[Webkit-unassigned] [Bug 117169] New: HTMLCanvasElement check attributes
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Mon Jun 3 14:21:50 PDT 2013
https://bugs.webkit.org/show_bug.cgi?id=117169
Summary: HTMLCanvasElement check attributes
Product: WebKit
Version: 528+ (Nightly build)
Platform: Unspecified
OS/Version: Unspecified
Status: UNCONFIRMED
Severity: Minor
Priority: P4
Component: Canvas
AssignedTo: webkit-unassigned at lists.webkit.org
ReportedBy: ruthiecftg at gmail.com
CC: dino at apple.com, webkit-bug-importer at group.apple.com
getContext and supportsContext, which will be implemented once the patch for bug 70117 is landed, each accept a contextId parameter (i.e. '2d', 'webkit-3d', etc.) and any number of attribute parameters. According to the WebGL specification, 3d attributes are currently the following booleans: 'alpha', 'depth', 'stencil', 'antialias', 'premultipliedAlpha', 'preserveDrawingBuffer' (http://www.khronos.org/registry/webgl/specs/latest/#context-creation-parameters).
A static helper function should be written that accepts the attributes that would be passed into getContext and supportsContext and checks that they are valid, i.e. they are the right type and right names.
For instance, getContext('2d', {'not_alpha' -> true, 'alpha' -> 4}) has malformed attributes as its second parameter and should return false.
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