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Alan Alpert authored
Task-number: QTBUG-30837 Change-Id: Ia39c0d85d29cf87861083e4a5170aab701fb2199 Reviewed-by:Andrew den Exter <andrew.den.exter@qinetic.com.au>
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qwidgetwindow.cpp 32.00 KiB
/******************************************************************************** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).** Contact: http://www.qt-project.org/legal**** This file is part of the QtWidgets module of the Qt Toolkit.**** $QT_BEGIN_LICENSE:LGPL$** 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** a written agreement between you and Digia. For licensing terms and** conditions see http://qt.digia.com/licensing. For further information** use the contact form at http://qt.digia.com/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 2.1 as published by the Free Software** Foundation and appearing in the file LICENSE.LGPL included in the** packaging of this file. Please review the following information to** ensure the GNU Lesser General Public License version 2.1 requirements** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.**** In addition, as a special exception, Digia gives you certain additional** rights. These rights are described in the Digia Qt LGPL Exception** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.**** GNU General Public License Usage** Alternatively, this file may be used under the terms of the GNU** General Public License version 3.0 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 3.0 requirements will be** met: http://www.gnu.org/copyleft/gpl.html.****** $QT_END_LICENSE$******************************************************************************/#include "private/qwindow_p.h"#include "qwidgetwindow_p.h"#include "private/qwidget_p.h"#include "private/qapplication_p.h"#ifndef QT_NO_ACCESSIBILITY#include <QtGui/qaccessible.h>#endif#include <private/qwidgetbackingstore_p.h>#include <qpa/qwindowsysteminterface_p.h>#include <qpa/qplatformtheme.h>#include <qpa/qplatformwindow.h>#include <private/qgesturemanager_p.h>QT_BEGIN_NAMESPACEQ_WIDGETS_EXPORT extern bool qt_tab_all_widgets();QWidget *qt_button_down = 0; // widget got last button-downstatic QPointer<QWidget> qt_tablet_target = 0;// popup controlQWidget *qt_popup_down = 0; // popup that contains the pressed widgetextern int openPopupCount;bool qt_replay_popup_mouse_event = false;extern bool qt_try_modal(QWidget *widget, QEvent::Type type);class QWidgetWindowPrivate : public QWindowPrivate{7172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140
Q_DECLARE_PUBLIC(QWidgetWindow)
public:
QWindow *eventReceiver() {
Q_Q(QWidgetWindow);
QWindow *w = q;
while (w->parent() && qobject_cast<QWidgetWindow *>(w) && qobject_cast<QWidgetWindow *>(w->parent())) {
w = w->parent();
}
return w;
}
void clearFocusObject()
{
if (QApplicationPrivate::focus_widget)
QApplicationPrivate::focus_widget->clearFocus();
}
};
QWidgetWindow::QWidgetWindow(QWidget *widget)
: QWindow(*new QWidgetWindowPrivate(), 0)
, m_widget(widget)
{
updateObjectName();
// Enable QOpenGLWidget/QQuickWidget children if the platform plugin supports it,
// and the application developer has not explicitly disabled it.
