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plasma-framework/private/containment_p.cpp
Marco Martin f65d8b2abb move all ContainmentPrivate impl in own file
2012-07-17 14:21:45 +02:00

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/*
* Copyright 2007 by Aaron Seigo <aseigo@kde.org>
* Copyright 2008 by Ménard Alexis <darktears31@gmail.com>
* Copyright 2009 Chani Armitage <chani@kde.org>
* Copyright 2012 Marco Martin <notmart@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 "private/containment_p.h"
#include <QApplication>
#include <QClipboard>
#include <QGraphicsSceneDragDropEvent>
#include <QMimeData>
#include <QMimeDatabase>
#include <QGraphicsView>
#include <qtemporaryfile.h>
#include <kaction.h>
#include <kactioncollection.h>
#include <kcoreauthorized.h>
#include <kurlmimedata.h>
#include <kwindowsystem.h>
#ifndef PLASMA_NO_KIO
#include "kio/jobclasses.h" // for KIO::JobFlags
#include "kio/job.h"
#include "kio/scheduler.h"
#endif
#include "abstracttoolbox.h"
#include "containmentactions.h"
#include "containmentactionspluginsconfig.h"
#include "corona.h"
#include "pluginloader.h"
#include "svg.h"
#include "wallpaper.h"
#include "remote/accessappletjob.h"
#include "remote/accessmanager.h"
#include "private/applet_p.h"
#include "private/containmentactionspluginsconfig_p.h"
#include "private/wallpaper_p.h"
namespace Plasma
{
bool ContainmentPrivate::s_positioningPanels = false;
QHash<QString, ContainmentActions*> ContainmentPrivate::globalActionPlugins;
const char ContainmentPrivate::defaultWallpaper[] = "image";
const char ContainmentPrivate::defaultWallpaperMode[] = "SingleImage";
void ContainmentPrivate::addDefaultActions(KActionCollection *actions, Containment *c)
{
actions->setConfigGroup("Shortcuts-Containment");
//adjust applet actions
KAction *appAction = qobject_cast<KAction*>(actions->action("remove"));
appAction->setShortcut(KShortcut("alt+d, alt+r"));
if (c && c->d->isPanelContainment()) {
appAction->setText(i18n("Remove this Panel"));
} else {
appAction->setText(i18n("Remove this Activity"));
}
appAction = qobject_cast<KAction*>(actions->action("configure"));
if (appAction) {
appAction->setShortcut(KShortcut("alt+d, alt+s"));
appAction->setText(i18n("Activity Settings"));
}
//add our own actions
KAction *appletBrowserAction = actions->addAction("add widgets");
appletBrowserAction->setAutoRepeat(false);
appletBrowserAction->setText(i18n("Add Widgets..."));
appletBrowserAction->setIcon(KDE::icon("list-add"));
appletBrowserAction->setShortcut(KShortcut("alt+d, a"));
appletBrowserAction->setData(AbstractToolBox::AddTool);
KAction *action = actions->addAction("next applet");
action->setText(i18n("Next Widget"));
//no icon
action->setShortcut(KShortcut("alt+d, n"));
action->setData(AbstractToolBox::ControlTool);
action = actions->addAction("previous applet");
action->setText(i18n("Previous Widget"));
//no icon
action->setShortcut(KShortcut("alt+d, p"));
action->setData(AbstractToolBox::ControlTool);
}
void ContainmentPrivate::initApplets()
{
foreach (Applet *applet, applets) {
applet->restore(*applet->d->mainConfigGroup());
applet->init();
#ifndef NDEBUG
kDebug() << "!!{} STARTUP TIME" << QTime().msecsTo(QTime::currentTime()) << "Applet" << applet->name();
#endif
}
q->flushPendingConstraintsEvents();
foreach (Applet *applet, applets) {
applet->flushPendingConstraintsEvents();
}
#ifndef NDEBUG
kDebug() << "!!{} STARTUP TIME" << QTime().msecsTo(QTime::currentTime()) << "Containment's applets initialized" << q->name();
#endif
}
void ContainmentPrivate::checkContainmentFurniture()
{
if (q->isContainment() &&
(type == Containment::DesktopContainment || type == Containment::PanelContainment)) {
createToolBox();
}
}
void ContainmentPrivate::addContainmentActions(KMenu &desktopMenu, QEvent *event)
{
if (static_cast<Corona*>(q->scene())->immutability() != Mutable &&
!KAuthorized::authorizeKAction("plasma/containment_actions")) {
//kDebug() << "immutability";
return;
}
const QString trigger = ContainmentActions::eventToString(event);
