leaflet
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JavaScript library for mobile-friendly interactive maps
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<title>Code coverage report for src/dom/DomEvent.js</title>
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<div class='header low'>
<h1>Code coverage report for <span class='entity'>src/dom/DomEvent.js</span></h1>
<h2>
Statements: <span class='metric'>45.83% <small>(44 / 96)</small></span>
Branches: <span class='metric'>41.38% <small>(36 / 87)</small></span>
Functions: <span class='metric'>42.86% <small>(6 / 14)</small></span>
Lines: <span class='metric'>46.74% <small>(43 / 92)</small></span>
</h2>
<div class="path"><a href="../../index.html">All files</a> » <a href="index.html">src/dom/</a> » DomEvent.js</div>
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<span class="cline-any cline-neutral"> </span></td><td class="text"><pre class="prettyprint lang-js">/*
* L.DomEvent contains functions for working with DOM events.
*/
L.DomEvent = {
/* inspired by John Resig, Dean Edwards and YUI addEvent implementations */
addListener: function (obj, type, fn, context) { // (HTMLElement, String, Function[, Object])
var id = L.stamp(fn),
key = '_leaflet_' + type + id,
handler, originalHandler, newType;
if (obj[key]) { return this; }
handler = function (e) {
return fn.call(context || obj, e || <span class="branch-1 cbranch-no" title="branch not covered" >L.DomEvent._getEvent())</span>;
};
<span class="missing-if-branch" title="if path not taken"" >I</span>if (L.Browser.msTouch && <span class="branch-1 cbranch-no" title="branch not covered" >type.indexOf('touch') === 0)</span> {
<span class="cstat-no" title="statement not covered" > return this.addMsTouchListener(obj, type, handler, id);</span>
}
<span class="missing-if-branch" title="if path not taken"" >I</span>if (L.Browser.touch && <span class="branch-1 cbranch-no" title="branch not covered" >(type === 'dblclick') </span>&& <span class="branch-2 cbranch-no" title="branch not covered" >this.addDoubleTapListener)</span> {
<span class="cstat-no" title="statement not covered" > this.addDoubleTapListener(obj, handler, id);</span>
}
<span class="missing-if-branch" title="else path not taken"" >E</span>if ('addEventListener' in obj) {
if (type === 'mousewheel') {
obj.addEventListener('DOMMouseScroll', handler, false);
obj.addEventListener(type, handler, false);
} else if ((type === 'mouseenter') || (type === 'mouseleave')) {
originalHandler = handler;
newType = (type === 'mouseenter' ? 'mouseover' : 'mouseout');
handler = <span class="fstat-no" title="function not covered" >function (e) {</span>
<span class="cstat-no" title="statement not covered" > if (!L.DomEvent._checkMouse(obj, e)) { <span class="cstat-no" title="statement not covered" >return; </span>}</span>
<span class="cstat-no" title="statement not covered" > return originalHandler(e);</span>
};
obj.addEventListener(newType, handler, false);
} else <span class="missing-if-branch" title="if path not taken"" >I</span>if (type === 'click' && L.Browser.android) {
<span class="cstat-no" title="statement not covered" > originalHandler = handler;</span>
<span class="cstat-no" title="statement not covered" > handler = <span class="fstat-no" title="function not covered" >function (e) {</span></span>
<span class="cstat-no" title="statement not covered" > return L.DomEvent._filterClick(e, originalHandler);</span>
};
<span class="cstat-no" title="statement not covered" > obj.addEventListener(type, handler, false);</span>
} else {
obj.addEventListener(type, handler, false);
}
} else <span class="cstat-no" title="statement not covered" >if ('attachEvent' in obj) {</span>
<span class="cstat-no" title="statement not covered" > obj.attachEvent("on" + type, handler);</span>
}
obj[key] = handler;
return this;
},
removeListener: function (obj, type, fn) { // (HTMLElement, String, Function)
var id = L.stamp(fn),
key = '_leaflet_' + type + id,
handler = obj[key];
<span class="missing-if-branch" title="if path not taken"" >I</span>if (!handler) { <span class="cstat-no" title="statement not covered" >return this; </span>}
<span class="missing-if-branch" title="if path not taken"" >I</span>if (L.Browser.msTouch && <span class="branch-1 cbranch-no" title="branch not covered" >type.indexOf('touch') === 0)</span> {
<span class="cstat-no" title="statement not covered" > this.removeMsTouchListener(obj, type, id);</span>
} else <span class="missing-if-branch" title="if path not taken"" >I</span>if (L.Browser.touch && <span class="branch-1 cbranch-no" title="branch not covered" >(type === 'dblclick') </span>&& <span class="branch-2 cbranch-no" title="branch not covered" >this.removeDoubleTapListener)</span> {
<span class="cstat-no" title="statement not covered" > this.removeDoubleTapListener(obj, id);</span>
} else <span class="missing-if-branch" title="else path not taken"" >E</span>if ('removeEventListener' in obj) {
<span class="missing-if-branch" title="if path not taken"" >I</span>if (type === 'mousewheel') {
<span class="cstat-no" title="statement not covered" > obj.removeEventListener('DOMMouseScroll', handler, false);</span>
<span class="cstat-no" title="statement not covered" > obj.removeEventListener(type, handler, false);</span>
} else if ((type === 'mouseenter') || (type === 'mouseleave')) {
