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plasma-framework/applet.cpp
Alexis Ménard ee34edad4a SVN commit 917619 
Add an appletDestroyed signal instead of catching the destruction in containments with qobject destroyed signal.
This fix errors because we give an invalid pointer to public appletRemoved signal.

svn path=/branches/KDE/4.2/kdelibs/; revision=917622
2009-01-28 08:13:19 +00:00

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/*
* Copyright 2005 by Aaron Seigo <aseigo@kde.org>
* Copyright 2007 by Riccardo Iaconelli <riccardo@kde.org>
* Copyright 2008 by Ménard Alexis <darktears31@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Library General Public License as
* published by the Free Software Foundation; either version 2, 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 Library General Public
* License along with this program; if not, write to the
* Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "applet.h"
#include "private/applet_p.h"
#include <cmath>
#include <limits>
#include <QAction>
#include <QApplication>
#include <QEvent>
#include <QFile>
#include <QGraphicsGridLayout>
#include <QGraphicsSceneMouseEvent>
#include <QGraphicsView>
#include <QLabel>
#include <QList>
#include <QGraphicsLinearLayout>
#include <QPainter>
#include <QSize>
#include <QStyleOptionGraphicsItem>
#include <QTextDocument>
#include <QUiLoader>
#include <QVBoxLayout>
#include <QWidget>
#include <kaction.h>
#include <kactioncollection.h>
#include <kauthorized.h>
#include <kcolorscheme.h>
#include <kconfigdialog.h>
#include <kdialog.h>
#include <kicon.h>
#include <kiconloader.h>
#include <kkeysequencewidget.h>
#include <kplugininfo.h>
#include <kstandarddirs.h>
#include <kservice.h>
#include <kservicetypetrader.h>
#include <kshortcut.h>
#include <kwindowsystem.h>
#include <kpushbutton.h>
#include <solid/powermanagement.h>
#include "configloader.h"
#include "containment.h"
#include "corona.h"
#include "dataenginemanager.h"
#include "extender.h"
#include "extenderitem.h"
#include "package.h"
#include "plasma.h"
#include "scripting/appletscript.h"
#include "svg.h"
#include "framesvg.h"
#include "popupapplet.h"
#include "theme.h"
#include "view.h"
#include "widgets/iconwidget.h"
#include "widgets/label.h"
#include "widgets/pushbutton.h"
#include "widgets/busywidget.h"
#include "tooltipmanager.h"
#include "wallpaper.h"
#include "private/containment_p.h"
#include "private/extenderapplet_p.h"
#include "private/packages_p.h"
#include "private/popupapplet_p.h"
#include "private/toolbox_p.h"
//#define DYNAMIC_SHADOWS
namespace Plasma
{
Applet::Applet(QGraphicsItem *parent,
const QString &serviceID,
uint appletId)
: QGraphicsWidget(parent),
d(new AppletPrivate(KService::serviceByStorageId(serviceID), appletId, this))
{
// WARNING: do not access config() OR globalConfig() in this method!
// that requires a scene, which is not available at this point
d->init();
}
Applet::Applet(QObject *parentObject, const QVariantList &args)
: QGraphicsWidget(0),
d(new AppletPrivate(
KService::serviceByStorageId(args.count() > 0 ? args[0].toString() : QString()),
args.count() > 1 ? args[1].toInt() : 0, this))
{
// now remove those first two items since those are managed by Applet and subclasses shouldn't
// need to worry about them. yes, it violates the constness of this var, but it lets us add
// or remove items later while applets can just pretend that their args always start at 0
QVariantList &mutableArgs = const_cast<QVariantList &>(args);
if (!mutableArgs.isEmpty()) {
mutableArgs.removeFirst();
if (!mutableArgs.isEmpty()) {
mutableArgs.removeFirst();
}
}
setParent(parentObject);
// WARNING: do not access config() OR globalConfig() in this method!
// that requires a scene, which is not available at this point
d->init();
// the brain damage seen in the initialization list is due to the
// inflexibility of KService::createInstance
}
Applet::~Applet()
{
//let people know that i will die
emit appletDestroyed(this);
if (d->transient) {
d->resetConfigurationObject();
} else if (d->extender) {
//This would probably be nicer if it was located in extender. But in it's dtor, this won't
//work since when that get's called, the applet's config() isn't accessible anymore. (same
//problem with calling saveState(). Doing this in saveState() might be a possibility, but
//that would require every extender savestate implementation to call it's parent function,
//which isn't very nice.
foreach (ExtenderItem *item, d->extender->attachedItems()) {
if (!item->isDetached() || item->autoExpireDelay()) {
//destroy temporary extender items, or items that aren't detached, so their
//configuration won't linger after a plasma restart.
item->destroy();
}
}
d->extender->saveState();
}
delete d;
}
PackageStructure::Ptr Applet::packageStructure()
{
if (!AppletPrivate::packageStructure) {
AppletPrivate::packageStructure = new PlasmoidPackage();
}
return AppletPrivate::packageStructure;
}
void Applet::init()
{
if (d->script && !d->script->init()) {
setFailedToLaunch(true, i18n("Script initialization failed"));
}
}
uint Applet::id() const
{
return d->appletId;
}
void Applet::save(KConfigGroup &g) const
{
if (d->transient) {
return;
}
KConfigGroup group = g;
if (!group.isValid()) {
group = *d->mainConfigGroup();
}
//kDebug() << "saving to" << group.name();
// we call the dptr member directly for locked since isImmutable()
// also checks kiosk and parent containers
group.writeEntry("immutability", (int)d->immutability);
group.writeEntry("plugin", pluginName());
group.writeEntry("geometry", geometry());
group.writeEntry("zvalue", zValue());
if (!d->started) {
return;
}
//FIXME: for containments, we need to have some special values here w/regards to
// screen affinity (e.g. "bottom of screen 0")
//kDebug() << pluginName() << "geometry is" << geometry()
// << "pos is" << pos() << "bounding rect is" << boundingRect();
if (transform() == QTransform()) {
group.deleteEntry("transform");
} else {
QList<qreal> m;
QTransform t = transform();
m << t.m11() << t.m12() << t.m13() << t.m21() << t.m22() << t.m23() << t.m31() << t.m32() << t.m33();
group.writeEntry("transform", m);
//group.writeEntry("transform", transformToString(transform()));
}
KConfigGroup appletConfigGroup(&group, "Configuration");
//FIXME: we need a global save state too
saveState(appletConfigGroup);
if (d->activationAction) {
KConfigGroup shortcutConfig(&group, "Shortcuts");
shortcutConfig.writeEntry("global", d->activationAction->globalShortcut().toString());
}
}
void Applet::restore(KConfigGroup &group)
{
QList<qreal> m = group.readEntry("transform", QList<qreal>());
if (m.count() == 9) {
QTransform t(m[0], m[1], m[2], m[3], m[4], m[5], m[6], m[7], m[8]);
setTransform(t);
}
qreal z = group.readEntry("zvalue", 0);
if (z >= AppletPrivate::s_maxZValue) {
AppletPrivate::s_maxZValue = z;
}
if (z > 0) {
setZValue(z);
}
setImmutability((ImmutabilityType)group.readEntry("immutability", (int)Mutable));
QRectF geom = group.readEntry("geometry", QRectF());
if (geom.isValid()) {
setGeometry(geom);
}
KConfigGroup shortcutConfig(&group, "Shortcuts");
QString shortcutText = shortcutConfig.readEntryUntranslated("global", QString());
if (!shortcutText.isEmpty()) {
setGlobalShortcut(KShortcut(shortcutText));
kDebug() << "got global shortcut for" << name() << "of" << QKeySequence(shortcutText);
kDebug() << "set to" << d->activationAction->objectName()
<< d->activationAction->globalShortcut().primary();
}
// local shortcut, if any
//TODO: implement; the shortcut will need to be registered with the containment
/*
shortcutText = shortcutConfig.readEntryUntranslated("local", QString());
if (!shortcutText.isEmpty()) {
//TODO: implement; the shortcut
}
*/
}
void AppletPrivate::setFocus()
{
//kDebug() << "setting focus";
q->setFocus(Qt::ShortcutFocusReason);
}
void Applet::setFailedToLaunch(bool failed, const QString &reason)
{
if (d->failed == failed) {
if (failed && !reason.isEmpty()) {
foreach (QGraphicsItem *item, QGraphicsItem::children()) {
Label *l = dynamic_cast<Label *>(item);
if (l) {
l->setText(d->visibleFailureText(reason));
}
}
}
return;
}
d->failed = failed;
prepareGeometryChange();
qDeleteAll(QGraphicsItem::children());
setLayout(0);
if (failed) {
setBackgroundHints(d->backgroundHints|StandardBackground);
QGraphicsLinearLayout *failureLayout = new QGraphicsLinearLayout(this);
failureLayout->setContentsMargins(0, 0, 0, 0);
IconWidget *failureIcon = new IconWidget(this);
failureIcon->setIcon(KIcon("dialog-error"));
failureLayout->addItem(failureIcon);
Label *failureWidget = new Plasma::Label(this);
failureWidget->setText(d->visibleFailureText(reason));
QLabel *label = failureWidget->nativeWidget();
label->setWordWrap(true);
failureLayout->addItem(failureWidget);
Plasma::ToolTipManager::self()->registerWidget(failureIcon);
Plasma::ToolTipContent data(i18n("Unable to load the widget"), reason,
KIcon("dialog-error"));
Plasma::ToolTipManager::self()->setContent(failureIcon, data);
setLayout(failureLayout);
resize(300, 250);
setMinimumSize(failureLayout->minimumSize());
d->background->resizeFrame(geometry().size());
}
update();
}
void Applet::saveState(KConfigGroup &group) const
{
if (group.config()->name() != config().config()->name()) {
// we're being saved to a different file!
