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tdepim/kmail/kmsystemtray.cpp

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// -*- mode: C++; c-file-style: "gnu" -*-
/***************************************************************************
kmsystemtray.cpp - description
-------------------
begin : Fri Aug 31 22:38:44 EDT 2001
copyright : (C) 2001 by Ryan Breen
email : ryan@porivo.com
***************************************************************************/
/***************************************************************************
* *
* 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. *
* *
***************************************************************************/
#include <config.h>
#include "kmsystemtray.h"
#include "kmfolder.h"
#include "kmfoldertree.h"
#include "kmfoldermgr.h"
#include "kmfolderimap.h"
#include "kmmainwidget.h"
#include "accountmanager.h"
using KMail::AccountManager;
#include "globalsettings.h"
#include <kapplication.h>
#include <kmainwindow.h>
#include <kglobalsettings.h>
#include <kiconloader.h>
#include <kiconeffect.h>
#include <kwin.h>
#include <kdebug.h>
#include <kpopupmenu.h>
#include <tqpainter.h>
#include <tqbitmap.h>
#include <tqtooltip.h>
#include <tqwidgetlist.h>
#include <tqobjectlist.h>
#include <math.h>
#include <assert.h>
/**
* Construct a KSystemTray icon to be displayed when new mail
* has arrived in a non-system folder. The KMSystemTray listens
* for updateNewMessageNotification events from each non-system
* KMFolder and maintains a store of all folders with unread
* messages.
*
* The KMSystemTray also provides a popup menu listing each folder
* with its count of unread messages, allowing the user to jump
* to the first unread message in each folder.
*/
KMSystemTray::KMSystemTray(TQWidget *tqparent, const char *name)
: KSystemTray( tqparent, name ),
mParentVisible( true ),
mPosOfMainWin( 0, 0 ),
mDesktopOfMainWin( 0 ),
mMode( GlobalSettings::EnumSystemTrayPolicy::ShowOnUnread ),
mCount( 0 ),
mNewMessagePopupId(-1),
mPopupMenu(0)
{
tqsetAlignment( AlignCenter );
kdDebug(5006) << "Initting systray" << endl;
mLastUpdate = time( 0 );
mUpdateTimer = new TQTimer( this, "systraytimer" );
connect( mUpdateTimer, TQT_SIGNAL( timeout() ), TQT_SLOT( updateNewMessages() ) );
mDefaultIcon = loadIcon( "kmail" );
mLightIconImage = loadIcon( "kmaillight" ).convertToImage();
setPixmap(mDefaultIcon);
KMMainWidget * mainWidget = kmkernel->getKMMainWidget();
if ( mainWidget ) {
TQWidget * mainWin = mainWidget->tqtopLevelWidget();
if ( mainWin ) {
mDesktopOfMainWin = KWin::windowInfo( mainWin->winId(),
NET::WMDesktop ).desktop();
mPosOfMainWin = mainWin->pos();
}
}
// register the applet with the kernel
kmkernel->registerSystemTrayApplet( this );
/** Initiate connections between folders and this object */
foldersChanged();
connect( kmkernel->folderMgr(), TQT_SIGNAL(changed()), TQT_SLOT(foldersChanged()));
connect( kmkernel->imapFolderMgr(), TQT_SIGNAL(changed()), TQT_SLOT(foldersChanged()));
connect( kmkernel->dimapFolderMgr(), TQT_SIGNAL(changed()), TQT_SLOT(foldersChanged()));
connect( kmkernel->searchFolderMgr(), TQT_SIGNAL(changed()), TQT_SLOT(foldersChanged()));
connect( kmkernel->acctMgr(), TQT_SIGNAL( checkedMail( bool, bool, const TQMap<TQString, int> & ) ),
TQT_SLOT( updateNewMessages() ) );
connect( this, TQT_SIGNAL( quitSelected() ), TQT_SLOT( tray_quit() ) );
}
void KMSystemTray::buildPopupMenu()
{
// Delete any previously created popup menu
delete mPopupMenu;
mPopupMenu = new KPopupMenu();
KMMainWidget * mainWidget = kmkernel->getKMMainWidget();
