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/*
* adcalendar.cpp - calendar file access
* Program: KAlarm's alarm daemon (kalarmd)
* Copyright (c) 2001, 2004-2006 by David Jarvie <[email protected]>
*
* 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 <unistd.h>
#include <assert.h>
#include <qfile.h>
#include <ktempfile.h>
#include <kio/job.h>
#include <kio/jobclasses.h>
#include <kdebug.h>
#include "adcalendar.moc"
QValueList<ADCalendar*> ADCalendar::mCalendars;
ADCalendar::EventsMap ADCalendar::mEventsHandled;
ADCalendar::EventsMap ADCalendar::mEventsPending;
QStringList ADCalendar::mCalendarUrls; // never delete or reorder anything in this list!
ADCalendar::ADCalendar(const QString& url, const QCString& appname)
: KCal::CalendarLocal(QString::fromLatin1("UTC")),
mUrlString(url),
mAppName(appname),
mLoaded(false),
mLoadedConnected(false),
mUnregistered(false),
mEnabled(true)
{
ADCalendar* cal = getCalendar(url);
if (cal)
{
kdError(5900) << "ADCalendar::ADCalendar(" << url << "): calendar already exists" << endl;
assert(0);
}
mUrlIndex = mCalendarUrls.findIndex(url); // get unique index for this URL
if (mUrlIndex < 0)
{
mUrlIndex = static_cast<int>(mCalendarUrls.count());
mCalendarUrls.append(url);
}
loadFile(false);
mCalendars.append(this);
}
ADCalendar::~ADCalendar()
{
clearEventsHandled();
mCalendars.remove(this);
}
/******************************************************************************
* Load the calendar file.
*/
bool ADCalendar::loadFile(bool reset)
{
if (reset)
clearEventsHandled();
if (!mTempFileName.isNull())
{
// Don't try to load the file if already downloading it
kdError(5900) << "ADCalendar::loadFile(): already downloading another file\n";
return false;
}
mLoaded = false;
KURL url(mUrlString);
if (url.isLocalFile())
{
// It's a local file
loadLocalFile(url.path());
emit loaded(this, mLoaded);
}
else
{
// It's a remote file. Download to a temporary file before loading it
KTempFile tempFile;
mTempFileName = tempFile.name();
KURL dest;
dest.setPath(mTempFileName);
KIO::FileCopyJob* job = KIO::file_copy(url, dest, -1, true);
connect(job, SIGNAL(result(KIO::Job*)), SLOT(slotDownloadJobResult(KIO::Job*)));
}
return true;
}
void ADCalendar::slotDownloadJobResult(KIO::Job *job)
{
if (job->error())
{
KURL url(mUrlString);
kdDebug(5900) << "Error downloading calendar from " << url.prettyURL() << endl;
job->showErrorDialog(0);
}
else
{
kdDebug(5900) << "--- Downloaded to " << mTempFileName << endl;
loadLocalFile(mTempFileName);
}
unlink(QFile::encodeName(mTempFileName));
mTempFileName = QString::null;
emit loaded(this, mLoaded);
}
void ADCalendar::loadLocalFile(const QString& filename)
{
mLoaded = load(filename);
if (!mLoaded)
kdDebug(5900) << "ADCalendar::loadLocalFile(): Error loading calendar file '" << filename << "'\n";
else
clearEventsHandled(true); // remove all events which no longer exist from handled list
}
bool ADCalendar::setLoadedConnected()
{
if (mLoadedConnected)
return true;
mLoadedConnected = true;
return false;
}
/******************************************************************************
* Check whether all the alarms for the event with the given ID have already
* been handled.
*/
bool ADCalendar::eventHandled(const KCal::Event* event, const QValueList<QDateTime>& alarmtimes)
{
EventsMap::ConstIterator it = mEventsHandled.find(EventKey(event->uid(), mUrlIndex));
if (it == mEventsHandled.end())
return false;
int oldCount = it.data().alarmTimes.count();
int count = alarmtimes.count();
for (int i = 0; i < count; ++i)
{
if (alarmtimes[i].isValid()
&& (i >= oldCount // is it an additional alarm?
|| !it.data().alarmTimes[i].isValid() // or has it just become due?
|| it.data().alarmTimes[i].isValid() // or has it changed?
&& alarmtimes[i] != it.data().alarmTimes[i]))
return false; // this alarm has changed
}
return true;
}
/******************************************************************************
* Remember that the event with the given ID has been handled.
* It must already be in the pending list.
*/
void ADCalendar::setEventHandled(const QString& eventID)
{
kdDebug(5900) << "ADCalendar::setEventHandled(" << eventID << ")\n";
EventKey key(eventID, mUrlIndex);
// Remove it from the pending list, and add it to the handled list
EventsMap::Iterator it = mEventsPending.find(key);
if (it != mEventsPending.end())
{
setEventInMap(mEventsHandled, key, it.data().alarmTimes, it.data().eventSequence);
mEventsPending.remove(it);
}
}
/******************************************************************************
* Remember that the specified alarms for the event with the given ID have been
* notified to KAlarm, but no reply has come back yet.
*/
void ADCalendar::setEventPending(const KCal::Event* event, const QValueList<QDateTime>& alarmtimes)
{
if (event)
{
kdDebug(5900) << "ADCalendar::setEventPending(" << event->uid() << ")\n";
EventKey key(event->uid(), mUrlIndex);
setEventInMap(mEventsPending, key, alarmtimes, event->revision());
}
}
/******************************************************************************
* Add a specified entry to the events pending or handled list.
*/
void ADCalendar::setEventInMap(EventsMap& map, const EventKey& key, const QValueList<QDateTime>& alarmtimes, int sequence)
{
EventsMap::Iterator it = map.find(key);
if (it != map.end())
{
// Update the existing entry for the event
it.data().alarmTimes = alarmtimes;
it.data().eventSequence = sequence;
}
else
map.insert(key, EventItem(sequence, alarmtimes));
}
/******************************************************************************
* Clear all memory of events handled for the calendar.
*/
void ADCalendar::clearEventsHandled(bool nonexistentOnly)
{
clearEventMap(mEventsPending, nonexistentOnly);
clearEventMap(mEventsHandled, nonexistentOnly);
}
/******************************************************************************
* Clear the events pending or handled list of all events handled for the calendar.
*/
void ADCalendar::clearEventMap(EventsMap& map, bool nonexistentOnly)
{
for (EventsMap::Iterator it = map.begin(); it != map.end(); )
{
if (it.key().calendarIndex == mUrlIndex
&& (!nonexistentOnly || !event(it.key().eventID)))
{
EventsMap::Iterator i = it;
++it; // prevent iterator becoming invalid with remove()
map.remove(i);
}
else
++it;
}
}
/******************************************************************************
* Look up the calendar with the specified full calendar URL.
*/
ADCalendar* ADCalendar::getCalendar(const QString& calendarURL)
{
if (!calendarURL.isEmpty())
{
for (ConstIterator it = begin(); it != end(); ++it)
{
if ((*it)->urlString() == calendarURL)
return *it;
}
}
return 0;
}
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