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/*!
*
* Jquery Mapael - Dynamic maps jQuery plugin (based on raphael.js)
* Requires jQuery, raphael.js and jquery.mousewheel
*
* Version: 2.2.0
*
* Copyright (c) 2017 Vincent Brouté (https://www.vincentbroute.fr/mapael)
* Licensed under the MIT license (http://www.opensource.org/licenses/mit-license.php).
*
* Thanks to Indigo744
*
*/
(function (factory) {
if (typeof exports === 'object') {
// CommonJS
module.exports = factory(require('jquery'), require('raphael'), require('jquery-mousewheel'));
} else if (typeof define === 'function' && define.amd) {
// AMD. Register as an anonymous module.
define(['jquery', 'raphael', 'mousewheel'], factory);
} else {
// Browser globals
factory(jQuery, Raphael, jQuery.fn.mousewheel);
}
}(function ($, Raphael, mousewheel, undefined) {
"use strict";
// The plugin name (used on several places)
var pluginName = "mapael";
// Version number of jQuery Mapael. See http://semver.org/ for more information.
var version = "2.2.0";
/*
* Mapael constructor
* Init instance vars and call init()
* @param container the DOM element on which to apply the plugin
* @param options the complete options to use
*/
var Mapael = function (container, options) {
var self = this;
// the global container (DOM element object)
self.container = container;
// the global container (jQuery object)
self.$container = $(container);
// the global options
self.options = self.extendDefaultOptions(options);
// zoom TimeOut handler (used to set and clear)
self.zoomTO = 0;
// zoom center coordinate (set at touchstart)
self.zoomCenterX = 0;
self.zoomCenterY = 0;
// Zoom pinch (set at touchstart and touchmove)
self.previousPinchDist = 0;
// Zoom data
self.zoomData = {
zoomLevel: 0,
zoomX: 0,
zoomY: 0,
panX: 0,
panY: 0
};
self.currentViewBox = {
x: 0, y: 0, w: 0, h: 0
};
// Panning: tell if panning action is in progress
self.panning = false;
// Animate view box
self.zoomAnimID = null; // Interval handler (used to set and clear)
self.zoomAnimStartTime = null; // Animation start time
self.zoomAnimCVBTarget = null; // Current ViewBox target
// Map subcontainer jQuery object
self.$map = $("." + self.options.map.cssClass, self.container);
// Save initial HTML content (used by destroy method)
self.initialMapHTMLContent = self.$map.html();
// The tooltip jQuery object
self.$tooltip = {};
// The paper Raphael object
self.paper = {};
// The areas object list
self.areas = {};
// The plots object list
self.plots = {};
// The links object list
self.links = {};
// The legends list
self.legends = {};
// The map configuration object (taken from map file)
self.mapConf = {};
// Holds all custom event handlers
self.customEventHandlers = {};
// Let's start the initialization
self.init();
};
/*
* Mapael Prototype
* Defines all methods and properties needed by Mapael
* Each mapael object inherits their properties and methods from this prototype
*/
Mapael.prototype = {
/* Filtering TimeOut value in ms
* Used for mouseover trigger over elements */
MouseOverFilteringTO: 120,
/* Filtering TimeOut value in ms
* Used for afterPanning trigger when panning */
panningFilteringTO: 150,
/* Filtering TimeOut value in ms
* Used for mouseup/touchend trigger when panning */
panningEndFilteringTO: 50,
/* Filtering TimeOut value in ms
* Used for afterZoom trigger when zooming */
zoomFilteringTO: 150,
/* Filtering TimeOut value in ms
* Used for when resizing window */
resizeFilteringTO: 150,
/*
* Initialize the plugin
* Called by the constructor
*/
init: function () {
var self = this;
// Init check for class existence
if (self.options.map.cssClass === "" || $("." + self.options.map.cssClass, self.container).length === 0) {
throw new Error("The map class `" + self.options.map.cssClass + "` doesn't exists");
}
// Create the tooltip container
self.$tooltip = $("<div>").addClass(self.options.map.tooltip.cssClass).css("display", "none");
// Get the map container, empty it then append tooltip
self.$map.empty().append(self.$tooltip);
// Get the map from $.mapael or $.fn.mapael (backward compatibility)
if ($[pluginName] && $[pluginName].maps && $[pluginName].maps[self.options.map.name]) {
// Mapael version >= 2.x
self.mapConf = $[pluginName].maps[self.options.map.name];
} else if ($.fn[pluginName] && $.fn[pluginName].maps && $.fn[pluginName].maps[self.options.map.name]) {
// Mapael version <= 1.x - DEPRECATED
self.mapConf = $.fn[pluginName].maps[self.options.map.name];
if (window.console && window.console.warn) {
window.console.warn("Extending $.fn.mapael is deprecated (map '" + self.options.map.name + "')");
}
} else {
throw new Error("Unknown map '" + self.options.map.name + "'");
}
// Create Raphael paper
self.paper = new Raphael(self.$map[0], self.mapConf.width, self.mapConf.height);
// issue #135: Check for Raphael bug on text element boundaries
if (self.isRaphaelBBoxBugPresent() === true) {
self.destroy();
throw new Error("Can't get boundary box for text (is your container hidden? See #135)");
}
// add plugin class name on element
self.$container.addClass(pluginName);
if (self.options.map.tooltip.css) self.$tooltip.css(self.options.map.tooltip.css);
self.setViewBox(0, 0, self.mapConf.width, self.mapConf.height);
// Handle map size
if (self.options.map.width) {
// NOT responsive: map has a fixed width
self.paper.setSize(self.options.map.width, self.mapConf.height * (self.options.map.width / self.mapConf.width));
} else {
// Responsive: handle resizing of the map
self.initResponsiveSize();
}
// Draw map areas
$.each(self.mapConf.elems, function (id) {
// Init area object
self.areas[id] = {};
// Set area options
self.areas[id].options = self.getElemOptions(
self.options.map.defaultArea,
(self.options.areas[id] ? self.options.areas[id] : {}),
self.options.legend.area
);
// draw area
self.areas[id].mapElem = self.paper.path(self.mapConf.elems[id]);
});
// Hook that allows to add custom processing on the map
if (self.options.map.beforeInit) self.options.map.beforeInit(self.$container, self.paper, self.options);
// Init map areas in a second loop
// Allows text to be added after ALL areas and prevent them from being hidden
$.each(self.mapConf.elems, function (id) {
self.initElem(id, 'area', self.areas[id]);
});
// Draw links
self.links = self.drawLinksCollection(self.options.links);
// Draw plots
$.each(self.options.plots, function (id) {
self.plots[id] = self.drawPlot(id);
});
// Attach zoom event
self.$container.on("zoom." + pluginName, function (e, zoomOptions) {
self.onZoomEvent(e, zoomOptions);
});
if (self.options.map.zoom.enabled) {
// Enable zoom
self.initZoom(self.mapConf.width, self.mapConf.height, self.options.map.zoom);
}
// Set initial zoom
if (self.options.map.zoom.init !== undefined) {
if (self.options.map.zoom.init.animDuration === undefined) {
self.options.map.zoom.init.animDuration = 0;
}
self.$container.trigger("zoom", self.options.map.zoom.init);
}
// Create the legends for areas
self.createLegends("area", self.areas, 1);
// Create the legends for plots taking into account the scale of the map
self.createLegends("plot", self.plots, self.paper.width / self.mapConf.width);
// Attach update event
self.$container.on("update." + pluginName, function (e, opt) {
self.onUpdateEvent(e, opt);
});
// Attach showElementsInRange event
self.$container.on("showElementsInRange." + pluginName, function (e, opt) {
self.onShowElementsInRange(e, opt);
});
// Attach delegated events
self.initDelegatedMapEvents();
// Attach delegated custom events
self.initDelegatedCustomEvents();
// Hook that allows to add custom processing on the map
if (self.options.map.afterInit) self.options.map.afterInit(self.$container, self.paper, self.areas, self.plots, self.options);
$(self.paper.desc).append(" and Mapael " + self.version + " (https://www.vincentbroute.fr/mapael/)");
},
/*
* Destroy mapael
* This function effectively detach mapael from the container
* - Set the container back to the way it was before mapael instanciation
* - Remove all data associated to it (memory can then be free'ed by browser)
*
* This method can be call directly by user:
* $(".mapcontainer").data("mapael").destroy();
*
* This method is also automatically called if the user try to call mapael
* on a container already containing a mapael instance
*/
destroy: function () {
var self = this;
// Detach all event listeners attached to the container
self.$container.off("." + pluginName);
self.$map.off("." + pluginName);
// Detach the global resize event handler
if (self.onResizeEvent) $(window).off("resize." + pluginName, self.onResizeEvent);
// Empty the container (this will also detach all event listeners)
self.$map.empty();
// Replace initial HTML content
self.$map.html(self.initialMapHTMLContent);
// Empty legend containers and replace initial HTML content
$.each(self.legends, function(legendType) {
$.each(self.legends[legendType], function(legendIndex) {
var legend = self.legends[legendType][legendIndex];
legend.container.empty();
legend.container.html(legend.initialHTMLContent);
});
});
// Remove mapael class
self.$container.removeClass(pluginName);
// Remove the data
self.$container.removeData(pluginName);
// Remove all internal reference
self.container = undefined;
self.$container = undefined;
self.options = undefined;
self.paper = undefined;
self.$map = undefined;
self.$tooltip = undefined;
self.mapConf = undefined;
self.areas = undefined;
self.plots = undefined;
self.links = undefined;
self.customEventHandlers = undefined;
},
initResponsiveSize: function () {
var self = this;
var resizeTO = null;
// Function that actually handle the resizing
var handleResize = function(isInit) {
var containerWidth = self.$map.width();
if (self.paper.width !== containerWidth) {
var newScale = containerWidth / self.mapConf.width;
// Set new size
self.paper.setSize(containerWidth, self.mapConf.height * newScale);
// Create plots legend again to take into account the new scale
// Do not do this on init (it will be done later)
if (isInit !== true && self.options.legend.redrawOnResize) {
self.createLegends("plot", self.plots, newScale);
}
}
};
self.onResizeEvent = function() {
// Clear any previous setTimeout (avoid too much triggering)
clearTimeout(resizeTO);
// setTimeout to wait for the user to finish its resizing
resizeTO = setTimeout(function () {
handleResize();
}, self.resizeFilteringTO);
};
// Attach resize handler
$(window).on("resize." + pluginName, self.onResizeEvent);
// Call once
handleResize(true);
},
/*
* Extend the user option with the default one
* @param options the user options
* @return new options object
*/
extendDefaultOptions: function (options) {
// Extend default options with user options
options = $.extend(true, {}, Mapael.prototype.defaultOptions, options);
// Extend legend default options
$.each(['area', 'plot'], function (key, type) {
if ($.isArray(options.legend[type])) {
for (var i = 0; i < options.legend[type].length; ++i)
options.legend[type][i] = $.extend(true, {}, Mapael.prototype.legendDefaultOptions[type], options.legend[type][i]);
} else {
options.legend[type] = $.extend(true, {}, Mapael.prototype.legendDefaultOptions[type], options.legend[type]);
}
});
return options;
},
/*
* Init all delegated events for the whole map:
* mouseover
* mousemove
* mouseout
*/
initDelegatedMapEvents: function() {
var self = this;
// Mapping between data-type value and the corresponding elements array
// Note: legend-elem and legend-label are not in this table because
// they need a special processing
var dataTypeToElementMapping = {
'area' : self.areas,
'area-text' : self.areas,
'plot' : self.plots,
'plot-text' : self.plots,
'link' : self.links,
'link-text' : self.links
};
/* Attach mouseover event delegation
* Note: we filter the event with a timeout to reduce the firing when the mouse moves quickly
*/
var mapMouseOverTimeoutID;
self.$container.on("mouseover." + pluginName, "[data-id]", function () {
var elem = this;
clearTimeout(mapMouseOverTimeoutID);
mapMouseOverTimeoutID = setTimeout(function() {
var $elem = $(elem);
var id = $elem.attr('data-id');
var type = $elem.attr('data-type');
if (dataTypeToElementMapping[type] !== undefined) {
self.elemEnter(dataTypeToElementMapping[type][id]);
} else if (type === 'legend-elem' || type === 'legend-label') {
var legendIndex = $elem.attr('data-legend-id');
