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tdebase/klipper/toplevel.cpp

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// -*- Mode: C++; c-basic-offset: 4; indent-tabs-mode: nil; tab-width: 8; -*-
/* This file is part of the KDE project
Copyright (C) by Andrew Stanley-Jones
Copyright (C) 2000 by Carsten Pfeiffer <pfeiffer@kde.org>
Copyright (C) 2004 Esben Mose Hansen <kde@mosehansen.dk>
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; see the file COPYING. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include <tqclipboard.h>
#include <tqcursor.h>
#include <tqdatetime.h>
#include <tqfile.h>
#include <tqintdict.h>
#include <tqpainter.h>
#include <tqtooltip.h>
#include <tqmime.h>
#include <tqdragobject.h>
#include <kaboutdata.h>
#include <kaction.h>
#include <kapplication.h>
#include <kconfig.h>
#include <kglobal.h>
#include <kipc.h>
#include <kkeydialog.h>
#include <klocale.h>
#include <kmessagebox.h>
#include <ksavefile.h>
#include <kstandarddirs.h>
#include <ksimpleconfig.h>
#include <kstringhandler.h>
#include <ksystemtray.h>
#include <kurldrag.h>
#include <kwin.h>
#include <kdebug.h>
#include <kglobalsettings.h>
#include <dcopclient.h>
#include <kiconloader.h>
#include <khelpmenu.h>
#include <kstdguiitem.h>
#include "configdialog.h"
#include "toplevel.h"
#include "urlgrabber.h"
#include "version.h"
#include "clipboardpoll.h"
#include "history.h"
#include "historyitem.h"
#include "historystringitem.h"
#include "klipperpopup.h"
#include <zlib.h>
#include <X11/Xlib.h>
#include <X11/Xatom.h>
#include <kclipboard.h>
namespace {
/**
* Use this when manipulating the clipboard
* from within clipboard-related signals.
*
* This avoids issues such as mouse-selections that immediately
* disappear.
* pattern: Resource Acqusition is Initialisation (RAII)
*
* (This is not threadsafe, so don't try to use such in threaded
* applications).
*/
struct Ignore {
Ignore(int& locklevel) : locklevelref(locklevel) {
locklevelref++;
}
~Ignore() {
locklevelref--;
}
private:
int& locklevelref;
};
}
/**
* Helper class to save history upon session exit.
*/
class KlipperSessionManaged : public KSessionManaged
{
public:
KlipperSessionManaged( KlipperWidget* k )
: klipper( k )
{}
/**
* Save state upon session exit.
*
* Saving history on session save
*/
virtual bool commitData( QSessionManager& ) {
klipper->saveSession();
return true;
}
private:
KlipperWidget* klipper;
};
extern bool qt_qclipboard_bailout_hack;
#if KDE_IS_VERSION( 3, 9, 0 )
#error Check status of #80072 with Qt4.
#endif
static void ensureGlobalSyncOff(KConfig* config);
// config == kapp->config for process, otherwise applet
KlipperWidget::KlipperWidget( TQWidget *parent, KConfig* config )
: TQWidget( parent )
, DCOPObject( "klipper" )
, m_overflowCounter( 0 )
, locklevel( 0 )
, m_config( config )
, m_pendingContentsCheck( false )
, session_managed( new KlipperSessionManaged( this ))
{
qt_qclipboard_bailout_hack = true;
// We don't use the clipboardsynchronizer anymore, and it confuses Klipper
ensureGlobalSyncOff(m_config);
updateTimestamp(); // read initial X user time
setBackgroundMode( X11ParentRelative );
clip = kapp->clipboard();
connect( &m_overflowClearTimer, TQT_SIGNAL( timeout()), TQT_SLOT( slotClearOverflow()));
m_overflowClearTimer.start( 1000 );
connect( &m_pendingCheckTimer, TQT_SIGNAL( timeout()), TQT_SLOT( slotCheckPending()));
m_history = new History( this, "main_history" );
// we need that collection, otherwise KToggleAction is not happy :}
TQString defaultGroup( "default" );
KActionCollection *collection = new KActionCollection( this, "my collection" );
