement));
_viewportElement.prepend(_contentArrangeElement);
}
_contentArrangeElement.css(contentArrangeElementCSS);
}
_contentElement.css(contentElementCSS);
}
var viewportElementCSS = {};
var paddingElementCSS = {};
var setViewportCSS;
if (hostSizeChanged || hasOverflow.c || hideOverflow.c || contentScrollSize.c || overflowBehaviorChanged || boxSizingChanged || ignoreOverlayScrollbarHidingChanged || cssDirectionChanged || clipAlwaysChanged || heightAutoChanged) {
viewportElementCSS[isRTLRight] = _strEmpty;
setViewportCSS = function (horizontal) {
var scrollbarVars = getScrollbarVars(horizontal);
var scrollbarVarsInverted = getScrollbarVars(!horizontal);
var xy = scrollbarVars._x_y;
var XY = scrollbarVars._X_Y;
var strDirection = horizontal ? _strBottom : isRTLLeft;
var reset = function () {
viewportElementCSS[strDirection] = _strEmpty;
_contentBorderSize[scrollbarVarsInverted._w_h] = 0;
};
if (hasOverflow[xy] && hideOverflow[xy + 's']) {
viewportElementCSS[strOverflow + XY] = _strScroll;
if (ignoreOverlayScrollbarHiding || _nativeScrollbarStyling) {
reset();
}
else {
viewportElementCSS[strDirection] = -(_nativeScrollbarIsOverlaid[xy] ? _overlayScrollbarDummySize[xy] : _nativeScrollbarSize[xy]);
_contentBorderSize[scrollbarVarsInverted._w_h] = _nativeScrollbarIsOverlaid[xy] ? _overlayScrollbarDummySize[scrollbarVarsInverted._x_y] : 0;
}
} else {
viewportElementCSS[strOverflow + XY] = _strEmpty;
reset();
}
};
setViewportCSS(true);
setViewportCSS(false);
// if the scroll container is too small and if there is any overflow with no overlay scrollbar (and scrollbar styling isn't possible),
// make viewport element greater in size (Firefox hide Scrollbars fix)
// because firefox starts hiding scrollbars on too small elements
// with this behavior the overflow calculation may be incorrect or the scrollbars would appear suddenly
// https://bugzilla.mozilla.org/show_bug.cgi?id=292284
if (!_nativeScrollbarStyling
&& (_viewportSize.h < _nativeScrollbarMinSize.x || _viewportSize.w < _nativeScrollbarMinSize.y)
&& ((hasOverflow.x && hideOverflow.x && !_nativeScrollbarIsOverlaid.x) || (hasOverflow.y && hideOverflow.y && !_nativeScrollbarIsOverlaid.y))) {
viewportElementCSS[_strPaddingMinus + _strTop] = _nativeScrollbarMinSize.x;
viewportElementCSS[_strMarginMinus + _strTop] = -_nativeScrollbarMinSize.x;
viewportElementCSS[_strPaddingMinus + isRTLRight] = _nativeScrollbarMinSize.y;
viewportElementCSS[_strMarginMinus + isRTLRight] = -_nativeScrollbarMinSize.y;
}
else {
viewportElementCSS[_strPaddingMinus + _strTop] =
viewportElementCSS[_strMarginMinus + _strTop] =
viewportElementCSS[_strPaddingMinus + isRTLRight] =
viewportElementCSS[_strMarginMinus + isRTLRight] = _strEmpty;
}
viewportElementCSS[_strPaddingMinus + isRTLLeft] =
viewportElementCSS[_strMarginMinus + isRTLLeft] = _strEmpty;
//if there is any overflow (x OR y axis) and this overflow shall be hidden, make overflow hidden, else overflow visible
if ((hasOverflow.x && hideOverflow.x) || (hasOverflow.y && hideOverflow.y) || hideOverflowForceTextarea) {
//only hide if is Textarea
if (_isTextarea && hideOverflowForceTextarea) {
paddingElementCSS[strOverflowX] =
paddingElementCSS[strOverflowY] = strHidden;
}
}
else {
if (!clipAlways || (overflowBehaviorIsVH.x || overflowBehaviorIsVS.x || overflowBehaviorIsVH.y || overflowBehaviorIsVS.y)) {
//only un-hide if Textarea
if (_isTextarea) {
paddingElementCSS[strOverflowX] =
paddingElementCSS[strOverflowY] = _strEmpty;
}
viewportElementCSS[strOverflowX] =
viewportElementCSS[strOverflowY] = strVisible;
}
}
_paddingElement.css(paddingElementCSS);
_viewportElement.css(viewportElementCSS);
viewportElementCSS = {};
//force soft redraw in webkit because without the scrollbars will may appear because DOM wont be redrawn under special conditions
if ((hasOverflow.c || boxSizingChanged || widthAutoChanged || heightAutoChanged) && !(_nativeScrollbarIsOverlaid.x && _nativeScrollbarIsOverlaid.y)) {
var elementStyle = _contentElementNative[LEXICON.s];
var dump;
elementStyle.webkitTransform = 'scale(1)';
elementStyle.display = 'run-in';
dump = _contentElementNative[LEXICON.oH];
elementStyle.display = _strEmpty; //|| dump; //use dump to prevent it from deletion if minify
elementStyle.webkitTransform = _strEmpty;
}
/*
//force hard redraw in webkit if native overlaid scrollbars shall appear
if (ignoreOverlayScrollbarHidingChanged && ignoreOverlayScrollbarHiding) {
_hostElement.hide();
var dump = _hostElementNative[LEXICON.oH];
_hostElement.show();
}
*/
}
//change to direction RTL and width auto Bugfix in Webkit
//without this fix, the DOM still thinks the scrollbar is LTR and thus the content is shifted to the left
contentElementCSS = {};
if (cssDirectionChanged || widthAutoChanged || heightAutoChanged) {
if (_isRTL && widthAuto) {
var floatTmp = _contentElement.css(_strFloat);
var posLeftWithoutFloat = MATH.round(_contentElement.css(_strFloat, _strEmpty).css(_strLeft, _strEmpty).position().left);
_contentElement.css(_strFloat, floatTmp);
var posLeftWithFloat = MATH.round(_contentElement.position().left);
if (posLeftWithoutFloat !== posLeftWithFloat)
contentElementCSS[_strLeft] = posLeftWithoutFloat;
}
else {
contentElementCSS[_strLeft] = _strEmpty;
}
}
_contentElement.css(contentElementCSS);
//handle scroll position
if (_isTextarea && contentSizeChanged) {
var textareaInfo = getTextareaInfo();
if (textareaInfo) {
var textareaRowsChanged = _textareaInfoCache === undefined ? true : textareaInfo._rows !== _textareaInfoCache._rows;
var cursorRow = textareaInfo._cursorRow;
var cursorCol = textareaInfo._cursorColumn;
var widestRow = textareaInfo._widestRow;
var lastRow = textareaInfo._rows;
var lastCol = textareaInfo._columns;
var cursorPos = textareaInfo._cursorPosition;
var cursorMax = textareaInfo._cursorMax;
var cursorIsLastPosition = (cursorPos >= cursorMax && _textareaHasFocus);
var textareaScrollAmount = {
x: (!textareaAutoWrapping && (cursorCol === lastCol && cursorRow === widestRow)) ? _overflowAmountCache.x : -1,
y: (textareaAutoWrapping ? cursorIsLastPosition || textareaRowsChanged && (previousOverflowAmount ? (currScroll.y === previousOverflowAmount.y) : false) : (cursorIsLastPosition || textareaRowsChanged) && cursorRow === lastRow) ? _overflowAmountCache.y : -1
};
currScroll.x = textareaScrollAmount.x > -1 ? (_isRTL && _normalizeRTLCache && _rtlScrollBehavior.i ? 0 : textareaScrollAmount.x) : currScroll.x; //if inverted, scroll to 0 -> normalized this means to max scroll offset.
currScroll.y = textareaScrollAmount.y > -1 ? textareaScrollAmount.y : currScroll.y;
}
_textareaInfoCache = textareaInfo;
}
if (_isRTL && _rtlScrollBehavior.i && _nativeScrollbarIsOverlaid.y && hasOverflow.x && _normalizeRTLCache)
currScroll.x += _contentBorderSize.w || 0;
if (widthAuto)
_hostElement[_strScrollLeft](0);
if (heightAuto)
_hostElement[_strScrollTop](0);
_viewportElement[_strScrollLeft](currScroll.x)[_strScrollTop](currScroll.y);
//scrollbars management:
var scrollbarsVisibilityVisible = scrollbarsVisibility === 'v';
var scrollbarsVisibilityHidden = scrollbarsVisibility === 'h';
var scrollbarsVisibilityAuto = scrollbarsVisibility === 'a';
var showScrollbarH = COMPATIBILITY.bind(refreshScrollbarAppearance, 0, true, true, canScroll.x);
var showScrollbarV = COMPATIBILITY.bind(refreshScrollbarAppearance, 0, false, true, canScroll.y);
var hideScrollbarH = COMPATIBILITY.bind(refreshScrollbarAppearance, 0, true, false, canScroll.x);
var hideScrollbarV = COMPATIBILITY.bind(refreshScrollbarAppearance, 0, false, false, canScroll.y);
//manage class name which indicates scrollable overflow
if (hideOverflow.x || hideOverflow.y)
addClass(_hostElement, _classNameHostOverflow);
else
removeClass(_hostElement, _classNameHostOverflow);
if (hideOverflow.x)
addClass(_hostElement, _classNameHostOverflowX);
else
removeClass(_hostElement, _classNameHostOverflowX);
if (hideOverflow.y)
addClass(_hostElement, _classNameHostOverflowY);
else
removeClass(_hostElement, _classNameHostOverflowY);
//add or remove rtl class name for styling purposes
if (cssDirectionChanged) {
if (_isRTL)
addClass(_hostElement, _classNameHostRTL);
else
removeClass(_hostElement, _classNameHostRTL);
}
//manage the resize feature (CSS3 resize "polyfill" for this plugin)
if (_isBody)
addClass(_hostElement, _classNameHostResizeDisabled);
if (resizeChanged) {
removeClass(_scrollbarCornerElement, [
_classNameScrollbarCornerResize,
_classNameScrollbarCornerResizeB,
_classNameScrollbarCornerResizeH,
_classNameScrollbarCornerResizeV].join(_strSpace));
if (_resizeNone) {
addClass(_hostElement, _classNameHostResizeDisabled);
}
else {
removeClass(_hostElement, _classNameHostResizeDisabled);
addClass(_scrollbarCornerElement, _classNameScrollbarCornerResize);
if (_resizeBoth)
addClass(_scrollbarCornerElement, _classNameScrollbarCornerResizeB);
else if (_resizeHorizontal)
addClass(_scrollbarCornerElement, _classNameScrollbarCornerResizeH);
else if (_resizeVertical)
addClass(_scrollbarCornerElement, _classNameScrollbarCornerResizeV);
}
}
//manage the scrollbars general visibility + the scrollbar interactivity (unusable class name)
if (scrollbarsVisibilityChanged || overflowBehaviorChanged || hideOverflow.c || hasOverflow.c || ignoreOverlayScrollbarHidingChanged) {
if (ignoreOverlayScrollbarHiding) {
if (ignoreOverlayScrollbarHidingChanged) {
removeClass(_hostElement, _classNameHostScrolling);
if (ignoreOverlayScrollbarHiding) {
hideScrollbarH();
hideScrollbarV();
}
}
}
else if (scrollbarsVisibilityAuto) {
if (canScroll.x)
showScrollbarH();
else
hideScrollbarH();
if (canScroll.y)
showScrollbarV();
else
hideScrollbarV();
}
else if (scrollbarsVisibilityVisible) {
showScrollbarH();
showScrollbarV();
}
else if (scrollbarsVisibilityHidden) {
hideScrollbarH();
hideScrollbarV();
}
}
//manage the scrollbars auto hide feature (auto hide them after specific actions)
if (scrollbarsAutoHideChanged || ignoreOverlayScrollbarHidingChanged) {
if (_scrollbarsAutoHideLeave || _scrollbarsAutoHideMove) {
setupHostMouseTouchEvents(true);
setupHostMouseTouchEvents();
}
else {
setupHostMouseTouchEvents(true);
}
if (_scrollbarsAutoHideNever)
refreshScrollbarsAutoHide(true);
else
refreshScrollbarsAutoHide(false, true);
}
//manage scrollbars handle length & offset - don't remove!
if (hostSizeChanged || overflowAmount.c || heightAutoChanged || widthAutoChanged || resizeChanged || boxSizingChanged || paddingAbsoluteChanged || ignoreOverlayScrollbarHidingChanged || cssDirectionChanged) {
refreshScrollbarHandleLength(true);
refreshScrollbarHandleOffset(true);
refreshScrollbarHandleLength(false);
refreshScrollbarHandleOffset(false);
}
//manage interactivity
if (scrollbarsClickScrollingChanged)
refreshScrollbarsInteractive(true, scrollbarsClickScrolling);
if (scrollbarsDragScrollingChanged)
refreshScrollbarsInteractive(false, scrollbarsDragScrolling);
//callbacks:
if (cssDirectionChanged) {
dispatchCallback('onDirectionChanged', {
isRTL: _isRTL,
dir: cssDirection
});
}
if (hostSizeChanged) {
dispatchCallback('onHostSizeChanged', {
width: _hostSizeCache.w,
height: _hostSizeCache.h
});
}
if (contentSizeChanged) {
dispatchCallback('onContentSizeChanged', {
width: _contentScrollSizeCache.w,
height: _contentScrollSizeCache.h
});
}
if (hasOverflow.c || hideOverflow.c) {
dispatchCallback('onOverflowChanged', {
x: hasOverflow.x,
y: hasOverflow.y,
xScrollable: hideOverflow.xs,
yScrollable: hideOverflow.ys,
clipped: hideOverflow.x || hideOverflow.y
});
}
if (overflowAmount.c) {
dispatchCallback('onOverflowAmountChanged', {
x: overflowAmount.x,
y: overflowAmount.y
});
}
}
//fix body min size
if (_isBody && _bodyMinSizeCache && (_hasOverflowCache.c || _bodyMinSizeCache.c)) {
//its possible that no min size was measured until now, because the content arrange element was just added now, in this case, measure now the min size.
if (!_bodyMinSizeCache.f)
bodyMinSizeChanged();
if (_nativeScrollbarIsOverlaid.y && _hasOverflowCache.x)
_contentElement.css(_strMinMinus + _strWidth, _bodyMinSizeCache.w + _overlayScrollbarDummySize.y);
if (_nativeScrollbarIsOverlaid.x && _hasOverflowCache.y)
_contentElement.css(_strMinMinus + _strHeight, _bodyMinSizeCache.h + _overlayScrollbarDummySize.x);
_bodyMinSizeCache.c = false;
}
//freezeResizeObserver(_sizeObserverElement, false);
//freezeResizeObserver(_sizeAutoObserverElement, false);
dispatchCallback('onUpdated', { forced: force });
}
//==== Options ====//
/**
* Sets new options but doesn't call the update method.
