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[webaudioapi] Specialize event handler type

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The event handler was defined to take an argument of generic type Event:
this loses the audio event specific type info as defined in the (unused)
AudioProcessingEvent interface.

This patch declares the onaudioprocessing event handler as accepting an
argument of the correct type.
This commit is contained in:
Hraban Luyat 2015-02-16 05:18:49 +01:00
parent bcf610fef5
commit d24e36d975
2 changed files with 13 additions and 1 deletions
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8
webaudioapi/waa-tests.ts
View File

@ -323,3 +323,11 @@ declare var footstepsBuffer: any;
context.startRendering();
}
// Test automatic type inference of the audio processing event handler
() => {
var context = new AudioContext();
var recorder = context.createScriptProcessor(2048, 1, 1);
recorder.onaudioprocess = function (e) {
e.inputBuffer;
};
}

6
webaudioapi/waa.d.ts vendored
View File

@ -601,6 +601,10 @@ interface AudioBufferSourceNode extends AudioNode {
interface MediaElementAudioSourceNode extends AudioNode {
}
interface AudioProcessingEventHandler {
(e: AudioProcessingEvent): void;
}
/**
* This interface is an AudioNode which can generate, process, or analyse audio directly using JavaScript.
*
@ -617,7 +621,7 @@ interface ScriptProcessorNode extends AudioNode {
/**
* An event listener which is called periodically for audio processing. An event of type AudioProcessingEvent will be passed to the event handler.
*/
onaudioprocess: EventHandler;
onaudioprocess: AudioProcessingEventHandler;
/**
* The size of the buffer (in sample-frames) which needs to be processed each time onprocessaudio is called. Legal values are (256, 512, 1024, 2048, 4096, 8192, 16384).