toggleURLGrabAction = new KToggleAction( collection, "toggleUrlGrabAction" );
toggleURLGrabAction->setEnabled( true );
toggleURLGrabAction->setGroup( defaultGroup );
clearHistoryAction = new KAction( i18n("C&lear Clipboard History"),
"history_clear",
0,
history(),
TQT_SLOT( slotClear() ),
collection,
"clearHistoryAction" );
connect( clearHistoryAction, TQT_SIGNAL( activated() ), TQT_SLOT( slotClearClipboard() ) );
clearHistoryAction->setGroup( defaultGroup );
configureAction = new KAction( i18n("&Configure Klipper..."),
"configure",
0,
this,
TQT_SLOT( slotConfigure() ),
collection,
"configureAction" );
configureAction->setGroup( defaultGroup );
quitAction = new KAction( i18n("&Quit"),
"exit",
0,
this,
TQT_SLOT( slotQuit() ),
collection,
"quitAction" );
quitAction->setGroup( "exit" );
myURLGrabber = 0L;
KConfig *kc = m_config;
readConfiguration( kc );
setURLGrabberEnabled( bURLGrabber );
hideTimer = new TQTime();
showTimer = new TQTime();
readProperties(m_config);
connect(kapp, TQT_SIGNAL(settingsChanged(int)), TQT_SLOT(slotSettingsChanged(int)));
poll = new ClipboardPoll( this );
connect( poll, TQT_SIGNAL( clipboardChanged( bool ) ),
this, TQT_SLOT( newClipData( bool ) ) );
if ( isApplet() ) {
m_pixmap = KSystemTray::loadIcon( "klipper" );
}
else {
m_pixmap = KSystemTray::loadSizedIcon( "klipper", width() );
}
m_iconOrigWidth = width();
m_iconOrigHeight = height();
adjustSize();
globalKeys = new KGlobalAccel(this);
KGlobalAccel* keys = globalKeys;
#include "klipperbindings.cpp"
// the keys need to be read from kdeglobals, not kickerrc --ellis, 22/9/02
globalKeys->readSettings();
globalKeys->updateConnections();
toggleURLGrabAction->setShortcut(globalKeys->shortcut("Enable/Disable Clipboard Actions"));
connect( toggleURLGrabAction, TQT_SIGNAL( toggled( bool )),
this, TQT_SLOT( setURLGrabberEnabled( bool )));
KlipperPopup* popup = history()->popup();
connect ( history(), TQT_SIGNAL( topChanged() ), TQT_SLOT( slotHistoryTopChanged() ) );
connect( popup, TQT_SIGNAL( aboutToHide() ), TQT_SLOT( slotStartHideTimer() ) );
connect( popup, TQT_SIGNAL( aboutToShow() ), TQT_SLOT( slotStartShowTimer() ) );
popup->plugAction( toggleURLGrabAction );
popup->plugAction( clearHistoryAction );
popup->plugAction( configureAction );
if ( !isApplet() ) {
popup->plugAction( quitAction );
}
TQToolTip::add( this, i18n("Klipper - clipboard tool") );
}
KlipperWidget::~KlipperWidget()
{
delete session_managed;
delete showTimer;
delete hideTimer;
delete myURLGrabber;
if( m_config != kapp->config())
delete m_config;
qt_qclipboard_bailout_hack = false;
}
void KlipperWidget::adjustSize()
{
resize( m_pixmap.size() );
}
// DCOP
TQString KlipperWidget::getClipboardContents()
{
return getClipboardHistoryItem(0);
}
// DCOP - don't call from Klipper itself
void KlipperWidget::setClipboardContents(TQString s)
{
Ignore lock( locklevel );
updateTimestamp();
HistoryStringItem* item = new HistoryStringItem( s );
setClipboard( *item, Clipboard | Selection);
history()->insert( item );
}
// DCOP - don't call from Klipper itself
void KlipperWidget::clearClipboardContents()
{
updateTimestamp();
slotClearClipboard();
}
// DCOP - don't call from Klipper itself
void KlipperWidget::clearClipboardHistory()
{
updateTimestamp();
slotClearClipboard();
history()->slotClear();
saveSession();
}
void KlipperWidget::mousePressEvent(TQMouseEvent *e)
{
if ( e->button() != LeftButton && e->button() != RightButton )
return;
// if we only hid the menu less than a third of a second ago,
// it's probably because the user clicked on the klipper icon
// to hide it, and therefore won't want it shown again.
