添加触摸相关的patch
This commit is contained in:
韩品龙
parent
94a17c302c
commit
7fd2ef7c6a
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@ -47,12 +47,14 @@
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#include "qgraphicssceneevent.h"
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#include "qgraphicsview.h"
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#endif
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#include "qstylehints.h"
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#include "qscroller.h"
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#include <QtGui/qtouchdevice.h>
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#include "private/qapplication_p.h"
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#include "private/qevent_p.h"
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#include "private/qflickgesture_p.h"
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#include "qdebug.h"
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#include "qtimer.h"
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#ifndef QT_NO_GESTURES
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@ -68,13 +70,258 @@ QT_BEGIN_NAMESPACE
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extern bool qt_sendSpontaneousEvent(QObject *receiver, QEvent *event);
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static QMouseEvent *copyMouseEvent(QEvent *e)
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QTimer* PressDelayHandler::m_pressDelayTimer;
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bool PressDelayHandler::m_sendingEvent = false;
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QScopedPointer<QEvent> PressDelayHandler::m_pressDelayEvent;
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QPointer<QObject> PressDelayHandler::m_pressTarget;
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PressDelayHandler::PressDelayHandler(QObject *parent)
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: QObject(parent)
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{ }
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PressDelayHandler* PressDelayHandler::create(Qt::MouseButton button)
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{
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switch (button) {
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case Qt::LeftButton:
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return new MousePressDelayHandler(QCoreApplication::instance());
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break;
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case Qt::NoButton:
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return new TouchPressDelayHandler(QCoreApplication::instance());
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default:
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break;
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}
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return new MousePressDelayHandler(QCoreApplication::instance());
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}
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bool PressDelayHandler::shouldEventBeIgnored() const
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{
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return m_sendingEvent;
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}
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bool PressDelayHandler::isDelaying() const
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{
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return hasSavedDelayEvent();
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}
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void PressDelayHandler::pressed(QEvent *e, int delay)
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{
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if (!hasSavedDelayEvent()) {
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qFGDebug("QFG: consuming/delaying press");
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m_pressDelayEvent.reset(copyEvent(e));
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saveDelayEventInfo(e);
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startTimer(delay);
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} else {
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qFGDebug("QFG: NOT consuming/delaying press");
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}
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}
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bool PressDelayHandler::released(QEvent *e, bool scrollerWasActive, bool scrollerIsActive)
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{
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// stop the timer
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stopTimer();
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bool result = scrollerWasActive || scrollerIsActive;
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// we still haven't even sent the press, so do it now
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if (hasSavedDelayEvent() && pressTarget() && !scrollerIsActive) {
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qFGDebug() << "QFG: re-sending press (due to release) for " << pressTarget();
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sendSpontaneousEvent(m_pressDelayEvent.data(), pressTarget(), UngrabMouseBefore);
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qFGDebug() << "QFG: faking release (due to release) for " << pressTarget();
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sendSpontaneousEvent(e, pressTarget(), 0);
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result = true; // consume this event
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} else if (pressTarget() && scrollerIsActive) {
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// we grabbed the mouse expicitly when the scroller became active, so undo that now
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qFGDebug() << "QFG: ungrab mouse which grabbed when the scroller became active";
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sendSpontaneousEvent(nullptr, pressTarget(), UngrabMouseBefore);
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}
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resetDelayEvent();
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resetPressTarget();
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return result;
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}
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void PressDelayHandler::scrollerWasIntercepted()
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{
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qFGDebug("QFG: deleting delayed press, since scroller was only intercepted");
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if (hasSavedDelayEvent()) {
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// we still haven't even sent the press, so just throw it away now
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stopTimer();
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}
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resetPressTarget();
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}
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void PressDelayHandler::scrollerBecameActive()
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{
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if (hasSavedDelayEvent()) {
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// we still haven't even sent the press, so just throw it away now
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qFGDebug("QFG: deleting delayed mouse press, since scroller is active now");
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stopTimer();
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resetDelayEvent();
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resetPressTarget();
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} else if (pressTarget()) {
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// we did send a press, so we need to fake a release now
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releaseAllPressed();
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// don't clear the pressTarget just yet, since we need to explicitly ungrab the mouse on release!
