leaflet
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JavaScript library for mobile-friendly interactive maps
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<title>Code coverage report for src/control/Control.Layers.js</title>
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<div class='header medium'>
<h1>Code coverage report for <span class='entity'>src/control/Control.Layers.js</span></h1>
<h2>
Statements: <span class='metric'>79.09% <small>(87 / 110)</small></span>
Branches: <span class='metric'>77.08% <small>(37 / 48)</small></span>
Functions: <span class='metric'>62.5% <small>(10 / 16)</small></span>
Lines: <span class='metric'>79.09% <small>(87 / 110)</small></span>
</h2>
<div class="path"><a href="../../index.html">All files</a> » <a href="index.html">src/control/</a> » Control.Layers.js</div>
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<span class="cline-any cline-neutral"> </span></td><td class="text"><pre class="prettyprint lang-js">/*
* L.Control.Layers is a control to allow users to switch between different layers on the map.
*/
L.Control.Layers = L.Control.extend({
options: {
collapsed: true,
position: 'topright',
autoZIndex: true
},
initialize: function (baseLayers, overlays, options) {
L.setOptions(this, options);
this._layers = {};
this._lastZIndex = 0;
this._handlingClick = false;
for (var i in baseLayers) {
<span class="missing-if-branch" title="else path not taken"" >E</span>if (baseLayers.hasOwnProperty(i)) {
this._addLayer(baseLayers[i], i);
}
}
for (i in overlays) {
<span class="missing-if-branch" title="else path not taken"" >E</span>if (overlays.hasOwnProperty(i)) {
this._addLayer(overlays[i], i, true);
}
}
},
onAdd: function (map) {
this._initLayout();
this._update();
map
.on('layeradd', this._onLayerChange, this)
.on('layerremove', this._onLayerChange, this);
return this._container;
},
onRemove: <span class="fstat-no" title="function not covered" >function (map) {</span>
<span class="cstat-no" title="statement not covered" > map</span>
.off('layeradd', this._onLayerChange)
.off('layerremove', this._onLayerChange);
},
addBaseLayer: <span class="fstat-no" title="function not covered" >function (layer, name) {</span>
<span class="cstat-no" title="statement not covered" > this._addLayer(layer, name);</span>
<span class="cstat-no" title="statement not covered" > this._update();</span>
<span class="cstat-no" title="statement not covered" > return this;</span>
},
addOverlay: <span class="fstat-no" title="function not covered" >function (layer, name) {</span>
<span class="cstat-no" title="statement not covered" > this._addLayer(layer, name, true);</span>
<span class="cstat-no" title="statement not covered" > this._update();</span>
<span class="cstat-no" title="statement not covered" > return this;</span>
},
removeLayer: <span class="fstat-no" title="function not covered" >function (layer) {</span>
<span class="cstat-no" title="statement not covered" > var id = L.stamp(layer);</span>
<span class="cstat-no" title="statement not covered" > delete this._layers[id];</span>
<span class="cstat-no" title="statement not covered" > this._update();</span>
<span class="cstat-no" title="statement not covered" > return this;</span>
},
_initLayout: function () {
var className = 'leaflet-control-layers',
container = this._container = L.DomUtil.create('div', className);
<span class="missing-if-branch" title="else path not taken"" >E</span>if (!L.Browser.touch) {
L.DomEvent.disableClickPropagation(container);
L.DomEvent.on(container, 'mousewheel', L.DomEvent.stopPropagation);
} else {
<span class="cstat-no" title="statement not covered" > L.DomEvent.on(container, 'click', L.DomEvent.stopPropagation);</span>
}
var form = this._form = L.DomUtil.create('form', className + '-list');
<span class="missing-if-branch" title="else path not taken"" >E</span>if (this.options.collapsed) {
L.DomEvent
.on(container, 'mouseover', this._expand, this)
.on(container, 'mouseout', this._collapse, this);
var link = this._layersLink = L.DomUtil.create('a', className + '-toggle', container);
link.href = '#';
link.title = 'Layers';
<span class="missing-if-branch" title="if path not taken"" >I</span>if (L.Browser.touch) {
<span class="cstat-no" title="statement not covered" > L.DomEvent</span>
.on(link, 'click', L.DomEvent.stopPropagation)
.on(link, 'click', L.DomEvent.preventDefault)
.on(link, 'click', this._expand, this);
}
else {
L.DomEvent.on(link, 'focus', this._expand, this);
}
this._map.on('movestart', this._collapse, this);
// TODO keyboard accessibility
} else {
