223 lines
7.3 KiB
C++
223 lines
7.3 KiB
C++
#include "qxtglobalshortcut.h"
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/****************************************************************************
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** Copyright (c) 2006 - 2011, the LibQxt project.
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** See the Qxt AUTHORS file for a list of authors and copyright holders.
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** All rights reserved.
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**
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** Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions are met:
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** * Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** * Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in the
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** documentation and/or other materials provided with the distribution.
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** * Neither the name of the LibQxt project nor the
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** names of its contributors may be used to endorse or promote products
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** derived from this software without specific prior written permission.
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**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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** ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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** WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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** DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
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** DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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** (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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** LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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** ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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** SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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**
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** <http://libqxt.org> <foundation@libqxt.org>
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*****************************************************************************/
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#include <QtGlobal>
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#include <QAbstractEventDispatcher>
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#include <QHash>
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#include <QPair>
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#include <QtDebug>
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#include "qxtglobalshortcut_p.h"
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bool QxtGlobalShortcutPrivate::error = false;
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#ifndef Q_WS_MAC
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int QxtGlobalShortcutPrivate::ref = 0;
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#if QT_VERSION < QT_VERSION_CHECK(5,0,0)
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QAbstractEventDispatcher::EventFilter QxtGlobalShortcutPrivate::prevEventFilter = 0;
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#endif
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#endif // Q_WS_MAC
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QHash<QPair<quint32, quint32>, QxtGlobalShortcut*> QxtGlobalShortcutPrivate::shortcuts;
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QxtGlobalShortcutPrivate::QxtGlobalShortcutPrivate() : enabled(true), key(Qt::Key(0)), mods(Qt::NoModifier)
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{
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#ifndef Q_WS_MAC
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if (!ref++)
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#if QT_VERSION < QT_VERSION_CHECK(5,0,0)
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prevEventFilter = QAbstractEventDispatcher::instance()->setEventFilter(eventFilter);
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#else
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QAbstractEventDispatcher::instance()->installNativeEventFilter(this);
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#endif
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#endif // Q_WS_MAC
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}
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QxtGlobalShortcutPrivate::~QxtGlobalShortcutPrivate()
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{
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#ifndef Q_WS_MAC
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if (!--ref)
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#if QT_VERSION < QT_VERSION_CHECK(5,0,0)
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QAbstractEventDispatcher::instance()->setEventFilter(prevEventFilter);
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#else
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QAbstractEventDispatcher::instance()->removeNativeEventFilter(this);
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#endif
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#endif // Q_WS_MAC
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}
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bool QxtGlobalShortcutPrivate::setShortcut(const QKeySequence& shortcut)
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{
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Qt::KeyboardModifiers allMods = Qt::ShiftModifier | Qt::ControlModifier | Qt::AltModifier | Qt::MetaModifier;
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key = shortcut.isEmpty() ? Qt::Key(0) : Qt::Key((shortcut[0] ^ allMods) & shortcut[0]);
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mods = shortcut.isEmpty() ? Qt::KeyboardModifiers(0) : Qt::KeyboardModifiers(shortcut[0] & allMods);
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const quint32 nativeKey = nativeKeycode(key);
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const quint32 nativeMods = nativeModifiers(mods);
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const bool res = registerShortcut(nativeKey, nativeMods);
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if (res)
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shortcuts.insert(qMakePair(nativeKey, nativeMods), &qxt_p());
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else
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qWarning() << "QxtGlobalShortcut failed to register:" << QKeySequence(key + mods).toString();
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return res;
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}
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bool QxtGlobalShortcutPrivate::unsetShortcut()
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{
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bool res = false;
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const quint32 nativeKey = nativeKeycode(key);
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const quint32 nativeMods = nativeModifiers(mods);
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if (shortcuts.value(qMakePair(nativeKey, nativeMods)) == &qxt_p())
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res = unregisterShortcut(nativeKey, nativeMods);
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if (res)
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shortcuts.remove(qMakePair(nativeKey, nativeMods));
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else
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qWarning() << "QxtGlobalShortcut failed to unregister:" << QKeySequence(key + mods).toString();
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key = Qt::Key(0);
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mods = Qt::KeyboardModifiers(0);
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return res;
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}
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void QxtGlobalShortcutPrivate::activateShortcut(quint32 nativeKey, quint32 nativeMods)
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{
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QxtGlobalShortcut* shortcut = shortcuts.value(qMakePair(nativeKey, nativeMods));
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if (shortcut && shortcut->isEnabled())
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emit shortcut->activated();
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}
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/*!
