traywindow.cpp

/*
 *  traywindow.cpp  -  the KDE system tray applet
 *  Program:  kalarm
 *  Copyright © 2002-2005,2007 by David Jarvie <software@astrojar.org.uk>
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  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 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 "kalarm.h"
 
#include <stdlib.h>
 
#include <tqtooltip.h>
 
#include <tdeapplication.h>
#include <tdelocale.h>
#include <tdeaboutdata.h>
#include <tdepopupmenu.h>
#include <tdemessagebox.h>
#include <tdestandarddirs.h>
#include <kstdaction.h>
#include <kstdguiitem.h>
#include <tdeaccel.h>
#include <tdeconfig.h>
#include <kdebug.h>
 
#include "alarmcalendar.h"
#include "alarmlistview.h"
#include "alarmtext.h"
#include "daemon.h"
#include "functions.h"
#include "kalarmapp.h"
#include "mainwindow.h"
#include "messagewin.h"
#include "prefdlg.h"
#include "preferences.h"
#include "templatemenuaction.h"
#include "traywindow.moc"
 
 
class TrayTooltip : public TQToolTip
{
    public:
        TrayTooltip(TQWidget* parent) : TQToolTip(parent) { }
        virtual ~TrayTooltip() {}
    protected:
        virtual void maybeTip(const TQPoint&);
};
 
struct TipItem
{
    TQDateTime  dateTime;
    TQString    text;
};
 
 
/*=============================================================================
= Class: TrayWindow
= The KDE system tray window.
=============================================================================*/
 
TrayWindow::TrayWindow(MainWindow* parent, const char* name)
    : KSystemTray((theApp()->wantRunInSystemTray() ? parent : 0), name),
      mAssocMainWindow(parent)
{
    kdDebug(5950) << "TrayWindow::TrayWindow()\n";
    // Set up GUI icons
    mPixmapEnabled  = loadIcon("kalarm");
    mPixmapDisabled = loadIcon("kalarm_disabled");
    if (mPixmapEnabled.isNull() || mPixmapDisabled.isNull())
        KMessageBox::sorry(this, i18n("Cannot load system tray icon."));
    setAcceptDrops(true);         // allow drag-and-drop onto this window
 
    // Set up the context menu
    TDEActionCollection* actcol = actionCollection();
    AlarmEnableAction* a = Daemon::createAlarmEnableAction(actcol, "tAlarmEnable");
    a->plug(contextMenu());
    connect(a, TQ_SIGNAL(switched(bool)), TQ_SLOT(setEnabledStatus(bool)));
    KAlarm::createNewAlarmAction(i18n("&New Alarm..."), this, TQ_SLOT(slotNewAlarm()), actcol, "tNew")->plug(contextMenu());
    KAlarm::createNewFromTemplateAction(i18n("New Alarm From &Template"), this, TQ_SLOT(slotNewFromTemplate(const KAEvent&)), actcol, "tNewFromTempl")->plug(contextMenu());
    KStdAction::preferences(this, TQ_SLOT(slotPreferences()), actcol)->plug(contextMenu());
 
    // Replace the default handler for the Quit context menu item
    const char* quitName = KStdAction::name(KStdAction::Quit);
    actcol->remove(actcol->action(quitName));
    actcol->tdeaccel()->remove(quitName);
    KStdAction::quit(this, TQ_SLOT(slotQuit()), actcol);
 
    // Set icon to correspond with the alarms enabled menu status
    Daemon::checkStatus();
    setEnabledStatus(Daemon::monitoringAlarms());
 
    mTooltip = new TrayTooltip(this);
}
 
TrayWindow::~TrayWindow()
{
    kdDebug(5950) << "TrayWindow::~TrayWindow()\n";
    delete mTooltip;
    mTooltip = 0;
    theApp()->removeWindow(this);
    emit deleted();
}
 
/******************************************************************************
* Called just before the context menu is displayed.
* Update the Alarms Enabled item status.
*/
void TrayWindow::contextMenuAboutToShow(TDEPopupMenu* menu)
{
    KSystemTray::contextMenuAboutToShow(menu);     // needed for KDE <= 3.1 compatibility
    Daemon::checkStatus();
}
 
