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Bug 10023 - Behavior of 'currentColor' in CanvasRenderingContext2D poorly defined
Summary: Behavior of 'currentColor' in CanvasRenderingContext2D poorly defined
Status: RESOLVED FIXED
Alias: None
Product: HTML WG
Classification: Unclassified
Component: pre-LC1 HTML Canvas 2D Context (editor: Ian Hickson) (show other bugs)
Version: unspecified
Hardware: All All
: P2 normal
Target Milestone: ---
Assignee: Ian 'Hixie' Hickson
QA Contact: HTML WG Bugzilla archive list
URL:
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Keywords:
Depends on:
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Reported: 2010-06-27 20:00 UTC by Andreas Kling
Modified: 2010-10-05 12:59 UTC (History)
4 users (show)

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Description Andreas Kling 2010-06-27 20:00:34 UTC
The spec currently implies that CanvasGradient should honor the 'currentColor' value and resolve it to the canvas element's current color value at the time of assignment.

If this is the case, it means that CanvasGradient objects are linked to the rendering context that created them for purposes of color resolution.

This linkage should either be explicit in the spec, or removed.

Personally, I don't see the use-case for supporting 'currentColor' and believe it could be removed altogether from the canvas API.
Comment 1 Ian 'Hixie' Hickson 2010-08-28 04:42:21 UTC
EDITOR'S RESPONSE: This is an Editor's Response to your comment. If you are satisfied with this response, please change the state of this bug to CLOSED. If you have additional information and would like the editor to reconsider, please reopen this bug. If you would like to escalate the issue to the full HTML Working Group, please add the TrackerRequest keyword to this bug, and suggest title and text for the tracker issue; or you may create a tracker issue yourself, if you are able to do so. For more details, see this document:
   http://dev.w3.org/html5/decision-policy/decision-policy.html

Status: Accepted
Change Description: see diff given below
Rationale: Concurred with reporter's comments (for CanvasGradient, anyway).
Comment 2 contributor 2010-08-28 04:42:35 UTC
Checked in as WHATWG revision r5389.
Check-in comment: Neuter 'currentColor' for addColorStop(), so that we don't have to track around which <canvas> created which CanvasGradient all the time.
http://html5.org/tools/web-apps-tracker?from=5388&to=5389