738 lines
22 KiB
C++
738 lines
22 KiB
C++
/*
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* Copyright 2008 by Montel Laurent <montel@kde.org>
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* Copyright 2008 by Marco Martin <notmart@gmail.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301 USA
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*/
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#include "popupapplet.h"
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#include "private/popupapplet_p.h"
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#include <QApplication>
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#include <QGraphicsProxyWidget>
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#include <QGraphicsLinearLayout>
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#include <QTimer>
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#include <QVBoxLayout>
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#ifdef Q_WS_X11
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#include <QX11Info>
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#endif
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#include <kicon.h>
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#include <kiconloader.h>
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#include <kwindowsystem.h>
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#include <kglobalsettings.h>
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#include <netwm.h>
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#include "plasma/private/applet_p.h"
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#include "plasma/private/extenderitemmimedata_p.h"
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#include "plasma/corona.h"
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#include "plasma/containment.h"
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#include "plasma/dialog.h"
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#include "plasma/extenders/extender.h"
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#include "plasma/extenders/extenderitem.h"
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#include "plasma/tooltipmanager.h"
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#include "plasma/widgets/iconwidget.h"
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namespace Plasma
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{
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PopupApplet::PopupApplet(QObject *parent, const QVariantList &args)
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: Plasma::Applet(parent, args),
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d(new PopupAppletPrivate(this))
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{
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int iconSize = IconSize(KIconLoader::Desktop);
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resize(iconSize, iconSize);
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disconnect(this, SIGNAL(activate()), (Applet*)this, SLOT(setFocus()));
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connect(this, SIGNAL(activate()), this, SLOT(internalTogglePopup()));
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setAcceptDrops(true);
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}
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PopupApplet::~PopupApplet()
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{
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delete widget();
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delete d;
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}
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void PopupApplet::setPopupIcon(const QIcon &icon)
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{
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if (icon.isNull()) {
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if (d->icon) {
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delete d->icon;
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d->icon = 0;
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setLayout(0);
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setAspectRatioMode(d->savedAspectRatio);
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}
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return;
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}
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if (!d->icon) {
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d->icon = new Plasma::IconWidget(icon, QString(), this);
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connect(d->icon, SIGNAL(clicked()), this, SLOT(internalTogglePopup()));
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QGraphicsLinearLayout *layout = new QGraphicsLinearLayout();
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layout->setContentsMargins(0, 0, 0, 0);
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layout->setSpacing(0);
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layout->setOrientation(Qt::Horizontal);
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if (formFactor() == Plasma::Vertical || formFactor() == Plasma::Horizontal ) {
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d->savedAspectRatio = aspectRatioMode();
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setAspectRatioMode(Plasma::ConstrainedSquare);
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}
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setLayout(layout);
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} else {
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d->icon->setIcon(icon);
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}
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}
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void PopupApplet::setPopupIcon(const QString &iconName)
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{
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setPopupIcon(KIcon(iconName));
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}
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QIcon PopupApplet::popupIcon() const
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{
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return d->icon ? d->icon->icon() : QIcon();
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}
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QWidget *PopupApplet::widget()
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{
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return d->widget;
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}
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void PopupApplet::setWidget(QWidget * widget)
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{
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d->widget = widget;
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}
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QGraphicsWidget *PopupApplet::graphicsWidget()
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{
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if (d->graphicsWidget != 0) {
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return d->graphicsWidget;
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} else {
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return static_cast<Applet*>(this)->d->extender;
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}
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}
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void PopupApplet::setGraphicsWidget(QGraphicsWidget * graphicsWidget)
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{
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d->graphicsWidget = graphicsWidget;
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}
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void PopupAppletPrivate::checkExtenderAppearance(Plasma::FormFactor f)
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{
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Extender *extender = qobject_cast<Extender*>(q->graphicsWidget());
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if (extender) {
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if (f != Plasma::Horizontal && f != Plasma::Vertical) {
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extender->setAppearance(Extender::NoBorders);
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} else if (q->location() == TopEdge) {
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extender->setAppearance(Extender::TopDownStacked);
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} else {
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extender->setAppearance(Extender::BottomUpStacked);
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}
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if (dialog) {
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dialog->setGraphicsWidget(extender);
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}
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}
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}
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void PopupAppletPrivate::popupConstraintsEvent(Plasma::Constraints constraints)
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{
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Plasma::FormFactor f = q->formFactor();