<span class="cstat-no" title="statement not covered" > this._expand();</span>
}
this._baseLayersList = L.DomUtil.create('div', className + '-base', form);
this._separator = L.DomUtil.create('div', className + '-separator', form);
this._overlaysList = L.DomUtil.create('div', className + '-overlays', form);
container.appendChild(form);
},
_addLayer: function (layer, name, overlay) {
var id = L.stamp(layer);
this._layers[id] = {
layer: layer,
name: name,
overlay: overlay
};
if (this.options.autoZIndex && layer.setZIndex) {
this._lastZIndex++;
layer.setZIndex(this._lastZIndex);
}
},
_update: function () {
<span class="missing-if-branch" title="if path not taken"" >I</span>if (!this._container) {
<span class="cstat-no" title="statement not covered" > return;</span>
}
this._baseLayersList.innerHTML = '';
this._overlaysList.innerHTML = '';
var baseLayersPresent = false,
overlaysPresent = false;
for (var i in this._layers) {
<span class="missing-if-branch" title="else path not taken"" >E</span>if (this._layers.hasOwnProperty(i)) {
var obj = this._layers[i];
this._addItem(obj);
overlaysPresent = overlaysPresent || obj.overlay;
baseLayersPresent = baseLayersPresent || !obj.overlay;
}
}
this._separator.style.display = (overlaysPresent && baseLayersPresent ? '' : 'none');
},
_onLayerChange: function (e) {
var id = L.stamp(e.layer);
if (this._layers[id] && !this._handlingClick) {
this._update();
}
},
// IE7 bugs out if you create a radio dynamically, so you have to do it this hacky way (see http://bit.ly/PqYLBe)
_createRadioElement: function (name, checked) {
var radioHtml = '<input type="radio" class="leaflet-control-layers-selector" name="' + name + '"';
<span class="missing-if-branch" title="if path not taken"" >I</span>if (checked) {
<span class="cstat-no" title="statement not covered" > radioHtml += ' checked="checked"';</span>
}
radioHtml += '/>';
var radioFragment = document.createElement('div');
radioFragment.innerHTML = radioHtml;
return radioFragment.firstChild;
},
_addItem: function (obj) {
var label = document.createElement('label'),
input,
checked = this._map.hasLayer(obj.layer);
if (obj.overlay) {
input = document.createElement('input');
input.type = 'checkbox';
input.className = 'leaflet-control-layers-selector';
input.defaultChecked = checked;
} else {
input = this._createRadioElement('leaflet-base-layers', checked);
}
input.layerId = L.stamp(obj.layer);
L.DomEvent.on(input, 'click', this._onInputClick, this);
var name = document.createElement('span');
name.innerHTML = ' ' + obj.name;
label.appendChild(input);
label.appendChild(name);
var container = obj.overlay ? this._overlaysList : this._baseLayersList;
container.appendChild(label);
return label;
},
_onInputClick: function () {
var i, input, obj,
inputs = this._form.getElementsByTagName('input'),
inputsLen = inputs.length,
baseLayer;
this._handlingClick = true;
for (i = 0; i < inputsLen; i++) {
input = inputs[i];
obj = this._layers[input.layerId];
if (input.checked && !this._map.hasLayer(obj.layer)) {
this._map.addLayer(obj.layer);
<span class="missing-if-branch" title="if path not taken"" >I</span>if (!obj.overlay) {
<span class="cstat-no" title="statement not covered" > baseLayer = obj.layer;</span>
} else {
this._map.fire('overlayadd', {layer: obj});
}
} else <span class="missing-if-branch" title="if path not taken"" >I</span>if (!input.checked && this._map.hasLayer(obj.layer)) {
<span class="cstat-no" title="statement not covered" > this._map.removeLayer(obj.layer);</span>
<span class="cstat-no" title="statement not covered" > this._map.fire('overlayremove', {layer: obj});</span>
}
}
<span class="missing-if-branch" title="if path not taken"" >I</span>if (baseLayer) {
<span class="cstat-no" title="statement not covered" > this._map.setZoom(this._map.getZoom());</span>
<span class="cstat-no" title="statement not covered" > this._map.fire('baselayerchange', {layer: baseLayer});</span>
}
this._handlingClick = false;
},
_expand: <span class="fstat-no" title="function not covered" >function () {</span>
<span class="cstat-no" title="statement not covered" > L.DomUtil.addClass(this._container, 'leaflet-control-layers-expanded');</span>
},
_collapse: <span class="fstat-no" title="function not covered" >function () {</span>
<span class="cstat-no" title="statement not covered" > this._container.className = this._container.className.replace(' leaflet-control-layers-expanded', '');</span>
}
});
L.control.layers = function (baseLayers, overlays, options) {
return new L.Control.Layers(baseLayers, overlays, options);
};
</pre></td></tr>
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