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397
js/styledLayerControl.js
Normal file
397
js/styledLayerControl.js
Normal file
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L.Control.StyledLayerControl = L.Control.Layers.extend({
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options : {
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collapsed : true,
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position : 'topright',
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autoZIndex : true
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},
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initialize : function (baseLayers, groupedOverlays, options) {
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var i,
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j;
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L.Util.setOptions(this, options);
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this._layers = {};
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this._lastZIndex = 0;
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this._handlingClick = false;
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this._groupList = [];
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this._domGroups = [];
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for (i in groupedOverlays) {
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for (var j in groupedOverlays[i].layers) {
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this._addLayer(groupedOverlays[i].layers[j], j, groupedOverlays[i], true);
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}
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}
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for (i in baseLayers) {
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for (var j in baseLayers[i].layers) {
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this._addLayer(baseLayers[i].layers[j], j, baseLayers[i], false);
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}
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}
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},
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onAdd : function (map) {
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this._initLayout();
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this._update();
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map
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.on('layeradd', this._onLayerChange, this)
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.on('layerremove', this._onLayerChange, this);
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return this._container;
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},
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onRemove : function (map) {
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map
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.off('layeradd', this._onLayerChange)
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.off('layerremove', this._onLayerChange);
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},
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addBaseLayer : function (layer, name, group) {
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this._addLayer(layer, name, group, false);
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this._update();
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return this;
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},
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addOverlay : function (layer, name, group) {
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this._addLayer(layer, name, group, true);
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this._update();
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return this;
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},
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removeLayer : function (layer) {
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var id = L.Util.stamp(layer);
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delete this._layers[id];
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this._update();
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return this;
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},
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removeGroup : function (group_Name){
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for(group in this._groupList){
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if( this._groupList[group].groupName == group_Name ){
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for(layer in this._layers){
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if( this._layers[layer].group && this._layers[layer].group.name == group_Name ){
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delete this._layers[layer];
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}
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}
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delete this._groupList[group];
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this._update();
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break;
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}
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}
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},
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_initLayout : function () {
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var className = 'leaflet-control-layers',
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container = this._container = L.DomUtil.create('div', className);
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//Makes this work on IE10 Touch devices by stopping it from firing a mouseout event when the touch is released
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container.setAttribute('aria-haspopup', true);
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if (!L.Browser.touch) {
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L.DomEvent.disableClickPropagation(container);
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L.DomEvent.on(container, 'wheel', L.DomEvent.stopPropagation);
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} else {
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L.DomEvent.on(container, 'click', L.DomEvent.stopPropagation);
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}
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var section = document.createElement('section');
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section.className = 'ac-container ' + className + '-list';
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var form = this._form = L.DomUtil.create('form');
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section.appendChild( form );
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if (this.options.collapsed) {
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if (!L.Browser.android) {
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L.DomEvent
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.on(container, 'mouseover', this._expand, this)
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.on(container, 'mouseout', this._collapse, this);
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}
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var link = this._layersLink = L.DomUtil.create('a', className + '-toggle', container);
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link.href = '#';
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link.title = 'Layers';
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if (L.Browser.touch) {
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L.DomEvent
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.on(link, 'click', L.DomEvent.stop)
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.on(link, 'click', this._expand, this);
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} else {
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L.DomEvent.on(link, 'focus', this._expand, this);
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}
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this._map.on('click', this._collapse, this);
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// TODO keyboard accessibility
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} else {
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this._expand();
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}
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this._baseLayersList = L.DomUtil.create('div', className + '-base', form);
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this._overlaysList = L.DomUtil.create('div', className + '-overlays', form);
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container.appendChild(section);
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// process options of ac-container css class - to options.container_width and options.container_maxHeight
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for(var c = 0; c < (containers = container.getElementsByClassName('ac-container')).length; c++ ){
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if (this.options.container_width) {
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containers[c].style.width = this.options.container_width;
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}
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// set the max-height of control to y value of map object
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this._default_maxHeight = this.options.container_maxHeight ? this.options.container_maxHeight : (this._map._size.y - 70);
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containers[c].style.maxHeight = this._default_maxHeight + "px";
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}
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window.onresize = this._on_resize_window.bind(this);
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},
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_on_resize_window : function(){
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// listen to resize of screen to reajust de maxHeight of container
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for(var c = 0; c < containers.length; c++ ){
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// input the new value to height
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containers[c].style.maxHeight = (window.innerHeight-90) < this._default_maxHeight ? (window.innerHeight - 90) + "px" : this._default_maxHeight + "px";
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}
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},
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_addLayer : function (layer, name, group, overlay) {
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var id = L.Util.stamp(layer);
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this._layers[id] = {
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layer : layer,
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name : name,
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overlay : overlay
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};
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if (group) {
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var groupId = this._groupList.indexOf(group);
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// if not find the group search for the name
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if( groupId === -1 ){
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for( g in this._groupList){
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if( this._groupList[g].groupName == group.groupName ){
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groupId = g;
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break;
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}
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}
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}
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if (groupId === -1) {
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groupId = this._groupList.push(group) - 1;
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}
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this._layers[id].group = {
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name : group.groupName,
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id : groupId,
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expanded : group.expanded
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};
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}
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if (this.options.autoZIndex && layer.setZIndex) {
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this._lastZIndex++;
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layer.setZIndex(this._lastZIndex);
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}
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},
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_update : function () {
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if (!this._container) {
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return;
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}
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this._baseLayersList.innerHTML = '';
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this._overlaysList.innerHTML = '';
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this._domGroups.length = 0;
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var baseLayersPresent = false,
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overlaysPresent = false,
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i,
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obj;
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for (i in this._layers) {
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obj = this._layers[i];
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this._addItem(obj);
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overlaysPresent = overlaysPresent || obj.overlay;
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baseLayersPresent = baseLayersPresent || !obj.overlay;
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}
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},
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_onLayerChange : function (e) {
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var obj = this._layers[L.Util.stamp(e.layer)];
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if (!obj) {
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return;
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}
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if (!this._handlingClick) {
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this._update();
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}
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var type = obj.overlay ?
