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1 <!DOCTYPE html> | 1 <!DOCTYPE html> |
2 <style> | 2 <style> |
3 canvas { | 3 canvas { |
4 position: absolute; | 4 position: absolute; |
5 width: 600px; | 5 width: 500px; |
6 height: 500px; | 6 height: 500px; |
7 top: 50px; | 7 top: 50px; |
8 left: 50px; | 8 left: 50px; |
9 /* object-fit and object-position make the content of the canvas not affected | 9 /* object-fit and object-position make the content of the canvas not affected |
10 by the resize in repaintTest(). */ | 10 by the resize in repaintTest(). */ |
11 object-fit: contain; | 11 object-fit: contain; |
12 object-position: 0 0; | 12 object-position: 0 0; |
13 background-color: #030; | 13 background-color: #030; |
14 } | 14 } |
15 </style> | 15 </style> |
16 Tests paint invalidation of canvas when it's resized which doesn't affect its co
ntents. Passes if there is only incremental invalidation for the resized backgro
und. | 16 Tests paint invalidation of canvas when it's resized which doesn't affect its co
ntents. Passes if there is only incremental invalidation for the resized backgro
und. |
17 <canvas id="canvas" width="500" height="500"></canvas> | 17 <canvas id="canvas" width="500" height="500"></canvas> |
18 | 18 |
19 <script src="resources/text-based-repaint.js"></script> | |
20 <script> | 19 <script> |
21 function repaintTest() { | |
22 document.getElementById('canvas').style.width = '500px'; | |
23 } | |
24 onload = runRepaintTest; | |
25 | |
26 var ctx = document.getElementById('canvas').getContext('2d'); | 20 var ctx = document.getElementById('canvas').getContext('2d'); |
27 ctx.beginPath(); | 21 ctx.beginPath(); |
28 ctx.arc(250, 250, 250, 0, 2 * Math.PI); | 22 ctx.arc(250, 250, 250, 0, 2 * Math.PI); |
29 ctx.fillStyle = 'green'; | 23 ctx.fillStyle = 'green'; |
30 ctx.fill(); | 24 ctx.fill(); |
31 </script> | 25 </script> |
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