plasma-framework/appletbrowser/openwidgetassistant.cpp
Laurent Montel 210f9032ff Fix crash when we don't select an item
svn path=/trunk/KDE/kdebase/workspace/libs/plasma/; revision=818001
2008-06-07 11:31:16 +00:00

188 lines
6.7 KiB
C++

/*
* Copyright (C) 2008 Aaron Seigo <aseigo@kde.org>
*
* 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/openwidgetassistant_p.h"
#include <QLabel>
#include <QVBoxLayout>
#include <KDebug>
#include <kfilewidget.h>
#include <KListWidget>
#include <KService>
#include <KServiceTypeTrader>
#include <KStandardDirs>
#include "plasma/packagestructure.h"
namespace Plasma
{
OpenWidgetAssistant::OpenWidgetAssistant(QWidget *parent)
: KAssistantDialog(parent),
m_fileDialog(0),
m_filePageWidget(0)
{
QWidget *selectWidget = new QWidget(this);
QVBoxLayout *selectLayout = new QVBoxLayout(selectWidget);
QLabel *selectLabel = new QLabel(selectWidget);
selectLabel->setText(i18n("Select the type of widget to install from the list below."));
m_widgetTypeList = new KListWidget(selectWidget);
m_widgetTypeList->setSelectionMode(QAbstractItemView::SingleSelection);
//m_widgetTypeList->setSelectionBehavior(QAbstractItemView::SelectItems);
connect(m_widgetTypeList, SIGNAL(itemActivated(QListWidgetItem*)), this, SLOT(next()));
connect(m_widgetTypeList, SIGNAL(itemSelectionChanged ()), this, SLOT(slotItemChanged()));
QString constraint("'Applet' in [X-Plasma-ComponentTypes] and exist [X-Plasma-PackageFormat]");
KService::List offers = KServiceTypeTrader::self()->query("Plasma/ScriptEngine", constraint);
QListWidgetItem * item = new QListWidgetItem(KIcon("plasma"), i18n("Plasmoid: Native plasma widget"), m_widgetTypeList);
item->setSelected(true);
m_widgetTypeList->setCurrentItem(item);
foreach (const KService::Ptr &offer, offers) {
QString text(offer->name());
if (!offer->comment().isEmpty()) {
text.append(": ").append(offer->comment());
}
item = new QListWidgetItem(text, m_widgetTypeList);
item->setData(PackageStructureRole, offer->property("X-KDE-PluginInfo-Name"));
if (!offer->icon().isEmpty()) {
item->setIcon(KIcon(offer->icon()));
}
}
selectLayout->addWidget(selectLabel);
selectLayout->addWidget(m_widgetTypeList);
m_typePage = new KPageWidgetItem(selectWidget, i18n("Install New Widget From File"));
m_typePage->setIcon(KIcon("plasma"));
addPage(m_typePage);
m_filePageWidget = new QWidget(this);
m_filePage = new KPageWidgetItem(m_filePageWidget, i18n("Select File"));
addPage(m_filePage);
connect(this, SIGNAL(currentPageChanged(KPageWidgetItem*,KPageWidgetItem*)), SLOT(prepPage(KPageWidgetItem*,KPageWidgetItem*)));
connect(this, SIGNAL(user1Clicked()), this, SLOT(finished()));
enableButton( KDialog::Help, false );
//connect( this, SIGNAL( helpClicked() ), this, SLOT( slotHelpClicked() ) );
m_widgetTypeList->setFocus();
resize(QSize(560, 400).expandedTo(minimumSizeHint()));
}
void OpenWidgetAssistant::slotItemChanged()
{
enableButton( KDialog::User2, !m_widgetTypeList->selectedItems().isEmpty() );
}
void OpenWidgetAssistant::prepPage(KPageWidgetItem *current, KPageWidgetItem *before)
{
Q_UNUSED(before)
if ( m_widgetTypeList->selectedItems().isEmpty() )
return;
if (current != m_filePage) {
return;
}
if (!m_fileDialog) {
QVBoxLayout *layout = new QVBoxLayout(m_filePageWidget);
m_fileDialog = new KFileWidget(KUrl(), m_filePageWidget);
m_fileDialog->setOperationMode(KFileWidget::Opening);
m_fileDialog->setMode(KFile::File | KFile::ExistingOnly);
//m_fileDialog->setWindowFlags(Qt::Widget);
layout->addWidget(m_fileDialog);
}
QListWidgetItem *item = m_widgetTypeList->selectedItems().first();
Q_ASSERT(item);
QString type = item->data(PackageStructureRole).toString();
m_fileDialog->setFilter(QString());
if (!type.isEmpty()) {
QString constraint = QString("'%1' == [X-KDE-PluginInfo-Name]").arg(type);
KService::List offers = KServiceTypeTrader::self()->query("Plasma/PackageStructure", constraint);
kDebug() << "looking for a Plasma/PackageStructure with" << constraint << type;
Q_ASSERT(offers.count() > 0);
m_packageStructureService = offers.first();
QStringList mimes = m_packageStructureService->property("X-Plasma-PackageFileMimetypes").toStringList();
if (mimes.count() > 0) {
m_fileDialog->setMimeFilter(mimes);
} else {
QString filter = m_packageStructureService->property("X-Plasma-PackageFileFilter").toString();
if (!filter.isEmpty()) {
m_fileDialog->setFilter( + '|' + m_packageStructureService->name());
}
}
} else {
QStringList mimes;
mimes << "application/x-plasma";
m_fileDialog->setMimeFilter(mimes);
}
}
void OpenWidgetAssistant::slotHelpClicked()
{
//enable it when doc will created
}
void OpenWidgetAssistant::finished()
{
m_fileDialog->slotOk();
m_fileDialog->accept(); // how interesting .. accept() must be called before the state is set
if (m_fileDialog->selectedFile().isEmpty()) {
//TODO: user visible error handling
return;
}
//kDebug() << "selected uri is" << m_fileDialog->selectedFile() << "of type" << m_fileDialog->currentFilter();
PackageStructure *installer = 0;
if (m_packageStructureService) {
QString error;
installer = m_packageStructureService->createInstance<Plasma::PackageStructure>(0, QVariantList(), &error);
if (!installer) {
kDebug() << "Could not load requested PackageStructure installer "
<< m_packageStructureService << ". Error given: " << error;
return;
}
} else {
installer = new PackageStructure;
}
QString root = KStandardDirs::locateLocal("data", "plasma/plasmoids/");
//kDebug() << "installing to root dir of" << root;
bool success = installer->installPackage(m_fileDialog->selectedFile(), root);
delete installer;
kDebug() << "install returned. were we successful?" << success;
//TODO: user visible feedback
}
} // Plasma namespace
#include "openwidgetassistant_p.moc"