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if (constraints & Plasma::LocationConstraint) {
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checkExtenderAppearance(f);
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}
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if (constraints & Plasma::FormFactorConstraint ||
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constraints & Plasma::StartupCompletedConstraint ||
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(constraints & Plasma::SizeConstraint &&
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(f == Plasma::Vertical || f == Plasma::Horizontal))) {
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QGraphicsLinearLayout *lay = dynamic_cast<QGraphicsLinearLayout *>(q->layout());
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if (icon && !icon->icon().isNull() && lay) {
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lay->removeAt(0);
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}
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QSizeF minimum;
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QSizeF parentSize;
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QGraphicsWidget *gWidget = q->graphicsWidget();
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//kDebug() << "graphics widget is" << (QObject*)gWidget;
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QWidget *qWidget = q->widget();
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if (gWidget) {
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minimum = gWidget->minimumSize();
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// our layout may have been replaced on us in the call to graphicsWidget!
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lay = dynamic_cast<QGraphicsLinearLayout *>(q->layout());
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if (!(constraints & LocationConstraint)) {
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checkExtenderAppearance(f);
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}
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} else if (qWidget) {
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minimum = qWidget->minimumSizeHint();
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}
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//99% of the times q->parentWidget() is the containment, but using it we can also manage the applet-in-applet case (i.e. systray)
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if (q->parentLayoutItem()) {
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parentSize = q->parentLayoutItem()->geometry().size();
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} else if (q->parentWidget()) {
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parentSize = q->parentWidget()->size();
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}
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//Applet on desktop
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if (icon && !icon->icon().isNull() && ((f != Plasma::Vertical && f != Plasma::Horizontal) ||
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((f == Plasma::Vertical && parentSize.width() >= minimum.width()) ||
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(f == Plasma::Horizontal && parentSize.height() >= minimum.height())))) {
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//kDebug() << "we are expanding the popupapplet";
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// we only switch to expanded if we aren't horiz/vert constrained and
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// this applet has an icon.
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// otherwise, we leave it up to the applet itself to figure it out
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if (icon) {
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icon->hide();
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}
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if (savedAspectRatio != Plasma::InvalidAspectRatioMode) {
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q->setAspectRatioMode(savedAspectRatio);
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}
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if (dialog) {
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if (dialog->layout() && qWidget) {
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//we don't want to delete Widget inside the dialog layout
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dialog->layout()->removeWidget(qWidget);
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}
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if (qWidget) {
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qWidget->setParent(0);
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}
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delete dialog;
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dialog = 0;
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}
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if (!lay) {
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lay = new QGraphicsLinearLayout();
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lay->setContentsMargins(0, 0, 0, 0);
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lay->setSpacing(0);
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lay->setOrientation(Qt::Horizontal);
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q->setLayout(lay);
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}
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QSize prefSize;
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if (gWidget) {
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if (proxy) {
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proxy->setWidget(0);
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delete proxy;
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proxy = 0;
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}
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Corona *corona = qobject_cast<Corona *>(gWidget->scene());
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if (corona) {
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corona->removeOffscreenWidget(gWidget);
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}
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lay->addItem(gWidget);
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prefSize = gWidget->preferredSize().toSize();
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} else if (qWidget) {
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if (!proxy) {
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proxy = new QGraphicsProxyWidget(q);
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proxy->setWidget(qWidget);
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proxy->show();
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}
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lay->addItem(proxy);
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prefSize = qWidget->sizeHint();
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}
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//we could be on a big panel, but in that case we will be able to resize
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//more than the natural minimum size, because we'll transform into an icon
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if (f == Plasma::Horizontal) {
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minimum.setHeight(0);
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} else if (f == Plasma::Vertical) {
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minimum.setWidth(0);
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}
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qreal left, top, right, bottom;
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q->getContentsMargins(&left, &top, &right, &bottom);
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QSizeF oldSize(q->size());
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q->setMinimumSize(minimum + QSizeF(left+right, top+bottom));
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//size not saved/invalid size saved
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if (oldSize.width() < q->minimumSize().width() || oldSize.height() < q->minimumSize().height()) {
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q->resize(prefSize);
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emit q->appletTransformedItself();
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}
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//Applet on popup
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} else {
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//kDebug() << "about to switch to a popup";
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//save the aspect ratio mode in case we drag'n drop in the Desktop later
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savedAspectRatio = q->aspectRatioMode();
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if (icon) {
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icon->show();
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q->setAspectRatioMode(Plasma::ConstrainedSquare);
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}
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if (proxy) {
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proxy->setWidget(0); // prevent it from deleting our widget!