// let's just copy the current values in our configuration over
KConfigGroup c = config();
c.copyTo(&group);
}
}
KConfigGroup Applet::config(const QString &group) const
{
KConfigGroup cg = config();
return KConfigGroup(&cg, group);
}
KConfigGroup Applet::config() const
{
if (d->isContainment) {
return *(d->mainConfigGroup());
}
return KConfigGroup(d->mainConfigGroup(), "Configuration");
}
KConfigGroup Applet::globalConfig() const
{
KConfigGroup globalAppletConfig;
QString group = isContainment() ? "ContainmentGlobals" : "AppletGlobals";
Corona *corona = qobject_cast<Corona*>(scene());
if (corona) {
KSharedConfig::Ptr coronaConfig = corona->config();
globalAppletConfig = KConfigGroup(coronaConfig, group);
} else {
globalAppletConfig = KConfigGroup(KGlobal::config(), group);
}
return KConfigGroup(&globalAppletConfig, d->globalName());
}
void Applet::destroy()
{
if (immutability() != Mutable || d->transient) {
return; //don't double delete
}
d->transient = true;
if (isContainment()) {
d->cleanUpAndDelete();
} else {
d->resetConfigurationObject();
connect(Animator::self(), SIGNAL(animationFinished(QGraphicsItem*,Plasma::Animator::Animation)),
this, SLOT(appletAnimationComplete(QGraphicsItem*,Plasma::Animator::Animation)));
Animator::self()->animateItem(this, Animator::DisappearAnimation);
}
Corona * corona = qobject_cast<Corona*>(scene());
if (corona) {
corona->requireConfigSync();
}
}
bool Applet::destroyed() const
{
return d->transient;
}
void AppletPrivate::appletAnimationComplete(QGraphicsItem *item, Plasma::Animator::Animation anim)
{
if (anim != Animator::DisappearAnimation || item != q) {
return; //it's not our time yet
}
cleanUpAndDelete();
}
void AppletPrivate::selectItemToDestroy()
{
//FIXME: this will not work nicely with multiple screens and being zoomed out!
if (q->isContainment()) {
QGraphicsView *view = q->view();
if (view && view->transform().isScaling() &&
q->scene()->focusItem() != q) {
QGraphicsItem *focus = q->scene()->focusItem();
if (focus) {
Containment *toDestroy = dynamic_cast<Containment*>(focus->topLevelItem());
if (toDestroy) {
toDestroy->destroy();
return;
}
}
}
}
q->destroy();
}
void AppletPrivate::updateRect(const QRectF &rect)
{
q->update(rect);
}
void AppletPrivate::cleanUpAndDelete()
{
//kDebug() << "???????????????? DESTROYING APPLET" << name() << " ???????????????????????????";
QGraphicsWidget *parent = dynamic_cast<QGraphicsWidget *>(q->parentItem());
//it probably won't matter, but right now if there are applethandles, *they* are the parent.
//not the containment.
//is the applet in a containment and is the containment have a layout?
//if yes, we remove the applet in the layout
if (parent && parent->layout()) {
QGraphicsLayout *l = parent->layout();
for (int i = 0; i < l->count(); ++i) {
if (q == l->itemAt(i)) {
l->removeAt(i);
break;
}
}
}
if (configLoader) {
configLoader->setDefaults();
}
q->scene()->removeItem(q);
q->deleteLater();
}
void AppletPrivate::createMessageOverlay()
{
if (!messageOverlay) {
messageOverlay = new AppletOverlayWidget(q);
} else {
qDeleteAll(messageOverlay->children());
messageOverlay->setLayout(0);
}
messageOverlay->resize(q->contentsRect().size());
messageOverlay->setPos(q->contentsRect().topLeft());
// raise the overlay above all the other children!
int zValue = 100;
foreach (QGraphicsItem *child, q->QGraphicsItem::children()) {
if (child->zValue() > zValue) {
zValue = child->zValue() + 1;
}
}
messageOverlay->setZValue(zValue);
}
void AppletPrivate::destroyMessageOverlay()
{
//TODO: fade out? =)
QGraphicsWidget *w = messageOverlay;
messageOverlay = 0;
w->hide();
w->deleteLater();
}
ConfigLoader *Applet::configScheme() const
{
return d->configLoader;
}
DataEngine *Applet::dataEngine(const QString &name) const
{
int index = d->loadedEngines.indexOf(name);
if (index != -1) {
return DataEngineManager::self()->engine(name);
}
DataEngine *engine = DataEngineManager::self()->loadEngine(name);
if (engine->isValid()) {
d->loadedEngines.append(name);
}
return engine;
}
const Package *Applet::package() const
{
return d->package;
}
QGraphicsView *Applet::view() const
{
// It's assumed that we won't be visible on more than one view here.