if ( hideTimer->elapsed() > 300 ) {
slotPopupMenu();
}
}
void KlipperWidget::paintEvent(TQPaintEvent *)
{
TQPainter p(this);
// Honor Free Desktop specifications that allow for arbitrary system tray icon sizes
if ((m_iconOrigWidth != width()) || (m_iconOrigHeight != height())) {
TQImage newIcon;
m_pixmap = KSystemTray::loadSizedIcon( "klipper", width() );
newIcon = m_pixmap;
newIcon = newIcon.smoothScale(width(), height());
m_scaledpixmap = newIcon;
}
int x = (width() - m_scaledpixmap.width()) / 2;
int y = (height() - m_scaledpixmap.height()) / 2;
if ( x < 0 ) x = 0;
if ( y < 0 ) y = 0;
p.drawPixmap(x, y, m_scaledpixmap);
p.end();
}
void KlipperWidget::slotStartHideTimer()
{
hideTimer->start();
}
void KlipperWidget::slotStartShowTimer()
{
showTimer->start();
}
void KlipperWidget::showPopupMenu( TQPopupMenu *menu )
{
Q_ASSERT( menu != 0L );
TQSize size = menu->sizeHint(); // geometry is not valid until it's shown
if (bPopupAtMouse) {
TQPoint g = TQCursor::pos();
if ( size.height() < g.y() )
menu->popup(TQPoint( g.x(), g.y() - size.height()));
else
menu->popup(TQPoint(g.x(), g.y()));
} else {
KWin::WindowInfo i = KWin::windowInfo( winId(), NET::WMGeometry );
TQRect g = i.geometry();
TQRect screen = KGlobalSettings::desktopGeometry(g.center());
if ( g.x()-screen.x() > screen.width()/2 &&
g.y()-screen.y() + size.height() > screen.height() )
menu->popup(TQPoint( g.x(), g.y() - size.height()));
else
menu->popup(TQPoint( g.x() + width(), g.y() + height()));
// menu->exec(mapToGlobal(TQPoint( width()/2, height()/2 )));
}
}
bool KlipperWidget::loadHistory() {
static const char* const failed_load_warning =
"Failed to load history resource. Clipboard history cannot be read.";
// don't use "appdata", klipper is also a kicker applet
TQString history_file_name = ::locateLocal( "data", "klipper/history2.lst" );
TQFile history_file( history_file_name );
bool oldfile = false;
if ( !history_file.exists() ) { // backwards compatibility
oldfile = true;
history_file_name = ::locateLocal( "data", "klipper/history.lst" );
history_file.setName( history_file_name );
if ( !history_file.exists() ) {
history_file_name = ::locateLocal( "data", "kicker/history.lst" );
history_file.setName( history_file_name );
if ( !history_file.exists() ) {
return false;
}
}
}
if ( !history_file.open( IO_ReadOnly ) ) {
kdWarning() << failed_load_warning << ": " << history_file.errorString() << endl;
return false;
}
TQDataStream file_stream( &history_file );
if( file_stream.atEnd()) {
kdWarning() << failed_load_warning << endl;
return false;
}
TQDataStream* history_stream = &file_stream;
TQByteArray data;
if( !oldfile ) {
Q_UINT32 crc;
file_stream >> crc >> data;
if( crc32( 0, reinterpret_cast<unsigned char *>( data.data() ), data.size() ) != crc ) {
kdWarning() << failed_load_warning << ": " << history_file.errorString() << endl;
return false;
}
history_stream = new TQDataStream( data, IO_ReadOnly );
}
char* version;
*history_stream >> version;
delete[] version;
// The list needs to be reversed, as it is saved
// youngest-first to keep the most important clipboard
// items at the top, but the history is created oldest
// first.
TQPtrList<HistoryItem> reverseList;
for ( HistoryItem* item = HistoryItem::create( *history_stream );
item;
item = HistoryItem::create( *history_stream ) )
{
reverseList.prepend( item );
}
for ( HistoryItem* item = reverseList.first();
item;
item = reverseList.next() )
{
history()->forceInsert( item );
}
if ( !history()->empty() ) {
m_lastSelection = -1;
m_lastClipboard = -1;
setClipboard( *history()->first(), Clipboard | Selection );
}
if( history_stream != &file_stream )
delete history_stream;
return true;
}
void KlipperWidget::saveHistory() {
static const char* const failed_save_warning =
"Failed to save history. Clipboard history cannot be saved.";
// don't use "appdata", klipper is also a kicker applet
TQString history_file_name( ::locateLocal( "data", "klipper/history2.lst" ) );
if ( history_file_name.isNull() || history_file_name.isEmpty() ) {
kdWarning() << failed_save_warning << endl;
return;
}
KSaveFile history_file( history_file_name );
if ( history_file.status() != 0 ) {
kdWarning() << failed_save_warning << endl;
return;
}
TQByteArray data;
TQDataStream history_stream( data, IO_WriteOnly );
history_stream << klipper_version; // const char*
for ( const HistoryItem* item = history()->first(); item; item = history()->next() ) {
history_stream << item;
}
Q_UINT32 crc = crc32( 0, reinterpret_cast<unsigned char *>( data.data() ), data.size() );
*history_file.dataStream() << crc << data;
}
void KlipperWidget::readProperties(KConfig *kc)
{
TQStringList dataList;
history()->slotClear();
if (bKeepContents) { // load old clipboard if configured
if ( !loadHistory() ) {
// Try to load from the old config file.
// Remove this at some point.