prepareContainmentActions(trigger, QPoint(), &desktopMenu);
}
void ContainmentPrivate::addAppletActions(KMenu &desktopMenu, Applet *applet, QEvent *event)
{
foreach (QAction *action, applet->contextualActions()) {
if (action) {
desktopMenu.addAction(action);
}
}
if (!applet->d->failed) {
QAction *configureApplet = applet->d->actions->action("configure");
if (configureApplet && configureApplet->isEnabled()) {
desktopMenu.addAction(configureApplet);
}
QAction *runAssociatedApplication = applet->d->actions->action("run associated application");
if (runAssociatedApplication && runAssociatedApplication->isEnabled()) {
desktopMenu.addAction(runAssociatedApplication);
}
}
KMenu *containmentMenu = new KMenu(i18nc("%1 is the name of the containment", "%1 Options", q->name()), &desktopMenu);
addContainmentActions(*containmentMenu, event);
if (!containmentMenu->isEmpty()) {
int enabled = 0;
//count number of real actions
QListIterator<QAction *> actionsIt(containmentMenu->actions());
while (enabled < 3 && actionsIt.hasNext()) {
QAction *action = actionsIt.next();
if (action->isVisible() && !action->isSeparator()) {
++enabled;
}
}
if (enabled) {
//if there is only one, don't create a submenu
if (enabled < 2) {
foreach (QAction *action, containmentMenu->actions()) {
if (action->isVisible() && !action->isSeparator()) {
desktopMenu.addAction(action);
}
}
} else {
desktopMenu.addMenu(containmentMenu);
}
}
}
if (q->immutability() == Mutable) {
QAction *closeApplet = applet->d->actions->action("remove");
//kDebug() << "checking for removal" << closeApplet;
if (closeApplet) {
if (!desktopMenu.isEmpty()) {
desktopMenu.addSeparator();
}
//kDebug() << "adding close action" << closeApplet->isEnabled() << closeApplet->isVisible();
desktopMenu.addAction(closeApplet);
}
}
}
Applet* ContainmentPrivate::appletAt(const QPointF &point)
{
Applet *applet = 0;
QGraphicsItem *item = q->scene()->itemAt(point);
if (item == q) {
item = 0;
}
while (item) {
if (item->isWidget()) {
applet = qobject_cast<Applet*>(static_cast<QGraphicsWidget*>(item));
if (applet) {
if (applet->isContainment()) {
applet = 0;
}
break;
}
}
AppletHandle *handle = dynamic_cast<AppletHandle*>(item);
if (handle) {
//pretend it was on the applet
applet = handle->applet();
break;
}
item = item->parentItem();
}
return applet;
}
void ContainmentPrivate::setScreen(int newScreen, int newDesktop, bool preventInvalidDesktops)
{
// What we want to do in here is:
// * claim the screen as our own
// * signal whatever may be watching this containment about the switch
// * if we are a full screen containment, then:
// * resize to match the screen if we're that kind of containment
// * kick other full-screen containments off this screen
// * if we had a screen, then give our screen to the containment
// we kick out
//
// a screen of -1 means no associated screen.
Corona *corona = q->corona();
Q_ASSERT(corona);
//if it's an offscreen widget, don't allow to claim a screen, after all it's *off*screen
if (corona->offscreenWidgets().contains(q)) {
return;
}
int numScreens = corona->numScreens();
if (newScreen < -1) {
newScreen = -1;
}
// -1 == All desktops
if (newDesktop < -1 || (preventInvalidDesktops && newDesktop > KWindowSystem::numberOfDesktops() - 1)) {
newDesktop = -1;
}
//kDebug() << activity() << "setting screen to " << newScreen << newDesktop << "and type is" << type;
Containment *swapScreensWith(0);
const bool isDesktopContainment = type == Containment::DesktopContainment ||
type == Containment::CustomContainment;
if (isDesktopContainment) {
// we want to listen to changes in work area if our screen changes
if (toolBox) {
if (screen < 0 && newScreen > -1) {
QObject::connect(KWindowSystem::self(), SIGNAL(workAreaChanged()), toolBox.data(), SLOT(reposition()), Qt::UniqueConnection);
} else if (newScreen < 0) {
QObject::disconnect(KWindowSystem::self(), SIGNAL(workAreaChanged()), toolBox.data(), SLOT(reposition()));
}
}
if (newScreen > -1) {
// sanity check to make sure someone else doesn't have this screen already!