var legendType = $elem.attr('data-legend-type');
self.elemEnter(self.legends[legendType][legendIndex].elems[id]);
}
}, self.MouseOverFilteringTO);
});
/* Attach mousemove event delegation
* Note: timeout filtering is small to update the Tooltip position fast
*/
var mapMouseMoveTimeoutID;
self.$container.on("mousemove." + pluginName, "[data-id]", function (event) {
var elem = this;
clearTimeout(mapMouseMoveTimeoutID);
mapMouseMoveTimeoutID = setTimeout(function() {
var $elem = $(elem);
var id = $elem.attr('data-id');
var type = $elem.attr('data-type');
if (dataTypeToElementMapping[type] !== undefined) {
self.elemHover(dataTypeToElementMapping[type][id], event);
} else if (type === 'legend-elem' || type === 'legend-label') {
/* Nothing to do */
}
}, 0);
});
/* Attach mouseout event delegation
* Note: we don't perform any timeout filtering to clear & reset elem ASAP
* Otherwise an element may be stuck in 'hover' state (which is NOT good)
*/
self.$container.on("mouseout." + pluginName, "[data-id]", function () {
var elem = this;
// Clear any
clearTimeout(mapMouseOverTimeoutID);
clearTimeout(mapMouseMoveTimeoutID);
var $elem = $(elem);
var id = $elem.attr('data-id');
var type = $elem.attr('data-type');
if (dataTypeToElementMapping[type] !== undefined) {
self.elemOut(dataTypeToElementMapping[type][id]);
} else if (type === 'legend-elem' || type === 'legend-label') {
var legendIndex = $elem.attr('data-legend-id');
var legendType = $elem.attr('data-legend-type');
self.elemOut(self.legends[legendType][legendIndex].elems[id]);
}
});
/* Attach click event delegation
* Note: we filter the event with a timeout to avoid double click
*/
self.$container.on("click." + pluginName, "[data-id]", function (evt, opts) {
var $elem = $(this);
var id = $elem.attr('data-id');
var type = $elem.attr('data-type');
if (dataTypeToElementMapping[type] !== undefined) {
self.elemClick(dataTypeToElementMapping[type][id]);
} else if (type === 'legend-elem' || type === 'legend-label') {
var legendIndex = $elem.attr('data-legend-id');
var legendType = $elem.attr('data-legend-type');
self.handleClickOnLegendElem(self.legends[legendType][legendIndex].elems[id], id, legendIndex, legendType, opts);
}
});
},
/*
* Init all delegated custom events
*/
initDelegatedCustomEvents: function() {
var self = this;
$.each(self.customEventHandlers, function(eventName) {
// Namespace the custom event
// This allow to easily unbound only custom events and not regular ones
var fullEventName = eventName + '.' + pluginName + ".custom";
self.$container.off(fullEventName).on(fullEventName, "[data-id]", function (e) {
var $elem = $(this);
var id = $elem.attr('data-id');
var type = $elem.attr('data-type').replace('-text', '');
if (!self.panning &&
self.customEventHandlers[eventName][type] !== undefined &&
self.customEventHandlers[eventName][type][id] !== undefined)
{
// Get back related elem
var elem = self.customEventHandlers[eventName][type][id];
// Run callback provided by user
elem.options.eventHandlers[eventName](e, id, elem.mapElem, elem.textElem, elem.options);
}
});
});
},
/*
* Init the element "elem" on the map (drawing text, setting attributes, events, tooltip, ...)
*
* @param id the id of the element
* @param type the type of the element (area, plot, link)
* @param elem object the element object (with mapElem), it will be updated
*/
initElem: function (id, type, elem) {
var self = this;
var $mapElem = $(elem.mapElem.node);
// If an HTML link exists for this element, add cursor attributes
if (elem.options.href) {
elem.options.attrs.cursor = "pointer";
if (elem.options.text) elem.options.text.attrs.cursor = "pointer";
}
// Set SVG attributes to map element
elem.mapElem.attr(elem.options.attrs);
// Set DOM attributes to map element
$mapElem.attr({
"data-id": id,
"data-type": type
});
if (elem.options.cssClass !== undefined) {
$mapElem.addClass(elem.options.cssClass);
}
// Init the label related to the element
if (elem.options.text && elem.options.text.content !== undefined) {
// Set a text label in the area
var textPosition = self.getTextPosition(elem.mapElem.getBBox(), elem.options.text.position, elem.options.text.margin);
elem.options.text.attrs.text = elem.options.text.content;
elem.options.text.attrs.x = textPosition.x;
elem.options.text.attrs.y = textPosition.y;
elem.options.text.attrs['text-anchor'] = textPosition.textAnchor;
// Draw text
elem.textElem = self.paper.text(textPosition.x, textPosition.y, elem.options.text.content);
// Apply SVG attributes to text element
elem.textElem.attr(elem.options.text.attrs);
// Apply DOM attributes
$(elem.textElem.node).attr({
"data-id": id,
"data-type": type + '-text'
});
}
// Set user event handlers
if (elem.options.eventHandlers) self.setEventHandlers(id, type, elem);
// Set hover option for mapElem
self.setHoverOptions(elem.mapElem, elem.options.attrs, elem.options.attrsHover);
// Set hover option for textElem
if (elem.textElem) self.setHoverOptions(elem.textElem, elem.options.text.attrs, elem.options.text.attrsHover);
},
/*
* Init zoom and panning for the map
* @param mapWidth
* @param mapHeight
* @param zoomOptions
*/
initZoom: function (mapWidth, mapHeight, zoomOptions) {
var self = this;
var mousedown = false;
var previousX = 0;
var previousY = 0;
var fnZoomButtons = {
"reset": function () {
self.$container.trigger("zoom", {"level": 0});
},
"in": function () {
self.$container.trigger("zoom", {"level": "+1"});
},
"out": function () {
self.$container.trigger("zoom", {"level": -1});
}
};
// init Zoom data
$.extend(self.zoomData, {
zoomLevel: 0,
panX: 0,
panY: 0
});
// init zoom buttons
$.each(zoomOptions.buttons, function(type, opt) {
if (fnZoomButtons[type] === undefined) throw new Error("Unknown zoom button '" + type + "'");
// Create div with classes, contents and title (for tooltip)
var $button = $("<div>").addClass(opt.cssClass)
.html(opt.content)
.attr("title", opt.title);
// Assign click event
$button.on("click." + pluginName, fnZoomButtons[type]);
// Append to map
self.$map.append($button);
});
// Update the zoom level of the map on mousewheel
if (self.options.map.zoom.mousewheel) {
self.$map.on("mousewheel." + pluginName, function (e) {
var zoomLevel = (e.deltaY > 0) ? 1 : -1;
var coord = self.mapPagePositionToXY(e.pageX, e.pageY);
self.$container.trigger("zoom", {
"fixedCenter": true,
"level": self.zoomData.zoomLevel + zoomLevel,
"x": coord.x,
"y": coord.y
});
e.preventDefault();
});
}
// Update the zoom level of the map on touch pinch
if (self.options.map.zoom.touch) {
self.$map.on("touchstart." + pluginName, function (e) {
if (e.originalEvent.touches.length === 2) {
self.zoomCenterX = (e.originalEvent.touches[0].pageX + e.originalEvent.touches[1].pageX) / 2;
self.zoomCenterY = (e.originalEvent.touches[0].pageY + e.originalEvent.touches[1].pageY) / 2;
self.previousPinchDist = Math.sqrt(Math.pow((e.originalEvent.touches[1].pageX - e.originalEvent.touches[0].pageX), 2) + Math.pow((e.originalEvent.touches[1].pageY - e.originalEvent.touches[0].pageY), 2));
}
});
self.$map.on("touchmove." + pluginName, function (e) {
var pinchDist = 0;
var zoomLevel = 0;
if (e.originalEvent.touches.length === 2) {
pinchDist = Math.sqrt(Math.pow((e.originalEvent.touches[1].pageX - e.originalEvent.touches[0].pageX), 2) + Math.pow((e.originalEvent.touches[1].pageY - e.originalEvent.touches[0].pageY), 2));
if (Math.abs(pinchDist - self.previousPinchDist) > 15) {
var coord = self.mapPagePositionToXY(self.zoomCenterX, self.zoomCenterY);
zoomLevel = (pinchDist - self.previousPinchDist) / Math.abs(pinchDist - self.previousPinchDist);
self.$container.trigger("zoom", {
"fixedCenter": true,
"level": self.zoomData.zoomLevel + zoomLevel,
"x": coord.x,
"y": coord.y
});
self.previousPinchDist = pinchDist;
}
return false;
}
});
}
// When the user drag the map, prevent to move the clicked element instead of dragging the map (behaviour seen with Firefox)
self.$map.on("dragstart", function() {
return false;
});
// Panning
var panningMouseUpTO = null;
var panningMouseMoveTO = null;
$("body").on("mouseup." + pluginName + (zoomOptions.touch ? " touchend." + pluginName : ""), function () {
mousedown = false;
clearTimeout(panningMouseUpTO);
clearTimeout(panningMouseMoveTO);
panningMouseUpTO = setTimeout(function () {
self.panning = false;
}, self.panningEndFilteringTO);
});
self.$map.on("mousedown." + pluginName + (zoomOptions.touch ? " touchstart." + pluginName : ""), function (e) {
clearTimeout(panningMouseUpTO);
clearTimeout(panningMouseMoveTO);
if (e.pageX !== undefined) {
mousedown = true;
previousX = e.pageX;
previousY = e.pageY;
} else {
if (e.originalEvent.touches.length === 1) {
mousedown = true;
previousX = e.originalEvent.touches[0].pageX;
previousY = e.originalEvent.touches[0].pageY;
}
}
}).on("mousemove." + pluginName + (zoomOptions.touch ? " touchmove." + pluginName : ""), function (e) {
var currentLevel = self.zoomData.zoomLevel;
var pageX = 0;
var pageY = 0;
clearTimeout(panningMouseUpTO);
clearTimeout(panningMouseMoveTO);
if (e.pageX !== undefined) {
pageX = e.pageX;
pageY = e.pageY;
} else {
if (e.originalEvent.touches.length === 1) {
pageX = e.originalEvent.touches[0].pageX;
pageY = e.originalEvent.touches[0].pageY;
} else {
mousedown = false;
}
}
if (mousedown && currentLevel !== 0) {
var offsetX = (previousX - pageX) / (1 + (currentLevel * zoomOptions.step)) * (mapWidth / self.paper.width);
var offsetY = (previousY - pageY) / (1 + (currentLevel * zoomOptions.step)) * (mapHeight / self.paper.height);
var panX = Math.min(Math.max(0, self.currentViewBox.x + offsetX), (mapWidth - self.currentViewBox.w));
var panY = Math.min(Math.max(0, self.currentViewBox.y + offsetY), (mapHeight - self.currentViewBox.h));
if (Math.abs(offsetX) > 5 || Math.abs(offsetY) > 5) {
$.extend(self.zoomData, {
panX: panX,
panY: panY,
zoomX: panX + self.currentViewBox.w / 2,
zoomY: panY + self.currentViewBox.h / 2
});
self.setViewBox(panX, panY, self.currentViewBox.w, self.currentViewBox.h);
panningMouseMoveTO = setTimeout(function () {
self.$map.trigger("afterPanning", {
x1: panX,
y1: panY,
x2: (panX + self.currentViewBox.w),
y2: (panY + self.currentViewBox.h)
});
}, self.panningFilteringTO);
previousX = pageX;
previousY = pageY;
self.panning = true;
}
return false;
}
});
},
/*
* Map a mouse position to a map position
* Transformation principle:
* ** start with (pageX, pageY) absolute mouse coordinate
* - Apply translation: take into accounts the map offset in the page
* ** from this point, we have relative mouse coordinate
* - Apply homothetic transformation: take into accounts initial factor of map sizing (fullWidth / actualWidth)
* - Apply homothetic transformation: take into accounts the zoom factor
* ** from this point, we have relative map coordinate
* - Apply translation: take into accounts the current panning of the map
* ** from this point, we have absolute map coordinate
* @param pageX: mouse client coordinate on X
* @param pageY: mouse client coordinate on Y
* @return map coordinate {x, y}
*/
mapPagePositionToXY: function(pageX, pageY) {
var self = this;
var offset = self.$map.offset();
var initFactor = (self.options.map.width) ? (self.mapConf.width / self.options.map.width) : (self.mapConf.width / self.$map.width());
var zoomFactor = 1 / (1 + (self.zoomData.zoomLevel * self.options.map.zoom.step));
return {
x: (zoomFactor * initFactor * (pageX - offset.left)) + self.zoomData.panX,
y: (zoomFactor * initFactor * (pageY - offset.top)) + self.zoomData.panY
};
},
/*
* Zoom on the map
*
* zoomOptions.animDuration zoom duration
*
* zoomOptions.level level of the zoom between minLevel and maxLevel (absolute number, or relative string +1 or -1)
* zoomOptions.fixedCenter set to true in order to preserve the position of x,y in the canvas when zoomed
*
* zoomOptions.x x coordinate of the point to focus on
* zoomOptions.y y coordinate of the point to focus on
* - OR -
* zoomOptions.latitude latitude of the point to focus on
* zoomOptions.longitude longitude of the point to focus on
* - OR -
* zoomOptions.plot plot ID to focus on
* - OR -
* zoomOptions.area area ID to focus on
* zoomOptions.areaMargin margin (in pixels) around the area
*
* If an area ID is specified, the algorithm will override the zoom level to focus on the area
* but it may be limited by the min/max zoom level limits set at initialization.
