Bug 178222 – Web Inspector: Layers tab mistakenly throws out the root element's layer.

• Status: RESOLVED
• Resolution: FIXED
• Component: Web Inspector

[Ross Kirsling]

Whoops, the Layers tab is currently always throwing out the layer for the root element.
(This means any worries about "no layers available" UX are moot...)

This should be fixed in LayerTreeManager#layersForNode, as the API is currently overtailored to the legacy sidebar.

[Ross Kirsling]

Created attachment 323542 [details]
Patch

[Blaze Burg]

Comment on attachment 323542 [details]
Patch

Can you write a test for the manager level change?

[Ross Kirsling]

It looks like there are protocol tests for LayerTree (which are not affected by this change) but no inspector tests for the manager. I'm really just trying to make the manager method a simple passthrough for the agent method -- do you know of an existing example where both get tested?

[Blaze Burg]

(In reply to Ross Kirsling from comment #3)
> It looks like there are protocol tests for LayerTree (which are not affected
> by this change) but no inspector tests for the manager. I'm really just
> trying to make the manager method a simple passthrough for the agent method
> -- do you know of an existing example where both get tested?

Tests in LayoutTests/inspector/layers/ are protocol tests, so they don't use the manager. That said, all you need to do is borrow the same test content from those tests and dump out the layers for root node.

Sorry to force you into writing tests, but we have to start somewhere. Fortunately there is test content you can already use.

[Ross Kirsling]

Created attachment 323627 [details]
Patch

[Blaze Burg]

Comment on attachment 323627 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=323627&action=review

r=me

> Source/WebInspectorUI/UserInterface/Views/LayerTreeDetailsSidebarPanel.js:83
> +            let layerForNode = layers[0] && layers[0].nodeId === this.domNode.id && !layers[0].isGeneratedContent ? layers[0] : null;

This is kind of complicated for one line, but that's okay I guess.

[WebKit Commit Bot]

Comment on attachment 323627 [details]
Patch

Clearing flags on attachment: 323627

Committed r223428: <https://trac.webkit.org/changeset/223428>

[WebKit Commit Bot]

All reviewed patches have been landed.  Closing bug.

[Radar WebKit Bug Importer]

<rdar://problem/35013279>