[Webkit-unassigned] [Bug 103725] getBBox() return wrong bounding box in <use> tag
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Mon Dec 3 16:25:23 PST 2012
https://bugs.webkit.org/show_bug.cgi?id=103725
Philip Rogers <pdr at google.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |UNCONFIRMED
Resolution|WORKSFORME |
--- Comment #3 from Philip Rogers <pdr at google.com> 2012-12-03 16:27:48 PST ---
(In reply to comment #2)
> Shouldn't it print
> {height: 100, width: 100, y: 50, x: 50}
> instead?
>
> Since we are getting the bbox on <use>.
> It can also link to an external file, which from a usage point of view, is a encapsulated container?
> I also notice that <use> width and height attribute does not force a resize on the child content.
> Am I using <use> wrongly?
Re-opening because there seems to be some confusion about this.
For the record, here's how the major browsers are currently working:
Chrome Canary - {height: 100, width: 100, y: 100, x: 100}
Firefox Nightly - {height: 100, width: 100, y: 100, x: 100}
IE10 - {height: 100, width: 100, y: 100, x: 100}
Opera next: {height: 100, width: 100, y: 150, x: 150}
It looks like Cr/FF/IE are returning the bbox of the referenced element whereas Opera is returning the bbox of the the rendered content. I think Opera might be the most intuitive. I do not think {height: 100, width: 100, y: 50, x: 50} makes sense.
In particular, we (Chrome, IE) seem inconsistent in the multiple-use case:
<html>
<body>
<svg width="500" height="500">
<rect id="rect" x="0" y="0" width="100" height="100" opacity="0.5" fill="green"/>
<use id="use" xlink:href="#rect" x="50" y="50" />
<use id="use2" xlink:href="#use" x="200" y="200" />
</svg>
<script>
console.log(document.getElementById('rect').getBBox());
console.log(document.getElementById('use').getBBox());
console.log(document.getElementById('use2').getBBox());
</script>
</body>
</html>
@Dirk, should we be adding the x,y offset from the <use> attributes in returning the bbox?
Relevant spec: http://www.w3.org/TR/SVG/single-page.html#types-__svg__SVGLocatable__getBBox
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