[Refactoring] ButtonInputType of <input> element should have innerElement to make <input> AuthorShadowDOM-ready

[Shinya Kawanaka]

ButtonInputType creates a ButtonRenderer, and its text is rendered using ButtonRenderer::setText.
Since the renderer of its text is always appended as last child of RenderButton, we cannot get text for <shadow> element.

We should create some inner element for ButtonInputType to make <input> AuthorShadowDOM ready.

[Shinya Kawanaka]

Created attachment 162474 [details]
WIP

[Shinya Kawanaka]

Needs a lot of rebaseline

and a few tests have image diff. We have to fix them.
editing/selection/3690703.html

[Dimitri Glazkov (Google)]

Comment on attachment 162474 [details]
WIP

Wow, this patch certainly cleans up the guts of the RenderButton nicely! Do we still need the RenderButton?

[Erik Arvidsson]

Comment on attachment 162474 [details]
WIP

View in context: https://bugs.webkit.org/attachment.cgi?id=162474&action=review

> Source/WebCore/html/BaseButtonInputType.cpp:70
> +    element()->userAgentShadowRoot()->replaceChild(text, element()->userAgentShadowRoot()->firstChild());

Is there a reason why this uses replaceChild instead of updating the existing text node using setData

[Shinya Kawanaka]

(In reply to comment #4)
> (From update of attachment 162474 [details])
> View in context: https://bugs.webkit.org/attachment.cgi?id=162474&action=review
> 
> > Source/WebCore/html/BaseButtonInputType.cpp:70
> > +    element()->userAgentShadowRoot()->replaceChild(text, element()->userAgentShadowRoot()->firstChild());
> 
> Is there a reason why this uses replaceChild instead of updating the existing text node using setData

Thanks! I've searched only Text class. I should have checked CharacterData.

[Shinya Kawanaka]

(In reply to comment #3)
> (From update of attachment 162474 [details])
> Wow, this patch certainly cleans up the guts of the RenderButton nicely! Do we still need the RenderButton?

When we could remove m_inner block, we might be able to do it. It's beyond the scope of this patch, though.

[Shinya Kawanaka]

Hmm. According to this discussion, we should not be able to select text in a button.
https://bugs.webkit.org/show_bug.cgi?id=13624

[Shinya Kawanaka]

Created attachment 162682 [details]
Patch

[Shinya Kawanaka]

Now we're using TextFragment.

[WebKit Review Bot]

Comment on attachment 162682 [details]
Patch

Clearing flags on attachment: 162682

Committed r129086: <http://trac.webkit.org/changeset/129086>

[WebKit Review Bot]

All reviewed patches have been landed.  Closing bug.

[WebKit Review Bot]

Re-opened since this is blocked by 97312

[Shinya Kawanaka]

Check this https://bugs.webkit.org/show_bug.cgi?id=97310

[Kent Tamura]

Shadow DOM API was removed.