KConfigGroupSaver groupSaver(kc, "General");
dataList = kc->readListEntry("ClipboardData");
for (TQStringList::ConstIterator it = dataList.end();
it != dataList.begin();
)
{
history()->forceInsert( new HistoryStringItem( *( --it ) ) );
}
if ( !dataList.isEmpty() )
{
m_lastSelection = -1;
m_lastClipboard = -1;
setClipboard( *history()->first(), Clipboard | Selection );
}
}
}
}
void KlipperWidget::readConfiguration( KConfig *kc )
{
kc->setGroup("General");
bPopupAtMouse = kc->readBoolEntry("PopupAtMousePosition", false);
bKeepContents = kc->readBoolEntry("KeepClipboardContents", true);
bURLGrabber = kc->readBoolEntry("URLGrabberEnabled", false);
bReplayActionInHistory = kc->readBoolEntry("ReplayActionInHistory", false);
bNoNullClipboard = kc->readBoolEntry("NoEmptyClipboard", true);
bUseGUIRegExpEditor = kc->readBoolEntry("UseGUIRegExpEditor", true );
history()->max_size( kc->readNumEntry("MaxClipItems", 7) );
bIgnoreSelection = kc->readBoolEntry("IgnoreSelection", false);
bSynchronize = kc->readBoolEntry("Synchronize", false);
bSelectionTextOnly = kc->readBoolEntry("SelectionTextOnly",true);
bIgnoreImages = kc->readBoolEntry("IgnoreImages",true);
}
void KlipperWidget::writeConfiguration( KConfig *kc )
{
kc->setGroup("General");
kc->writeEntry("PopupAtMousePosition", bPopupAtMouse);
kc->writeEntry("KeepClipboardContents", bKeepContents);
kc->writeEntry("ReplayActionInHistory", bReplayActionInHistory);
kc->writeEntry("NoEmptyClipboard", bNoNullClipboard);
kc->writeEntry("UseGUIRegExpEditor", bUseGUIRegExpEditor);
kc->writeEntry("MaxClipItems", history()->max_size() );
kc->writeEntry("IgnoreSelection", bIgnoreSelection);
kc->writeEntry("Synchronize", bSynchronize );
kc->writeEntry("SelectionTextOnly", bSelectionTextOnly);
kc->writeEntry("TrackImages", bIgnoreImages);
kc->writeEntry("Version", klipper_version );
if ( myURLGrabber )
myURLGrabber->writeConfiguration( kc );
kc->sync();
}
// save session on shutdown. Don't simply use the c'tor, as that may not be called.
void KlipperWidget::saveSession()
{
if ( bKeepContents ) { // save the clipboard eventually
saveHistory();
}
}
void KlipperWidget::slotSettingsChanged( int category )
{
if ( category == (int) KApplication::SETTINGS_SHORTCUTS ) {
globalKeys->readSettings();
globalKeys->updateConnections();
toggleURLGrabAction->setShortcut(globalKeys->shortcut("Enable/Disable Clipboard Actions"));
}
}
void KlipperWidget::disableURLGrabber()
{
KMessageBox::information( 0L,
i18n( "You can enable URL actions later by right-clicking on the "
"Klipper icon and selecting 'Enable Actions'" ) );
setURLGrabberEnabled( false );
}
void KlipperWidget::slotConfigure()
{
bool haveURLGrabber = bURLGrabber;
if ( !myURLGrabber ) { // temporary, for the config-dialog
setURLGrabberEnabled( true );
readConfiguration( m_config );
}
ConfigDialog *dlg = new ConfigDialog( myURLGrabber->actionList(),
globalKeys, isApplet() );
dlg->setKeepContents( bKeepContents );
dlg->setPopupAtMousePos( bPopupAtMouse );
dlg->setStripWhiteSpace( myURLGrabber->stripWhiteSpace() );
dlg->setReplayActionInHistory( bReplayActionInHistory );
dlg->setNoNullClipboard( bNoNullClipboard );
dlg->setUseGUIRegExpEditor( bUseGUIRegExpEditor );
dlg->setPopupTimeout( myURLGrabber->popupTimeout() );
dlg->setMaxItems( history()->max_size() );
dlg->setIgnoreSelection( bIgnoreSelection );
dlg->setSynchronize( bSynchronize );
dlg->setNoActionsFor( myURLGrabber->avoidWindows() );
if ( dlg->exec() == TQDialog::Accepted ) {
bKeepContents = dlg->keepContents();
bPopupAtMouse = dlg->popupAtMousePos();
bReplayActionInHistory = dlg->replayActionInHistory();
bNoNullClipboard = dlg->noNullClipboard();
bIgnoreSelection = dlg->ignoreSelection();
bSynchronize = dlg->synchronize();
bUseGUIRegExpEditor = dlg->useGUIRegExpEditor();
dlg->commitShortcuts();
// the keys need to be written to kdeglobals, not kickerrc --ellis, 22/9/02
globalKeys->writeSettings(0, true);
globalKeys->updateConnections();
toggleURLGrabAction->setShortcut(globalKeys->shortcut("Enable/Disable Clipboard Actions"));
myURLGrabber->setActionList( dlg->actionList() );
myURLGrabber->setPopupTimeout( dlg->popupTimeout() );
myURLGrabber->setStripWhiteSpace( dlg->stripWhiteSpace() );
myURLGrabber->setAvoidWindows( dlg->noActionsFor() );
history()->max_size( dlg->maxItems() );
writeConfiguration( m_config );
}
setURLGrabberEnabled( haveURLGrabber );
delete dlg;
}
void KlipperWidget::slotQuit()
{
// If the menu was just opened, likely the user
// selected quit by accident while attempting to
// click the Klipper icon.
