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(function() { |
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// holds a function queue to call once page is loaded |
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function Main() { |
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|
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var ready = false; |
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var callbacks = []; |
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|
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/** |
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* this function mirrors the array appending function |
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* so that we can at least append functions to a global array |
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* before the maps are ready to be rendered |
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* |
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* All shortcodes should execute the following: |
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* window.WPLeafletMapPlugin = window.WPLeafletMapPlugin || []; |
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* window.WPLeafletMapPlugin.push(function () { |
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* |
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* Think of it as a whenReady callback |
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*/ |
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this.push = function(fnc) { |
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if (ready) { |
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fnc(); |
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} else { |
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callbacks.push(fnc); |
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} |
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}; |
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|
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/** |
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* execute all callbacks once page/Leaflet is loaded |
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*/ |
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this.init = function() { |
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ready = true; |
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for (var i = 0, len = callbacks.length; i < len; i++) { |
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callbacks[i](); |
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} |
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} |
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|
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/** |
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* maps are created iteratively, so the last map is the current map |
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*/ |
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this.getCurrentMap = function () { |
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return this.maps[this.maps.length - 1]; |
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}; |
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|
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this.getCurrentMarkerGroup = function () { |
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// marker groups are mapid -> feature group |
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var mapid = this.maps.length; |
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if (!this.markergroups[mapid]) { |
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this.markergroups[mapid] = this.newMarkerGroup(this.maps[mapid - 1]); |
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} |
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return this.markergroups[mapid]; |
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}; |
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|
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this.getGroup = function (map) { |
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return new L.FeatureGroup().addTo(map); |
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}; |
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|
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this.newMarkerGroup = function (map) { |
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var mg = this.getGroup(map); |
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|
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mg.timeout = null; |
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|
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// custom attribute |
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if (map.fit_markers) { |
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mg.on('layeradd', function (d) { |
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// needs a timeout so that it doesn't |
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// opt out of a bound change |
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window.clearTimeout(this.timeout); |
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this.timeout = window.setTimeout(function() { |
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map.fitBounds(mg.getBounds()); |
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}, 100); |
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}, mg); |
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} |
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|
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return mg; |
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}; |
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|
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this.unescape = function (str) { |
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var div = document.createElement('div'); |
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div.innerHTML = str; |
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return div.innerText; |
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}; |
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|
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// these accessible properties hold map objects |
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this.maps = []; |
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this.images = []; |
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this.markergroups = {}; |
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this.markers = []; |
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this.lines = []; |
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} |
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|
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/** |
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* window.WPLeafletMapPlugin can be used, by saving arguments, |
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* before it is officially initialized |
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* |
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* This is used to deal with the potential for deferred scripts |
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*/ |
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var original = window.WPLeafletMapPlugin; |
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window.WPLeafletMapPlugin = new Main(); |
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|
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// check for functions to execute |
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if (!!original) { |
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for (var i = 0, len = original.length; i < len; i++) { |
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window.WPLeafletMapPlugin.push(original[i]); |
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} |
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|
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// empty the array |
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original.splice(0); |
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|
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// re-add any methods that may have been added to the original |
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for (var k in original) { |
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if (original.hasOwnProperty(k)) { |
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window.WPLeafletMapPlugin[k] = original[k]; |
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} |
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} |
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} |
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|
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// onload waits for Leaflet to load |
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if (window.addEventListener) { |
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window.addEventListener('load', window.WPLeafletMapPlugin.init, false); |
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} else if (window.attachEvent) { |
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window.attachEvent('onload', window.WPLeafletMapPlugin.init); |
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} |
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})(); |
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|