*
* If no coordinates are specified, the zoom will be focused on the center of the current view box
*
*/
onZoomEvent: function (e, zoomOptions) {
var self = this;
// new Top/Left corner coordinates
var panX;
var panY;
// new Width/Height viewbox size
var panWidth;
var panHeight;
// Zoom level in absolute scale (from 0 to max, by step of 1)
var zoomLevel = self.zoomData.zoomLevel;
// Relative zoom level (from 1 to max, by step of 0.25 (default))
var previousRelativeZoomLevel = 1 + self.zoomData.zoomLevel * self.options.map.zoom.step;
var relativeZoomLevel;
var animDuration = (zoomOptions.animDuration !== undefined) ? zoomOptions.animDuration : self.options.map.zoom.animDuration;
if (zoomOptions.area !== undefined) {
/* An area is given
* We will define x/y coordinate AND a new zoom level to fill the area
*/
if (self.areas[zoomOptions.area] === undefined) throw new Error("Unknown area '" + zoomOptions.area + "'");
var areaMargin = (zoomOptions.areaMargin !== undefined) ? zoomOptions.areaMargin : 10;
var areaBBox = self.areas[zoomOptions.area].mapElem.getBBox();
var areaFullWidth = areaBBox.width + 2 * areaMargin;
var areaFullHeight = areaBBox.height + 2 * areaMargin;
// Compute new x/y focus point (center of area)
zoomOptions.x = areaBBox.cx;
zoomOptions.y = areaBBox.cy;
// Compute a new absolute zoomLevel value (inverse of relative -> absolute)
// Take the min between zoomLevel on width vs. height to be able to see the whole area
zoomLevel = Math.min(Math.floor((self.mapConf.width / areaFullWidth - 1) / self.options.map.zoom.step),
Math.floor((self.mapConf.height / areaFullHeight - 1) / self.options.map.zoom.step));
} else {
// Get user defined zoom level
if (zoomOptions.level !== undefined) {
if (typeof zoomOptions.level === "string") {
// level is a string, either "n", "+n" or "-n"
if ((zoomOptions.level.slice(0, 1) === '+') || (zoomOptions.level.slice(0, 1) === '-')) {
// zoomLevel is relative
zoomLevel = self.zoomData.zoomLevel + parseInt(zoomOptions.level, 10);
} else {
// zoomLevel is absolute
zoomLevel = parseInt(zoomOptions.level, 10);
}
} else {
// level is integer
if (zoomOptions.level < 0) {
// zoomLevel is relative
zoomLevel = self.zoomData.zoomLevel + zoomOptions.level;
} else {
// zoomLevel is absolute
zoomLevel = zoomOptions.level;
}
}
}
if (zoomOptions.plot !== undefined) {
if (self.plots[zoomOptions.plot] === undefined) throw new Error("Unknown plot '" + zoomOptions.plot + "'");
zoomOptions.x = self.plots[zoomOptions.plot].coords.x;
zoomOptions.y = self.plots[zoomOptions.plot].coords.y;
} else {
if (zoomOptions.latitude !== undefined && zoomOptions.longitude !== undefined) {
var coords = self.mapConf.getCoords(zoomOptions.latitude, zoomOptions.longitude);
zoomOptions.x = coords.x;
zoomOptions.y = coords.y;
}
if (zoomOptions.x === undefined) {
zoomOptions.x = self.currentViewBox.x + self.currentViewBox.w / 2;
}
if (zoomOptions.y === undefined) {
zoomOptions.y = self.currentViewBox.y + self.currentViewBox.h / 2;
}
}
}
// Make sure we stay in the zoom level boundaries
zoomLevel = Math.min(Math.max(zoomLevel, self.options.map.zoom.minLevel), self.options.map.zoom.maxLevel);
// Compute relative zoom level
relativeZoomLevel = 1 + zoomLevel * self.options.map.zoom.step;
// Compute panWidth / panHeight
panWidth = self.mapConf.width / relativeZoomLevel;
panHeight = self.mapConf.height / relativeZoomLevel;
if (zoomLevel === 0) {
panX = 0;
panY = 0;
} else {
if (zoomOptions.fixedCenter !== undefined && zoomOptions.fixedCenter === true) {
panX = self.zoomData.panX + ((zoomOptions.x - self.zoomData.panX) * (relativeZoomLevel - previousRelativeZoomLevel)) / relativeZoomLevel;
panY = self.zoomData.panY + ((zoomOptions.y - self.zoomData.panY) * (relativeZoomLevel - previousRelativeZoomLevel)) / relativeZoomLevel;
} else {
panX = zoomOptions.x - panWidth / 2;
panY = zoomOptions.y - panHeight / 2;
}
// Make sure we stay in the map boundaries
panX = Math.min(Math.max(0, panX), self.mapConf.width - panWidth);
panY = Math.min(Math.max(0, panY), self.mapConf.height - panHeight);
}
// Update zoom level of the map
if (relativeZoomLevel === previousRelativeZoomLevel && panX === self.zoomData.panX && panY === self.zoomData.panY) return;
if (animDuration > 0) {
self.animateViewBox(panX, panY, panWidth, panHeight, animDuration, self.options.map.zoom.animEasing);
} else {
self.setViewBox(panX, panY, panWidth, panHeight);
clearTimeout(self.zoomTO);
self.zoomTO = setTimeout(function () {
self.$map.trigger("afterZoom", {
x1: panX,
y1: panY,
x2: panX + panWidth,
y2: panY + panHeight
});
}, self.zoomFilteringTO);
}
$.extend(self.zoomData, {
zoomLevel: zoomLevel,
panX: panX,
panY: panY,
zoomX: panX + panWidth / 2,
zoomY: panY + panHeight / 2
});
},
/*
* Show some element in range defined by user
* Triggered by user $(".mapcontainer").trigger("showElementsInRange", [opt]);
*
* @param opt the options
* opt.hiddenOpacity opacity for hidden element (default = 0.3)
* opt.animDuration animation duration in ms (default = 0)
* opt.afterShowRange callback
* opt.ranges the range to show:
* Example:
* opt.ranges = {
* 'plot' : {
* 0 : { // valueIndex
* 'min': 1000,
* 'max': 1200
* },
* 1 : { // valueIndex
* 'min': 10,
* 'max': 12
* }
* },
* 'area' : {
* {'min': 10, 'max': 20} // No valueIndex, only an object, use 0 as valueIndex (easy case)
* }
* }
*/
onShowElementsInRange: function(e, opt) {
var self = this;
// set animDuration to default if not defined
if (opt.animDuration === undefined) {
opt.animDuration = 0;
}
// set hiddenOpacity to default if not defined
if (opt.hiddenOpacity === undefined) {
opt.hiddenOpacity = 0.3;
}
// handle area
if (opt.ranges && opt.ranges.area) {
self.showElemByRange(opt.ranges.area, self.areas, opt.hiddenOpacity, opt.animDuration);
}
// handle plot
if (opt.ranges && opt.ranges.plot) {
self.showElemByRange(opt.ranges.plot, self.plots, opt.hiddenOpacity, opt.animDuration);
}
// handle link
if (opt.ranges && opt.ranges.link) {
self.showElemByRange(opt.ranges.link, self.links, opt.hiddenOpacity, opt.animDuration);
}
// Call user callback
if (opt.afterShowRange) opt.afterShowRange();
},
/*
* Show some element in range
* @param ranges: the ranges
* @param elems: list of element on which to check against previous range
* @hiddenOpacity: the opacity when hidden
* @animDuration: the animation duration
*/
showElemByRange: function(ranges, elems, hiddenOpacity, animDuration) {
var self = this;
// Hold the final opacity value for all elements consolidated after applying each ranges
// This allow to set the opacity only once for each elements
var elemsFinalOpacity = {};
// set object with one valueIndex to 0 if we have directly the min/max
if (ranges.min !== undefined || ranges.max !== undefined) {
ranges = {0: ranges};
}
// Loop through each valueIndex
$.each(ranges, function (valueIndex) {
var range = ranges[valueIndex];
// Check if user defined at least a min or max value
if (range.min === undefined && range.max === undefined) {
return true; // skip this iteration (each loop), goto next range
}
// Loop through each elements
$.each(elems, function (id) {
var elemValue = elems[id].options.value;
// set value with one valueIndex to 0 if not object
if (typeof elemValue !== "object") {
elemValue = [elemValue];
}
// Check existence of this value index
if (elemValue[valueIndex] === undefined) {
return true; // skip this iteration (each loop), goto next element
}
// Check if in range
if ((range.min !== undefined && elemValue[valueIndex] < range.min) ||
(range.max !== undefined && elemValue[valueIndex] > range.max)) {
// Element not in range
elemsFinalOpacity[id] = hiddenOpacity;
} else {
// Element in range
elemsFinalOpacity[id] = 1;
}
});
});
// Now that we looped through all ranges, we can really assign the final opacity
$.each(elemsFinalOpacity, function (id) {
self.setElementOpacity(elems[id], elemsFinalOpacity[id], animDuration);
});
},
/*
* Set element opacity
* Handle elem.mapElem and elem.textElem
* @param elem the element
* @param opacity the opacity to apply
* @param animDuration the animation duration to use
*/
setElementOpacity: function(elem, opacity, animDuration) {
var self = this;
// Ensure no animation is running
//elem.mapElem.stop();
//if (elem.textElem) elem.textElem.stop();
// If final opacity is not null, ensure element is shown before proceeding
if (opacity > 0) {
elem.mapElem.show();
if (elem.textElem) elem.textElem.show();
}
self.animate(elem.mapElem, {"opacity": opacity}, animDuration, function () {
// If final attribute is 0, hide
if (opacity === 0) elem.mapElem.hide();
});
self.animate(elem.textElem, {"opacity": opacity}, animDuration, function () {
// If final attribute is 0, hide
if (opacity === 0) elem.textElem.hide();
});
},
/*
* Update the current map
*
* Refresh attributes and tooltips for areas and plots
* @param opt option for the refresh :
* opt.mapOptions: options to update for plots and areas
* opt.replaceOptions: whether mapsOptions should entirely replace current map options, or just extend it
* opt.opt.newPlots new plots to add to the map
* opt.newLinks new links to add to the map
* opt.deletePlotKeys plots to delete from the map (array, or "all" to remove all plots)
* opt.deleteLinkKeys links to remove from the map (array, or "all" to remove all links)
* opt.setLegendElemsState the state of legend elements to be set : show (default) or hide
* opt.animDuration animation duration in ms (default = 0)
* opt.afterUpdate hook that allows to add custom processing on the map
*/
onUpdateEvent: function (e, opt) {
var self = this;
// Abort if opt is undefined
if (typeof opt !== "object") return;
var i = 0;
var animDuration = (opt.animDuration) ? opt.animDuration : 0;
// This function remove an element using animation (or not, depending on animDuration)
// Used for deletePlotKeys and deleteLinkKeys
var fnRemoveElement = function (elem) {
self.animate(elem.mapElem, {"opacity": 0}, animDuration, function () {
elem.mapElem.remove();
});
self.animate(elem.textElem, {"opacity": 0}, animDuration, function () {
elem.textElem.remove();
});
};
// This function show an element using animation
// Used for newPlots and newLinks
