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76 lines
2.7 KiB
C++
76 lines
2.7 KiB
C++
/*
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* Copyright (c) 2023, Luke Wilde <lukew@serenityos.org>
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* Copyright (c) 2024, Shannon Booth <shannon@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibWeb/Bindings/BaseAudioContextPrototype.h>
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#include <LibWeb/Bindings/Intrinsics.h>
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#include <LibWeb/HTML/EventNames.h>
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#include <LibWeb/WebAudio/BaseAudioContext.h>
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#include <LibWeb/WebAudio/DynamicsCompressorNode.h>
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#include <LibWeb/WebAudio/OscillatorNode.h>
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namespace Web::WebAudio {
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BaseAudioContext::BaseAudioContext(JS::Realm& realm, float sample_rate)
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: DOM::EventTarget(realm)
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, m_sample_rate(sample_rate)
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{
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}
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BaseAudioContext::~BaseAudioContext() = default;
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void BaseAudioContext::initialize(JS::Realm& realm)
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{
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Base::initialize(realm);
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WEB_SET_PROTOTYPE_FOR_INTERFACE(BaseAudioContext);
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}
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void BaseAudioContext::set_onstatechange(WebIDL::CallbackType* event_handler)
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{
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set_event_handler_attribute(HTML::EventNames::statechange, event_handler);
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}
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WebIDL::CallbackType* BaseAudioContext::onstatechange()
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{
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return event_handler_attribute(HTML::EventNames::statechange);
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}
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// https://webaudio.github.io/web-audio-api/#dom-baseaudiocontext-createoscillator
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WebIDL::ExceptionOr<JS::NonnullGCPtr<OscillatorNode>> BaseAudioContext::create_oscillator()
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{
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// Factory method for an OscillatorNode.
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return OscillatorNode::create(realm(), *this);
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}
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// https://webaudio.github.io/web-audio-api/#dom-baseaudiocontext-createdynamicscompressor
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WebIDL::ExceptionOr<JS::NonnullGCPtr<DynamicsCompressorNode>> BaseAudioContext::create_dynamics_compressor()
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{
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// Factory method for a DynamicsCompressorNode.
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return DynamicsCompressorNode::create(realm(), *this);
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}
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// https://webaudio.github.io/web-audio-api/#dom-baseaudiocontext-createbuffer
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WebIDL::ExceptionOr<void> BaseAudioContext::verify_audio_options_inside_nominal_range(JS::Realm& realm, WebIDL::UnsignedLong number_of_channels, WebIDL::UnsignedLong length, float sample_rate)
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{
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// A NotSupportedError exception MUST be thrown if any of the arguments is negative, zero, or outside its nominal range.
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if (number_of_channels == 0)
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return WebIDL::NotSupportedError::create(realm, "Number of channels must not be '0'"_fly_string);
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if (number_of_channels > MAX_NUMBER_OF_CHANNELS)
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return WebIDL::NotSupportedError::create(realm, "Number of channels is greater than allowed range"_fly_string);
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if (length == 0)
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return WebIDL::NotSupportedError::create(realm, "Length of buffer must be at least 1"_fly_string);
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if (sample_rate < MIN_SAMPLE_RATE || sample_rate > MAX_SAMPLE_RATE)
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return WebIDL::NotSupportedError::create(realm, "Sample rate is outside of allowed range"_fly_string);
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return {};
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}
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}
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