if (QGuiApplicationPrivate::platformIntegration()->hasCapability(QPlatformIntegration::RasterGLSurface)
&& !QApplication::testAttribute(Qt::AA_ForceRasterWidgets)) {
setSurfaceType(QSurface::RasterGLSurface);
}
connect(m_widget, &QObject::objectNameChanged, this, &QWidgetWindow::updateObjectName);
connect(this, SIGNAL(screenChanged(QScreen*)), this, SLOT(handleScreenChange()));
}
QWidgetWindow::~QWidgetWindow()
{
}
#ifndef QT_NO_ACCESSIBILITY
QAccessibleInterface *QWidgetWindow::accessibleRoot() const
{
if (m_widget)
return QAccessible::queryAccessibleInterface(m_widget);
return 0;
}
#endif
QObject *QWidgetWindow::focusObject() const
{
QWidget *widget = m_widget->focusWidget();
if (!widget)
widget = m_widget;
return widget;
}
bool QWidgetWindow::event(QEvent *event)
{
if (m_widget->testAttribute(Qt::WA_DontShowOnScreen)) {
// \a event is uninteresting for QWidgetWindow, the event was probably
// generated before WA_DontShowOnScreen was set
return m_widget->event(event);
}
switch (event->type()) {
case QEvent::Close:
handleCloseEvent(static_cast<QCloseEvent *>(event));
return true;
141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210
case QEvent::Enter:
case QEvent::Leave:
handleEnterLeaveEvent(event);
return true;
// these should not be sent to QWidget, the corresponding events
// are sent by QApplicationPrivate::notifyActiveWindowChange()
case QEvent::FocusIn:
handleFocusInEvent(static_cast<QFocusEvent *>(event));
// Fallthrough
case QEvent::FocusOut: {
#ifndef QT_NO_ACCESSIBILITY
QAccessible::State state;
state.active = true;
QAccessibleStateChangeEvent ev(widget(), state);
QAccessible::updateAccessibility(&ev);
#endif
return false; }
case QEvent::FocusAboutToChange:
if (QApplicationPrivate::focus_widget) {
if (QApplicationPrivate::focus_widget->testAttribute(Qt::WA_InputMethodEnabled))
qApp->inputMethod()->commit();
QGuiApplication::sendSpontaneousEvent(QApplicationPrivate::focus_widget, event);
}
return true;
case QEvent::KeyPress:
case QEvent::KeyRelease:
case QEvent::ShortcutOverride:
handleKeyEvent(static_cast<QKeyEvent *>(event));
return true;
case QEvent::MouseMove:
case QEvent::MouseButtonPress:
case QEvent::MouseButtonRelease:
case QEvent::MouseButtonDblClick:
handleMouseEvent(static_cast<QMouseEvent *>(event));
return true;
case QEvent::NonClientAreaMouseMove:
case QEvent::NonClientAreaMouseButtonPress:
case QEvent::NonClientAreaMouseButtonRelease:
case QEvent::NonClientAreaMouseButtonDblClick:
handleNonClientAreaMouseEvent(static_cast<QMouseEvent *>(event));
return true;
case QEvent::TouchBegin:
case QEvent::TouchUpdate:
case QEvent::TouchEnd:
case QEvent::TouchCancel:
handleTouchEvent(static_cast<QTouchEvent *>(event));
return true;
case QEvent::Move:
handleMoveEvent(static_cast<QMoveEvent *>(event));
return true;
case QEvent::Resize:
handleResizeEvent(static_cast<QResizeEvent *>(event));
return true;
#ifndef QT_NO_WHEELEVENT
case QEvent::Wheel:
handleWheelEvent(static_cast<QWheelEvent *>(event));
return true;
#endif
#ifndef QT_NO_DRAGANDDROP
211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280
case QEvent::DragEnter:
case QEvent::DragMove:
handleDragEnterMoveEvent(static_cast<QDragMoveEvent *>(event));
return true;
case QEvent::DragLeave:
handleDragLeaveEvent(static_cast<QDragLeaveEvent *>(event));
return true;
case QEvent::Drop:
handleDropEvent(static_cast<QDropEvent *>(event));
return true;
#endif
case QEvent::Expose:
handleExposeEvent(static_cast<QExposeEvent *>(event));
return true;
case QEvent::WindowStateChange:
handleWindowStateChangedEvent(static_cast<QWindowStateChangeEvent *>(event));
return true;
case QEvent::ThemeChange: {
QEvent widgetEvent(QEvent::ThemeChange);
QGuiApplication::sendSpontaneousEvent(m_widget, &widgetEvent);
}
return true;
#ifndef QT_NO_TABLETEVENT
case QEvent::TabletPress:
case QEvent::TabletMove:
case QEvent::TabletRelease:
handleTabletEvent(static_cast<QTabletEvent *>(event));
return true;
#endif
#ifndef QT_NO_GESTURES
case QEvent::NativeGesture:
handleGestureEvent(static_cast<QNativeGestureEvent *>(event));
return true;
#endif
#ifndef QT_NO_CONTEXTMENU
case QEvent::ContextMenu:
handleContextMenuEvent(static_cast<QContextMenuEvent *>(event));
return true;
#endif
// Handing show events to widgets (see below) here would cause them to be triggered twice
case QEvent::Show:
case QEvent::Hide:
return QWindow::event(event);
case QEvent::WindowBlocked:
qt_button_down = 0;
break;
default:
break;
}
return m_widget->event(event) || QWindow::event(event);
}
QPointer<QWidget> qt_last_mouse_receiver = 0;
void QWidgetWindow::handleEnterLeaveEvent(QEvent *event)
{
if (event->type() == QEvent::Leave) {
QWidget *enter = 0;
// Check from window system event queue if the next queued enter targets a window
// in the same window hierarchy (e.g. enter a child of this window). If so,
// remove the enter event from queue and handle both in single dispatch.
