[Webkit-unassigned] [Bug 51227] New: WKView needs to respond to WM_CANCELMODE

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=51227

           Summary: WKView needs to respond to WM_CANCELMODE
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: PC
        OS/Version: Windows XP
            Status: NEW
          Keywords: NeedsRadar, PlatformOnly
          Severity: Normal
          Priority: P2
         Component: WebKit2
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: aroben at apple.com
                CC: andersca at apple.com, sam at webkit.org


Classic WebKit's WebView had code to respond to WM_CANCELMODE (by calling EventHandler::lostMouseCapture, though it seems like we should probably at least send a mouse up event, too, if the mouse button was down before we got this message). WKView should do this, too. This is needed in order to behave correctly when a modal dialog appears, e.g.

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