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plasma-framework/applet.cpp

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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()
{
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
{
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) {
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;
const Containment *c = containment();
QString group = isContainment() ? "ContainmentGlobals" : "AppletGlobals";
if (c && c->corona()) {
KSharedConfig::Ptr coronaConfig = c->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 {
connect(Animator::self(), SIGNAL(animationFinished(QGraphicsItem*,Plasma::Animator::Animation)),
this, SLOT(appletAnimationComplete(QGraphicsItem*,Plasma::Animator::Animation)));
Animator::self()->animateItem(this, Animator::DisappearAnimation);
}
}
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
{
Q_ASSERT(containment());
Q_ASSERT(containment()->corona());
return containment()->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 (dynamic_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);
//FIXME: this thing seems necessary for some applets, others not
configWidget->setZValue(999);
} 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);
}
if (!KAuthorized::authorize("PlasmaAllowConfigureWhenLocked")) {
action = d->actions.action("configure");
if (action) {
action->setVisible(unlocked);
action->setEnabled(unlocked);
}
}
}
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;
}
}
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) {
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 = dynamic_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();
}
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
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(configChanged()));
connect(dialog, SIGNAL(okClicked()), this, SLOT(configChanged()));
//FIXME: in this case use another ad-hoc slot?
connect(dialog, SIGNAL(finished()), this, SLOT(configChanged()));
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(configChanged()));
connect(dialog, SIGNAL(okClicked()), this, SLOT(configChanged()));
connect(dialog, SIGNAL(finished()), this, SLOT(configChanged()));
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 Applet::configChanged()
{
if (d->script) {
d->script->configChanged();
}
if (d->shortcutEditor) {
QKeySequence sequence = d->shortcutEditor->keySequence();
if (sequence != globalShortcut().primary()) {
setGlobalShortcut(KShortcut(sequence));
emit configNeedsSaving();
}
}
}
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 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);
}
}
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) {
const Containment *asContainment = qobject_cast<Containment*>(const_cast<Applet*>(q));
Q_ASSERT(asContainment);
KConfigGroup containmentConfig;
//kDebug() << "got a corona, baby?" << (QObject*)asContainment->corona();
if (asContainment->corona()) {
containmentConfig = KConfigGroup(asContainment->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) ||
(dynamic_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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