Containment *currently = corona->containmentForScreen(newScreen, newDesktop);
if (currently && currently != q) {
#ifndef NDEBUG
kDebug() << "currently is on screen" << currently->screen()
<< "desktop" << currently->desktop()
<< "and is" << currently->activity()
<< (QObject*)currently << "i'm" << (QObject*)q;
#endif
currently->setScreen(-1, currently->desktop());
swapScreensWith = currently;
}
}
}
if (newScreen < numScreens && newScreen > -1 && isDesktopContainment) {
q->resize(corona->screenGeometry(newScreen).size());
}
int oldDesktop = desktop;
desktop = newDesktop;
int oldScreen = screen;
screen = newScreen;
q->updateConstraints(Plasma::ScreenConstraint);
if (oldScreen != newScreen || oldDesktop != newDesktop) {
/*
#ifndef NDEBUG
kDebug() << "going to signal change for" << q
#endif
<< ", old screen & desktop:" << oldScreen << oldDesktop
<< ", new:" << screen << desktop;
*/
KConfigGroup c = q->config();
c.writeEntry("screen", screen);
c.writeEntry("desktop", desktop);
if (newScreen != -1) {
lastScreen = newScreen;
lastDesktop = newDesktop;
c.writeEntry("lastScreen", lastScreen);
c.writeEntry("lastDesktop", lastDesktop);
}
emit q->configNeedsSaving();
emit q->screenChanged(oldScreen, newScreen, q);
}
if (swapScreensWith) {
//kDebug() << "setScreen due to swap, part 2";
swapScreensWith->setScreen(oldScreen, oldDesktop);
}
checkRemoveAction();
if (newScreen >= 0) {
emit q->activate();
}
}
void ContainmentPrivate::showDropZoneDelayed()
{
dropZoneStarted = true;
q->showDropZone(dropPoints.value(0).toPoint());
dropPoints.remove(0);
}
void ContainmentPrivate::dropData(QPointF scenePos, QPoint screenPos, QGraphicsSceneDragDropEvent *dropEvent)
{
if (q->immutability() != Mutable) {
return;
}
QPointF pos = q->mapFromScene(scenePos);
const QMimeData *mimeData = 0;
if (dropEvent) {
mimeData = dropEvent->mimeData();
} else {
QClipboard *clipboard = QApplication::clipboard();
mimeData = clipboard->mimeData(QClipboard::Selection);
//TODO if that's not supported (ie non-linux) should we try clipboard instead of selection?