// Anything that actually needs view() should only really care about
// one of them anyway though.
if (!scene()) {
return 0;
}
QGraphicsView *found = 0;
QGraphicsView *possibleFind = 0;
//kDebug() << "looking through" << scene()->views().count() << "views";
foreach (QGraphicsView *view, scene()->views()) {
//kDebug() << " checking" << view << view->sceneRect()
// << "against" << sceneBoundingRect() << scenePos();
if (view->sceneRect().intersects(sceneBoundingRect()) ||
view->sceneRect().contains(scenePos())) {
//kDebug() << " found something!" << view->isActiveWindow();
if (view->isActiveWindow()) {
found = view;
} else {
possibleFind = view;
}
}
}
return found ? found : possibleFind;
}
QRectF Applet::mapFromView(const QGraphicsView *view, const QRect &rect) const
{
// Why is this adjustment needed? Qt calculation error?
return mapFromScene(view->mapToScene(rect)).boundingRect().adjusted(0, 0, 1, 1);
}
QRect Applet::mapToView(const QGraphicsView *view, const QRectF &rect) const
{
// Why is this adjustment needed? Qt calculation error?
return view->mapFromScene(mapToScene(rect)).boundingRect().adjusted(0, 0, -1, -1);
}
QPoint Applet::popupPosition(const QSize &s) const
{
Corona * corona = qobject_cast<Corona*>(scene());
Q_ASSERT(corona);
return corona->popupPosition(this, s);
}
void Applet::updateConstraints(Plasma::Constraints constraints)
{
d->scheduleConstraintsUpdate(constraints);
}
void Applet::constraintsEvent(Plasma::Constraints constraints)
{
//NOTE: do NOT put any code in here that reacts to constraints updates
// as it will not get called for any applet that reimplements constraintsEvent
// without calling the Applet:: version as well, which it shouldn't need to.
// INSTEAD put such code into flushPendingConstraintsEvents
Q_UNUSED(constraints)
//kDebug() << constraints << "constraints are FormFactor: " << formFactor()
// << ", Location: " << location();
if (d->script) {
d->script->constraintsEvent(constraints);
}
}
void Applet::initExtenderItem(ExtenderItem *item)
{
Q_UNUSED(item)
item->destroy();
}
Extender *Applet::extender() const
{
if (!d->extender) {
new Extender(const_cast<Applet*>(this));
}
return d->extender;
}
void Applet::setBusy(bool busy)
{
if (busy) {
if (!d->busyWidget) {
d->busyWidget = new Plasma::BusyWidget(this);
} else {
d->busyWidget->show();
}
int busySize = qMin(size().width(), size().height())/3;
QRect busyRect(0, 0, busySize, busySize);
busyRect.moveCenter(boundingRect().center().toPoint());
d->busyWidget->setGeometry(busyRect);
} else if (d->busyWidget) {
d->busyWidget->hide();
d->busyWidget->deleteLater();
d->busyWidget = 0;
}
}
bool Applet::isBusy() const
{
return d->busyWidget && d->busyWidget->isVisible();
}
QString Applet::name() const
{
if (isContainment()) {
if (!d->appletDescription.isValid()) {
return i18n("Unknown Activity");
}
const Containment *c = qobject_cast<const Containment*>(this);
if (c && !c->activity().isNull()) {
return i18n("%1 Activity", c->activity());
}
} else if (!d->appletDescription.isValid()) {
return i18n("Unknown Widget");
}
return d->appletDescription.name();
}
QFont Applet::font() const
{
return QApplication::font();
}
QString Applet::icon() const
{
if (!d->appletDescription.isValid()) {
return QString();
}
return d->appletDescription.icon();
}
QString Applet::pluginName() const
{
if (!d->appletDescription.isValid()) {
return QString();
}
return d->appletDescription.pluginName();
}
bool Applet::shouldConserveResources() const
{
return Solid::PowerManagement::appShouldConserveResources();
}
QString Applet::category() const
{
if (!d->appletDescription.isValid()) {
return i18nc("misc category", "Miscellaneous");
}
return d->appletDescription.category();
}
QString Applet::category(const KPluginInfo &applet)
{
return applet.property("X-KDE-PluginInfo-Category").toString();
}
QString Applet::category(const QString &appletName)
{
if (appletName.isEmpty()) {
return QString();
}
QString constraint = QString("[X-KDE-PluginInfo-Name] == '%1'").arg(appletName);
KService::List offers = KServiceTypeTrader::self()->query("Plasma/Applet", constraint);
if (offers.isEmpty()) {
return QString();
}
return offers.first()->property("X-KDE-PluginInfo-Category").toString();
}
ImmutabilityType Applet::immutability() const
{
//Returning the more strict immutability between the applet immutability and Corona one
ImmutabilityType coronaImmutability = Mutable;
if (qobject_cast<Corona*>(scene())) {
coronaImmutability = static_cast<Corona*>(scene())->immutability();
}
if (coronaImmutability == SystemImmutable) {
return SystemImmutable;
} else if (coronaImmutability == UserImmutable && d->immutability != SystemImmutable) {
return UserImmutable;
} else {
return d->immutability;
}
}
void Applet::setImmutability(const ImmutabilityType immutable)
{
if (d->immutability == immutable) {
return;
}
d->immutability = immutable;
updateConstraints(ImmutableConstraint);
}
Applet::BackgroundHints Applet::backgroundHints() const
{
return d->backgroundHints;
}
void Applet::setBackgroundHints(const BackgroundHints hints)
{
d->backgroundHints = hints;
//Draw the standard background?
if ((hints & StandardBackground) || (hints & TranslucentBackground)) {
if (!d->background) {
d->background = new Plasma::FrameSvg(this);
}
if ((hints & TranslucentBackground) &&
Plasma::Theme::defaultTheme()->currentThemeHasImage("widgets/translucentbackground")) {
d->background->setImagePath("widgets/translucentbackground");
} else {
d->background->setImagePath("widgets/background");
}
d->background->setEnabledBorders(Plasma::FrameSvg::AllBorders);
qreal left, top, right, bottom;
d->background->getMargins(left, top, right, bottom);
setContentsMargins(left, right, top, bottom);
QSizeF fitSize(left + right, top + bottom);
if (minimumSize().expandedTo(fitSize) != minimumSize()) {
setMinimumSize(minimumSize().expandedTo(fitSize));
}
d->background->resizeFrame(boundingRect().size());
} else if (d->background) {
qreal left, top, right, bottom;
d->background->getMargins(left, top, right, bottom);
//Setting a minimum size of 0,0 would result in the panel to be only
//on the first virtual desktop
setMinimumSize(qMax(minimumSize().width() - left - right, qreal(1.0)),
qMax(minimumSize().height() - top - bottom, qreal(1.0)));
delete d->background;
d->background = 0;
setContentsMargins(0, 0, 0, 0);
}
}
bool Applet::hasFailedToLaunch() const
{
return d->failed;
}
void Applet::paintWindowFrame(QPainter *painter,
const QStyleOptionGraphicsItem *option, QWidget *widget)
{
Q_UNUSED(painter)
Q_UNUSED(option)
Q_UNUSED(widget)
//Here come the code for the window frame
//kDebug() << windowFrameGeometry();
//painter->drawRoundedRect(windowFrameGeometry(), 5, 5);
}
bool Applet::configurationRequired() const
{
return d->needsConfig;
}
void Applet::setConfigurationRequired(bool needsConfig, const QString &reason)
{
if (d->needsConfig == needsConfig) {
return;
}
d->needsConfig = needsConfig;
if (!needsConfig) {
d->destroyMessageOverlay();
return;
}
d->createMessageOverlay();
QGraphicsGridLayout *configLayout = new QGraphicsGridLayout(d->messageOverlay);
configLayout->setContentsMargins(0, 0, 0, 0);
// configLayout->addStretch();
configLayout->setColumnStretchFactor(0, 10);
configLayout->setColumnStretchFactor(2, 10);
configLayout->setRowStretchFactor(0, 10);
configLayout->setRowStretchFactor(3, 10);
int row = 1;
if (!reason.isEmpty()) {
Label *explanation = new Label(d->messageOverlay);
explanation->setText(reason);
configLayout->addItem(explanation, row, 1);
configLayout->setColumnStretchFactor(1, 10);
++row;
//configLayout->setAlignment(explanation, Qt::AlignBottom | Qt::AlignCenter);
}
//popupapplets in panels just show an icon, otherwise the button is too large
Plasma::FormFactor f = formFactor();
if (f == Plasma::Horizontal || f == Plasma::Vertical) {
IconWidget *configWidget = new IconWidget(d->messageOverlay);
configWidget->setSvg("widgets/configuration-icons", "configure");
configWidget->setDrawBackground(true);
connect(configWidget, SIGNAL(clicked()), this, SLOT(showConfigurationInterface()));
configLayout->addItem(configWidget, row, 1);
// raise the overlay above all the other children!