if ( !mainWidget )
return;
mPopupMenu->insertTitle(*(this->pixmap()), "KMail");
KAction * action;
if ( ( action = mainWidget->action("check_mail") ) )
action->plug( mPopupMenu );
if ( ( action = mainWidget->action("check_mail_in") ) )
action->plug( mPopupMenu );
if ( ( action = mainWidget->action("send_queued") ) )
action->plug( mPopupMenu );
if ( ( action = mainWidget->action("send_queued_via") ) )
action->plug( mPopupMenu );
mPopupMenu->insertSeparator();
if ( ( action = mainWidget->action("new_message") ) )
action->plug( mPopupMenu );
if ( ( action = mainWidget->action("kmail_configure_kmail") ) )
action->plug( mPopupMenu );
mPopupMenu->insertSeparator();
KMainWindow *mainWin = ::qt_cast<KMainWindow*>(kmkernel->getKMMainWidget()->tqtopLevelWidget());
mPopupMenu->insertItem( SmallIcon("exit"), i18n("&Quit"), this, TQT_SLOT(maybeQuit()) );
}
void KMSystemTray::tray_quit()
{
// Quit all of KMail
kapp->quit();
}
KMSystemTray::~KMSystemTray()
{
// unregister the applet
kmkernel->unregisterSystemTrayApplet( this );
delete mPopupMenu;
mPopupMenu = 0;
}
void KMSystemTray::setMode(int newMode)
{
if(newMode == mMode) return;
kdDebug(5006) << "Setting systray mMode to " << newMode << endl;
mMode = newMode;
switch ( mMode ) {
case GlobalSettings::EnumSystemTrayPolicy::ShowAlways:
if ( isHidden() )
show();
break;
case GlobalSettings::EnumSystemTrayPolicy::ShowOnUnread:
if ( mCount == 0 && !isHidden() )
hide();
else if ( mCount > 0 && isHidden() )
show();
break;
default:
kdDebug(5006) << k_funcinfo << " Unknown systray mode " << mMode << endl;
}
}
int KMSystemTray::mode() const
{
return mMode;
}
/**
* Update the count of unread messages. If there are unread messages,
* overlay the count on top of a transparent version of the KMail icon.
* If there is no unread mail, restore the normal KMail icon.
*/
void KMSystemTray::updateCount()
{
if(mCount != 0)
{
int oldPixmapWidth = pixmap()->size().width();
int oldPixmapHeight = pixmap()->size().height();
TQString countString = TQString::number( mCount );
TQFont countFont = KGlobalSettings::generalFont();
countFont.setBold(true);
// decrease the size of the font for the number of unread messages if the
// number doesn't fit into the available space
float countFontSize = countFont.pointSizeFloat();
TQFontMetrics qfm( countFont );
int width = qfm.width( countString );
if( width > oldPixmapWidth )
{
countFontSize *= float( oldPixmapWidth ) / float( width );
countFont.setPointSizeFloat( countFontSize );
}
// Create an image which represents the number of unread messages
// and which has a transparent background.
// Unfortunately this required the following twisted code because for some
// reason text that is drawn on a transparent pixmap is invisible
// (aptqparently the alpha channel isn't changed when the text is drawn).
// Therefore I have to draw the text on a solid background and then remove
// the background by making it transparent with TQPixmap::setMask. This
// involves the slow createHeuristicMask() function (from the API docs:
// "This function is slow because it involves transformation to a TQImage,
// non-trivial computations and a transformation back to a TQBitmap."). Then
// I have to convert the resulting TQPixmap to a TQImage in order to overlay
// the light KMail icon with the number (because KIconEffect::overlay only
// works with TQImage). Finally the resulting TQImage has to be converted
// back to a TQPixmap.
// That's a lot of work for overlaying the KMail icon with the number of
// unread messages, but every other approach I tried failed miserably.