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delete proxy;
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proxy = 0;
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}
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if (!dialog) {
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dialog = new Plasma::Dialog();
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//no longer use Qt::Popup since that seems to cause a lot of problem when you drag
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//stuff out of your Dialog (extenders). Monitor WindowDeactivate events so we can
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//emulate the same kind of behavior as Qt::Popup (close when you click somewhere
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//else.
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q->setMinimumSize(QSize(0, 0));
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if (gWidget) {
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Corona *corona = qobject_cast<Corona *>(gWidget->scene());
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//could that cast ever fail??
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if (corona) {
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corona->addOffscreenWidget(gWidget);
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dialog->setGraphicsWidget(gWidget);
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gWidget->resize(gWidget->preferredSize());
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}
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dialog->setWindowFlags(Qt::FramelessWindowHint | Qt::WindowStaysOnTopHint | (gWidget->windowFlags() & Qt::X11BypassWindowManagerHint));
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} else if (qWidget) {
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QVBoxLayout *l_layout = new QVBoxLayout(dialog);
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l_layout->setSpacing(0);
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l_layout->setMargin(0);
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l_layout->addWidget(qWidget);
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dialog->adjustSize();
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dialog->setWindowFlags(Qt::FramelessWindowHint | Qt::WindowStaysOnTopHint | (qWidget->windowFlags() & Qt::X11BypassWindowManagerHint));
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} else {
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dialog->setWindowFlags(Qt::FramelessWindowHint | Qt::WindowStaysOnTopHint);
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}
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KWindowSystem::setState(dialog->winId(), NET::SkipTaskbar | NET::SkipPager);
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dialog->installEventFilter(q);
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QObject::connect(dialog, SIGNAL(dialogResized()), q, SLOT(dialogSizeChanged()));
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QObject::connect(dialog, SIGNAL(dialogVisible(bool)), q, SLOT(dialogStatusChanged(bool)));
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}
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if (icon && lay) {
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lay->addItem(icon);
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}
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q->setMinimumSize(0,0);
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}
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}
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if (dialog && constraints & Plasma::PopupConstraint) {
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updateDialogPosition();
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}
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emit q->sizeHintChanged(Qt::PreferredSize);
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}
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void PopupApplet::mousePressEvent(QGraphicsSceneMouseEvent *event)
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{
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if (!d->icon && !d->popupLostFocus && event->buttons() == Qt::LeftButton) {
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d->clicked = scenePos().toPoint();
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event->setAccepted(true);
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return;
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} else {
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d->popupLostFocus = false;
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Applet::mousePressEvent(event);
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}
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}
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void PopupApplet::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
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{
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if (!d->icon &&
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(d->clicked - scenePos().toPoint()).manhattanLength() < KGlobalSettings::dndEventDelay()) {
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d->internalTogglePopup();
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} else {
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Applet::mouseReleaseEvent(event);
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}
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}
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bool PopupApplet::eventFilter(QObject *watched, QEvent *event)
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{
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if (!d->passive && watched == d->dialog && (event->type() == QEvent::WindowDeactivate)) {
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d->popupLostFocus = true;
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hidePopup();
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QTimer::singleShot(100, this, SLOT(clearPopupLostFocus()));
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}
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/**
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if (layout() && watched == graphicsWidget() && (event->type() == QEvent::GraphicsSceneResize)) {
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//sizes are recalculated in the constraintsevent so let's just call that.
