Bug 210944 – Reduce use of WebPageProxy::VoidCallback

• Component: New Bugs
• Status: RESOLVED FIXED

[Alex Christensen]

Reduce use of WebPageProxy::VoidCallback

[Alex Christensen]

Created attachment 397401 [details]
Patch

[Darin Adler]

Comment on attachment 397401 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=397401&action=review

> Source/WebKit/UIProcess/WebPageProxy.cpp:2176
> +    sendWithAsyncReply(Messages::WebPage::SetInitialFocus(forward, isKeyboardEventValid, keyboardEvent), [callbackFunction = WTFMove(callbackFunction), backgroundActivity = m_process->throttler().backgroundActivity("WebPageProxy::setInitialFocus"_s)] () mutable {

Why does this need to be "mutable"? Same question about the various other similar cases below.

> Source/WebKit/UIProcess/WebPageProxy.h:782
> +    void focusNextFocusedElement(bool isForward, CompletionHandler<void()>&& = []() { });

I believe our coding style is to omit the () here. There are 10 or more other cases of this in this patch. I suggest removing them all.

[Alex Christensen]

Calling a CompletionHandler deletes its callable immediately after calling, which requires it to be non-const.
Will remove unnecessary ().

[Alex Christensen]

Created attachment 397503 [details]
Patch

[Darin Adler]

Comment on attachment 397503 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=397503&action=review

> Source/WebKit/UIProcess/WebPageProxy.cpp:2314
> +    sendWithAsyncReply(Messages::WebPage::ExecuteEditCommandWithCallback(commandName, argument), [callbackFunction = WTFMove(callbackFunction), backgroundActivity = m_process->throttler().backgroundActivity("WebPageProxy::executeEditCommand"_s)] () mutable {

One last case of () that you didn't delete yet.

[Alex Christensen]

Comment on attachment 397503 [details]
Patch

That is unfortunately necessary because of the mutable in C++ until http://wg21.link/P1102 is accepted.

[EWS]

Committed r260764: <https://trac.webkit.org/changeset/260764>

All reviewed patches have been landed. Closing bug and clearing flags on attachment 397503 [details].

[Radar WebKit Bug Importer]

<rdar://problem/62457381>