/******************************************************************************
*  Called when the "New Alarm" menu item is selected to edit a new alarm.
*/
void TrayWindow::slotNewAlarm()
{
    MainWindow::executeNew();
}
 
/******************************************************************************
*  Called when the "New Alarm" menu item is selected to edit a new alarm.
*/
void TrayWindow::slotNewFromTemplate(const KAEvent& event)
{
    MainWindow::executeNew(event);
}
 
/******************************************************************************
*  Called when the "Configure KAlarm" menu item is selected.
*/
void TrayWindow::slotPreferences()
{
    KAlarmPrefDlg::display();
}
 
/******************************************************************************
* Called when the Quit context menu item is selected.
*/
void TrayWindow::slotQuit()
{
    theApp()->doQuit(this);
}
 
/******************************************************************************
* Called when the Alarms Enabled action status has changed.
* Updates the alarms enabled menu item check state, and the icon pixmap.
*/
void TrayWindow::setEnabledStatus(bool status)
{
    kdDebug(5950) << "TrayWindow::setEnabledStatus(" << (int)status << ")\n";
    setPixmap(status ? mPixmapEnabled : mPixmapDisabled);
}
 
/******************************************************************************
*  Called when the mouse is clicked over the panel icon.
*  A left click displays the KAlarm main window.
*  A middle button click displays the New Alarm window.
*/
void TrayWindow::mousePressEvent(TQMouseEvent* e)
{
    if (e->button() == TQt::LeftButton  &&  !theApp()->wantRunInSystemTray())
    {
        // Left click: display/hide the first main window
        mAssocMainWindow = MainWindow::toggleWindow(mAssocMainWindow);
    }
    else if (e->button() == TQt::MidButton)
        MainWindow::executeNew();    // display a New Alarm dialog
    else
        KSystemTray::mousePressEvent(e);
}
 
/******************************************************************************
*  Called when the mouse is released over the panel icon.
*  The main window (if not hidden) is raised and made the active window.
*  If this is done in mousePressEvent(), it doesn't work.
*/
void TrayWindow::mouseReleaseEvent(TQMouseEvent* e)
{
    if (e->button() == TQt::LeftButton  &&  mAssocMainWindow  &&  mAssocMainWindow->isVisible())
    {
        mAssocMainWindow->raise();
        mAssocMainWindow->setActiveWindow();
    }
    else
        KSystemTray::mouseReleaseEvent(e);
}
 
/******************************************************************************
*  Called when the drag cursor enters the panel icon.
*/
void TrayWindow::dragEnterEvent(TQDragEnterEvent* e)
{
    MainWindow::executeDragEnterEvent(e);
}
 
/******************************************************************************
*  Called when an object is dropped on the panel icon.
*  If the object is recognised, the edit alarm dialog is opened appropriately.
*/
void TrayWindow::dropEvent(TQDropEvent* e)
{
    MainWindow::executeDropEvent(0, e);
}
 
/******************************************************************************
*  Return the tooltip text showing alarms due in the next 24 hours.
*  The limit of 24 hours is because only times, not dates, are displayed.
*/
void TrayWindow::tooltipAlarmText(TQString& text) const
{
    KAEvent event;
    const TQString& prefix = Preferences::tooltipTimeToPrefix();
    int maxCount = Preferences::tooltipAlarmCount();
    TQDateTime now = TQDateTime::currentDateTime();
 
    // Get today's and tomorrow's alarms, sorted in time order
    TQValueList<TipItem> items;
    TQValueList<TipItem>::Iterator iit;
    KCal::Event::List events = AlarmCalendar::activeCalendar()->eventsWithAlarms(now.date(), now.addDays(1));
    for (KCal::Event::List::ConstIterator it = events.begin();  it != events.end();  ++it)
    {
        KCal::Event* kcalEvent = *it;
        event.set(*kcalEvent);
        if (event.enabled()  &&  !event.expired()  &&  event.action() == KAEvent::MESSAGE)
        {
            TipItem item;
            DateTime dateTime = event.displayDateTime();
            if (dateTime.date() > now.date())
            {
                // Ignore alarms after tomorrow at the current clock time
                if (dateTime.date() != now.date().addDays(1)
                ||  dateTime.time() >= now.time())
                    continue;
            }
            item.dateTime = dateTime.dateTime();
 
