plasma-framework/appletbrowser.cpp

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/*
* Copyright (C) 2007 Ivan Cukic <ivan.cukic+kde@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Library/Lesser General Public License
* version 2, or (at your option) any later version, as published by the
* Free Software Foundation
*
* 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/Lesser 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 "plasma/appletbrowser.h"
#include <QVBoxLayout>
#include <QLabel>
#include <KAction>
#include <KConfig>
#include <KConfigGroup>
#include <KMenu>
#include <KPageWidgetItem>
#include <KPushButton>
#include <KServiceTypeTrader>
#include <KStandardAction>
#include <knewstuff2/engine.h>
#include "plasma/applet.h"
#include "plasma/corona.h"
#include "plasma/containment.h"
#include "plasma/appletbrowser/kcategorizeditemsview_p.h"
#include "plasma/appletbrowser/plasmaappletitemmodel_p.h"
#include "plasma/appletbrowser/openwidgetassistant_p.h"
namespace Plasma
{
class AppletBrowserWidgetPrivate
{
public:
AppletBrowserWidgetPrivate(AppletBrowserWidget* w)
: q(w),
containment(0),
appletList(0),
config("plasmarc"),
configGroup(&config, "Applet Browser"),
itemModel(configGroup, w),
filterModel(w)
{
}
void initFilters();
void init();
void initRunningApplets();
void containmentDestroyed();
/**
* Tracks a new running applet
*/
void appletAdded(Plasma::Applet* applet);
/**
* A running applet is no more
*/
void appletRemoved(Plasma::Applet* applet);
AppletBrowserWidget *q;
QString application;
Plasma::Containment *containment;
KCategorizedItemsView *appletList;
QHash<QString, int> runningApplets; // applet name => count
//extra hash so we can look up the names of deleted applets
QHash<Plasma::Applet*, QString> appletNames;
KConfig config;
KConfigGroup configGroup;
PlasmaAppletItemModel itemModel;
KCategorizedItemsViewModels::DefaultFilterModel filterModel;
};
void AppletBrowserWidgetPrivate::initFilters()
{
filterModel.clear();
filterModel.addFilter(i18n("All Widgets"),
KCategorizedItemsViewModels::Filter(), KIcon("plasma"));
// Recommended emblems and filters
QRegExp rx("recommended[.]([0-9A-Za-z]+)[.]caption");
QMapIterator<QString, QString> i(configGroup.entryMap());
while (i.hasNext()) {
i.next();
if (!rx.exactMatch(i.key())) {
continue;
}
//kDebug() << "These are the key/vals in rc file " << rx.cap(1) << "\n";
QString id = rx.cap(1);
QString caption = configGroup.readEntry("recommended." + id + ".caption");
QString icon = configGroup.readEntry("recommended." + id + ".icon");
QString plugins = configGroup.readEntry("recommended." + id + ".plugins");
appletList->addEmblem(i18n("Recommended by %1", caption), KIcon(icon),
KCategorizedItemsViewModels::Filter("recommended." + id, true));
filterModel.addFilter(i18n("Recommended by %1", caption),
KCategorizedItemsViewModels::Filter("recommended." + id, true), KIcon(icon));
}
// Filters: Special
filterModel.addFilter(i18n("My Favorite Widgets"),
KCategorizedItemsViewModels::Filter("favorite", true),
KIcon("bookmarks"));
filterModel.addFilter(i18n("Widgets I Have Used Before"),
KCategorizedItemsViewModels::Filter("used", true),
KIcon("view-history"));
filterModel.addFilter(i18n("Currently Running Widgets"),
KCategorizedItemsViewModels::Filter("running", true),
KIcon("view-history"));
filterModel.addSeparator(i18n("Categories:"));
foreach (const QString& category, Plasma::Applet::listCategories(application)) {
filterModel.addFilter(category,
KCategorizedItemsViewModels::Filter("category", category));
}
}
AppletBrowserWidget::AppletBrowserWidget(QWidget * parent, Qt::WindowFlags f)
: QWidget(parent, f),
d(new AppletBrowserWidgetPrivate(this))
{
d->init();
}
AppletBrowserWidget::~AppletBrowserWidget()
{
delete d;
}
void AppletBrowserWidgetPrivate::init()
{
QVBoxLayout *layout = new QVBoxLayout(q);
appletList = new KCategorizedItemsView(q);
QObject::connect(appletList, SIGNAL(doubleClicked(const QModelIndex &)), q, SLOT(addApplet()));
layout->addWidget(appletList);
// Other Emblems
appletList->addEmblem(i18n("Widgets I Have Used Before"), KIcon("view-history"),