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(e.type === 'layeradd' ? 'overlayadd' : 'overlayremove') :
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(e.type === 'layeradd' ? 'baselayerchange' : null);
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if (type) {
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this._map.fire(type, obj);
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}
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},
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// IE7 bugs out if you create a radio dynamically, so you have to do it this hacky way (see http://bit.ly/PqYLBe)
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_createRadioElement : function (name, checked) {
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var radioHtml = '<input type="radio" class="leaflet-control-layers-selector" name="' + name + '"';
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if (checked) {
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radioHtml += ' checked="checked"';
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}
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radioHtml += '/>';
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var radioFragment = document.createElement('div');
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radioFragment.innerHTML = radioHtml;
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return radioFragment.firstChild;
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},
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_addItem : function (obj) {
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var label = document.createElement('div'),
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input,
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checked = this._map.hasLayer(obj.layer),
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container;
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if (obj.overlay) {
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input = document.createElement('input');
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input.type = 'checkbox';
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input.className = 'leaflet-control-layers-selector';
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input.defaultChecked = checked;
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label.className = "menu-item-checkbox";
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} else {
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input = this._createRadioElement('leaflet-base-layers', checked);
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label.className = "menu-item-radio";
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}
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input.layerId = L.Util.stamp(obj.layer);
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L.DomEvent.on(input, 'click', this._onInputClick, this);
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var name = document.createElement('span');
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name.innerHTML = ' ' + obj.name;
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label.appendChild(input);
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label.appendChild(name);
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// configure the delete button for layers with attribute removable = true
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if( obj.layer.StyledLayerControl && obj.layer.StyledLayerControl.removable ){
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var bt_delete = document.createElement("input");
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bt_delete.type = "button";
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bt_delete.className = "bt_delete";
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L.DomEvent.on(bt_delete, 'click', this._onDeleteClick, this);
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label.appendChild(bt_delete);
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}
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if (obj.overlay) {
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container = this._overlaysList;
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} else {
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container = this._baseLayersList;
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}
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var groupContainer = this._domGroups[obj.group.id];
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if (!groupContainer) {
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groupContainer = document.createElement('div');
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groupContainer.id = 'leaflet-control-accordion-layers-' + obj.group.id;
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// verify if group is expanded
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var s_expanded = obj.group.expanded ? ' checked = "true" ' : '';
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// verify if type is exclusive
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var s_type_exclusive = this.options.exclusive ? ' type="radio" ' : ' type="checkbox" ';
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inputElement = '<input id="ac' + obj.group.id + '" name="accordion-1" class="menu" ' + s_expanded + s_type_exclusive + '/>';
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inputLabel = '<label for="ac' + obj.group.id + '">' + obj.group.name + '</label>';
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article = document.createElement('article');
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article.className = 'ac-large';
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article.appendChild( label );
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// process options of ac-large css class - to options.group_maxHeight property
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if(this.options.group_maxHeight){
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article.style.maxHeight = this.options.group_maxHeight;
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}
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groupContainer.innerHTML = inputElement + inputLabel;
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groupContainer.appendChild( article );
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container.appendChild(groupContainer);
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this._domGroups[obj.group.id] = groupContainer;
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} else {
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groupContainer.lastElementChild.appendChild( label );
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}
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return label;
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},
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_onInputClick : function () {
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var i,
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input,
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obj,
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inputs = this._form.getElementsByTagName('input'),
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inputsLen = inputs.length;
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this._handlingClick = true;
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for (i = 0; i < inputsLen; i++) {
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input = inputs[i];
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obj = this._layers[input.layerId];
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if ( !obj ) { continue; }
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if (input.checked && !this._map.hasLayer(obj.layer)) {
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this._map.addLayer(obj.layer);
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} else if (!input.checked && this._map.hasLayer(obj.layer)) {
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this._map.removeLayer(obj.layer);
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}
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}
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this._handlingClick = false;
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},
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_onDeleteClick : function(obj){
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var node = obj.target.parentElement.childNodes[0];
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n_obj = this._layers[node.layerId];
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// verify if obj is a basemap and checked to not remove
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if( !n_obj.overlay && node.checked ){
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return false;
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}
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if( this._map.hasLayer(n_obj.layer) ){
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this._map.removeLayer(n_obj.layer);
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}
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obj.target.parentNode.remove();
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return false;
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},
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_expand : function () {
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L.DomUtil.addClass(this._container, 'leaflet-control-layers-expanded');
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},
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_collapse : function () {
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this._container.className = this._container.className.replace(' leaflet-control-layers-expanded', '');
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}
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});
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L.Control.styledLayerControl = function (baseLayers, overlays, options) {
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return new L.Control.StyledLayerControl(baseLayers, overlays, options);
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};
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