ladybird/Libraries/LibWeb/WebAudio/AudioDestinationNode.cpp
Shannon Booth f87041bf3a LibGC+Everywhere: Factor out a LibGC from LibJS
Resulting in a massive rename across almost everywhere! Alongside the
namespace change, we now have the following names:

 * JS::NonnullGCPtr -> GC::Ref
 * JS::GCPtr -> GC::Ptr
 * JS::HeapFunction -> GC::Function
 * JS::CellImpl -> GC::Cell
 * JS::Handle -> GC::Root
2024-11-15 14:49:20 +01:00

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2.5 KiB
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/*
* Copyright (c) 2024, Shannon Booth <shannon@serenityos.org>
* Copyright (c) 2024, Bar Yemini <bar.ye651@gmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibWeb/Bindings/AudioDestinationNodePrototype.h>
#include <LibWeb/Bindings/Intrinsics.h>
#include <LibWeb/WebAudio/AudioContext.h>
#include <LibWeb/WebAudio/AudioDestinationNode.h>
#include <LibWeb/WebAudio/AudioNode.h>
#include <LibWeb/WebAudio/BaseAudioContext.h>
#include <LibWeb/WebAudio/OfflineAudioContext.h>
namespace Web::WebAudio {
GC_DEFINE_ALLOCATOR(AudioDestinationNode);
AudioDestinationNode::AudioDestinationNode(JS::Realm& realm, GC::Ref<BaseAudioContext> context)
: AudioNode(realm, context)
{
}
AudioDestinationNode::~AudioDestinationNode() = default;
// https://webaudio.github.io/web-audio-api/#dom-audiodestinationnode-maxchannelcount
WebIDL::UnsignedLong AudioDestinationNode::max_channel_count()
{
dbgln("FIXME: Implement Audio::DestinationNode::max_channel_count()");
return 2;
}
GC::Ref<AudioDestinationNode> AudioDestinationNode::construct_impl(JS::Realm& realm, GC::Ref<BaseAudioContext> context)
{
return realm.create<AudioDestinationNode>(realm, context);
}
void AudioDestinationNode::initialize(JS::Realm& realm)
{
Base::initialize(realm);
WEB_SET_PROTOTYPE_FOR_INTERFACE(AudioDestinationNode);
}
void AudioDestinationNode::visit_edges(Cell::Visitor& visitor)
{
Base::visit_edges(visitor);
}
// https://webaudio.github.io/web-audio-api/#dom-audionode-channelcount
WebIDL::ExceptionOr<void> AudioDestinationNode::set_channel_count(WebIDL::UnsignedLong channel_count)
{
// The behavior depends on whether the destination node is the destination of an AudioContext
// or OfflineAudioContext:
// AudioContext: The channel count MUST be between 1 and maxChannelCount. An IndexSizeError
// exception MUST be thrown for any attempt to set the count outside this range.
if (is<AudioContext>(*context())) {
if (channel_count < 1 || channel_count > max_channel_count())
return WebIDL::IndexSizeError::create(realm(), "Channel index is out of range"_string);
}
// OfflineAudioContext: The channel count cannot be changed. An InvalidStateError exception MUST
// be thrown for any attempt to change the value.
if (is<OfflineAudioContext>(*context()))
return WebIDL::InvalidStateError::create(realm(), "Cannot change channel count in an OfflineAudioContext"_string);
return AudioNode::set_channel_count(channel_count);
}
}