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5cb6d495bb
The spec doesn't tell us the exact value to use, but a minumum & maximum range of supported values. Just to be consistent with another browser, we follow the values that firefox appears to support from testing the interface on my machine. This function will be used in the AudioBuffer constructor, but is defined in the spec as part of BaseAudioContext.
57 lines
1.9 KiB
C++
57 lines
1.9 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/Intrinsics.h>
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#include <LibWeb/HTML/EventNames.h>
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#include <LibWeb/WebAudio/BaseAudioContext.h>
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namespace Web::WebAudio {
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BaseAudioContext::BaseAudioContext(JS::Realm& realm)
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: DOM::EventTarget(realm)
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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-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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