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}
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}
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void PressDelayHandler::onDelayTimeout()
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{
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if (hasSavedDelayEvent() && pressTarget()) {
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qFGDebug() << "QFG: timer event: re-sending press to " << pressTarget();
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sendSpontaneousEvent(m_pressDelayEvent.data(), pressTarget(), UngrabMouseBefore);
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}
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resetDelayEvent();
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stopTimer();
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}
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void PressDelayHandler::stopTimer()
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{
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if (!m_pressDelayTimer)
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return;
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if (!m_pressDelayTimer->isActive())
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return;
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m_pressDelayTimer->stop();
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}
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void PressDelayHandler::startTimer(int timeout)
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{
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if (!m_pressDelayTimer)
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m_pressDelayTimer = new QTimer;
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if (m_pressDelayTimer->isActive()) {
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qFGDebug() << "QFG: timer is active, don't start again";
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return;
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}
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m_pressDelayTimer->singleShot(timeout, this, &PressDelayHandler::onDelayTimeout);
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}
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void PressDelayHandler::sendSpontaneousEvent(QEvent *e, QObject *target, int flags)
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{
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#if QT_CONFIG(graphicsview)
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if (flags & UngrabMouseBefore)
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ungrabMouse(mouseGrabberItem());
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#else
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Q_UNUSED(flags);
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#endif
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m_sendingEvent = true;
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sendEvent(e, target);
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m_sendingEvent = false;
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#if QT_CONFIG(graphicsview)
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if (flags & RegrabMouseAfterwards)
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grabMouse(mouseGrabberItem());
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#endif
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}
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QPointer<QObject> PressDelayHandler::pressTarget() const
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{
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return m_pressTarget;
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}
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void PressDelayHandler::setPressTarget(QObject* pressTarget)
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{
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m_pressTarget = pressTarget;
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}
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void PressDelayHandler::resetPressTarget()
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{
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m_pressTarget = nullptr;
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}
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bool PressDelayHandler::hasSavedDelayEvent() const
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{
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return !m_pressDelayEvent.isNull();
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}
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void PressDelayHandler::resetDelayEvent()
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{
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m_pressDelayEvent.reset(nullptr);
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}
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QGraphicsItem* PressDelayHandler::mouseGrabberItem() const
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{
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QGraphicsItem *grabber = nullptr;
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QWidget* targetWidget = nullptr;
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if (pressTarget().data()->isWidgetType()) {
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targetWidget = dynamic_cast<QWidget*>(pressTarget().data());
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}
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else {
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targetWidget = QApplication::widgetAt(QCursor::pos());
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}
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if (!targetWidget)
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return nullptr;
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if (targetWidget->parentWidget()) {
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if (QGraphicsView *gv = qobject_cast<QGraphicsView *>(targetWidget->parentWidget())) {
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if (gv->scene())
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grabber = gv->scene()->mouseGrabberItem();
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}
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}
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return grabber;
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}
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void PressDelayHandler::grabMouse(QGraphicsItem* grabber) const
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{
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if (!grabber)
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return;
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// GraphicsView Mouse Handling Workaround #2:
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// we need to re-grab the mouse after sending a faked mouse
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// release, since we still need the mouse moves for the gesture
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// (the scene will clear the item's mouse grabber status on
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// release).
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qFGDebug() << "QFG: re-grabbing" << grabber;
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grabber->grabMouse();
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}
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void PressDelayHandler::ungrabMouse(QGraphicsItem* grabber) const
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{
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if (!grabber)
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return;
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// GraphicsView Mouse Handling Workaround #1:
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// we need to ungrab the mouse before re-sending the press,
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// since the scene had already set the mouse grabber to the
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// original (and consumed) event's receiver
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qFGDebug() << "QFG: ungrabbing" << grabber;
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grabber->ungrabMouse();
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}
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MousePressDelayHandler::MousePressDelayHandler(QObject *parent)
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: PressDelayHandler(parent)
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, m_mouseButton(Qt::NoButton)
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, m_mouseEventSource(Qt::MouseEventNotSynthesized)
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{
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qFGDebug("QFG: create MousePressDelayHandler");
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}
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void MousePressDelayHandler::saveDelayEventInfo(QEvent* e)
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{
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QMouseEvent* me = dynamic_cast<QMouseEvent*>(e);
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if (!me) {
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qWarning() << "MousePressDelayHandler handling event not QMouseEvent";
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return;
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}
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setPressTarget(QApplication::widgetAt(me->globalPos()));
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m_mouseButton = me->button();
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m_mouseEventSource = me->source();
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}
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QEvent* MousePressDelayHandler::copyEvent(QEvent *e)
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{
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switch (e->type()) {
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case QEvent::MouseButtonPress:
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case QEvent::MouseButtonRelease:
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case QEvent::MouseMove: {
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QMouseEvent *me = static_cast<QMouseEvent *>(e);
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QMouseEvent *me = dynamic_cast<QMouseEvent *>(e);
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QMouseEvent *cme = new QMouseEvent(me->type(), QPoint(0, 0), me->windowPos(), me->screenPos(),
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me->button(), me->buttons(), me->modifiers(), me->source());
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return cme;
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@ -83,7 +330,7 @@ static QMouseEvent *copyMouseEvent(QEvent *e)
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case QEvent::GraphicsSceneMousePress:
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case QEvent::GraphicsSceneMouseRelease:
