kwin/tabbox/declarative.cpp
2013-07-24 09:58:42 +02:00

439 lines
16 KiB
C++

/********************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 2011 Martin Gräßlin <mgraesslin@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, see <http://www.gnu.org/licenses/>.
*********************************************************************/
// own
#include "declarative.h"
#include "tabboxhandler.h"
#include "clientmodel.h"
// Qt
#include <QtDeclarative/qdeclarative.h>
#include <QtDeclarative/QDeclarativeContext>
#include <QtDeclarative/QDeclarativeEngine>
#include <QDesktopWidget>
#include <QGraphicsObject>
#include <QtGui/QResizeEvent>
#include <QX11Info>
// include KDE
#include <KDE/KDebug>
#include <KDE/KGlobal>
#include <KDE/KIconEffect>
#include <KDE/KIconLoader>
#include <KDE/KServiceTypeTrader>
#include <KDE/KStandardDirs>
#include <KDE/Plasma/FrameSvg>
#include <KDE/Plasma/Theme>
#include <kwindoweffects.h>
#include <kdeclarative.h>
// KWin
#include "thumbnailitem.h"
#include <kwindowsystem.h>
#include "../effects.h"
#include "../client.h"
#include "../workspace.h"
namespace KWin
{
namespace TabBox
{
ImageProvider::ImageProvider(QAbstractItemModel *model)
: QDeclarativeImageProvider(QDeclarativeImageProvider::Pixmap)
, m_model(model)
{
}
QPixmap ImageProvider::requestPixmap(const QString &id, QSize *size, const QSize &requestedSize)
{
bool ok = false;
QStringList parts = id.split(QStringLiteral("/"));
const int row = parts.first().toInt(&ok);
if (!ok) {
return QPixmap();
}
QModelIndex parentIndex;
const int parentRow = parts.at(1).toInt(&ok);
if (ok) {
// we have parent index
parentIndex = m_model->index(parentRow, 0);
if (!parentIndex.isValid()) {
return QPixmap();
}
}
const QModelIndex index = m_model->index(row, 0, parentIndex);
if (!index.isValid()) {
return QPixmap();
}
TabBoxClient* client = static_cast< TabBoxClient* >(index.model()->data(index, ClientModel::ClientRole).value<void *>());
if (!client) {
return QPixmap();
}
QSize s(32, 32);
if (requestedSize.isValid()) {
s = requestedSize;
}
*size = s;
QPixmap icon = client->icon(s);
if (s.width() > icon.width() || s.height() > icon.height()) {
// icon is smaller than what we requested - QML would scale it which looks bad
QPixmap temp(s);
temp.fill(Qt::transparent);
QPainter p(&temp);
p.drawPixmap(s.width()/2 - icon.width()/2, s.height()/2 - icon.height()/2, icon);
icon = temp;
}
if (parts.size() > 2) {
KIconEffect *effect = KIconLoader::global()->iconEffect();
KIconLoader::States state = KIconLoader::DefaultState;
if (parts.last() == QLatin1String("selected")) {
state = KIconLoader::ActiveState;
} else if (parts.last() == QLatin1String("disabled")) {
state = KIconLoader::DisabledState;
}
icon = effect->apply(icon, KIconLoader::Desktop, state);
}
return icon;
}
DeclarativeView::DeclarativeView(QAbstractItemModel *model, TabBoxConfig::TabBoxMode mode, QWidget *parent)
: QDeclarativeView(parent)
, m_model(model)
, m_mode(mode)
, m_currentScreenGeometry()
, m_frame(new Plasma::FrameSvg(this))
, m_currentLayout()
, m_cachedWidth(0)
, m_cachedHeight(0)
{
setAttribute(Qt::WA_TranslucentBackground);
setWindowFlags(Qt::X11BypassWindowManagerHint);
if (tabBox->embedded()) {
setResizeMode(QDeclarativeView::SizeRootObjectToView);
} else {
setResizeMode(QDeclarativeView::SizeViewToRootObject);
}
QPalette pal = palette();
pal.setColor(backgroundRole(), Qt::transparent);
setPalette(pal);
engine()->addImageProvider(QLatin1String("client"), new ImageProvider(model));