if ( showTimer->elapsed() < 300 ) {
return;
}
saveSession();
int autoStart = KMessageBox::questionYesNoCancel( 0L, i18n("Should Klipper start automatically\nwhen you login?"), i18n("Automatically Start Klipper?"), i18n("Start"), i18n("Do Not Start") );
KConfig *config = KGlobal::config();
config->setGroup("General");
if ( autoStart == KMessageBox::Yes ) {
config->writeEntry("AutoStart", true);
} else if ( autoStart == KMessageBox::No) {
config->writeEntry("AutoStart", false);
} else // cancel chosen don't quit
return;
config->sync();
kapp->quit();
}
void KlipperWidget::slotPopupMenu() {
KlipperPopup* popup = history()->popup();
popup->ensureClean();
showPopupMenu( popup );
}
void KlipperWidget::slotRepeatAction()
{
if ( !myURLGrabber ) {
myURLGrabber = new URLGrabber( m_config );
connect( myURLGrabber, TQT_SIGNAL( sigPopup( TQPopupMenu * )),
TQT_SLOT( showPopupMenu( TQPopupMenu * )) );
connect( myURLGrabber, TQT_SIGNAL( sigDisablePopup() ),
this, TQT_SLOT( disableURLGrabber() ) );
}
const HistoryStringItem* top = dynamic_cast<const HistoryStringItem*>( history()->first() );
if ( top ) {
myURLGrabber->invokeAction( top->text() );
}
}
void KlipperWidget::setURLGrabberEnabled( bool enable )
{
if (enable != bURLGrabber) {
bURLGrabber = enable;
KConfig *kc = m_config;
kc->setGroup("General");
kc->writeEntry("URLGrabberEnabled", bURLGrabber);
m_lastURLGrabberTextSelection = TQString();
m_lastURLGrabberTextClipboard = TQString();
}
toggleURLGrabAction->setChecked( enable );
if ( !bURLGrabber ) {
delete myURLGrabber;
myURLGrabber = 0L;
toggleURLGrabAction->setText(i18n("Enable &Actions"));
}
else {
toggleURLGrabAction->setText(i18n("&Actions Enabled"));
if ( !myURLGrabber ) {
myURLGrabber = new URLGrabber( m_config );
connect( myURLGrabber, TQT_SIGNAL( sigPopup( TQPopupMenu * )),
TQT_SLOT( showPopupMenu( TQPopupMenu * )) );
connect( myURLGrabber, TQT_SIGNAL( sigDisablePopup() ),
this, TQT_SLOT( disableURLGrabber() ) );
}
}
}
void KlipperWidget::toggleURLGrabber()
{
setURLGrabberEnabled( !bURLGrabber );
}
void KlipperWidget::slotHistoryTopChanged() {
if ( locklevel ) {
return;
}
const HistoryItem* topitem = history()->first();
if ( topitem ) {
setClipboard( *topitem, Clipboard | Selection );
}
if ( bReplayActionInHistory && bURLGrabber ) {
slotRepeatAction();
}
}
void KlipperWidget::slotClearClipboard()
{
Ignore lock( locklevel );
clip->clear(QClipboard::Selection);
clip->clear(QClipboard::Clipboard);
}
//XXX: Should die, and the DCOP signal handled sensible.