var fnShowElement = function (elem) {
// Starts with hidden elements
elem.mapElem.attr({opacity: 0});
if (elem.textElem) elem.textElem.attr({opacity: 0});
// Set final element opacity
self.setElementOpacity(
elem,
(elem.mapElem.originalAttrs.opacity !== undefined) ? elem.mapElem.originalAttrs.opacity : 1,
animDuration
);
};
if (typeof opt.mapOptions === "object") {
if (opt.replaceOptions === true) self.options = self.extendDefaultOptions(opt.mapOptions);
else $.extend(true, self.options, opt.mapOptions);
// IF we update areas, plots or legend, then reset all legend state to "show"
if (opt.mapOptions.areas !== undefined || opt.mapOptions.plots !== undefined || opt.mapOptions.legend !== undefined) {
$("[data-type='legend-elem']", self.$container).each(function (id, elem) {
if ($(elem).attr('data-hidden') === "1") {
// Toggle state of element by clicking
$(elem).trigger("click", {hideOtherElems: false, animDuration: animDuration});
}
});
}
}
// Delete plots by name if deletePlotKeys is array
if (typeof opt.deletePlotKeys === "object") {
for (; i < opt.deletePlotKeys.length; i++) {
if (self.plots[opt.deletePlotKeys[i]] !== undefined) {
fnRemoveElement(self.plots[opt.deletePlotKeys[i]]);
delete self.plots[opt.deletePlotKeys[i]];
}
}
// Delete ALL plots if deletePlotKeys is set to "all"
} else if (opt.deletePlotKeys === "all") {
$.each(self.plots, function (id, elem) {
fnRemoveElement(elem);
});
// Empty plots object
self.plots = {};
}
// Delete links by name if deleteLinkKeys is array
if (typeof opt.deleteLinkKeys === "object") {
for (i = 0; i < opt.deleteLinkKeys.length; i++) {
if (self.links[opt.deleteLinkKeys[i]] !== undefined) {
fnRemoveElement(self.links[opt.deleteLinkKeys[i]]);
delete self.links[opt.deleteLinkKeys[i]];
}
}
// Delete ALL links if deleteLinkKeys is set to "all"
} else if (opt.deleteLinkKeys === "all") {
$.each(self.links, function (id, elem) {
fnRemoveElement(elem);
});
// Empty links object
self.links = {};
}
// New plots
if (typeof opt.newPlots === "object") {
$.each(opt.newPlots, function (id) {
if (self.plots[id] === undefined) {
self.options.plots[id] = opt.newPlots[id];
self.plots[id] = self.drawPlot(id);
if (animDuration > 0) {
fnShowElement(self.plots[id]);
}
}
});
}
// New links
if (typeof opt.newLinks === "object") {
var newLinks = self.drawLinksCollection(opt.newLinks);
$.extend(self.links, newLinks);
$.extend(self.options.links, opt.newLinks);
if (animDuration > 0) {
$.each(newLinks, function (id) {
fnShowElement(newLinks[id]);
});
}
}
// Update areas attributes and tooltips
$.each(self.areas, function (id) {
// Avoid updating unchanged elements
if ((typeof opt.mapOptions === "object" &&
(
(typeof opt.mapOptions.map === "object" && typeof opt.mapOptions.map.defaultArea === "object") ||
(typeof opt.mapOptions.areas === "object" && typeof opt.mapOptions.areas[id] === "object") ||
(typeof opt.mapOptions.legend === "object" && typeof opt.mapOptions.legend.area === "object")
)) || opt.replaceOptions === true
) {
self.areas[id].options = self.getElemOptions(
self.options.map.defaultArea,
(self.options.areas[id] ? self.options.areas[id] : {}),
self.options.legend.area
);
self.updateElem(self.areas[id], animDuration);
}
});
// Update plots attributes and tooltips
$.each(self.plots, function (id) {
// Avoid updating unchanged elements
if ((typeof opt.mapOptions ==="object" &&
(
(typeof opt.mapOptions.map === "object" && typeof opt.mapOptions.map.defaultPlot === "object") ||
(typeof opt.mapOptions.plots === "object" && typeof opt.mapOptions.plots[id] === "object") ||
(typeof opt.mapOptions.legend === "object" && typeof opt.mapOptions.legend.plot === "object")
)) || opt.replaceOptions === true
) {
self.plots[id].options = self.getElemOptions(
self.options.map.defaultPlot,
(self.options.plots[id] ? self.options.plots[id] : {}),
self.options.legend.plot
);
self.setPlotCoords(self.plots[id]);
self.setPlotAttributes(self.plots[id]);
self.updateElem(self.plots[id], animDuration);
}
});
// Update links attributes and tooltips
$.each(self.links, function (id) {
// Avoid updating unchanged elements
if ((typeof opt.mapOptions === "object" &&
(
(typeof opt.mapOptions.map === "object" && typeof opt.mapOptions.map.defaultLink === "object") ||
(typeof opt.mapOptions.links === "object" && typeof opt.mapOptions.links[id] === "object")
)) || opt.replaceOptions === true
) {
self.links[id].options = self.getElemOptions(
self.options.map.defaultLink,
(self.options.links[id] ? self.options.links[id] : {}),
{}
);
self.updateElem(self.links[id], animDuration);
}
});
// Update legends
if (opt.mapOptions && (
(typeof opt.mapOptions.legend === "object") ||
(typeof opt.mapOptions.map === "object" && typeof opt.mapOptions.map.defaultArea === "object") ||
(typeof opt.mapOptions.map === "object" && typeof opt.mapOptions.map.defaultPlot === "object")
)) {
// Show all elements on the map before updating the legends
$("[data-type='legend-elem']", self.$container).each(function (id, elem) {
if ($(elem).attr('data-hidden') === "1") {
$(elem).trigger("click", {hideOtherElems: false, animDuration: animDuration});
}
});
self.createLegends("area", self.areas, 1);
if (self.options.map.width) {
self.createLegends("plot", self.plots, (self.options.map.width / self.mapConf.width));
} else {
self.createLegends("plot", self.plots, (self.$map.width() / self.mapConf.width));
}
}
// Hide/Show all elements based on showlegendElems
// Toggle (i.e. click) only if:
// - slice legend is shown AND we want to hide
// - slice legend is hidden AND we want to show
if (typeof opt.setLegendElemsState === "object") {
// setLegendElemsState is an object listing the legend we want to hide/show
$.each(opt.setLegendElemsState, function (legendCSSClass, action) {
// Search for the legend
var $legend = self.$container.find("." + legendCSSClass)[0];
if ($legend !== undefined) {
// Select all elem inside this legend
$("[data-type='legend-elem']", $legend).each(function (id, elem) {
if (($(elem).attr('data-hidden') === "0" && action === "hide") ||
($(elem).attr('data-hidden') === "1" && action === "show")) {
// Toggle state of element by clicking
$(elem).trigger("click", {hideOtherElems: false, animDuration: animDuration});
}
});
}
});
} else {
// setLegendElemsState is a string, or is undefined
// Default : "show"
var action = (opt.setLegendElemsState === "hide") ? "hide" : "show";
$("[data-type='legend-elem']", self.$container).each(function (id, elem) {
if (($(elem).attr('data-hidden') === "0" && action === "hide") ||
($(elem).attr('data-hidden') === "1" && action === "show")) {
// Toggle state of element by clicking
$(elem).trigger("click", {hideOtherElems: false, animDuration: animDuration});
}
});
}
// Always rebind custom events on update
self.initDelegatedCustomEvents();
if (opt.afterUpdate) opt.afterUpdate(self.$container, self.paper, self.areas, self.plots, self.options, self.links);
},
/*
* Set plot coordinates
* @param plot object plot element
*/
setPlotCoords: function(plot) {
var self = this;
if (plot.options.x !== undefined && plot.options.y !== undefined) {
plot.coords = {
x: plot.options.x,
y: plot.options.y
};
} else if (plot.options.plotsOn !== undefined && self.areas[plot.options.plotsOn] !== undefined) {
var areaBBox = self.areas[plot.options.plotsOn].mapElem.getBBox();
plot.coords = {
x: areaBBox.cx,
y: areaBBox.cy
};
} else {
plot.coords = self.mapConf.getCoords(plot.options.latitude, plot.options.longitude);
}
},
/*
* Set plot size attributes according to its type
* Note: for SVG, plot.mapElem needs to exists beforehand
* @param plot object plot element
*/
setPlotAttributes: function(plot) {
if (plot.options.type === "square") {
plot.options.attrs.width = plot.options.size;
plot.options.attrs.height = plot.options.size;
plot.options.attrs.x = plot.coords.x - (plot.options.size / 2);
plot.options.attrs.y = plot.coords.y - (plot.options.size / 2);
} else if (plot.options.type === "image") {
plot.options.attrs.src = plot.options.url;
plot.options.attrs.width = plot.options.width;
plot.options.attrs.height = plot.options.height;
plot.options.attrs.x = plot.coords.x - (plot.options.width / 2);
plot.options.attrs.y = plot.coords.y - (plot.options.height / 2);
} else if (plot.options.type === "svg") {
plot.options.attrs.path = plot.options.path;
// Init transform string
if (plot.options.attrs.transform === undefined) {
plot.options.attrs.transform = "";
}
// Retrieve original boundary box if not defined
if (plot.mapElem.originalBBox === undefined) {
plot.mapElem.originalBBox = plot.mapElem.getBBox();
}
// The base transform will resize the SVG path to the one specified by width/height
// and also move the path to the actual coordinates
plot.mapElem.baseTransform = "m" + (plot.options.width / plot.mapElem.originalBBox.width) + ",0,0," +
(plot.options.height / plot.mapElem.originalBBox.height) + "," +
(plot.coords.x - plot.options.width / 2) + "," +
(plot.coords.y - plot.options.height / 2);
plot.options.attrs.transform = plot.mapElem.baseTransform + plot.options.attrs.transform;
} else { // Default : circle
plot.options.attrs.x = plot.coords.x;
plot.options.attrs.y = plot.coords.y;
plot.options.attrs.r = plot.options.size / 2;
}
},
/*
* Draw all links between plots on the paper
*/
drawLinksCollection: function (linksCollection) {
var self = this;
var p1 = {};
var p2 = {};
var coordsP1 = {};
var coordsP2 = {};
var links = {};
$.each(linksCollection, function (id) {
var elemOptions = self.getElemOptions(self.options.map.defaultLink, linksCollection[id], {});
if (typeof linksCollection[id].between[0] === 'string') {
p1 = self.options.plots[linksCollection[id].between[0]];
} else {
p1 = linksCollection[id].between[0];
}
if (typeof linksCollection[id].between[1] === 'string') {
p2 = self.options.plots[linksCollection[id].between[1]];
} else {
p2 = linksCollection[id].between[1];
}
if (p1.plotsOn !== undefined && self.areas[p1.plotsOn] !== undefined) {
var p1BBox = self.areas[p1.plotsOn].mapElem.getBBox();
coordsP1 = {
x: p1BBox.cx,
y: p1BBox.cy
};
}
else if (p1.latitude !== undefined && p1.longitude !== undefined) {
coordsP1 = self.mapConf.getCoords(p1.latitude, p1.longitude);