}
if (!mimeData) {
//Selection is either empty or not supported on this OS
#ifndef NDEBUG
kDebug() << "no mime data";
#endif
return;
}
//kDebug() << event->mimeData()->text();
QString appletMimetype(q->corona() ? q->corona()->appletMimeType() : QString());
if (!appletMimetype.isEmpty() && mimeData->hasFormat(appletMimetype)) {
QString data = mimeData->data(appletMimetype);
const QStringList appletNames = data.split('\n', QString::SkipEmptyParts);
foreach (const QString &appletName, appletNames) {
//kDebug() << "doing" << appletName;
QRectF geom(pos, QSize(0, 0));
q->addApplet(appletName, QVariantList(), geom);
}
if (dropEvent) {
dropEvent->acceptProposedAction();
}
} else if (mimeData->hasUrls()) {
//TODO: collect the mimeTypes of available script engines and offer
// to create widgets out of the matching URLs, if any
const QList<QUrl> urls = KUrlMimeData::urlsFromMimeData(mimeData);
foreach (const QUrl &url, urls) {
if (AccessManager::supportedProtocols().contains(url.scheme())) {
AccessAppletJob *job = AccessManager::self()->accessRemoteApplet(url);
if (dropEvent) {
dropPoints[job] = dropEvent->pos();
} else {
dropPoints[job] = scenePos;
}
QObject::connect(AccessManager::self(), SIGNAL(finished(Plasma::AccessAppletJob*)),
q, SLOT(remoteAppletReady(Plasma::AccessAppletJob*)));
}
#ifndef PLASMA_NO_KIO
else {
QMimeDatabase db;
QMimeType mime = db.mimeTypeForUrl(url);
QString mimeName = mime.name();
QRectF geom(pos, QSize());
QVariantList args;
args << url.toString();
#ifndef NDEBUG
kDebug() << "can decode" << mimeName << args;
#endif
// It may be a directory or a file, let's stat
KIO::JobFlags flags = KIO::HideProgressInfo;
KIO::MimetypeJob *job = KIO::mimetype(url, flags);
if (dropEvent) {
dropPoints[job] = dropEvent->pos();
} else {
dropPoints[job] = scenePos;
}
QObject::connect(job, SIGNAL(result(KJob*)), q, SLOT(dropJobResult(KJob*)));
QObject::connect(job, SIGNAL(mimetype(KIO::Job*,QString)),
q, SLOT(mimeTypeRetrieved(KIO::Job*,QString)));
KMenu *choices = new KMenu("Content dropped");
choices->addAction(KDE::icon("process-working"), i18n("Fetching file type..."));
if (dropEvent) {
choices->popup(dropEvent->screenPos());
} else {
choices->popup(screenPos);
}
dropMenus[job] = choices;
}
#endif
}
if (dropEvent) {
dropEvent->acceptProposedAction();
}
} else {
QStringList formats = mimeData->formats();
QHash<QString, KPluginInfo> seenPlugins;
QHash<QString, QString> pluginFormats;
foreach (const QString &format, formats) {
KPluginInfo::List plugins = Applet::listAppletInfoForMimeType(format);
foreach (const KPluginInfo &plugin, plugins) {
if (seenPlugins.contains(plugin.pluginName())) {
continue;
}
seenPlugins.insert(plugin.pluginName(), plugin);
pluginFormats.insert(plugin.pluginName(), format);
}
}
//kDebug() << "Mimetype ..." << formats << seenPlugins.keys() << pluginFormats.values();
QString selectedPlugin;
if (seenPlugins.isEmpty()) {
// do nothing
} else if (seenPlugins.count() == 1) {
selectedPlugin = seenPlugins.constBegin().key();
} else {
KMenu choices;
QHash<QAction *, QString> actionsToPlugins;
foreach (const KPluginInfo &info, seenPlugins) {
QAction *action;
if (!info.icon().isEmpty()) {
action = choices.addAction(KDE::icon(info.icon()), info.name());
} else {
action = choices.addAction(info.name());
}
actionsToPlugins.insert(action, info.pluginName());
}
QAction *choice = choices.exec(screenPos);
if (choice) {
selectedPlugin = actionsToPlugins[choice];
}
}
if (!selectedPlugin.isEmpty()) {
if (!dropEvent) {
// since we may have entered an event loop up above with the menu,
// the clipboard item may no longer be valid, as QClipboard resets
// the object behind the back of the application with a zero timer
// so we fetch it again here
QClipboard *clipboard = QApplication::clipboard();
mimeData = clipboard->mimeData(QClipboard::Selection);
}
QTemporaryFile tempFile;
if (mimeData && tempFile.open()) {
//TODO: what should we do with files after the applet is done with them??
tempFile.setAutoRemove(false);
{
QDataStream stream(&tempFile);
QByteArray data = mimeData->data(pluginFormats[selectedPlugin]);
stream.writeRawData(data, data.size());
}
QRectF geom(pos, QSize());
QVariantList args;
args << tempFile.fileName();
#ifndef NDEBUG
kDebug() << args;
#endif
tempFile.close();
q->addApplet(selectedPlugin, args, geom);
}
}
}
}
void ContainmentPrivate::clearDataForMimeJob(KIO::Job *job)
{
#ifndef PLASMA_NO_KIO
QObject::disconnect(job, 0, q, 0);
dropPoints.remove(job);
KMenu *choices = dropMenus.take(job);
delete choices;
job->kill();
#endif // PLASMA_NO_KIO
}
void ContainmentPrivate::remoteAppletReady(Plasma::AccessAppletJob *job)
{
QPointF pos = dropPoints.take(job);
if (job->error()) {
//TODO: nice user visible error handling (knotification probably?)