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case QEvent::GraphicsSceneMouseMove: {
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QGraphicsSceneMouseEvent *me = static_cast<QGraphicsSceneMouseEvent *>(e);
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QGraphicsSceneMouseEvent *me = dynamic_cast<QGraphicsSceneMouseEvent *>(e);
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#if 1
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QEvent::Type met = me->type() == QEvent::GraphicsSceneMousePress ? QEvent::MouseButtonPress :
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(me->type() == QEvent::GraphicsSceneMouseRelease ? QEvent::MouseButtonRelease : QEvent::MouseMove);
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@ -118,216 +365,193 @@ static QMouseEvent *copyMouseEvent(QEvent *e)
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}
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}
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class PressDelayHandler : public QObject
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void MousePressDelayHandler::sendEvent(QEvent *e, QObject* target)
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{
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private:
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PressDelayHandler(QObject *parent = nullptr)
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: QObject(parent)
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, pressDelayTimer(0)
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, sendingEvent(false)
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, mouseButton(Qt::NoButton)
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, mouseTarget(nullptr)
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, mouseEventSource(Qt::MouseEventNotSynthesized)
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{ }
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QMouseEvent* me = dynamic_cast<QMouseEvent*>(e);
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QWidget* targetWidget = dynamic_cast<QWidget*>(target);
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public:
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enum {
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UngrabMouseBefore = 1,
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RegrabMouseAfterwards = 2
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};
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static PressDelayHandler *instance()
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{
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static PressDelayHandler *inst = nullptr;
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if (!inst)
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inst = new PressDelayHandler(QCoreApplication::instance());
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return inst;
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if (!targetWidget) {
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return;
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}
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bool shouldEventBeIgnored(QEvent *) const
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{
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return sendingEvent;
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}
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bool isDelaying() const
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{
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return !pressDelayEvent.isNull();
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}
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void pressed(QEvent *e, int delay)
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{
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if (!pressDelayEvent) {
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pressDelayEvent.reset(copyMouseEvent(e));
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pressDelayTimer = startTimer(delay);
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mouseTarget = QApplication::widgetAt(pressDelayEvent->globalPos());
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mouseButton = pressDelayEvent->button();
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mouseEventSource = pressDelayEvent->source();
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qFGDebug("QFG: consuming/delaying mouse press");
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} else {
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qFGDebug("QFG: NOT consuming/delaying mouse press");
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}
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e->setAccepted(true);
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}
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bool released(QEvent *e, bool scrollerWasActive, bool scrollerIsActive)
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{
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// consume this event if the scroller was or is active
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bool result = scrollerWasActive || scrollerIsActive;
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// stop the timer
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if (pressDelayTimer) {
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killTimer(pressDelayTimer);
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pressDelayTimer = 0;
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}
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// we still haven't even sent the press, so do it now
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if (pressDelayEvent && mouseTarget && !scrollerIsActive) {
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QScopedPointer<QMouseEvent> releaseEvent(copyMouseEvent(e));
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qFGDebug() << "QFG: re-sending mouse press (due to release) for " << mouseTarget;
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sendMouseEvent(pressDelayEvent.data(), UngrabMouseBefore);
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qFGDebug() << "QFG: faking mouse release (due to release) for " << mouseTarget;
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sendMouseEvent(releaseEvent.data());
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result = true; // consume this event
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} else if (mouseTarget && scrollerIsActive) {
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// we grabbed the mouse expicitly when the scroller became active, so undo that now
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sendMouseEvent(nullptr, UngrabMouseBefore);
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}
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pressDelayEvent.reset(nullptr);
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mouseTarget = nullptr;
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return result;
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}
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void scrollerWasIntercepted()
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{
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qFGDebug("QFG: deleting delayed mouse press, since scroller was only intercepted");
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if (pressDelayEvent) {
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// we still haven't even sent the press, so just throw it away now
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if (pressDelayTimer) {
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killTimer(pressDelayTimer);
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pressDelayTimer = 0;
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}
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pressDelayEvent.reset(nullptr);
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}
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mouseTarget = nullptr;
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}
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void scrollerBecameActive()
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{
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if (pressDelayEvent) {
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// we still haven't even sent the press, so just throw it away now
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qFGDebug("QFG: deleting delayed mouse press, since scroller is active now");
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if (pressDelayTimer) {
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killTimer(pressDelayTimer);
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pressDelayTimer = 0;
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}
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pressDelayEvent.reset(nullptr);
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mouseTarget = nullptr;
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} else if (mouseTarget) {
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// we did send a press, so we need to fake a release now
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// release all pressed mouse buttons
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/* Qt::MouseButtons mouseButtons = QGuiApplication::mouseButtons();
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for (int i = 0; i < 32; ++i) {
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if (mouseButtons & (1 << i)) {
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Qt::MouseButton b = static_cast<Qt::MouseButton>(1 << i);
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mouseButtons &= ~b;
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QPoint farFarAway(-QWIDGETSIZE_MAX, -QWIDGETSIZE_MAX);
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qFGDebug() << "QFG: sending a fake mouse release at far-far-away to " << mouseTarget;
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QMouseEvent re(QEvent::MouseButtonRelease, QPoint(), farFarAway,
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b, mouseButtons, QGuiApplication::keyboardModifiers());
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sendMouseEvent(&re);
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}
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}*/
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QPoint farFarAway(-QWIDGETSIZE_MAX, -QWIDGETSIZE_MAX);
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qFGDebug() << "QFG: sending a fake mouse release at far-far-away to " << mouseTarget;
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QMouseEvent re(QEvent::MouseButtonRelease, QPoint(), farFarAway, farFarAway,
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mouseButton, QGuiApplication::mouseButtons() & ~mouseButton,
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QGuiApplication::keyboardModifiers(), mouseEventSource);
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sendMouseEvent(&re, RegrabMouseAfterwards);
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// don't clear the mouseTarget just yet, since we need to explicitly ungrab the mouse on release!
