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authorGabriel de Dietrich <gabriel.dedietrich@digia.com>2013-10-17 15:59:06 +0200
committerThe Qt Project <gerrit-noreply@qt-project.org>2013-10-18 13:43:54 +0200
commit8480dcbc7180cf1bcafcd03a6ad7087c83582a97 (patch)
tree98801a16b130666dadaebb615c6351c6b5685b6d /src/controls/qquickpopupwindow.cpp
parent12a49a3c0c38b7ac5599c7b421573721750d62f5 (diff)
Menu: Extract QQuickMenuPopupWindow core popup behavior
... and put it in QQuickPopupWindow. Change-Id: I6920f5c13904483310faae990c7199db9f1c4708 Reviewed-by: J-P Nurmi <jpnurmi@digia.com>
Diffstat (limited to 'src/controls/qquickpopupwindow.cpp')
-rw-r--r--src/controls/qquickpopupwindow.cpp203
1 files changed, 203 insertions, 0 deletions
diff --git a/src/controls/qquickpopupwindow.cpp b/src/controls/qquickpopupwindow.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the Qt Quick Controls 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 "qquickpopupwindow_p.h"
+
+#include <qguiapplication.h>
+#include <qpa/qwindowsysteminterface.h>
+#include <QtQuick/qquickitem.h>
+
+QT_BEGIN_NAMESPACE
+
+QQuickPopupWindow::QQuickPopupWindow() :
+ QQuickWindow(), m_parentItem(0), m_contentItem(0),
+ m_mouseMoved(false), m_needsActivatedEvent(true),
+ m_dismissed(false)
+{
+ setFlags(Qt::Popup);
+ setModality(Qt::ApplicationModal);
+}
+
+void QQuickPopupWindow::show()
+{
+ qreal posx = x();
+ qreal posy = y();
+ if (QQuickWindow *parentWindow = qobject_cast<QQuickWindow *>(transientParent())) {
+ if (m_parentItem) {
+ QPointF pos = m_parentItem->mapToItem(parentWindow->contentItem(), QPointF(posx, posy));
+ posx = pos.x();
+ posy = pos.y();
+ }
+
+ if (parentWindow->parent()) {
+ // If the parent window is embedded in another window, the offset needs to be relative to
+ // its top-level window container, or to global coordinates, which is the same in the end.
+ QPoint parentWindowOffset = parentWindow->mapToGlobal(QPoint());
+ posx += parentWindowOffset.x();
+ posy += parentWindowOffset.y();
+ } else {
+ posx += parentWindow->geometry().left();
+ posy += parentWindow->geometry().top();
+ }
+ }
+
+ if (m_contentItem) {
+ qreal initialWidth = qMax(qreal(1), m_contentItem->width());
+ qreal initialHeight = qMax(qreal(1), m_contentItem->height());
+ setGeometry(posx, posy, initialWidth, initialHeight);
+ } else {
+ setPosition(posx, posy);
+ }
+
+ if (!qobject_cast<QQuickPopupWindow *>(transientParent())) // No need for parent menu windows
+ if (QQuickWindow *w = qobject_cast<QQuickWindow *>(transientParent()))
+ if (QQuickItem *mg = w->mouseGrabberItem())
+ mg->ungrabMouse();
+
+ QQuickWindow::show();
+ setMouseGrabEnabled(true); // Needs to be done after calling show()
+ setKeyboardGrabEnabled(true);
+}
+
+void QQuickPopupWindow::setParentItem(QQuickItem *item)
+{
+ m_parentItem = item;
+ if (m_parentItem)
+ setTransientParent(m_parentItem->window());
+}
+
+void QQuickPopupWindow::setPopupContentItem(QQuickItem *contentItem)
+{
+ if (!contentItem)
+ return;
+
+ contentItem->setParentItem(this->contentItem());
+ connect(contentItem, SIGNAL(widthChanged()), this, SLOT(updateSize()));
+ connect(contentItem, SIGNAL(heightChanged()), this, SLOT(updateSize()));
+ m_contentItem = contentItem;
+}
+
+void QQuickPopupWindow::updateSize()
+{
+ QSize contentSize = popupContentItem()->childrenRect().size().toSize();
+ setGeometry(x(), y(), contentSize.width(), contentSize.height());
+}
+
+void QQuickPopupWindow::dismissPopup()
+{
+ m_dismissed = true;
+ emit popupDismissed();
+ close();
+}
+
+void QQuickPopupWindow::mouseMoveEvent(QMouseEvent *e)
+{
+ QRect rect = QRect(QPoint(), size());
+ m_mouseMoved = true;
+ if (rect.contains(e->pos()))
+ QQuickWindow::mouseMoveEvent(e);
+ else
+ forwardEventToTransientParent(e);
+}
+
+void QQuickPopupWindow::mousePressEvent(QMouseEvent *e)
+{
+ QRect rect = QRect(QPoint(), size());
+ if (rect.contains(e->pos()))
+ QQuickWindow::mousePressEvent(e);
+ else
+ forwardEventToTransientParent(e);
+}
+
+void QQuickPopupWindow::mouseReleaseEvent(QMouseEvent *e)
+{
+ QRect rect = QRect(QPoint(), size());
+ if (rect.contains(e->pos())) {
+ if (m_mouseMoved) {
+ QMouseEvent pe = QMouseEvent(QEvent::MouseButtonPress, e->pos(), e->button(), e->buttons(), e->modifiers());
+ QQuickWindow::mousePressEvent(&pe);
+ if (!m_dismissed)
+ QQuickWindow::mouseReleaseEvent(e);
+ }
+ m_mouseMoved = true; // Initial mouse release counts as move.
+ } else {
+ forwardEventToTransientParent(e);
+ }
+}
+
+void QQuickPopupWindow::forwardEventToTransientParent(QMouseEvent *e)
+{
+ if (!qobject_cast<QQuickPopupWindow*>(transientParent())
+ && ((m_mouseMoved && e->type() == QEvent::MouseButtonRelease)
+ || e->type() == QEvent::MouseButtonPress)) {
+ // Clicked outside any popup
+ dismissPopup();
+ } else if (transientParent()) {
+ QPoint parentPos = transientParent()->mapFromGlobal(mapToGlobal(e->pos()));
+ QMouseEvent pe = QMouseEvent(e->type(), parentPos, e->button(), e->buttons(), e->modifiers());
+ QGuiApplication::sendEvent(transientParent(), &pe);
+ }
+}
+
+void QQuickPopupWindow::exposeEvent(QExposeEvent *e)
+{
+ if (isExposed() && m_needsActivatedEvent) {
+ m_needsActivatedEvent = false;
+ QWindowSystemInterface::handleWindowActivated(this, Qt::PopupFocusReason);
+ } else if (!isExposed() && !m_needsActivatedEvent) {
+ m_needsActivatedEvent = true;
+ if (QWindow *tp = transientParent())
+ QWindowSystemInterface::handleWindowActivated(tp, Qt::PopupFocusReason);
+ }
+ QQuickWindow::exposeEvent(e);
+}
+
+void QQuickPopupWindow::hideEvent(QHideEvent *e)
+{
+ if (QWindow *tp = !m_needsActivatedEvent ? transientParent() : 0) {
+ m_needsActivatedEvent = true;
+ QWindowSystemInterface::handleWindowActivated(tp, Qt::PopupFocusReason);
+ }
+
+ QQuickWindow::hideEvent(e);
+}
+
+QT_END_NAMESPACE
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