plasma-framework/containmentactions.cpp

398 lines
12 KiB
C++
Raw Normal View History

/*
* Copyright (c) 2009 Chani Armitage <chani@kde.org>
*
* 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 "containmentactions.h"
#include "containment.h"
#include "private/dataengineconsumer_p.h"
#include "private/packages_p.h"
#include "private/containmentactions_p.h"
#include "private/containment_p.h"
#include <QMetaEnum>
#include <QMouseEvent>
#include <QWheelEvent>
#include <QGraphicsSceneContextMenuEvent>
#include <QGraphicsSceneMouseEvent>
#include <QGraphicsSceneWheelEvent>
#include <kdebug.h>
#include <kglobal.h>
#include <kservicetypetrader.h>
#include <kstandarddirs.h>
#include <version.h>
namespace Plasma
{
PackageStructure::Ptr ContainmentActionsPrivate::s_packageStructure(0);
ContainmentActions::ContainmentActions(QObject * parentObject)
: d(new ContainmentActionsPrivate(KService::serviceByStorageId(QString()), this))
{
setParent(parentObject);
}
ContainmentActions::ContainmentActions(QObject *parentObject, const QVariantList &args)
: d(new ContainmentActionsPrivate(KService::serviceByStorageId(args.count() > 0 ?
args[0].toString() : QString()), this))
{
// now remove first item since those are managed by Wallpaper 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();
}
setParent(parentObject);
}
ContainmentActions::~ContainmentActions()
{
delete d;
}
KPluginInfo::List ContainmentActions::listContainmentActionsInfo()
{
QString constraint;
KService::List offers = KServiceTypeTrader::self()->query("Plasma/ContainmentActions", constraint);
return KPluginInfo::fromServices(offers);
}
ContainmentActions *ContainmentActions::load(Containment *parent, const QString &containmentActionsName, const QVariantList &args)
{
if (!parent) {
return 0;
}
if (containmentActionsName.isEmpty()) {
return 0;
}
QString constraint = QString("[X-KDE-PluginInfo-Name] == '%1'").arg(containmentActionsName);
KService::List offers = KServiceTypeTrader::self()->query("Plasma/ContainmentActions", constraint);
if (offers.isEmpty()) {
kDebug() << "offers is empty for " << containmentActionsName;
return 0;
}
KService::Ptr offer = offers.first();
KPluginLoader plugin(*offer);
if (!Plasma::isPluginVersionCompatible(plugin.pluginVersion())) {
return 0;
}
QVariantList allArgs;
allArgs << offer->storageId() << args;
QString error;
ContainmentActions *containmentActions = offer->createInstance<Plasma::ContainmentActions>(parent, allArgs, &error);
if (!containmentActions) {
kDebug() << "Couldn't load containmentActions \"" << containmentActionsName << "\"! reason given: " << error;
}
return containmentActions;
}
ContainmentActions *ContainmentActions::load(Containment *parent, const KPluginInfo &info, const QVariantList &args)
{
if (!info.isValid()) {
return 0;
}
return load(parent, info.pluginName(), args);
}
PackageStructure::Ptr ContainmentActions::packageStructure()
{
if (!ContainmentActionsPrivate::s_packageStructure) {
ContainmentActionsPrivate::s_packageStructure = new ContainmentActionsPackage();
}
return ContainmentActionsPrivate::s_packageStructure;
}
Containment *ContainmentActions::containment()
{
return qobject_cast<Containment*>(parent());
}
QString ContainmentActions::name() const
{
if (!d->containmentActionsDescription.isValid()) {
return i18n("Unknown ContainmentActions");
}
return d->containmentActionsDescription.name();
}
QString ContainmentActions::icon() const
{
if (!d->containmentActionsDescription.isValid()) {
return QString();
}
return d->containmentActionsDescription.icon();
}
QString ContainmentActions::pluginName() const
{
if (!d->containmentActionsDescription.isValid()) {
return QString();
}
return d->containmentActionsDescription.pluginName();
}
bool ContainmentActions::isInitialized() const
{
return d->initialized;
}
void ContainmentActions::restore(const KConfigGroup &config)
{
init(config);
d->initialized = true;
}
void ContainmentActions::init(const KConfigGroup &config)
{
Q_UNUSED(config);
}
void ContainmentActions::save(KConfigGroup &config)
{
Q_UNUSED(config);
}
QWidget *ContainmentActions::createConfigurationInterface(QWidget *parent)
{
Q_UNUSED(parent);
return 0;
}
void ContainmentActions::configurationAccepted()
{
//do nothing by default
}
void ContainmentActions::contextEvent(QEvent *event)
{
Q_UNUSED(event)
}
QList<QAction*> ContainmentActions::contextualActions()
{
//empty list
return QList<QAction*>();
}
DataEngine *ContainmentActions::dataEngine(const QString &name) const
{
return d->dataEngine(name);
}
bool ContainmentActions::configurationRequired() const
{
return d->needsConfig;
}
void ContainmentActions::setConfigurationRequired(bool needsConfig)
{
//TODO: reason?
