workspace/plasma/applets/kickoff/applet/applet.cpp

   1 /*
   2     Copyright 2007 Robert Knight <robertknight@gmail.com>
   3
   4     This library is free software; you can redistribute it and/or
   5     modify it under the terms of the GNU Library General Public
   6     License as published by the Free Software Foundation; either
   7     version 2 of the License, or (at your option) any later version.
   8
   9     This library 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 GNU
  12     Library General Public License for more details.
  13
  14     You should have received a copy of the GNU Library General Public License
  15     along with this library; see the file COPYING.LIB.  If not, write to
  16     the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  17     Boston, MA 02110-1301, USA.
  18 */
  19
  20 // Own
  21 #include "applet/applet.h"
  22
  23 // Qt
  24 #include <QtGui/QAction>
  25 #include <QtGui/QApplication>
  26 #include <QtGui/QGraphicsView>
  27 #include <QtGui/QCheckBox>
  28 #include <QtGui/QVBoxLayout>
  29 #include <QtGui/QLabel>
  30 #include <QtGui/QGraphicsLinearLayout>
  31
  32 // KDE
  33 #include <KIcon>
  34 #include <KDebug>
  35 #include <KConfigDialog>
  36 #include <KProcess>
  37
  38 // Plasma
  39 #include <Plasma/IconWidget>
  40 #include <Plasma/Containment>
  41 #include <Plasma/View>
  42 #include <Plasma/ToolTipManager>
  43
  44 // Local
  45 #include "ui/launcher.h"
  46 #include "core/recentapplications.h"
  47
  48 class LauncherApplet::Private
  49 {
  50 public:
  51     Private(LauncherApplet *lApplet) : launcher(0), switcher(0), q(lApplet) { }
  52     ~Private() {
  53         delete launcher;
  54     }
  55     void createLauncher();
  56     void initToolTip();
  57
  58     Kickoff::Launcher *launcher;
  59
  60     QCheckBox *switchOnHoverCheckBox;
  61     QList<QAction*> actions;
  62     QAction* switcher;
  63     LauncherApplet *q;
  64 };
  65
  66 void LauncherApplet::Private::createLauncher()
  67 {
  68     if (launcher) {
  69         return;
  70     }
  71
  72     launcher = new Kickoff::Launcher(q);
  73     launcher->setAttribute(Qt::WA_NoSystemBackground);
  74     launcher->setAutoHide(true);
  75     QObject::connect(launcher, SIGNAL(aboutToHide()), q, SLOT(hidePopup()));
  76     //launcher->resize(launcher->sizeHint());
  77     //QObject::connect(launcher, SIGNAL(aboutToHide()), icon, SLOT(setUnpressed()));
  78     //QObject::connect(launcher, SIGNAL(configNeedsSaving()), q, SIGNAL(configNeedsSaving()));
  79 }
  80
  81 void LauncherApplet::Private::initToolTip()
  82 {
  83     Plasma::ToolTipContent data(i18n("Kickoff Application Launcher"),
  84                                 i18n("Favorites, applications, computer places, "
  85                                      "recently used items and desktop sessions"),
  86                                 q->popupIcon().pixmap(IconSize(KIconLoader::Desktop)));
  87     Plasma::ToolTipManager::self()->setContent(q, data);
  88 }
  89
  90 LauncherApplet::LauncherApplet(QObject *parent, const QVariantList &args)
  91         : Plasma::PopupApplet(parent, args),
  92         d(new Private(this))
  93 {
  94     KGlobal::locale()->insertCatalog("plasma_applet_launcher");
  95     setHasConfigurationInterface(true);
  96     setPopupIcon("start-here-kde");
  97 }
  98
  99 LauncherApplet::~LauncherApplet()
 100 {
 101     delete d;
 102 }
 103
 104 void LauncherApplet::init()
 105 {
 106     if (KService::serviceByStorageId("kde4-kmenuedit.desktop")) {
 107         QAction* menueditor = new QAction(i18n("Menu Editor"), this);
 108         d->actions.append(menueditor);
 109         connect(menueditor, SIGNAL(triggered(bool)), this, SLOT(startMenuEditor()));
 110     }
 111
 112     Q_ASSERT(! d->switcher);
 113     d->switcher = new QAction(i18n("Switch to Classic Menu Style"), this);
 114     d->actions.append(d->switcher);
 115     connect(d->switcher, SIGNAL(triggered(bool)), this, SLOT(switchMenuStyle()));
 116
 117     constraintsEvent(Plasma::ImmutableConstraint);
 118     Plasma::ToolTipManager::self()->registerWidget(this);
 119 }
 120
 121 void LauncherApplet::constraintsEvent(Plasma::Constraints constraints)
 122 {
 123     if ((constraints & Plasma::ImmutableConstraint) && d->switcher) {
 124         d->switcher->setVisible(immutability() == Plasma::Mutable);
 125     }
 126 }
 127
 128 void LauncherApplet::switchMenuStyle()
 129 {
 130     if (containment()) {
 131         containment()->addApplet("simplelauncher", QVariantList(), geometry());
 132         destroy();
 133     }
 134 }
 135
 136 void LauncherApplet::startMenuEditor()
 137 {
 138     KProcess::execute("kmenuedit");
 139 }
 140
 141 void LauncherApplet::createConfigurationInterface(KConfigDialog *parent)
 142 {
 143     QWidget *widget = new QWidget(parent);
 144     QVBoxLayout *widgetLayout = new QVBoxLayout(widget);
 145     widget->setLayout(widgetLayout);
 146
 147     d->switchOnHoverCheckBox = new QCheckBox(i18n("Switch tabs on hover"), widget);
 148     widgetLayout->addWidget(d->switchOnHoverCheckBox);
 149
 150     widgetLayout->addStretch();
 151
 152     connect(parent, SIGNAL(applyClicked()), this, SLOT(configAccepted()));
 153     connect(parent, SIGNAL(okClicked()), this, SLOT(configAccepted()));
 154     parent->addPage(widget, i18n("General"), icon());
 155
 156     d->createLauncher();
 157     d->switchOnHoverCheckBox->setChecked(d->launcher->switchTabsOnHover());
 158 }
 159
 160 void LauncherApplet::popupEvent(bool show)
 161 {
 162     if (show) {
 163         Plasma::ToolTipManager::self()->clearContent(this);
 164         d->launcher->setLauncherOrigin(popupPlacement(), location());
 165         d->createLauncher();
 166     }
 167 }
 168
 169 void LauncherApplet::toolTipAboutToShow()
 170 {
 171     if (d->launcher->isVisible()) {
 172         Plasma::ToolTipManager::self()->clearContent(this);
 173     } else {
 174         d->initToolTip();
 175     }
 176 }
 177
 178 void LauncherApplet::configAccepted()
 179 {
 180     bool switchTabsOnHover = d->switchOnHoverCheckBox->isChecked();
 181
 182     // TODO: should this be moved into Launcher as well? perhaps even the config itself?
 183     KConfigGroup cg = globalConfig();
 184     cg.writeEntry("SwitchTabsOnHover", switchTabsOnHover);
 185     emit configNeedsSaving();
 186
 187     d->createLauncher();
 188     d->launcher->setSwitchTabsOnHover(switchTabsOnHover);
 189 }
 190
 191 QList<QAction*> LauncherApplet::contextualActions()
 192 {
 193     return d->actions;
 194 }
 195
 196 QWidget *LauncherApplet::widget()
 197 {
 198     d->createLauncher();
 199     return d->launcher;
 200 }
 201
 202 #include "applet.moc"