Bug 178805 – Web Inspector: Canvas Tab: starting a second recording doesn't show red titlebar if the first recording was empty

• Component: Web Inspector
• Status: RESOLVED FIXED

[Blaze Burg]

STR:

1. Go to a site with a canvas that doesn't do anything without interaction (acko.net)
2. Select the Canvas, start a recording
3. Stop the recording
=> Nothing happens, the recording is empty
4. Start a new recording again
=> Red titlebar not present, Recording button doesn't change from circle to square

[Radar WebKit Bug Importer]

<rdar://problem/35176303>

[Devin Rousso]

Created attachment 324865 [details]
Patch

[Blaze Burg]

Comment on attachment 324865 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=324865&action=review

r=me with some test issues. Please re-EWS the test changes, thanks.

> LayoutTests/inspector/canvas/recording-2d.html:480
> +                throw "Missing 2D canvas.";

Does an async function wrap this in an Error? If not, please throw an Error. Throwing a string will lose exception context, IIRC.

> LayoutTests/inspector/canvas/recording-2d.html:493
> +            await CanvasAgent.stopRecording(canvas.identifier);

It is weird to use CanvasAgent directly, but use CanvasManager right above. I'd prefer you stick to manager API if using inspector-test.js

[Devin Rousso]

Comment on attachment 324865 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=324865&action=review

>> LayoutTests/inspector/canvas/recording-2d.html:493
>> +            await CanvasAgent.stopRecording(canvas.identifier);
> 
> It is weird to use CanvasAgent directly, but use CanvasManager right above. I'd prefer you stick to manager API if using inspector-test.js

The issue with using CanvasManager is that it doesn't return a promise, meaning that we cant use async-await.  I'll restructure the test to make it work.

[Devin Rousso]

Created attachment 324895 [details]
Patch

[Blaze Burg]

Comment on attachment 324895 [details]
Patch

r=mews

[Blaze Burg]

(In reply to Devin Rousso from comment #4)
> Comment on attachment 324865 [details]
> Patch
> 
> View in context:
> https://bugs.webkit.org/attachment.cgi?id=324865&action=review
> 
> >> LayoutTests/inspector/canvas/recording-2d.html:493
> >> +            await CanvasAgent.stopRecording(canvas.identifier);
> > 
> > It is weird to use CanvasAgent directly, but use CanvasManager right above. I'd prefer you stick to manager API if using inspector-test.js
> 
> The issue with using CanvasManager is that it doesn't return a promise,
> meaning that we cant use async-await.  I'll restructure the test to make it
> work.

I figured. Sorry to ruin your fun. Someday we'll fix that?

[WebKit Commit Bot]

Comment on attachment 324895 [details]
Patch

Clearing flags on attachment: 324895

Committed r223998: <https://trac.webkit.org/changeset/223998>

[WebKit Commit Bot]

All reviewed patches have been landed.  Closing bug.