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LibWeb: Add stub IDL interface for AudioNode

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An AudioNode is the fundamental building block used in 'Audio
Contexts'. In our immediate case, the audio node we are working towards
implementing is an oscillating source node.
This commit is contained in:
Shannon Booth 2024-04-28 12:46:07 +12:00 committed by Andreas Kling
parent 5ae0ac7b73
commit 6661c68b28
7 changed files with 195 additions and 0 deletions
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1
Meta/Lagom/Tools/CodeGenerators/LibWeb/BindingsGenerator/IDLGenerators.cpp
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@ -33,6 +33,7 @@ static bool is_platform_object(Type const& type)
"AnimationEffect"sv,
"AnimationTimeline"sv,
"Attr"sv,
"AudioNode"sv,
"AudioParam"sv,
"AudioTrack"sv,
"BaseAudioContext"sv,

1
Userland/Libraries/LibWeb/CMakeLists.txt
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@ -659,6 +659,7 @@ set(SOURCES
WebAssembly/WebAssembly.cpp
WebAudio/AudioBuffer.cpp
WebAudio/AudioContext.cpp
WebAudio/AudioNode.cpp
WebAudio/AudioParam.cpp
WebAudio/BaseAudioContext.cpp
WebAudio/OfflineAudioContext.cpp

1
Userland/Libraries/LibWeb/Forward.h
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@ -681,6 +681,7 @@ class Table;
namespace Web::WebAudio {
class AudioContext;
class AudioNode;
class AudioParam;
class BaseAudioContext;
class OfflineAudioContext;

96
Userland/Libraries/LibWeb/WebAudio/AudioNode.cpp Normal file
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@ -0,0 +1,96 @@
/*
* Copyright (c) 2024, Shannon Booth <shannon@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibWeb/Bindings/Intrinsics.h>
#include <LibWeb/WebAudio/AudioNode.h>
namespace Web::WebAudio {
JS_DEFINE_ALLOCATOR(AudioNode);
AudioNode::~AudioNode() = default;
// https://webaudio.github.io/web-audio-api/#dom-audionode-connect
WebIDL::ExceptionOr<JS::NonnullGCPtr<AudioNode>> AudioNode::connect(JS::NonnullGCPtr<AudioNode> destination_node, WebIDL::UnsignedLong output, WebIDL::UnsignedLong input)
{
(void)destination_node;
(void)output;
(void)input;
return WebIDL::NotSupportedError::create(realm(), "FIXME: Implement AudioNode::connect (AudioNode)"_fly_string);
}
// https://webaudio.github.io/web-audio-api/#dom-audionode-connect-destinationparam-output
WebIDL::ExceptionOr<JS::NonnullGCPtr<AudioNode>> AudioNode::connect(JS::NonnullGCPtr<AudioParam> destination_param, WebIDL::UnsignedLong output)
{
(void)destination_param;
(void)output;
return WebIDL::NotSupportedError::create(realm(), "FIXME: Implement AudioNode::connect (AudioParam)"_fly_string);
}
// https://webaudio.github.io/web-audio-api/#dom-audionode-disconnect
void AudioNode::disconnect()
{
dbgln("FIXME: Implement AudioNode::disconnect()");
}
// https://webaudio.github.io/web-audio-api/#dom-audionode-disconnect-output
void AudioNode::disconnect(WebIDL::UnsignedLong output)
{
(void)output;
dbgln("FIXME: Implement AudioNode::disconnect(output)");
}
// https://webaudio.github.io/web-audio-api/#dom-audionode-disconnect-destinationnode
void AudioNode::disconnect(JS::NonnullGCPtr<AudioNode> destination_node)
{
(void)destination_node;
dbgln("FIXME: Implement AudioNode::disconnect(destination_node)");
}
// https://webaudio.github.io/web-audio-api/#dom-audionode-disconnect-destinationnode-output
void AudioNode::disconnect(JS::NonnullGCPtr<AudioNode> destination_node, WebIDL::UnsignedLong output)
{
(void)destination_node;
(void)output;
dbgln("FIXME: Implement AudioNode::disconnect(destination_node, output)");
}
// https://webaudio.github.io/web-audio-api/#dom-audionode-disconnect-destinationnode-output-input
void AudioNode::disconnect(JS::NonnullGCPtr<AudioNode> destination_node, WebIDL::UnsignedLong output, WebIDL::UnsignedLong input)
{
(void)destination_node;
(void)output;
(void)input;
dbgln("FIXME: Implement AudioNode::disconnect(destination_node, output, input)");
}
// https://webaudio.github.io/web-audio-api/#dom-audionode-disconnect-destinationparam
void AudioNode::disconnect(JS::NonnullGCPtr<AudioParam> destination_param)
{
(void)destination_param;
dbgln("FIXME: Implement AudioNode::disconnect(destination_param)");
}
// https://webaudio.github.io/web-audio-api/#dom-audionode-disconnect-destinationparam-output
void AudioNode::disconnect(JS::NonnullGCPtr<AudioParam> destination_param, WebIDL::UnsignedLong output)
{
(void)destination_param;
(void)output;
dbgln("FIXME: Implement AudioNode::disconnect(destination_param, output)");
}
void AudioNode::initialize(JS::Realm& realm)
{
Base::initialize(realm);
WEB_SET_PROTOTYPE_FOR_INTERFACE(AudioNode);
}
void AudioNode::visit_edges(Cell::Visitor& visitor)
{
Base::visit_edges(visitor);
}
}

