Bug 215237 – Add AudioProcessingEvent Constructor

• Component: Web Audio
• Status: RESOLVED FIXED

[Clark Wang]

Add constructor according to spec: https://www.w3.org/TR/webaudio/#audioprocessingevent

[Clark Wang]

Created attachment 406123 [details]
Patch

[Chris Dumez]

Comment on attachment 406123 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=406123&action=review

> Source/WebCore/Modules/webaudio/AudioProcessingEvent.cpp:56
> +    : Event(eventType, CanBubble::Yes, IsCancelable::No)

You need to be calling this other Event constructor:
Event(eventType, eventInitDict, IsTrusted::No)

AudioProcessingEventInit subclasses EventInit which allows the client to set bubbles / cancelable to something else.

Note that this indicates you don't have enough test coverage, please add a test.

> Source/WebCore/Modules/webaudio/AudioProcessingEvent.h:46
>      static Ref<AudioProcessingEvent> createForBindings()

I don't think we need this one.

> Source/WebCore/Modules/webaudio/AudioProcessingEvent.h:60
>      AudioProcessingEvent();

I don't think we need this constructor.

> Source/WebCore/Modules/webaudio/AudioProcessingEvent.idl:30
>      readonly attribute unrestricted double playbackTime;

You can remove unrestricted.

[Clark Wang]

Created attachment 406297 [details]
Patch

[Chris Dumez]

Comment on attachment 406297 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=406297&action=review

> LayoutTests/webaudio/audioprocessingevent-constructor.html:10
> +shouldThrowErrorName("event = new AudioProcessingEvent('foo', { renderedBuffer: null });", "TypeError");

renderedBuffer is not part of your dictionary. Please add more checks for cases that are supposed to throw. For example:
- playbackTime is missing  (but other members are present)
- inputBuffer is missing (but other members are present)
- outputBuffer is missing (but other members are present)
- inputBuffer/outputBuffer is null
- inputBuffer/outputBuffer has wrong type

> LayoutTests/webaudio/audioprocessingevent-constructor.html:19
> +shouldBeFalse("event.composed");

Please add shouldBeFalse("event.isTrusted");

[Clark Wang]

Created attachment 406307 [details]
Patch

[Clark Wang]

(In reply to Chris Dumez from comment #4)
> Comment on attachment 406297 [details]
> Patch
> 
> View in context:
> https://bugs.webkit.org/attachment.cgi?id=406297&action=review
> 
> > LayoutTests/webaudio/audioprocessingevent-constructor.html:10
> > +shouldThrowErrorName("event = new AudioProcessingEvent('foo', { renderedBuffer: null });", "TypeError");
> 
> renderedBuffer is not part of your dictionary. Please add more checks for
> cases that are supposed to throw. For example:
> - playbackTime is missing  (but other members are present)
> - inputBuffer is missing (but other members are present)
> - outputBuffer is missing (but other members are present)
> - inputBuffer/outputBuffer is null
> - inputBuffer/outputBuffer has wrong type
> 
> > LayoutTests/webaudio/audioprocessingevent-constructor.html:19
> > +shouldBeFalse("event.composed");
> 
> Please add shouldBeFalse("event.isTrusted");

Added these test cases, thanks.

[Chris Dumez]

Looks like your patch failed to apply.

[Clark Wang]

Created attachment 406308 [details]
Patch

[Clark Wang]

(In reply to Chris Dumez from comment #7)
> Looks like your patch failed to apply.

Just rebased, hopefully works now.

[EWS]

Committed r265443: <https://trac.webkit.org/changeset/265443>

All reviewed patches have been landed. Closing bug and clearing flags on attachment 406308 [details].

[Radar WebKit Bug Importer]

<rdar://problem/66794462>