okular/part/tts.cpp
2021-06-10 08:11:56 +00:00

105 lines
2.3 KiB
C++

/*
SPDX-FileCopyrightText: 2008 Pino Toscano <pino@kde.org>
SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "tts.h"
#include <QDBusServiceWatcher>
#include <QSet>
#include <KLocalizedString>
#include "settings.h"
/* Private storage. */
class OkularTTS::Private
{
public:
Private(OkularTTS *qq)
: q(qq)
, speech(new QTextToSpeech(Okular::Settings::ttsEngine()))
{
}
~Private()
{
delete speech;
speech = nullptr;
}
OkularTTS *q;
QTextToSpeech *speech;
// Which speech engine was used when above object was created.
// When the setting changes, we need to stop speaking and recreate.
QString speechEngine;
};
OkularTTS::OkularTTS(QObject *parent)
: QObject(parent)
, d(new Private(this))
{
// Initialize speechEngine so we can reinitialize if it changes.
d->speechEngine = Okular::Settings::ttsEngine();
connect(d->speech, &QTextToSpeech::stateChanged, this, &OkularTTS::slotSpeechStateChanged);
connect(Okular::Settings::self(), &KConfigSkeleton::configChanged, this, &OkularTTS::slotConfigChanged);
}
OkularTTS::~OkularTTS()
{
delete d;
}
void OkularTTS::say(const QString &text)
{
if (text.isEmpty())
return;
d->speech->say(text);
}
void OkularTTS::stopAllSpeechs()
{
if (!d->speech)
return;
d->speech->stop();
}
void OkularTTS::pauseResumeSpeech()
{
if (!d->speech)
return;
if (d->speech->state() == QTextToSpeech::Speaking)
d->speech->pause();
else
d->speech->resume();
}
void OkularTTS::slotSpeechStateChanged(QTextToSpeech::State state)
{
if (state == QTextToSpeech::Speaking) {
emit isSpeaking(true);
emit canPauseOrResume(true);
} else {
emit isSpeaking(false);
if (state == QTextToSpeech::Paused)
emit canPauseOrResume(true);
else
emit canPauseOrResume(false);
}
}
void OkularTTS::slotConfigChanged()
{
const QString engine = Okular::Settings::ttsEngine();
if (engine != d->speechEngine) {
d->speech->stop();
delete d->speech;
d->speech = new QTextToSpeech(engine);
connect(d->speech, &QTextToSpeech::stateChanged, this, &OkularTTS::slotSpeechStateChanged);
d->speechEngine = engine;
}
}