QWindowSystemInterfacePrivate::EnterEvent *systemEvent =
281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350
static_cast<QWindowSystemInterfacePrivate::EnterEvent *>
(QWindowSystemInterfacePrivate::peekWindowSystemEvent(QWindowSystemInterfacePrivate::Enter));
const QPointF globalPosF = systemEvent ? systemEvent->globalPos : QGuiApplicationPrivate::lastCursorPosition;
if (systemEvent) {
if (QWidgetWindow *enterWindow = qobject_cast<QWidgetWindow *>(systemEvent->enter))
{
QWindow *thisParent = this;
QWindow *enterParent = enterWindow;
while (thisParent->parent())
thisParent = thisParent->parent();
while (enterParent->parent())
enterParent = enterParent->parent();
if (thisParent == enterParent) {
QGuiApplicationPrivate::currentMouseWindow = enterWindow;
enter = enterWindow->widget();
QWindowSystemInterfacePrivate::removeWindowSystemEvent(systemEvent);
}
}
}
// Enter-leave between sibling widgets is ignored when there is a mousegrabber - this makes
// both native and non-native widgets work similarly.
// When mousegrabbing, leaves are only generated if leaving the parent window.
if (!enter || !QWidget::mouseGrabber()) {
// Preferred leave target is the last mouse receiver, unless it has native window,
// in which case it is assumed to receive it's own leave event when relevant.
QWidget *leave = m_widget;
if (qt_last_mouse_receiver && !qt_last_mouse_receiver->internalWinId())
leave = qt_last_mouse_receiver.data();
QApplicationPrivate::dispatchEnterLeave(enter, leave, globalPosF);
qt_last_mouse_receiver = enter;
}
} else {
const QEnterEvent *ee = static_cast<QEnterEvent *>(event);
QWidget *child = m_widget->childAt(ee->pos());
QWidget *receiver = child ? child : m_widget;
QApplicationPrivate::dispatchEnterLeave(receiver, 0, ee->screenPos());
qt_last_mouse_receiver = receiver;
}
}
QWidget *QWidgetWindow::getFocusWidget(FocusWidgets fw)
{
QWidget *tlw = m_widget;
QWidget *w = tlw->nextInFocusChain();
QWidget *last = tlw;
uint focus_flag = qt_tab_all_widgets() ? Qt::TabFocus : Qt::StrongFocus;
while (w != tlw)
{
if (((w->focusPolicy() & focus_flag) == focus_flag)
&& w->isVisibleTo(m_widget) && w->isEnabled())
{
last = w;
if (fw == FirstFocusWidget)
break;
}
w = w->nextInFocusChain();
}
return last;
}
void QWidgetWindow::handleFocusInEvent(QFocusEvent *e)
{
QWidget *focusWidget = 0;
if (e->reason() == Qt::BacktabFocusReason)
focusWidget = getFocusWidget(LastFocusWidget);
else if (e->reason() == Qt::TabFocusReason)
351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420
focusWidget = getFocusWidget(FirstFocusWidget);
if (focusWidget != 0)
focusWidget->setFocus();
}
void QWidgetWindow::handleNonClientAreaMouseEvent(QMouseEvent *e)
{
QApplication::sendSpontaneousEvent(m_widget, e);
}
void QWidgetWindow::handleMouseEvent(QMouseEvent *event)
{
static const QEvent::Type contextMenuTrigger =
QGuiApplicationPrivate::platformTheme()->themeHint(QPlatformTheme::ContextMenuOnMouseRelease).toBool() ?