KCategorizedItemsViewModels::Filter("used", true));
initFilters();
appletList->setFilterModel(&filterModel);
// Other models
appletList->setItemModel(&itemModel);
initRunningApplets();
q->setLayout(layout);
}
void AppletBrowserWidgetPrivate::initRunningApplets()
{
//get applets from corona, count them, send results to model
if (!containment) {
return;
}
//kDebug() << runningApplets.count();
Plasma::Corona *c = containment->corona();
//we've tried our best to get a corona
//we don't want just one containment, we want them all
if (!c) {
kDebug() << "can't happen";
return;
}
appletNames.clear();
runningApplets.clear();
QList<Containment*> containments = c->containments();
foreach (Containment *containment, containments) {
QObject::connect(containment, SIGNAL(appletAdded(Plasma::Applet*,QPointF)), q, SLOT(appletAdded(Plasma::Applet*)));
QObject::connect(containment, SIGNAL(appletRemoved(Plasma::Applet*)), q, SLOT(appletRemoved(Plasma::Applet*)));
foreach (Applet *applet, containment->applets()) {
runningApplets[applet->name()]++;
}
}
//kDebug() << runningApplets;
itemModel.setRunningApplets(runningApplets);
}
void AppletBrowserWidget::setApplication(const QString& app)
{
d->application = app;
d->initFilters();
d->itemModel.setApplication(app);
//FIXME: AFAIK this shouldn't be necessary ... but here it is. need to find out what in that
// maze of models and views is screwing up
d->appletList->setItemModel(&d->itemModel);
//kDebug() << d->runningApplets;
d->itemModel.setRunningApplets(d->runningApplets);
}
QString AppletBrowserWidget::application()
{
return d->application;
}
void AppletBrowserWidget::setContainment(Plasma::Containment *containment)
{
if (d->containment != containment) {
if (d->containment) {
d->containment->disconnect(this);
}
d->containment = containment;
if (d->containment) {
connect(d->containment, SIGNAL(destroyed(QObject*)), this, SLOT(containmentDestroyed()));
}
d->initRunningApplets();
}
}
Containment *AppletBrowserWidget::containment() const
{
return d->containment;
}
void AppletBrowserWidgetPrivate::containmentDestroyed()
{
containment = 0;
}
void AppletBrowserWidget::addApplet()
{
if (!d->containment) {
return;
}
foreach (AbstractItem *item, d->appletList->selectedItems()) {
PlasmaAppletItem *selectedItem = (PlasmaAppletItem *) item;
//kDebug() << "Adding applet " << selectedItem->name() << "to containment";
d->containment->addApplet(selectedItem->pluginName(), selectedItem->arguments());
}
}
void AppletBrowserWidgetPrivate::appletAdded(Plasma::Applet* applet)
{
QString name = applet->name();
//kDebug() << name;
runningApplets[name]++;
appletNames.insert(applet, name);
itemModel.setRunningApplets(name, runningApplets[name]);
}
void AppletBrowserWidgetPrivate::appletRemoved(Plasma::Applet* applet)
{
//kDebug() << (QObject*)applet;
Plasma::Applet* a = (Plasma::Applet*)applet; //don't care if it's valid, just need the address
QString name = appletNames.take(a);
int count = 0;
if (runningApplets.contains(name)) {
count = runningApplets[name] - 1;
if (count < 1) {
runningApplets.remove(name);
} else {
runningApplets[name] = count;
}
}
itemModel.setRunningApplets(name, count);
}
void AppletBrowserWidget::destroyApplets(const QString &name)
{
if (!d->containment) {
return;
}
Plasma::Corona *c = d->containment->corona();
//we've tried our best to get a corona
//we don't want just one containment, we want them all
if (!c) {
kDebug() << "can't happen";
return;
}
foreach (Containment *containment, c->containments()) {
QList<Applet*> applets = containment->applets();
foreach (Applet *applet, applets) {
if (applet->name() == name) {
d->appletNames.remove(applet);
applet->disconnect(this);
applet->destroy();
}
}
}
d->runningApplets.remove(name);
d->itemModel.setRunningApplets(name, 0);
}
void AppletBrowserWidget::downloadWidgets()
{
KNS::Engine engine(0);
if (engine.init("plasmoids.knsrc")) {
KNS::Entry::List entries = engine.downloadDialogModal(this);
}
}
void AppletBrowserWidget::openWidgetFile()
{
// TODO: if we already have one of these showing and the user clicks to add it again, show the same window?
