plasma-framework/declarativeimports/plasmacomponents/fullscreendialog.cpp
2012-01-18 14:23:08 +01:00

364 lines
12 KiB
C++

/***************************************************************************
* Copyright 2012 Marco Martin <mart@kde.org> *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA . *
***************************************************************************/
#include "fullscreendialog.h"
#include "../core/declarativeitemcontainer_p.h"
#include "plasmacomponentsplugin.h"
#include <QApplication>
#include <QDeclarativeItem>
#include <QDeclarativeContext>
#include <QGraphicsObject>
#include <QGraphicsScene>
#include <QGraphicsView>
#include <QGraphicsWidget>
#include <QLayout>
#include <QTimer>
#include <QDesktopWidget>
#include <QFile>
#include <KWindowSystem>
#include <KStandardDirs>
#include <Plasma/Corona>
#include <Plasma/WindowEffects>
uint FullScreenDialog::s_numItems = 0;
class Background : public QWidget
{
public:
Background(FullScreenDialog *dialog)
: QWidget( 0L ),
m_dialog(dialog)
{
setAttribute( Qt::WA_NoSystemBackground );
setAttribute( Qt::WA_TranslucentBackground );
setWindowFlags(Qt::FramelessWindowHint | Qt::CustomizeWindowHint);
KWindowSystem::setOnAllDesktops(winId(), true);
unsigned long state = NET::Sticky | NET::StaysOnTop | NET::KeepAbove | NET::SkipTaskbar | NET::SkipPager | NET::MaxVert | NET::MaxHoriz;
KWindowSystem::setState(effectiveWinId(), state);
}
~Background()
{}
void paintEvent( QPaintEvent *e )
{
QPainter painter( this );
painter.setCompositionMode(QPainter::CompositionMode_Source);
painter.fillRect(e->rect(), QColor(0, 0, 0, 80));
}
void mousePressEvent(QMouseEvent *event)
{
event->accept();
m_dialog->view()->winId();
KWindowSystem::forceActiveWindow(m_dialog->view()->winId());
}
void mouseReleaseEvent(QMouseEvent *event)
{
if (!m_dialog->view()->geometry().contains(event->globalPos())) {
m_dialog->close();
}
}
private:
FullScreenDialog *m_dialog;
};
FullScreenDialog::FullScreenDialog(QDeclarativeItem *parent)
: QDeclarativeItem(parent),
m_declarativeItemContainer(0)
{
m_view = new QGraphicsView();
m_view->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
m_view->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
m_view->installEventFilter(this);
m_view->setAutoFillBackground(false);
m_view->viewport()->setAutoFillBackground(false);
m_view->setAttribute(Qt::WA_TranslucentBackground);
m_view->setAttribute(Qt::WA_NoSystemBackground);
m_view->viewport()->setAttribute(Qt::WA_NoSystemBackground);
m_view->setCacheMode(QGraphicsView::CacheNone);
m_view->setWindowFlags(Qt::FramelessWindowHint | Qt::CustomizeWindowHint);
m_view->setFrameShape(QFrame::NoFrame);
KWindowSystem::setOnAllDesktops(m_view->winId(), true);
unsigned long state = NET::Sticky | NET::StaysOnTop | NET::KeepAbove | NET::SkipTaskbar | NET::SkipPager;
KWindowSystem::setState(m_view->effectiveWinId(), state);
//Try to figure out the path of the dialog component
QString componentsPlatform = getenv("KDE_PLASMA_COMPONENTS_PLATFORM");
if (componentsPlatform.isEmpty()) {
KConfigGroup cg(KSharedConfig::openConfig("kdeclarativerc"), "Components-platform");
componentsPlatform = cg.readEntry("name", "desktop");
}
QString filePath;
if (componentsPlatform == "desktop") {
foreach(const QString &importPath, KGlobal::dirs()->findDirs("module", "imports/")) {
filePath = importPath % "org/kde/plasma/components/Dialog.qml";
QFile f(filePath);
if (f.exists()) {
break;
}
}
} else {
foreach(const QString &importPath, KGlobal::dirs()->findDirs("module", "platformimports/" % componentsPlatform)) {
filePath = importPath % "org/kde/plasma/components/Dialog.qml";
QFile f(filePath);
if (f.exists()) {
break;
}
}
}
QDeclarativeEngine *engine = EngineBookKeeping::self()->engineFor(this);
QDeclarativeComponent *component = new QDeclarativeComponent(engine, filePath, this);
QDeclarativeContext *creationContext = component->creationContext();
m_rootObject = component->create(creationContext);
if (component->status() == QDeclarativeComponent::Error) {
kWarning()<<component->errors();
}
if (m_rootObject) {
setMainItem(qobject_cast<QGraphicsObject *>(m_rootObject.data()));
connect(m_rootObject.data(), SIGNAL(statusChanged()), this, SLOT(statusHasChanged()));
connect(m_rootObject.data(), SIGNAL(accepted()), this, SIGNAL(accepted()));
connect(m_rootObject.data(), SIGNAL(rejected()), this, SIGNAL(rejected()));
connect(m_rootObject.data(), SIGNAL(clickedOutside()), this, SIGNAL(clickedOutside()));
}
m_background = new Background(this);
}
FullScreenDialog::~FullScreenDialog()
{
delete m_view;
}
QGraphicsObject *FullScreenDialog::mainItem() const
{
return m_mainItem.data();
}