* @param newOptions The object which contains the new options.
* @returns {*} A object which contains the changed options.
*/
function setOptions(newOptions) {
var validatedOpts = _pluginsOptions._validate(newOptions, _pluginsOptions._template, true, _currentOptions)
_currentOptions = extendDeep({}, _currentOptions, validatedOpts._default);
_currentPreparedOptions = extendDeep({}, _currentPreparedOptions, validatedOpts._prepared);
return validatedOpts._prepared;
}
//==== Structure ====//
/**
* Builds or destroys the wrapper and helper DOM elements.
* @param destroy Indicates whether the DOM shall be build or destroyed.
*/
function setupStructureDOM(destroy) {
var strParent = 'parent';
var classNameResizeObserverHost = 'os-resize-observer-host';
var classNameTextareaElementFull = _classNameTextareaElement + _strSpace + _classNameTextInherit;
var textareaClass = _isTextarea ? _strSpace + _classNameTextInherit : _strEmpty;
var adoptAttrs = _currentPreparedOptions.textarea.inheritedAttrs;
var adoptAttrsMap = {};
var applyAdoptedAttrs = function () {
var applyAdoptedAttrsElm = destroy ? _targetElement : _hostElement;
each(adoptAttrsMap, function (key, value) {
if (type(value) == TYPES.s) {
if (key == LEXICON.c)
applyAdoptedAttrsElm.addClass(value);
else
applyAdoptedAttrsElm.attr(key, value);
}
});
};
var hostElementClassNames = [
_classNameHostElement,
_classNameHostTextareaElement,
_classNameHostResizeDisabled,
_classNameHostRTL,
_classNameHostScrollbarHorizontalHidden,
_classNameHostScrollbarVerticalHidden,
_classNameHostTransition,
_classNameHostScrolling,
_classNameHostOverflow,
_classNameHostOverflowX,
_classNameHostOverflowY,
_classNameThemeNone,
_classNameTextareaElement,
_classNameTextInherit,
_classNameCache].join(_strSpace);
var hostElementCSS = {};
//get host element as first element, because that's the most upper element and required for the other elements
_hostElement = _hostElement || (_isTextarea ? (_domExists ? _targetElement[strParent]()[strParent]()[strParent]()[strParent]() : FRAMEWORK(generateDiv(_classNameHostTextareaElement))) : _targetElement);
_contentElement = _contentElement || selectOrGenerateDivByClass(_classNameContentElement + textareaClass);
_viewportElement = _viewportElement || selectOrGenerateDivByClass(_classNameViewportElement + textareaClass);
_paddingElement = _paddingElement || selectOrGenerateDivByClass(_classNamePaddingElement + textareaClass);
_sizeObserverElement = _sizeObserverElement || selectOrGenerateDivByClass(classNameResizeObserverHost);
_textareaCoverElement = _textareaCoverElement || (_isTextarea ? selectOrGenerateDivByClass(_classNameTextareaCoverElement) : undefined);
//on destroy, remove all generated class names from the host element before collecting the adopted attributes
//to prevent adopting generated class names
if (destroy)
removeClass(_hostElement, hostElementClassNames);
//collect all adopted attributes
adoptAttrs = type(adoptAttrs) == TYPES.s ? adoptAttrs.split(_strSpace) : adoptAttrs;
if (type(adoptAttrs) == TYPES.a && _isTextarea) {
each(adoptAttrs, function (i, v) {
if (type(v) == TYPES.s) {
adoptAttrsMap[v] = destroy ? _hostElement.attr(v) : _targetElement.attr(v);
}
});
}
if (!destroy) {
if (_isTextarea) {
if (!_currentPreparedOptions.sizeAutoCapable) {
hostElementCSS[_strWidth] = _targetElement.css(_strWidth);
hostElementCSS[_strHeight] = _targetElement.css(_strHeight);
}
if (!_domExists)
_targetElement.addClass(_classNameTextInherit).wrap(_hostElement);
//jQuery clones elements in wrap functions, so we have to select them again
_hostElement = _targetElement[strParent]().css(hostElementCSS);
}
if (!_domExists) {
//add the correct class to the target element
addClass(_targetElement, _isTextarea ? classNameTextareaElementFull : _classNameHostElement);
//wrap the content into the generated elements to create the required DOM
_hostElement.wrapInner(_contentElement)
.wrapInner(_viewportElement)
.wrapInner(_paddingElement)
.prepend(_sizeObserverElement);
//jQuery clones elements in wrap functions, so we have to select them again
_contentElement = findFirst(_hostElement, _strDot + _classNameContentElement);
_viewportElement = findFirst(_hostElement, _strDot + _classNameViewportElement);
_paddingElement = findFirst(_hostElement, _strDot + _classNamePaddingElement);
if (_isTextarea) {
_contentElement.prepend(_textareaCoverElement);
applyAdoptedAttrs();
}
}
if (_nativeScrollbarStyling)
addClass(_viewportElement, _classNameViewportNativeScrollbarsInvisible);
if (_nativeScrollbarIsOverlaid.x && _nativeScrollbarIsOverlaid.y)
addClass(_viewportElement, _classNameViewportNativeScrollbarsOverlaid);
if (_isBody)
addClass(_htmlElement, _classNameHTMLElement);
_sizeObserverElementNative = _sizeObserverElement[0];
_hostElementNative = _hostElement[0];
_paddingElementNative = _paddingElement[0];
_viewportElementNative = _viewportElement[0];
_contentElementNative = _contentElement[0];
updateViewportAttrsFromTarget();
}
else {
if (_domExists && _initialized) {
//clear size observer
_sizeObserverElement.children().remove();
//remove the style property and classes from already generated elements
each([_paddingElement, _viewportElement, _contentElement, _textareaCoverElement], function (i, elm) {
if (elm) {
removeClass(elm.removeAttr(LEXICON.s), _classNamesDynamicDestroy);
}
});
//add classes to the host element which was removed previously to match the expected DOM
addClass(_hostElement, _isTextarea ? _classNameHostTextareaElement : _classNameHostElement);
}
else {
//remove size observer
remove(_sizeObserverElement);
//unwrap the content to restore DOM
_contentElement.contents()
.unwrap()
.unwrap()
.unwrap();
if (_isTextarea) {
_targetElement.unwrap();
remove(_hostElement);
remove(_textareaCoverElement);
applyAdoptedAttrs();
}
}
if (_isTextarea)
_targetElement.removeAttr(LEXICON.s);
if (_isBody)
removeClass(_htmlElement, _classNameHTMLElement);
}
}
/**
* Adds or removes all wrapper elements interactivity events.
* @param destroy Indicates whether the Events shall be added or removed.
*/
function setupStructureEvents() {
var textareaKeyDownRestrictedKeyCodes = [
112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 123, //F1 to F12
33, 34, //page up, page down
37, 38, 39, 40, //left, up, right, down arrows
16, 17, 18, 19, 20, 144 //Shift, Ctrl, Alt, Pause, CapsLock, NumLock
];
var textareaKeyDownKeyCodesList = [];
var textareaUpdateIntervalID;
var scrollStopTimeoutId;
var scrollStopDelay = 175;
var strFocus = 'focus';
function updateTextarea(doClearInterval) {
textareaUpdate();
_base.update(_strAuto);
if (doClearInterval && _autoUpdateRecommended)
clearInterval(textareaUpdateIntervalID);
}
function textareaOnScroll(event) {
_targetElement[_strScrollLeft](_rtlScrollBehavior.i && _normalizeRTLCache ? 9999999 : 0);
_targetElement[_strScrollTop](0);
COMPATIBILITY.prvD(event);
COMPATIBILITY.stpP(event);
return false;
}
function textareaOnDrop(event) {
setTimeout(function () {
if (!_destroyed)
updateTextarea();
}, 50);
}
function textareaOnFocus() {
_textareaHasFocus = true;
addClass(_hostElement, strFocus);
}
function textareaOnFocusout() {
_textareaHasFocus = false;
textareaKeyDownKeyCodesList = [];
removeClass(_hostElement, strFocus);
updateTextarea(true);
}
function textareaOnKeyDown(event) {
var keyCode = event.keyCode;
if (inArray(keyCode, textareaKeyDownRestrictedKeyCodes) < 0) {
if (!textareaKeyDownKeyCodesList[LEXICON.l]) {
updateTextarea();
textareaUpdateIntervalID = setInterval(updateTextarea, 1000 / 60);
}
if (inArray(keyCode, textareaKeyDownKeyCodesList) < 0)
textareaKeyDownKeyCodesList.push(keyCode);
}
}
function textareaOnKeyUp(event) {
var keyCode = event.keyCode;
var index = inArray(keyCode, textareaKeyDownKeyCodesList);
if (inArray(keyCode, textareaKeyDownRestrictedKeyCodes) < 0) {
if (index > -1)
textareaKeyDownKeyCodesList.splice(index, 1);
if (!textareaKeyDownKeyCodesList[LEXICON.l])
updateTextarea(true);
}
}
function contentOnTransitionEnd(event) {
if (_autoUpdateCache === true)
return;
event = event.originalEvent || event;
if (isSizeAffectingCSSProperty(event.propertyName))
_base.update(_strAuto);
}
function viewportOnScroll(event) {
if (!_sleeping) {
if (scrollStopTimeoutId !== undefined)
clearTimeout(scrollStopTimeoutId);
else {
if (_scrollbarsAutoHideScroll || _scrollbarsAutoHideMove)
refreshScrollbarsAutoHide(true);
if (!nativeOverlayScrollbarsAreActive())
addClass(_hostElement, _classNameHostScrolling);
dispatchCallback('onScrollStart', event);
}
//if a scrollbars handle gets dragged, the mousemove event is responsible for refreshing the handle offset
//because if CSS scroll-snap is used, the handle offset gets only refreshed on every snap point
//this looks laggy & clunky, it looks much better if the offset refreshes with the mousemove
if (!_scrollbarsHandlesDefineScrollPos) {
refreshScrollbarHandleOffset(true);
refreshScrollbarHandleOffset(false);
}
dispatchCallback('onScroll', event);
scrollStopTimeoutId = setTimeout(function () {
if (!_destroyed) {
//OnScrollStop:
clearTimeout(scrollStopTimeoutId);
scrollStopTimeoutId = undefined;
if (_scrollbarsAutoHideScroll || _scrollbarsAutoHideMove)
refreshScrollbarsAutoHide(false);
if (!nativeOverlayScrollbarsAreActive())
removeClass(_hostElement, _classNameHostScrolling);
dispatchCallback('onScrollStop', event);
}
}, scrollStopDelay);
}
}
if (_isTextarea) {
if (_msieVersion > 9 || !_autoUpdateRecommended) {
addDestroyEventListener(_targetElement, 'input', updateTextarea);
}
else {
addDestroyEventListener(_targetElement,
[_strKeyDownEvent, _strKeyUpEvent],
[textareaOnKeyDown, textareaOnKeyUp]);
}
addDestroyEventListener(_targetElement,
[_strScroll, 'drop', strFocus, strFocus + 'out'],
[textareaOnScroll, textareaOnDrop, textareaOnFocus, textareaOnFocusout]);
}
else {
addDestroyEventListener(_contentElement, _strTransitionEndEvent, contentOnTransitionEnd);
}
addDestroyEventListener(_viewportElement, _strScroll, viewportOnScroll, true);
}
//==== Scrollbars ====//
/**
* Builds or destroys all scrollbar DOM elements (scrollbar, track, handle)
* @param destroy Indicates whether the DOM shall be build or destroyed.