QEvent::MouseButtonRelease : QEvent::MouseButtonPress;
if (qApp->d_func()->inPopupMode()) {
QWidget *activePopupWidget = qApp->activePopupWidget();
QWidget *popup = activePopupWidget;
QPoint mapped = event->pos();
if (popup != m_widget)
mapped = popup->mapFromGlobal(event->globalPos());
bool releaseAfter = false;
QWidget *popupChild = popup->childAt(mapped);
if (popup != qt_popup_down) {
qt_button_down = 0;
qt_popup_down = 0;
}
switch (event->type()) {
case QEvent::MouseButtonPress:
case QEvent::MouseButtonDblClick:
qt_button_down = popupChild;
qt_popup_down = popup;
break;
case QEvent::MouseButtonRelease:
releaseAfter = true;
break;
default:
break; // nothing for mouse move
}
int oldOpenPopupCount = openPopupCount;
if (popup->isEnabled()) {
// deliver event
qt_replay_popup_mouse_event = false;
QWidget *receiver = popup;
QPoint widgetPos = mapped;
if (qt_button_down)
receiver = qt_button_down;
else if (popupChild)
receiver = popupChild;
if (receiver != popup)
widgetPos = receiver->mapFromGlobal(event->globalPos());
QWidget *alien = m_widget->childAt(m_widget->mapFromGlobal(event->globalPos()));
QMouseEvent e(event->type(), widgetPos, event->windowPos(), event->screenPos(), event->button(), event->buttons(), event->modifiers());
QGuiApplicationPrivate::setMouseEventSource(&e, QGuiApplicationPrivate::mouseEventSource(event));
e.setTimestamp(event->timestamp());
QApplicationPrivate::sendMouseEvent(receiver, &e, alien, m_widget, &qt_button_down, qt_last_mouse_receiver);
} else {
// close disabled popups when a mouse button is pressed or released
switch (event->type()) {
case QEvent::MouseButtonPress:
case QEvent::MouseButtonDblClick:
case QEvent::MouseButtonRelease:
popup->close();
break;
default:
421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490
break;
}
}
if (qApp->activePopupWidget() != activePopupWidget
&& qt_replay_popup_mouse_event) {
if (m_widget->windowType() != Qt::Popup)
qt_button_down = 0;
if (event->type() == QEvent::MouseButtonPress) {
// the popup disappeared, replay the mouse press event
QWidget *w = QApplication::widgetAt(event->globalPos());
if (w && !QApplicationPrivate::isBlockedByModal(w)) {
// activate window of the widget under mouse pointer
if (!w->isActiveWindow()) {
w->activateWindow();
w->raise();
}
QWindow *win = w->windowHandle();
if (!win)
win = w->nativeParentWidget()->windowHandle();
if (win && win->geometry().contains(event->globalPos())) {
// Use postEvent() to ensure the local QEventLoop terminates when called from QMenu::exec()
const QPoint localPos = win->mapFromGlobal(event->globalPos());
QMouseEvent *e = new QMouseEvent(QEvent::MouseButtonPress, localPos, localPos, event->globalPos(), event->button(), event->buttons(), event->modifiers());
QCoreApplicationPrivate::setEventSpontaneous(e, true);
QGuiApplicationPrivate::setMouseEventSource(e, QGuiApplicationPrivate::mouseEventSource(event));
e->setTimestamp(event->timestamp());
QCoreApplication::postEvent(win, e);
}
}
}
qt_replay_popup_mouse_event = false;
#ifndef QT_NO_CONTEXTMENU
} else if (event->type() == contextMenuTrigger
&& event->button() == Qt::RightButton
&& (openPopupCount == oldOpenPopupCount)) {
QWidget *popupEvent = popup;
if (qt_button_down)
popupEvent = qt_button_down;
else if(popupChild)
popupEvent = popupChild;
QContextMenuEvent e(QContextMenuEvent::Mouse, mapped, event->globalPos(), event->modifiers());
QApplication::sendSpontaneousEvent(popupEvent, &e);
#endif
}
if (releaseAfter) {
qt_button_down = 0;
qt_popup_down = 0;
}
return;
}
// modal event handling
if (QApplicationPrivate::instance()->modalState() && !qt_try_modal(m_widget, event->type()))
return;
// which child should have it?