#ifndef NDEBUG
kDebug() << "remote applet access failed: " << job->errorText();
#endif
return;
}
if (!job->applet()) {
#ifndef NDEBUG
kDebug() << "how did we end up here? if applet is null, the job->error should be nonzero";
#endif
return;
}
q->addApplet(job->applet(), pos);
}
void ContainmentPrivate::dropJobResult(KJob *job)
{
#ifndef PLASMA_NO_KIO
KIO::TransferJob* tjob = dynamic_cast<KIO::TransferJob*>(job);
if (!tjob) {
#ifndef NDEBUG
kDebug() << "job is not a KIO::TransferJob, won't handle the drop...";
#endif
clearDataForMimeJob(tjob);
return;
}
if (job->error()) {
#ifndef NDEBUG
kDebug() << "ERROR" << tjob->error() << ' ' << tjob->errorString();
#endif
}
// We call mimeTypeRetrieved since there might be other mechanisms
// for finding suitable applets. Cleanup happens there as well.
mimeTypeRetrieved(qobject_cast<KIO::Job *>(job), QString());
#endif // PLASMA_NO_KIO
}
void ContainmentPrivate::mimeTypeRetrieved(KIO::Job *job, const QString &mimeType)
{
#ifndef PLASMA_NO_KIO
#ifndef NDEBUG
kDebug() << "Mimetype Job returns." << mimeType;
#endif
KIO::TransferJob* tjob = dynamic_cast<KIO::TransferJob*>(job);
if (!tjob) {
#ifndef NDEBUG
kDebug() << "job should be a TransferJob, but isn't";
#endif
clearDataForMimeJob(job);
return;
}
KPluginInfo::List appletList = Applet::listAppletInfoForUrl(tjob->url());
if (mimeType.isEmpty() && !appletList.count()) {
clearDataForMimeJob(job);
#ifndef NDEBUG
kDebug() << "No applets found matching the url (" << tjob->url() << ") or the mimeType (" << mimeType << ")";
#endif
return;
} else {
QPointF posi; // will be overwritten with the event's position
if (dropPoints.keys().contains(tjob)) {
posi = dropPoints[tjob];
#ifndef NDEBUG
kDebug() << "Received a suitable dropEvent at" << posi;
#endif
} else {
#ifndef NDEBUG
kDebug() << "Bailing out. Cannot find associated dropEvent related to the TransferJob";
#endif
clearDataForMimeJob(job);
return;
}
KMenu *choices = dropMenus.value(tjob);
if (!choices) {
#ifndef NDEBUG
kDebug() << "Bailing out. No QMenu found for this job.";
#endif
clearDataForMimeJob(job);
return;
}
QVariantList args;
args << tjob->url().toString() << mimeType;
#ifndef NDEBUG
kDebug() << "Creating menu for:" << mimeType << posi << args;
#endif
appletList << Applet::listAppletInfoForMimeType(mimeType);
KPluginInfo::List wallpaperList;
if (drawWallpaper) {
if (wallpaper && wallpaper->supportsMimetype(mimeType)) {
wallpaperList << wallpaper->d->wallpaperDescription;
} else {
wallpaperList = Wallpaper::listWallpaperInfoForMimetype(mimeType);
}
}
if (!appletList.isEmpty() || !wallpaperList.isEmpty()) {
choices->clear();
QHash<QAction *, QString> actionsToApplets;
choices->addTitle(i18n("Widgets"));
foreach (const KPluginInfo &info, appletList) {
#ifndef NDEBUG
kDebug() << info.name();
#endif
QAction *action;
if (!info.icon().isEmpty()) {
action = choices->addAction(KDE::icon(info.icon()), info.name());
} else {
action = choices->addAction(info.name());
}
actionsToApplets.insert(action, info.pluginName());
#ifndef NDEBUG
kDebug() << info.pluginName();
#endif
}
actionsToApplets.insert(choices->addAction(i18n("Icon")), "icon");
QHash<QAction *, QString> actionsToWallpapers;
if (!wallpaperList.isEmpty()) {
choices->addTitle(i18n("Wallpaper"));
QMap<QString, KPluginInfo> sorted;
foreach (const KPluginInfo &info, appletList) {
sorted.insert(info.name(), info);
}
foreach (const KPluginInfo &info, wallpaperList) {
