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| 1 /* | |
| 2 * Copyright (C) 2013 Google Inc. All rights reserved. | |
| 3 * | |
| 4 * Redistribution and use in source and binary forms, with or without | |
| 5 * modification, are permitted provided that the following conditions are | |
| 6 * met: | |
| 7 * | |
| 8 * * Redistributions of source code must retain the above copyright | |
| 9 * notice, this list of conditions and the following disclaimer. | |
| 10 * * Redistributions in binary form must reproduce the above | |
| 11 * copyright notice, this list of conditions and the following disclaimer | |
| 12 * in the documentation and/or other materials provided with the | |
| 13 * distribution. | |
| 14 * * Neither the name of Google Inc. nor the names of its | |
| 15 * contributors may be used to endorse or promote products derived from | |
| 16 * this software without specific prior written permission. | |
| 17 * | |
| 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 29 */ | |
| 30 | |
| 31 /** | |
| 32 * @unrestricted | |
| 33 */ | |
| 34 UI.PieChart = class { | |
| 35 /** | |
| 36 * @param {number} size | |
| 37 * @param {function(number):string=} formatter | |
| 38 * @param {boolean=} showTotal | |
| 39 */ | |
| 40 constructor(size, formatter, showTotal) { | |
| 41 this.element = createElement('div'); | |
| 42 this._shadowRoot = UI.createShadowRootWithCoreStyles(this.element, 'ui_lazy/
pieChart.css'); | |
| 43 var root = this._shadowRoot.createChild('div', 'root'); | |
| 44 var svg = this._createSVGChild(root, 'svg'); | |
| 45 this._group = this._createSVGChild(svg, 'g'); | |
| 46 var background = this._createSVGChild(this._group, 'circle'); | |
| 47 background.setAttribute('r', 1.01); | |
| 48 background.setAttribute('fill', 'hsl(0, 0%, 90%)'); | |
| 49 this._foregroundElement = root.createChild('div', 'pie-chart-foreground'); | |
| 50 if (showTotal) | |
| 51 this._totalElement = this._foregroundElement.createChild('div', 'pie-chart
-total'); | |
| 52 this._formatter = formatter; | |
| 53 this._slices = []; | |
| 54 this._lastAngle = -Math.PI / 2; | |
| 55 this._setSize(size); | |
| 56 } | |
| 57 | |
| 58 /** | |
| 59 * @param {number} totalValue | |
| 60 */ | |
| 61 setTotal(totalValue) { | |
| 62 for (var i = 0; i < this._slices.length; ++i) | |
| 63 this._slices[i].remove(); | |
| 64 this._slices = []; | |
| 65 this._totalValue = totalValue; | |
| 66 var totalString; | |
| 67 if (totalValue) | |
| 68 totalString = this._formatter ? this._formatter(totalValue) : totalValue; | |
| 69 else | |
| 70 totalString = ''; | |
| 71 if (this._totalElement) | |
| 72 this._totalElement.textContent = totalString; | |
| 73 } | |
| 74 | |
| 75 /** | |
| 76 * @param {number} value | |
| 77 */ | |
| 78 _setSize(value) { | |
| 79 this._group.setAttribute('transform', 'scale(' + (value / 2) + ') translate(
1, 1) scale(0.99, 0.99)'); | |
| 80 var size = value + 'px'; | |
| 81 this.element.style.width = size; | |
| 82 this.element.style.height = size; | |
| 83 } | |
| 84 | |
| 85 /** | |
| 86 * @param {number} value | |
| 87 * @param {string} color | |
| 88 */ | |
| 89 addSlice(value, color) { | |
| 90 var sliceAngle = value / this._totalValue * 2 * Math.PI; | |
| 91 if (!isFinite(sliceAngle)) | |
| 92 return; | |
| 93 sliceAngle = Math.min(sliceAngle, 2 * Math.PI * 0.9999); | |
| 94 var path = this._createSVGChild(this._group, 'path'); | |
| 95 var x1 = Math.cos(this._lastAngle); | |
| 96 var y1 = Math.sin(this._lastAngle); | |
| 97 this._lastAngle += sliceAngle; | |
| 98 var x2 = Math.cos(this._lastAngle); | |
| 99 var y2 = Math.sin(this._lastAngle); | |
| 100 var largeArc = sliceAngle > Math.PI ? 1 : 0; | |
| 101 path.setAttribute('d', 'M0,0 L' + x1 + ',' + y1 + ' A1,1,0,' + largeArc + ',
1,' + x2 + ',' + y2 + ' Z'); | |
| 102 path.setAttribute('fill', color); | |
| 103 this._slices.push(path); | |
| 104 } | |
| 105 | |
| 106 /** | |
| 107 * @param {!Element} parent | |
| 108 * @param {string} childType | |
| 109 * @return {!Element} | |
| 110 */ | |
| 111 _createSVGChild(parent, childType) { | |
| 112 var child = parent.ownerDocument.createElementNS('http://www.w3.org/2000/svg
', childType); | |
| 113 parent.appendChild(child); | |
| 114 return child; | |
| 115 } | |
| 116 }; | |
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Chromium Code Reviews
Issue 2623743002:
DevTools: extract modules (non-extensions) (Closed)