QWidget *widget = m_widget->childAt(event->pos());
QPoint mapped = event->pos();
if (!widget)
widget = m_widget;
if (event->type() == QEvent::MouseButtonPress)
qt_button_down = widget;
QWidget *receiver = QApplicationPrivate::pickMouseReceiver(m_widget, event->windowPos().toPoint(), &mapped, event->type(), event->buttons(),
qt_button_down, widget);
491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560
if (!receiver) {
if (event->type() == QEvent::MouseButtonRelease)
QApplicationPrivate::mouse_buttons &= ~event->button();
return;
}
if ((event->type() != QEvent::MouseButtonPress)
|| !(event->flags().testFlag(Qt::MouseEventCreatedDoubleClick))) {
// The preceding statement excludes MouseButtonPress events which caused
// creation of a MouseButtonDblClick event. QTBUG-25831
QMouseEvent translated(event->type(), mapped, event->windowPos(), event->screenPos(),
event->button(), event->buttons(), event->modifiers());
QGuiApplicationPrivate::setMouseEventSource(&translated, QGuiApplicationPrivate::mouseEventSource(event));
translated.setTimestamp(event->timestamp());
QApplicationPrivate::sendMouseEvent(receiver, &translated, widget, m_widget,
&qt_button_down, qt_last_mouse_receiver);
}
#ifndef QT_NO_CONTEXTMENU
if (event->type() == contextMenuTrigger && event->button() == Qt::RightButton) {
QContextMenuEvent e(QContextMenuEvent::Mouse, mapped, event->globalPos(), event->modifiers());
QGuiApplication::sendSpontaneousEvent(receiver, &e);
}
#endif
}
void QWidgetWindow::handleTouchEvent(QTouchEvent *event)
{
if (event->type() == QEvent::TouchCancel) {
QApplicationPrivate::translateTouchCancel(event->device(), event->timestamp());
event->accept();
} else if (qApp->d_func()->inPopupMode()) {
// Ignore touch events for popups. This will cause QGuiApplication to synthesise mouse
// events instead, which QWidgetWindow::handleMouseEvent will forward correctly:
event->ignore();
} else {
event->setAccepted(QApplicationPrivate::translateRawTouchEvent(m_widget, event->device(), event->touchPoints(), event->timestamp()));
}
}
void QWidgetWindow::handleKeyEvent(QKeyEvent *event)
{
if (QApplicationPrivate::instance()->modalState() && !qt_try_modal(m_widget, event->type()))
return;
QObject *receiver = QWidget::keyboardGrabber();
if (!receiver && QApplicationPrivate::inPopupMode()) {
QWidget *popup = QApplication::activePopupWidget();
QWidget *popupFocusWidget = popup->focusWidget();
receiver = popupFocusWidget ? popupFocusWidget : popup;
}
if (!receiver)
receiver = focusObject();
QGuiApplication::sendSpontaneousEvent(receiver, event);
}
void QWidgetWindow::updateGeometry()
{
if (m_widget->testAttribute(Qt::WA_OutsideWSRange))
return;
const QMargins margins = frameMargins();
m_widget->data->crect = geometry();
QTLWExtra *te = m_widget->d_func()->topData();
te->posIncludesFrame= false;
te->frameStrut.setCoords(margins.left(), margins.top(), margins.right(), margins.bottom());
m_widget->data->fstrut_dirty = false;
}
561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630
static void sendScreenChangeRecursively(QWidget *widget)
{
QEvent e(QEvent::ScreenChangeInternal);
QApplication::sendEvent(widget, &e);
QWidgetPrivate *d = QWidgetPrivate::get(widget);
for (int i = 0; i < d->children.size(); ++i) {
QWidget *w = qobject_cast<QWidget *>(d->children.at(i));
if (w)
sendScreenChangeRecursively(w);
}
}
void QWidgetWindow::handleScreenChange()
{
// Send an event recursively to the widget and its children.
