Source/WebCore/Modules/speech/DOMWindowSpeechSynthesis.cpp

/*
 * Copyright (C) 2012 Google Inc. All rights reserved.
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 * modification, are permitted provided that the following conditions are
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 *
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 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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#include "config.h"
#include "DOMWindowSpeechSynthesis.h"

#if ENABLE(SPEECH_SYNTHESIS)

#include "DOMWindow.h"
#include "Page.h"

namespace WebCore {

DOMWindowSpeechSynthesis::DOMWindowSpeechSynthesis(DOMWindow* window)
    : DOMWindowProperty(window)
{
}

DOMWindowSpeechSynthesis::~DOMWindowSpeechSynthesis() = default;

const char* DOMWindowSpeechSynthesis::supplementName()
{
    return "DOMWindowSpeechSynthesis";
}

// static
DOMWindowSpeechSynthesis* DOMWindowSpeechSynthesis::from(DOMWindow* window)
{
    DOMWindowSpeechSynthesis* supplement = static_cast<DOMWindowSpeechSynthesis*>(Supplement<DOMWindow>::from(window, supplementName()));
    if (!supplement) {
        auto newSupplement = makeUnique<DOMWindowSpeechSynthesis>(window);
        supplement = newSupplement.get();
        provideTo(window, supplementName(), WTFMove(newSupplement));
    }
    return supplement;
}

// static
SpeechSynthesis* DOMWindowSpeechSynthesis::speechSynthesis(DOMWindow& window)
{
    return DOMWindowSpeechSynthesis::from(&window)->speechSynthesis();
}

SpeechSynthesis* DOMWindowSpeechSynthesis::speechSynthesis()
{
    if (!m_speechSynthesis && frame())
        m_speechSynthesis = SpeechSynthesis::create(makeWeakPtr(frame()->page()->speechSynthesisClient()));
    return m_speechSynthesis.get();
}

} // namespace WebCore

#endif // ENABLE(SPEECH_SYNTHESIS)