TQString KlipperWidget::clipboardContents( bool * /*isSelection*/ )
{
kdWarning() << "Obsolete function called. Please fix" << endl;
#if 0
bool selection = true;
TQMimeSource* data = clip->data(QClipboard::Selection);
if ( data->serialNumber() == m_lastSelection )
{
TQString clipContents = clip->text(QClipboard::Clipboard);
if ( clipContents != m_lastClipboard )
{
contents = clipContents;
selection = false;
}
else
selection = true;
}
if ( isSelection )
*isSelection = selection;
#endif
return 0;
}
void KlipperWidget::applyClipChanges( const TQMimeSource& clipData )
{
if ( locklevel )
return;
Ignore lock( locklevel );
history()->insert( HistoryItem::create( clipData ) );
}
void KlipperWidget::newClipData( bool selectionMode )
{
if ( locklevel ) {
return;
}
if( blockFetchingNewData())
return;
checkClipData( selectionMode );
}
void KlipperWidget::clipboardSignalArrived( bool selectionMode )
{
if ( locklevel ) {
return;
}
if( blockFetchingNewData())
return;
updateTimestamp();
checkClipData( selectionMode );
}
// Protection against too many clipboard data changes. Lyx responds to clipboard data
// requests with setting new clipboard data, so if Lyx takes over clipboard,
// Klipper notices, requests this data, this triggers "new" clipboard contents
// from Lyx, so Klipper notices again, requests this data, ... you get the idea.
const int MAX_CLIPBOARD_CHANGES = 10; // max changes per second
bool KlipperWidget::blockFetchingNewData()
{
// Hacks for #85198 and #80302.
// #85198 - block fetching new clipboard contents if Shift is pressed and mouse is not,
// this may mean the user is doing selection using the keyboard, in which case
// it's possible the app sets new clipboard contents after every change - Klipper's
// history would list them all.
// #80302 - OOo (v1.1.3 at least) has a bug that if Klipper requests its clipboard contents
// while the user is doing a selection using the mouse, OOo stops updating the clipboard
// contents, so in practice it's like the user has selected only the part which was
// selected when Klipper asked first.
ButtonState buttonstate = kapp->keyboardMouseState();
if( ( buttonstate & ( ShiftButton | LeftButton )) == ShiftButton // #85198
|| ( buttonstate & LeftButton ) == LeftButton ) { // #80302
m_pendingContentsCheck = true;
m_pendingCheckTimer.start( 100, true );
return true;
}
m_pendingContentsCheck = false;
if( ++m_overflowCounter > MAX_CLIPBOARD_CHANGES )
return true;
return false;
}
void KlipperWidget::slotCheckPending()
{
if( !m_pendingContentsCheck )
return;
m_pendingContentsCheck = false; // blockFetchingNewData() will be called again
updateTimestamp();
newClipData( true ); // always selection
}
void KlipperWidget::checkClipData( bool selectionMode )
{
if ( ignoreClipboardChanges() ) // internal to klipper, ignoring TQSpinBox selections
{
// keep our old clipboard, thanks
// This won't quite work, but it's close enough for now.
// The trouble is that the top selection =! top clipboard
// but we don't track that yet. We will....
const HistoryItem* top = history()->first();
if ( top ) {
setClipboard( *top, selectionMode ? Selection : Clipboard);
}
return;
}
// debug code
// debug code
#ifdef NOISY_KLIPPER
kdDebug() << "Checking clip data" << endl;
#endif
#if 0
kdDebug() << "====== c h e c k C l i p D a t a ============================"
<< kdBacktrace()
<< "====== c h e c k C l i p D a t a ============================"
<< endl;;
#endif
#if 0
if ( sender() ) {
kdDebug() << "sender=" << sender()->name() << endl;
} else {
kdDebug() << "no sender" << endl;
}
#endif
#if 0
kdDebug() << "\nselectionMode=" << selectionMode
<< "\nserialNo=" << clip->data()->serialNumber() << " (sel,cli)=(" << m_lastSelection << "," << m_lastClipboard << ")"
<< "\nowning (sel,cli)=(" << clip->ownsSelection() << "," << clip->ownsClipboard() << ")"
<< "\ntext=" << clip->text( selectionMode ? QClipboard::Selection : QClipboard::Clipboard) << endl;
#endif
#if 0
const char *format;
int i = 0;
while ( (format = clip->data()->format( i++ )) )
{
qDebug( " format: %s", format);
}
#endif
TQMimeSource* data = clip->data( selectionMode ? QClipboard::Selection : QClipboard::Clipboard );
if ( !data ) {
kdWarning("No data in clipboard. This not not supposed to happen." );
return;
}
int lastSerialNo = selectionMode ? m_lastSelection : m_lastClipboard;
bool changed = data->serialNumber() != lastSerialNo;
bool clipEmpty = ( data->format() == 0L );
if ( changed && clipEmpty && bNoNullClipboard ) {
const HistoryItem* top = history()->first();
if ( top ) {
// keep old clipboard after someone set it to null
#ifdef NOISY_KLIPPER
kdDebug() << "Resetting clipboard (Prevent empty clipboard)" << endl;
#endif
setClipboard( *top, selectionMode ? Selection : Clipboard );
}
return;
}
// this must be below the "bNoNullClipboard" handling code!
// XXX: I want a better handling of selection/clipboard in general.