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\class QxtGlobalShortcut
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\inmodule QxtWidgets
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\brief The QxtGlobalShortcut class provides a global shortcut aka "hotkey".
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A global shortcut triggers even if the application is not active. This
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makes it easy to implement applications that react to certain shortcuts
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still if some other application is active or if the application is for
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example minimized to the system tray.
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Example usage:
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\code
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QxtGlobalShortcut* shortcut = new QxtGlobalShortcut(window);
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connect(shortcut, SIGNAL(activated()), window, SLOT(toggleVisibility()));
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shortcut->setShortcut(QKeySequence("Ctrl+Shift+F12"));
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\endcode
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\bold {Note:} Since Qxt 0.6 QxtGlobalShortcut no more requires QxtApplication.
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*/
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/*!
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\fn QxtGlobalShortcut::activated()
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This signal is emitted when the user types the shortcut's key sequence.
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\sa shortcut
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*/
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/*!
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Constructs a new QxtGlobalShortcut with \a parent.
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*/
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QxtGlobalShortcut::QxtGlobalShortcut(QObject* parent)
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: QObject(parent)
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{
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QXT_INIT_PRIVATE(QxtGlobalShortcut);
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}
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/*!
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Constructs a new QxtGlobalShortcut with \a shortcut and \a parent.
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*/
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QxtGlobalShortcut::QxtGlobalShortcut(const QKeySequence& shortcut, QObject* parent)
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: QObject(parent)
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{
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QXT_INIT_PRIVATE(QxtGlobalShortcut);
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setShortcut(shortcut);
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}
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/*!
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Destructs the QxtGlobalShortcut.
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*/
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QxtGlobalShortcut::~QxtGlobalShortcut()
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{
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if (qxt_d().key != 0)
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qxt_d().unsetShortcut();
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}
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/*!
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\property QxtGlobalShortcut::shortcut
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\brief the shortcut key sequence
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\bold {Note:} Notice that corresponding key press and release events are not
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delivered for registered global shortcuts even if they are disabled.
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Also, comma separated key sequences are not supported.
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Only the first part is used:
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\code
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qxtShortcut->setShortcut(QKeySequence("Ctrl+Alt+A,Ctrl+Alt+B"));
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Q_ASSERT(qxtShortcut->shortcut() == QKeySequence("Ctrl+Alt+A"));
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\endcode
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*/
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QKeySequence QxtGlobalShortcut::shortcut() const
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{
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return QKeySequence(qxt_d().key | qxt_d().mods);
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}
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bool QxtGlobalShortcut::setShortcut(const QKeySequence& shortcut)
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{
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if (qxt_d().key != 0)
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qxt_d().unsetShortcut();
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return qxt_d().setShortcut(shortcut);
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}
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/*!
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\property QxtGlobalShortcut::enabled
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\brief whether the shortcut is enabled
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A disabled shortcut does not get activated.
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The default value is \c true.
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\sa setDisabled()
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*/
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bool QxtGlobalShortcut::isEnabled() const
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{
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return qxt_d().enabled;
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}
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void QxtGlobalShortcut::setEnabled(bool enabled)
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{
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qxt_d().enabled = enabled;
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}
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/*!
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Sets the shortcut \a disabled.
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\sa enabled
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*/
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void QxtGlobalShortcut::setDisabled(bool disabled)
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{
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qxt_d().enabled = !disabled;
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}
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