49
Userland/Libraries/LibWeb/WebAudio/AudioNode.h Normal file
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@ -0,0 +1,49 @@
/*
* Copyright (c) 2024, Shannon Booth <shannon@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Optional.h>
#include <LibJS/Forward.h>
#include <LibWeb/Bindings/AudioNodePrototype.h>
#include <LibWeb/Bindings/PlatformObject.h>
#include <LibWeb/DOM/EventTarget.h>
#include <LibWeb/WebIDL/Types.h>
namespace Web::WebAudio {
// https://webaudio.github.io/web-audio-api/#AudioNodeOptions
struct AudioNodeOptions {
Optional<WebIDL::UnsignedLong> channel_count;
Bindings::ChannelCountMode channel_count_mode;
Bindings::ChannelInterpretation channel_interpretation;
};
// https://webaudio.github.io/web-audio-api/#AudioNode
class AudioNode : public DOM::EventTarget {
WEB_PLATFORM_OBJECT(AudioNode, DOM::EventTarget);
JS_DECLARE_ALLOCATOR(AudioNode);
public:
virtual ~AudioNode() override;
WebIDL::ExceptionOr<JS::NonnullGCPtr<AudioNode>> connect(JS::NonnullGCPtr<AudioNode> destination_node, WebIDL::UnsignedLong output = 0, WebIDL::UnsignedLong input = 0);
WebIDL::ExceptionOr<JS::NonnullGCPtr<AudioNode>> connect(JS::NonnullGCPtr<AudioParam> destination_param, WebIDL::UnsignedLong output = 0);
void disconnect();
void disconnect(WebIDL::UnsignedLong output);
void disconnect(JS::NonnullGCPtr<AudioNode> destination_node);
void disconnect(JS::NonnullGCPtr<AudioNode> destination_node, WebIDL::UnsignedLong output);
void disconnect(JS::NonnullGCPtr<AudioNode> destination_node, WebIDL::UnsignedLong output, WebIDL::UnsignedLong input);
void disconnect(JS::NonnullGCPtr<AudioParam> destination_param);
void disconnect(JS::NonnullGCPtr<AudioParam> destination_param, WebIDL::UnsignedLong output);
protected:
virtual void initialize(JS::Realm&) override;
virtual void visit_edges(Cell::Visitor&) override;
};
}

46
Userland/Libraries/LibWeb/WebAudio/AudioNode.idl Normal file
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@ -0,0 +1,46 @@
#import <WebAudio/AudioParam.idl>
#import <WebAudio/BaseAudioContext.idl>
// https://webaudio.github.io/web-audio-api/#enumdef-channelcountmode
enum ChannelCountMode {
"max",
"clamped-max",
"explicit"
};
// https://webaudio.github.io/web-audio-api/#enumdef-channelinterpretation
enum ChannelInterpretation {
"speakers",
"discrete"
};
// https://webaudio.github.io/web-audio-api/#AudioNodeOptions
dictionary AudioNodeOptions {
unsigned long channelCount;
ChannelCountMode channelCountMode;
ChannelInterpretation channelInterpretation;
};
// https://webaudio.github.io/web-audio-api/#AudioNode
[Exposed=Window]
interface AudioNode : EventTarget {
AudioNode connect(AudioNode destinationNode,
optional unsigned long output = 0,
optional unsigned long input = 0);
undefined connect(AudioParam destinationParam, optional unsigned long output = 0);
undefined disconnect();
undefined disconnect(unsigned long output);
undefined disconnect(AudioNode destinationNode);
undefined disconnect(AudioNode destinationNode, unsigned long output);
undefined disconnect(AudioNode destinationNode,
unsigned long output,
unsigned long input);
undefined disconnect(AudioParam destinationParam);
undefined disconnect(AudioParam destinationParam, unsigned long output);
// FIXME: readonly attribute BaseAudioContext context;
// FIXME: readonly attribute unsigned long numberOfInputs;
// FIXME: readonly attribute unsigned long numberOfOutputs;
// FIXME: attribute unsigned long channelCount;
// FIXME: attribute ChannelCountMode channelCountMode;
// FIXME: attribute ChannelInterpretation channelInterpretation;
};

1
Userland/Libraries/LibWeb/idl_files.cmake
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@ -295,6 +295,7 @@ libweb_js_bindings(WebAssembly/Table)
libweb_js_bindings(WebAssembly/WebAssembly NAMESPACE)
libweb_js_bindings(WebAudio/AudioBuffer)
libweb_js_bindings(WebAudio/AudioContext)
libweb_js_bindings(WebAudio/AudioNode)
libweb_js_bindings(WebAudio/AudioParam)
libweb_js_bindings(WebAudio/BaseAudioContext)
libweb_js_bindings(WebAudio/OfflineAudioContext)