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d->popupConstraintsEvent(Plasma::FormFactorConstraint);
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//resize vertically if necesarry.
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if (formFactor() == Plasma::MediaCenter || formFactor() == Plasma::Planar) {
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resize(QSizeF(size().width(), minimumHeight()));
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}
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}
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*/
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return Applet::eventFilter(watched, event);
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}
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//FIXME: some duplication between the drag events... maybe add some simple helper function?
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void PopupApplet::dragEnterEvent(QGraphicsSceneDragDropEvent *event)
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{
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if (event->mimeData()->hasFormat(ExtenderItemMimeData::mimeType())) {
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const ExtenderItemMimeData *mimeData =
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qobject_cast<const ExtenderItemMimeData*>(event->mimeData());
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if (mimeData && qobject_cast<Extender*>(graphicsWidget())) {
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event->accept();
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showPopup();
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}
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}
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}
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void PopupApplet::dragLeaveEvent(QGraphicsSceneDragDropEvent *event)
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{
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if (event->mimeData()->hasFormat(ExtenderItemMimeData::mimeType())) {
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const ExtenderItemMimeData *mimeData =
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qobject_cast<const ExtenderItemMimeData*>(event->mimeData());
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if (mimeData && qobject_cast<Extender*>(graphicsWidget())) {
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//We want to hide the popup if we're not moving onto the popup AND it is not the popup
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//we started.
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if (d->dialog && !d->dialog->geometry().contains(event->screenPos()) &&
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mimeData->extenderItem()->extender() != qobject_cast<Extender*>(graphicsWidget())) {
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//We actually try to hide the popup, with a call to showPopup, with a smal timeout,
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//so if the user moves into the popup fast enough, it remains open (the extender
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//will call showPopup which will cancel the timeout.
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showPopup(250);
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}
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}
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}
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}
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void PopupApplet::dropEvent(QGraphicsSceneDragDropEvent *event)
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{
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if (event->mimeData()->hasFormat(ExtenderItemMimeData::mimeType())) {
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const ExtenderItemMimeData *mimeData =
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qobject_cast<const ExtenderItemMimeData*>(event->mimeData());
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if (mimeData && qobject_cast<Extender*>(graphicsWidget())) {
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mimeData->extenderItem()->setExtender(extender());
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QApplication::restoreOverrideCursor();
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}
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}
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}
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void PopupApplet::showPopup(uint popupDuration)
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{
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if (d->dialog) {
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// move the popup before its fist show, even if the show isn't triggered by
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// a click, this should fix the first random position seen in some widgets
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if (!d->dialog->isVisible()) {
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d->internalTogglePopup();
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}
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if (d->timer) {
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d->timer->stop();