void FullScreenDialog::setMainItem(QGraphicsObject *mainItem)
{
if (m_mainItem.data() != mainItem) {
if (m_mainItem) {
m_mainItem.data()->setParent(mainItem->parent());
m_mainItem.data()->removeEventFilter(this);
m_mainItem.data()->setY(0);
m_scene = 0;
}
m_mainItem = mainItem;
if (mainItem) {
mainItem->setParentItem(0);
mainItem->setParent(this);
m_scene = mainItem->scene();
}
mainItem->installEventFilter(this);
//if this is called in Compenent.onCompleted we have to wait a loop the item is added to a scene
QTimer::singleShot(0, this, SLOT(syncMainItem()));
}
}
void FullScreenDialog::syncMainItem()
{
if (!m_mainItem) {
return;
}
//not have a scene? go up in the hyerarchy until we find something with a scene
QGraphicsScene *scene = m_mainItem.data()->scene();
if (!scene) {
QObject *parent = m_mainItem.data();
while ((parent = parent->parent())) {
QGraphicsObject *qo = qobject_cast<QGraphicsObject *>(parent);
if (qo) {
scene = qo->scene();
if (scene) {
scene->addItem(m_mainItem.data());
++s_numItems;
Plasma::Corona *corona = qobject_cast<Plasma::Corona *>(scene);
QDeclarativeItem *di = qobject_cast<QDeclarativeItem *>(m_mainItem.data());
if (corona && di) {
if (!m_declarativeItemContainer) {
m_declarativeItemContainer = new DeclarativeItemContainer();
scene->addItem(m_declarativeItemContainer);
corona->addOffscreenWidget(m_declarativeItemContainer);
}
m_declarativeItemContainer->setDeclarativeItem(di);
} else {
m_mainItem.data()->setY(-10000*s_numItems);
m_mainItem.data()->setY(10000*s_numItems);
}
break;
}
}
}
}
if (!scene) {
return;
}
m_view->setScene(scene);
if (m_declarativeItemContainer) {
m_view->resize(m_declarativeItemContainer->size().toSize());
m_view->setSceneRect(m_declarativeItemContainer->geometry());
} else {
QRectF itemGeometry(QPointF(m_mainItem.data()->x(), m_mainItem.data()->y()),
QSizeF(m_mainItem.data()->boundingRect().size()));
m_view->resize(itemGeometry.size().toSize());
m_view->setSceneRect(itemGeometry);
}
m_view->move(QApplication::desktop()->availableGeometry().center() - QPoint(m_view->width()/2, m_view->height()/2));
}
bool FullScreenDialog::isVisible() const
{
return m_view->isVisible();
}
void FullScreenDialog::setVisible(const bool visible)
{
if (m_view->isVisible() != visible) {
m_background->setVisible(visible);
Plasma::WindowEffects::slideWindow(m_view->winId(), Plasma::BottomEdge, 0);
m_view->setVisible(visible);
unsigned long state = NET::Sticky | NET::StaysOnTop | NET::KeepAbove | NET::SkipTaskbar | NET::SkipPager;
KWindowSystem::setState(m_view->effectiveWinId(), state);
KWindowSystem::setState(m_background->effectiveWinId(), state);
if (visible) {
m_view->raise();
KWindowSystem::forceActiveWindow(m_view->effectiveWinId());
}
}
}
QGraphicsView *FullScreenDialog::view() const
{
return m_view;
}
QDeclarativeListProperty<QGraphicsObject> FullScreenDialog::title()
{
if (m_rootObject) {
return m_rootObject.data()->property("title").value<QDeclarativeListProperty<QGraphicsObject> >();
} else {
return QDeclarativeListProperty<QGraphicsObject>(this, m_dummyTitleElements);
}
}
QDeclarativeListProperty<QGraphicsObject> FullScreenDialog::content()
{
if (m_rootObject) {
return m_rootObject.data()->property("content").value<QDeclarativeListProperty<QGraphicsObject> >();
} else {
return QDeclarativeListProperty<QGraphicsObject>(this, m_dummyContentElements);
}
}
QDeclarativeListProperty<QGraphicsObject> FullScreenDialog::buttons()
{
if (m_rootObject) {
return m_rootObject.data()->property("buttons").value<QDeclarativeListProperty<QGraphicsObject> >();
} else {
return QDeclarativeListProperty<QGraphicsObject>(this, m_dummyButtonsElements);
}
}
DialogStatus::Status FullScreenDialog::status() const
{
if (m_rootObject) {
return (DialogStatus::Status)m_rootObject.data()->property("status").toInt();
} else {
return DialogStatus::Closed;
}
}
void FullScreenDialog::statusHasChanged()
{
if (status() == DialogStatus::Closed) {
setVisible(false);
} else {
setVisible(true);
}
emit statusChanged();
}
void FullScreenDialog::open()
{
if (m_rootObject) {
QMetaObject::invokeMethod(m_rootObject.data(), "open");
}
}
void FullScreenDialog::accept()
{
if (m_rootObject) {
QMetaObject::invokeMethod(m_rootObject.data(), "accept");
}
}
void FullScreenDialog::reject()
{
if (m_rootObject) {
QMetaObject::invokeMethod(m_rootObject.data(), "reject");
}
}
void FullScreenDialog::close()
{
if (m_rootObject) {
QMetaObject::invokeMethod(m_rootObject.data(), "close");
}
}
bool FullScreenDialog::eventFilter(QObject *watched, QEvent *event)
{
if (watched == m_mainItem.data() &&
(event->type() == QEvent::GraphicsSceneResize)) {
syncMainItem();
}
return false;
}
#include "fullscreendialog.moc"