workspace/plasma/shells/common/openwidgetassistant.cpp

   1 /*
   2  *   Copyright (C) 2008 Aaron Seigo <aseigo@kde.org>
   3  *
   4  *   This program is free software; you can redistribute it and/or modify
   5  *   it under the terms of the GNU Library/Lesser General Public License
   6  *   version 2, or (at your option) any later version, as published by the
   7  *   Free Software Foundation
   8  *
   9  *   This program is distributed in the hope that it will be useful,
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  *   GNU General Public License for more details
  13  *
  14  *   You should have received a copy of the GNU Library/Lesser General Public
  15  *   License along with this program; if not, write to the
  16  *   Free Software Foundation, Inc.,
  17  *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  18  */
  19
  20 #include "openwidgetassistant_p.h"
  21
  22 #include <QLabel>
  23 #include <QVBoxLayout>
  24
  25 #include <KDebug>
  26 #include <kfilewidget.h>
  27 #include <KListWidget>
  28 #include <KMessageBox>
  29 #include <KService>
  30 #include <KServiceTypeTrader>
  31 #include <KStandardDirs>
  32
  33 #include <Plasma/PackageStructure>
  34
  35 namespace Plasma
  36 {
  37
  38 OpenWidgetAssistant::OpenWidgetAssistant(QWidget *parent)
  39     : KAssistantDialog(parent),
  40       m_fileDialog(0),
  41       m_filePageWidget(0)
  42 {
  43     QWidget *selectWidget = new QWidget(this);
  44     QVBoxLayout *selectLayout = new QVBoxLayout(selectWidget);
  45     QLabel *selectLabel = new QLabel(selectWidget);
  46     selectLabel->setText(i18n("Select the type of widget to install from the list below."));
  47     m_widgetTypeList = new KListWidget(selectWidget);
  48     m_widgetTypeList->setSelectionMode(QAbstractItemView::SingleSelection);
  49     //m_widgetTypeList->setSelectionBehavior(QAbstractItemView::SelectItems);
  50     connect(m_widgetTypeList, SIGNAL(itemActivated(QListWidgetItem*)), this, SLOT(next()));
  51     connect(m_widgetTypeList, SIGNAL(itemSelectionChanged ()), this, SLOT(slotItemChanged()));
  52
  53     QString constraint("'Applet' in [X-Plasma-ComponentTypes] and exist [X-Plasma-PackageFormat]");
  54     KService::List offers = KServiceTypeTrader::self()->query("Plasma/ScriptEngine", constraint);
  55
  56     QListWidgetItem * item = new QListWidgetItem(KIcon("plasma"), i18n("Plasmoid: Native plasma widget"), m_widgetTypeList);
  57     item->setSelected(true);
  58     m_widgetTypeList->setCurrentItem(item);
  59
  60     foreach (const KService::Ptr &offer, offers) {
  61         QString text(offer->name());
  62         if (!offer->comment().isEmpty()) {
  63             text.append(": ").append(offer->comment());
  64         }
  65
  66         item = new QListWidgetItem(text, m_widgetTypeList);
  67         item->setData(PackageStructureRole, offer->property("X-KDE-PluginInfo-Name"));
  68
  69         if (!offer->icon().isEmpty()) {
  70             item->setIcon(KIcon(offer->icon()));
  71         }
  72     }
  73
  74     selectLayout->addWidget(selectLabel);
  75     selectLayout->addWidget(m_widgetTypeList);
  76
  77     m_typePage = new KPageWidgetItem(selectWidget, i18n("Install New Widget From File"));
  78     m_typePage->setIcon(KIcon("plasma"));
  79     addPage(m_typePage);
  80
  81     m_filePageWidget = new QWidget(this);
  82     m_filePage = new KPageWidgetItem(m_filePageWidget, i18n("Select File"));
  83     addPage(m_filePage);
  84
  85     connect(this, SIGNAL(currentPageChanged(KPageWidgetItem*,KPageWidgetItem*)), SLOT(prepPage(KPageWidgetItem*,KPageWidgetItem*)));
  86     enableButton(KDialog::Help, false);
  87     //connect( this, SIGNAL( helpClicked() ), this, SLOT( slotHelpClicked() ) );
  88     m_widgetTypeList->setFocus();
  89     resize(QSize(560, 400).expandedTo(minimumSizeHint()));
  90 }
  91
  92 void OpenWidgetAssistant::slotItemChanged()
  93 {
  94     enableButton(KDialog::User2, !m_widgetTypeList->selectedItems().isEmpty());
  95 }
  96
  97 void OpenWidgetAssistant::prepPage(KPageWidgetItem *current, KPageWidgetItem *before)
