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libplasma

openwidgetassistant.cpp

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00001 /*
00002  *   Copyright (C) 2008 Aaron Seigo <aseigo@kde.org>
00003  *
00004  *   This program is free software; you can redistribute it and/or modify
00005  *   it under the terms of the GNU Library/Lesser General Public License
00006  *   version 2, or (at your option) any later version, as published by the
00007  *   Free Software Foundation
00008  *
00009  *   This program is distributed in the hope that it will be useful,
00010  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
00011  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00012  *   GNU General Public License for more details
00013  *
00014  *   You should have received a copy of the GNU Library/Lesser General Public
00015  *   License along with this program; if not, write to the
00016  *   Free Software Foundation, Inc.,
00017  *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
00018  */
00019 
00020 #include "plasma/appletbrowser/openwidgetassistant_p.h"
00021 
00022 #include <QLabel>
00023 #include <QVBoxLayout>
00024 
00025 #include <KDebug>
00026 #include <kfilewidget.h>
00027 #include <KListWidget>
00028 #include <KService>
00029 #include <KServiceTypeTrader>
00030 #include <KStandardDirs>
00031 
00032 #include "plasma/packagestructure.h"
00033 
00034 namespace Plasma
00035 {
00036 
00037 OpenWidgetAssistant::OpenWidgetAssistant(QWidget *parent)
00038     : KAssistantDialog(parent),
00039       m_fileDialog(0),
00040       m_filePageWidget(0)
00041 {
00042     QWidget *selectWidget = new QWidget(this);
00043     QVBoxLayout *selectLayout = new QVBoxLayout(selectWidget);
00044     QLabel *selectLabel = new QLabel(selectWidget);
00045     selectLabel->setText(i18n("Select the type of widget to install from the list below."));
00046     m_widgetTypeList = new KListWidget(selectWidget);
00047     m_widgetTypeList->setSelectionMode(QAbstractItemView::SingleSelection);
00048     //m_widgetTypeList->setSelectionBehavior(QAbstractItemView::SelectItems);
00049     connect(m_widgetTypeList, SIGNAL(itemActivated(QListWidgetItem*)), this, SLOT(next()));
00050     connect(m_widgetTypeList, SIGNAL(itemSelectionChanged ()), this, SLOT(slotItemChanged()));
00051 
00052     QString constraint("'Applet' in [X-Plasma-ComponentTypes] and exist [X-Plasma-PackageFormat]");
00053     KService::List offers = KServiceTypeTrader::self()->query("Plasma/ScriptEngine", constraint);
00054 
00055     QListWidgetItem * item = new QListWidgetItem(KIcon("plasma"), i18n("Plasmoid: Native plasma widget"), m_widgetTypeList);
00056     item->setSelected(true);
00057     m_widgetTypeList->setCurrentItem(item);
00058 
00059     foreach (const KService::Ptr &offer, offers) {
00060         QString text(offer->name());
00061         if (!offer->comment().isEmpty()) {
00062             text.append(": ").append(offer->comment());
00063         }
00064 
00065         item = new QListWidgetItem(text, m_widgetTypeList);
00066         item->setData(PackageStructureRole, offer->property("X-KDE-PluginInfo-Name"));
00067 
00068         if (!offer->icon().isEmpty()) {
00069             item->setIcon(KIcon(offer->icon()));
00070         }
00071     }
00072 
00073     selectLayout->addWidget(selectLabel);
00074     selectLayout->addWidget(m_widgetTypeList);
00075 
00076     m_typePage = new KPageWidgetItem(selectWidget, i18n("Install New Widget From File"));
00077     m_typePage->setIcon(KIcon("plasma"));
00078     addPage(m_typePage);
00079 
00080     m_filePageWidget = new QWidget(this);
00081     m_filePage = new KPageWidgetItem(m_filePageWidget, i18n("Select File"));
00082     addPage(m_filePage);
00083 
00084     connect(this, SIGNAL(currentPageChanged(KPageWidgetItem*,KPageWidgetItem*)), SLOT(prepPage(KPageWidgetItem*,KPageWidgetItem*)));
00085     connect(this, SIGNAL(user1Clicked()), this, SLOT(finished()));
00086     enableButton( KDialog::Help, false );
00087     //connect( this, SIGNAL( helpClicked() ), this, SLOT( slotHelpClicked() ) );