QAction *action;
if (!info.icon().isEmpty()) {
action = choices->addAction(KDE::icon(info.icon()), info.name());
} else {
action = choices->addAction(info.name());
}
actionsToWallpapers.insert(action, info.pluginName());
}
}
QAction *choice = choices->exec();
if (choice) {
// Put the job on hold so it can be recycled to fetch the actual content,
// which is to be expected when something's dropped onto the desktop and
// an applet is to be created with this URL
if (!mimeType.isEmpty() && !tjob->error()) {
tjob->putOnHold();
KIO::Scheduler::publishSlaveOnHold();
}
QString plugin = actionsToApplets.value(choice);
if (plugin.isEmpty()) {
//set wallpapery stuff
plugin = actionsToWallpapers.value(choice);
if (!wallpaper || plugin != wallpaper->pluginName()) {
//kDebug() << "Wallpaper dropped:" << tjob->url();
q->setWallpaper(plugin);
}
if (wallpaper) {
//kDebug() << "Wallpaper dropped:" << tjob->url();
wallpaper->addUrls(QList<QUrl>() << tjob->url());
}
} else {
addApplet(actionsToApplets[choice], args, QRectF(posi, QSize()));
}
clearDataForMimeJob(job);
return;
}
} else {
// we can at least create an icon as a link to the URL
addApplet("icon", args, QRectF(posi, QSize()));
}
}
clearDataForMimeJob(job);
#endif // PLASMA_NO_KIO
}
KActionCollection* ContainmentPrivate::actions()
{
return static_cast<Applet*>(q)->d->actions;
}
void ContainmentPrivate::focusApplet(Plasma::Applet *applet)
{
if (focusedApplet == applet) {
return;
}
QList<QWidget *> widgets = actions()->associatedWidgets();
if (focusedApplet) {
foreach (QWidget *w, widgets) {
focusedApplet->removeAssociatedWidget(w);
}
}
if (applet && applets.contains(applet)) {
//kDebug() << "switching to" << applet->name();
focusedApplet = applet;
foreach (QWidget *w, widgets) {
focusedApplet->addAssociatedWidget(w);
}
if (!focusedApplet->hasFocus()) {
focusedApplet->setFocus(Qt::ShortcutFocusReason);
}
} else {
focusedApplet = 0;
}
}
void ContainmentPrivate::configChanged()
{
if (drawWallpaper) {
KConfigGroup group = q->config();
q->setWallpaper(group.readEntry("wallpaperplugin", defaultWallpaper),
group.readEntry("wallpaperpluginmode", defaultWallpaperMode));
}
}
void ContainmentPrivate::requestConfiguration()
{
emit q->configureRequested(q);
}
void ContainmentPrivate::checkStatus(Plasma::ItemStatus appletStatus)
{
//kDebug() << "================== "<< appletStatus << q->status();
if (appletStatus == q->status()) {
emit q->newStatus(appletStatus);
return;
}
if (appletStatus < q->status()) {
// check to see if any other applet has a higher status, and stick with that
// if we do
foreach (Applet *applet, applets) {
if (applet->status() > appletStatus) {
appletStatus = applet->status();
}
}
}
q->setStatus(appletStatus);
}
void ContainmentPrivate::createToolBox()
{
if (!toolBox && KAuthorized::authorizeKAction("plasma/containment_context_menu")) {
toolBox = Plasma::AbstractToolBox::load(q->corona()->preferredToolBoxPlugin(type), QVariantList(), q);
if (toolBox) {
QObject::connect(toolBox.data(), SIGNAL(toggled()), q, SIGNAL(toolBoxToggled()));
QObject::connect(toolBox.data(), SIGNAL(toggled()), q, SLOT(updateToolBoxVisibility()));
positionToolBox();
}
}
}
void ContainmentPrivate::positionToolBox()
{
if (toolBox) {
toolBox.data()->reposition();
}
}
void ContainmentPrivate::updateToolBoxVisibility()
{
emit q->toolBoxVisibilityChanged(toolBox.data()->isShowing());
}