#warning TabBox needs porting of KDeclarative
#if KWIN_QT5_PORTING
KDeclarative kdeclarative;
kdeclarative.setDeclarativeEngine(engine());
kdeclarative.initialize();
kdeclarative.setupBindings();
#endif
#ifndef TABBOX_KCM
qmlRegisterType<DesktopThumbnailItem>("org.kde.kwin", 0, 1, "DesktopThumbnailItem");
#endif
qmlRegisterType<WindowThumbnailItem>("org.kde.kwin", 0, 1, "ThumbnailItem");
rootContext()->setContextProperty(QStringLiteral("viewId"), static_cast<qulonglong>(winId()));
if (m_mode == TabBoxConfig::ClientTabBox) {
rootContext()->setContextProperty(QStringLiteral("clientModel"), model);
} else if (m_mode == TabBoxConfig::DesktopTabBox) {
rootContext()->setContextProperty(QStringLiteral("clientModel"), model);
}
setSource(QUrl(KStandardDirs::locate("data", QLatin1String(KWIN_NAME) + QLatin1String("/tabbox/tabbox.qml"))));
// FrameSvg
m_frame->setImagePath(QStringLiteral("dialogs/background"));
m_frame->setCacheAllRenderedFrames(true);
m_frame->setEnabledBorders(Plasma::FrameSvg::AllBorders);
connect(tabBox, SIGNAL(configChanged()), SLOT(updateQmlSource()));
if (m_mode == TabBoxConfig::ClientTabBox) {
connect(tabBox, SIGNAL(embeddedChanged(bool)), SLOT(slotEmbeddedChanged(bool)));
}
}
void DeclarativeView::showEvent(QShowEvent *event)
{
#ifndef TABBOX_KCM
if (tabBox->embedded()) {
Client *c = Workspace::self()->findClient(WindowMatchPredicate(tabBox->embedded()));
if (c) {
connect(c, SIGNAL(geometryChanged()), this, SLOT(slotUpdateGeometry()));
}
}
#endif
updateQmlSource();
m_currentScreenGeometry = QApplication::desktop()->screenGeometry(tabBox->activeScreen());
rootObject()->setProperty("screenWidth", m_currentScreenGeometry.width());
rootObject()->setProperty("screenHeight", m_currentScreenGeometry.height());
rootObject()->setProperty("allDesktops", tabBox->config().tabBoxMode() == TabBoxConfig::ClientTabBox &&
tabBox->config().clientDesktopMode() == TabBoxConfig::AllDesktopsClients);
if (ClientModel *clientModel = qobject_cast<ClientModel*>(m_model)) {
rootObject()->setProperty("longestCaption", clientModel->longestCaption());
}
if (QObject *item = rootObject()->findChild<QObject*>(QStringLiteral("listView"))) {
item->setProperty("currentIndex", tabBox->first().row());
connect(item, SIGNAL(currentIndexChanged(int)), SLOT(currentIndexChanged(int)));
}
slotUpdateGeometry();
QResizeEvent re(size(), size()); // to set mask and blurring.
resizeEvent(&re);
QGraphicsView::showEvent(event);
}
void DeclarativeView::resizeEvent(QResizeEvent *event)
{
if (tabBox->embedded()) {
KWindowEffects::enableBlurBehind(winId(), false);
} else {
const QString maskImagePath = rootObject()->property("maskImagePath").toString();
if (maskImagePath.isEmpty()) {
clearMask();
KWindowEffects::enableBlurBehind(winId(), false);
} else {
const double maskWidth = rootObject()->property("maskWidth").toDouble();
const double maskHeight = rootObject()->property("maskHeight").toDouble();
const int maskTopMargin = rootObject()->property("maskTopMargin").toInt();
const int maskLeftMargin = rootObject()->property("maskLeftMargin").toInt();
m_frame->setImagePath(maskImagePath);
m_frame->resizeFrame(QSizeF(maskWidth, maskHeight));
QRegion mask = m_frame->mask().translated(maskLeftMargin, maskTopMargin);
#ifndef TABBOX_KCM
// notice: this covers an issue with plasma detecting the compositing state. see plasmaThemeVariant()
if (Workspace::self()->compositing() && effects) {
// blur background?!