int zValue = 100;
foreach (QGraphicsItem *child, QGraphicsItem::children()) {
if (child->zValue() > zValue) {
zValue = child->zValue() + 1;
}
}
configWidget->setZValue(zValue);
} else {
PushButton *configWidget = new PushButton(d->messageOverlay);
configWidget->setText(i18n("Configure..."));
connect(configWidget, SIGNAL(clicked()), this, SLOT(showConfigurationInterface()));
configLayout->addItem(configWidget, row, 1);
}
//configLayout->setAlignment(configWidget, Qt::AlignTop | Qt::AlignCenter);
//configLayout->addStretch();
d->messageOverlay->show();
}
void Applet::flushPendingConstraintsEvents()
{
if (d->pendingConstraints == NoConstraint) {
return;
}
if (d->constraintsTimerId) {
killTimer(d->constraintsTimerId);
d->constraintsTimerId = 0;
}
//kDebug() << "fushing constraints: " << d->pendingConstraints << "!!!!!!!!!!!!!!!!!!!!!!!!!!!";
Plasma::Constraints c = d->pendingConstraints;
d->pendingConstraints = NoConstraint;
if (c & Plasma::StartupCompletedConstraint) {
//common actions
bool unlocked = immutability() == Mutable;
//FIXME desktop containments can't be removed while in use.
//it's kinda silly to have a keyboard shortcut for something that can only be used when the
//shortcut isn't active.
QAction *closeApplet = new QAction(this);
closeApplet->setIcon(KIcon("edit-delete"));
closeApplet->setEnabled(unlocked);
closeApplet->setVisible(unlocked);
closeApplet->setShortcutContext(Qt::WidgetShortcut); //don't clash with other views
closeApplet->setText(i18nc("%1 is the name of the applet", "Remove this %1", name()));
if (isContainment()) {
closeApplet->setShortcut(QKeySequence("ctrl+shift+r"));
} else {
closeApplet->setShortcut(QKeySequence("ctrl+r"));
}
connect(closeApplet, SIGNAL(triggered(bool)), this, SLOT(selectItemToDestroy()));
d->actions.addAction("remove", closeApplet);
}
if (c & Plasma::ImmutableConstraint) {
bool unlocked = immutability() == Mutable;
QAction *action = d->actions.action("remove");
if (action) {
action->setVisible(unlocked);
action->setEnabled(unlocked);
}
bool canConfig = unlocked || KAuthorized::authorize("PlasmaAllowConfigureWhenLocked");
if (canConfig) {
action = d->actions.action("configure");
if (action) {
action->setVisible(canConfig);
action->setEnabled(canConfig);
}
}
}
if (c & Plasma::SizeConstraint) {
if (d->messageOverlay) {
d->messageOverlay->setGeometry(QRectF(QPointF(0, 0), geometry().size()));
QGraphicsItem *button = 0;
QList<QGraphicsItem*> children = d->messageOverlay->QGraphicsItem::children();
if (!children.isEmpty()) {
button = children.first();
}
if (button) {
QSizeF s = button->boundingRect().size();
button->setPos(d->messageOverlay->boundingRect().width() / 2 - s.width() / 2,
d->messageOverlay->boundingRect().height() / 2 - s.height() / 2);
}
}
if (d->busyWidget && d->busyWidget->isVisible()) {
int busySize = qMin(size().width(), size().height())/3;
QRect busyRect(0, 0, busySize, busySize);
busyRect.moveCenter(boundingRect().center().toPoint());
d->busyWidget->setGeometry(busyRect);
}
if (d->started && layout()) {
layout()->updateGeometry();
}
}
if (c & Plasma::FormFactorConstraint) {
FormFactor f = formFactor();
if (!isContainment() && f != Vertical && f != Horizontal) {
setBackgroundHints(d->backgroundHints | StandardBackground);
} else if(d->backgroundHints & StandardBackground) {
setBackgroundHints(d->backgroundHints ^ StandardBackground);
} else if(d->backgroundHints & TranslucentBackground) {
setBackgroundHints(d->backgroundHints ^ TranslucentBackground);
}
if (d->failed) {
if (f == Vertical || f == Horizontal) {
setMinimumSize(0, 0);
QGraphicsLayoutItem *item = layout()->itemAt(1);
layout()->removeAt(1);
delete item;
}
}
}
if (c & Plasma::SizeConstraint || c & Plasma::FormFactorConstraint) {
if (aspectRatioMode() == Plasma::Square) {
// enforce square size in panels
if (formFactor() == Horizontal) {
setSizePolicy(QSizePolicy(QSizePolicy::Fixed, QSizePolicy::Expanding));
} else if (formFactor() == Vertical) {
setSizePolicy(QSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed));
}
updateGeometry();
} else if (aspectRatioMode() == Plasma::ConstrainedSquare) {
// enforce a constrained square size in panels
if (formFactor() == Horizontal) {
setSizePolicy(QSizePolicy(QSizePolicy::Fixed, QSizePolicy::Expanding));
} else if (formFactor() == Vertical) {
setSizePolicy(QSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed));
}
updateGeometry();
}
}
// now take care of constraints in special subclasses: Contaiment and PopupApplet
Containment* containment = qobject_cast<Plasma::Containment*>(this);
if (isContainment() && containment) {
containment->d->containmentConstraintsEvent(c);
}
PopupApplet* popup = qobject_cast<Plasma::PopupApplet*>(this);
if (popup) {
popup->d->popupConstraintsEvent(c);
}
// pass the constraint on to the actual subclass
constraintsEvent(c);
if (c & StartupCompletedConstraint) {
// start up is done, we can now go do a mod timer
if (d->modificationsTimerId > 0) {
killTimer(d->modificationsTimerId);
}
d->modificationsTimerId = 0;
if (!isContainment()) {
setHasConfigurationInterface(true);
}
}
}
int Applet::type() const
{
return Type;
}
QList<QAction*> Applet::contextualActions()
{
//kDebug() << "empty context actions";
return d->script ? d->script->contextualActions() : QList<QAction*>();
}
QAction *Applet::action(QString name) const
{
return d->actions.action(name);
}
void Applet::addAction(QString name, QAction *action)
{
d->actions.addAction(name, action);
}
void Applet::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
{
if (!d->started) {
kDebug() << "not started";
return;
}
if (transform().isRotating()) {
painter->setRenderHint(QPainter::SmoothPixmapTransform);
painter->setRenderHint(QPainter::Antialiasing);
}
if (d->background &&
formFactor() != Plasma::Vertical &&
formFactor() != Plasma::Horizontal) {
//kDebug() << "option rect is" << option->rect;
d->background->paintFrame(painter);
}
if (d->failed) {
kDebug() << "failed!";
return;
}
qreal left, top, right, bottom;
getContentsMargins(&left, &top, &right, &bottom);
QRect contentsRect = QRectF(QPointF(0, 0),
boundingRect().size()).adjusted(left, top, -right, -bottom).toRect();
if (widget && isContainment()) {
// note that the widget we get is actually the viewport of the view, not the view itself
View* v = qobject_cast<Plasma::View*>(widget->parent());