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}
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if (popupDuration > 0) {
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if (!d->timer) {
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d->timer = new QTimer(this);
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connect(d->timer, SIGNAL(timeout()), this, SLOT(hideTimedPopup()));
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}
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d->timer->start(popupDuration);
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}
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}
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}
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void PopupApplet::hidePopup()
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{
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if (d->dialog) {
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if (location() != Floating) {
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d->dialog->animatedHide(locationToInverseDirection(location()));
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} else {
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d->dialog->hide();
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}
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}
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}
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void PopupApplet::togglePopup()
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{
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d->internalTogglePopup();
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}
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Plasma::PopupPlacement PopupApplet::popupPlacement() const
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{
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return d->popupPlacement;
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}
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void PopupApplet::popupEvent(bool)
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{
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}
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void PopupApplet::setPassivePopup(bool passive)
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{
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d->passive = passive;
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}
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bool PopupApplet::isPassivePopup() const
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{
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return d->passive;
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}
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bool PopupApplet::isPopupShowing() const
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{
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return d->dialog && d->dialog->isVisible();
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}
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PopupAppletPrivate::PopupAppletPrivate(PopupApplet *applet)
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: q(applet),
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icon(0),
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dialog(0),
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proxy(0),
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widget(0),
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graphicsWidget(0),
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popupPlacement(Plasma::FloatingPopup),
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savedAspectRatio(Plasma::InvalidAspectRatioMode),
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timer(0),
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popupLostFocus(false),
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passive(false)
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{
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}
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PopupAppletPrivate::~PopupAppletPrivate()
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{
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if (proxy) {
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proxy->setWidget(0);
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}
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delete dialog;
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delete icon;
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}
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void PopupAppletPrivate::internalTogglePopup()
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{
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if (!dialog) {
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q->setFocus(Qt::ShortcutFocusReason);
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return;
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}
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if (!q->view()) {
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return;
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}
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if (timer) {