} else {
coordsP1.x = p1.x;
coordsP1.y = p1.y;
}
if (p2.plotsOn !== undefined && self.areas[p2.plotsOn] !== undefined) {
var p2BBox = self.areas[p2.plotsOn].mapElem.getBBox();
coordsP2 = {
x: p2BBox.cx,
y: p2BBox.cy
};
}
else if (p2.latitude !== undefined && p2.longitude !== undefined) {
coordsP2 = self.mapConf.getCoords(p2.latitude, p2.longitude);
} else {
coordsP2.x = p2.x;
coordsP2.y = p2.y;
}
links[id] = self.drawLink(id, coordsP1.x, coordsP1.y, coordsP2.x, coordsP2.y, elemOptions);
});
return links;
},
/*
* Draw a curved link between two couples of coordinates a(xa,ya) and b(xb, yb) on the paper
*/
drawLink: function (id, xa, ya, xb, yb, elemOptions) {
var self = this;
var link = {
options: elemOptions
};
// Compute the "curveto" SVG point, d(x,y)
// c(xc, yc) is the center of (xa,ya) and (xb, yb)
var xc = (xa + xb) / 2;
var yc = (ya + yb) / 2;
// Equation for (cd) : y = acd * x + bcd (d is the cure point)
var acd = -1 / ((yb - ya) / (xb - xa));
var bcd = yc - acd * xc;
// dist(c,d) = dist(a,b) (=abDist)
var abDist = Math.sqrt((xb - xa) * (xb - xa) + (yb - ya) * (yb - ya));
// Solution for equation dist(cd) = sqrt((xd - xc)² + (yd - yc)²)
// dist(c,d)² = (xd - xc)² + (yd - yc)²
// We assume that dist(c,d) = dist(a,b)
// so : (xd - xc)² + (yd - yc)² - dist(a,b)² = 0
// With the factor : (xd - xc)² + (yd - yc)² - (factor*dist(a,b))² = 0
// (xd - xc)² + (acd*xd + bcd - yc)² - (factor*dist(a,b))² = 0
var a = 1 + acd * acd;
var b = -2 * xc + 2 * acd * bcd - 2 * acd * yc;
var c = xc * xc + bcd * bcd - bcd * yc - yc * bcd + yc * yc - ((elemOptions.factor * abDist) * (elemOptions.factor * abDist));
var delta = b * b - 4 * a * c;
var x = 0;
var y = 0;
// There are two solutions, we choose one or the other depending on the sign of the factor
if (elemOptions.factor > 0) {
x = (-b + Math.sqrt(delta)) / (2 * a);
y = acd * x + bcd;
} else {
x = (-b - Math.sqrt(delta)) / (2 * a);
y = acd * x + bcd;
}
link.mapElem = self.paper.path("m " + xa + "," + ya + " C " + x + "," + y + " " + xb + "," + yb + " " + xb + "," + yb + "");
self.initElem(id, 'link', link);
return link;
},
/*
* Check wether newAttrs object bring modifications to originalAttrs object
*/
isAttrsChanged: function(originalAttrs, newAttrs) {
for (var key in newAttrs) {
if (newAttrs.hasOwnProperty(key) && typeof originalAttrs[key] === 'undefined' || newAttrs[key] !== originalAttrs[key]) {
return true;
}
}
return false;
},
/*
* Update the element "elem" on the map with the new options
*/
updateElem: function (elem, animDuration) {
var self = this;
var mapElemBBox;
var plotOffsetX;
var plotOffsetY;
if (elem.options.toFront === true) {
elem.mapElem.toFront();
}
// Set the cursor attribute related to the HTML link
if (elem.options.href !== undefined) {
elem.options.attrs.cursor = "pointer";
if (elem.options.text) elem.options.text.attrs.cursor = "pointer";
} else {
// No HTML links, check if a cursor was defined to pointer
if (elem.mapElem.attrs.cursor === 'pointer') {
elem.options.attrs.cursor = "auto";
if (elem.options.text) elem.options.text.attrs.cursor = "auto";
}
}
// Update the label
if (elem.textElem) {
// Update text attr
elem.options.text.attrs.text = elem.options.text.content;
// Get mapElem size, and apply an offset to handle future width/height change
mapElemBBox = elem.mapElem.getBBox();
if (elem.options.size || (elem.options.width && elem.options.height)) {
if (elem.options.type === "image" || elem.options.type === "svg") {
plotOffsetX = (elem.options.width - mapElemBBox.width) / 2;
plotOffsetY = (elem.options.height - mapElemBBox.height) / 2;
} else {
plotOffsetX = (elem.options.size - mapElemBBox.width) / 2;
plotOffsetY = (elem.options.size - mapElemBBox.height) / 2;
}
mapElemBBox.x -= plotOffsetX;
mapElemBBox.x2 += plotOffsetX;
mapElemBBox.y -= plotOffsetY;
mapElemBBox.y2 += plotOffsetY;
}
// Update position attr
var textPosition = self.getTextPosition(mapElemBBox, elem.options.text.position, elem.options.text.margin);
elem.options.text.attrs.x = textPosition.x;
elem.options.text.attrs.y = textPosition.y;
elem.options.text.attrs['text-anchor'] = textPosition.textAnchor;
// Update text element attrs and attrsHover
self.setHoverOptions(elem.textElem, elem.options.text.attrs, elem.options.text.attrsHover);
if (self.isAttrsChanged(elem.textElem.attrs, elem.options.text.attrs)) {
self.animate(elem.textElem, elem.options.text.attrs, animDuration);
}
}
// Update elements attrs and attrsHover
self.setHoverOptions(elem.mapElem, elem.options.attrs, elem.options.attrsHover);
if (self.isAttrsChanged(elem.mapElem.attrs, elem.options.attrs)) {
self.animate(elem.mapElem, elem.options.attrs, animDuration);
}
// Update the cssClass
if (elem.options.cssClass !== undefined) {
$(elem.mapElem.node).removeClass().addClass(elem.options.cssClass);
}
},
/*
* Draw the plot
*/
drawPlot: function (id) {
var self = this;
var plot = {};
// Get plot options and store it
plot.options = self.getElemOptions(
self.options.map.defaultPlot,
(self.options.plots[id] ? self.options.plots[id] : {}),
self.options.legend.plot
);
// Set plot coords
self.setPlotCoords(plot);
// Draw SVG before setPlotAttributes()
if (plot.options.type === "svg") {
plot.mapElem = self.paper.path(plot.options.path);
}
// Set plot size attrs
self.setPlotAttributes(plot);
// Draw other types of plots
if (plot.options.type === "square") {
plot.mapElem = self.paper.rect(
plot.options.attrs.x,
plot.options.attrs.y,
plot.options.attrs.width,
plot.options.attrs.height
);
} else if (plot.options.type === "image") {
plot.mapElem = self.paper.image(
plot.options.attrs.src,
plot.options.attrs.x,
plot.options.attrs.y,
plot.options.attrs.width,
plot.options.attrs.height
);
} else if (plot.options.type === "svg") {
// Nothing to do
} else {
// Default = circle
plot.mapElem = self.paper.circle(
plot.options.attrs.x,
plot.options.attrs.y,
plot.options.attrs.r
);
}
self.initElem(id, 'plot', plot);
return plot;
},
/*
* Set user defined handlers for events on areas and plots
* @param id the id of the element
* @param type the type of the element (area, plot, link)
* @param elem the element object {mapElem, textElem, options, ...}
*/
setEventHandlers: function (id, type, elem) {
var self = this;
$.each(elem.options.eventHandlers, function (event) {
if (self.customEventHandlers[event] === undefined) self.customEventHandlers[event] = {};
if (self.customEventHandlers[event][type] === undefined) self.customEventHandlers[event][type] = {};
self.customEventHandlers[event][type][id] = elem;
});
},
/*
* Draw a legend for areas and / or plots
* @param legendOptions options for the legend to draw
* @param legendType the type of the legend : "area" or "plot"
* @param elems collection of plots or areas on the maps
* @param legendIndex index of the legend in the conf array
*/
drawLegend: function (legendOptions, legendType, elems, scale, legendIndex) {
var self = this;
var $legend = {};
var legendPaper = {};
var width = 0;
var height = 0;
var title = null;
var titleBBox = null;
var legendElems = {};
var i = 0;
var x = 0;
var y = 0;
var yCenter = 0;
var sliceOptions = [];
$legend = $("." + legendOptions.cssClass, self.$container);
// Save content for later
var initialHTMLContent = $legend.html();
$legend.empty();
legendPaper = new Raphael($legend.get(0));
// Set some data to object
$(legendPaper.canvas).attr({"data-legend-type": legendType, "data-legend-id": legendIndex});
height = width = 0;
// Set the title of the legend
if (legendOptions.title && legendOptions.title !== "") {
title = legendPaper.text(legendOptions.marginLeftTitle, 0, legendOptions.title).attr(legendOptions.titleAttrs);
titleBBox = title.getBBox();
title.attr({y: 0.5 * titleBBox.height});
width = legendOptions.marginLeftTitle + titleBBox.width;
height += legendOptions.marginBottomTitle + titleBBox.height;
}
// Calculate attrs (and width, height and r (radius)) for legend elements, and yCenter for horizontal legends
for (i = 0; i < legendOptions.slices.length; ++i) {
var yCenterCurrent = 0;
sliceOptions[i] = $.extend(true, {}, (legendType === "plot") ? self.options.map.defaultPlot : self.options.map.defaultArea, legendOptions.slices[i]);
if (legendOptions.slices[i].legendSpecificAttrs === undefined) {
legendOptions.slices[i].legendSpecificAttrs = {};
}
$.extend(true, sliceOptions[i].attrs, legendOptions.slices[i].legendSpecificAttrs);
if (legendType === "area") {
if (sliceOptions[i].attrs.width === undefined)
sliceOptions[i].attrs.width = 30;
if (sliceOptions[i].attrs.height === undefined)
sliceOptions[i].attrs.height = 20;
} else if (sliceOptions[i].type === "square") {
if (sliceOptions[i].attrs.width === undefined)
sliceOptions[i].attrs.width = sliceOptions[i].size;
if (sliceOptions[i].attrs.height === undefined)
sliceOptions[i].attrs.height = sliceOptions[i].size;
} else if (sliceOptions[i].type === "image" || sliceOptions[i].type === "svg") {
if (sliceOptions[i].attrs.width === undefined)
sliceOptions[i].attrs.width = sliceOptions[i].width;
if (sliceOptions[i].attrs.height === undefined)
sliceOptions[i].attrs.height = sliceOptions[i].height;
} else {
if (sliceOptions[i].attrs.r === undefined)
sliceOptions[i].attrs.r = sliceOptions[i].size / 2;
}
// Compute yCenter for this legend slice
yCenterCurrent = legendOptions.marginBottomTitle;
// Add title height if it exists
if (title) {
yCenterCurrent += titleBBox.height;
}
if (legendType === "plot" && (sliceOptions[i].type === undefined || sliceOptions[i].type === "circle")) {
yCenterCurrent += scale * sliceOptions[i].attrs.r;
} else {
yCenterCurrent += scale * sliceOptions[i].attrs.height / 2;
}
// Update yCenter if current larger
yCenter = Math.max(yCenter, yCenterCurrent);
}
if (legendOptions.mode === "horizontal") {
width = legendOptions.marginLeft;
}
// Draw legend elements (circle, square or image in vertical or horizontal mode)
for (i = 0; i < sliceOptions.length; ++i) {
var legendElem = {};
var legendElemBBox = {};
var legendLabel = {};
if (sliceOptions[i].display === undefined || sliceOptions[i].display === true) {
if (legendType === "area") {
if (legendOptions.mode === "horizontal") {
x = width + legendOptions.marginLeft;