Containment* c = qobject_cast<Plasma::Containment*>(this);
//update the view transform of the toolbox, since it ignores transforms
if (c && c->d->toolBox) {
if (c->d->toolBox->viewTransform().isScaling() && !v->transform().isScaling()) {
c->d->positionToolBox();
}
if (v) {
c->d->toolBox->setViewTransform(v->transform());
}
}
if (!v || v->isWallpaperEnabled()) {
// paint the wallpaper
if (c && c->drawWallpaper() && c->wallpaper()) {
Wallpaper *w = c->wallpaper();
if (!w->isInitialized()) {
// delayed paper initialization
KConfigGroup wallpaperConfig = c->config();
wallpaperConfig = KConfigGroup(&wallpaperConfig, "Wallpaper");
wallpaperConfig = KConfigGroup(&wallpaperConfig, w->pluginName());
w->restore(wallpaperConfig);
}
painter->save();
c->wallpaper()->paint(painter, option->exposedRect);
painter->restore();
}
// .. and now paint the actual containment interface, but with
// a Containment style option based on the one we get
Containment::StyleOption coption(*option);
coption.view = v;
paintInterface(painter, &coption, contentsRect);
}
} else {
//kDebug() << "paint interface of" << (QObject*) this;
// paint the applet's interface
paintInterface(painter, option, contentsRect);
}
}
void Applet::paintInterface(QPainter *painter, const QStyleOptionGraphicsItem *option, const QRect &contentsRect)
{
if (d->script) {
d->script->paintInterface(painter, option, contentsRect);
} else {
//kDebug() << "Applet::paintInterface() default impl";
}
}
FormFactor Applet::formFactor() const
{
Containment *c = containment();
return c ? c->d->formFactor : Plasma::Planar;
}
Containment *Applet::containment() const
{
if (isContainment()) {
Containment *c = qobject_cast<Containment*>(const_cast<Applet*>(this));
if (c) {
return c;
}
}
QGraphicsItem *parent = parentItem();
Containment *c = 0;
while (parent) {
Containment *possibleC = dynamic_cast<Containment*>(parent);
if (possibleC && possibleC->isContainment()) {
c = possibleC;
break;
}
parent = parent->parentItem();
}
return c;
}
void Applet::setGlobalShortcut(const KShortcut &shortcut)
{
if (!d->activationAction) {
d->activationAction = new KAction(this);
d->activationAction->setText(i18n("Activate %1 Widget", name()));
d->activationAction->setObjectName(QString("activate widget %1").arg(id())); // NO I18N
connect(d->activationAction, SIGNAL(triggered()), this, SIGNAL(activate()));
connect(this, SIGNAL(activate()), this, SLOT(setFocus()));
QList<QWidget *> widgets = d->actions.associatedWidgets();
foreach (QWidget *w, widgets) {
w->addAction(d->activationAction);
}
}
//kDebug() << "before" << shortcut.primary() << d->activationAction->globalShortcut().primary();
d->activationAction->setGlobalShortcut(
shortcut,
KAction::ShortcutTypes(KAction::ActiveShortcut | KAction::DefaultShortcut),
KAction::NoAutoloading);
//kDebug() << "after" << shortcut.primary() << d->activationAction->globalShortcut().primary();
}
KShortcut Applet::globalShortcut() const
{
if (d->activationAction) {
return d->activationAction->globalShortcut();
}
return KShortcut();
}
bool Applet::isPopupShowing() const
{
return false;
}
void Applet::addAssociatedWidget(QWidget *widget)
{
d->actions.addAssociatedWidget(widget);
}
void Applet::removeAssociatedWidget(QWidget *widget)
{
d->actions.removeAssociatedWidget(widget);
}
Location Applet::location() const
{
Containment *c = containment();
return c ? c->d->location : Plasma::Desktop;
}
Context *Applet::context() const
{
Containment *c = containment();
Q_ASSERT(c);
return c->d->context();
}
Plasma::AspectRatioMode Applet::aspectRatioMode() const
{
return d->aspectRatioMode;
}
void Applet::setAspectRatioMode(Plasma::AspectRatioMode mode)
{
d->aspectRatioMode = mode;
}
void Applet::registerAsDragHandle(QGraphicsItem *item)
{
if (!item || d->registeredAsDragHandle.contains(item)) {
return;
}
d->registeredAsDragHandle.insert(item);
item->installSceneEventFilter(this);
}
void Applet::unregisterAsDragHandle(QGraphicsItem *item)
{
if (!item) {
return;
}
if (d->registeredAsDragHandle.remove(item)) {
item->removeSceneEventFilter(this);
}
}
bool Applet::isRegisteredAsDragHandle(QGraphicsItem *item)
{
return d->registeredAsDragHandle.contains(item);
}
bool Applet::hasConfigurationInterface() const
{
return d->hasConfigurationInterface;
}
void Applet::setHasConfigurationInterface(bool hasInterface)
{
if (d->hasConfigurationInterface == hasInterface) {
return;
}
d->hasConfigurationInterface = hasInterface;
//config action
//TODO respect security when it's implemented (4.2)
QAction *configAction = d->actions.action("configure");
if (hasInterface) {
if (!configAction) { //should be always true
configAction = new QAction(i18n("%1 Settings", name()), this);
configAction->setIcon(KIcon("configure"));
configAction->setShortcutContext(Qt::WidgetShortcut); //don't clash with other views
bool unlocked = immutability() == Mutable;
bool canConfig = unlocked || KAuthorized::authorize("PlasmaAllowConfigureWhenLocked");
configAction->setVisible(canConfig);
configAction->setEnabled(canConfig);
if (isContainment()) {
//kDebug() << "I am a containment";
configAction->setShortcut(QKeySequence("ctrl+shift+s"));
} else {
configAction->setShortcut(QKeySequence("ctrl+s"));
}
connect(configAction, SIGNAL(triggered(bool)),
this, SLOT(showConfigurationInterface()));
d->actions.addAction("configure", configAction);
}
} else {
d->actions.removeAction(configAction);
}
}
bool Applet::eventFilter(QObject *o, QEvent *e)
{
return QObject::eventFilter(o, e);
}
bool Applet::sceneEventFilter(QGraphicsItem *watched, QEvent *event)
{
switch (event->type()) {
case QEvent::GraphicsSceneMouseMove:
{
// don't move when the containment is not mutable,
// in the rare case the containment doesn't exists consider it as mutable
if (d->registeredAsDragHandle.contains(watched)) {
Containment *c = containment();
if (!c || c->immutability() == Mutable) {
mouseMoveEvent(static_cast<QGraphicsSceneMouseEvent*>(event));
return true;
}
}
break;
}
default:
break;
}
return QGraphicsItem::sceneEventFilter(watched, event);
}
void Applet::mouseMoveEvent(QGraphicsSceneMouseEvent *event)
{
if (immutability() == Mutable && formFactor() == Plasma::Planar) {
QGraphicsItem *parent = parentItem();
Plasma::Applet *applet = qgraphicsitem_cast<Plasma::Applet*>(parent);
if (applet && applet->isContainment()) {
// our direct parent is a containment. just move ourselves.
