Bug 156223 – Web Inspector: Should not allow selecting no Timelines when editing in Timeline tab

• Component: Web Inspector
• Status: RESOLVED FIXED

[Joseph Pecoraro]

* SUMMARY
Should not allow selecting no Timelines when editing in Timeline panel.

* STEPS TO REPRODUCE
1. Open inspector
2. Show Timelines tab
3. Click "Edit"
4. Uncheck all Timelines
5. Click "Done"
  => Poor UI

I would expect that you can't click "Done" unless at least one timeline is selected.

[Radar WebKit Bug Importer]

<rdar://problem/25552221>

[Matt Baker]

We could either:

a) Disable "Done" if no timeline are selected.
b) Prevent deselecting the last timeline.

I think I like the original suggestion (a).

[Timothy Hatcher]

I like option A too.

[Matt Baker]

Created attachment 275686 [details]
[Patch] Proposed Fix

[Joseph Pecoraro]

Comment on attachment 275686 [details]
[Patch] Proposed Fix

View in context: https://bugs.webkit.org/attachment.cgi?id=275686&action=review

r=me, but test switching to "change" event

> Source/WebInspectorUI/UserInterface/Views/TimelineTreeElement.js:90
> +        button.addEventListener(WebInspector.TreeElementStatusButton.Event.Clicked, () => { this._dispatchEnabledDidChangeEvent(); });

Seems this click handler would be better off as:

    checkboxElement.addEventListener("change", () => { this._dispatchEnabledDidChangeEvent(); });

Instead of relying on TreeElementStatusButton clicked events, which might not change the checkbox state. And you are guaranteed that this will happen _after_ the checkbox changes. Right now I am not sure of the order.

Note, you need both this and the _clickHandler method, since programmatically changing the checked state of an input does not dispatch a "change" event.

[Matt Baker]

Created attachment 275696 [details]
[Patch] Proposed Fix

[WebKit Commit Bot]

Comment on attachment 275696 [details]
[Patch] Proposed Fix

Clearing flags on attachment: 275696

Committed r199077: <http://trac.webkit.org/changeset/199077>

[WebKit Commit Bot]

All reviewed patches have been landed.  Closing bug.