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}
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}
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protected:
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void timerEvent(QTimerEvent *e) override
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{
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if (e->timerId() == pressDelayTimer) {
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if (pressDelayEvent && mouseTarget) {
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qFGDebug() << "QFG: timer event: re-sending mouse press to " << mouseTarget;
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sendMouseEvent(pressDelayEvent.data(), UngrabMouseBefore);
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}
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pressDelayEvent.reset(nullptr);
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if (pressDelayTimer) {
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killTimer(pressDelayTimer);
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pressDelayTimer = 0;
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}
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}
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}
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void sendMouseEvent(QMouseEvent *me, int flags = 0)
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{
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if (mouseTarget) {
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sendingEvent = true;
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#if QT_CONFIG(graphicsview)
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QGraphicsItem *grabber = nullptr;
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if (mouseTarget->parentWidget()) {
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if (QGraphicsView *gv = qobject_cast<QGraphicsView *>(mouseTarget->parentWidget())) {
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if (gv->scene())
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grabber = gv->scene()->mouseGrabberItem();
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}
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}
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if (grabber && (flags & UngrabMouseBefore)) {
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// GraphicsView Mouse Handling Workaround #1:
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// we need to ungrab the mouse before re-sending the press,
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// since the scene had already set the mouse grabber to the
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// original (and consumed) event's receiver
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qFGDebug() << "QFG: ungrabbing" << grabber;
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grabber->ungrabMouse();
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}
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#else
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Q_UNUSED(flags);
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#endif // QT_CONFIG(graphicsview)
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if (me) {
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QMouseEvent copy(me->type(), mouseTarget->mapFromGlobal(me->globalPos()),
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mouseTarget->topLevelWidget()->mapFromGlobal(me->globalPos()), me->screenPos(),
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QMouseEvent copy(me->type(), targetWidget->mapFromGlobal(me->globalPos()),
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targetWidget->topLevelWidget()->mapFromGlobal(me->globalPos()), me->screenPos(),
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me->button(), me->buttons(), me->modifiers(), me->source());
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qt_sendSpontaneousEvent(mouseTarget, ©);
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qt_sendSpontaneousEvent(targetWidget, ©);
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}
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}
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void MousePressDelayHandler::releaseAllPressed()
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{
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QPoint farFarAway(-QWIDGETSIZE_MAX, -QWIDGETSIZE_MAX);
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qFGDebug() << "QFG: sending a fake mouse release at far-far-away to " << pressTarget();
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QMouseEvent re(QEvent::MouseButtonRelease, QPoint(), farFarAway, farFarAway,
|
||||
m_mouseButton, QApplication::mouseButtons() & ~m_mouseButton,
|
||||
QApplication::keyboardModifiers(), m_mouseEventSource);
|
||||
sendSpontaneousEvent(&re, pressTarget(), RegrabMouseAfterwards);
|
||||
}
|
||||
|
||||
TouchPressDelayHandler::TouchPressDelayHandler(QObject *parent)
|
||||
: PressDelayHandler(parent)
|
||||
{
|
||||
qFGDebug("QFG: create TouchPressDelayHandler");
|
||||
}
|
||||
|
||||
void TouchPressDelayHandler::saveDelayEventInfo(QEvent* e)
|
||||
{
|
||||
QTouchEvent* te = dynamic_cast<QTouchEvent*>(e);
|
||||
if (!te) {
|
||||
qWarning() << "TouchPressDelayHandler handling event not QTouchEvent";
|
||||
}
|
||||
setPressTarget(te->window());
|
||||
m_touchBeginPoint = te->touchPoints().at(0);
|
||||
m_device = te->device();
|
||||
}
|
||||
|
||||
void TouchPressDelayHandler::releaseAllPressed()
|
||||
{
|
||||
qFGDebug() << "QFG: sending a fake touch cancel to " << pressTarget();
|
||||
QTouchEvent te(QEvent::TouchCancel, m_device, QApplication::keyboardModifiers(),
|
||||
Qt::TouchPointReleased, QList<QTouchEvent::TouchPoint>{m_touchBeginPoint});
|
||||
te.setWindow(dynamic_cast<QWindow*>(pressTarget().data()));
|
||||
sendSpontaneousEvent(&te, pressTarget(), 0);
|
||||
}
|
||||
|
||||
void TouchPressDelayHandler::sendEvent(QEvent *e, QObject* target)
|
||||
{
|
||||
QTouchEvent* te = dynamic_cast<QTouchEvent*>(e);
|
||||
QWindow* targetWindow = dynamic_cast<QWindow*>(target);
|
||||
|
||||
if (!targetWindow) {
|
||||
return;
|
||||
}
|
||||
if (!te) {
|
||||
return;
|
||||
}
|
||||
|
||||
#if QT_CONFIG(graphicsview)
|
||||
if (grabber && (flags & RegrabMouseAfterwards)) {
|
||||
// GraphicsView Mouse Handling Workaround #2:
|
||||
// we need to re-grab the mouse after sending a faked mouse
|
||||
// release, since we still need the mouse moves for the gesture
|
||||
// (the scene will clear the item's mouse grabber status on
|
||||
// release).