KWindowEffects::enableBlurBehind(winId(), static_cast<EffectsHandlerImpl*>(effects)->provides(Effect::Blur), mask);
clearMask();
} else
#endif
{
// do not trim to mask with compositing enabled, otherwise shadows are cropped
setMask(mask);
}
}
}
QDeclarativeView::resizeEvent(event);
}
void DeclarativeView::hideEvent(QHideEvent *event)
{
QWidget::hideEvent(event);
#ifndef TABBOX_KCM
if (tabBox->embedded()) {
Client *c = Workspace::self()->findClient(WindowMatchPredicate(tabBox->embedded()));
if (c) {
disconnect(c, SIGNAL(geometryChanged()), this, SLOT(slotUpdateGeometry()));
}
}
#endif
}
#if KWIN_QT5_PORTING
bool DeclarativeView::x11Event(XEvent *e)
{
if (tabBox->embedded() &&
(e->type == ButtonPress || e->type == ButtonRelease || e->type == MotionNotify)) {
XEvent ev;
memcpy(&ev, e, sizeof(ev));
if (e->type == ButtonPress || e->type == ButtonRelease) {
ev.xbutton.x += m_relativePos.x();
ev.xbutton.y += m_relativePos.y();
ev.xbutton.window = tabBox->embedded();
} else if (e->type == MotionNotify) {
ev.xmotion.x += m_relativePos.x();
ev.xmotion.y += m_relativePos.y();
ev.xmotion.window = tabBox->embedded();
}
XSendEvent( QX11Info::display(), tabBox->embedded(), False, NoEventMask, &ev );
}
return QDeclarativeView::x11Event(e);
}
#endif
void DeclarativeView::slotUpdateGeometry()
{
const WId embeddedId = tabBox->embedded();
if (embeddedId != 0) {
const KWindowInfo info = KWindowSystem::windowInfo(embeddedId, NET::WMGeometry);
const Qt::Alignment alignment = tabBox->embeddedAlignment();
const QPoint offset = tabBox->embeddedOffset();
int x = info.geometry().left();
int y = info.geometry().top();
int width = tabBox->embeddedSize().width();
int height = tabBox->embeddedSize().height();
if (alignment.testFlag(Qt::AlignLeft) || alignment.testFlag(Qt::AlignHCenter)) {
x += offset.x();
}
if (alignment.testFlag(Qt::AlignRight)) {
x = x + info.geometry().width() - offset.x() - width;
}
if (alignment.testFlag(Qt::AlignHCenter)) {
width = info.geometry().width() - 2 * offset.x();
}
if (alignment.testFlag(Qt::AlignTop) || alignment.testFlag(Qt::AlignVCenter)) {
y += offset.y();
}
if (alignment.testFlag(Qt::AlignBottom)) {
y = y + info.geometry().height() - offset.y() - height;
}
if (alignment.testFlag(Qt::AlignVCenter)) {
height = info.geometry().height() - 2 * offset.y();
}
setGeometry(QRect(x, y, width, height));
m_relativePos = QPoint(info.geometry().x(), info.geometry().x());
} else {
const int width = rootObject()->property("width").toInt();
const int height = rootObject()->property("height").toInt();
setGeometry(m_currentScreenGeometry.x() + static_cast<qreal>(m_currentScreenGeometry.width()) * 0.5 - static_cast<qreal>(width) * 0.5,
m_currentScreenGeometry.y() + static_cast<qreal>(m_currentScreenGeometry.height()) * 0.5 - static_cast<qreal>(height) * 0.5,
width, height);
m_relativePos = pos();
}
}
void DeclarativeView::setCurrentIndex(const QModelIndex &index, bool disableAnimation)
{
if (tabBox->config().tabBoxMode() != m_mode) {
return;
}
if (QObject *item = rootObject()->findChild<QObject*>(QStringLiteral("listView"))) {
QVariant durationRestore;
if (disableAnimation) {
durationRestore = item->property("highlightMoveDuration");
item->setProperty("highlightMoveDuration", QVariant(1));
}
item->setProperty("currentIndex", index.row());
if (disableAnimation) {
item->setProperty("highlightMoveDuration", durationRestore);
}
}
}
void DeclarativeView::currentIndexChanged(int row)
{
tabBox->setCurrentIndex(m_model->index(row, 0));
KWindowSystem::forceActiveWindow(m_model->data(m_model->index(row, 0), ClientModel::WIdRole).toLongLong());
}
void DeclarativeView::updateQmlSource(bool force)
{
if (tabBox->config().tabBoxMode() != m_mode) {
return;
}