QPointF curPos = event->pos();
QPointF lastPos = event->lastPos();
QPointF delta = curPos - lastPos;
moveBy(delta.x(), delta.y());
} else if (parent) {
//don't move the icon as well because our parent
//(usually an appletHandle) will do it for us
//parent->moveBy(delta.x(),delta.y());
QPointF curPos = parent->transform().map(event->pos());
QPointF lastPos = parent->transform().map(event->lastPos());
QPointF delta = curPos - lastPos;
parent->setPos(parent->pos() + delta);
}
}
}
void Applet::focusInEvent(QFocusEvent *event)
{
if (!isContainment() && containment()) {
//focusing an applet may trigger this event again, but we won't be here more than twice
containment()->d->focusApplet(this);
}
QGraphicsWidget::focusInEvent(event);
}
void Applet::resizeEvent(QGraphicsSceneResizeEvent *event)
{
QGraphicsWidget::resizeEvent(event);
if (d->background) {
d->background->resizeFrame(boundingRect().size());
}
updateConstraints(Plasma::SizeConstraint);
d->scheduleModificationNotification();
emit geometryChanged();
}
void Applet::showConfigurationInterface()
{
if (!hasConfigurationInterface()) {
return;
}
if (immutability() != Mutable && !KAuthorized::authorize("PlasmaAllowConfigureWhenLocked")) {
//FIXME: in 4.3 add an explanatory dialog
return;
}
const QString dialogId = QString("%1settings%2").arg(id()).arg(name());
KConfigDialog * dlg = KConfigDialog::exists(dialogId);
if (dlg) {
KWindowSystem::setOnDesktop(dlg->winId(), KWindowSystem::currentDesktop());
dlg->show();
KWindowSystem::activateWindow(dlg->winId());
return;
}
const QString windowTitle = i18nc("@title:window", "%1 Settings", name());
if (d->package && d->configLoader) {
QString uiFile = d->package->filePath("mainconfigui");
if (uiFile.isEmpty()) {
return;
}
KConfigDialog *dialog = new KConfigDialog(0, dialogId, d->configLoader);
dialog->setWindowTitle(windowTitle);
dialog->setAttribute(Qt::WA_DeleteOnClose, true);
QUiLoader loader;
QFile f(uiFile);
if (!f.open(QIODevice::ReadOnly)) {
delete dialog;
if (d->script) {
d->script->showConfigurationInterface();
}
return;
}
QWidget *w = loader.load(&f);
f.close();
dialog->addPage(w, i18n("Settings"), icon(), i18n("%1 Settings", name()));
d->addGlobalShortcutsPage(dialog);
connect(dialog, SIGNAL(applyClicked()), this, SLOT(configDialogFinished()));
connect(dialog, SIGNAL(okClicked()), this, SLOT(configDialogFinished()));
//FIXME: in this case use another ad-hoc slot?
connect(dialog, SIGNAL(finished()), this, SLOT(configDialogFinished()));
dialog->show();
} else if (d->script) {
//FIXME: global shorcuts?
d->script->showConfigurationInterface();
} else {
KConfigSkeleton *nullManager = new KConfigSkeleton(0);
KConfigDialog *dialog = new KConfigDialog(0, dialogId, nullManager);
dialog->setFaceType(KPageDialog::Auto);
dialog->setWindowTitle(windowTitle);
dialog->setAttribute(Qt::WA_DeleteOnClose, true);
createConfigurationInterface(dialog);
d->addGlobalShortcutsPage(dialog);
connect(dialog, SIGNAL(finished()), nullManager, SLOT(deleteLater()));
//TODO: Apply button does not correctly work for now, so do not show it
dialog->showButton(KDialog::Apply, false);
connect(dialog, SIGNAL(applyClicked()), this, SLOT(configDialogFinished()));
connect(dialog, SIGNAL(okClicked()), this, SLOT(configDialogFinished()));
connect(dialog, SIGNAL(finished()), this, SLOT(configDialogFinished()));
dialog->show();
}
emit releaseVisualFocus();
}
void AppletPrivate::addGlobalShortcutsPage(KConfigDialog *dialog)
{
if (isContainment) {
return;
}
QWidget *page = new QWidget;
QVBoxLayout *layout = new QVBoxLayout(page);
if (!shortcutEditor) {
shortcutEditor = new KKeySequenceWidget(page);
QObject::connect(shortcutEditor, SIGNAL(destroyed(QObject*)), q, SLOT(clearShortcutEditorPtr()));
}
shortcutEditor->setKeySequence(q->globalShortcut().primary());
layout->addWidget(shortcutEditor);
layout->addStretch();
dialog->addPage(page, i18n("Keyboard Shortcut"), "preferences-desktop-keyboard");
}
void AppletPrivate::clearShortcutEditorPtr()
{
shortcutEditor = 0;
}
void AppletPrivate::configDialogFinished()
{
if (shortcutEditor) {
QKeySequence sequence = shortcutEditor->keySequence();
if (sequence != q->globalShortcut().primary()) {
q->setGlobalShortcut(KShortcut(sequence));
emit q->configNeedsSaving();
}
}
q->configChanged();
}
void Applet::configChanged()
{
if (d->script) {
d->script->configChanged();
}
}
void Applet::createConfigurationInterface(KConfigDialog *parent)
{
Q_UNUSED(parent)
// virtual method reimplemented by subclasses.
// do not put anything here ...
}
KPluginInfo::List Applet::listAppletInfo(const QString &category,
const QString &parentApp)
{
QString constraint;
if (parentApp.isEmpty()) {
constraint.append("not exist [X-KDE-ParentApp]");
} else {
constraint.append("[X-KDE-ParentApp] == '").append(parentApp).append("'");
}
if (!category.isEmpty()) {
if (!constraint.isEmpty()) {
constraint.append(" and ");
}
constraint.append("[X-KDE-PluginInfo-Category] == '").append(category).append("'");
if (category == "Miscellaneous") {
constraint.append(" or (not exist [X-KDE-PluginInfo-Category] or [X-KDE-PluginInfo-Category] == '')");
}
}
KService::List offers = KServiceTypeTrader::self()->query("Plasma/Applet", constraint);
//kDebug() << "Applet::listAppletInfo constraint was '" << constraint
// << "' which got us " << offers.count() << " matches";
return KPluginInfo::fromServices(offers);
}
KPluginInfo::List Applet::listAppletInfoForMimetype(const QString &mimetype)
{
QString constraint = QString("'%1' in [X-Plasma-DropMimeTypes]").arg(mimetype);
//kDebug() << "listAppletInfoForMimetype with" << mimetype << constraint;
KService::List offers = KServiceTypeTrader::self()->query("Plasma/Applet", constraint);
return KPluginInfo::fromServices(offers);
}
QStringList Applet::listCategories(const QString &parentApp, bool visibleOnly)
{
QString constraint = "exist [X-KDE-PluginInfo-Category]";
if (parentApp.isEmpty()) {
constraint.append(" and not exist [X-KDE-ParentApp]");
} else {
constraint.append(" and [X-KDE-ParentApp] == '").append(parentApp).append("'");
}
KService::List offers = KServiceTypeTrader::self()->query("Plasma/Applet", constraint);
QStringList categories;
foreach (const KService::Ptr &applet, offers) {
QString appletCategory = applet->property("X-KDE-PluginInfo-Category").toString();
if (visibleOnly && applet->noDisplay()) {
// we don't want to show the hidden category
continue;
}
//kDebug() << " and we have " << appletCategory;
if (appletCategory.isEmpty()) {
if (!categories.contains(i18nc("misc category", "Miscellaneous"))) {
categories << i18nc("misc category", "Miscellaneous");
}
} else if (!categories.contains(appletCategory)) {
categories << appletCategory;
}
}
categories.sort();
return categories;
}
Applet *Applet::load(const QString &appletName, uint appletId, const QVariantList &args)
{
if (appletName.isEmpty()) {
return 0;
}
QString constraint = QString("[X-KDE-PluginInfo-Name] == '%1'").arg(appletName);