00088     m_widgetTypeList->setFocus();
00089     resize(QSize(560, 400).expandedTo(minimumSizeHint()));
00090 }
00091 
00092 void OpenWidgetAssistant::slotItemChanged()
00093 {
00094     enableButton( KDialog::User2, !m_widgetTypeList->selectedItems().isEmpty() );
00095 }
00096 
00097 void OpenWidgetAssistant::prepPage(KPageWidgetItem *current, KPageWidgetItem *before)
00098 {
00099     Q_UNUSED(before)
00100     if ( m_widgetTypeList->selectedItems().isEmpty() )
00101         return;
00102 
00103     if (current != m_filePage) {
00104         return;
00105     }
00106 
00107     if (!m_fileDialog) {
00108         QVBoxLayout *layout = new QVBoxLayout(m_filePageWidget);
00109         m_fileDialog = new KFileWidget(KUrl(), m_filePageWidget);
00110         m_fileDialog->setOperationMode(KFileWidget::Opening);
00111         m_fileDialog->setMode(KFile::File | KFile::ExistingOnly);
00112         //m_fileDialog->setWindowFlags(Qt::Widget);
00113         layout->addWidget(m_fileDialog);
00114     }
00115 
00116     QListWidgetItem *item = m_widgetTypeList->selectedItems().first();
00117     Q_ASSERT(item);
00118 
00119     QString type = item->data(PackageStructureRole).toString();
00120 
00121     m_fileDialog->setFilter(QString());
00122     if (!type.isEmpty()) {
00123         QString constraint = QString("'%1' == [X-KDE-PluginInfo-Name]").arg(type);
00124         KService::List offers = KServiceTypeTrader::self()->query("Plasma/PackageStructure", constraint);
00125 
00126         kDebug() << "looking for a Plasma/PackageStructure with" << constraint << type;
00127         Q_ASSERT(offers.count() > 0);
00128 
00129         m_packageStructureService = offers.first();
00130         QStringList mimes = m_packageStructureService->property("X-Plasma-PackageFileMimetypes").toStringList();
00131 
00132         if (mimes.count() > 0) {
00133             m_fileDialog->setMimeFilter(mimes);
00134         } else {
00135             QString filter = m_packageStructureService->property("X-Plasma-PackageFileFilter").toString();
00136             if (!filter.isEmpty()) {
00137                 m_fileDialog->setFilter( + '|' + m_packageStructureService->name());
00138             }
00139         }
00140     } else {
00141         QStringList mimes;
00142         mimes << "application/x-plasma";
00143         m_fileDialog->setMimeFilter(mimes);
00144     }
00145 }
00146 
00147 void OpenWidgetAssistant::slotHelpClicked()
00148 {
00149     //enable it when doc will created
00150 }
00151 
00152 void OpenWidgetAssistant::finished()
00153 {
00154     m_fileDialog->slotOk();
00155     m_fileDialog->accept(); // how interesting .. accept() must be called before the state is set
00156 
00157     if (m_fileDialog->selectedFile().isEmpty()) {
00158         //TODO: user visible error handling
00159         return;
00160     }
00161 
00162     //kDebug() << "selected uri is" << m_fileDialog->selectedFile() << "of type" << m_fileDialog->currentFilter();
00163     PackageStructure *installer = 0;
00164     if (m_packageStructureService) {
00165         QString error;
00166         installer = m_packageStructureService->createInstance<Plasma::PackageStructure>(0, QVariantList(), &error);
00167         if (!installer) {
00168             kDebug() << "Could not load requested PackageStructure installer "
00169                      << m_packageStructureService << ". Error given: " << error;
00170             return;
00171         }
00172     } else {
00173         installer = new PackageStructure;
00174     }
00175 
00176     QString root = KStandardDirs::locateLocal("data", "plasma/plasmoids/");
00177     //kDebug() << "installing to root dir of" << root;
00178     bool success = installer->installPackage(m_fileDialog->selectedFile(), root);
00179 
00180     delete installer;
00181     kDebug() << "install returned. were we successful?" << success;
00182     //TODO: user visible feedback
00183 }
00184 
00185 } // Plasma namespace
00186 
00187 #include "openwidgetassistant_p.moc"

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