|
||||
qFGDebug() << "QFG: re-grabbing" << grabber;
|
||||
grabber->grabMouse();
|
||||
}
|
||||
#endif
|
||||
sendingEvent = false;
|
||||
// map to window pos for send to window
|
||||
QTouchEvent::TouchPoint touchPoint = (!te->touchPoints().empty()) ? te->touchPoints().at(0) : QTouchEvent::TouchPoint();
|
||||
const QPointF screenPos = touchPoint.screenPos();
|
||||
const QPointF delta = screenPos - screenPos.toPoint();
|
||||
const QPointF windowPos = targetWindow->mapFromGlobal(screenPos.toPoint()) + delta;
|
||||
const QPointF startPos = targetWindow->mapFromGlobal(touchPoint.startScreenPos().toPoint()) + delta;
|
||||
const QPointF lastPos = targetWindow->mapFromGlobal(touchPoint.lastScreenPos().toPoint()) + delta;
|
||||
|
||||
touchPoint.setPos(windowPos);
|
||||
touchPoint.setStartPos(startPos);
|
||||
touchPoint.setLastPos(lastPos);
|
||||
|
||||
qFGDebug() << "QFG: sending" << te->type() << "event to" << targetWindow;
|
||||
// send touch event to window because there is a grab mechanism for touch events
|
||||
QTouchEvent copy(te->type(), te->device(), te->modifiers(),
|
||||
te->touchPointStates(), QList<QTouchEvent::TouchPoint>{touchPoint});
|
||||
copy.setWindow(targetWindow);
|
||||
qt_sendSpontaneousEvent(targetWindow, ©);
|
||||
|
||||
// when Qt::AA_SynthesizeMouseForUnhandledTouchEvents is set,
|
||||
// Qt will send a fake mouse eventif touch event not accept.
|
||||
// The touch event we send here will not send the fake mouse event,
|
||||
// so send it here.
|
||||
if ((qApp->testAttribute(Qt::AA_SynthesizeMouseForUnhandledTouchEvents) && !copy.isAccepted())
|
||||
|| copy.type() == QEvent::TouchCancel) {
|
||||
sendMouseEventFromTouch(©, targetWindow);
|
||||
}
|
||||
}
|
||||
|
||||
void TouchPressDelayHandler::sendMouseEventFromTouch(QTouchEvent *te, QWindow *target)
|
||||
{
|
||||
if (te->type() == QEvent::TouchCancel) {
|
||||
QPoint farFarAway(-QWIDGETSIZE_MAX, -QWIDGETSIZE_MAX);
|
||||
|
||||
qFGDebug() << "QFG: sending a fake mouse release at far-far-away to " << pressTarget();
|
||||
QMouseEvent fake(QEvent::MouseButtonRelease, QPoint(), farFarAway, farFarAway,
|
||||
Qt::LeftButton, QApplication::mouseButtons() & ~Qt::LeftButton,
|
||||
QApplication::keyboardModifiers(), Qt::MouseEventSynthesizedByQt);
|
||||
qt_sendSpontaneousEvent(target, &fake);
|
||||
return;
|
||||
}
|
||||
|
||||
QTouchEvent::TouchPoint touchPoint = te->touchPoints().at(0);
|
||||
const QPointF screenPos = touchPoint.screenPos();
|
||||
const QPointF delta = screenPos - screenPos.toPoint();
|
||||
const QPointF pos = target->mapFromGlobal(screenPos.toPoint()) + delta;
|
||||
|
||||
private:
|
||||
int pressDelayTimer;
|
||||
QScopedPointer<QMouseEvent> pressDelayEvent;
|
||||
bool sendingEvent;
|
||||
Qt::MouseButton mouseButton;
|
||||
QPointer<QWidget> mouseTarget;
|
||||
Qt::MouseEventSource mouseEventSource;
|
||||
};
|
||||
QEvent::Type mouseEventType = QEvent::MouseMove;
|
||||
Qt::MouseButton button = Qt::NoButton;
|
||||
Qt::MouseButtons buttons = Qt::LeftButton;
|
||||
|
||||
switch (touchPoint.state()) {
|
||||
case Qt::TouchPointPressed:
|
||||
if (isDoubleClick()) {
|
||||
mouseEventType = QEvent::MouseButtonDblClick;
|
||||
button = Qt::NoButton;
|
||||
m_mousePressTime = QTime();
|
||||
}
|
||||
else {
|
||||
mouseEventType = QEvent::MouseButtonPress;
|
||||
button = Qt::LeftButton;
|
||||
m_mousePressTime = QTime::currentTime();
|
||||
}
|
||||
break;
|
||||
case Qt::TouchPointReleased:
|
||||
mouseEventType = QEvent::MouseButtonRelease;
|
||||