// XXX: Order sensitive code. Must die.
if ( selectionMode && bIgnoreSelection )
return;
if( selectionMode && bSelectionTextOnly && !TQTextDrag::canDecode( data ))
return;
if( KURLDrag::canDecode( data ))
; // ok
else if( TQTextDrag::canDecode( data ))
; // ok
else if( TQImageDrag::canDecode( data ))
{
// Limit mimetypes that are tracked by Klipper (this is basically a workaround
// for #109032). Can't add UI in 3.5 because of string freeze, and I'm not sure
// if this actually needs to be more configurable than only text vs all klipper knows.
if( bIgnoreImages )
return;
else {
// ok
}
}
else // unknown, ignore
return;
// store old contents:
if ( selectionMode )
m_lastSelection = data->serialNumber();
else
m_lastClipboard = data->serialNumber();
TQString& lastURLGrabberText = selectionMode
? m_lastURLGrabberTextSelection : m_lastURLGrabberTextClipboard;
if( TQTextDrag::canDecode( data ))
{
if ( bURLGrabber && myURLGrabber )
{
TQString text;
TQTextDrag::decode( data, text );
// Make sure URLGrabber doesn't repeat all the time if klipper reads the same
// text all the time (e.g. because XFixes is not available and the application
// has broken TIMESTAMP target). Using most recent history item may not always
// work.
if ( text != lastURLGrabberText )
{
lastURLGrabberText = text;
if ( myURLGrabber->checkNewData( text ) )
{
return; // don't add into the history
}
}
}
else
lastURLGrabberText = TQString();
}
else
lastURLGrabberText = TQString();
if (changed) {
applyClipChanges( *data );
#ifdef NOISY_KLIPPER
kdDebug() << "Synchronize?" << ( bSynchronize ? "yes" : "no" ) << endl;
#endif
if ( bSynchronize ) {
const HistoryItem* topItem = history()->first();
if ( topItem ) {
setClipboard( *topItem, selectionMode ? Clipboard : Selection );
}
}
}
}
void KlipperWidget::setClipboard( const HistoryItem& item, int mode )
{
Ignore lock( locklevel );
Q_ASSERT( ( mode & 1 ) == 0 ); // Warn if trying to pass a boolean as a mode.
if ( mode & Selection ) {
#ifdef NOSIY_KLIPPER
kdDebug() << "Setting selection to <" << item.text() << ">" << endl;
#endif
clip->setData( item.mimeSource(), QClipboard::Selection );
m_lastSelection = clip->data()->serialNumber();
}
if ( mode & Clipboard ) {
#ifdef NOSIY_KLIPPER
kdDebug() << "Setting clipboard to <" << item.text() << ">" << endl;
#endif
clip->setData( item.mimeSource(), QClipboard::Clipboard );
m_lastClipboard = clip->data()->serialNumber();
}
}
void KlipperWidget::slotClearOverflow()
{
if( m_overflowCounter > MAX_CLIPBOARD_CHANGES ) {
kdDebug() << "App owning the clipboard/selection is lame" << endl;
// update to the latest data - this unfortunately may trigger the problem again
newClipData( true ); // Always the selection.
}
m_overflowCounter = 0;
}
TQStringList KlipperWidget::getClipboardHistoryMenu()
{
TQStringList menu;
for ( const HistoryItem* item = history()->first(); item; item = history()->next() ) {
menu << item->text();
}
return menu;
}
TQString KlipperWidget::getClipboardHistoryItem(int i)
{
for ( const HistoryItem* item = history()->first(); item; item = history()->next() , i-- ) {
if ( i == 0 ) {
return item->text();
}
}
return TQString::null;
}
//
// changing a spinbox in klipper's config-dialog causes the lineedit-contents
// of the spinbox to be selected and hence the clipboard changes. But we don't
// want all those items in klipper's history. See #41917
//
bool KlipperWidget::ignoreClipboardChanges() const
{
TQWidget *focusWidget = qApp->focusWidget();
if ( focusWidget )
{
if ( focusWidget->inherits( "QSpinBox" ) ||
(focusWidget->parentWidget() &&
focusWidget->inherits("QLineEdit") &&
focusWidget->parentWidget()->inherits("QSpinWidget")) )
{
return true;
}
}
return false;
}
// QClipboard uses qt_x_time as the timestamp for selection operations.
// It is updated mainly from user actions, but Klipper polls the clipboard
// without any user action triggering it, so qt_x_time may be old,
// which could possibly lead to QClipboard reporting empty clipboard.
// Therefore, qt_x_time needs to be updated to current X server timestamp.