*/
function setupScrollbarsDOM(destroy) {
var selectOrGenerateScrollbarDOM = function (isHorizontal) {
var scrollbarClassName = isHorizontal ? _classNameScrollbarHorizontal : _classNameScrollbarVertical;
var scrollbar = selectOrGenerateDivByClass(_classNameScrollbar + _strSpace + scrollbarClassName, true);
var track = selectOrGenerateDivByClass(_classNameScrollbarTrack, scrollbar);
var handle = selectOrGenerateDivByClass(_classNameScrollbarHandle, scrollbar);
if (!_domExists && !destroy) {
scrollbar.append(track);
track.append(handle);
}
return {
_scrollbar: scrollbar,
_track: track,
_handle: handle
};
};
function resetScrollbarDOM(isHorizontal) {
var scrollbarVars = getScrollbarVars(isHorizontal);
var scrollbar = scrollbarVars._scrollbar;
var track = scrollbarVars._track;
var handle = scrollbarVars._handle;
if (_domExists && _initialized) {
each([scrollbar, track, handle], function (i, elm) {
removeClass(elm.removeAttr(LEXICON.s), _classNamesDynamicDestroy);
});
}
else {
remove(scrollbar || selectOrGenerateScrollbarDOM(isHorizontal)._scrollbar);
}
}
var horizontalElements;
var verticalElements;
if (!destroy) {
horizontalElements = selectOrGenerateScrollbarDOM(true);
verticalElements = selectOrGenerateScrollbarDOM();
_scrollbarHorizontalElement = horizontalElements._scrollbar;
_scrollbarHorizontalTrackElement = horizontalElements._track;
_scrollbarHorizontalHandleElement = horizontalElements._handle;
_scrollbarVerticalElement = verticalElements._scrollbar;
_scrollbarVerticalTrackElement = verticalElements._track;
_scrollbarVerticalHandleElement = verticalElements._handle;
if (!_domExists) {
_paddingElement.after(_scrollbarVerticalElement);
_paddingElement.after(_scrollbarHorizontalElement);
}
}
else {
resetScrollbarDOM(true);
resetScrollbarDOM();
}
}
/**
* Initializes all scrollbar interactivity events. (track and handle dragging, clicking, scrolling)
* @param isHorizontal True if the target scrollbar is the horizontal scrollbar, false if the target scrollbar is the vertical scrollbar.
*/
function setupScrollbarEvents(isHorizontal) {
var scrollbarVars = getScrollbarVars(isHorizontal);
var scrollbarVarsInfo = scrollbarVars._info;
var insideIFrame = _windowElementNative.top !== _windowElementNative;
var xy = scrollbarVars._x_y;
var XY = scrollbarVars._X_Y;
var scroll = _strScroll + scrollbarVars._Left_Top;
var strActive = 'active';
var strSnapHandle = 'snapHandle';
var scrollDurationFactor = 1;
var increaseDecreaseScrollAmountKeyCodes = [16, 17]; //shift, ctrl
var trackTimeout;
var mouseDownScroll;
var mouseDownOffset;
var mouseDownInvertedScale;
function getPointerPosition(event) {
return _msieVersion && insideIFrame ? event['screen' + XY] : COMPATIBILITY.page(event)[xy]; //use screen coordinates in EDGE & IE because the page values are incorrect in frames.
}
function getPreparedScrollbarsOption(name) {
return _currentPreparedOptions.scrollbars[name];
}
function increaseTrackScrollAmount() {
scrollDurationFactor = 0.5;
}
function decreaseTrackScrollAmount() {
scrollDurationFactor = 1;
}
function documentKeyDown(event) {
if (inArray(event.keyCode, increaseDecreaseScrollAmountKeyCodes) > -1)
increaseTrackScrollAmount();
}
function documentKeyUp(event) {
if (inArray(event.keyCode, increaseDecreaseScrollAmountKeyCodes) > -1)
decreaseTrackScrollAmount();
}
function onMouseTouchDownContinue(event) {
var originalEvent = event.originalEvent || event;
var isTouchEvent = originalEvent.touches !== undefined;
return _sleeping || _destroyed || nativeOverlayScrollbarsAreActive() || !_scrollbarsDragScrollingCache || (isTouchEvent && !getPreparedScrollbarsOption('touchSupport')) ? false : COMPATIBILITY.mBtn(event) === 1 || isTouchEvent;
}
function documentDragMove(event) {
if (onMouseTouchDownContinue(event)) {
var trackLength = scrollbarVarsInfo._trackLength;
var handleLength = scrollbarVarsInfo._handleLength;
var scrollRange = scrollbarVarsInfo._maxScroll;
var scrollRaw = (getPointerPosition(event) - mouseDownOffset) * mouseDownInvertedScale;
var scrollDeltaPercent = scrollRaw / (trackLength - handleLength);
var scrollDelta = (scrollRange * scrollDeltaPercent);
scrollDelta = isFinite(scrollDelta) ? scrollDelta : 0;
if (_isRTL && isHorizontal && !_rtlScrollBehavior.i)
scrollDelta *= -1;
_viewportElement[scroll](MATH.round(mouseDownScroll + scrollDelta));
if (_scrollbarsHandlesDefineScrollPos)
refreshScrollbarHandleOffset(isHorizontal, mouseDownScroll + scrollDelta);
if (!_supportPassiveEvents)
COMPATIBILITY.prvD(event);
}
else
documentMouseTouchUp(event);
}
function documentMouseTouchUp(event) {
event = event || event.originalEvent;
setupResponsiveEventListener(_documentElement,
[_strMouseTouchMoveEvent, _strMouseTouchUpEvent, _strKeyDownEvent, _strKeyUpEvent, _strSelectStartEvent],
[documentDragMove, documentMouseTouchUp, documentKeyDown, documentKeyUp, documentOnSelectStart],
true);
if (_scrollbarsHandlesDefineScrollPos)
refreshScrollbarHandleOffset(isHorizontal, true);
_scrollbarsHandlesDefineScrollPos = false;
removeClass(_bodyElement, _classNameDragging);
removeClass(scrollbarVars._handle, strActive);
removeClass(scrollbarVars._track, strActive);
removeClass(scrollbarVars._scrollbar, strActive);
mouseDownScroll = undefined;
mouseDownOffset = undefined;
mouseDownInvertedScale = 1;
decreaseTrackScrollAmount();
if (trackTimeout !== undefined) {
_base.scrollStop();
clearTimeout(trackTimeout);
trackTimeout = undefined;
}
if (event) {
var rect = _hostElementNative[LEXICON.bCR]();
var mouseInsideHost = event.clientX >= rect.left && event.clientX <= rect.right && event.clientY >= rect.top && event.clientY <= rect.bottom;
//if mouse is outside host element
if (!mouseInsideHost)
hostOnMouseLeave();
if (_scrollbarsAutoHideScroll || _scrollbarsAutoHideMove)
refreshScrollbarsAutoHide(false);
}
}
function onHandleMouseTouchDown(event) {
if (onMouseTouchDownContinue(event))
onHandleMouseTouchDownAction(event);
}
function onHandleMouseTouchDownAction(event) {
mouseDownScroll = _viewportElement[scroll]();
mouseDownScroll = isNaN(mouseDownScroll) ? 0 : mouseDownScroll;
if (_isRTL && isHorizontal && !_rtlScrollBehavior.n || !_isRTL)
mouseDownScroll = mouseDownScroll < 0 ? 0 : mouseDownScroll;
mouseDownInvertedScale = getHostElementInvertedScale()[xy];
mouseDownOffset = getPointerPosition(event);
_scrollbarsHandlesDefineScrollPos = !getPreparedScrollbarsOption(strSnapHandle);
addClass(_bodyElement, _classNameDragging);
addClass(scrollbarVars._handle, strActive);
addClass(scrollbarVars._scrollbar, strActive);
setupResponsiveEventListener(_documentElement,
[_strMouseTouchMoveEvent, _strMouseTouchUpEvent, _strSelectStartEvent],
[documentDragMove, documentMouseTouchUp, documentOnSelectStart]);
if (_msieVersion || !_documentMixed)
COMPATIBILITY.prvD(event);
COMPATIBILITY.stpP(event);
}
function onTrackMouseTouchDown(event) {
if (onMouseTouchDownContinue(event)) {
var scrollDistance = MATH.round(_viewportSize[scrollbarVars._w_h]);
var trackOffset = scrollbarVars._track.offset()[scrollbarVars._left_top];
var ctrlKey = event.ctrlKey;
var instantScroll = event.shiftKey;
var instantScrollTransition = instantScroll && ctrlKey;
var isFirstIteration = true;
var easing = 'linear';
var decreaseScroll;
var finishedCondition;
var scrollActionFinsished = function (transition) {
if (_scrollbarsHandlesDefineScrollPos)
refreshScrollbarHandleOffset(isHorizontal, transition);
};
var scrollActionInstantFinished = function () {
scrollActionFinsished();
onHandleMouseTouchDownAction(event);
};
var scrollAction = function () {
if (!_destroyed) {
var mouseOffset = (mouseDownOffset - trackOffset) * mouseDownInvertedScale;
var handleOffset = scrollbarVarsInfo._handleOffset;
var trackLength = scrollbarVarsInfo._trackLength;
var handleLength = scrollbarVarsInfo._handleLength;
var scrollRange = scrollbarVarsInfo._maxScroll;
var currScroll = scrollbarVarsInfo._currentScroll;
var scrollDuration = 270 * scrollDurationFactor;
var timeoutDelay = isFirstIteration ? MATH.max(400, scrollDuration) : scrollDuration;
var instantScrollPosition = scrollRange * ((mouseOffset - (handleLength / 2)) / (trackLength - handleLength)); // 100% * positionPercent
var rtlIsNormal = _isRTL && isHorizontal && ((!_rtlScrollBehavior.i && !_rtlScrollBehavior.n) || _normalizeRTLCache);
var decreaseScrollCondition = rtlIsNormal ? handleOffset < mouseOffset : handleOffset > mouseOffset;
var scrollObj = {};
var animationObj = {
easing: easing,
step: function (now) {
if (_scrollbarsHandlesDefineScrollPos) {
_viewportElement[scroll](now); //https://github.com/jquery/jquery/issues/4340
refreshScrollbarHandleOffset(isHorizontal, now);
}
}
};
instantScrollPosition = isFinite(instantScrollPosition) ? instantScrollPosition : 0;
instantScrollPosition = _isRTL && isHorizontal && !_rtlScrollBehavior.i ? (scrollRange - instantScrollPosition) : instantScrollPosition;
//_base.scrollStop();
if (instantScroll) {
_viewportElement[scroll](instantScrollPosition); //scroll instantly to new position
if (instantScrollTransition) {
//get the scroll position after instant scroll (in case CSS Snap Points are used) to get the correct snapped scroll position
//and the animation stops at the correct point
instantScrollPosition = _viewportElement[scroll]();
//scroll back to the position before instant scrolling so animation can be performed
_viewportElement[scroll](currScroll);
instantScrollPosition = rtlIsNormal && _rtlScrollBehavior.i ? (scrollRange - instantScrollPosition) : instantScrollPosition;
instantScrollPosition = rtlIsNormal && _rtlScrollBehavior.n ? -instantScrollPosition : instantScrollPosition;
scrollObj[xy] = instantScrollPosition;
_base.scroll(scrollObj, extendDeep(animationObj, {
duration: 130,
complete: scrollActionInstantFinished
}));
}
else
scrollActionInstantFinished();
}
else {
decreaseScroll = isFirstIteration ? decreaseScrollCondition : decreaseScroll;
finishedCondition = rtlIsNormal
? (decreaseScroll ? handleOffset + handleLength >= mouseOffset : handleOffset <= mouseOffset)
: (decreaseScroll ? handleOffset <= mouseOffset : handleOffset + handleLength >= mouseOffset);
if (finishedCondition) {
clearTimeout(trackTimeout);
_base.scrollStop();
trackTimeout = undefined;
scrollActionFinsished(true);
}
else {
trackTimeout = setTimeout(scrollAction, timeoutDelay);
scrollObj[xy] = (decreaseScroll ? '-=' : '+=') + scrollDistance;
_base.scroll(scrollObj, extendDeep(animationObj, {
duration: scrollDuration
}));
}
isFirstIteration = false;
}
}
};
if (ctrlKey)
increaseTrackScrollAmount();
mouseDownInvertedScale = getHostElementInvertedScale()[xy];
mouseDownOffset = COMPATIBILITY.page(event)[xy];
_scrollbarsHandlesDefineScrollPos = !getPreparedScrollbarsOption(strSnapHandle);
addClass(_bodyElement, _classNameDragging);
addClass(scrollbarVars._track, strActive);
addClass(scrollbarVars._scrollbar, strActive);
setupResponsiveEventListener(_documentElement,
[_strMouseTouchUpEvent, _strKeyDownEvent, _strKeyUpEvent, _strSelectStartEvent],
[documentMouseTouchUp, documentKeyDown, documentKeyUp, documentOnSelectStart]);
scrollAction();
COMPATIBILITY.prvD(event);
COMPATIBILITY.stpP(event);
}
}
function onTrackMouseTouchEnter(event) {
//make sure both scrollbars will stay visible if one scrollbar is hovered if autoHide is "scroll" or "move".
_scrollbarsHandleHovered = true;
if (_scrollbarsAutoHideScroll || _scrollbarsAutoHideMove)
refreshScrollbarsAutoHide(true);
}
function onTrackMouseTouchLeave(event) {
_scrollbarsHandleHovered = false;
if (_scrollbarsAutoHideScroll || _scrollbarsAutoHideMove)
refreshScrollbarsAutoHide(false);
}
function onScrollbarMouseTouchDown(event) {
COMPATIBILITY.stpP(event);
}
addDestroyEventListener(scrollbarVars._handle,
_strMouseTouchDownEvent,
onHandleMouseTouchDown);
addDestroyEventListener(scrollbarVars._track,
[_strMouseTouchDownEvent, _strMouseTouchEnter, _strMouseTouchLeave],
[onTrackMouseTouchDown, onTrackMouseTouchEnter, onTrackMouseTouchLeave]);
addDestroyEventListener(scrollbarVars._scrollbar,
_strMouseTouchDownEvent,
onScrollbarMouseTouchDown);
if (_supportTransition) {
addDestroyEventListener(scrollbarVars._scrollbar, _strTransitionEndEvent, function (event) {
if (event.target !== scrollbarVars._scrollbar[0])
return;
refreshScrollbarHandleLength(isHorizontal);
refreshScrollbarHandleOffset(isHorizontal);
});
}
}
/**
* Shows or hides the given scrollbar and applied a class name which indicates if the scrollbar is scrollable or not.
