Web Inspector: assertion failure when editing inline styles

[Tobias Reiss]

Editing inline styles causes a cascade of procedures ending in `fetchedStyleSheetContent` which expects the CSSStyleSheet to have a valid URL. This is never the case since inline styles neither have a "sourceURL" nor a "parent frame". Actually it looks like using the `CSSStyleSheet` class for inline styles is not what http://www.w3.org/TR/DOM-Level-2-Style/css.html#CSS-htmlelementcss-h3 specifies.

[Radar WebKit Bug Importer]

<rdar://problem/20608788>

[Tobias Reiss]

Created attachment 251139 [details]
patch

[Tobias Reiss]

Comment on attachment 251139 [details]
patch

View in context: https://bugs.webkit.org/attachment.cgi?id=251139&action=review

> Source/WebInspectorUI/UserInterface/Models/CSSStyleSheet.js:-28
> -    constructor(id, url, parentFrame)

This change is not directly related to the bugfix. It turned out that "url" and "parentFrame" are never passed to the constructor.

> Source/WebInspectorUI/UserInterface/Models/DOMNodeStyles.js:572
> +        if (type === WebInspector.CSSStyleDeclaration.Type.Attribute)

This fixes a linter error.

[Timothy Hatcher]

Comment on attachment 251139 [details]
patch

View in context: https://bugs.webkit.org/attachment.cgi?id=251139&action=review

Looks good! Make these tweaks and I can r+ this.

> Source/WebInspectorUI/UserInterface/Controllers/CSSStyleManager.js:134
> +        if (styleSheet.isCssInlineStyle)

See below. This will need to change to: styleSheet.isInlineStyle()

> Source/WebInspectorUI/UserInterface/Models/CSSStyleSheet.js:87
> +    get isCssInlineStyle()

CSS should be all caps. No XMLHttpRequest precedent here. I don't think repeating CSS is needed either.

We also don't use is for getters. This should be a function.

I'd go with: isInlineStyle()

> Source/WebInspectorUI/UserInterface/Models/CSSStyleSheet.js:92
> +    markAsCssInlineStyle()

Ditto. Go with: markAsInlineStyle().

[Tobias Reiss]

Created attachment 251637 [details]
patch

[Tobias Reiss]

Looking at the Changelog the "webkit-patch" script for some reasons generated the following:
- "WebInspector.CSSStyleSheet.isInlineStyle" (not on prototype)
- "WebInspector.CSSStyleSheet.prototype.markAsInlineStyle" (on prototype)

But both functions are actually supposed to be on the prototype.

[Timothy Hatcher]

Comment on attachment 251637 [details]
patch

Nice!

[WebKit Commit Bot]

Comment on attachment 251637 [details]
patch

Clearing flags on attachment: 251637

Committed r183311: <http://trac.webkit.org/changeset/183311>

[WebKit Commit Bot]

All reviewed patches have been landed.  Closing bug.