Bug 173897 – Unify post-painting callbacks

• Component: New Bugs
• Status: NEW

[Tim Horton]

Unify post-painting callbacks

[Tim Horton]

Created attachment 313964 [details]
Patch

[Darin Adler]

Comment on attachment 313964 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=313964&action=review

r=me assuming everything works as well as I expect it will.

> Source/WebCore/page/FrameView.cpp:1238
> +    frame().page()->addOneShotPostPaintCallback([protectedThis = makeRef(*this)] {
> +        InspectorInstrumentation::didComposite(protectedThis.get().frame());
> +    });

I probably would have just protected the frame, not the frame view.

> Source/WebCore/page/Page.cpp:2425
> +    while (!m_oneShotPostPaintCallbacks.isEmpty()) {
> +        auto callback = m_oneShotPostPaintCallbacks.takeLast();
> +        callback();
> +    }

I would have written this as a one-liner, I think.

> Source/WebCore/page/Page.h:604
> +    WEBCORE_EXPORT void addOneShotPostPaintCallback(WTF::Function<void()>&&);

Can this be on MainFrame instead of Page? Would avoid having to do null checks. Or maybe if there was a MainFrameView.

> Source/WebKit/mac/WebCoreSupport/WebChromeClient.mm:1128
> +        if (auto corePage = [webView page])
> +            corePage->dispatchAndClearPostPaintCallbacks();

Annoying to capture the web view just so we can get its page. Makes me wish the function was on MainFrame so we could just capture that.

> Source/WebKit2/WebProcess/WebPage/mac/TiledCoreAnimationDrawingArea.h:91
> +    void scheduleOneShotPostPaintCallback() override;

final?