* @param isHorizontal True if the horizontal scrollbar is the target, false if the vertical scrollbar is the target.
* @param shallBeVisible True if the scrollbar shall be shown, false if hidden.
* @param canScroll True if the scrollbar is scrollable, false otherwise.
*/
function refreshScrollbarAppearance(isHorizontal, shallBeVisible, canScroll) {
var scrollbarClassName = isHorizontal ? _classNameHostScrollbarHorizontalHidden : _classNameHostScrollbarVerticalHidden;
var scrollbarElement = isHorizontal ? _scrollbarHorizontalElement : _scrollbarVerticalElement;
if (shallBeVisible)
removeClass(_hostElement, scrollbarClassName);
else
addClass(_hostElement, scrollbarClassName);
if (canScroll)
removeClass(scrollbarElement, _classNameScrollbarUnusable);
else
addClass(scrollbarElement, _classNameScrollbarUnusable);
}
/**
* Autoshows / autohides both scrollbars with.
* @param shallBeVisible True if the scrollbars shall be autoshown (only the case if they are hidden by a autohide), false if the shall be auto hidden.
* @param delayfree True if the scrollbars shall be hidden without a delay, false or undefined otherwise.
*/
function refreshScrollbarsAutoHide(shallBeVisible, delayfree) {
clearTimeout(_scrollbarsAutoHideTimeoutId);
if (shallBeVisible) {
//if(_hasOverflowCache.x && _hideOverflowCache.xs)
removeClass(_scrollbarHorizontalElement, _classNameScrollbarAutoHidden);
//if(_hasOverflowCache.y && _hideOverflowCache.ys)
removeClass(_scrollbarVerticalElement, _classNameScrollbarAutoHidden);
}
else {
var anyActive;
var strActive = 'active';
var hide = function () {
if (!_scrollbarsHandleHovered && !_destroyed) {
anyActive = _scrollbarHorizontalHandleElement.hasClass(strActive) || _scrollbarVerticalHandleElement.hasClass(strActive);
if (!anyActive && (_scrollbarsAutoHideScroll || _scrollbarsAutoHideMove || _scrollbarsAutoHideLeave))
addClass(_scrollbarHorizontalElement, _classNameScrollbarAutoHidden);
if (!anyActive && (_scrollbarsAutoHideScroll || _scrollbarsAutoHideMove || _scrollbarsAutoHideLeave))
addClass(_scrollbarVerticalElement, _classNameScrollbarAutoHidden);
}
};
if (_scrollbarsAutoHideDelay > 0 && delayfree !== true)
_scrollbarsAutoHideTimeoutId = setTimeout(hide, _scrollbarsAutoHideDelay);
else
hide();
}
}
/**
* Refreshes the handle length of the given scrollbar.
* @param isHorizontal True if the horizontal scrollbar handle shall be refreshed, false if the vertical one shall be refreshed.
*/
function refreshScrollbarHandleLength(isHorizontal) {
var handleCSS = {};
var scrollbarVars = getScrollbarVars(isHorizontal);
var scrollbarVarsInfo = scrollbarVars._info;
var digit = 1000000;
//get and apply intended handle length
var handleRatio = MATH.min(1, (_hostSizeCache[scrollbarVars._w_h] - (_paddingAbsoluteCache ? (isHorizontal ? _paddingX : _paddingY) : 0)) / _contentScrollSizeCache[scrollbarVars._w_h]);
handleCSS[scrollbarVars._width_height] = (MATH.floor(handleRatio * 100 * digit) / digit) + '%'; //the last * digit / digit is for flooring to the 4th digit
if (!nativeOverlayScrollbarsAreActive())
scrollbarVars._handle.css(handleCSS);
//measure the handle length to respect min & max length
scrollbarVarsInfo._handleLength = scrollbarVars._handle[0]['offset' + scrollbarVars._Width_Height];
scrollbarVarsInfo._handleLengthRatio = handleRatio;
}
/**
* Refreshes the handle offset of the given scrollbar.
* @param isHorizontal True if the horizontal scrollbar handle shall be refreshed, false if the vertical one shall be refreshed.
* @param scrollOrTransition The scroll position of the given scrollbar axis to which the handle shall be moved or a boolean which indicates whether a transition shall be applied. If undefined or boolean if the current scroll-offset is taken. (if isHorizontal ? scrollLeft : scrollTop)
*/
function refreshScrollbarHandleOffset(isHorizontal, scrollOrTransition) {
var transition = type(scrollOrTransition) == TYPES.b;
var transitionDuration = 250;
var isRTLisHorizontal = _isRTL && isHorizontal;
var scrollbarVars = getScrollbarVars(isHorizontal);
var scrollbarVarsInfo = scrollbarVars._info;
var strTranslateBrace = 'translate(';
var strTransform = VENDORS._cssProperty('transform');
var strTransition = VENDORS._cssProperty('transition');
var nativeScroll = isHorizontal ? _viewportElement[_strScrollLeft]() : _viewportElement[_strScrollTop]();
var currentScroll = scrollOrTransition === undefined || transition ? nativeScroll : scrollOrTransition;
//measure the handle length to respect min & max length
var handleLength = scrollbarVarsInfo._handleLength;
var trackLength = scrollbarVars._track[0]['offset' + scrollbarVars._Width_Height];
var handleTrackDiff = trackLength - handleLength;
var handleCSS = {};
var transformOffset;
var translateValue;
//DONT use the variable '_contentScrollSizeCache[scrollbarVars._w_h]' instead of '_viewportElement[0]['scroll' + scrollbarVars._Width_Height]'
// because its a bit behind during the small delay when content size updates
//(delay = mutationObserverContentLag, if its 0 then this var could be used)
var maxScroll = (_viewportElementNative[_strScroll + scrollbarVars._Width_Height] - _viewportElementNative['client' + scrollbarVars._Width_Height]) * (_rtlScrollBehavior.n && isRTLisHorizontal ? -1 : 1); //* -1 if rtl scroll max is negative
var getScrollRatio = function (base) {
return isNaN(base / maxScroll) ? 0 : MATH.max(0, MATH.min(1, base / maxScroll));
};
var getHandleOffset = function (scrollRatio) {
var offset = handleTrackDiff * scrollRatio;
offset = isNaN(offset) ? 0 : offset;
offset = (isRTLisHorizontal && !_rtlScrollBehavior.i) ? (trackLength - handleLength - offset) : offset;
offset = MATH.max(0, offset);
return offset;
};
var scrollRatio = getScrollRatio(nativeScroll);
var unsnappedScrollRatio = getScrollRatio(currentScroll);
var handleOffset = getHandleOffset(unsnappedScrollRatio);
var snappedHandleOffset = getHandleOffset(scrollRatio);
scrollbarVarsInfo._maxScroll = maxScroll;
scrollbarVarsInfo._currentScroll = nativeScroll;
scrollbarVarsInfo._currentScrollRatio = scrollRatio;
if (_supportTransform) {
transformOffset = isRTLisHorizontal ? -(trackLength - handleLength - handleOffset) : handleOffset; //in px
//transformOffset = (transformOffset / trackLength * 100) * (trackLength / handleLength); //in %
translateValue = isHorizontal ? strTranslateBrace + transformOffset + 'px, 0)' : strTranslateBrace + '0, ' + transformOffset + 'px)';
handleCSS[strTransform] = translateValue;
//apply or clear up transition
if (_supportTransition)
handleCSS[strTransition] = transition && MATH.abs(handleOffset - scrollbarVarsInfo._handleOffset) > 1 ? getCSSTransitionString(scrollbarVars._handle) + ', ' + (strTransform + _strSpace + transitionDuration + 'ms') : _strEmpty;
}
else
handleCSS[scrollbarVars._left_top] = handleOffset;
//only apply css if offset has changed and overflow exists.
if (!nativeOverlayScrollbarsAreActive()) {
scrollbarVars._handle.css(handleCSS);
//clear up transition
if (_supportTransform && _supportTransition && transition) {
scrollbarVars._handle.one(_strTransitionEndEvent, function () {
if (!_destroyed)
scrollbarVars._handle.css(strTransition, _strEmpty);
});
}
}
scrollbarVarsInfo._handleOffset = handleOffset;
scrollbarVarsInfo._snappedHandleOffset = snappedHandleOffset;
scrollbarVarsInfo._trackLength = trackLength;
}
/**
* Refreshes the interactivity of the given scrollbar element.
* @param isTrack True if the track element is the target, false if the handle element is the target.
* @param value True for interactivity false for no interactivity.
*/
function refreshScrollbarsInteractive(isTrack, value) {
var action = value ? 'removeClass' : 'addClass';
var element1 = isTrack ? _scrollbarHorizontalTrackElement : _scrollbarHorizontalHandleElement;
var element2 = isTrack ? _scrollbarVerticalTrackElement : _scrollbarVerticalHandleElement;
var className = isTrack ? _classNameScrollbarTrackOff : _classNameScrollbarHandleOff;
element1[action](className);
element2[action](className);
}
/**
* Returns a object which is used for fast access for specific variables.
* @param isHorizontal True if the horizontal scrollbar vars shall be accessed, false if the vertical scrollbar vars shall be accessed.
* @returns {{wh: string, WH: string, lt: string, _wh: string, _lt: string, t: *, h: *, c: {}, s: *}}
*/
function getScrollbarVars(isHorizontal) {
return {
_width_height: isHorizontal ? _strWidth : _strHeight,
_Width_Height: isHorizontal ? 'Width' : 'Height',
_left_top: isHorizontal ? _strLeft : _strTop,
_Left_Top: isHorizontal ? 'Left' : 'Top',
_x_y: isHorizontal ? _strX : _strY,
_X_Y: isHorizontal ? 'X' : 'Y',
_w_h: isHorizontal ? 'w' : 'h',
_l_t: isHorizontal ? 'l' : 't',
_track: isHorizontal ? _scrollbarHorizontalTrackElement : _scrollbarVerticalTrackElement,
_handle: isHorizontal ? _scrollbarHorizontalHandleElement : _scrollbarVerticalHandleElement,
_scrollbar: isHorizontal ? _scrollbarHorizontalElement : _scrollbarVerticalElement,
_info: isHorizontal ? _scrollHorizontalInfo : _scrollVerticalInfo
};
}
//==== Scrollbar Corner ====//
/**
* Builds or destroys the scrollbar corner DOM element.
* @param destroy Indicates whether the DOM shall be build or destroyed.
*/
function setupScrollbarCornerDOM(destroy) {
_scrollbarCornerElement = _scrollbarCornerElement || selectOrGenerateDivByClass(_classNameScrollbarCorner, true);
if (!destroy) {
if (!_domExists) {
_hostElement.append(_scrollbarCornerElement);
}
}
else {
if (_domExists && _initialized) {
removeClass(_scrollbarCornerElement.removeAttr(LEXICON.s), _classNamesDynamicDestroy);
}
else {
remove(_scrollbarCornerElement);
}
}
}
/**
* Initializes all scrollbar corner interactivity events.
*/
function setupScrollbarCornerEvents() {
var insideIFrame = _windowElementNative.top !== _windowElementNative;
var mouseDownPosition = {};
var mouseDownSize = {};
var mouseDownInvertedScale = {};
var reconnectMutationObserver;
function documentDragMove(event) {
if (onMouseTouchDownContinue(event)) {
var pageOffset = getCoordinates(event);
var hostElementCSS = {};
if (_resizeHorizontal || _resizeBoth)
hostElementCSS[_strWidth] = (mouseDownSize.w + (pageOffset.x - mouseDownPosition.x) * mouseDownInvertedScale.x);
if (_resizeVertical || _resizeBoth)
hostElementCSS[_strHeight] = (mouseDownSize.h + (pageOffset.y - mouseDownPosition.y) * mouseDownInvertedScale.y);
_hostElement.css(hostElementCSS);
COMPATIBILITY.stpP(event);
}
else {
documentMouseTouchUp(event);
}
}
function documentMouseTouchUp(event) {
var eventIsTrusted = event !== undefined;
setupResponsiveEventListener(_documentElement,
[_strSelectStartEvent, _strMouseTouchMoveEvent, _strMouseTouchUpEvent],
[documentOnSelectStart, documentDragMove, documentMouseTouchUp],
true);
removeClass(_bodyElement, _classNameDragging);
if (_scrollbarCornerElement.releaseCapture)
_scrollbarCornerElement.releaseCapture();
if (eventIsTrusted) {
if (reconnectMutationObserver)
connectMutationObservers();
_base.update(_strAuto);
}
reconnectMutationObserver = false;
}
function onMouseTouchDownContinue(event) {
var originalEvent = event.originalEvent || event;
var isTouchEvent = originalEvent.touches !== undefined;
return _sleeping || _destroyed ? false : COMPATIBILITY.mBtn(event) === 1 || isTouchEvent;
}
function getCoordinates(event) {
return _msieVersion && insideIFrame ? { x: event.screenX, y: event.screenY } : COMPATIBILITY.page(event);
}
addDestroyEventListener(_scrollbarCornerElement, _strMouseTouchDownEvent, function (event) {
if (onMouseTouchDownContinue(event) && !_resizeNone) {
if (_mutationObserversConnected) {
reconnectMutationObserver = true;
disconnectMutationObservers();
}
mouseDownPosition = getCoordinates(event);
mouseDownSize.w = _hostElementNative[LEXICON.oW] - (!_isBorderBox ? _paddingX : 0);
mouseDownSize.h = _hostElementNative[LEXICON.oH] - (!_isBorderBox ? _paddingY : 0);
mouseDownInvertedScale = getHostElementInvertedScale();
setupResponsiveEventListener(_documentElement,
[_strSelectStartEvent, _strMouseTouchMoveEvent, _strMouseTouchUpEvent],
[documentOnSelectStart, documentDragMove, documentMouseTouchUp]);
addClass(_bodyElement, _classNameDragging);
if (_scrollbarCornerElement.setCapture)
_scrollbarCornerElement.setCapture();
COMPATIBILITY.prvD(event);
COMPATIBILITY.stpP(event);
}
});
}
//==== Utils ====//
/**
* Calls the callback with the given name. The Context of this callback is always _base (this).
