[Webkit-unassigned] [Bug 173225] New: WebItemProviderPasteboard should call its completion block immediately after a synchronous load

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=173225

            Bug ID: 173225
           Summary: WebItemProviderPasteboard should call its completion
                    block immediately after a synchronous load
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebCore Misc.
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: wenson_hsieh at apple.com

If WebItemProviderPasteboard finishes synchronous loading via -doAfterLoadingProvidedContentIntoFileURLs:synchronousTimeout:, it should immediately invoke its completion block instead of waiting until the next runloop. This adjusts for current changes on ToT UIKit that break text drop animations; since previewForLiftingItem: will soon be invoked immediately after performDrop:, we will need to call the item provider load completion block within the same runloop as the rest of the performDrop flow, otherwise the preview will be requested before text indicator data is available.

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