KService::List offers = KServiceTypeTrader::self()->query("Plasma/Applet", constraint);
bool isContainment = false;
if (offers.isEmpty()) {
//TODO: what would be -really- cool is offer to try and download the applet
// from the network at this point
offers = KServiceTypeTrader::self()->query("Plasma/Containment", constraint);
isContainment = true;
if (offers.isEmpty()) {
kDebug() << "offers is empty for " << appletName;
return 0;
}
} /* else if (offers.count() > 1) {
kDebug() << "hey! we got more than one! let's blindly take the first one";
} */
KService::Ptr offer = offers.first();
if (appletId == 0) {
appletId = ++AppletPrivate::s_maxAppletId;
}
if (!offer->property("X-Plasma-API").toString().isEmpty()) {
kDebug() << "we have a script using the"
<< offer->property("X-Plasma-API").toString() << "API";
if (isContainment) {
return new Containment(0, offer->storageId(), appletId);
}
return new Applet(0, offer->storageId(), appletId);
}
KPluginLoader plugin(*offer);
if (!Plasma::isPluginVersionCompatible(plugin.pluginVersion()) &&
(appletName != "internal:extender")) {
return 0;
}
QVariantList allArgs;
allArgs << offer->storageId() << appletId << args;
QString error;
Applet *applet;
if (appletName == "internal:extender") {
applet = new ExtenderApplet(0, allArgs);
} else {
applet = offer->createInstance<Plasma::Applet>(0, allArgs, &error);
}
if (!applet) {
kDebug() << "Couldn't load applet \"" << appletName << "\"! reason given: " << error;
}
return applet;
}
Applet *Applet::load(const KPluginInfo &info, uint appletId, const QVariantList &args)
{
if (!info.isValid()) {
return 0;
}
return load(info.pluginName(), appletId, args);
}
QVariant Applet::itemChange(GraphicsItemChange change, const QVariant &value)
{
QVariant ret = QGraphicsWidget::itemChange(change, value);
//kDebug() << change;
switch (change) {
case ItemSceneHasChanged:
{
QGraphicsScene *newScene = qvariant_cast<QGraphicsScene*>(value);
if (newScene) {
d->checkImmutability();
}
}
break;
case ItemPositionChange:
return (immutability() == Mutable || formFactor() == Horizontal || formFactor() == Vertical) ? value : pos();
break;
case ItemTransformChange:
return immutability() == Mutable ? value : transform();
break;
case ItemPositionHasChanged:
emit geometryChanged();
// fall through!
case ItemTransformHasChanged:
d->scheduleModificationNotification();
break;
default:
break;
};
return ret;
}
QPainterPath Applet::shape() const
{
if (d->script) {
return d->script->shape();
}
return QGraphicsWidget::shape();
}
QSizeF Applet::sizeHint(Qt::SizeHint which, const QSizeF &constraint) const
{
QSizeF hint = QGraphicsWidget::sizeHint(which, constraint);
//in panels make sure that the contents won't exit from the panel
if (formFactor() == Horizontal && which == Qt::MinimumSize) {
hint.setHeight(0);
} else if (formFactor() == Vertical && which == Qt::MinimumSize) {
hint.setWidth(0);
}
// enforce a square size in panels
if (d->aspectRatioMode == Plasma::Square) {
if (formFactor() == Horizontal) {
hint.setWidth(size().height());
} else if (formFactor() == Vertical) {
hint.setHeight(size().width());
}
} else if (d->aspectRatioMode == Plasma::ConstrainedSquare) {
//enforce a size not wider than tall
if (formFactor() == Horizontal &&
(which == Qt::MaximumSize || size().height() <= KIconLoader::SizeLarge)) {
hint.setWidth(size().height());
//enforce a size not taller than wide
} else if (formFactor() == Vertical &&
(which == Qt::MaximumSize || size().width() <= KIconLoader::SizeLarge)) {
hint.setHeight(size().width());
}
}
return hint;
}
void Applet::hoverEnterEvent(QGraphicsSceneHoverEvent *event)
{
Q_UNUSED(event)
}
void Applet::hoverLeaveEvent(QGraphicsSceneHoverEvent *event)
{
Q_UNUSED(event)
}
void Applet::timerEvent(QTimerEvent *event)
{
if (d->transient) {
killTimer(d->constraintsTimerId);
killTimer(d->modificationsTimerId);
return;
}
if (event->timerId() == d->constraintsTimerId) {
killTimer(d->constraintsTimerId);
d->constraintsTimerId = 0;
// Don't flushPendingConstraints if we're just starting up
// flushPendingConstraints will be called by Corona
if(!(d->pendingConstraints & Plasma::StartupCompletedConstraint)) {
flushPendingConstraintsEvents();
}
} else if (event->timerId() == d->modificationsTimerId) {
killTimer(d->modificationsTimerId);
d->modificationsTimerId = 0;
// invalid group, will result in save using the default group
KConfigGroup cg;
save(cg);
emit configNeedsSaving();
}
}
QRect Applet::screenRect() const
{
QGraphicsView *v = view();
if (v) {
QPointF bottomRight = pos();
bottomRight.rx() += size().width();
bottomRight.ry() += size().height();
QPoint tL = v->mapToGlobal(v->mapFromScene(pos()));
QPoint bR = v->mapToGlobal(v->mapFromScene(bottomRight));
return QRect(QPoint(tL.x(), tL.y()), QSize(bR.x() - tL.x(), bR.y() - tL.y()));
}
//The applet doesn't have a view on it.
//So a screenRect isn't relevant.
return QRect(QPoint(0, 0), QSize(0, 0));
}
void Applet::raise()
{
setZValue(++AppletPrivate::s_maxZValue);
}
void Applet::lower()
{
setZValue(--AppletPrivate::s_minZValue);
}
void AppletPrivate::setIsContainment(bool nowIsContainment)
{
if (isContainment == nowIsContainment) {
return;
}
isContainment = nowIsContainment;
Containment *c = qobject_cast<Containment*>(q);
if (c) {
if (isContainment) {
// set up the toolbox
c->d->createToolBox();
} else {
delete c->d->toolBox;
c->d->toolBox = 0;
}
}
}
bool Applet::isContainment() const
{
return d->isContainment;
}
// PRIVATE CLASS IMPLEMENTATION
AppletPrivate::AppletPrivate(KService::Ptr service, int uniqueID, Applet *applet)
: appletId(uniqueID),
q(applet),
extender(0),
backgroundHints(Applet::StandardBackground),
appletDescription(service),
messageOverlay(0),
busyWidget(0),
background(0),
script(0),
package(0),
configLoader(0),
mainConfig(0),
pendingConstraints(NoConstraint),
aspectRatioMode(Plasma::KeepAspectRatio),
immutability(Mutable),
actions(applet),
activationAction(0),
shortcutEditor(0),
constraintsTimerId(0),
modificationsTimerId(-1),
hasConfigurationInterface(false),
failed(false),
isContainment(false),
transient(false),
needsConfig(false),
started(false)
{
if (appletId == 0) {
appletId = ++s_maxAppletId;
} else if (appletId > s_maxAppletId) {
s_maxAppletId = appletId;
}
}
AppletPrivate::~AppletPrivate()
{
modificationsTimerId = -1;
if (activationAction && activationAction->isGlobalShortcutEnabled()) {
//kDebug() << "reseting global action for" << q->name() << activationAction->objectName();
activationAction->forgetGlobalShortcut();
}
foreach (const QString &engine, loadedEngines) {
DataEngineManager::self()->unloadEngine(engine);
}
if (extender) {
delete extender;
extender = 0;
}
delete script;
script = 0;
delete package;
package = 0;
delete configLoader;
configLoader = 0;
delete mainConfig;
mainConfig = 0;
}
void AppletPrivate::init()
{
// WARNING: do not access config() OR globalConfig() in this method!