// IK, 2003-09-22
TQPixmap numberPixmap( oldPixmapWidth, oldPixmapHeight );
numberPixmap.fill( TQt::white );
TQPainter p( &numberPixmap );
p.setFont( countFont );
p.setPen( TQt::blue );
p.drawText( numberPixmap.rect(), TQt::AlignCenter, countString );
numberPixmap.setMask( numberPixmap.createHeuristicMask() );
TQImage numberImage = numberPixmap.convertToImage();
// Overlay the light KMail icon with the number image
TQImage iconWithNumberImage = mLightIconImage.copy();
KIconEffect::overlay( iconWithNumberImage, numberImage );
TQPixmap iconWithNumber;
iconWithNumber.convertFromImage( iconWithNumberImage );
setPixmap( iconWithNumber );
} else
{
setPixmap( mDefaultIcon );
}
}
/**
* Refreshes the list of folders we are monitoring. This is called on
* startup and is also connected to the 'changed' signal on the KMFolderMgr.
*/
void KMSystemTray::foldersChanged()
{
/**
* Hide and remove all unread mappings to cover the case where the only
* unread message was in a folder that was just removed.
*/
mFoldersWithUnread.clear();
mCount = 0;
if ( mMode == GlobalSettings::EnumSystemTrayPolicy::ShowOnUnread ) {
hide();
}
/** Disconnect all previous connections */
disconnect(this, TQT_SLOT(updateNewMessageNotification(KMFolder *)));
TQStringList folderNames;
TQValueList<TQGuardedPtr<KMFolder> > folderList;
kmkernel->folderMgr()->createFolderList(&folderNames, &folderList);
kmkernel->imapFolderMgr()->createFolderList(&folderNames, &folderList);
kmkernel->dimapFolderMgr()->createFolderList(&folderNames, &folderList);
kmkernel->searchFolderMgr()->createFolderList(&folderNames, &folderList);
TQStringList::iterator strIt = folderNames.begin();
for(TQValueList<TQGuardedPtr<KMFolder> >::iterator it = folderList.begin();
it != folderList.end() && strIt != folderNames.end(); ++it, ++strIt)
{
KMFolder * currentFolder = *it;
TQString currentName = *strIt;
if ( ((!currentFolder->isSystemFolder() || (currentFolder->name().lower() == "inbox")) ||
(currentFolder->folderType() == KMFolderTypeImap)) &&
!currentFolder->ignoreNewMail() )
{
/** If this is a new folder, start listening for messages */
connect(currentFolder, TQT_SIGNAL(numUnreadMsgsChanged(KMFolder *)),
this, TQT_SLOT(updateNewMessageNotification(KMFolder *)));
/** Check all new folders to see if we started with any new messages */
updateNewMessageNotification(currentFolder);
}
else {
disconnect(currentFolder, TQT_SIGNAL(numUnreadMsgsChanged(KMFolder *)), this, TQT_SLOT(updateNewMessageNotification(KMFolder *)) );
}
}
}
/**
* On left mouse click, switch focus to the first KMMainWidget. On right
* click, bring up a list of all folders with a count of unread messages.
*/
void KMSystemTray::mousePressEvent(TQMouseEvent *e)
{
// switch to kmail on left mouse button
if( e->button() == LeftButton )
{
if( mParentVisible && mainWindowIsOnCurrentDesktop() )
hideKMail();
else
showKMail();
}
// open popup menu on right mouse button
if( e->button() == RightButton )
{
mPopupFolders.clear();
mPopupFolders.reserve( mFoldersWithUnread.count() );
// Rebuild popup menu at click time to minimize race condition if
// the base KMainWidget is closed.