* @param name The name of the target which shall be called.
* @param args The args with which the callback shall be called.
*/
function dispatchCallback(name, args) {
if (_initialized) {
var callback = _currentPreparedOptions.callbacks[name];
var extensionOnName = name;
var ext;
if (extensionOnName.substr(0, 2) === 'on')
extensionOnName = extensionOnName.substr(2, 1).toLowerCase() + extensionOnName.substr(3);
if (type(callback) == TYPES.f)
callback.call(_base, args);
each(_extensions, function () {
ext = this;
if (type(ext.on) == TYPES.f)
ext.on(extensionOnName, args);
});
}
else if (!_destroyed)
_callbacksInitQeueue.push({ n: name, a: args });
}
/**
* Sets the "top, right, bottom, left" properties, with a given prefix, of the given css object.
* @param targetCSSObject The css object to which the values shall be applied.
* @param prefix The prefix of the "top, right, bottom, left" css properties. (example: 'padding-' is a valid prefix)
* @param values A array of values which shall be applied to the "top, right, bottom, left" -properties. The array order is [top, right, bottom, left].
* If this argument is undefined the value '' (empty string) will be applied to all properties.
*/
function setTopRightBottomLeft(targetCSSObject, prefix, values) {
if (values === undefined)
values = [_strEmpty, _strEmpty, _strEmpty, _strEmpty];
targetCSSObject[prefix + _strTop] = values[0];
targetCSSObject[prefix + _strRight] = values[1];
targetCSSObject[prefix + _strBottom] = values[2];
targetCSSObject[prefix + _strLeft] = values[3];
}
/**
* Returns the computed CSS transition string from the given element.
* @param element The element from which the transition string shall be returned.
* @returns {string} The CSS transition string from the given element.
*/
function getCSSTransitionString(element) {
var transitionStr = VENDORS._cssProperty('transition');
var assembledValue = element.css(transitionStr);
if (assembledValue)
return assembledValue;
var regExpString = '\\s*(' + '([^,(]+(\\(.+?\\))?)+' + ')[\\s,]*';
var regExpMain = new RegExp(regExpString);
var regExpValidate = new RegExp('^(' + regExpString + ')+$');
var properties = 'property duration timing-function delay'.split(' ');
var result = [];
var strResult;
var valueArray;
var i = 0;
var j;
var splitCssStyleByComma = function (str) {
strResult = [];
if (!str.match(regExpValidate))
return str;
while (str.match(regExpMain)) {
strResult.push(RegExp.$1);
str = str.replace(regExpMain, _strEmpty);
}
return strResult;
};
for (; i < properties[LEXICON.l]; i++) {
valueArray = splitCssStyleByComma(element.css(transitionStr + '-' + properties[i]));
for (j = 0; j < valueArray[LEXICON.l]; j++)
result[j] = (result[j] ? result[j] + _strSpace : _strEmpty) + valueArray[j];
}
return result.join(', ');
}
/**
* Calculates the host-elements inverted scale. (invertedScale = 1 / scale)
* @returns {{x: number, y: number}} The scale of the host-element.
*/
function getHostElementInvertedScale() {
var rect = _paddingElementNative[LEXICON.bCR]();
return {
x: _supportTransform ? 1 / (MATH.round(rect.width) / _paddingElementNative[LEXICON.oW]) || 1 : 1,
y: _supportTransform ? 1 / (MATH.round(rect.height) / _paddingElementNative[LEXICON.oH]) || 1 : 1
};
}
/**
* Checks whether the given object is a HTMLElement.
* @param o The object which shall be checked.
* @returns {boolean} True the given object is a HTMLElement, false otherwise.
*/
function isHTMLElement(o) {
var strOwnerDocument = 'ownerDocument';
var strHTMLElement = 'HTMLElement';
var wnd = o && o[strOwnerDocument] ? (o[strOwnerDocument].parentWindow || window) : window;
return (
typeof wnd[strHTMLElement] == TYPES.o ? o instanceof wnd[strHTMLElement] : //DOM2
o && typeof o == TYPES.o && o !== null && o.nodeType === 1 && typeof o.nodeName == TYPES.s
);
}
/**
* Compares 2 arrays and returns the differences between them as a array.
* @param a1 The first array which shall be compared.
* @param a2 The second array which shall be compared.
* @returns {Array} The differences between the two arrays.
*/
function getArrayDifferences(a1, a2) {
var a = [];
var diff = [];
var i;
var k;
for (i = 0; i < a1.length; i++)
a[a1[i]] = true;
for (i = 0; i < a2.length; i++) {
if (a[a2[i]])
delete a[a2[i]];
else
a[a2[i]] = true;
}
for (k in a)
diff.push(k);
return diff;
}
/**
* Returns Zero or the number to which the value can be parsed.
* @param value The value which shall be parsed.
* @param toFloat Indicates whether the number shall be parsed to a float.
*/
function parseToZeroOrNumber(value, toFloat) {
var num = toFloat ? parseFloat(value) : parseInt(value, 10);
return isNaN(num) ? 0 : num;
}
/**
* Gets several information of the textarea and returns them as a object or undefined if the browser doesn't support it.
* @returns {{cursorRow: Number, cursorCol, rows: Number, cols: number, wRow: number, pos: number, max : number}} or undefined if not supported.
*/
function getTextareaInfo() {
//read needed values
var textareaCursorPosition = _targetElementNative.selectionStart;
if (textareaCursorPosition === undefined)
return;
var textareaValue = _targetElement.val();
var textareaLength = textareaValue[LEXICON.l];
var textareaRowSplit = textareaValue.split('\n');
var textareaLastRow = textareaRowSplit[LEXICON.l];
var textareaCurrentCursorRowSplit = textareaValue.substr(0, textareaCursorPosition).split('\n');
var widestRow = 0;
var textareaLastCol = 0;
var cursorRow = textareaCurrentCursorRowSplit[LEXICON.l];
var cursorCol = textareaCurrentCursorRowSplit[textareaCurrentCursorRowSplit[LEXICON.l] - 1][LEXICON.l];
var rowCols;
var i;
//get widest Row and the last column of the textarea
for (i = 0; i < textareaRowSplit[LEXICON.l]; i++) {
rowCols = textareaRowSplit[i][LEXICON.l];
if (rowCols > textareaLastCol) {
widestRow = i + 1;
textareaLastCol = rowCols;
}
}
return {
_cursorRow: cursorRow, //cursorRow
_cursorColumn: cursorCol, //cursorCol
_rows: textareaLastRow, //rows
_columns: textareaLastCol, //cols
_widestRow: widestRow, //wRow
_cursorPosition: textareaCursorPosition, //pos
_cursorMax: textareaLength //max
};
}
/**
* Determines whether native overlay scrollbars are active.
* @returns {boolean} True if native overlay scrollbars are active, false otherwise.
*/
function nativeOverlayScrollbarsAreActive() {
return (_ignoreOverlayScrollbarHidingCache && (_nativeScrollbarIsOverlaid.x && _nativeScrollbarIsOverlaid.y));
}
/**
* Gets the element which is used to measure the content size.
* @returns {*} TextareaCover if target element is textarea else the ContentElement.
*/
function getContentMeasureElement() {
return _isTextarea ? _textareaCoverElement[0] : _contentElementNative;
}
/**
* Generates a string which represents a HTML div with the given classes or attributes.
* @param classesOrAttrs The class of the div as string or a object which represents the attributes of the div. (The class attribute can also be written as "className".)
* @param content The content of the div as string.
* @returns {string} The concated string which represents a HTML div and its content.
*/
function generateDiv(classesOrAttrs, content) {
return '<div ' + (classesOrAttrs ? type(classesOrAttrs) == TYPES.s ?
'class="' + classesOrAttrs + '"' :
(function () {
var key;
var attrs = _strEmpty;
if (FRAMEWORK.isPlainObject(classesOrAttrs)) {
for (key in classesOrAttrs)
attrs += (key === 'c' ? 'class' : key) + '="' + classesOrAttrs[key] + '" ';
}
return attrs;
})() :
_strEmpty) +
'>' +
(content || _strEmpty) +
'</div>';
}
/**
* Selects or generates a div with the given class attribute.
* @param className The class names (divided by spaces) of the div which shall be selected or generated.
* @param selectParentOrOnlyChildren The parent element from which of the element shall be selected. (if undefined or boolean its hostElement)
* If its a boolean it decides whether only the children of the host element shall be selected.
* @returns {*} The generated or selected element.
*/
function selectOrGenerateDivByClass(className, selectParentOrOnlyChildren) {
var onlyChildren = type(selectParentOrOnlyChildren) == TYPES.b;
var selectParent = onlyChildren ? _hostElement : (selectParentOrOnlyChildren || _hostElement);
return (_domExists && !selectParent[LEXICON.l])
? null
: _domExists
? selectParent[onlyChildren ? 'children' : 'find'](_strDot + className.replace(/\s/g, _strDot)).eq(0)
: FRAMEWORK(generateDiv(className))
}
/**
* Gets the value of the given property from the given object.
* @param obj The object from which the property value shall be got.
* @param path The property of which the value shall be got.
* @returns {*} Returns the value of the searched property or undefined of the property wasn't found.
*/
function getObjectPropVal(obj, path) {
var splits = path.split(_strDot);
var i = 0;
var val;
for (; i < splits.length; i++) {
if (!obj[LEXICON.hOP](splits[i]))
return;
val = obj[splits[i]];
if (i < splits.length && type(val) == TYPES.o)
obj = val;
}
return val;
}
/**
* Sets the value of the given property from the given object.
* @param obj The object from which the property value shall be set.
* @param path The property of which the value shall be set.
* @param val The value of the property which shall be set.
*/
function setObjectPropVal(obj, path, val) {
var splits = path.split(_strDot);
var splitsLength = splits.length;
var i = 0;
var extendObj = {};
var extendObjRoot = extendObj;
for (; i < splitsLength; i++)
extendObj = extendObj[splits[i]] = i + 1 < splitsLength ? {} : val;
FRAMEWORK.extend(obj, extendObjRoot, true);
}
//==== Utils Cache ====//
/**
* Compares two values or objects and returns true if they aren't equal.
* @param current The first value or object which shall be compared.
* @param cache The second value or object which shall be compared.
* @param force If true the returned value is always true.
* @returns {boolean} True if both values or objects aren't equal or force is true, false otherwise.
*/
function checkCache(current, cache, force) {
if (force)
return force;
if (type(current) == TYPES.o && type(cache) == TYPES.o) {
for (var prop in current) {
if (prop !== 'c') {
if (current[LEXICON.hOP](prop) && cache[LEXICON.hOP](prop)) {
if (checkCache(current[prop], cache[prop]))
return true;
}
else {
return true;
}
}
}
}
else {
return current !== cache;
}
return false;
}
//==== Shortcuts ====//
/**
* jQuery extend method shortcut with a appended "true" as first argument.
*/
function extendDeep() {
return FRAMEWORK.extend.apply(this, [true].concat([].slice.call(arguments)));
}
/**
* jQuery addClass method shortcut.
*/
function addClass(el, classes) {
return _frameworkProto.addClass.call(el, classes);
}
/**
* jQuery removeClass method shortcut.
*/
function removeClass(el, classes) {
return _frameworkProto.removeClass.call(el, classes);
}
/**
* jQuery remove method shortcut.
*/
function remove(el) {
return _frameworkProto.remove.call(el);
}
/**
* Finds the first child element with the given selector of the given element.
* @param el The root element from which the selector shall be valid.
* @param selector The selector of the searched element.
* @returns {*} The first element which is a child of the given element and matches the givens selector.
*/
function findFirst(el, selector) {
return _frameworkProto.find.call(el, selector).eq(0);
}
//==== API ====//
/**
* Puts the instance to sleep. It wont respond to any changes in the DOM and won't update. Scrollbar Interactivity is also disabled as well as the resize handle.
* This behavior can be reset by calling the update method.
*/
_base.sleep = function () {
_sleeping = true;
};
/**
* Updates the plugin and DOM to the current options.
* This method should only be called if a update is 100% required.
* @param force True if every property shall be updated and the cache shall be ignored.
* !INTERNAL USAGE! : force can be a string "auto", "sync" or "zoom" too
* if "auto" then before a real update the content size and host element attributes gets checked, and if they changed only then the update method will be called.
* if "sync" then the async update process (MutationObserver or UpdateLoop) gets synchronized and a corresponding update takes place if one was needed due to pending changes.
* if "zoom" then a update takes place where it's assumed that content and host size changed
* @returns {boolean|undefined}
* If force is "sync" then a boolean is returned which indicates whether a update was needed due to pending changes.
* If force is "auto" then a boolean is returned whether a update was needed due to attribute or size changes.
* undefined otherwise.
