1 files changed, 592 insertions, 0 deletions
diff --git a/src/widgets/kernel/qwidgetwindow.cpp b/src/widgets/kernel/qwidgetwindow.cpp
new file mode 100644
index 0000000000..1b076d1801
--- /dev/null
+++ b/src/widgets/kernel/qwidgetwindow.cpp
@@ -0,0 +1,592 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** 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, Nokia gives you certain additional
+** rights. These rights are described in the Nokia 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.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qwidgetwindow_qpa_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>
+
+QT_BEGIN_NAMESPACE
+
+QWidget *qt_button_down = 0; // widget got last button-down
+static QWidget *qt_tablet_target = 0;
+
+// popup control
+QWidget *qt_popup_down = 0; // popup that contains the pressed widget
+extern int openPopupCount;
+bool qt_replay_popup_mouse_event = false;
+extern bool qt_try_modal(QWidget *widget, QEvent::Type type);
+
+QWidgetWindow::QWidgetWindow(QWidget *widget)
+    : m_widget(widget)
+{
+    updateObjectName();
+    connect(m_widget, &QObject::objectNameChanged, this, &QWidgetWindow::updateObjectName);
+}
+
+#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;
+
+    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:
+    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;
+
+    case QEvent::Wheel:
+        handleWheelEvent(static_cast<QWheelEvent *>(event));
+        return true;
+
+#ifndef QT_NO_DRAGANDDROP
+    case QEvent::DragEnter:
+    case QEvent::DragLeave:
+    case QEvent::DragMove:
+    case QEvent::Drop:
+        handleDragEvent(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
+
+    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 *leave = qt_last_mouse_receiver ? qt_last_mouse_receiver.data() : m_widget;
+        QApplicationPrivate::dispatchEnterLeave(0, leave);
+        qt_last_mouse_receiver = 0;
+    } else {
+        QApplicationPrivate::dispatchEnterLeave(m_widget, 0);
+        qt_last_mouse_receiver = m_widget;
+    }
+}
+
+void QWidgetWindow::handleNonClientAreaMouseEvent(QMouseEvent *e)
+{
+    QApplication::sendSpontaneousEvent(m_widget, e);
+}
+
+void QWidgetWindow::handleMouseEvent(QMouseEvent *event)
+{
+    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());
+            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:
+                break;
+            }
+        }
+
+        if (qApp->activePopupWidget() != activePopupWidget
+            && qt_replay_popup_mouse_event) {
+            if (m_widget->windowType() != Qt::Popup)
+                qt_button_down = 0;
+            qt_replay_popup_mouse_event = false;
+#ifndef QT_NO_CONTEXTMENU
+        } else if (event->type() == QEvent::MouseButtonPress
+                   && 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)
+        qt_button_down = widget;
+
+    QWidget *receiver = QApplicationPrivate::pickMouseReceiver(m_widget, event->windowPos().toPoint(), &mapped, event->type(), event->buttons(),
+                                                               qt_button_down, widget);
+
+    if (!receiver) {
+        if (event->type() == QEvent::MouseButtonRelease)
+            QApplicationPrivate::mouse_buttons &= ~event->button();
+        return;
+    }
+
+    QMouseEvent translated(event->type(), mapped, event->windowPos(), event->screenPos(), event->button(), event->buttons(), event->modifiers());
+    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() == QEvent::MouseButtonPress && 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());
+    else
+        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 = 0;
+    if (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;
+}
+
+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();
+    }
+}
+
+void QWidgetWindow::handleCloseEvent(QCloseEvent *)
+{
+    m_widget->d_func()->close_helper(QWidgetPrivate::CloseWithSpontaneousEvent);
+}
+
+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());
+    QGuiApplication::sendSpontaneousEvent(widget, &translated);
+}
+
+#ifndef QT_NO_DRAGANDDROP
+
+void QWidgetWindow::handleDragEvent(QEvent *event)
+{
+    switch (event->type()) {
+    case QEvent::DragEnter:
+        Q_ASSERT(!m_dragTarget);
+        // fall through
+    case QEvent::DragMove:
+    {
+        QDragMoveEvent *de = static_cast<QDragMoveEvent *>(event);
+        QWidget *widget = m_widget->childAt(de->pos());
+        if (!widget)
+            widget = m_widget;
+
+        if (widget != m_dragTarget.data()) {
+            if (m_dragTarget.data()) {
+                QDragLeaveEvent le;
+                QGuiApplication::sendSpontaneousEvent(m_dragTarget.data(), &le);
+            }
+            m_dragTarget = widget;
+            QPoint mapped = widget->mapFrom(m_widget, de->pos());
+            QDragEnterEvent translated(mapped, de->possibleActions(), de->mimeData(), de->mouseButtons(), de->keyboardModifiers());
+            QGuiApplication::sendSpontaneousEvent(widget, &translated);
+            if (translated.isAccepted())
+                event->accept();
+            de->setDropAction(translated.dropAction());
+        } else {
+            Q_ASSERT(event->type() == QEvent::DragMove);
+            QPoint mapped = widget->mapFrom(m_widget, de->pos());
+            QDragMoveEvent translated(mapped, de->possibleActions(), de->mimeData(), de->mouseButtons(), de->keyboardModifiers());
+            translated.setDropAction(de->dropAction());
+            QGuiApplication::sendSpontaneousEvent(widget, &translated);
+            if (translated.isAccepted())
+                event->accept();
+            de->setDropAction(translated.dropAction());
+        }
+        break;
+    }
+    case QEvent::DragLeave:
+        if (m_dragTarget)
+            QGuiApplication::sendSpontaneousEvent(m_dragTarget.data(), event);
+        m_dragTarget = (QWidget *)0;
+        break;
+    case QEvent::Drop:
+    {
+        QDropEvent *de = static_cast<QDropEvent *>(event);
+        QPoint mapped = m_dragTarget.data()->mapFrom(m_widget, de->pos());
+        QDropEvent translated(mapped, de->possibleActions(), de->mimeData(), de->mouseButtons(), de->keyboardModifiers());
+        QGuiApplication::sendSpontaneousEvent(m_dragTarget.data(), &translated);
+        if (translated.isAccepted())
+            event->accept();
+        de->setDropAction(translated.dropAction());
+        m_dragTarget = (QWidget *)0;
+    }
+    default:
+        break;
+    }
+}
+
+#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->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);
+    }
+}
+
+Qt::WindowState effectiveState(Qt::WindowStates state);
+
+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:
+        widgetState |= Qt::WindowMinimized;
+        break;
+    case Qt::WindowMaximized:
+        if (effectiveState(widgetState) == Qt::WindowNoState)
+            if (QTLWExtra *tle = m_widget->d_func()->maybeTopData())
+                tle->normalGeometry = m_widget->geometry();
+        widgetState &= ~Qt::WindowFullScreen;
+        widgetState |= Qt::WindowMaximized;
+        break;
+    case Qt::WindowFullScreen:
+        if (effectiveState(widgetState) == Qt::WindowNoState)
+            if (QTLWExtra *tle = m_widget->d_func()->maybeTopData())
+                tle->normalGeometry = m_widget->geometry();
+        widgetState &= ~Qt::WindowMaximized;
+        widgetState |= Qt::WindowFullScreen;
+        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());
+        ev.setTimestamp(event->timestamp());
+        QGuiApplication::sendSpontaneousEvent(qt_tablet_target, &ev);
+    }
+
+    if (event->type() == QEvent::TabletRelease)
+        qt_tablet_target = 0;
+}
+#endif // QT_NO_TABLETEVENT
+
+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