buildPopupMenu();
if(mNewMessagePopupId != -1)
{
mPopupMenu->removeItem(mNewMessagePopupId);
}
if(mFoldersWithUnread.count() > 0)
{
KPopupMenu *newMessagesPopup = new KPopupMenu();
TQMap<TQGuardedPtr<KMFolder>, int>::Iterator it = mFoldersWithUnread.begin();
for(uint i=0; it != mFoldersWithUnread.end(); ++i)
{
kdDebug(5006) << "Adding folder" << endl;
mPopupFolders.append( it.key() );
TQString item = prettyName(it.key()) + " (" + TQString::number(it.data()) + ")";
newMessagesPopup->insertItem(item, this, TQT_SLOT(selectedAccount(int)), 0, i);
++it;
}
mNewMessagePopupId = mPopupMenu->insertItem(i18n("New Messages In"),
newMessagesPopup, mNewMessagePopupId, 3);
kdDebug(5006) << "Folders added" << endl;
}
mPopupMenu->popup(e->globalPos());
}
}
/**
* Return the name of the folder in which the mail is deposited, prepended
* with the account name if the folder is IMAP.
*/
TQString KMSystemTray::prettyName(KMFolder * fldr)
{
TQString rvalue = fldr->label();
if(fldr->folderType() == KMFolderTypeImap)
{
KMFolderImap * imap = dynamic_cast<KMFolderImap*> (fldr->storage());
assert(imap);
if((imap->account() != 0) &&
(imap->account()->name() != 0) )
{
kdDebug(5006) << "IMAP folder, prepend label with type" << endl;
rvalue = imap->account()->name() + "->" + rvalue;
}
}
kdDebug(5006) << "Got label " << rvalue << endl;
return rvalue;
}
bool KMSystemTray::mainWindowIsOnCurrentDesktop()
{
KMMainWidget * mainWidget = kmkernel->getKMMainWidget();
if ( !mainWidget )
return false;
TQWidget *mainWin = kmkernel->getKMMainWidget()->tqtopLevelWidget();
if ( !mainWin )
return false;
return KWin::windowInfo( mainWin->winId(),
NET::WMDesktop ).isOnCurrentDesktop();
}
/**
* Shows and raises the first KMMainWidget and
* switches to the appropriate virtual desktop.
*/
void KMSystemTray::showKMail()
{
if (!kmkernel->getKMMainWidget())
return;
TQWidget *mainWin = kmkernel->getKMMainWidget()->tqtopLevelWidget();
assert(mainWin);
if(mainWin)
{
KWin::WindowInfo cur = KWin::windowInfo( mainWin->winId(), NET::WMDesktop );
if ( cur.valid() ) mDesktopOfMainWin = cur.desktop();
// switch to appropriate desktop
if ( mDesktopOfMainWin != NET::OnAllDesktops )
KWin::setCurrentDesktop( mDesktopOfMainWin );
if ( !mParentVisible ) {
if ( mDesktopOfMainWin == NET::OnAllDesktops )
KWin::setOnAllDesktops( mainWin->winId(), true );
mainWin->move( mPosOfMainWin );
mainWin->show();
}
KWin::activateWindow( mainWin->winId() );
mParentVisible = true;
}
kmkernel->raise();
//Fake that the folders have changed so that the icon status is correct
foldersChanged();
}
void KMSystemTray::hideKMail()
{
if (!kmkernel->getKMMainWidget())
return;
TQWidget *mainWin = kmkernel->getKMMainWidget()->tqtopLevelWidget();
assert(mainWin);
if(mainWin)
{
mDesktopOfMainWin = KWin::windowInfo( mainWin->winId(),
NET::WMDesktop ).desktop();
mPosOfMainWin = mainWin->pos();
// iconifying is unnecessary, but it looks cooler
KWin::iconifyWindow( mainWin->winId() );
mainWin->hide();
mParentVisible = false;
}
}
/**
* Called on startup of the KMSystemTray and when the numUnreadMsgsChanged signal
* is emitted for one of the watched folders. Shows the system tray icon if there
* are new messages and the icon was hidden, or hides the system tray icon if there
* are no more new messages.
