Bug 181912 – Uncaught Exception: TypeError: this._textEditor.toggleUnexecutedCodeHighlights().then is not a function

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

[Nikita Vasilyev]

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Inspected URL:        file:///tmp/slow-console.html
Loading completed:    true
Frontend User Agent:  Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_3) AppleWebKit/605.1.16+ (KHTML, like Gecko)

Uncaught Exceptions:
 - TypeError: this._textEditor.toggleUnexecutedCodeHighlights().then is not a function. (In 'this._textEditor.toggleUnexecutedCodeHighlights().then(() => {
            this._codeCoverageButtonNavigationItem.enabled = true;
        })', 'this._textEditor.toggleUnexecutedCodeHighlights().then' is undefined) (at TextResourceContentView.js:238:63)
    _toggleUnexecutedCodeHighlights @ TextResourceContentView.js:238:63
    dispatch @ Object.js:170:30
    dispatchEventToListeners @ Object.js:177:17
    _mouseClicked @ ButtonNavigationItem.js:138:38
    _mouseClicked @ [native code]
-------

* STEPS TO REPRODUCE
1. Save http://nv.github.io/webkit-inspector-bugs/slow-console/ locally so its JS can be edited in Web Inspector.
2. Open the saved HTML page using the file scheme.
3. Edit index.js (e.g. add a comment)
4. Press on the [c] icon to enable code coverage profiler.

Expected:
It's fine if [c] gets grayed out after editing a script so it can't be enabled.

[Radar WebKit Bug Importer]

<rdar://problem/36700022>

[Nikita Vasilyev]

This is poorly architectured (likely by me 3 years ago).

The [c] icon can only have 3 states:
- gray: disabled, can't be activated.
- black: not activated.
- blue: activated.

The icon updates on setting change. The setting can only have two states:
- enabled.
- disabled.

The setting change is used to update the icon state. Which is wrong, it doesn't even have all 3 states.

The setting should only indicate user preference: enabled (when possible) and disabled.

Instead, the setting is user as a communication channel to set the icon to deactivated state. Currently, the setting gets set to disabled when:
- Enabling pretty-print.
- Editing a script.

Pretty-printing and editing shouldn't change the setting, yet these actions should set the icon to disabled state.

[Nikita Vasilyev]

(In reply to Nikita Vasilyev from comment #2)
> The icon updates on setting change. The setting can only have two states:
> - enabled.
> - disabled.

To clarify, by the setting I mean WI.enableControlFlowProfilerSetting object.
It's not related to the settings GUI.

[Nikita Vasilyev]

Created attachment 336257 [details]
Patch

[Matt Baker]

Comment on attachment 336257 [details]
Patch

r=me

[WebKit Commit Bot]

Comment on attachment 336257 [details]
Patch

Clearing flags on attachment: 336257

Committed r229874: <https://trac.webkit.org/changeset/229874>

[WebKit Commit Bot]

All reviewed patches have been landed.  Closing bug.