600 lines
18 KiB
C++
600 lines
18 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 <QGraphicsProxyWidget>
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#include <QGraphicsLinearLayout>
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#include <QVBoxLayout>
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#include <QTimer>
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#include <QApplication>
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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 "plasma/private/applet_p.h"
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#include "plasma/dialog.h"
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#include "plasma/corona.h"
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#include "plasma/containment.h"
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#include "plasma/extender.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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connect(this, SIGNAL(activate()), this, SLOT(togglePopup()));
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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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}
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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(togglePopup()));
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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 0;
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}
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QGraphicsWidget *PopupApplet::graphicsWidget()
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{
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return static_cast<Applet*>(this)->d->extender;
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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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if (constraints & Plasma::StartupCompletedConstraint) {
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startupComplete = true;
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}
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if (!startupComplete) {
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return;
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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::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 containmentSize;
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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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if (q->containment()) {
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containmentSize = q->containment()->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 && containmentSize.width() >= minimum.width()) ||
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(f == Plasma::Horizontal && containmentSize.height() >= minimum.height())))) {
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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 && !q->layout()) {
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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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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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if (lay) {
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lay->addItem(proxy);
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}
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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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}
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//Applet on popup
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} else {
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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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q->setAspectRatioMode(Plasma::ConstrainedSquare);
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if (icon) {
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icon->show();
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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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Qt::WindowFlags wflags = Qt::FramelessWindowHint | Qt::WindowStaysOnTopHint;
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if (passive) {
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wflags |= Qt::X11BypassWindowManagerHint;
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}
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dialog->setWindowFlags(wflags);
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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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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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}
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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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}
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}
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dialog->adjustSize();
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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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}
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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->togglePopup();
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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 (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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void PopupApplet::showPopup(uint popupDuration)
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{
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if (d->dialog && (formFactor() == Horizontal || formFactor() == Vertical)) {
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d->dialog->show();
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KWindowSystem::setState(d->dialog->winId(), NET::SkipTaskbar | NET::SkipPager);
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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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d->dialog->hide();
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}
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}
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void PopupApplet::togglePopup()
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{
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if (d->dialog && (formFactor() == Horizontal || formFactor() == Vertical)) {
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d->dialog->setVisible(!d->dialog->isVisible());
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}
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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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if (d->dialog) {
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Qt::WindowFlags wflags = Qt::FramelessWindowHint | Qt::WindowStaysOnTopHint;
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if (d->passive) {
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wflags |= Qt::X11BypassWindowManagerHint;
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}
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d->dialog->setWindowFlags(wflags);
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}
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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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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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popupPlacement(Plasma::FloatingPopup),
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savedAspectRatio(Plasma::InvalidAspectRatioMode),
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timer(0),
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startupComplete(false),
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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::togglePopup()
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{
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if (dialog) {
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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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dialog->hide();
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} else {