*/
_base.update = function (force) {
if (_destroyed)
return;
var attrsChanged;
var contentSizeC;
var isString = type(force) == TYPES.s;
var imgElementSelector = 'img';
var imgElementLoadEvent = 'load';
var doUpdateAuto;
var mutHost;
var mutContent;
if (isString) {
if (force === _strAuto) {
attrsChanged = meaningfulAttrsChanged();
contentSizeC = updateAutoContentSizeChanged();
doUpdateAuto = attrsChanged || contentSizeC;
if (doUpdateAuto) {
update({
_contentSizeChanged: contentSizeC,
_changedOptions: _initialized ? undefined : _currentPreparedOptions
});
}
}
else if (force === _strSync) {
if (_mutationObserversConnected) {
mutHost = _mutationObserverHostCallback(_mutationObserverHost.takeRecords());
mutContent = _mutationObserverContentCallback(_mutationObserverContent.takeRecords());
}
else {
mutHost = _base.update(_strAuto);
}
}
else if (force === 'zoom') {
update({
_hostSizeChanged: true,
_contentSizeChanged: true
});
}
}
else {
force = _sleeping || force;
_sleeping = false;
if (!_base.update(_strSync) || force)
update({ _force: force });
}
if (!_isTextarea) {
_contentElement.find(imgElementSelector).each(function (i, el) {
var index = COMPATIBILITY.inA(el, _imgs);
if (index === -1)
FRAMEWORK(el).off(imgElementLoadEvent, imgOnLoad).on(imgElementLoadEvent, imgOnLoad);
});
}
return doUpdateAuto || mutHost || mutContent;
};
/**
Gets or sets the current options. The update method will be called automatically if new options were set.
* @param newOptions If new options are given, then the new options will be set, if new options aren't given (undefined or a not a plain object) then the current options will be returned.
* @param value If new options is a property path string, then this value will be used to set the option to which the property path string leads.
* @returns {*}
*/
_base.options = function (newOptions, value) {
var option = {};
var changedOps;
//return current options if newOptions are undefined or empty
if (FRAMEWORK.isEmptyObject(newOptions) || !FRAMEWORK.isPlainObject(newOptions)) {
if (type(newOptions) == TYPES.s) {
if (arguments.length > 1) {
setObjectPropVal(option, newOptions, value);
changedOps = setOptions(option);
}
else
return getObjectPropVal(_currentOptions, newOptions);
}
else
return _currentOptions;
}
else {
changedOps = setOptions(newOptions);
}
if (!FRAMEWORK.isEmptyObject(changedOps)) {
update({ _changedOptions: changedOps });
}
};
/**
* Restore the DOM, disconnects all observers, remove all resize observers and put the instance to sleep.
*/
_base.destroy = function () {
if (_destroyed)
return;
//remove this instance from auto update loop
autoUpdateLoop.remove(_base);
//disconnect all mutation observers
disconnectMutationObservers();
//remove all resize observers
setupResizeObserver(_sizeObserverElement);
setupResizeObserver(_sizeAutoObserverElement);
//remove all extensions
for (var extName in _extensions)
_base.removeExt(extName);
//remove all 'destroy' events
while (_destroyEvents[LEXICON.l] > 0)
_destroyEvents.pop()();
//remove all events from host element
setupHostMouseTouchEvents(true);
//remove all helper / detection elements
if (_contentGlueElement)
remove(_contentGlueElement);
if (_contentArrangeElement)
remove(_contentArrangeElement);
if (_sizeAutoObserverAdded)
remove(_sizeAutoObserverElement);
//remove all generated DOM
setupScrollbarsDOM(true);
setupScrollbarCornerDOM(true);
setupStructureDOM(true);
//remove all generated image load events
for (var i = 0; i < _imgs[LEXICON.l]; i++)
FRAMEWORK(_imgs[i]).off('load', imgOnLoad);
_imgs = undefined;
_destroyed = true;
_sleeping = true;
//remove this instance from the instances list
INSTANCES(pluginTargetElement, 0);
dispatchCallback('onDestroyed');
//remove all properties and methods
//for (var property in _base)
// delete _base[property];
//_base = undefined;
};
/**
* Scrolls to a given position or element.
* @param coordinates
* 1. Can be "coordinates" which looks like:
* { x : ?, y : ? } OR Object with x and y properties
* { left : ?, top : ? } OR Object with left and top properties
* { l : ?, t : ? } OR Object with l and t properties
* [ ?, ? ] OR Array where the first two element are the coordinates (first is x, second is y)
* ? A single value which stays for both axis
* A value can be a number, a string or a calculation.
*
* Operators:
* [NONE] The current scroll will be overwritten by the value.
* '+=' The value will be added to the current scroll offset
* '-=' The value will be subtracted from the current scroll offset
* '*=' The current scroll wil be multiplicated by the value.
* '/=' The current scroll wil be divided by the value.
*
* Units:
* [NONE] The value is the final scroll amount. final = (value * 1)
* 'px' Same as none
* '%' The value is dependent on the current scroll value. final = ((currentScrollValue / 100) * value)
* 'vw' The value is multiplicated by the viewport width. final = (value * viewportWidth)
* 'vh' The value is multiplicated by the viewport height. final = (value * viewportHeight)
*
* example final values:
* 200, '200px', '50%', '1vw', '1vh', '+=200', '/=1vw', '*=2px', '-=5vh', '+=33%', '+= 50% - 2px', '-= 1vw - 50%'
*
* 2. Can be a HTML or jQuery element:
* The final scroll offset is the offset (without margin) of the given HTML / jQuery element.
*
* 3. Can be a object with a HTML or jQuery element with additional settings:
* {
* el : [HTMLElement, jQuery element], MUST be specified, else this object isn't valid.
* scroll : [string, array, object], Default value is 'always'.
* block : [string, array, object], Default value is 'begin'.
* margin : [number, boolean, array, object] Default value is false.
* }
*
* Possible scroll settings are:
* 'always' Scrolls always.
* 'ifneeded' Scrolls only if the element isnt fully in view.
* 'never' Scrolls never.
*
* Possible block settings are:
* 'begin' Both axis shall be docked to the "begin" edge. - The element will be docked to the top and left edge of the viewport.
* 'end' Both axis shall be docked to the "end" edge. - The element will be docked to the bottom and right edge of the viewport. (If direction is RTL to the bottom and left edge.)
* 'center' Both axis shall be docked to "center". - The element will be centered in the viewport.
* 'nearest' The element will be docked to the nearest edge(s).
*
* Possible margin settings are: -- The actual margin of the element wont be affect, this option affects only the final scroll offset.
* [BOOLEAN] If true the css margin of the element will be used, if false no margin will be used.
* [NUMBER] The margin will be used for all edges.
*
* @param duration The duration of the scroll animation, OR a jQuery animation configuration object.
* @param easing The animation easing.
* @param complete The animation complete callback.
* @returns {{
* position: {x: number, y: number},
* ratio: {x: number, y: number},
* max: {x: number, y: number},
* handleOffset: {x: number, y: number},
* handleLength: {x: number, y: number},
* handleLengthRatio: {x: number, y: number}, t
* rackLength: {x: number, y: number},
* isRTL: boolean,
* isRTLNormalized: boolean
* }}
*/
_base.scroll = function (coordinates, duration, easing, complete) {
if (arguments.length === 0 || coordinates === undefined) {
var infoX = _scrollHorizontalInfo;
var infoY = _scrollVerticalInfo;
var normalizeInvert = _normalizeRTLCache && _isRTL && _rtlScrollBehavior.i;
var normalizeNegate = _normalizeRTLCache && _isRTL && _rtlScrollBehavior.n;
var scrollX = infoX._currentScroll;
var scrollXRatio = infoX._currentScrollRatio;
var maxScrollX = infoX._maxScroll;
scrollXRatio = normalizeInvert ? 1 - scrollXRatio : scrollXRatio;
scrollX = normalizeInvert ? maxScrollX - scrollX : scrollX;
scrollX *= normalizeNegate ? -1 : 1;
maxScrollX *= normalizeNegate ? -1 : 1;
return {
position: {
x: scrollX,
y: infoY._currentScroll
},
ratio: {
x: scrollXRatio,
y: infoY._currentScrollRatio
},
max: {
x: maxScrollX,
y: infoY._maxScroll
},
handleOffset: {
x: infoX._handleOffset,
y: infoY._handleOffset
},
handleLength: {
x: infoX._handleLength,
y: infoY._handleLength
},
handleLengthRatio: {
x: infoX._handleLengthRatio,
y: infoY._handleLengthRatio
},
trackLength: {
x: infoX._trackLength,
y: infoY._trackLength
},
snappedHandleOffset: {
x: infoX._snappedHandleOffset,
y: infoY._snappedHandleOffset
},
isRTL: _isRTL,
isRTLNormalized: _normalizeRTLCache
};
}
_base.update(_strSync);
var normalizeRTL = _normalizeRTLCache;
var coordinatesXAxisProps = [_strX, _strLeft, 'l'];
var coordinatesYAxisProps = [_strY, _strTop, 't'];
var coordinatesOperators = ['+=', '-=', '*=', '/='];
var durationIsObject = type(duration) == TYPES.o;
var completeCallback = durationIsObject ? duration.complete : complete;
var i;
var finalScroll = {};
var specialEasing = {};
var doScrollLeft;
var doScrollTop;
var animationOptions;
var strEnd = 'end';
var strBegin = 'begin';
var strCenter = 'center';
var strNearest = 'nearest';
var strAlways = 'always';
var strNever = 'never';
var strIfNeeded = 'ifneeded';
var strLength = LEXICON.l;
var settingsAxis;
var settingsScroll;
var settingsBlock;
var settingsMargin;
var finalElement;
var elementObjSettingsAxisValues = [_strX, _strY, 'xy', 'yx'];
var elementObjSettingsBlockValues = [strBegin, strEnd, strCenter, strNearest];
var elementObjSettingsScrollValues = [strAlways, strNever, strIfNeeded];
var coordinatesIsElementObj = coordinates[LEXICON.hOP]('el');
var possibleElement = coordinatesIsElementObj ? coordinates.el : coordinates;
var possibleElementIsJQuery = possibleElement instanceof FRAMEWORK || JQUERY ? possibleElement instanceof JQUERY : false;
var possibleElementIsHTMLElement = possibleElementIsJQuery ? false : isHTMLElement(possibleElement);
var updateScrollbarInfos = function () {
if (doScrollLeft)
refreshScrollbarHandleOffset(true);
if (doScrollTop)
refreshScrollbarHandleOffset(false);
};
var proxyCompleteCallback = type(completeCallback) != TYPES.f ? undefined : function () {
updateScrollbarInfos();
completeCallback();
};
function checkSettingsStringValue(currValue, allowedValues) {
for (i = 0; i < allowedValues[strLength]; i++) {
if (currValue === allowedValues[i])
return true;
}
return false;
}
function getRawScroll(isX, coordinates) {
var coordinateProps = isX ? coordinatesXAxisProps : coordinatesYAxisProps;
coordinates = type(coordinates) == TYPES.s || type(coordinates) == TYPES.n ? [coordinates, coordinates] : coordinates;
if (type(coordinates) == TYPES.a)
return isX ? coordinates[0] : coordinates[1];
else if (type(coordinates) == TYPES.o) {
//decides RTL normalization "hack" with .n
//normalizeRTL = type(coordinates.n) == TYPES.b ? coordinates.n : normalizeRTL;
for (i = 0; i < coordinateProps[strLength]; i++)
if (coordinateProps[i] in coordinates)
return coordinates[coordinateProps[i]];
}
}
function getFinalScroll(isX, rawScroll) {
var isString = type(rawScroll) == TYPES.s;
var operator;
var amount;
var scrollInfo = isX ? _scrollHorizontalInfo : _scrollVerticalInfo;
var currScroll = scrollInfo._currentScroll;
var maxScroll = scrollInfo._maxScroll;
var mult = ' * ';
var finalValue;
var isRTLisX = _isRTL && isX;
var normalizeShortcuts = isRTLisX && _rtlScrollBehavior.n && !normalizeRTL;
var strReplace = 'replace';
var evalFunc = eval;
var possibleOperator;
if (isString) {
//check operator
if (rawScroll[strLength] > 2) {
possibleOperator = rawScroll.substr(0, 2);
if (inArray(possibleOperator, coordinatesOperators) > -1)
operator = possibleOperator;
}
//calculate units and shortcuts
rawScroll = operator ? rawScroll.substr(2) : rawScroll;
rawScroll = rawScroll
[strReplace](/min/g, 0) //'min' = 0%
[strReplace](/</g, 0) //'<' = 0%
[strReplace](/max/g, (normalizeShortcuts ? '-' : _strEmpty) + _strHundredPercent) //'max' = 100%
[strReplace](/>/g, (normalizeShortcuts ? '-' : _strEmpty) + _strHundredPercent) //'>' = 100%
[strReplace](/px/g, _strEmpty)
[strReplace](/%/g, mult + (maxScroll * (isRTLisX && _rtlScrollBehavior.n ? -1 : 1) / 100.0))
[strReplace](/vw/g, mult + _viewportSize.w)
[strReplace](/vh/g, mult + _viewportSize.h);
amount = parseToZeroOrNumber(isNaN(rawScroll) ? parseToZeroOrNumber(evalFunc(rawScroll), true).toFixed() : rawScroll);
}
else {
amount = rawScroll;
}
if (amount !== undefined && !isNaN(amount) && type(amount) == TYPES.n) {
var normalizeIsRTLisX = normalizeRTL && isRTLisX;
var operatorCurrScroll = currScroll * (normalizeIsRTLisX && _rtlScrollBehavior.n ? -1 : 1);
var invert = normalizeIsRTLisX && _rtlScrollBehavior.i;
var negate = normalizeIsRTLisX && _rtlScrollBehavior.n;
operatorCurrScroll = invert ? (maxScroll - operatorCurrScroll) : operatorCurrScroll;
switch (operator) {
case '+=':
finalValue = operatorCurrScroll + amount;
break;
case '-=':
finalValue = operatorCurrScroll - amount;
break;
case '*=':
finalValue = operatorCurrScroll * amount;
break;
case '/=':
finalValue = operatorCurrScroll / amount;
break;
default:
finalValue = amount;
break;
}
finalValue = invert ? maxScroll - finalValue : finalValue;
finalValue *= negate ? -1 : 1;
finalValue = isRTLisX && _rtlScrollBehavior.n ? MATH.min(0, MATH.max(maxScroll, finalValue)) : MATH.max(0, MATH.min(maxScroll, finalValue));
}
return finalValue === currScroll ? undefined : finalValue;
}
function getPerAxisValue(value, valueInternalType, defaultValue, allowedValues) {
var resultDefault = [defaultValue, defaultValue];
var valueType = type(value);
var valueArrLength;
var valueArrItem;
//value can be [ string, or array of two strings ]
if (valueType == valueInternalType) {
value = [value, value];
}
else if (valueType == TYPES.a) {
valueArrLength = value[strLength];
if (valueArrLength > 2 || valueArrLength < 1)
value = resultDefault;
else {
if (valueArrLength === 1)
value[1] = defaultValue;
for (i = 0; i < valueArrLength; i++) {
valueArrItem = value[i];
if (type(valueArrItem) != valueInternalType || !checkSettingsStringValue(valueArrItem, allowedValues)) {
value = resultDefault;
break;
}
}
}
}
else if (valueType == TYPES.o)
value = [value[_strX] || defaultValue, value[_strY] || defaultValue];
else
value = resultDefault;
return { x: value[0], y: value[1] };
}
function generateMargin(marginTopRightBottomLeftArray) {
var result = [];
var currValue;
var currValueType;
var valueDirections = [_strTop, _strRight, _strBottom, _strLeft];
for (i = 0; i < marginTopRightBottomLeftArray[strLength]; i++) {
if (i === valueDirections[strLength])
break;
currValue = marginTopRightBottomLeftArray[i];
currValueType = type(currValue);
if (currValueType == TYPES.b)
result.push(currValue ? parseToZeroOrNumber(finalElement.css(_strMarginMinus + valueDirections[i])) : 0);
else
result.push(currValueType == TYPES.n ? currValue : 0);
}
return result;
}
if (possibleElementIsJQuery || possibleElementIsHTMLElement) {
//get settings
var margin = coordinatesIsElementObj ? coordinates.margin : 0;
var axis = coordinatesIsElementObj ? coordinates.axis : 0;
var scroll = coordinatesIsElementObj ? coordinates.scroll : 0;
var block = coordinatesIsElementObj ? coordinates.block : 0;
var marginDefault = [0, 0, 0, 0];
var marginType = type(margin);
var marginLength;
finalElement = possibleElementIsJQuery ? possibleElement : FRAMEWORK(possibleElement);
if (finalElement[strLength] > 0) {
//margin can be [ boolean, number, array of 2, array of 4, object ]
if (marginType == TYPES.n || marginType == TYPES.b)
margin = generateMargin([margin, margin, margin, margin]);
else if (marginType == TYPES.a) {
marginLength = margin[strLength];
if (marginLength === 2)
margin = generateMargin([margin[0], margin[1], margin[0], margin[1]]);
else if (marginLength >= 4)
margin = generateMargin(margin);
else
margin = marginDefault;
}
else if (marginType == TYPES.o)
margin = generateMargin([margin[_strTop], margin[_strRight], margin[_strBottom], margin[_strLeft]]);
else
margin = marginDefault;
//block = type(block) === TYPES.b ? block ? [ strNearest, strBegin ] : [ strNearest, strEnd ] : block;
settingsAxis = checkSettingsStringValue(axis, elementObjSettingsAxisValues) ? axis : 'xy';
settingsScroll = getPerAxisValue(scroll, TYPES.s, strAlways, elementObjSettingsScrollValues);
settingsBlock = getPerAxisValue(block, TYPES.s, strBegin, elementObjSettingsBlockValues);
settingsMargin = margin;
var viewportScroll = {
l: _scrollHorizontalInfo._currentScroll,
t: _scrollVerticalInfo._currentScroll
};
// use padding element instead of viewport element because padding element has never padding, margin or position applied.