sendScreenChangeRecursively(m_widget);
// Invalidate the backing store buffer and repaint immediately.
repaintWindow();
}
void QWidgetWindow::repaintWindow()
{
if (!m_widget->isVisible() || !m_widget->updatesEnabled())
return;
QTLWExtra *tlwExtra = m_widget->window()->d_func()->maybeTopData();
if (tlwExtra && !tlwExtra->inTopLevelResize && tlwExtra->backingStore)
tlwExtra->backingStoreTracker->markDirty(m_widget->rect(), m_widget,
QWidgetBackingStore::UpdateNow, QWidgetBackingStore::BufferInvalid);
}
Qt::WindowState effectiveState(Qt::WindowStates state);
// Store normal geometry used for saving application settings.
void QWidgetWindow::updateNormalGeometry()
{
QTLWExtra *tle = m_widget->d_func()->maybeTopData();
if (!tle)
return;
// Ask platform window, default to widget geometry.
QRect normalGeometry;
if (const QPlatformWindow *pw = handle())
normalGeometry = pw->normalGeometry();
if (!normalGeometry.isValid() && effectiveState(m_widget->windowState()) == Qt::WindowNoState)
normalGeometry = m_widget->geometry();
if (normalGeometry.isValid())
tle->normalGeometry = normalGeometry;
}
void QWidgetWindow::handleMoveEvent(QMoveEvent *event)
{
updateGeometry();
QGuiApplication::sendSpontaneousEvent(m_widget, event);
}
void QWidgetWindow::handleResizeEvent(QResizeEvent *event)
{
QSize oldSize = m_widget->data->crect.size();
updateGeometry();
QGuiApplication::sendSpontaneousEvent(m_widget, event);
if (m_widget->d_func()->paintOnScreen()) {
QRegion updateRegion(geometry());
if (m_widget->testAttribute(Qt::WA_StaticContents))
updateRegion -= QRect(0, 0, oldSize.width(), oldSize.height());
m_widget->d_func()->syncBackingStore(updateRegion);
} else {
m_widget->d_func()->syncBackingStore();
631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667668669670671672673674675676677678679680681682683684685686687688689690691692693694695696697698699700
}
}
void QWidgetWindow::handleCloseEvent(QCloseEvent *event)
{
bool is_closing = m_widget->d_func()->close_helper(QWidgetPrivate::CloseWithSpontaneousEvent);
event->setAccepted(is_closing);
}
#ifndef QT_NO_WHEELEVENT
void QWidgetWindow::handleWheelEvent(QWheelEvent *event)
{
if (QApplicationPrivate::instance()->modalState() && !qt_try_modal(m_widget, event->type()))
return;
// which child should have it?
QWidget *widget = m_widget->childAt(event->pos());
if (!widget)
widget = m_widget;
QPoint mapped = widget->mapFrom(m_widget, event->pos());
QWheelEvent translated(mapped, event->globalPos(), event->pixelDelta(), event->angleDelta(), event->delta(), event->orientation(), event->buttons(), event->modifiers(), event->phase());
QGuiApplication::sendSpontaneousEvent(widget, &translated);
}
#endif // QT_NO_WHEELEVENT
#ifndef QT_NO_DRAGANDDROP
void QWidgetWindow::handleDragEnterMoveEvent(QDragMoveEvent *event)
{
Q_ASSERT(event->type() ==QEvent::DragMove || !m_dragTarget);
// Find a target widget under mouse that accepts drops (QTBUG-22987).