obj.removeEventListener((type === 'mouseenter' ? 'mouseover' : 'mouseout'), handler, false);
} else {
obj.removeEventListener(type, handler, false);
}
} else <span class="cstat-no" title="statement not covered" >if ('detachEvent' in obj) {</span>
<span class="cstat-no" title="statement not covered" > obj.detachEvent("on" + type, handler);</span>
}
obj[key] = null;
return this;
},
stopPropagation: function (e) {
<span class="missing-if-branch" title="else path not taken"" >E</span>if (e.stopPropagation) {
e.stopPropagation();
} else {
<span class="cstat-no" title="statement not covered" > e.cancelBubble = true;</span>
}
return this;
},
disableClickPropagation: function (el) {
var stop = L.DomEvent.stopPropagation;
for (var i = L.Draggable.START.length - 1; i >= 0; i--) {
L.DomEvent.addListener(el, L.Draggable.START[i], stop);
}
return L.DomEvent
.addListener(el, 'click', stop)
.addListener(el, 'dblclick', stop);
},
preventDefault: function (e) {
<span class="missing-if-branch" title="else path not taken"" >E</span>if (e.preventDefault) {
e.preventDefault();
} else {
<span class="cstat-no" title="statement not covered" > e.returnValue = false;</span>
}
return this;
},
stop: <span class="fstat-no" title="function not covered" >function (e) {</span>
<span class="cstat-no" title="statement not covered" > return L.DomEvent.preventDefault(e).stopPropagation(e);</span>
},
getMousePosition: <span class="fstat-no" title="function not covered" >function (e, container) {</span>
<span class="cstat-no" title="statement not covered" > var body = document.body,</span>
docEl = document.documentElement,
x = e.pageX ? e.pageX : e.clientX + body.scrollLeft + docEl.scrollLeft,
y = e.pageY ? e.pageY : e.clientY + body.scrollTop + docEl.scrollTop,
pos = new L.Point(x, y);
<span class="cstat-no" title="statement not covered" > return (container ? pos._subtract(L.DomUtil.getViewportOffset(container)) : pos);</span>
},
getWheelDelta: <span class="fstat-no" title="function not covered" >function (e) {</span>
<span class="cstat-no" title="statement not covered" > var delta = 0;</span>
<span class="cstat-no" title="statement not covered" > if (e.wheelDelta) {</span>
<span class="cstat-no" title="statement not covered" > delta = e.wheelDelta / 120;</span>
}
<span class="cstat-no" title="statement not covered" > if (e.detail) {</span>
<span class="cstat-no" title="statement not covered" > delta = -e.detail / 3;</span>
}
<span class="cstat-no" title="statement not covered" > return delta;</span>
},
// check if element really left/entered the event target (for mouseenter/mouseleave)
_checkMouse: <span class="fstat-no" title="function not covered" >function (el, e) {</span>
<span class="cstat-no" title="statement not covered" > var related = e.relatedTarget;</span>
<span class="cstat-no" title="statement not covered" > if (!related) { <span class="cstat-no" title="statement not covered" >return true; </span>}</span>
<span class="cstat-no" title="statement not covered" > try {</span>
<span class="cstat-no" title="statement not covered" > while (related && (related !== el)) {</span>
<span class="cstat-no" title="statement not covered" > related = related.parentNode;</span>
}
} catch (err) {
<span class="cstat-no" title="statement not covered" > return false;</span>
}
<span class="cstat-no" title="statement not covered" > return (related !== el);</span>
},
_getEvent: <span class="fstat-no" title="function not covered" >function () {</span> // evil magic for IE
/*jshint noarg:false */
<span class="cstat-no" title="statement not covered" > var e = window.event;</span>
<span class="cstat-no" title="statement not covered" > if (!e) {</span>
<span class="cstat-no" title="statement not covered" > var caller = arguments.callee.caller;</span>
<span class="cstat-no" title="statement not covered" > while (caller) {</span>
<span class="cstat-no" title="statement not covered" > e = caller['arguments'][0];</span>
<span class="cstat-no" title="statement not covered" > if (e && window.Event === e.constructor) {</span>
<span class="cstat-no" title="statement not covered" > break;</span>
}
<span class="cstat-no" title="statement not covered" > caller = caller.caller;</span>
}
}
<span class="cstat-no" title="statement not covered" > return e;</span>
},
// this solves a bug in Android WebView where a single touch triggers two click events.
_filterClick: <span class="fstat-no" title="function not covered" >function (e, handler) {</span>
<span class="cstat-no" title="statement not covered" > var elapsed = L.DomEvent._lastClick && (e.timeStamp - L.DomEvent._lastClick);</span>
// are they closer together than 400ms yet more than 100ms?
// Android typically triggers them ~300ms apart while multiple listeners
// on the same event should be triggered far faster.
<span class="cstat-no" title="statement not covered" > if (elapsed && elapsed > 100 && elapsed < 400) {</span>
<span class="cstat-no" title="statement not covered" > L.DomEvent.stop(e);</span>
<span class="cstat-no" title="statement not covered" > return;</span>
}
<span class="cstat-no" title="statement not covered" > L.DomEvent._lastClick = e.timeStamp;</span>
<span class="cstat-no" title="statement not covered" > return handler(e);</span>
}
};
L.DomEvent.on = L.DomEvent.addListener;
L.DomEvent.off = L.DomEvent.removeListener;
</pre></td></tr>
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