var viewportOffset = _paddingElement.offset();
//get coordinates
var elementOffset = finalElement.offset();
var doNotScroll = {
x: settingsScroll.x == strNever || settingsAxis == _strY,
y: settingsScroll.y == strNever || settingsAxis == _strX
};
elementOffset[_strTop] -= settingsMargin[0];
elementOffset[_strLeft] -= settingsMargin[3];
var elementScrollCoordinates = {
x: MATH.round(elementOffset[_strLeft] - viewportOffset[_strLeft] + viewportScroll.l),
y: MATH.round(elementOffset[_strTop] - viewportOffset[_strTop] + viewportScroll.t)
};
if (_isRTL) {
if (!_rtlScrollBehavior.n && !_rtlScrollBehavior.i)
elementScrollCoordinates.x = MATH.round(viewportOffset[_strLeft] - elementOffset[_strLeft] + viewportScroll.l);
if (_rtlScrollBehavior.n && normalizeRTL)
elementScrollCoordinates.x *= -1;
if (_rtlScrollBehavior.i && normalizeRTL)
elementScrollCoordinates.x = MATH.round(viewportOffset[_strLeft] - elementOffset[_strLeft] + (_scrollHorizontalInfo._maxScroll - viewportScroll.l));
}
//measuring is required
if (settingsBlock.x != strBegin || settingsBlock.y != strBegin || settingsScroll.x == strIfNeeded || settingsScroll.y == strIfNeeded || _isRTL) {
var measuringElm = finalElement[0];
var rawElementSize = _supportTransform ? measuringElm[LEXICON.bCR]() : {
width: measuringElm[LEXICON.oW],
height: measuringElm[LEXICON.oH]
};
var elementSize = {
w: rawElementSize[_strWidth] + settingsMargin[3] + settingsMargin[1],
h: rawElementSize[_strHeight] + settingsMargin[0] + settingsMargin[2]
};
var finalizeBlock = function (isX) {
var vars = getScrollbarVars(isX);
var wh = vars._w_h;
var lt = vars._left_top;
var xy = vars._x_y;
var blockIsEnd = settingsBlock[xy] == (isX ? _isRTL ? strBegin : strEnd : strEnd);
var blockIsCenter = settingsBlock[xy] == strCenter;
var blockIsNearest = settingsBlock[xy] == strNearest;
var scrollNever = settingsScroll[xy] == strNever;
var scrollIfNeeded = settingsScroll[xy] == strIfNeeded;
var vpSize = _viewportSize[wh];
var vpOffset = viewportOffset[lt];
var elSize = elementSize[wh];
var elOffset = elementOffset[lt];
var divide = blockIsCenter ? 2 : 1;
var elementCenterOffset = elOffset + (elSize / 2);
var viewportCenterOffset = vpOffset + (vpSize / 2);
var isInView =
elSize <= vpSize
&& elOffset >= vpOffset
&& elOffset + elSize <= vpOffset + vpSize;
if (scrollNever)
doNotScroll[xy] = true;
else if (!doNotScroll[xy]) {
if (blockIsNearest || scrollIfNeeded) {
doNotScroll[xy] = scrollIfNeeded ? isInView : false;
blockIsEnd = elSize < vpSize ? elementCenterOffset > viewportCenterOffset : elementCenterOffset < viewportCenterOffset;
}
elementScrollCoordinates[xy] -= blockIsEnd || blockIsCenter ? ((vpSize / divide) - (elSize / divide)) * (isX && _isRTL && normalizeRTL ? -1 : 1) : 0;
}
};
finalizeBlock(true);
finalizeBlock(false);
}
if (doNotScroll.y)
delete elementScrollCoordinates.y;
if (doNotScroll.x)
delete elementScrollCoordinates.x;
coordinates = elementScrollCoordinates;
}
}
finalScroll[_strScrollLeft] = getFinalScroll(true, getRawScroll(true, coordinates));
finalScroll[_strScrollTop] = getFinalScroll(false, getRawScroll(false, coordinates));
doScrollLeft = finalScroll[_strScrollLeft] !== undefined;
doScrollTop = finalScroll[_strScrollTop] !== undefined;
if ((doScrollLeft || doScrollTop) && (duration > 0 || durationIsObject)) {
if (durationIsObject) {
duration.complete = proxyCompleteCallback;
_viewportElement.animate(finalScroll, duration);
}
else {
animationOptions = {
duration: duration,
complete: proxyCompleteCallback
};
if (type(easing) == TYPES.a || FRAMEWORK.isPlainObject(easing)) {
specialEasing[_strScrollLeft] = easing[0] || easing.x;
specialEasing[_strScrollTop] = easing[1] || easing.y;
animationOptions.specialEasing = specialEasing;
}
else {
animationOptions.easing = easing;
}
_viewportElement.animate(finalScroll, animationOptions);
}
}
else {
if (doScrollLeft)
_viewportElement[_strScrollLeft](finalScroll[_strScrollLeft]);
if (doScrollTop)
_viewportElement[_strScrollTop](finalScroll[_strScrollTop]);
updateScrollbarInfos();
}
};
/**
* Stops all scroll animations.
* @returns {*} The current OverlayScrollbars instance (for chaining).
*/
_base.scrollStop = function (param1, param2, param3) {
_viewportElement.stop(param1, param2, param3);
return _base;
};
/**
* Returns all relevant elements.
* @param elementName The name of the element which shall be returned.
* @returns {{target: *, host: *, padding: *, viewport: *, content: *, scrollbarHorizontal: {scrollbar: *, track: *, handle: *}, scrollbarVertical: {scrollbar: *, track: *, handle: *}, scrollbarCorner: *} | *}
*/
_base.getElements = function (elementName) {
var obj = {
target: _targetElementNative,
host: _hostElementNative,
padding: _paddingElementNative,
viewport: _viewportElementNative,
content: _contentElementNative,
scrollbarHorizontal: {
scrollbar: _scrollbarHorizontalElement[0],
track: _scrollbarHorizontalTrackElement[0],
handle: _scrollbarHorizontalHandleElement[0]
},
scrollbarVertical: {
scrollbar: _scrollbarVerticalElement[0],
track: _scrollbarVerticalTrackElement[0],
handle: _scrollbarVerticalHandleElement[0]
},
scrollbarCorner: _scrollbarCornerElement[0]
};
return type(elementName) == TYPES.s ? getObjectPropVal(obj, elementName) : obj;
};
/**
* Returns a object which describes the current state of this instance.
* @param stateProperty A specific property from the state object which shall be returned.
* @returns {{widthAuto, heightAuto, overflowAmount, hideOverflow, hasOverflow, contentScrollSize, viewportSize, hostSize, autoUpdate} | *}
*/
_base.getState = function (stateProperty) {
function prepare(obj) {
if (!FRAMEWORK.isPlainObject(obj))
return obj;
var extended = extendDeep({}, obj);
var changePropertyName = function (from, to) {
if (extended[LEXICON.hOP](from)) {
extended[to] = extended[from];
delete extended[from];
}
};
changePropertyName('w', _strWidth); //change w to width
changePropertyName('h', _strHeight); //change h to height
delete extended.c; //delete c (the 'changed' prop)
return extended;
};
var obj = {
destroyed: !!prepare(_destroyed),
sleeping: !!prepare(_sleeping),
autoUpdate: prepare(!_mutationObserversConnected),
widthAuto: prepare(_widthAutoCache),
heightAuto: prepare(_heightAutoCache),
padding: prepare(_cssPaddingCache),
overflowAmount: prepare(_overflowAmountCache),
hideOverflow: prepare(_hideOverflowCache),
hasOverflow: prepare(_hasOverflowCache),
contentScrollSize: prepare(_contentScrollSizeCache),
viewportSize: prepare(_viewportSize),
hostSize: prepare(_hostSizeCache),
documentMixed: prepare(_documentMixed)
};
return type(stateProperty) == TYPES.s ? getObjectPropVal(obj, stateProperty) : obj;
};
/**
* Gets all or specific extension instance.
* @param extName The name of the extension from which the instance shall be got.
* @returns {{}} The instance of the extension with the given name or undefined if the instance couldn't be found.
*/
_base.ext = function (extName) {
var result;
var privateMethods = _extensionsPrivateMethods.split(' ');
var i = 0;
if (type(extName) == TYPES.s) {
if (_extensions[LEXICON.hOP](extName)) {
result = extendDeep({}, _extensions[extName]);
for (; i < privateMethods.length; i++)
delete result[privateMethods[i]];
}
}
else {
result = {};
for (i in _extensions)
result[i] = extendDeep({}, _base.ext(i));
}
return result;
};
/**
* Adds a extension to this instance.
* @param extName The name of the extension which shall be added.
* @param extensionOptions The extension options which shall be used.
* @returns {{}} The instance of the added extension or undefined if the extension couldn't be added properly.
*/
_base.addExt = function (extName, extensionOptions) {
var registeredExtensionObj = _plugin.extension(extName);
var instance;
var instanceAdded;
var instanceContract;
var contractResult;
var contractFulfilled = true;
if (registeredExtensionObj) {
if (!_extensions[LEXICON.hOP](extName)) {
instance = registeredExtensionObj.extensionFactory.call(_base,
extendDeep({}, registeredExtensionObj.defaultOptions),
FRAMEWORK,
COMPATIBILITY);
if (instance) {
instanceContract = instance.contract;
if (type(instanceContract) == TYPES.f) {
contractResult = instanceContract(window);
contractFulfilled = type(contractResult) == TYPES.b ? contractResult : contractFulfilled;
}
if (contractFulfilled) {
_extensions[extName] = instance;
instanceAdded = instance.added;
if (type(instanceAdded) == TYPES.f)
instanceAdded(extensionOptions);
return _base.ext(extName);
}
}
}
else
return _base.ext(extName);
}
else
console.warn("A extension with the name \"" + extName + "\" isn't registered.");
};
/**
* Removes a extension from this instance.