void ContainmentPrivate::triggerShowAddWidgets()
{
emit q->showAddWidgetsInterface(QPointF());
}
void ContainmentPrivate::containmentConstraintsEvent(Plasma::Constraints constraints)
{
if (!q->isContainment()) {
return;
}
//kDebug() << "got containmentConstraintsEvent" << constraints << (QObject*)toolBox;
if (constraints & Plasma::ImmutableConstraint) {
//update actions
checkRemoveAction();
const bool unlocked = q->immutability() == Mutable;
q->setAcceptDrops(unlocked);
q->enableAction("add widgets", unlocked);
// tell the applets too
foreach (Applet *a, applets) {
a->setImmutability(q->immutability());
a->updateConstraints(ImmutableConstraint);
}
}
// pass on the constraints that are relevant here
Constraints appletConstraints = NoConstraint;
if (constraints & FormFactorConstraint) {
appletConstraints |= FormFactorConstraint;
}
if (constraints & ScreenConstraint) {
appletConstraints |= ScreenConstraint;
}
if (appletConstraints != NoConstraint) {
foreach (Applet *applet, applets) {
applet->updateConstraints(appletConstraints);
}
}
if (toolBox && (constraints & Plasma::SizeConstraint ||
constraints & Plasma::FormFactorConstraint ||
constraints & Plasma::ScreenConstraint ||
constraints & Plasma::StartupCompletedConstraint)) {
//kDebug() << "Positioning toolbox";
positionToolBox();
}
if (constraints & Plasma::StartupCompletedConstraint && type < Containment::CustomContainment) {
q->addToolBoxAction(q->action("remove"));
checkRemoveAction();
}
}
Applet *ContainmentPrivate::addApplet(const QString &name, const QVariantList &args,
const QRectF &appletGeometry, uint id, bool delayInit)
{
if (!q->isContainment()) {
return 0;
}
if (!delayInit && q->immutability() != Mutable) {
#ifndef NDEBUG
kDebug() << "addApplet for" << name << "requested, but we're currently immutable!";
#endif
return 0;
}
QGraphicsView *v = q->view();
if (v) {
v->setCursor(Qt::BusyCursor);
}
Applet *applet = PluginLoader::self()->loadApplet(name, id, args);
if (v) {
v->unsetCursor();
}
if (!applet) {
#ifndef NDEBUG
kDebug() << "Applet" << name << "could not be loaded.";
#endif
applet = new Applet(0, QString(), id);
applet->setFailedToLaunch(true, i18n("Could not find requested component: %1", name));
}
//kDebug() << applet->name() << "sizehint:" << applet->sizeHint() << "geometry:" << applet->geometry();
q->addApplet(applet, appletGeometry.topLeft(), delayInit);
return applet;
}
bool ContainmentPrivate::regionIsEmpty(const QRectF &region, Applet *ignoredApplet) const
{
foreach (Applet *applet, applets) {
if (applet != ignoredApplet && applet->geometry().intersects(region)) {
return false;
}
}
return true;
}
void ContainmentPrivate::appletDestroyed(Plasma::Applet *applet)
{
applets.removeAll(applet);
if (focusedApplet == applet) {
focusedApplet = 0;
}
emit q->appletRemoved(applet);
emit q->configNeedsSaving();
}
void ContainmentPrivate::appletAppeared(Applet *applet)
{
//kDebug() << type << Containment::DesktopContainment;
KConfigGroup *cg = applet->d->mainConfigGroup();
applet->save(*cg);
emit q->configNeedsSaving();
}
void ContainmentPrivate::positionPanel(bool force)
{
if (!q->scene()) {
#ifndef NDEBUG
kDebug() << "no scene yet";
#endif
return;
}
// already positioning the panel - avoid infinite loops
if (ContainmentPrivate::s_positioningPanels) {
return;
}
// we position panels in negative coordinates, and stack all horizontal
// and all vertical panels with each other.