y = yCenter - (0.5 * scale * sliceOptions[i].attrs.height);
} else {
x = legendOptions.marginLeft;
y = height;
}
legendElem = legendPaper.rect(x, y, scale * (sliceOptions[i].attrs.width), scale * (sliceOptions[i].attrs.height));
} else if (sliceOptions[i].type === "square") {
if (legendOptions.mode === "horizontal") {
x = width + legendOptions.marginLeft;
y = yCenter - (0.5 * scale * sliceOptions[i].attrs.height);
} else {
x = legendOptions.marginLeft;
y = height;
}
legendElem = legendPaper.rect(x, y, scale * (sliceOptions[i].attrs.width), scale * (sliceOptions[i].attrs.height));
} else if (sliceOptions[i].type === "image" || sliceOptions[i].type === "svg") {
if (legendOptions.mode === "horizontal") {
x = width + legendOptions.marginLeft;
y = yCenter - (0.5 * scale * sliceOptions[i].attrs.height);
} else {
x = legendOptions.marginLeft;
y = height;
}
if (sliceOptions[i].type === "image") {
legendElem = legendPaper.image(
sliceOptions[i].url, x, y, scale * sliceOptions[i].attrs.width, scale * sliceOptions[i].attrs.height);
} else {
legendElem = legendPaper.path(sliceOptions[i].path);
if (sliceOptions[i].attrs.transform === undefined) {
sliceOptions[i].attrs.transform = "";
}
legendElemBBox = legendElem.getBBox();
sliceOptions[i].attrs.transform = "m" + ((scale * sliceOptions[i].width) / legendElemBBox.width) + ",0,0," + ((scale * sliceOptions[i].height) / legendElemBBox.height) + "," + x + "," + y + sliceOptions[i].attrs.transform;
}
} else {
if (legendOptions.mode === "horizontal") {
x = width + legendOptions.marginLeft + scale * (sliceOptions[i].attrs.r);
y = yCenter;
} else {
x = legendOptions.marginLeft + scale * (sliceOptions[i].attrs.r);
y = height + scale * (sliceOptions[i].attrs.r);
}
legendElem = legendPaper.circle(x, y, scale * (sliceOptions[i].attrs.r));
}
// Set attrs to the element drawn above
delete sliceOptions[i].attrs.width;
delete sliceOptions[i].attrs.height;
delete sliceOptions[i].attrs.r;
legendElem.attr(sliceOptions[i].attrs);
legendElemBBox = legendElem.getBBox();
// Draw the label associated with the element
if (legendOptions.mode === "horizontal") {
x = width + legendOptions.marginLeft + legendElemBBox.width + legendOptions.marginLeftLabel;
y = yCenter;
} else {
x = legendOptions.marginLeft + legendElemBBox.width + legendOptions.marginLeftLabel;
y = height + (legendElemBBox.height / 2);
}
legendLabel = legendPaper.text(x, y, sliceOptions[i].label).attr(legendOptions.labelAttrs);
// Update the width and height for the paper
if (legendOptions.mode === "horizontal") {
var currentHeight = legendOptions.marginBottom + legendElemBBox.height;
width += legendOptions.marginLeft + legendElemBBox.width + legendOptions.marginLeftLabel + legendLabel.getBBox().width;
if (sliceOptions[i].type !== "image" && legendType !== "area") {
currentHeight += legendOptions.marginBottomTitle;
}
// Add title height if it exists
if (title) {
currentHeight += titleBBox.height;
}
height = Math.max(height, currentHeight);
} else {
width = Math.max(width, legendOptions.marginLeft + legendElemBBox.width + legendOptions.marginLeftLabel + legendLabel.getBBox().width);
height += legendOptions.marginBottom + legendElemBBox.height;
}
// Set some data to elements
$(legendElem.node).attr({
"data-legend-id": legendIndex,
"data-legend-type": legendType,
"data-type": "legend-elem",
"data-id": i,
"data-hidden": 0
});
$(legendLabel.node).attr({
"data-legend-id": legendIndex,
"data-legend-type": legendType,
"data-type": "legend-label",
"data-id": i,
"data-hidden": 0
});
// Set array content
// We use similar names like map/plots/links
legendElems[i] = {
mapElem: legendElem,
textElem: legendLabel
};
// Hide map elements when the user clicks on a legend item
if (legendOptions.hideElemsOnClick.enabled) {
// Hide/show elements when user clicks on a legend element
legendLabel.attr({cursor: "pointer"});
legendElem.attr({cursor: "pointer"});
self.setHoverOptions(legendElem, sliceOptions[i].attrs, sliceOptions[i].attrs);
self.setHoverOptions(legendLabel, legendOptions.labelAttrs, legendOptions.labelAttrsHover);
if (sliceOptions[i].clicked !== undefined && sliceOptions[i].clicked === true) {
self.handleClickOnLegendElem(legendElems[i], i, legendIndex, legendType, {hideOtherElems: false});
}
}
}
}
// VMLWidth option allows you to set static width for the legend
// only for VML render because text.getBBox() returns wrong values on IE6/7
if (Raphael.type !== "SVG" && legendOptions.VMLWidth)
width = legendOptions.VMLWidth;
legendPaper.setSize(width, height);
return {
container: $legend,
initialHTMLContent: initialHTMLContent,
elems: legendElems
};
},
/*
* Allow to hide elements of the map when the user clicks on a related legend item
* @param elem legend element
* @param id legend element ID
* @param legendIndex corresponding legend index
* @param legendType corresponding legend type (area or plot)
* @param opts object additionnal options
* hideOtherElems boolean, if other elems shall be hidden
* animDuration duration of animation
*/
handleClickOnLegendElem: function(elem, id, legendIndex, legendType, opts) {
var self = this;
var legendOptions;
opts = opts || {};
if (!$.isArray(self.options.legend[legendType])) {
legendOptions = self.options.legend[legendType];
} else {
legendOptions = self.options.legend[legendType][legendIndex];
}
var legendElem = elem.mapElem;
var legendLabel = elem.textElem;
var $legendElem = $(legendElem.node);
var $legendLabel = $(legendLabel.node);
var sliceOptions = legendOptions.slices[id];
var mapElems = legendType === 'area' ? self.areas : self.plots;
// Check animDuration: if not set, this is a regular click, use the value specified in options
var animDuration = opts.animDuration !== undefined ? opts.animDuration : legendOptions.hideElemsOnClick.animDuration ;
var hidden = $legendElem.attr('data-hidden');
var hiddenNewAttr = (hidden === '0') ? {"data-hidden": '1'} : {"data-hidden": '0'};
if (hidden === '0') {
self.animate(legendLabel, {"opacity": 0.5}, animDuration);
} else {
self.animate(legendLabel, {"opacity": 1}, animDuration);
}
$.each(mapElems, function (y) {
var elemValue;
// Retreive stored data of element
// 'hidden-by' contains the list of legendIndex that is hiding this element
var hiddenBy = mapElems[y].mapElem.data('hidden-by');
// Set to empty object if undefined
if (hiddenBy === undefined) hiddenBy = {};
if ($.isArray(mapElems[y].options.value)) {
elemValue = mapElems[y].options.value[legendIndex];
} else {
elemValue = mapElems[y].options.value;
}
// Hide elements whose value matches with the slice of the clicked legend item
if (self.getLegendSlice(elemValue, legendOptions) === sliceOptions) {
if (hidden === '0') { // we want to hide this element
hiddenBy[legendIndex] = true; // add legendIndex to the data object for later use
self.setElementOpacity(mapElems[y], legendOptions.hideElemsOnClick.opacity, animDuration);
} else { // We want to show this element
delete hiddenBy[legendIndex]; // Remove this legendIndex from object
// Check if another legendIndex is defined
// We will show this element only if no legend is no longer hiding it
if ($.isEmptyObject(hiddenBy)) {
self.setElementOpacity(
mapElems[y],
mapElems[y].mapElem.originalAttrs.opacity !== undefined ? mapElems[y].mapElem.originalAttrs.opacity : 1,
animDuration
);
}
}
// Update elem data with new values
mapElems[y].mapElem.data('hidden-by', hiddenBy);
}
});
$legendElem.attr(hiddenNewAttr);
$legendLabel.attr(hiddenNewAttr);
if ((opts.hideOtherElems === undefined || opts.hideOtherElems === true) && legendOptions.exclusive === true ) {
$("[data-type='legend-elem'][data-hidden=0]", self.$container).each(function () {
var $elem = $(this);
if ($elem.attr('data-id') !== id) {
$elem.trigger("click", {hideOtherElems: false});
}
});
}
},
/*
* Create all legends for a specified type (area or plot)
* @param legendType the type of the legend : "area" or "plot"
* @param elems collection of plots or areas displayed on the map
* @param scale scale ratio of the map
*/
createLegends: function (legendType, elems, scale) {
var self = this;
var legendsOptions = self.options.legend[legendType];
if (!$.isArray(self.options.legend[legendType])) {
legendsOptions = [self.options.legend[legendType]];
}
self.legends[legendType] = {};
for (var j = 0; j < legendsOptions.length; ++j) {
if (legendsOptions[j].display === true && $.isArray(legendsOptions[j].slices) && legendsOptions[j].slices.length > 0 &&
legendsOptions[j].cssClass !== "" && $("." + legendsOptions[j].cssClass, self.$container).length !== 0
) {
self.legends[legendType][j] = self.drawLegend(legendsOptions[j], legendType, elems, scale, j);
}
}
},
/*
* Set the attributes on hover and the attributes to restore for a map element
* @param elem the map element
* @param originalAttrs the original attributes to restore on mouseout event
* @param attrsHover the attributes to set on mouseover event
*/
setHoverOptions: function (elem, originalAttrs, attrsHover) {
// Disable transform option on hover for VML (IE<9) because of several bugs
if (Raphael.type !== "SVG") delete attrsHover.transform;
elem.attrsHover = attrsHover;
if (elem.attrsHover.transform) elem.originalAttrs = $.extend({transform: "s1"}, originalAttrs);
else elem.originalAttrs = originalAttrs;
},
/*
* Set the behaviour when mouse enters element ("mouseover" event)
* It may be an area, a plot, a link or a legend element
* @param elem the map element
*/
elemEnter: function (elem) {
var self = this;
if (elem === undefined) return;
/* Handle mapElem Hover attributes */
if (elem.mapElem !== undefined) {
self.animate(elem.mapElem, elem.mapElem.attrsHover, elem.mapElem.attrsHover.animDuration);
}
/* Handle textElem Hover attributes */
if (elem.textElem !== undefined) {
self.animate(elem.textElem, elem.textElem.attrsHover, elem.textElem.attrsHover.animDuration);
}
/* Handle tooltip init */
if (elem.options && elem.options.tooltip !== undefined) {
var content = '';
// Reset classes
self.$tooltip.removeClass().addClass(self.options.map.tooltip.cssClass);
// Get content
if (elem.options.tooltip.content !== undefined) {
// if tooltip.content is function, call it. Otherwise, assign it directly.