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timer->stop();
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}
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if (dialog->isVisible()) {
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if (q->location() != Floating) {
|
|
dialog->animatedHide(locationToInverseDirection(q->location()));
|
|
} else {
|
|
dialog->hide();
|
|
}
|
|
|
|
dialog->clearFocus();
|
|
} else {
|
|
if (q->graphicsWidget() &&
|
|
q->graphicsWidget() == static_cast<Applet*>(q)->d->extender &&
|
|
static_cast<Applet*>(q)->d->extender->isEmpty()) {
|
|
// we have nothing to show, so let's not.
|
|
return;
|
|
}
|
|
|
|
ToolTipManager::self()->hide(q);
|
|
updateDialogPosition();
|
|
|
|
KWindowSystem::setOnAllDesktops(dialog->winId(), true);
|
|
KWindowSystem::setState(dialog->winId(), NET::SkipTaskbar | NET::SkipPager);
|
|
|
|
if (q->location() != Floating) {
|
|
dialog->animatedShow(locationToDirection(q->location()));
|
|
} else {
|
|
dialog->show();
|
|
}
|
|
|
|
if (!(dialog->windowFlags() & Qt::X11BypassWindowManagerHint)) {
|
|
KWindowSystem::activateWindow(dialog->winId());
|
|
}
|
|
}
|
|
}
|
|
|
|
void PopupAppletPrivate::hideTimedPopup()
|
|
{
|
|
timer->stop();
|
|
q->hidePopup();
|
|
}
|
|
|
|
void PopupAppletPrivate::clearPopupLostFocus()
|
|
{
|
|
popupLostFocus = false;
|
|
}
|
|
|
|
void PopupAppletPrivate::dialogSizeChanged()
|
|
{
|
|
//Reposition the dialog
|
|
if (dialog) {
|
|
KConfigGroup *mainGroup = static_cast<Applet*>(q)->d->mainConfigGroup();
|
|
KConfigGroup sizeGroup(mainGroup, "PopupApplet");
|
|
sizeGroup.writeEntry("DialogHeight", dialog->height());
|
|
sizeGroup.writeEntry("DialogWidth", dialog->width());
|
|
|
|
updateDialogPosition();
|
|
|
|
emit q->configNeedsSaving();
|
|
}
|
|
}
|
|
|
|
void PopupAppletPrivate::dialogStatusChanged(bool status)
|
|
{
|
|
q->popupEvent(status);
|
|
}
|
|
|
|
void PopupAppletPrivate::updateDialogPosition()
|
|
{
|
|
if (!dialog) {
|
|
return;
|
|
}
|
|
|
|
QGraphicsView *view = q->view();
|
|
|
|
if (!view) {
|
|
return;
|
|
}
|
|
|
|
KConfigGroup *mainGroup = static_cast<Applet*>(q)->d->mainConfigGroup();
|
|
KConfigGroup sizeGroup(mainGroup, "PopupApplet");
|
|
|
|
Q_ASSERT(q->containment());
|
|
Q_ASSERT(q->containment()->corona());
|
|
|
|
int preferredWidth = 0;
|
|
int preferredHeight = 0;
|
|
if (dialog->graphicsWidget()) {
|
|
preferredWidth = dialog->graphicsWidget()->preferredSize().width();
|
|
preferredHeight = dialog->graphicsWidget()->preferredSize().height();
|
|
}
|
|
|
|
const int width = qMin(sizeGroup.readEntry("DialogWidth", preferredWidth),
|
|
q->containment()->corona()->screenGeometry(-1).width() - 50);
|
|
const int height = qMin(sizeGroup.readEntry("DialogHeight", preferredHeight),
|
|
q->containment()->corona()->screenGeometry(-1).height() - 50);
|
|
|
|
QSize saved(width, height);
|
|
|
|
if (saved.isNull()) {
|
|
saved = dialog->sizeHint();
|
|
} else {
|
|
saved = saved.expandedTo(dialog->minimumSizeHint());
|
|
}
|
|
|
|
if (saved.width() != dialog->width() || saved.height() != dialog->height()) {
|
|
dialog->resize(saved);
|
|
}
|
|
|
|
QSize s = dialog->size();
|
|
QPoint pos = view->mapFromScene(q->scenePos());
|
|
|
|
//try to access a corona
|
|
Corona *corona = qobject_cast<Corona *>(q->scene());
|
|
if (corona) {
|
|
pos = corona->popupPosition(q, s);
|
|
}
|
|
|
|
bool reverse = false;
|
|
if (q->formFactor() == Plasma::Vertical) {
|
|
if (view->mapToGlobal(view->mapFromScene(q->scenePos())).y() + q->size().height()/2 < pos.y() + dialog->size().width()/2) {
|
|
reverse = true;
|
|
}
|
|
} else {
|
|
if (view->mapToGlobal(view->mapFromScene(q->scenePos())).x() + q->size().width()/2 < pos.x() + dialog->size().width()/2) {
|
|
reverse = true;
|
|
}
|
|
}
|
|
|
|
switch (q->location()) {
|
|
case BottomEdge:
|
|
if (pos.x() >= q->pos().x()) {
|
|
dialog->setResizeHandleCorners(Dialog::NorthEast);
|
|
} else {
|
|
dialog->setResizeHandleCorners(Dialog::NorthWest);
|
|
}
|
|
|
|
if (reverse) {
|
|
popupPlacement = Plasma::TopPosedLeftAlignedPopup;
|
|
} else {
|
|
popupPlacement = Plasma::TopPosedRightAlignedPopup;
|
|
}
|
|
break;
|
|
case TopEdge:
|
|
if (pos.x() >= q->pos().x()) {
|
|
dialog->setResizeHandleCorners(Dialog::SouthEast);
|
|
} else {
|
|
dialog->setResizeHandleCorners(Dialog::SouthWest);
|
|
}
|
|
|
|
if (reverse) {
|
|
popupPlacement = Plasma::BottomPosedLeftAlignedPopup;
|
|
} else {
|
|
popupPlacement = Plasma::BottomPosedRightAlignedPopup;
|
|
}
|
|
break;
|
|
case LeftEdge:
|
|
if (pos.y() >= q->pos().y()) {
|
|
dialog->setResizeHandleCorners(Dialog::SouthEast);
|
|
} else {
|
|
dialog->setResizeHandleCorners(Dialog::NorthEast);
|
|
}
|
|
|
|
if (reverse) {
|
|
popupPlacement = Plasma::RightPosedTopAlignedPopup;
|
|
} else {
|
|
popupPlacement = Plasma::RightPosedBottomAlignedPopup;
|
|
}
|
|
break;
|
|
|
|
case RightEdge:
|
|
if (pos.y() >= q->pos().y()) {
|
|
dialog->setResizeHandleCorners(Dialog::SouthWest);
|
|
} else {
|
|
dialog->setResizeHandleCorners(Dialog::NorthWest);
|
|
}
|
|
|
|
if (reverse) {
|
|
popupPlacement = Plasma::LeftPosedTopAlignedPopup;
|
|
} else {
|
|
popupPlacement = Plasma::LeftPosedBottomAlignedPopup;
|
|
}
|
|
break;
|
|
default:
|
|
dialog->setResizeHandleCorners(Dialog::NorthEast);
|
|
}
|
|
|
|
dialog->move(pos);
|
|
}
|
|
|
|
} // Plasma namespace
|
|
|
|
#include "popupapplet.moc"
|
|
|