button = Qt::LeftButton;
|
||||
buttons = Qt::NoButton;
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
|
||||
if (mouseEventType == QEvent::MouseButtonPress) {
|
||||
qFGDebug() << "QFG: send fake move event to" << target;
|
||||
QMouseEvent fake(QEvent::MouseMove, pos, pos, screenPos,
|
||||
Qt::NoButton, Qt::NoButton,
|
||||
QApplication::keyboardModifiers(), Qt::MouseEventSynthesizedByQt);
|
||||
qt_sendSpontaneousEvent(target, &fake);
|
||||
}
|
||||
|
||||
// will not synthesize QEvent::NonClientAreaMouseButtonDblClick from touch
|
||||
qFGDebug() << "QFG: send fake " << mouseEventType << "to" << target;
|
||||
QMouseEvent fake(mouseEventType, pos, pos, screenPos,
|
||||
button, buttons, QApplication::keyboardModifiers(), Qt::MouseEventSynthesizedByQt);
|
||||
qt_sendSpontaneousEvent(target, &fake);
|
||||
}
|
||||
|
||||
bool TouchPressDelayHandler::isDoubleClick() const
|
||||
{
|
||||
// if not save time, return false then save current time
|
||||
if (m_mousePressTime.isNull())
|
||||
return false;
|
||||
|
||||
int doubleClickInterval = static_cast<int>(QGuiApplication::styleHints()->mouseDoubleClickInterval());
|
||||
int elapsed = m_mousePressTime.msecsTo(QTime::currentTime());
|
||||
bool doubleClick = elapsed < doubleClickInterval;
|
||||
|
||||
return doubleClick;
|
||||
}
|
||||
|
||||
QEvent* TouchPressDelayHandler::copyEvent(QEvent *e)
|
||||
{
|
||||
switch (e->type()) {
|
||||
case QEvent::TouchBegin:
|
||||
case QEvent::TouchUpdate:
|
||||
case QEvent::TouchEnd:
|
||||
case QEvent::TouchCancel: {
|
||||
QTouchEvent* te = dynamic_cast<QTouchEvent*>(e);
|
||||
QTouchEvent* copy = new QTouchEvent(te->type(), te->device(), te->modifiers(),
|
||||
te->touchPointStates(), te->touchPoints());
|
||||
copy->setWindow(te->window());
|
||||
return copy;
|
||||
break;
|
||||
}
|
||||
default:
|
||||
break;
|
||||
}
|
||||
|
||||
return nullptr;
|
||||
}
|
||||
|
||||
/*!
|
||||
\internal
|
||||
|
|
@ -350,15 +574,16 @@ QFlickGesture::QFlickGesture(QObject *receiver, Qt::MouseButton button, QObject
|
|||
{
|
||||
d_func()->q_ptr = this;
|
||||
d_func()->receiver = receiver;
|
||||
d_func()->receiverScroller = (receiver && QScroller::hasScroller(receiver)) ? QScroller::scroller(receiver) : nullptr;
|
||||
d_func()->receiverScroller = (receiver && QScroller::hasScroller(receiver)) ? QScroller::scroller(receiver) : 0;
|
||||
d_func()->button = button;
|
||||
d_func()->pressDelayHandler = PressDelayHandler::create(button);
|
||||
}
|
||||
|
||||
QFlickGesture::~QFlickGesture()
|
||||
{ }
|
||||
|
||||
QFlickGesturePrivate::QFlickGesturePrivate()
|
||||
: receiverScroller(nullptr), button(Qt::NoButton), macIgnoreWheel(false)
|
||||
: receiverScroller(0), button(Qt::NoButton), macIgnoreWheel(false), pressDelayHandler(nullptr)
|
||||
{ }
|
||||
|
||||
|
||||
|
|
@ -415,16 +640,16 @@ QGestureRecognizer::Result QFlickGestureRecognizer::recognize(QGesture *state,
|
|||
#endif
|
||||
|
||||
// this is only set for events that we inject into the event loop via sendEvent()
|
||||
if (PressDelayHandler::instance()->shouldEventBeIgnored(event)) {
|
||||
if (d->pressDelayHandler->shouldEventBeIgnored()) {
|
||||
//qFGDebug() << state << "QFG: ignored event: " << event->type();
|
||||
return Ignore;
|
||||
}
|
||||
|
||||
const QMouseEvent *me = nullptr;
|
||||
const QMouseEvent *me = 0;
|
||||
#if QT_CONFIG(graphicsview)
|
||||
const QGraphicsSceneMouseEvent *gsme = nullptr;
|
||||
const QGraphicsSceneMouseEvent *gsme = 0;
|
||||
#endif
|
||||
const QTouchEvent *te = nullptr;