* @param extName The name of the extension which shall be removed.
* @returns {boolean} True if the extension was removed, false otherwise e.g. if the extension wasn't added before.
*/
_base.removeExt = function (extName) {
var instance = _extensions[extName];
var instanceRemoved;
if (instance) {
delete _extensions[extName];
instanceRemoved = instance.removed;
if (type(instanceRemoved) == TYPES.f)
instanceRemoved();
return true;
}
return false;
};
/**
* Constructs the plugin.
* @param targetElement The element to which the plugin shall be applied.
* @param options The initial options of the plugin.
* @param extensions The extension(s) which shall be added right after the initialization.
* @returns {boolean} True if the plugin was successfully initialized, false otherwise.
*/
function construct(targetElement, options, extensions) {
_defaultOptions = globals.defaultOptions;
_nativeScrollbarStyling = globals.nativeScrollbarStyling;
_nativeScrollbarSize = extendDeep({}, globals.nativeScrollbarSize);
_nativeScrollbarIsOverlaid = extendDeep({}, globals.nativeScrollbarIsOverlaid);
_overlayScrollbarDummySize = extendDeep({}, globals.overlayScrollbarDummySize);
_rtlScrollBehavior = extendDeep({}, globals.rtlScrollBehavior);
//parse & set options but don't update
setOptions(extendDeep({}, _defaultOptions, options));
_cssCalc = globals.cssCalc;
_msieVersion = globals.msie;
_autoUpdateRecommended = globals.autoUpdateRecommended;
_supportTransition = globals.supportTransition;
_supportTransform = globals.supportTransform;
_supportPassiveEvents = globals.supportPassiveEvents;
_supportResizeObserver = globals.supportResizeObserver;
_supportMutationObserver = globals.supportMutationObserver;
_restrictedMeasuring = globals.restrictedMeasuring;
_documentElement = FRAMEWORK(targetElement.ownerDocument);
_documentElementNative = _documentElement[0];
_windowElement = FRAMEWORK(_documentElementNative.defaultView || _documentElementNative.parentWindow);
_windowElementNative = _windowElement[0];
_htmlElement = findFirst(_documentElement, 'html');
_bodyElement = findFirst(_htmlElement, 'body');
_targetElement = FRAMEWORK(targetElement);
_targetElementNative = _targetElement[0];
_isTextarea = _targetElement.is('textarea');
_isBody = _targetElement.is('body');
_documentMixed = _documentElementNative !== document;
/* On a div Element The if checks only whether:
* - the targetElement has the class "os-host"
* - the targetElement has a a child with the class "os-padding"
*
* If that's the case, its assumed the DOM has already the following structure:
* (The ".os-host" element is the targetElement)
*
* <div class="os-host">
* <div class="os-resize-observer-host"></div>
* <div class="os-padding">
* <div class="os-viewport">
* <div class="os-content"></div>
* </div>
* </div>
* <div class="os-scrollbar os-scrollbar-horizontal ">
* <div class="os-scrollbar-track">
* <div class="os-scrollbar-handle"></div>
* </div>
* </div>
* <div class="os-scrollbar os-scrollbar-vertical">
* <div class="os-scrollbar-track">
* <div class="os-scrollbar-handle"></div>
* </div>
* </div>
* <div class="os-scrollbar-corner"></div>
* </div>
*
* =====================================================================================
*
* On a Textarea Element The if checks only whether:
* - the targetElement has the class "os-textarea"
* - the targetElement is inside a element with the class "os-content"
*
* If that's the case, its assumed the DOM has already the following structure:
* (The ".os-textarea" (textarea) element is the targetElement)
*
* <div class="os-host-textarea">
* <div class="os-resize-observer-host"></div>
* <div class="os-padding os-text-inherit">
* <div class="os-viewport os-text-inherit">
* <div class="os-content os-text-inherit">
* <div class="os-textarea-cover"></div>
* <textarea class="os-textarea os-text-inherit"></textarea>
* </div>
* </div>
* </div>
* <div class="os-scrollbar os-scrollbar-horizontal ">
* <div class="os-scrollbar-track">
* <div class="os-scrollbar-handle"></div>
* </div>
* </div>
* <div class="os-scrollbar os-scrollbar-vertical">
* <div class="os-scrollbar-track">
* <div class="os-scrollbar-handle"></div>
* </div>
* </div>
* <div class="os-scrollbar-corner"></div>
* </div>
*/
_domExists = _isTextarea
? _targetElement.hasClass(_classNameTextareaElement) && _targetElement.parent().hasClass(_classNameContentElement)
: _targetElement.hasClass(_classNameHostElement) && _targetElement.children(_strDot + _classNamePaddingElement)[LEXICON.l];
var initBodyScroll;
var bodyMouseTouchDownListener;
//check if the plugin hasn't to be initialized
if (_nativeScrollbarIsOverlaid.x && _nativeScrollbarIsOverlaid.y && !_currentPreparedOptions.nativeScrollbarsOverlaid.initialize) {
dispatchCallback('onInitializationWithdrawn');
if (_domExists) {
setupStructureDOM(true);
setupScrollbarsDOM(true);
setupScrollbarCornerDOM(true);
}
_destroyed = true;
_sleeping = true;
return _base;
}
if (_isBody) {
initBodyScroll = {};
initBodyScroll.l = MATH.max(_targetElement[_strScrollLeft](), _htmlElement[_strScrollLeft](), _windowElement[_strScrollLeft]());
initBodyScroll.t = MATH.max(_targetElement[_strScrollTop](), _htmlElement[_strScrollTop](), _windowElement[_strScrollTop]());
bodyMouseTouchDownListener = function () {
_viewportElement.removeAttr(LEXICON.ti);
setupResponsiveEventListener(_viewportElement, _strMouseTouchDownEvent, bodyMouseTouchDownListener, true, true);
}
}
//build OverlayScrollbars DOM
setupStructureDOM();
setupScrollbarsDOM();
setupScrollbarCornerDOM();
//create OverlayScrollbars events
setupStructureEvents();
setupScrollbarEvents(true);
setupScrollbarEvents(false);
setupScrollbarCornerEvents();
//create mutation observers
createMutationObservers();
//build resize observer for the host element
setupResizeObserver(_sizeObserverElement, hostOnResized);
if (_isBody) {
//apply the body scroll to handle it right in the update method
_viewportElement[_strScrollLeft](initBodyScroll.l)[_strScrollTop](initBodyScroll.t);
//set the focus on the viewport element so you dont have to click on the page to use keyboard keys (up / down / space) for scrolling
if (document.activeElement == targetElement && _viewportElementNative.focus) {
//set a tabindex to make the viewportElement focusable
_viewportElement.attr(LEXICON.ti, '-1');
_viewportElementNative.focus();
/* the tabindex has to be removed due to;
* If you set the tabindex attribute on an <div>, then its child content cannot be scrolled with the arrow keys unless you set tabindex on the content, too
* https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/tabindex
*/
setupResponsiveEventListener(_viewportElement, _strMouseTouchDownEvent, bodyMouseTouchDownListener, false, true);
}
}
//update for the first time & initialize cache
_base.update(_strAuto);
//the plugin is initialized now!
_initialized = true;
dispatchCallback('onInitialized');
//call all callbacks which would fire before the initialized was complete
each(_callbacksInitQeueue, function (index, value) { dispatchCallback(value.n, value.a); });
_callbacksInitQeueue = [];
//add extensions
if (type(extensions) == TYPES.s)
extensions = [extensions];
if (COMPATIBILITY.isA(extensions))
each(extensions, function (index, value) { _base.addExt(value); });
else if (FRAMEWORK.isPlainObject(extensions))
each(extensions, function (key, value) { _base.addExt(key, value); });
//add the transition class for transitions AFTER the first update & AFTER the applied extensions (for preventing unwanted transitions)
setTimeout(function () {
if (_supportTransition && !_destroyed)
addClass(_hostElement, _classNameHostTransition);
}, 333);
return _base;
}
if (_plugin.valid(construct(pluginTargetElement, options, extensions))) {
INSTANCES(pluginTargetElement, _base);
}
return _base;
}
/**
* Initializes a new OverlayScrollbarsInstance object or changes options if already initialized or returns the current instance.
* @param pluginTargetElements The elements to which the Plugin shall be initialized.
* @param options The custom options with which the plugin shall be initialized.
* @param extensions The extension(s) which shall be added right after initialization.
* @returns {*}
*/
_plugin = window[PLUGINNAME] = function (pluginTargetElements, options, extensions) {
if (arguments[LEXICON.l] === 0)
return this;
var arr = [];
var optsIsPlainObj = FRAMEWORK.isPlainObject(options);
var inst;
var result;
//pluginTargetElements is null or undefined
if (!pluginTargetElements)
return optsIsPlainObj || !options ? result : arr;
/*
pluginTargetElements will be converted to:
1. A jQueryElement Array
2. A HTMLElement Array
3. A Array with a single HTML Element
so pluginTargetElements is always a array.
*/
pluginTargetElements = pluginTargetElements[LEXICON.l] != undefined ? pluginTargetElements : [pluginTargetElements[0] || pluginTargetElements];
initOverlayScrollbarsStatics();
if (pluginTargetElements[LEXICON.l] > 0) {
if (optsIsPlainObj) {
FRAMEWORK.each(pluginTargetElements, function (i, v) {
inst = v;
if (inst !== undefined)
arr.push(OverlayScrollbarsInstance(inst, options, extensions, _pluginsGlobals, _pluginsAutoUpdateLoop));
});
}
else {
FRAMEWORK.each(pluginTargetElements, function (i, v) {
inst = INSTANCES(v);
if ((options === '!' && _plugin.valid(inst)) || (COMPATIBILITY.type(options) == TYPES.f && options(v, inst)))
arr.push(inst);
else if (options === undefined)
arr.push(inst);
});
}
result = arr[LEXICON.l] === 1 ? arr[0] : arr;
}
return result;
};
/**
* Returns a object which contains global information about the plugin and each instance of it.
* The returned object is just a copy, that means that changes to the returned object won't have any effect to the original object.
*/
_plugin.globals = function () {
initOverlayScrollbarsStatics();
var globals = FRAMEWORK.extend(true, {}, _pluginsGlobals);
delete globals['msie'];
return globals;
};
/**
* Gets or Sets the default options for each new plugin initialization.
* @param newDefaultOptions The object with which the default options shall be extended.
*/
_plugin.defaultOptions = function (newDefaultOptions) {
initOverlayScrollbarsStatics();
var currDefaultOptions = _pluginsGlobals.defaultOptions;
if (newDefaultOptions === undefined)
return FRAMEWORK.extend(true, {}, currDefaultOptions);
//set the new default options
_pluginsGlobals.defaultOptions = FRAMEWORK.extend(true, {}, currDefaultOptions, _pluginsOptions._validate(newDefaultOptions, _pluginsOptions._template, true, currDefaultOptions)._default);
};
/**
* Checks whether the passed instance is a non-destroyed OverlayScrollbars instance.
* @param osInstance The potential OverlayScrollbars instance which shall be checked.
* @returns {boolean} True if the passed value is a non-destroyed OverlayScrollbars instance, false otherwise.
*/
_plugin.valid = function (osInstance) {
return osInstance instanceof _plugin && !osInstance.getState().destroyed;
};
/**
* Registers, Unregisters or returns a extension.
* Register: Pass the name and the extension. (defaultOptions is optional)
* Unregister: Pass the name and anything except a function as extension parameter.
* Get extension: Pass the name of the extension which shall be got.
* Get all extensions: Pass no arguments.
* @param extensionName The name of the extension which shall be registered, unregistered or returned.
* @param extension A function which generates the instance of the extension or anything other to remove a already registered extension.
* @param defaultOptions The default options which shall be used for the registered extension.
*/
_plugin.extension = function (extensionName, extension, defaultOptions) {
var extNameTypeString = COMPATIBILITY.type(extensionName) == TYPES.s;
var argLen = arguments[LEXICON.l];
var i = 0;
if (argLen < 1 || !extNameTypeString) {
//return a copy of all extension objects
return FRAMEWORK.extend(true, { length: _pluginsExtensions[LEXICON.l] }, _pluginsExtensions);
}
else if (extNameTypeString) {
if (COMPATIBILITY.type(extension) == TYPES.f) {
//register extension
_pluginsExtensions.push({
name: extensionName,
extensionFactory: extension,
defaultOptions: defaultOptions
});
}
else {
for (; i < _pluginsExtensions[LEXICON.l]; i++) {
if (_pluginsExtensions[i].name === extensionName) {
if (argLen > 1)
_pluginsExtensions.splice(i, 1); //remove extension
else
return FRAMEWORK.extend(true, {}, _pluginsExtensions[i]); //return extension with the given name
}
}
}
}
};
return _plugin;
})();
if (JQUERY && JQUERY.fn) {
/**
* The jQuery initialization interface.
* @param options The initial options for the construction of the plugin. To initialize the plugin, this option has to be a object! If it isn't a object, the instance(s) are returned and the plugin wont be initialized.
* @param extensions The extension(s) which shall be added right after initialization.
* @returns {*} After initialization it returns the jQuery element array, else it returns the instance(s) of the elements which are selected.
*/
JQUERY.fn.overlayScrollbars = function (options, extensions) {
var _elements = this;
if (JQUERY.isPlainObject(options)) {
JQUERY.each(_elements, function () { PLUGIN(this, options, extensions); });
return _elements;
}
else
return PLUGIN(_elements, options);
};
}
return PLUGIN;
}
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