OpenWidgetAssistant *assistant = new OpenWidgetAssistant(topLevelWidget());
assistant->setAttribute(Qt::WA_DeleteOnClose, true);
assistant->show();
}
class AppletBrowserPrivate
{
public:
void init(AppletBrowser*);
AppletBrowserWidget *widget;
};
AppletBrowser::AppletBrowser(QWidget * parent, Qt::WindowFlags f)
: KDialog(parent, f),
d(new AppletBrowserPrivate)
{
d->init(this);
}
void AppletBrowserPrivate::init(AppletBrowser *q)
{
widget = new AppletBrowserWidget(q);
q->setMainWidget(widget);
q->setWindowTitle(i18n("Widgets"));
q->setButtons(KDialog::Apply | KDialog::Close | KDialog::User1);
q->setButtonText(KDialog::Apply, i18n("Add Widget"));
q->setButtonText(KDialog::User1, i18n("Install New Widgets"));
KMenu *widgetsMenu = new KMenu(i18n("Get New Widgets"), q);
QAction *action = new QAction(KIcon("applications-internet"),
i18n("Download From Internet"), q);
QObject::connect(action, SIGNAL(triggered(bool)), widget, SLOT(downloadWidgets()));
widgetsMenu->addAction(action);
action = new QAction(KIcon("applications-internet"),
i18n("Install From File..."), q);
QObject::connect(action, SIGNAL(triggered(bool)), widget, SLOT(openWidgetFile()));
widgetsMenu->addAction(action);
q->button(KDialog::User1)->setMenu(widgetsMenu);
q->setButtonToolTip(KDialog::Close, i18n("Close the dialog"));
q->setButtonWhatsThis(KDialog::Close, i18n("<qt>When clicking <b>Close</b>, this dialog will be closed with no further action taken.</qt>"));
q->setButtonToolTip(KDialog::Apply, i18n("Add selected widgets"));
q->setButtonWhatsThis(KDialog::Apply, i18n("<qt>When clicking <b>Add Widget</b>, the selected widgets will be added to your desktop.</qt>"));
q->setButtonToolTip(KDialog::User1, i18n("Install new widgets"));
q->setButtonWhatsThis(KDialog::User1, i18n("<qt>Selecting <b>Get New Widgets</b> will show a window that allows you to download new widgets directly from the Internet, while Install From File allows you to add new widgets from files you have on disk.</qt>"));
QObject::connect(q, SIGNAL(applyClicked()), widget, SLOT(addApplet()));
q->setInitialSize(QSize(400, 600));
KConfigGroup cg(KGlobal::config(), "PlasmaAppletBrowserDialog");
q->restoreDialogSize(cg);
}
AppletBrowser::~AppletBrowser()
{
KConfigGroup cg(KGlobal::config(), "PlasmaAppletBrowserDialog");
saveDialogSize(cg);
}
void AppletBrowser::setApplication(const QString& app)
{
d->widget->setApplication( app );
}
QString AppletBrowser::application()
{
return d->widget->application();
}
void AppletBrowser::setContainment(Plasma::Containment *containment)
{
d->widget->setContainment(containment);
}
Containment* AppletBrowser::containment() const
{
return d->widget->containment();
}
} // namespace Plasma
#include "appletbrowser.moc"