[Webkit-unassigned] [Bug 39895] New: Should have a client callback when page loading is deferred/resumed

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=39895

           Summary: Should have a client callback when page loading is
                    deferred/resumed
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
        OS/Version: All
            Status: UNCONFIRMED
          Severity: Enhancement
          Priority: P2
         Component: Platform
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: jmason at rim.com
                CC: staikos at kde.org, yong.li.webkit at gmail.com


It would be nice if PageGroupLoadDeferrer would call a client callback when loading is deferred or resumed.  That way ports could also defer platform-specific timers and long-running jobs that might interact with page loading during this time.

The obvious place for this is in FrameLoaderClient.  I propose adding two functions:

willDeferLoading - called for all frames being deferred before any action is taken, in the PageGroupLoadDeferrer constructor
didResumeLoading - called for all deferred frames after they have been resumed, in the PageGroupLoadDeferrer destructor

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