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| (Empty) |
| 1 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" | |
| 2 "http://www.w3.org/TR/html4/loose.dtd"> | |
| 3 | |
| 4 <html lang="en"> | |
| 5 <head> | |
| 6 <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> | |
| 7 <title>Canvas Mask</title> | |
| 8 <style type="text/css" media="screen"> | |
| 9 #canvas1 { | |
| 10 height: 300px; | |
| 11 width: 400px; | |
| 12 border: 1px solid black; | |
| 13 } | |
| 14 | |
| 15 .masked { | |
| 16 /* transform: rotate(10deg);*/ | |
| 17 -webkit-mask: -webkit-canvas(canvas1); | |
| 18 } | |
| 19 </style> | |
| 20 <script type="text/javascript" charset="utf-8"> | |
| 21 | |
| 22 var gPageWidth = 320; | |
| 23 var gPageHeight = 200; | |
| 24 | |
| 25 function drawPageShadow(shadowWidth) | |
| 26 { | |
| 27 var ctx = document.getCSSCanvasContext('2d', 'canvas1', gPageWidth, gPag
eHeight); | |
| 28 ctx.clearRect (0, 0, gPageWidth, gPageHeight); | |
| 29 | |
| 30 var gradient = ctx.createLinearGradient(0, 0, shadowWidth, 0); | |
| 31 gradient.addColorStop(0, 'rgba(0,0,0,1)'); | |
| 32 gradient.addColorStop(1, 'rgba(0,0,0,0)'); | |
| 33 ctx.fillStyle = gradient; | |
| 34 ctx.fillRect (0, 0, shadowWidth, gPageHeight); | |
| 35 } | |
| 36 | |
| 37 function redrawCanvas(event) | |
| 38 { | |
| 39 drawPageShadow(event.pageX); | |
| 40 } | |
| 41 | |
| 42 function onPageLoad() | |
| 43 { | |
| 44 drawPageShadow(640); | |
| 45 } | |
| 46 | |
| 47 window.addEventListener('load', onPageLoad, false); | |
| 48 | |
| 49 </script> | |
| 50 </head> | |
| 51 <body> | |
| 52 | |
| 53 <p>Hovering over the image or text should cause the element to be redrawn with
a new mask</p> | |
| 54 <a href="https://bugs.webkit.org/show_bug.cgi?id=19954">https://bugs.webkit.or
g/show_bug.cgi?id=19954</a> | |
| 55 <h2>Image with mask</h2> | |
| 56 <img src="http://www.google.com/intl/en_ALL/images/logo.gif" width="320" heig
ht="200" alt="Clown Fish" class="masked" | |
| 57 onmousemove="redrawCanvas(event)"> | |
| 58 | |
| 59 <h2>Div with mask</h2> | |
| 60 <div class="masked" style="width: 640px" onmousemove="redrawCanvas(event)"> | |
| 61 Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod te
mpor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis
nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Du
is aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fu
giat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in cul
pa qui officia deserunt mollit anim id est laborum. | |
| 62 </div> | |
| 63 | |
| 64 </body> | |
| 65 </html> | |
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Chromium Code Reviews
Issue 1416793004:
Remove support for -webkit-canvas and Document.getCSSCanvasContext. (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master