  98 {
  99     Q_UNUSED(before);
 100     if (m_widgetTypeList->selectedItems().isEmpty()) {
 101         return;
 102     }
 103
 104     if (current != m_filePage) {
 105         return;
 106     }
 107
 108     if (!m_fileDialog) {
 109         QVBoxLayout *layout = new QVBoxLayout(m_filePageWidget);
 110         m_fileDialog = new KFileWidget(KUrl(), m_filePageWidget);
 111         m_fileDialog->setOperationMode(KFileWidget::Opening);
 112         m_fileDialog->setMode(KFile::File | KFile::ExistingOnly);
 113         connect(this, SIGNAL(user1Clicked()), m_fileDialog, SLOT(slotOk()));
 114         connect(m_fileDialog, SIGNAL(accepted()), this, SLOT(finished()));
 115         //m_fileDialog->setWindowFlags(Qt::Widget);
 116         layout->addWidget(m_fileDialog);
 117     }
 118
 119     QListWidgetItem *item = m_widgetTypeList->selectedItems().first();
 120     Q_ASSERT(item);
 121
 122     QString type = item->data(PackageStructureRole).toString();
 123
 124     m_fileDialog->setFilter(QString());
 125     if (!type.isEmpty()) {
 126         QString constraint = QString("'%1' == [X-KDE-PluginInfo-Name]").arg(type);
 127         KService::List offers = KServiceTypeTrader::self()->query("Plasma/PackageStructure", constraint);
 128
 129         kDebug() << "looking for a Plasma/PackageStructure with" << constraint << type;
 130         Q_ASSERT(offers.count() > 0);
 131
 132         m_packageStructureService = offers.first();
 133         QStringList mimes = m_packageStructureService->property("X-Plasma-PackageFileMimetypes").toStringList();
 134
 135         if (mimes.count() > 0) {
 136             m_fileDialog->setMimeFilter(mimes);
 137         } else {
 138             QString filter = m_packageStructureService->property("X-Plasma-PackageFileFilter").toString();
 139             if (!filter.isEmpty()) {
 140                 m_fileDialog->setFilter(+ '|' + m_packageStructureService->name());
 141             }
 142         }
 143     } else {
 144         QStringList mimes;
 145         mimes << "application/x-plasma";
 146         m_fileDialog->setMimeFilter(mimes);
 147     }
 148 }
 149
 150 void OpenWidgetAssistant::slotHelpClicked()
 151 {
 152     //enable it when doc will created
 153 }
 154
 155 void OpenWidgetAssistant::finished()
 156 {
 157     m_fileDialog->accept(); // how interesting .. accept() must be called before the state is set
 158     QString packageFilePath = m_fileDialog->selectedFile();
 159     if (packageFilePath.isEmpty()) {
 160         //TODO: user visible error handling
 161         kDebug() << "hm. no file path?";
 162         return;
 163     }
 164
 165     kDebug() << "selected uri is" << packageFilePath << "of type" << m_fileDialog->currentFilter();
 166     PackageStructure *installer = 0;
 167     if (m_packageStructureService) {
 168         QString error;
 169         installer = m_packageStructureService->createInstance<Plasma::PackageStructure>(0, QVariantList(), &error);
 170         if (!installer) {
 171             kDebug() << "Could not load requested PackageStructure installer "
 172                      << m_packageStructureService << ". Error given: " << error;
 173             KMessageBox::error(
 174                 this,
 175                 i18n("Could not load the required installer %1. "
 176                      "The error given was: %2",
 177                      m_packageStructureService, error),
 178                 i18n("Installation Failure"));
 179             return;
 180         }
 181     } else {
 182         installer = new PackageStructure;
 183     }
 184
 185     QString root = KStandardDirs::locateLocal("data", "plasma/plasmoids/");
 186     kDebug() << "installing" << packageFilePath << "to root dir of" << root;
 187
 188     if (!installer->installPackage(packageFilePath, root)) {
 189         KMessageBox::error(this, i18n("Installing the package %1 failed.", packageFilePath),
 190                            i18n("Installation Failure"));
 191     }
 192
 193     delete installer;
 194 }
 195
 196 } // Plasma namespace
 197
 198 #include "openwidgetassistant_p.moc"