// Call KApplication::updateUserTime() only from functions that are
// called from outside (DCOP), or from TQTimer timeout !
extern Time qt_x_time;
extern Time qt_x_user_time;
static Time next_x_time;
static Bool update_x_time_predicate( Display*, XEvent* event, XPointer )
{
if( next_x_time != CurrentTime )
return False;
// from qapplication_x11.cpp
switch ( event->type ) {
case ButtonPress:
// fallthrough intended
case ButtonRelease:
next_x_time = event->xbutton.time;
break;
case MotionNotify:
next_x_time = event->xmotion.time;
break;
case KeyPress:
// fallthrough intended
case KeyRelease:
next_x_time = event->xkey.time;
break;
case PropertyNotify:
next_x_time = event->xproperty.time;
break;
case EnterNotify:
case LeaveNotify:
next_x_time = event->xcrossing.time;
break;
case SelectionClear:
next_x_time = event->xselectionclear.time;
break;
default:
break;
}
return False;
}
void KlipperWidget::updateTimestamp()
{ // Qt3.3.0 and 3.3.1 use qt_x_user_time for clipboard operations
Time& time = ( strcmp( qVersion(), "3.3.1" ) == 0
|| strcmp( qVersion(), "3.3.0" ) == 0 )
? qt_x_user_time : qt_x_time;
static TQWidget* w = 0;
if ( !w )
w = new TQWidget;
unsigned char data[ 1 ];
XChangeProperty( qt_xdisplay(), w->winId(), XA_ATOM, XA_ATOM, 8, PropModeAppend, data, 1 );
next_x_time = CurrentTime;
XEvent dummy;
XCheckIfEvent( qt_xdisplay(), &dummy, update_x_time_predicate, NULL );
if( next_x_time == CurrentTime )
{
XSync( qt_xdisplay(), False );
XCheckIfEvent( qt_xdisplay(), &dummy, update_x_time_predicate, NULL );
}
Q_ASSERT( next_x_time != CurrentTime );
time = next_x_time;
XEvent ev; // remove the PropertyNotify event from the events queue
XWindowEvent( qt_xdisplay(), w->winId(), PropertyChangeMask, &ev );
}
static const char * const description =
I18N_NOOP("KDE cut & paste history utility");
void KlipperWidget::createAboutData()
{
about_data = new KAboutData("klipper", I18N_NOOP("Klipper"),
klipper_version, description, KAboutData::License_GPL,
"(c) 1998, Andrew Stanley-Jones\n"
"1998-2002, Carsten Pfeiffer\n"
"2001, Patrick Dubroy");
about_data->addAuthor("Carsten Pfeiffer",
I18N_NOOP("Author"),
"pfeiffer@kde.org");
about_data->addAuthor("Andrew Stanley-Jones",
I18N_NOOP( "Original Author" ),
"asj@cban.com");
about_data->addAuthor("Patrick Dubroy",
I18N_NOOP("Contributor"),
"patrickdu@corel.com");
about_data->addAuthor( "Luboš Luňák",
I18N_NOOP("Bugfixes and optimizations"),
"l.lunak@kde.org");
about_data->addAuthor( "Esben Mose Hansen",
I18N_NOOP("Maintainer"),
"kde@mosehansen.dk");
}
void KlipperWidget::destroyAboutData()
{
delete about_data;
about_data = NULL;
}
KAboutData* KlipperWidget::about_data;
KAboutData* KlipperWidget::aboutData()
{
return about_data;
}
Klipper::Klipper( TQWidget* parent )
: KlipperWidget( parent, kapp->config())
{
}
// this sucks ... KUniqueApplication registers itself as 'klipper'
// for the unique-app detection calls (and it shouldn't use that name IMHO)
// but in Klipper it's not KUniqueApplication class who handles
// the DCOP calls, but an instance of class Klipper, registered as 'klipper'
// this below avoids a warning when KUniqueApplication wouldn't otherwise
// find newInstance() (which doesn't do anything in Klipper anyway)
int Klipper::newInstance()
{
kapp->dcopClient()->setPriorityCall(false); // Allow other dcop calls
return 0;
}
// this is used for quiting klipper process, if klipper is being started as an applet
// (AKA ugly hack)
void Klipper::quitProcess()
{
kapp->dcopClient()->detach();
kapp->quit();
}
static void ensureGlobalSyncOff(KConfig* config) {
config->setGroup("General");
if ( config->readBoolEntry( "SynchronizeClipboardAndSelection" ) ) {
kdDebug() << "Shutting off global synchronization" << endl;
config->writeEntry("SynchronizeClipboardAndSelection",
false,
true,
true );
config->sync();
KClipboardSynchronizer::setSynchronizing( false );
KClipboardSynchronizer::setReverseSynchronizing( false );
KIPC::sendMessageAll( KIPC::ClipboardConfigChanged, 0 );
}
}
#include "toplevel.moc"
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