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dialog->show();
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updateDialogPosition();
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KWindowSystem::setState(dialog->winId(), NET::SkipTaskbar | NET::SkipPager);
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}
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dialog->clearFocus();
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}
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}
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void PopupAppletPrivate::hideTimedPopup()
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{
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timer->stop();
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q->hidePopup();
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}
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void PopupAppletPrivate::clearPopupLostFocus()
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{
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popupLostFocus = false;
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}
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void PopupAppletPrivate::dialogSizeChanged()
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{
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//Reposition the dialog
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if (dialog) {
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KConfigGroup sizeGroup = q->config();
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sizeGroup = KConfigGroup(&sizeGroup, "PopupApplet");
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sizeGroup.writeEntry("DialogHeight", dialog->height());
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sizeGroup.writeEntry("DialogWidth", dialog->width());
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updateDialogPosition();
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emit q->configNeedsSaving();
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}
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}
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void PopupAppletPrivate::dialogStatusChanged(bool status)
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{
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q->popupEvent(status);
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}
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void PopupAppletPrivate::updateDialogPosition()
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{
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QGraphicsView *view = q->view();
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if (!view) {
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return;
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}
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KConfigGroup sizeGroup = q->config();
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sizeGroup = KConfigGroup(&sizeGroup, "PopupApplet");
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Q_ASSERT(q->containment());
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Q_ASSERT(q->containment()->corona());
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const int width = qMin(sizeGroup.readEntry("DialogWidth", 0),
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q->containment()->corona()->screenGeometry(-1).width() - 50);
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const int height = qMin(sizeGroup.readEntry("DialogHeight", 0),
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q->containment()->corona()->screenGeometry(-1).height() - 50);
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QSize saved(width, height);
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if (saved.isNull()) {
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dialog->adjustSize();
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} else {
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saved = saved.expandedTo(dialog->minimumSizeHint());
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dialog->resize(saved);
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}
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QSize s = dialog->size();
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QPoint pos = view->mapFromScene(q->scenePos());
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pos = view->mapToGlobal(pos);
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switch (q->location()) {
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case BottomEdge:
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pos = QPoint(pos.x(), pos.y() - s.height());
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popupPlacement = Plasma::TopPosedLeftAlignedPopup;
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dialog->setResizeHandleCorners(Dialog::NorthEast);
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break;
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case TopEdge:
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pos = QPoint(pos.x(), pos.y() + (int)q->boundingRect().size().height());
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popupPlacement = Plasma::BottomPosedLeftAlignedPopup;
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dialog->setResizeHandleCorners(Dialog::SouthEast);
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break;
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case LeftEdge:
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pos = QPoint(pos.x() + (int)q->boundingRect().size().width(), pos.y());
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popupPlacement = Plasma::RightPosedTopAlignedPopup;
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dialog->setResizeHandleCorners(Dialog::SouthEast);
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break;
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case RightEdge:
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pos = QPoint(pos.x() - s.width(), pos.y());
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popupPlacement = Plasma::LeftPosedTopAlignedPopup;
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dialog->setResizeHandleCorners(Dialog::SouthWest);
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break;
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default:
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if (pos.y() - s.height() > 0) {
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pos = QPoint(pos.x(), pos.y() - s.height());
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} else {
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pos = QPoint(pos.x(), pos.y() + (int)q->boundingRect().size().height());
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}
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dialog->setResizeHandleCorners(Dialog::NorthEast);
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}
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//are we out of screen?
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QRect screenRect =
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q->containment()->corona()->screenGeometry(q->containment() ? q->containment()->screen() : -1);
|
|
//kDebug() << "==> rect for"
|
|
// << (containment() ? containment()->screen() : -1)
|
|
// << "is" << screenRect;
|
|
|
|
if (pos.rx() + s.width() > screenRect.right()) {
|
|
pos.rx() += (int)q->boundingRect().size().width() - s.width();
|
|
|
|
if (q->location() == BottomEdge) {
|
|
popupPlacement = Plasma::TopPosedRightAlignedPopup;
|
|
dialog->setResizeHandleCorners(Dialog::NorthWest);
|
|
} else if (q->location() == TopEdge) {
|
|
popupPlacement = Plasma::BottomPosedRightAlignedPopup;
|
|
dialog->setResizeHandleCorners(Dialog::SouthWest);
|
|
}
|
|
}
|
|
|
|
if (pos.ry() + s.height() > screenRect.bottom()) {
|
|
pos.ry() += (int)q->boundingRect().size().height() - s.height();
|
|
|
|
if (q->location() == LeftEdge) {
|
|
popupPlacement = Plasma::RightPosedBottomAlignedPopup;
|
|
dialog->setResizeHandleCorners(Dialog::NorthEast);
|
|
} else if (q->location() == RightEdge) {
|
|
popupPlacement = Plasma::LeftPosedBottomAlignedPopup;
|
|
dialog->setResizeHandleCorners(Dialog::NorthWest);
|
|
}
|
|
}
|
|
|
|
pos.rx() = qMax(0, pos.rx());
|
|
|
|
dialog->move(pos);
|
|
}
|
|
} // Plasma namespace
|
|
|
|
#include "popupapplet.moc"
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|
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