|
||||
const QTouchEvent *te = 0;
|
||||
QPoint globalPos;
|
||||
|
||||
// qFGDebug() << "FlickGesture "<<state<<"watched:"<<watched<<"receiver"<<d->receiver<<"event"<<event->type()<<"button"<<button;
|
||||
|
|
@ -620,7 +845,7 @@ QGestureRecognizer::Result QFlickGestureRecognizer::recognize(QGesture *state,
|
|||
#if QT_CONFIG(graphicsview)
|
||||
|| gsme
|
||||
#endif
|
||||
) && scrollerIsActive)
|
||||
|| te) && scrollerIsActive)
|
||||
result |= ConsumeEventHint;
|
||||
|
||||
// The only problem with this approach is that we consume the
|
||||
|
|
@ -632,11 +857,11 @@ QGestureRecognizer::Result QFlickGestureRecognizer::recognize(QGesture *state,
|
|||
#if QT_CONFIG(graphicsview)
|
||||
|| gsme
|
||||
#endif
|
||||
) {
|
||||
|| te) {
|
||||
if (!scrollerWasDragging && !scrollerWasScrolling && scrollerIsActive)
|
||||
PressDelayHandler::instance()->scrollerBecameActive();
|
||||
d->pressDelayHandler->scrollerBecameActive();
|
||||
else if (scrollerWasScrolling && (scroller->state() == QScroller::Dragging || scroller->state() == QScroller::Inactive))
|
||||
PressDelayHandler::instance()->scrollerWasIntercepted();
|
||||
d->pressDelayHandler->scrollerWasIntercepted();
|
||||
}
|
||||
|
||||
if (!inputType) {
|
||||
|
|
@ -644,6 +869,7 @@ QGestureRecognizer::Result QFlickGestureRecognizer::recognize(QGesture *state,
|
|||
} else {
|
||||
switch (event->type()) {
|
||||
case QEvent::MouseButtonPress:
|
||||
case QEvent::TouchBegin:
|
||||
#if QT_CONFIG(graphicsview)
|
||||
case QEvent::GraphicsSceneMousePress:
|
||||
#endif
|
||||
|
|
@ -652,24 +878,21 @@ QGestureRecognizer::Result QFlickGestureRecognizer::recognize(QGesture *state,
|
|||
if (pressDelay > 0) {
|
||||
result |= ConsumeEventHint;
|
||||
|
||||
PressDelayHandler::instance()->pressed(event, pressDelay);
|
||||
d->pressDelayHandler->pressed(event, pressDelay);
|
||||
event->accept();
|
||||
}
|
||||
}
|
||||
Q_FALLTHROUGH();
|
||||
case QEvent::TouchBegin:
|
||||
q->setHotSpot(globalPos);
|
||||
result |= scrollerIsActive ? TriggerGesture : MayBeGesture;
|
||||
break;
|
||||
|
||||
case QEvent::MouseMove:
|
||||
case QEvent::TouchUpdate:
|
||||
#if QT_CONFIG(graphicsview)
|
||||
case QEvent::GraphicsSceneMouseMove:
|
||||
#endif
|
||||
if (PressDelayHandler::instance()->isDelaying())
|
||||
if (d->pressDelayHandler->isDelaying())
|
||||
result |= ConsumeEventHint;
|
||||
Q_FALLTHROUGH();
|
||||
case QEvent::TouchUpdate:
|
||||
result |= scrollerIsActive ? TriggerGesture : Ignore;
|
||||
break;
|
||||
|
||||
|
|
@ -677,10 +900,9 @@ QGestureRecognizer::Result QFlickGestureRecognizer::recognize(QGesture *state,
|
|||
case QEvent::GraphicsSceneMouseRelease:
|
||||
#endif
|
||||
case QEvent::MouseButtonRelease:
|
||||
if (PressDelayHandler::instance()->released(event, scrollerWasDragging || scrollerWasScrolling, scrollerIsActive))
|
||||
result |= ConsumeEventHint;
|
||||
Q_FALLTHROUGH();
|
||||
case QEvent::TouchEnd:
|
||||
if (d->pressDelayHandler->released(event, scrollerWasDragging || scrollerWasScrolling, scrollerIsActive))
|
||||
result |= ConsumeEventHint;
|
||||
result |= scrollerIsActive ? FinishGesture : CancelGesture;
|
||||
break;
|
||||
|
||||
|
|
|
|||
|
|
@ -71,12 +71,65 @@ class Q_WIDGETS_EXPORT QFlickGesture : public QGesture
|
|||
Q_DECLARE_PRIVATE(QFlickGesture)
|
||||
|
||||
public:
|
||||
QFlickGesture(QObject *receiver, Qt::MouseButton button, QObject *parent = nullptr);
|
||||
QFlickGesture(QObject *receiver, Qt::MouseButton button, QObject *parent = 0);
|
||||
~QFlickGesture();
|
||||
