Bug 99336 – Web Inspector: [Elements] Double-click to live edit style tags changes text to 'undefined' in some situations

• Component: Web Inspector (Deprecated)
• Status: RESOLVED FIXED

[Alexander Pavlov (apavlov)]

1. load a page with an inline style tag inside of a div (http://jsfiddle.net/show)
2. open the inspector
3. expand the div, double click on the body styles inside of the style tag

Upstreaming http://code.google.com/p/chromium/issues/detail?id=152973

[Alexander Pavlov (apavlov)]

Created attachment 168728 [details]
Patch

[Eric Seidel (no email)]

Comment on attachment 168728 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=168728&action=review

> Source/WebCore/inspector/front-end/ElementsTreeOutline.js:1327
> +            container.innerText = textNode._originalContent || container.innerText;

textContent is the new hotness.  Why innerText (which is an IE extension) instead?

[Alexander Pavlov (apavlov)]

(In reply to comment #2)
> (From update of attachment 168728 [details])
> View in context: https://bugs.webkit.org/attachment.cgi?id=168728&action=review
> 
> > Source/WebCore/inspector/front-end/ElementsTreeOutline.js:1327
> > +            container.innerText = textNode._originalContent || container.innerText;
> 
> textContent is the new hotness.  Why innerText (which is an IE extension) instead?

Thanks for the hint; it's legacy code. Is textContent far better than innerText (from the client's PoV) and is it worth migrating to the former? AFAIK, the only tangible difference is whitespace handling, unless I'm missing something...

[Alexander Pavlov (apavlov)]

(In reply to comment #2)
> (From update of attachment 168728 [details])
> View in context: https://bugs.webkit.org/attachment.cgi?id=168728&action=review
> 
> > Source/WebCore/inspector/front-end/ElementsTreeOutline.js:1327
> > +            container.innerText = textNode._originalContent || container.innerText;
> 
> textContent is the new hotness.  Why innerText (which is an IE extension) instead?

After double-checking, I made sure innerText is there not without reason. Setting textContent collapses all whitespace and, what's most important, newlines, so that multiline text nodes all occur on a single line. We had a bug for that a while ago, and most likely it was fixed by using innerText rather than textContent in this snippet.

[Alexander Pavlov (apavlov)]

Created attachment 168903 [details]
Patch

[Pavel Feldman]

Comment on attachment 168903 [details]
Patch

We should never use innerText. Also, this change needs a test.

[Alexander Pavlov (apavlov)]

Created attachment 168939 [details]
Patch

[Vsevolod Vlasov]

Comment on attachment 168939 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=168939&action=review

> Source/WebCore/inspector/front-end/ElementsTreeOutline.js:1326
> +            var node = this.representedObject;

I would rename textNode to textNodeElement  and node to textNode.

> Source/WebCore/inspector/front-end/ElementsTreeOutline.js:1331
>          var config = new WebInspector.EditingConfig(this._textNodeEditingCommitted.bind(this), this._editingCancelled.bind(this));

You should bind textNode parameter for _textNodeEditingCommitted to avoid duplicating the code in _textNodeEditingCommitted.

[Alexander Pavlov (apavlov)]

Committed r131455: <http://trac.webkit.org/changeset/131455>