d->needsConfig = needsConfig;
}
QString ContainmentActions::eventToString(QEvent *event)
{
QString trigger;
Qt::KeyboardModifiers modifiers;
switch (event->type()) {
case QEvent::MouseButtonPress:
case QEvent::MouseButtonRelease:
{
QMouseEvent *e = static_cast<QMouseEvent*>(event);
int m = QObject::staticQtMetaObject.indexOfEnumerator("MouseButtons");
QMetaEnum mouse = QObject::staticQtMetaObject.enumerator(m);
trigger += mouse.valueToKey(e->button());
modifiers = e->modifiers();
break;
}
case QEvent::GraphicsSceneMousePress:
case QEvent::GraphicsSceneMouseRelease:
case QEvent::GraphicsSceneMouseDoubleClick:
{
QGraphicsSceneMouseEvent *e = static_cast<QGraphicsSceneMouseEvent*>(event);
int m = QObject::staticQtMetaObject.indexOfEnumerator("MouseButtons");
QMetaEnum mouse = QObject::staticQtMetaObject.enumerator(m);
trigger += mouse.valueToKey(e->button());
modifiers = e->modifiers();
break;
}
case QEvent::Wheel:
{
QWheelEvent *e = static_cast<QWheelEvent*>(event);
int o = QObject::staticQtMetaObject.indexOfEnumerator("Orientations");
QMetaEnum orient = QObject::staticQtMetaObject.enumerator(o);
trigger = "wheel:";
trigger += orient.valueToKey(e->orientation());
modifiers = e->modifiers();
break;
}
case QEvent::GraphicsSceneWheel:
{
QGraphicsSceneWheelEvent *e = static_cast<QGraphicsSceneWheelEvent*>(event);
int o = QObject::staticQtMetaObject.indexOfEnumerator("Orientations");
QMetaEnum orient = QObject::staticQtMetaObject.enumerator(o);
trigger = "wheel:";
trigger += orient.valueToKey(e->orientation());
modifiers = e->modifiers();
break;
}
case QEvent::GraphicsSceneContextMenu:
case QEvent::ContextMenu:
{
int m = QObject::staticQtMetaObject.indexOfEnumerator("MouseButtons");
QMetaEnum mouse = QObject::staticQtMetaObject.enumerator(m);
trigger = mouse.valueToKey(Qt::RightButton);
modifiers = Qt::NoModifier;
break;
}
default:
return QString();
}
int k = QObject::staticQtMetaObject.indexOfEnumerator("KeyboardModifiers");
QMetaEnum kbd = QObject::staticQtMetaObject.enumerator(k);
trigger += ';';
trigger += kbd.valueToKeys(modifiers);
return trigger;
}
void ContainmentActions::paste(QPointF scenePos, QPoint screenPos)
{
Containment *c = containment();
if (c) {
c->d->dropData(scenePos, screenPos);
}
}
QPoint screenPosFromEvent(QEvent *event)
{
switch (event->type()) {
case QEvent::GraphicsSceneMousePress:
case QEvent::GraphicsSceneMouseRelease:
case QEvent::GraphicsSceneMouseDoubleClick:
return static_cast<QGraphicsSceneMouseEvent*>(event)->screenPos();
break;
case QEvent::GraphicsSceneWheel:
return static_cast<QGraphicsSceneWheelEvent*>(event)->screenPos();
break;
case QEvent::GraphicsSceneContextMenu:
return static_cast<QGraphicsSceneContextMenuEvent*>(event)->screenPos();
break;
default:
break;
}
return QPoint();
}
QPointF scenePosFromEvent(QEvent *event)
{
switch (event->type()) {
case QEvent::GraphicsSceneMousePress:
case QEvent::GraphicsSceneMouseRelease:
case QEvent::GraphicsSceneMouseDoubleClick:
return static_cast<QGraphicsSceneMouseEvent*>(event)->scenePos();
break;
case QEvent::GraphicsSceneWheel:
return static_cast<QGraphicsSceneWheelEvent*>(event)->scenePos();
break;
case QEvent::GraphicsSceneContextMenu:
return static_cast<QGraphicsSceneContextMenuEvent*>(event)->scenePos();
break;
default:
break;
}
return QPoint();
}
bool isNonSceneEvent(QEvent *event)
{
return dynamic_cast<QGraphicsSceneEvent *>(event) == 0;
}
QPoint ContainmentActions::popupPosition(const QSize &s, QEvent *event)
{
if (isNonSceneEvent(event)) {
return screenPosFromEvent(event);
}
Containment *c = containment();
if (!c) {
return screenPosFromEvent(event);
}
Applet *applet = c->d->appletAt(scenePosFromEvent(event));
QPoint screenPos = screenPosFromEvent(event);
QPoint pos = screenPos;
if (applet && containment()->d->isPanelContainment()) {
pos = applet->popupPosition(s);
if (event->type() != QEvent::GraphicsSceneContextMenu ||
static_cast<QGraphicsSceneContextMenuEvent *>(event)->reason() == QGraphicsSceneContextMenuEvent::Mouse) {
// if the menu pops up way away from the mouse press, then move it
// to the mouse press
if (c->formFactor() == Vertical) {
if (pos.y() + s.height() < screenPos.y()) {
pos.setY(screenPos.y());
}
} else if (c->formFactor() == Horizontal) {
if (pos.x() + s.width() < screenPos.x()) {
pos.setX(screenPos.x());
}
}
}
}
return pos;
}
bool ContainmentActions::event(QEvent *e)
{
if (e->type() == QEvent::ParentChange) {
if (!containment()) {
//some fool took away our containment. run away, run away!
deleteLater();
}
}
return false;
}
} // Plasma namespace
#include "containmentactions.moc"