|
||||
friend class QFlickGestureRecognizer;
|
||||
};
|
||||
|
||||
class PressDelayHandler : public QObject
|
||||
{
|
||||
Q_OBJECT
|
||||
public:
|
||||
PressDelayHandler(QObject *parent = nullptr);
|
||||
enum {
|
||||
UngrabMouseBefore = 1,
|
||||
RegrabMouseAfterwards = 2
|
||||
};
|
||||
|
||||
static PressDelayHandler* create(Qt::MouseButton button = Qt::LeftButton);
|
||||
|
||||
bool shouldEventBeIgnored() const;
|
||||
bool isDelaying() const;
|
||||
|
||||
void pressed(QEvent *e, int delay);
|
||||
bool released(QEvent *e, bool scrollerWasActive, bool scrollerIsActive);
|
||||
|
||||
void scrollerWasIntercepted();
|
||||
void scrollerBecameActive();
|
||||
|
||||
protected:
|
||||
void sendSpontaneousEvent(QEvent *e, QObject *target, int flags);
|
||||
QPointer<QObject> pressTarget() const;
|
||||
void setPressTarget(QObject* pressTarget);
|
||||
void resetPressTarget();
|
||||
|
||||
private slots:
|
||||
void onDelayTimeout();
|
||||
private:
|
||||
virtual void saveDelayEventInfo(QEvent* e) = 0;
|
||||
virtual QEvent* copyEvent(QEvent* e) = 0;
|
||||
|
||||
virtual void sendEvent(QEvent *e, QObject* target) = 0;
|
||||
virtual void releaseAllPressed() = 0;
|
||||
|
||||
QGraphicsItem* mouseGrabberItem() const;
|
||||
void grabMouse(QGraphicsItem* grabber) const;
|
||||
void ungrabMouse(QGraphicsItem* grabber) const;
|
||||
|
||||
bool hasSavedDelayEvent() const;
|
||||
void resetDelayEvent();
|
||||
void stopTimer();
|
||||
void startTimer(int timeout);
|
||||
|
||||
private:
|
||||
// there will only be one QScroller active at same time
|
||||
static QTimer* m_pressDelayTimer;
|
||||
static bool m_sendingEvent;
|
||||
static QScopedPointer<QEvent> m_pressDelayEvent;
|
||||
static QPointer<QObject> m_pressTarget;
|
||||
};
|
||||
|
||||
class QFlickGesturePrivate : public QGesturePrivate
|
||||
{
|
||||
Q_DECLARE_PUBLIC(QFlickGesture)
|
||||
|
|
@ -87,6 +140,7 @@ public:
|
|||
QScroller *receiverScroller;
|
||||
Qt::MouseButton button; // NoButton == Touch
|
||||
bool macIgnoreWheel;
|
||||
PressDelayHandler *pressDelayHandler;
|
||||
};
|
||||
|
||||
class QFlickGestureRecognizer : public QGestureRecognizer
|
||||
|
|
@ -102,6 +156,43 @@ private:
|
|||
Qt::MouseButton button; // NoButton == Touch
|
||||
};
|
||||
|
||||
class MousePressDelayHandler : public PressDelayHandler
|
||||
{
|
||||
public:
|
||||
MousePressDelayHandler(QObject *parent = nullptr);
|
||||
|
||||
private:
|
||||
void saveDelayEventInfo(QEvent* e) override;
|
||||
|
||||
QEvent* copyEvent(QEvent *e) override;
|
||||
void sendEvent(QEvent *e, QObject* target) override;
|
||||
void releaseAllPressed() override;
|
||||
|
||||
Qt::MouseButton m_mouseButton;
|
||||
Qt::MouseEventSource m_mouseEventSource;
|
||||
};
|
||||
|
||||
class TouchPressDelayHandler : public PressDelayHandler
|
||||
{
|
||||
public:
|
||||
TouchPressDelayHandler(QObject *parent = nullptr);
|
||||
|
||||
private:
|
||||
void saveDelayEventInfo(QEvent* e) override;
|
||||
|
||||
QEvent* copyEvent(QEvent *e) override;
|
||||
void sendEvent(QEvent *e, QObject* target) override;
|
||||
void releaseAllPressed() override;
|
||||
|
||||
void sendMouseEventFromTouch(QTouchEvent *te, QWindow *target);
|
||||
bool isDoubleClick() const;
|
||||
|
||||
QPointer<QWidget> m_targetWidget;
|
||||
QTouchDevice* m_device;
|
||||
QTouchEvent::TouchPoint m_touchBeginPoint;
|
||||
QTime m_mousePressTime;
|
||||
};
|
||||
|
||||
QT_END_NAMESPACE
|
||||
|
||||
#endif // QT_NO_GESTURES
|
||||
|
|
|
|||
Loading…
Reference in New Issue