refactor:move modifiers code at its own class
Michail Vourlakos
6 years ago
parent
f2f8f0eb8b
commit
608275cc6b
@ -0,0 +1,131 @@
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/*
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* Copyright 2019 Michail Vourlakos <mvourlakos@gmail.com>
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*
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* This file is part of Latte-Dock
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*
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* Latte-Dock is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* Latte-Dock is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "modifiertracker.h"
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#include <QKeySequence>
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namespace Latte {
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namespace ShortcutsPart {
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ModifierTracker::ModifierTracker(QObject *parent)
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: QObject(parent)
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{
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init();
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}
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ModifierTracker::~ModifierTracker()
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{
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}
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void ModifierTracker::init()
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{
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m_metaPressedTimer.setInterval(700);
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m_pressed[Qt::Key_Super_L] = false;
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m_pressed[Qt::Key_Control] = false;
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m_pressed[Qt::Key_Alt] = false;
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m_pressed[Qt::Key_Shift] = false;
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connect(&m_metaPressedTimer, &QTimer::timeout, this, &ModifierTracker::metaModifierPressed);
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connect(&m_modifierKeyInfo, &KModifierKeyInfo::keyPressed, this, [&](Qt::Key key, bool state) {
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Qt::Key nKey = normalizeKey(key);
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//! ignore modifiers that we do not take into account
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if (!modifierIsTracked(nKey)) {
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return;
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}
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m_pressed[nKey] = state;
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if (nKey == Qt::Key_Super_L) {
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bool singleKey{singleModifierPressed(Qt::Key_Super_L)};
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if (state && singleKey) {
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m_metaPressedTimer.start();
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} else if (!state || !singleKey) {
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cancelMetaPressed();
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}
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} else {
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cancelMetaPressed();
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}
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emit modifiersChanged();
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});
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}
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bool ModifierTracker::modifierIsTracked(Qt::Key key)
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{
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return(key == Qt::Key_Super_L || key == Qt::Key_Super_R || key == Qt::Key_Control || key == Qt::Key_Alt || key == Qt::Key_Shift);
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}
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bool ModifierTracker::noModifierPressed()
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{
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foreach(Qt::Key modifier, m_pressed.keys()) {
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if ( m_pressed[modifier]) {
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return false;
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}
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}
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return true;
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}
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bool ModifierTracker::sequenceModifierPressed(const QKeySequence &seq)
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{
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if (seq.isEmpty()) {
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return false;
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}
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int mod = seq[seq.count() - 1] & Qt::KeyboardModifierMask;
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if ( ((mod & Qt::SHIFT) && m_pressed[Qt::Key_Shift])
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|| ((mod & Qt::CTRL) && m_pressed[Qt::Key_Control])
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|| ((mod & Qt::ALT) && m_pressed[Qt::Key_Alt])
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|| ((mod & Qt::META) && m_pressed[Qt::Key_Super_L])) {
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return true;
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}
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return false;
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}
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bool ModifierTracker::singleModifierPressed(Qt::Key key)
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{
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foreach(Qt::Key modifier, m_pressed.keys()) {
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if ( (modifier != key && m_pressed[modifier])
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|| (modifier == key && !m_pressed[modifier]) ) {
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return false;
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}
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}
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return true;
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}
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Qt::Key ModifierTracker::normalizeKey(Qt::Key key)
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{
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return key == Qt::Key_Super_L || key == key == Qt::Key_Super_R ? Qt::Key_Super_L : key;
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}
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void ModifierTracker::cancelMetaPressed()
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{
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m_metaPressedTimer.stop();
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}
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}
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}
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@ -0,0 +1,78 @@
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/*
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* Copyright 2019 Michail Vourlakos <mvourlakos@gmail.com>
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*
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* This file is part of Latte-Dock
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*
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* Latte-Dock is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* Latte-Dock is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef MODIFIERTRACKER_H
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#define MODIFIERTRACKER_H
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// Qt
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#include <QHash>
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#include <QObject>
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#include <QTimer>
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// KDE
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#include <KModifierKeyInfo>
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namespace Latte {
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namespace ShortcutsPart {
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class ModifierTracker: public QObject {
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Q_OBJECT
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public:
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ModifierTracker(QObject *parent);
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~ModifierTracker() override;
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//! cancel meta is pressed delayer
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void cancelMetaPressed();
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//! none of tracked modifiers is pressed
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bool noModifierPressed();
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//! at least one of the modifiers from KeySequence is pressed
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bool sequenceModifierPressed(const QKeySequence &seq);
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//! only <key> is pressed and no other modifier
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bool singleModifierPressed(Qt::Key key);
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signals:
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void metaModifierPressed();
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void modifiersChanged();
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private:
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void init();
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//! <key> modifier is tracked for changes
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bool modifierIsTracked(Qt::Key key);
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//! adjust key in more general values, e.g. Super_L and Super_R both return Super_L
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Qt::Key normalizeKey(Qt::Key key);
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private:
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KModifierKeyInfo m_modifierKeyInfo;
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QTimer m_metaPressedTimer;
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//! keep a record for modifiers
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QHash<Qt::Key, bool> m_pressed;
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};
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}
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}
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#endif
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