QWidget *widget = m_widget->childAt(event->pos());
if (!widget)
widget = m_widget;
for ( ; widget && !widget->isWindow() && !widget->acceptDrops(); widget = widget->parentWidget()) ;
if (widget && !widget->acceptDrops())
widget = 0;
// Target widget unchanged: DragMove
if (widget && widget == m_dragTarget.data()) {
Q_ASSERT(event->type() == QEvent::DragMove);
const QPoint mapped = widget->mapFromGlobal(m_widget->mapToGlobal(event->pos()));
QDragMoveEvent translated(mapped, event->possibleActions(), event->mimeData(), event->mouseButtons(), event->keyboardModifiers());
translated.setDropAction(event->dropAction());
if (event->isAccepted()) { // Handling 'DragEnter' should suffice for the application.
translated.accept();
translated.setDropAction(event->dropAction());
}
QGuiApplication::sendSpontaneousEvent(widget, &translated);
if (translated.isAccepted()) {
event->accept();
} else {
event->ignore();
}
event->setDropAction(translated.dropAction());
return;
}
// Target widget changed: Send DragLeave to previous, DragEnter to new if there is any
if (m_dragTarget.data()) {
QDragLeaveEvent le;
QGuiApplication::sendSpontaneousEvent(m_dragTarget.data(), &le);
m_dragTarget = 0;
}
if (!widget) {
event->ignore();
return;
701702703704705706707708709710711712713714715716717718719720721722723724725726727728729730731732733734735736737738739740741742743744745746747748749750751752753754755756757758759760761762763764765766767768769770
}
m_dragTarget = widget;
const QPoint mapped = widget->mapFromGlobal(m_widget->mapToGlobal(event->pos()));
QDragEnterEvent translated(mapped, event->possibleActions(), event->mimeData(), event->mouseButtons(), event->keyboardModifiers());
QGuiApplication::sendSpontaneousEvent(widget, &translated);
if (translated.isAccepted()) {
event->accept();
} else {
event->ignore();
}
event->setDropAction(translated.dropAction());
}
void QWidgetWindow::handleDragLeaveEvent(QDragLeaveEvent *event)
{
if (m_dragTarget)
QGuiApplication::sendSpontaneousEvent(m_dragTarget.data(), event);
m_dragTarget = 0;
}
void QWidgetWindow::handleDropEvent(QDropEvent *event)
{
if (m_dragTarget.isNull()) {
qWarning() << Q_FUNC_INFO << m_widget << ": No drag target set.";
event->ignore();
return;
}
const QPoint mapped = m_dragTarget.data()->mapFromGlobal(m_widget->mapToGlobal(event->pos()));
QDropEvent translated(mapped, event->possibleActions(), event->mimeData(), event->mouseButtons(), event->keyboardModifiers());
QGuiApplication::sendSpontaneousEvent(m_dragTarget.data(), &translated);
if (translated.isAccepted())
event->accept();
event->setDropAction(translated.dropAction());
m_dragTarget = 0;
}
#endif // QT_NO_DRAGANDDROP
void QWidgetWindow::handleExposeEvent(QExposeEvent *event)
{
if (isExposed()) {
m_widget->setAttribute(Qt::WA_Mapped);
if (!event->region().isNull()) {
// Exposed native widgets need to be marked dirty to get them repainted correctly.
if (m_widget->internalWinId() && !m_widget->isWindow() && m_widget->isVisible() && m_widget->updatesEnabled()) {
if (QWidgetBackingStore *bs = m_widget->d_func()->maybeBackingStore())
bs->markDirty(event->region(), m_widget);
}
m_widget->d_func()->syncBackingStore(event->region());
}
} else {
m_widget->setAttribute(Qt::WA_Mapped, false);
}
}
void QWidgetWindow::handleWindowStateChangedEvent(QWindowStateChangeEvent *event)
{
// QWindow does currently not know 'active'.
Qt::WindowStates eventState = event->oldState();
Qt::WindowStates widgetState = m_widget->windowState();
if (widgetState & Qt::WindowActive)
eventState |= Qt::WindowActive;
// Determine the new widget state, remember maximized/full screen
// during minimized.
switch (windowState()) {
case Qt::WindowNoState:
widgetState &= ~(Qt::WindowMinimized | Qt::WindowMaximized | Qt::WindowFullScreen);
break;
case Qt::WindowMinimized:
771772773774775776777778779780781782783784785786787788789790791792793794795796797798799800801802803804805806807808809810811812813814815816817818819820821822823824825826827828829830831832833834835836837838839840
widgetState |= Qt::WindowMinimized;
break;
case Qt::WindowMaximized:
updateNormalGeometry();
widgetState |= Qt::WindowMaximized;
widgetState &= ~(Qt::WindowMinimized | Qt::WindowFullScreen);
break;
case Qt::WindowFullScreen:
updateNormalGeometry();
widgetState |= Qt::WindowFullScreen;
widgetState &= ~(Qt::WindowMinimized);
break;
case Qt::WindowActive: // Not handled by QWindow
break;
}
// Sent event if the state changed (that is, it is not triggered by
// QWidget::setWindowState(), which also sends an event to the widget).
