Bug 87452 – [CSS + Canvas] content:-webkit-canvas(test) in <img> element is not working properly

• Component: CSS
• Status: RESOLVED INVALID

[Alexei]

Created attachment 143955 [details]
text example

There is a longstanding problem with the "CSS" and "Canvas" at the same time. If the function "-webkit-canvas ()" is specified in the property "content" in <img> element, then the original image size is set to zero like a "DIV" elements. I beg to correct the work "-webkit-canvas ()" in the property "content". For ideas, the size should be changed immediately if JS was called "document.getCSSCanvasContext ()".

[Alexei]

*** Bug 86329 has been marked as a duplicate of this bug. ***

[Alexey Proskuryakov]

You have filed multiple bugs on this issue. Could you please explain why it is important? That would help prioritize it much better than unsubstantiated requests do.

[Dean Jackson]

I'm also confused. It looks like you're saying the other bugs you filed are duplicates.

[Dean Jackson]

Alexei, could you file one bug and stop changing the others (duplicating, changing priority, etc)?

[Alexei]

Messages does not editable. I created many bugs with one reason.

[Alexei]

This is FINAL BUG!

[Dean Jackson]

OK. I think this is a bug, but also slightly unspecified behaviour. It's not clear what the size of the CSS content is, nor whether it should be resized if it changes.

BTW - it's probably our fault that this is unspecified, since we invented webkit-canvas.

[Radar WebKit Bug Importer]

<rdar://problem/11553297>

[Alexei]

Size must be defined from JS code:

<style>
img {
  content:-webkit-canvas(test);
}
</style>
<script>
var ctx = document.getCSSCanvasContext("2d","test",150,150);
</script>


Original size must be 150x150 like:

<style>
img {
  content: url(icon.png);
}
</style>

[Alexei]

v2.0 proposal: https://bugs.webkit.org/show_bug.cgi?id=88701