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lepu-test-platform-web/node_modules/caniuse-db/features-json/canvas.json

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把之前百度云的代码移植过来
2024-01-03 07:23:47 +00:00
{
"title":"Canvas (basic support)",
"description":"Method of generating fast, dynamic graphics using JavaScript.",
"spec":"https://html.spec.whatwg.org/multipage/scripting.html#the-canvas-element",
"status":"ls",
"links":[
{
"url":"https://developer.mozilla.org/en/Canvas_tutorial",
"title":"Tutorial by Mozilla"
},
{
"url":"http://glimr.rubyforge.org/cake/canvas.html",
"title":"Animation kit"
},
{
"url":"https://diveintohtml5.info/canvas.html",
"title":"Another tutorial"
},
{
"url":"https://github.com/arv/ExplorerCanvas",
"title":"Implementation for Internet Explorer"
},
{
"url":"https://raw.github.com/phiggins42/has.js/master/detect/graphics.js#canvas",
"title":"has.js test"
},
{
"url":"https://skilled.co/html-canvas/",
"title":"Canvas Tutorial & Cheat Sheet"
},
{
"url":"https://developer.mozilla.org/en-US/docs/Web/API/Canvas_API",
"title":"MDN Web Docs - Canvas API"
}
],
"bugs":[
{
"description":"The Android browser does not support clipping on HTML5 canvas. See the bug filed here: https://issuetracker.google.com/issues/36934492"
},
{
"description":"Older versions of iOS did not support video as a source for the canvas `drawImage()`, though it does appear to work as of iOS 8 [test case](https://jsfiddle.net/zL8KC/)"
},
{
"description":"Limits of `toDataURL()` for iOS:\r\n- The maximum size for decoded GIF, PNG, and TIFF images is 3 megapixels for devices with less than 256 MB RAM and 5 megapixels for devices with greater or equal than 256 MB RAM.\r\n- The maximum size for a canvas element is 3 megapixels for devices with less than 256 MB RAM and 5 megapixels for devices with greater or equal than 256 MB RAM.\r\n- JavaScript execution time is limited to 10 seconds for each top-level entry point."
},
{
"description":"In IE 11 `canvas.toDataURL()` does not work if the canvas has images with data URI sources [see bug](https://connect.microsoft.com/IE/Feedback/Details/828416)"
},
{
"description":"IE 10 canvas doesn't support `setLineDash` or `lineDashOffset` [see bug](https://social.msdn.microsoft.com/Forums/en-US/85007e72-90ad-4bd9-affd-9a24702219e6/canvasrenderingcontext2dsetlinedash-and-linedashoffset-missing?forum=winappswithhtml5) "
},
{
"description":"IE and Edge does not support globalAlpha for drawImage of SVG graphics. [see bug](https://connect.microsoft.com/IE/feedback/details/1847897/globalalpha-ignored-when-drawing-svg-to-canvas) [see testcase](https://jsfiddle.net/p7b0wmcu/)"
}
],
"categories":[
"Canvas",
"HTML5"
],
"stats":{
"ie":{
"5.5":"n",
"6":"p",
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"10":"y",
"11":"y"
},
"edge":{
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},
"firefox":{
"2":"a #1",
"3":"a #1",
"3.5":"a #1",
"3.6":"y",
"4":"y",
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"safari":{
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"ios_saf":{
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},
"op_mini":{
"all":"a #2"
},
"android":{
"2.1":"a #1",
"2.2":"a #1",
"2.3":"a #1",
"3":"y",
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"bb":{
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},
"op_mob":{
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},
"and_chr":{
"84":"y"
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"ie_mob":{
"10":"y",
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},
"and_uc":{
"12.12":"y"
},
"samsung":{
"4":"y",
"5.0-5.4":"y",
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},
"and_qq":{
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},
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"7.12":"y"
},
"kaios":{
"2.5":"y"
}
},
"notes":"For screen readers, IE, Chrome & Firefox support the [accessible canvas element sub-DOM](http://www.paciellogroup.com/blog/2012/06/html5-canvas-accessibility-in-firefox-13/).\r\nFirefox & Chrome also support the drawfocus ring.",
"notes_by_num":{
"1":"Does not support `toDataURL()`",
"2":"Opera Mini supports the canvas element, but is unable to play animations or run other more complex applications."
},
"usage_perc_y":97.61,
"usage_perc_a":0.99,
"ucprefix":false,
"parent":"",
"keywords":"toDataURL()",
"ie_id":"canvas",
"chrome_id":"5100084685438976",
"firefox_id":"",
"webkit_id":"",
"shown":true
}