if (typeof elem.options.tooltip.content === "function") content = elem.options.tooltip.content(elem.mapElem);
else content = elem.options.tooltip.content;
}
if (elem.options.tooltip.cssClass !== undefined) {
self.$tooltip.addClass(elem.options.tooltip.cssClass);
}
self.$tooltip.html(content).css("display", "block");
}
// workaround for older version of Raphael
if (elem.mapElem !== undefined || elem.textElem !== undefined) {
if (self.paper.safari) self.paper.safari();
}
},
/*
* Set the behaviour when mouse moves in element ("mousemove" event)
* @param elem the map element
*/
elemHover: function (elem, event) {
var self = this;
if (elem === undefined) return;
/* Handle tooltip position update */
if (elem.options.tooltip !== undefined) {
var mouseX = event.pageX;
var mouseY = event.pageY;
var offsetLeft = 10;
var offsetTop = 20;
if (typeof elem.options.tooltip.offset === "object") {
if (typeof elem.options.tooltip.offset.left !== "undefined") {
offsetLeft = elem.options.tooltip.offset.left;
}
if (typeof elem.options.tooltip.offset.top !== "undefined") {
offsetTop = elem.options.tooltip.offset.top;
}
}
var tooltipPosition = {
"left": Math.min(self.$map.width() - self.$tooltip.outerWidth() - 5,
mouseX - self.$map.offset().left + offsetLeft),
"top": Math.min(self.$map.height() - self.$tooltip.outerHeight() - 5,
mouseY - self.$map.offset().top + offsetTop)
};
if (typeof elem.options.tooltip.overflow === "object") {
if (elem.options.tooltip.overflow.right === true) {
tooltipPosition.left = mouseX - self.$map.offset().left + 10;
}
if (elem.options.tooltip.overflow.bottom === true) {
tooltipPosition.top = mouseY - self.$map.offset().top + 20;
}
}
self.$tooltip.css(tooltipPosition);
}
},
/*
* Set the behaviour when mouse leaves element ("mouseout" event)
* It may be an area, a plot, a link or a legend element
* @param elem the map element
*/
elemOut: function (elem) {
var self = this;
if (elem === undefined) return;
/* reset mapElem attributes */
if (elem.mapElem !== undefined) {
self.animate(elem.mapElem, elem.mapElem.originalAttrs, elem.mapElem.attrsHover.animDuration);
}
/* reset textElem attributes */
if (elem.textElem !== undefined) {
self.animate(elem.textElem, elem.textElem.originalAttrs, elem.textElem.attrsHover.animDuration);
}
/* reset tooltip */
if (elem.options && elem.options.tooltip !== undefined) {
self.$tooltip.css({
'display': 'none',
'top': -1000,
'left': -1000
});
}
// workaround for older version of Raphael
if (elem.mapElem !== undefined || elem.textElem !== undefined) {
if (self.paper.safari) self.paper.safari();
}
},
/*
* Set the behaviour when mouse clicks element ("click" event)
* It may be an area, a plot or a link (but not a legend element which has its own function)
* @param elem the map element
*/
elemClick: function (elem) {
var self = this;
if (elem === undefined) return;
/* Handle click when href defined */
if (!self.panning && elem.options.href !== undefined) {
window.open(elem.options.href, elem.options.target);
}
},
/*
* Get element options by merging default options, element options and legend options
* @param defaultOptions
* @param elemOptions
* @param legendOptions
*/
getElemOptions: function (defaultOptions, elemOptions, legendOptions) {
var self = this;
var options = $.extend(true, {}, defaultOptions, elemOptions);
if (options.value !== undefined) {
if ($.isArray(legendOptions)) {
for (var i = 0; i < legendOptions.length; ++i) {
options = $.extend(true, {}, options, self.getLegendSlice(options.value[i], legendOptions[i]));
}
} else {
options = $.extend(true, {}, options, self.getLegendSlice(options.value, legendOptions));
}
}
return options;
},
/*
* Get the coordinates of the text relative to a bbox and a position
* @param bbox the boundary box of the element
* @param textPosition the wanted text position (inner, right, left, top or bottom)
* @param margin number or object {x: val, y:val} margin between the bbox and the text
*/
getTextPosition: function (bbox, textPosition, margin) {
var textX = 0;
var textY = 0;
var textAnchor = "";
if (typeof margin === "number") {
if (textPosition === "bottom" || textPosition === "top") {
margin = {x: 0, y: margin};
} else if (textPosition === "right" || textPosition === "left") {
margin = {x: margin, y: 0};
} else {
margin = {x: 0, y: 0};
}
}
switch (textPosition) {
case "bottom" :
textX = ((bbox.x + bbox.x2) / 2) + margin.x;
textY = bbox.y2 + margin.y;
textAnchor = "middle";
break;
case "top" :
textX = ((bbox.x + bbox.x2) / 2) + margin.x;
textY = bbox.y - margin.y;
textAnchor = "middle";
break;
case "left" :
textX = bbox.x - margin.x;
textY = ((bbox.y + bbox.y2) / 2) + margin.y;
textAnchor = "end";
break;
case "right" :
textX = bbox.x2 + margin.x;
textY = ((bbox.y + bbox.y2) / 2) + margin.y;
textAnchor = "start";
break;
default : // "inner" position
textX = ((bbox.x + bbox.x2) / 2) + margin.x;
textY = ((bbox.y + bbox.y2) / 2) + margin.y;
textAnchor = "middle";
}
return {"x": textX, "y": textY, "textAnchor": textAnchor};
},
/*
* Get the legend conf matching with the value
* @param value the value to match with a slice in the legend
* @param legend the legend params object
* @return the legend slice matching with the value
*/
getLegendSlice: function (value, legend) {
for (var i = 0; i < legend.slices.length; ++i) {
if ((legend.slices[i].sliceValue !== undefined && value === legend.slices[i].sliceValue) ||
((legend.slices[i].sliceValue === undefined) &&
(legend.slices[i].min === undefined || value >= legend.slices[i].min) &&
(legend.slices[i].max === undefined || value <= legend.slices[i].max))
) {
return legend.slices[i];
}
}
return {};
},
/*
* Animated view box changes
* As from http://code.voidblossom.com/animating-viewbox-easing-formulas/,
* (from https://github.com/theshaun works on mapael)
* @param x coordinate of the point to focus on
* @param y coordinate of the point to focus on
* @param w map defined width
* @param h map defined height
* @param duration defined length of time for animation
* @param easingFunction defined Raphael supported easing_formula to use
*/
animateViewBox: function (targetX, targetY, targetW, targetH, duration, easingFunction) {
var self = this;
var cx = self.currentViewBox.x;
var dx = targetX - cx;
var cy = self.currentViewBox.y;
var dy = targetY - cy;
var cw = self.currentViewBox.w;
var dw = targetW - cw;
var ch = self.currentViewBox.h;
var dh = targetH - ch;
// Init current ViewBox target if undefined
if (!self.zoomAnimCVBTarget) {
self.zoomAnimCVBTarget = {
x: targetX, y: targetY, w: targetW, h: targetH
};
}
// Determine zoom direction by comparig current vs. target width
var zoomDir = (cw > targetW) ? 'in' : 'out';
var easingFormula = Raphael.easing_formulas[easingFunction || "linear"];
// To avoid another frame when elapsed time approach end (2%)
var durationWithMargin = duration - (duration * 2 / 100);
// Save current zoomAnimStartTime before assigning a new one
var oldZoomAnimStartTime = self.zoomAnimStartTime;
self.zoomAnimStartTime = (new Date()).getTime();
/* Actual function to animate the ViewBox
* Uses requestAnimationFrame to schedule itself again until animation is over
*/
var computeNextStep = function () {
// Cancel any remaining animationFrame
// It means this new step will take precedence over the old one scheduled
// This is the case when the user is triggering the zoom fast (e.g. with a big mousewheel run)
// This actually does nothing when performing a single zoom action
self.cancelAnimationFrame(self.zoomAnimID);
// Compute elapsed time
var elapsed = (new Date()).getTime() - self.zoomAnimStartTime;
// Check if animation should finish
if (elapsed < durationWithMargin) {
// Hold the future ViewBox values
var x, y, w, h;
// There are two ways to compute the next ViewBox size
// 1. If the target ViewBox has changed between steps (=> ADAPTATION step)
// 2. Or if the target ViewBox is the same (=> NORMAL step)
//
// A change of ViewBox target between steps means the user is triggering
// the zoom fast (like a big scroll with its mousewheel)
//
// The new animation step with the new target will always take precedence over the
// last one and start from 0 (we overwrite zoomAnimStartTime and cancel the scheduled frame)
//
// So if we don't detect the change of target and adapt our computation,
// the user will see a delay at beginning the ratio will stays at 0 for some frames
//
// Hence when detecting the change of target, we animate from the previous target.
//
// The next step will then take the lead and continue from there, achieving a nicer
// experience for user.