const QPointF p = q->pos();
if (!force &&
p.y() + q->size().height() < -INTER_CONTAINMENT_MARGIN &&
q->scene()->collidingItems(q).isEmpty()) {
// already positioned and not running into any other panels
return;
}
QPointF newPos = preferredPanelPos(q->corona());
if (p != newPos) {
ContainmentPrivate::s_positioningPanels = true;
q->setPos(newPos);
ContainmentPrivate::s_positioningPanels = false;
}
}
bool ContainmentPrivate::isPanelContainment() const
{
return type == Containment::PanelContainment || type == Containment::CustomPanelContainment;
}
QPointF ContainmentPrivate::preferredPos(Corona *corona) const
{
Q_ASSERT(corona);
if (isPanelContainment()) {
//kDebug() << "is a panel, so put it at" << preferredPanelPos(corona);
return preferredPanelPos(corona);
}
QPointF pos(0, 0);
QTransform t;
while (QGraphicsItem *i = corona->itemAt(pos, t)) {
pos.setX(i->scenePos().x() + i->boundingRect().width() + 10);
}
//kDebug() << "not a panel, put it at" << pos;
return pos;
}
QPointF ContainmentPrivate::preferredPanelPos(Corona *corona) const
{
Q_ASSERT(corona);
//TODO: research how non-Horizontal, non-Vertical (e.g. Planar) panels behave here
bool horiz = formFactor == Plasma::Horizontal;
qreal bottom = horiz ? 0 : VERTICAL_STACKING_OFFSET;
qreal lastHeight = 0;
// this should be ok for small numbers of panels, but if we ever end
// up managing hundreds of them, this simplistic alogrithm will
// likely be too slow.
foreach (const Containment *other, corona->containments()) {
if (other == q ||
!other->d->isPanelContainment() ||
horiz != (other->formFactor() == Plasma::Horizontal)) {
// only line up with panels of the same orientation
continue;
}
if (horiz) {
qreal y = other->pos().y();
if (y < bottom) {
lastHeight = other->size().height();
bottom = y;
}
} else {
qreal width = other->size().width();
qreal x = other->pos().x() + width;
if (x > bottom) {
lastHeight = width;
bottom = x + lastHeight;
}
}
}
// give a space equal to the height again of the last item so there is
// room to grow.
QPointF newPos;
if (horiz) {
bottom -= lastHeight + INTER_CONTAINMENT_MARGIN;
//TODO: fix x position for non-flush-left panels
#ifndef NDEBUG
kDebug() << "moved to" << QPointF(0, bottom - q->size().height());
#endif
newPos = QPointF(0, bottom - q->size().height());
} else {
bottom += lastHeight + INTER_CONTAINMENT_MARGIN;
//TODO: fix y position for non-flush-top panels
#ifndef NDEBUG
kDebug() << "moved to" << QPointF(bottom + q->size().width(), -INTER_CONTAINMENT_MARGIN - q->size().height());
#endif
newPos = QPointF(bottom + q->size().width(), -INTER_CONTAINMENT_MARGIN - q->size().height());
}
return newPos;
}
bool ContainmentPrivate::prepareContainmentActions(const QString &trigger, const QPoint &screenPos, KMenu *menu)
{
ContainmentActions *plugin = actionPlugins()->value(trigger);
if (!plugin) {
return false;
}
plugin->setContainment(q);
if (!plugin->isInitialized()) {
KConfigGroup cfg = q->containmentActionsConfig();
KConfigGroup pluginConfig = KConfigGroup(&cfg, trigger);
plugin->restore(pluginConfig);
}
if (plugin->configurationRequired()) {
KMenu *localMenu = menu ? menu : new KMenu();
localMenu->addTitle(i18n("This plugin needs to be configured"));
localMenu->addAction(q->action("configure"));
if (!menu) {
localMenu->exec(screenPos);
delete localMenu;
}
return false;
} else if (menu) {
QList<QAction*> actions = plugin->contextualActions();
if (actions.isEmpty()) {
//it probably didn't bother implementing the function. give the user a chance to set
//a better plugin. note that if the user sets no-plugin this won't happen...
if (!isPanelContainment() && q->action("configure")) {
menu->addAction(q->action("configure"));
}
} else {
menu->addActions(actions);
}
}
return true;
}
QHash<QString, ContainmentActions*> * ContainmentPrivate::actionPlugins()
{
switch (containmentActionsSource) {
case Activity:
//FIXME
case Local:
return &localActionPlugins;
default:
return &globalActionPlugins;
}
}
}
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