| /**************************************************************************** |
| ** |
| ** Copyright (C) 2017 The Qt Company Ltd. |
| ** Contact: http://www.qt.io/licensing/ |
| ** |
| ** This file is part of the Qt Quick Templates 2 module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:LGPL3$ |
| ** Commercial License Usage |
| ** Licensees holding valid commercial Qt licenses may use this file in |
| ** accordance with the commercial license agreement provided with the |
| ** Software or, alternatively, in accordance with the terms contained in |
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| ** information use the contact form at http://www.qt.io/contact-us. |
| ** |
| ** GNU Lesser General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU Lesser |
| ** General Public License version 3 as published by the Free Software |
| ** Foundation and appearing in the file LICENSE.LGPLv3 included in the |
| ** packaging of this file. Please review the following information to |
| ** ensure the GNU Lesser General Public License version 3 requirements |
| ** will be met: https://www.gnu.org/licenses/lgpl.html. |
| ** |
| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU |
| ** General Public License version 2.0 or later as published by the Free |
| ** Software Foundation and appearing in the file LICENSE.GPL included in |
| ** the packaging of this file. Please review the following information to |
| ** ensure the GNU General Public License version 2.0 requirements will be |
| ** met: http://www.gnu.org/licenses/gpl-2.0.html. |
| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| #include "qquickpresshandler_p_p.h" |
| |
| #include <QtCore/private/qobject_p.h> |
| #include <QtGui/qguiapplication.h> |
| #include <QtGui/qstylehints.h> |
| #include <QtQuick/qquickitem.h> |
| #include <QtQuick/private/qquickevents_p_p.h> |
| #include <QtQuickTemplates2/private/qquicktextarea_p.h> |
| #include <QtQuickTemplates2/private/qquicktextfield_p.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| void QQuickPressHandler::mousePressEvent(QMouseEvent *event) |
| { |
| longPress = false; |
| pressPos = event->localPos(); |
| if (Qt::LeftButton == (event->buttons() & Qt::LeftButton)) { |
| timer.start(QGuiApplication::styleHints()->mousePressAndHoldInterval(), control); |
| delayedMousePressEvent = new QMouseEvent(event->type(), event->pos(), event->button(), event->buttons(), event->modifiers()); |
| } else { |
| timer.stop(); |
| } |
| |
| if (isSignalConnected(control, "pressed(QQuickMouseEvent*)", pressedSignalIndex)) { |
| QQuickMouseEvent mev; |
| mev.reset(pressPos.x(), pressPos.y(), event->button(), event->buttons(), |
| QGuiApplication::keyboardModifiers(), false/*isClick*/, false/*wasHeld*/); |
| mev.setAccepted(true); |
| QQuickMouseEvent *mevPtr = &mev; |
| void *args[] = { nullptr, &mevPtr }; |
| QMetaObject::metacall(control, QMetaObject::InvokeMetaMethod, pressedSignalIndex, args); |
| event->setAccepted(mev.isAccepted()); |
| } |
| } |
| |
| void QQuickPressHandler::mouseMoveEvent(QMouseEvent *event) |
| { |
| if (qAbs(int(event->localPos().x() - pressPos.x())) > QGuiApplication::styleHints()->startDragDistance()) |
| timer.stop(); |
| } |
| |
| void QQuickPressHandler::mouseReleaseEvent(QMouseEvent *event) |
| { |
| if (!longPress) { |
| timer.stop(); |
| |
| if (isSignalConnected(control, "released(QQuickMouseEvent*)", releasedSignalIndex)) { |
| QQuickMouseEvent mev; |
| mev.reset(pressPos.x(), pressPos.y(), event->button(), event->buttons(), |
| QGuiApplication::keyboardModifiers(), false/*isClick*/, false/*wasHeld*/); |
| mev.setAccepted(true); |
| QQuickMouseEvent *mevPtr = &mev; |
| void *args[] = { nullptr, &mevPtr }; |
| QMetaObject::metacall(control, QMetaObject::InvokeMetaMethod, releasedSignalIndex, args); |
| event->setAccepted(mev.isAccepted()); |
| } |
| } |
| } |
| |
| void QQuickPressHandler::timerEvent(QTimerEvent *) |
| { |
| timer.stop(); |
| clearDelayedMouseEvent(); |
| |
| longPress = isSignalConnected(control, "pressAndHold(QQuickMouseEvent*)", pressAndHoldSignalIndex); |
| if (longPress) { |
| QQuickMouseEvent mev; |
| mev.reset(pressPos.x(), pressPos.y(), Qt::LeftButton, Qt::LeftButton, |
| QGuiApplication::keyboardModifiers(), false/*isClick*/, true/*wasHeld*/); |
| mev.setAccepted(true); |
| // Use fast signal invocation since we already got its index |
| QQuickMouseEvent *mevPtr = &mev; |
| void *args[] = { nullptr, &mevPtr }; |
| QMetaObject::metacall(control, QMetaObject::InvokeMetaMethod, pressAndHoldSignalIndex, args); |
| if (!mev.isAccepted()) |
| longPress = false; |
| } |
| } |
| |
| void QQuickPressHandler::clearDelayedMouseEvent() |
| { |
| if (delayedMousePressEvent) { |
| delete delayedMousePressEvent; |
| delayedMousePressEvent = 0; |
| } |
| } |
| |
| bool QQuickPressHandler::isActive() |
| { |
| return !(timer.isActive() || longPress); |
| } |
| |
| bool QQuickPressHandler::isSignalConnected(QQuickItem *item, const char *signalName, int &signalIndex) |
| { |
| if (signalIndex == -1) |
| signalIndex = item->metaObject()->indexOfSignal(signalName); |
| Q_ASSERT(signalIndex != -1); |
| const auto signalMetaMethod = item->metaObject()->method(signalIndex); |
| if (QQuickTextArea *textArea = qobject_cast<QQuickTextArea*>(item)) { |
| return textArea->isSignalConnected(signalMetaMethod); |
| } else if (QQuickTextField *textField = qobject_cast<QQuickTextField*>(item)) { |
| return textField->isSignalConnected(signalMetaMethod); |
| } |
| qFatal("Unhandled control type for signal name: %s", signalName); |
| return false; |
| } |
| |
| QT_END_NAMESPACE |