// Change of target IF: an old animation start value exists AND the target has actually changed
if (oldZoomAnimStartTime && self.zoomAnimCVBTarget && self.zoomAnimCVBTarget.w !== targetW) {
// Compute the real time elapsed with the last step
var realElapsed = (new Date()).getTime() - oldZoomAnimStartTime;
// Compute then the actual ratio we're at
var realRatio = easingFormula(realElapsed / duration);
// Compute new ViewBox values
// The difference with the normal function is regarding the delta value used
// We don't take the current (dx, dy, dw, dh) values yet because they are related to the new target
// But we take the old target
x = cx + (self.zoomAnimCVBTarget.x - cx) * realRatio;
y = cy + (self.zoomAnimCVBTarget.y - cy) * realRatio;
w = cw + (self.zoomAnimCVBTarget.w - cw) * realRatio;
h = ch + (self.zoomAnimCVBTarget.h - ch) * realRatio;
// Update cw, cy, cw and ch so the next step take animation from here
cx = x;
dx = targetX - cx;
cy = y;
dy = targetY - cy;
cw = w;
dw = targetW - cw;
ch = h;
dh = targetH - ch;
// Update the current ViewBox target
self.zoomAnimCVBTarget = {
x: targetX, y: targetY, w: targetW, h: targetH
};
} else {
// This is the classical approach when nothing come interrupting the zoom
// Compute ratio according to elasped time and easing formula
var ratio = easingFormula(elapsed / duration);
// From the current value, we add a delta with a ratio that will leads us to the target
x = cx + dx * ratio;
y = cy + dy * ratio;
w = cw + dw * ratio;
h = ch + dh * ratio;
}
// Some checks before applying the new viewBox
if (zoomDir === 'in' && (w > self.currentViewBox.w || w < targetW)) {
// Zooming IN and the new ViewBox seems larger than the current value, or smaller than target value
// We do NOT set the ViewBox with this value
// Otherwise, the user would see the camera going back and forth
} else if (zoomDir === 'out' && (w < self.currentViewBox.w || w > targetW)) {
// Zooming OUT and the new ViewBox seems smaller than the current value, or larger than target value
// We do NOT set the ViewBox with this value
// Otherwise, the user would see the camera going back and forth
} else {
// New values look good, applying
self.setViewBox(x, y, w, h);
}
// Schedule the next step
self.zoomAnimID = self.requestAnimationFrame(computeNextStep);
} else {
/* Zoom animation done ! */
// Perform some cleaning
self.zoomAnimStartTime = null;
self.zoomAnimCVBTarget = null;
// Make sure the ViewBox hits the target!
if (self.currentViewBox.w !== targetW) {
self.setViewBox(targetX, targetY, targetW, targetH);
}
// Finally trigger afterZoom event
self.$map.trigger("afterZoom", {
x1: targetX, y1: targetY,
x2: (targetX + targetW), y2: (targetY + targetH)
});
}
};
// Invoke the first step directly
computeNextStep();
},
/*
* requestAnimationFrame/cancelAnimationFrame polyfill
* Based on https://gist.github.com/jlmakes/47eba84c54bc306186ac1ab2ffd336d4
* and also https://gist.github.com/paulirish/1579671
*
* _requestAnimationFrameFn and _cancelAnimationFrameFn hold the current functions
* But requestAnimationFrame and cancelAnimationFrame shall be called since
* in order to be in window context
*/
// The function to use for requestAnimationFrame
requestAnimationFrame: function(callback) {
return this._requestAnimationFrameFn.call(window, callback);
},
// The function to use for cancelAnimationFrame
cancelAnimationFrame: function(id) {
this._cancelAnimationFrameFn.call(window, id);
},
// The requestAnimationFrame polyfill'd function
// Value set by self-invoking function, will be run only once
_requestAnimationFrameFn: (function () {
var polyfill = (function () {
var clock = (new Date()).getTime();
return function (callback) {
var currentTime = (new Date()).getTime();
// requestAnimationFrame strive to run @60FPS
// (e.g. every 16 ms)
if (currentTime - clock > 16) {
clock = currentTime;
callback(currentTime);
} else {
// Ask browser to schedule next callback when possible
return setTimeout(function () {
polyfill(callback);
}, 0);
}
};
})();
return window.requestAnimationFrame ||
window.webkitRequestAnimationFrame ||
window.mozRequestAnimationFrame ||
window.msRequestAnimationFrame ||
window.oRequestAnimationFrame ||
polyfill;
})(),
// The CancelAnimationFrame polyfill'd function
// Value set by self-invoking function, will be run only once
_cancelAnimationFrameFn: (function () {
return window.cancelAnimationFrame ||
window.webkitCancelAnimationFrame ||
window.webkitCancelRequestAnimationFrame ||
window.mozCancelAnimationFrame ||
window.mozCancelRequestAnimationFrame ||
window.msCancelAnimationFrame ||
window.msCancelRequestAnimationFrame ||
window.oCancelAnimationFrame ||
window.oCancelRequestAnimationFrame ||
clearTimeout;
})(),
/*
* SetViewBox wrapper
* Apply new viewbox values and keep track of them
*
* This avoid using the internal variable paper._viewBox which
* may not be present in future version of Raphael
*/
setViewBox: function(x, y, w, h) {
var self = this;
// Update current value
self.currentViewBox.x = x;
self.currentViewBox.y = y;
self.currentViewBox.w = w;
self.currentViewBox.h = h;
// Perform set view box
self.paper.setViewBox(x, y, w, h, false);
},
/*
* Animate wrapper for Raphael element
*
* Perform an animation and ensure the non-animated attr are set.
* This is needed for specific attributes like cursor who will not
* be animated, and thus not set.
*
* If duration is set to 0 (or not set), no animation are performed
* and attributes are directly set (and the callback directly called)
*/
// List extracted from Raphael internal vars
// Diff between Raphael.availableAttrs and Raphael._availableAnimAttrs
_nonAnimatedAttrs: [
"arrow-end", "arrow-start", "gradient",
"class", "cursor", "text-anchor",
"font", "font-family", "font-style", "font-weight", "letter-spacing",
"src", "href", "target", "title",
"stroke-dasharray", "stroke-linecap", "stroke-linejoin", "stroke-miterlimit"
],
/*
* @param element Raphael element
* @param attrs Attributes object to animate
* @param duration Animation duration in ms
* @param callback Callback to eventually call after animation is done
*/
animate: function(element, attrs, duration, callback) {
var self = this;
// Check element
if (!element) return;
if (duration > 0) {
// Filter out non-animated attributes
// Note: we don't need to delete from original attribute (they won't be set anyway)
var attrsNonAnimated = {};
for (var i=0 ; i < self._nonAnimatedAttrs.length ; i++) {
var attrName = self._nonAnimatedAttrs[i];
if (attrs[attrName] !== undefined) {
attrsNonAnimated[attrName] = attrs[attrName];
}
}
// Set non-animated attributes
element.attr(attrsNonAnimated);
// Start animation for all attributes
element.animate(attrs, duration, 'linear', function() {
if (callback) callback();
});
} else {
// No animation: simply set all attributes...
element.attr(attrs);
// ... and call the callback if needed
if (callback) callback();
}
},
/*
* Check for Raphael bug regarding drawing while beeing hidden (under display:none)
* See https://github.com/neveldo/jQuery-Mapael/issues/135
* @return true/false
*
* Wants to override this behavior? Use prototype overriding:
* $.mapael.prototype.isRaphaelBBoxBugPresent = function() {return false;};
*/
isRaphaelBBoxBugPresent: function() {
var self = this;
// Draw text, then get its boundaries
var textElem = self.paper.text(-50, -50, "TEST");
var textElemBBox = textElem.getBBox();
// remove element
textElem.remove();
// If it has no height and width, then the paper is hidden
return (textElemBBox.width === 0 && textElemBBox.height === 0);
},
// Default map options
defaultOptions: {
map: {
cssClass: "map",
tooltip: {
cssClass: "mapTooltip"
},
defaultArea: {
attrs: {
fill: "#343434",
stroke: "#5d5d5d",
"stroke-width": 1,
"stroke-linejoin": "round"
},
attrsHover: {
fill: "#f38a03",
animDuration: 300
},
text: {
position: "inner",
margin: 10,
attrs: {
"font-size": 15,
fill: "#c7c7c7"
},
attrsHover: {
fill: "#eaeaea",
"animDuration": 300
}
},
target: "_self",
cssClass: "area"
},
defaultPlot: {
type: "circle",
size: 15,
attrs: {
fill: "#0088db",
stroke: "#fff",
"stroke-width": 0,
"stroke-linejoin": "round"
},
attrsHover: {
"stroke-width": 3,
animDuration: 300
},
text: {
position: "right",
margin: 10,
attrs: {
"font-size": 15,
fill: "#c7c7c7"
},
attrsHover: {
fill: "#eaeaea",
animDuration: 300
}
},
target: "_self",
cssClass: "plot"
},
defaultLink: {
factor: 0.5,
attrs: {
stroke: "#0088db",
"stroke-width": 2
},
attrsHover: {
animDuration: 300
},
text: {
position: "inner",
margin: 10,
attrs: {
"font-size": 15,
fill: "#c7c7c7"
},
attrsHover: {
fill: "#eaeaea",
animDuration: 300
}
},
target: "_self",
cssClass: "link"
},
zoom: {
enabled: false,
minLevel: 0,
maxLevel: 10,
step: 0.25,
mousewheel: true,
touch: true,
animDuration: 200,
animEasing: "linear",
buttons: {
"reset": {
cssClass: "zoomButton zoomReset",
content: "•", // bullet sign
title: "Reset zoom"
},
"in": {
cssClass: "zoomButton zoomIn",
content: "+",
title: "Zoom in"
},
"out": {
cssClass: "zoomButton zoomOut",
content: "−", // minus sign
title: "Zoom out"
}
}
}
},
legend: {
redrawOnResize: true,
area: [],
plot: []
},
areas: {},
plots: {},
links: {}
},
// Default legends option
legendDefaultOptions: {
area: {
cssClass: "areaLegend",
display: true,
marginLeft: 10,
marginLeftTitle: 5,
marginBottomTitle: 10,
marginLeftLabel: 10,
marginBottom: 10,
titleAttrs: {
"font-size": 16,
fill: "#343434",
"text-anchor": "start"
},
labelAttrs: {
"font-size": 12,
fill: "#343434",
"text-anchor": "start"
},
labelAttrsHover: {
fill: "#787878",
animDuration: 300
},
hideElemsOnClick: {
enabled: true,
opacity: 0.2,
animDuration: 300
},
slices: [],
mode: "vertical"
},
plot: {
cssClass: "plotLegend",
display: true,
marginLeft: 10,
marginLeftTitle: 5,
marginBottomTitle: 10,
marginLeftLabel: 10,
marginBottom: 10,
titleAttrs: {
"font-size": 16,
fill: "#343434",
"text-anchor": "start"
},
labelAttrs: {
"font-size": 12,
fill: "#343434",
"text-anchor": "start"
},
labelAttrsHover: {
fill: "#787878",
animDuration: 300
},
hideElemsOnClick: {
enabled: true,
opacity: 0.2,
animDuration: 300
},
slices: [],
mode: "vertical"
}
}
};
// Mapael version number
// Accessible as $.mapael.version
Mapael.version = version;
// Extend jQuery with Mapael
if ($[pluginName] === undefined) $[pluginName] = Mapael;
// Add jQuery DOM function
$.fn[pluginName] = function (options) {
// Call Mapael on each element
return this.each(function () {
// Avoid leaking problem on multiple instanciation by removing an old mapael object on a container
if ($.data(this, pluginName)) {
$.data(this, pluginName).destroy();
}
// Create Mapael and save it as jQuery data
// This allow external access to Mapael using $(".mapcontainer").data("mapael")
$.data(this, pluginName, new Mapael(this, options));
});
};
return Mapael;
}));
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