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JavaScript library for mobile-friendly interactive maps

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<!doctype html> <html> <head> <title>Code coverage report for src/map/handler/Map.Drag.js</title> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta http-equiv="content-language" content="en-gb"> <link rel='stylesheet' href='../../../prettify.css'> <style type='text/css'> body, html { margin:0; padding: 0; } body { font-family: "Helvetic Neue", Helvetica,Arial; font-size: 10pt; } div.header, div.footer { background: #eee; padding: 1em; } div.header { z-index: 100; position: fixed; top: 0; border-bottom: 1px solid #666; width: 100%; } div.footer { border-top: 1px solid #666; } div.body { margin-top: 10em; } div.meta { font-size: 90%; text-align: center; } h1, h2, h3 { font-weight: normal; } h1 { font-size: 12pt; } h2 { font-size: 10pt; } pre { font-family: consolas, menlo, monaco, monospace; margin: 0; padding: 0; line-height: 14px; font-size: 14px; } div.path { font-size: 110%; } div.path a:link, div.path a:visited { color: #000; } table.coverage { 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&nbsp;&nbsp;&nbsp;&nbsp; Functions: <span class='metric'>10% <small>(1 / 10)</small></span> &nbsp;&nbsp;&nbsp;&nbsp; Lines: <span class='metric'>20% <small>(9 / 45)</small></span> &nbsp;&nbsp;&nbsp;&nbsp; </h2> <div class="path"><a href="../../../index.html">All files</a> &#187; <a href="index.html">src/map/handler/</a> &#187; Map.Drag.js</div> </div> <div class='body'> <pre><table class="coverage"> <tr><td class="line-count">1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156</td><td class="line-coverage"><span class="cline-any 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panning inertia), enabled by default. */ &nbsp; L.Map.mergeOptions({ dragging: true, &nbsp; inertia: !L.Browser.android23, inertiaDeceleration: 3400, // px/s^2 inertiaMaxSpeed: Infinity, // px/s inertiaThreshold: L.Browser.touch ? <span class="branch-0 cbranch-no" title="branch not covered" >32 </span>: 18, // ms easeLinearity: 0.25, &nbsp; longPress: true, &nbsp; // TODO refactor, move to CRS worldCopyJump: false }); &nbsp; L.Map.Drag = L.Handler.extend({ addHooks: function () { <span class="missing-if-branch" title="else path not taken"" >E</span>if (!this._draggable) { var map = this._map; &nbsp; this._draggable = new L.Draggable(map._mapPane, map._container, map.options.longPress); &nbsp; this._draggable.on({ 'dragstart': this._onDragStart, 'drag': this._onDrag, 'dragend': this._onDragEnd }, this); &nbsp; <span class="missing-if-branch" title="if path not taken"" >I</span>if (map.options.worldCopyJump) { <span class="cstat-no" title="statement not covered" > this._draggable.on('predrag', this._onPreDrag, this);</span> <span class="cstat-no" title="statement not covered" > map.on('viewreset', this._onViewReset, this);</span> } } this._draggable.enable(); }, &nbsp; removeHooks: <span class="fstat-no" title="function not covered" >function () {</span> <span class="cstat-no" title="statement not covered" > this._draggable.disable();</span> }, &nbsp; moved: <span class="fstat-no" title="function not covered" >function () {</span> <span class="cstat-no" title="statement not covered" > return this._draggable &amp;&amp; this._draggable._moved;</span> }, &nbsp; _onDragStart: <span class="fstat-no" title="function not covered" >function () {</span> <span class="cstat-no" title="statement not covered" > var map = this._map;</span> &nbsp; <span class="cstat-no" title="statement not covered" > if (map._panAnim) {</span> <span class="cstat-no" title="statement not covered" > map._panAnim.stop();</span> } &nbsp; <span class="cstat-no" title="statement not covered" > map</span> .fire('movestart') .fire('dragstart'); &nbsp; <span class="cstat-no" title="statement not covered" > if (map.options.inertia) {</span> <span class="cstat-no" title="statement not covered" > this._positions = [];</span> <span class="cstat-no" title="statement not covered" > this._times = [];</span> } }, &nbsp; _onDrag: <span class="fstat-no" title="function not covered" >function () {</span> <span class="cstat-no" title="statement not covered" > if (this._map.options.inertia) {</span> <span class="cstat-no" title="statement not covered" > var time = this._lastTime = +new Date(),</span> pos = this._lastPos = this._draggable._newPos; &nbsp; <span class="cstat-no" title="statement not covered" > this._positions.push(pos);</span> <span class="cstat-no" title="statement not covered" > this._times.push(time);</span> &nbsp; <span class="cstat-no" title="statement not covered" > if (time - this._times[0] &gt; 200) {</span> <span class="cstat-no" title="statement not covered" > this._positions.shift();</span> <span class="cstat-no" title="statement not covered" > this._times.shift();</span> } } &nbsp; <span class="cstat-no" title="statement not covered" > this._map</span> .fire('move') .fire('drag'); }, &nbsp; _onViewReset: <span class="fstat-no" title="function not covered" >function () {</span> // TODO fix hardcoded Earth values <span class="cstat-no" title="statement not covered" > var pxCenter = this._map.getSize()._divideBy(2),</span> pxWorldCenter = this._map.latLngToLayerPoint(new L.LatLng(0, 0)); &nbsp; <span class="cstat-no" title="statement not covered" > this._initialWorldOffset = pxWorldCenter.subtract(pxCenter).x;</span> <span class="cstat-no" title="statement not covered" > this._worldWidth = this._map.project(new L.LatLng(0, 180)).x;</span> }, &nbsp; _onPreDrag: <span class="fstat-no" title="function not covered" >function () {</span> // TODO refactor to be able to adjust map pane position after zoom <span class="cstat-no" title="statement not covered" > var worldWidth = this._worldWidth,</span> halfWidth = Math.round(worldWidth / 2), dx = this._initialWorldOffset, x = this._draggable._newPos.x, newX1 = (x - halfWidth + dx) % worldWidth + halfWidth - dx, newX2 = (x + halfWidth + dx) % worldWidth - halfWidth - dx, newX = Math.abs(newX1 + dx) &lt; Math.abs(newX2 + dx) ? newX1 : newX2; &nbsp; <span class="cstat-no" title="statement not covered" > this._draggable._newPos.x = newX;</span> }, &nbsp; _onDragEnd: <span class="fstat-no" title="function not covered" >function () {</span> <span class="cstat-no" title="statement not covered" > var map = this._map,</span> options = map.options, delay = +new Date() - this._lastTime, &nbsp; noInertia = !options.inertia || delay &gt; options.inertiaThreshold || !this._positions[0]; &nbsp; <span class="cstat-no" title="statement not covered" > map.fire('dragend');</span> &nbsp; <span class="cstat-no" title="statement not covered" > if (noInertia) {</span> <span class="cstat-no" title="statement not covered" > map.fire('moveend');</span> &nbsp; } else { &nbsp; <span class="cstat-no" title="statement not covered" > var direction = this._lastPos.subtract(this._positions[0]),</span> duration = (this._lastTime + delay - this._times[0]) / 1000, ease = options.easeLinearity, &nbsp; speedVector = direction.multiplyBy(ease / duration), speed = speedVector.distanceTo(new L.Point(0, 0)), &nbsp; limitedSpeed = Math.min(options.inertiaMaxSpeed, speed), limitedSpeedVector = speedVector.multiplyBy(limitedSpeed / speed), &nbsp; decelerationDuration = limitedSpeed / (options.inertiaDeceleration * ease), offset = limitedSpeedVector.multiplyBy(-decelerationDuration / 2).round(); &nbsp; <span class="cstat-no" title="statement not covered" > if (!offset.x || !offset.y) {</span> <span class="cstat-no" title="statement not covered" > map.fire('moveend');</span> &nbsp; } else { <span class="cstat-no" title="statement not covered" > L.Util.requestAnimFrame(<span class="fstat-no" title="function not covered" >function () {</span></span> <span class="cstat-no" title="statement not covered" > map.panBy(offset, decelerationDuration, ease, true);</span> }); } } &nbsp; <span class="cstat-no" title="statement not covered" > if (options.maxBounds) {</span> // TODO predrag validation instead of animation <span class="cstat-no" title="statement not covered" > L.Util.requestAnimFrame(this._panInsideMaxBounds, map, true, map._container);</span> } }, &nbsp; _panInsideMaxBounds: <span class="fstat-no" title="function not covered" >function () {</span> <span class="cstat-no" title="statement not covered" > this.panInsideBounds(this.options.maxBounds);</span> } }); &nbsp; L.Map.addInitHook('addHandler', 'dragging', L.Map.Drag); &nbsp;</pre></td></tr> </table></pre> </div> <div class='footer'> <div class='meta'>Generated by <a href='http://istanbul-js.org' target='_blank'>istanbul</a> at Thu Apr 04 2013 12:16:35 GMT+0300 (EEST)</div> </div> </body> <script 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