[Webkit-unassigned] [Bug 81939] New: -webkit-image-set should update dynamically when the device scale factor changes

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=81939

           Summary: -webkit-image-set should update dynamically when the
                    device scale factor changes
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: CSS
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: bdakin at apple.com


https://bugs.webkit.org/show_bug.cgi?id=80322 added a new CSS feature to WebKit called -webkit-image-set. The idea behind the feature is to allow authors to provide multiple variants of the same image at differing resolutions, and to allow the User Agent to choose the resource that is most appropriate at the time. This will allow authors to specify high resolution resources for iPhone's retina display, and it will allow User Agents to choose different resolution resources when content is scaled or zoomed. 

As it's currently implemented, WebKit will only consider the device scale factor when choosing an image. -webkit-image-set should re-access the resource options if the device scale factor changes.

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