if (!force && tabBox->config().layoutName() == m_currentLayout) {
return;
}
const bool desktopMode = (m_mode == TabBoxConfig::DesktopTabBox);
m_currentLayout = tabBox->config().layoutName();
KService::Ptr service = desktopMode ? findDesktopSwitcher() : findWindowSwitcher();
if (service.isNull()) {
return;
}
if (service->property(QStringLiteral("X-Plasma-API")).toString() != QStringLiteral("declarativeappletscript")) {
kDebug(1212) << "Window Switcher Layout is no declarativeappletscript";
return;
}
const QString file = desktopMode ? findDesktopSwitcherScriptFile(service) : findWindowSwitcherScriptFile(service);
if (file.isNull()) {
kDebug(1212) << "Could not find QML file for window switcher";
return;
}
rootObject()->setProperty("source", QUrl(file));
}
KService::Ptr DeclarativeView::findWindowSwitcher()
{
QString constraint = QStringLiteral("[X-KDE-PluginInfo-Name] == '%1'").arg(tabBox->config().layoutName());
KService::List offers = KServiceTypeTrader::self()->query(QStringLiteral("KWin/WindowSwitcher"), constraint);
if (offers.isEmpty()) {
// load default
constraint = QStringLiteral("[X-KDE-PluginInfo-Name] == '%1'").arg(QStringLiteral("informative"));
offers = KServiceTypeTrader::self()->query(QStringLiteral("KWin/WindowSwitcher"), constraint);
if (offers.isEmpty()) {
kDebug(1212) << "could not find default window switcher layout";
return KService::Ptr();
}
}
return offers.first();
}
KService::Ptr DeclarativeView::findDesktopSwitcher()
{
QString constraint = QStringLiteral("[X-KDE-PluginInfo-Name] == '%1'").arg(tabBox->config().layoutName());
KService::List offers = KServiceTypeTrader::self()->query(QStringLiteral("KWin/DesktopSwitcher"), constraint);
if (offers.isEmpty()) {
// load default
constraint = QStringLiteral("[X-KDE-PluginInfo-Name] == '%1'").arg(QStringLiteral("informative"));
offers = KServiceTypeTrader::self()->query(QStringLiteral("KWin/DesktopSwitcher"), constraint);
if (offers.isEmpty()) {
kDebug(1212) << "could not find default desktop switcher layout";
return KService::Ptr();
}
}
return offers.first();
}
QString DeclarativeView::findWindowSwitcherScriptFile(KService::Ptr service)
{
const QString pluginName = service->property(QStringLiteral("X-KDE-PluginInfo-Name")).toString();
const QString scriptName = service->property(QStringLiteral("X-Plasma-MainScript")).toString();
return KStandardDirs::locate("data", QStringLiteral(KWIN_NAME) + QStringLiteral("/tabbox/") + pluginName + QStringLiteral("/contents/") + scriptName);
}
QString DeclarativeView::findDesktopSwitcherScriptFile(KService::Ptr service)
{
const QString pluginName = service->property(QStringLiteral("X-KDE-PluginInfo-Name")).toString();
const QString scriptName = service->property(QStringLiteral("X-Plasma-MainScript")).toString();
return KStandardDirs::locate("data", QStringLiteral(KWIN_NAME) + QStringLiteral("/desktoptabbox/") + pluginName + QStringLiteral("/contents/") + scriptName);
}
void DeclarativeView::slotEmbeddedChanged(bool enabled)
{
if (enabled) {
// cache the width
setResizeMode(QDeclarativeView::SizeRootObjectToView);
m_cachedWidth = rootObject()->property("width").toInt();
m_cachedHeight = rootObject()->property("height").toInt();
} else {
setResizeMode(QDeclarativeView::SizeViewToRootObject);
if (m_cachedWidth != 0 && m_cachedHeight != 0) {
rootObject()->setProperty("width", m_cachedWidth);
rootObject()->setProperty("height", m_cachedHeight);
}
updateQmlSource(true);
}
}
void DeclarativeView::slotWindowChanged(WId wId, unsigned int properties)
{
if (wId != tabBox->embedded()) {
return;
}
if (properties & NET::WMGeometry) {
slotUpdateGeometry();
}
}
bool DeclarativeView::sendKeyEvent(QKeyEvent *e)
{
return event(e);
}
} // namespace TabBox
} // namespace KWin