            // The alarm is due today, or early tomorrow
            bool space = false;
            if (Preferences::showTooltipAlarmTime())
            {
                item.text += TDEGlobal::locale()->formatTime(item.dateTime.time());
                item.text += ' ';
                space = true;
            }
            if (Preferences::showTooltipTimeToAlarm())
            {
                int mins = (now.secsTo(item.dateTime) + 59) / 60;
                if (mins < 0)
                    mins = 0;
                char minutes[3] = "00";
                minutes[0] = (mins%60) / 10 + '0';
                minutes[1] = (mins%60) % 10 + '0';
                if (Preferences::showTooltipAlarmTime())
                    item.text += i18n("prefix + hours:minutes", "(%1%2:%3)").arg(prefix).arg(mins/60).arg(minutes);
                else
                    item.text += i18n("prefix + hours:minutes", "%1%2:%3").arg(prefix).arg(mins/60).arg(minutes);
                item.text += ' ';
                space = true;
            }
            if (space)
                item.text += ' ';
            item.text += AlarmText::summary(event);
 
            // Insert the item into the list in time-sorted order
            for (iit = items.begin();  iit != items.end();  ++iit)
            {
                if (item.dateTime <= (*iit).dateTime)
                    break;
            }
            items.insert(iit, item);
        }
        }
    kdDebug(5950) << "TrayWindow::tooltipAlarmText():\n";
    int count = 0;
    for (iit = items.begin();  iit != items.end();  ++iit)
    {
        kdDebug(5950) << "-- " << (count+1) << ") " << (*iit).text << endl;
        text += '\n';
        text += (*iit).text;
        if (++count == maxCount)
            break;
    }
}
 
/******************************************************************************
* Called when the associated main window is closed.
*/
void TrayWindow::removeWindow(MainWindow* win)
{
    if (win == mAssocMainWindow)
        mAssocMainWindow = 0;
}
 
 
#ifdef HAVE_X11_HEADERS
    #include <X11/X.h>
    #include <X11/Xlib.h>
    #include <X11/Xutil.h>
#endif
 
/******************************************************************************
* Check whether the widget is in the system tray.
* Note that it is only sometime AFTER the show event that the system tray
* becomes the widget's parent. So for a definitive status, call this method
* only after waiting a bit...
* Reply = true if the widget is in the system tray, or its status can't be determined.
*       = false if it is not currently in the system tray.
*/
bool TrayWindow::inSystemTray() const
{
#ifdef HAVE_X11_HEADERS
    Window  xParent;    // receives parent window
    Window  root;
    Window* children = 0;
    unsigned int nchildren;
    // Find the X parent window of the widget. This is not the same as the TQt parent widget.
    if (!XQueryTree(tqt_xdisplay(), winId(), &root, &xParent, &children, &nchildren))
        return true;    // error determining its parent X window
    if (children)
        XFree(children);
 
    // If it is in the system tray, the system tray window will be its X parent.
    // Otherwise, the root window will be its X parent.
    return xParent != root;
#else
    return true;
#endif // HAVE_X11_HEADERS
}
 
 
/******************************************************************************
*  Displays the appropriate tooltip depending on preference settings.
*/
void TrayTooltip::maybeTip(const TQPoint&)
{
    TrayWindow* parent = (TrayWindow*)parentWidget();
    TQString text;
    if (Daemon::monitoringAlarms())
        text = tdeApp->aboutData()->programName();
    else
        text = i18n("%1 - disabled").arg(tdeApp->aboutData()->programName());
    kdDebug(5950) << "TrayTooltip::maybeTip(): " << text << endl;
    if (Preferences::tooltipAlarmCount())
        parent->tooltipAlarmText(text);
    tip(parent->rect(), text);
}