[Webkit-unassigned] [Bug 139442] New: [SVG Masking] Resources specified by url in -webkit-mask-image should use the cached resources system

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=139442

            Bug ID: 139442
           Summary: [SVG Masking] Resources specified by url in
                    -webkit-mask-image should use the cached resources
                    system
    Classification: Unclassified
           Product: WebKit
           Version: 528+ (Nightly build)
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: CSS
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: stavila at adobe.com

The first version of the masking implementation for <mask> elements defined in SVG does not cache the used resources (see CachedSVGDocument::canReuse). The reason for this was the need to be notified when the SVG document loaded in order to check if a valid <mask> element can be find inside it and, if not, switch to using normal images. If the document was retrieved from cache, this notification would not fire (MaskImageOperation::notifyFinished). An improvement to this implementation would be to find a way around this.

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