move directionOfEnclosingBlock() to be global so that it could be reused

[Xiaomei Ji]

we should provide a directionOfEnclosingBlock(Node*) so that it could be reused in SelectionController and other functions in visible_units.cpp, such as moving caret by word in visual order (which needs to know the direction of box and enclosing block, and the caret movement direction).

[Xiaomei Ji]

Created attachment 87147 [details]
patch

[Ryosuke Niwa]

Comment on attachment 87147 [details]
patch

View in context: https://bugs.webkit.org/attachment.cgi?id=87147&action=review

> Source/WebCore/editing/SelectionController.cpp:339
> +    return WebCore::directionOfEnclosingBlock(m_selection.extent().anchorNode()); 

This isn't right.  You're calling anchorNode() here even though the original code called containerNode().

[Xiaomei Ji]

Created attachment 87149 [details]
patch

[Ryosuke Niwa]

Comment on attachment 87149 [details]
patch

View in context: https://bugs.webkit.org/attachment.cgi?id=87149&action=review

> Source/WebCore/ChangeLog:8
> +        Provide global function directionOfEnclosingBlock(Node*) so that it could be
> +        reused in SelectionController and other functionalities that need enclosing
> +        block's direcionality, such as moving caret by word in visual order.
> +        https://bugs.webkit.org/show_bug.cgi?id=57233.

This isn't really a standard way of writing a change long entry.  Please do:

move directionOfEnclosingBlock() to be global so that it could be reused
https://bugs.webkit.org/show_bug.cgi?id=57233

Provide global function directionOfEnclosingBlock(Node*) so that it could be
reused in SelectionController and other functionalities that need enclosing
block's direcionality, such as moving caret by word in visual order.

[Xiaomei Ji]

Committed r82121: <http://trac.webkit.org/changeset/82121>