// that requires a scene, which is not available at this point
q->setCacheMode(Applet::DeviceCoordinateCache);
q->setAcceptsHoverEvents(true);
q->setFlag(QGraphicsItem::ItemIsFocusable, true);
q->setFocusPolicy(Qt::ClickFocus);
// FIXME: adding here because nothing seems to be doing it in QGraphicsView,
// but it doesn't actually work anyways =/
q->setLayoutDirection(qApp->layoutDirection());
if (!appletDescription.isValid()) {
kDebug() << "Check your constructor! "
<< "You probably want to be passing in a Service::Ptr "
<< "or a QVariantList with a valid storageid as arg[0].";
return;
}
QString api = appletDescription.property("X-Plasma-API").toString();
// we have a scripted plasmoid
if (!api.isEmpty()) {
// find where the Package is
QString path = KStandardDirs::locate(
"data",
"plasma/plasmoids/" + appletDescription.pluginName() + '/');
if (path.isEmpty()) {
q->setFailedToLaunch(
true,
i18nc("Package file, name of the widget",
"Could not locate the %1 package required for the %2 widget.",
appletDescription.pluginName(), appletDescription.name()));
} else {
// create the package and see if we have something real
//kDebug() << "trying for" << path;
PackageStructure::Ptr structure =
Plasma::packageStructure(api, Plasma::AppletComponent);
structure->setPath(path);
package = new Package(path, structure);
if (package->isValid()) {
// now we try and set up the script engine.
// it will be parented to this applet and so will get
// deleted when the applet does
script = Plasma::loadScriptEngine(api, q);
if (!script) {
delete package;
package = 0;
q->setFailedToLaunch(true,
i18nc("API or programming language the widget was written in, name of the widget",
"Could not create a %1 ScriptEngine for the %2 widget.",
api, appletDescription.name()));
}
} else {
q->setFailedToLaunch(true, i18nc("Package file, name of the widget",
"Could not open the %1 package required for the %2 widget.",
appletDescription.pluginName(), appletDescription.name()));
delete package;
package = 0;
}
if (package) {
setupScriptSupport();
}
}
}
q->setBackgroundHints(Applet::DefaultBackground);
QObject::connect(Plasma::Theme::defaultTheme(), SIGNAL(themeChanged()), q, SLOT(themeChanged()));
}
// put all setup routines for script here. at this point we can assume that
// package exists and that we have a script engine
void AppletPrivate::setupScriptSupport()
{
Q_ASSERT(package);
QString xmlPath = package->filePath("mainconfigxml");
if (!xmlPath.isEmpty()) {
QFile file(xmlPath);
// FIXME: KConfigSkeleton doesn't play well with KConfigGroup =/
KConfigGroup config = q->config();
configLoader = new ConfigLoader(&config, &file);
QObject::connect(configLoader, SIGNAL(configChanged()), q, SLOT(configChanged()));
}
if (!package->filePath("mainconfigui").isEmpty()) {
q->setHasConfigurationInterface(true);
}
//set a default size before any saved settings are read
QSize size = appletDescription.property("X-Plasma-DefaultSize").toSize();
if (size.isEmpty()) {
size = QSize(200,200);
}
//kDebug() << "size" << size;
q->resize(size);
}
QString AppletPrivate::globalName() const
{
if (!appletDescription.isValid()) {
return QString();
}
return appletDescription.service()->library();
}
QString AppletPrivate::instanceName()
{
if (!appletDescription.isValid()) {
return QString();
}
return appletDescription.service()->library() + QString::number(appletId);
}
void AppletPrivate::scheduleConstraintsUpdate(Plasma::Constraints c)
{
// Don't start up a timer if we're just starting up
// flushPendingConstraints will be called by Corona
if (started && !constraintsTimerId && !(c & Plasma::StartupCompletedConstraint)) {
constraintsTimerId = q->startTimer(0);
}
if (c & Plasma::StartupCompletedConstraint) {
started = true;
}
pendingConstraints |= c;
}
void AppletPrivate::scheduleModificationNotification()
{
// modificationsTimerId is -1 until we get our notice of being started
if (modificationsTimerId != -1) {
// schedule a save
if (modificationsTimerId) {
q->killTimer(modificationsTimerId);
}
modificationsTimerId = q->startTimer(1000);
}
}
KConfigGroup *AppletPrivate::mainConfigGroup()
{
if (mainConfig) {
return mainConfig;
}
if (isContainment) {
Corona *corona = qobject_cast<Corona*>(q->scene());
KConfigGroup containmentConfig;
//kDebug() << "got a corona, baby?" << (QObject*)corona;
if (corona) {
containmentConfig = KConfigGroup(corona->config(), "Containments");
} else {
containmentConfig = KConfigGroup(KGlobal::config(), "Containments");
}
mainConfig = new KConfigGroup(&containmentConfig, QString::number(appletId));
} else {
KConfigGroup appletConfig;
if (q->containment()) {
appletConfig = q->containment()->config();
appletConfig = KConfigGroup(&appletConfig, "Applets");
} else {
kWarning() << "requesting config for" << q->name() << "without a containment!";
appletConfig = KConfigGroup(KGlobal::config(), "Applets");
}
mainConfig = new KConfigGroup(&appletConfig, QString::number(appletId));
}
return mainConfig;
}
QString AppletPrivate::visibleFailureText(const QString &reason)
{
QString text;
if (reason.isEmpty()) {
text = i18n("This object could not be created.");
} else {
text = i18n("This object could not be created for the following reason:<p><b>%1</b></p>", reason);
}
return text;
}
void AppletPrivate::checkImmutability()
{
const bool systemImmutable = q->globalConfig().isImmutable() || q->config().isImmutable() ||
((!isContainment && q->containment()) &&
q->containment()->immutability() == SystemImmutable) ||
(qobject_cast<Corona*>(q->scene()) && static_cast<Corona*>(q->scene())->immutability() == SystemImmutable);
if (systemImmutable) {
q->updateConstraints(ImmutableConstraint);
}
}
void AppletPrivate::themeChanged()
{
if (background) {
//do again the translucent background fallback
q->setBackgroundHints(backgroundHints);
qreal left;
qreal right;
qreal top;
qreal bottom;
background->getMargins(left, top, right, bottom);
q->setContentsMargins(left, right, top, bottom);
}
q->update();
}
void AppletPrivate::resetConfigurationObject()
{
// make sure mainConfigGroup exists in all cases
mainConfigGroup();
mainConfig->deleteGroup();
delete mainConfig;
mainConfig = 0;
}
uint AppletPrivate::s_maxAppletId = 0;
uint AppletPrivate::s_maxZValue = 0;
uint AppletPrivate::s_minZValue = 0;
PackageStructure::Ptr AppletPrivate::packageStructure(0);
AppletOverlayWidget::AppletOverlayWidget(QGraphicsWidget *parent)
: QGraphicsWidget(parent)
{
resize(parent->size());
}
void AppletOverlayWidget::paint(QPainter *painter,
const QStyleOptionGraphicsItem *option,
QWidget *widget)
{
Q_UNUSED(option)
Q_UNUSED(widget)
painter->setRenderHint(QPainter::Antialiasing);
QColor wash = Plasma::Theme::defaultTheme()->color(Theme::BackgroundColor);
wash.setAlphaF(.6);
Applet *applet = qobject_cast<Applet *>(parentWidget());
if (applet->backgroundHints() & Applet::StandardBackground) {
painter->fillRect(parentWidget()->contentsRect(), wash);
} else {
painter->fillPath(parentItem()->shape(), wash);
}
}
} // Plasma namespace
#include "applet.moc"
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