Bug 31553 – Web Inspector: REGRESSION: in Profiles, focusing on function and restoring doesn't restore the original tree

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

[Mikhail Naganov]

Created attachment 43306 [details]
Screen shots with tree breakage samples

I tried it on a benchmark just because it generates lots of profiling data. Any other page with JavaScript can be actually used.

I observe the following problems:

- in Heavy view, after focusing on a non-expanded function node and then restoring back, its children disappear from view (see the first two samples on screen shots);
- in Tree view, after focusing on a non-expanded function node and then restoring back, node completely disappears.

[Mikhail Naganov]

Created attachment 43354 [details]
Proposed fix

[Timothy Hatcher]

Comment on attachment 43354 [details]
Proposed fix

> +        if (this.parent && this.parent.children.indexOf(this) >= 0) {
> +            this._savedPosition = {
> +                parent: this.parent,
> +                index: this.parent.children.indexOf(this)

You should cache the result of this.parent.children.indexOf so you don't need to do it twice.

When would you not be a child of your parent? Do you need the test.

[Timothy Hatcher]

Otherwise r+.

[Mikhail Naganov]

Created attachment 43411 [details]
Proposed fix, comments addressed

OK, I've introduced an assertion to be sure that a node for which savePosition is called has a parent. And yes, I think I don't need to check if a node with parent really exists in its children.

[WebKit Commit Bot]

Comment on attachment 43411 [details]
Proposed fix, comments addressed

Clearing flags on attachment: 43411

Committed r51139: <http://trac.webkit.org/changeset/51139>

[WebKit Commit Bot]

All reviewed patches have been landed.  Closing bug.