*/
void KMSystemTray::updateNewMessageNotification(KMFolder * fldr)
{
//We don't want to count messages from search folders as they
// already counted as part of their original folders
if( !fldr ||
fldr->folderType() == KMFolderTypeSearch )
{
// kdDebug(5006) << "Null or a search folder, can't mess with that" << endl;
return;
}
mPendingUpdates[ fldr ] = true;
if ( time( 0 ) - mLastUpdate > 2 ) {
mUpdateTimer->stop();
updateNewMessages();
}
else {
mUpdateTimer->start(150, true);
}
}
void KMSystemTray::updateNewMessages()
{
for ( TQMap<TQGuardedPtr<KMFolder>, bool>::Iterator it = mPendingUpdates.begin();
it != mPendingUpdates.end(); ++it)
{
KMFolder *fldr = it.key();
if ( !fldr ) // deleted folder
continue;
/** The number of unread messages in that folder */
int unread = fldr->countUnread();
TQMap<TQGuardedPtr<KMFolder>, int>::Iterator it =
mFoldersWithUnread.tqfind(fldr);
bool unmapped = (it == mFoldersWithUnread.end());
/** If the folder is not mapped yet, increment count by numUnread
in folder */
if(unmapped) mCount += unread;
/* Otherwise, get the difference between the numUnread in the folder and
* our last known version, and adjust mCount with that difference */
else
{
int diff = unread - it.data();
mCount += diff;
}
if(unread > 0)
{
/** Add folder to our internal store, or update unread count if already mapped */
mFoldersWithUnread.insert(fldr, unread);
//kdDebug(5006) << "There are now " << mFoldersWithUnread.count() << " folders with unread" << endl;
}
/**
* Look for folder in the list of folders already represented. If there are
* unread messages and the system tray icon is hidden, show it. If there are
* no unread messages, remove the folder from the mapping.
*/
if(unmapped)
{
/** Spurious notification, ignore */
if(unread == 0) continue;
/** Make sure the icon will be displayed */
if ( ( mMode == GlobalSettings::EnumSystemTrayPolicy::ShowOnUnread )
&& isHidden() ) {
show();
}
} else
{
if(unread == 0)
{
kdDebug(5006) << "Removing folder from internal store " << fldr->name() << endl;
/** Remove the folder from the internal store */
mFoldersWithUnread.remove(fldr);
/** if this was the last folder in the dictionary, hide the systemtray icon */
if(mFoldersWithUnread.count() == 0)
{
mPopupFolders.clear();
disconnect(this, TQT_SLOT(selectedAccount(int)));
mCount = 0;
if ( mMode == GlobalSettings::EnumSystemTrayPolicy::ShowOnUnread ) {
hide();
}
}
}
}
}
mPendingUpdates.clear();
updateCount();
/** Update tooltip to reflect count of unread messages */
TQToolTip::remove(this);
TQToolTip::add(this, mCount == 0 ?
i18n("There are no unread messages")
: i18n("There is 1 unread message.",
"There are %n unread messages.",
mCount));
mLastUpdate = time( 0 );
}
/**
* Called when user selects a folder name from the popup menu. Shows
* the first KMMainWin in the memberlist and jumps to the first unread
* message in the selected folder.
*/
void KMSystemTray::selectedAccount(int id)
{
showKMail();
KMMainWidget * mainWidget = kmkernel->getKMMainWidget();
if (!mainWidget)
{
kmkernel->openReader();
mainWidget = kmkernel->getKMMainWidget();
}
assert(mainWidget);
/** Select folder */
KMFolder * fldr = mPopupFolders.at(id);
if(!fldr) return;
KMFolderTree * ft = mainWidget->folderTree();
if(!ft) return;
TQListViewItem * fldrIdx = ft->indexOfFolder(fldr);
if(!fldrIdx) return;
ft->setCurrentItem(fldrIdx);
ft->selectCurrentFolder();
}
bool KMSystemTray::hasUnreadMail() const
{
return ( mCount != 0 );
}
#include "kmsystemtray.moc"
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