if (widgetState != int(m_widget->data->window_state)) {
m_widget->data->window_state = widgetState;
QWindowStateChangeEvent widgetEvent(eventState);
QGuiApplication::sendSpontaneousEvent(m_widget, &widgetEvent);
}
}
bool QWidgetWindow::nativeEvent(const QByteArray &eventType, void *message, long *result)
{
return m_widget->nativeEvent(eventType, message, result);
}
#ifndef QT_NO_TABLETEVENT
void QWidgetWindow::handleTabletEvent(QTabletEvent *event)
{
if (event->type() == QEvent::TabletPress) {
QWidget *widget = m_widget->childAt(event->pos());
if (!widget)
widget = m_widget;
qt_tablet_target = widget;
}
if (qt_tablet_target) {
QPointF delta = event->globalPosF() - event->globalPos();
QPointF mapped = qt_tablet_target->mapFromGlobal(event->globalPos()) + delta;
QTabletEvent ev(event->type(), mapped, event->globalPosF(), event->device(), event->pointerType(),
event->pressure(), event->xTilt(), event->yTilt(), event->tangentialPressure(),
event->rotation(), event->z(), event->modifiers(), event->uniqueId(), event->button(), event->buttons());
ev.setTimestamp(event->timestamp());
QGuiApplication::sendSpontaneousEvent(qt_tablet_target, &ev);
}
if (event->type() == QEvent::TabletRelease)
qt_tablet_target = 0;
}
#endif // QT_NO_TABLETEVENT
#ifndef QT_NO_GESTURES
void QWidgetWindow::handleGestureEvent(QNativeGestureEvent *e)
{
// copy-pasted code to find correct widget follows:
QObject *receiver = 0;
if (QApplicationPrivate::inPopupMode()) {
QWidget *popup = QApplication::activePopupWidget();
QWidget *popupFocusWidget = popup->focusWidget();
receiver = popupFocusWidget ? popupFocusWidget : popup;
}
if (!receiver)
receiver = QApplication::widgetAt(e->globalPos());
if (!receiver)
receiver = m_widget; // last resort
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QApplication::sendSpontaneousEvent(receiver, e);
}
#endif // QT_NO_GESTURES
#ifndef QT_NO_CONTEXTMENU
void QWidgetWindow::handleContextMenuEvent(QContextMenuEvent *e)
{
// We are only interested in keyboard originating context menu events here,
// mouse originated context menu events for widgets are generated in mouse handling methods.
if (e->reason() != QContextMenuEvent::Keyboard)
return;
QWidget *fw = QWidget::keyboardGrabber();
if (!fw) {
if (QApplication::activePopupWidget()) {
fw = (QApplication::activePopupWidget()->focusWidget()
? QApplication::activePopupWidget()->focusWidget()
: QApplication::activePopupWidget());
} else if (QApplication::focusWidget()) {
fw = QApplication::focusWidget();
} else {
fw = m_widget;
}
}
if (fw && fw->isEnabled()) {
QPoint pos = fw->inputMethodQuery(Qt::ImMicroFocus).toRect().center();
QContextMenuEvent widgetEvent(QContextMenuEvent::Keyboard, pos, fw->mapToGlobal(pos),
e->modifiers());
QGuiApplication::sendSpontaneousEvent(fw, &widgetEvent);
}
}
#endif // QT_NO_CONTEXTMENU
void QWidgetWindow::updateObjectName()
{
QString name = m_widget->objectName();
if (name.isEmpty())
name = QString::fromUtf8(m_widget->metaObject()->className()) + QStringLiteral("Class");
name += QStringLiteral("Window");
setObjectName(name);
}
QT_END_NAMESPACE