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| 1 <!DOCTYPE html> |
| 2 <html> |
| 3 <head> |
| 4 <title>Canvas Hit Regions: clip test</title> |
| 5 <script src="../../resources/js-test.js"></script> |
| 6 </head> |
| 7 <body> |
| 8 <canvas id="canvas" width="400" height="400"></canvas> |
| 9 <script> |
| 10 |
| 11 var canvas = document.getElementById("canvas"); |
| 12 var context = canvas.getContext("2d"); |
| 13 |
| 14 function clickCanvas(x, y) |
| 15 { |
| 16 if (!window.eventSender) |
| 17 return "This test requires eventSender"; |
| 18 |
| 19 var result = null; |
| 20 function listener(event) |
| 21 { |
| 22 result = event.region; |
| 23 } |
| 24 |
| 25 var rect = canvas.getBoundingClientRect(); |
| 26 canvas.addEventListener("click", listener, false); |
| 27 eventSender.mouseMoveTo(rect.left + x, rect.top + y); |
| 28 eventSender.mouseDown(); |
| 29 eventSender.mouseUp(); |
| 30 canvas.removeEventListener("click", listener, false); |
| 31 |
| 32 return result; |
| 33 } |
| 34 |
| 35 debug("Simple rect clip tests."); |
| 36 context.save(); |
| 37 context.beginPath(); |
| 38 context.rect(0, 0, 100, 100); |
| 39 context.clip(); |
| 40 context.beginPath(); |
| 41 context.rect(50, 50, 100, 100); |
| 42 context.addHitRegion({ id : "clip" }); |
| 43 context.restore(); |
| 44 shouldBe("clickCanvas(10, 10)", "null"); |
| 45 shouldBe("clickCanvas(60, 60)", "'clip'"); |
| 46 debug(""); |
| 47 |
| 48 debug("Non rect clip tests."); |
| 49 context.save(); |
| 50 context.beginPath(); |
| 51 context.arc(50, 50, 50, 0, Math.PI * 2); |
| 52 context.clip(); |
| 53 context.beginPath(); |
| 54 context.rect(0, 0, 100, 100); |
| 55 context.addHitRegion({ id : "clip" }); |
| 56 context.restore(); |
| 57 shouldBe("clickCanvas(0, 0)", "null"); |
| 58 shouldBe("clickCanvas(100, 0)", "null"); |
| 59 shouldBe("clickCanvas(100, 100)", "null"); |
| 60 shouldBe("clickCanvas(0, 100)", "null"); |
| 61 shouldBe("clickCanvas(50, 50)", "'clip'"); |
| 62 debug(""); |
| 63 |
| 64 debug("Multiple clip tests."); |
| 65 context.save(); |
| 66 context.beginPath(); |
| 67 context.rect(0, 0, 100, 100); |
| 68 context.clip(); |
| 69 context.beginPath(); |
| 70 context.arc(100, 50, 50, 0, Math.PI * 2); |
| 71 context.clip(); |
| 72 context.beginPath(); |
| 73 context.rect(0, 0, 150, 50); |
| 74 context.addHitRegion({ id : "clip" }); |
| 75 context.restore(); |
| 76 shouldBe("clickCanvas(0, 0)", "null"); |
| 77 shouldBe("clickCanvas(100, 0)", "'clip'"); |
| 78 shouldBe("clickCanvas(100, 100)", "null"); |
| 79 shouldBe("clickCanvas(0, 100)", "null"); |
| 80 shouldBe("clickCanvas(50, 0)", "null"); |
| 81 shouldBe("clickCanvas(150, 0)", "null"); |
| 82 shouldBe("clickCanvas(150, 100)", "null"); |
| 83 shouldBe("clickCanvas(50, 100)", "null"); |
| 84 shouldBe("clickCanvas(50, 50)", "'clip'"); |
| 85 shouldBe("clickCanvas(100, 50)", "'clip'"); |
| 86 debug(""); |
| 87 |
| 88 debug("No pixels tests."); |
| 89 context.save(); |
| 90 context.beginPath(); |
| 91 context.rect(0, 0, 100, 100); |
| 92 context.clip(); |
| 93 context.beginPath(); |
| 94 context.rect(100, 100, 100, 100); |
| 95 shouldThrow("context.addHitRegion({ id : 'clip' })"); |
| 96 context.restore(); |
| 97 context.save(); |
| 98 context.beginPath(); |
| 99 context.rect(0, 0, 50, 50); |
| 100 context.rect(100, 0, 50, 50); |
| 101 context.clip(); |
| 102 context.beginPath(); |
| 103 context.arc(75, 75, 30, 0, Math.PI * 2); |
| 104 shouldThrow("context.addHitRegion({ id : 'clip' })"); |
| 105 context.restore(); |
| 106 debug(""); |
| 107 |
| 108 </script> |
| 109 </body> |
| 110 </html> |
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