diff options
Diffstat (limited to 'kdecore/kmanagerselection.cpp')
| -rw-r--r-- | kdecore/kmanagerselection.cpp | 490 |
1 files changed, 0 insertions, 490 deletions
diff --git a/kdecore/kmanagerselection.cpp b/kdecore/kmanagerselection.cpp deleted file mode 100644 index feabf630d..000000000 --- a/kdecore/kmanagerselection.cpp +++ /dev/null @@ -1,490 +0,0 @@ -/**************************************************************************** - - $Id$ - - Copyright (C) 2003 Lubos Lunak <l.lunak@kde.org> - -Permission is hereby granted, free of charge, to any person obtaining a -copy of this software and associated documentation files (the "Software"), -to deal in the Software without restriction, including without limitation -the rights to use, copy, modify, merge, publish, distribute, sublicense, -and/or sell copies of the Software, and to permit persons to whom the -Software is furnished to do so, subject to the following conditions: - -The above copyright notice and this permission notice shall be included in -all copies or substantial portions of the Software. - -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL -THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER -LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING -FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER -DEALINGS IN THE SOFTWARE. - -****************************************************************************/ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#ifdef HAVE_SYS_TYPES_H -#include <sys/types.h> -#endif - -#ifdef HAVE_SYS_TIME_H -#include <sys/time.h> -#endif - -#ifdef HAVE_UNISTD_H -#include <unistd.h> -#endif - -#include <tqobject.h> -#ifdef Q_WS_X11 // FIXME(E) - -#include "kmanagerselection.h" - -#include <kdebug.h> -#include <tqwidget.h> -#include <kapplication.h> -#include <kxerrorhandler.h> -#include <X11/Xatom.h> - -class KSelectionOwnerPrivate - : public QWidget - { - public: - KSelectionOwnerPrivate( KSelectionOwner* owner ); - protected: - virtual bool x11Event( XEvent* ev ); - private: - KSelectionOwner* owner; - }; - -KSelectionOwnerPrivate::KSelectionOwnerPrivate( KSelectionOwner* owner_P ) - : owner( owner_P ) - { - kapp->installX11EventFilter( TQT_TQWIDGET(this) ); - } - -bool KSelectionOwnerPrivate::x11Event( XEvent* ev_P ) - { - return owner->filterEvent( ev_P ); - } - -KSelectionOwner::KSelectionOwner( Atom selection_P, int screen_P, TQObject* parent_P ) - : TQObject( parent_P ), - selection( selection_P ), - screen( screen_P >= 0 ? screen_P : DefaultScreen( qt_xdisplay())), - window( None ), - timestamp( CurrentTime ), - extra1( 0 ), extra2( 0 ), - d( new KSelectionOwnerPrivate( this )) - { - } - -KSelectionOwner::KSelectionOwner( const char* selection_P, int screen_P, TQObject* parent_P ) - : TQObject( parent_P ), - selection( XInternAtom( qt_xdisplay(), selection_P, False )), - screen( screen_P >= 0 ? screen_P : DefaultScreen( qt_xdisplay())), - window( None ), - timestamp( CurrentTime ), - extra1( 0 ), extra2( 0 ), - d( new KSelectionOwnerPrivate( this )) - { - } - -KSelectionOwner::~KSelectionOwner() - { - release(); - delete d; - } - -bool KSelectionOwner::claim( bool force_P, bool force_kill_P ) - { - if( manager_atom == None ) - getAtoms(); - if( timestamp != CurrentTime ) - release(); - Display* const dpy = qt_xdisplay(); - Window prev_owner = XGetSelectionOwner( dpy, selection ); - if( prev_owner != None ) - { - if( !force_P ) - { -// kdDebug() << "Selection already owned, failing" << endl; - return false; - } - XSelectInput( dpy, prev_owner, StructureNotifyMask ); - } - XSetWindowAttributes attrs; - attrs.override_redirect = True; - window = XCreateWindow( dpy, RootWindow( dpy, screen ), 0, 0, 1, 1, - 0, CopyFromParent, InputOnly, CopyFromParent, CWOverrideRedirect, &attrs ); -// kdDebug() << "Using owner window " << window << endl; - Atom tmp = XA_ATOM; - XSelectInput( dpy, window, PropertyChangeMask ); - XChangeProperty( dpy, window, XA_ATOM, XA_ATOM, 32, PropModeReplace, - reinterpret_cast< unsigned char* >( &tmp ), 1 ); - XEvent ev; - XSync( dpy, False ); - XCheckTypedWindowEvent( dpy, window, PropertyNotify, &ev ); // get a timestamp - timestamp = ev.xproperty.time; - XSelectInput( dpy, window, StructureNotifyMask ); // for DestroyNotify - XSetSelectionOwner( dpy, selection, window, timestamp ); - Window new_owner = XGetSelectionOwner( dpy, selection ); - if( new_owner != window ) - { -// kdDebug() << "Failed to claim selection : " << new_owner << endl; - XDestroyWindow( dpy, window ); - timestamp = CurrentTime; - return false; - } - if( prev_owner != None ) - { -// kdDebug() << "Waiting for previous owner to disown" << endl; - for( int cnt = 0; - ; - ++cnt ) - { - if( XCheckTypedWindowEvent( dpy, prev_owner, DestroyNotify, &ev ) == True ) - break; - struct timeval tm = { 0, 50000 }; // 50 ms - select( 0, NULL, NULL, NULL, &tm ); - if( cnt == 19 ) - { - if( force_kill_P ) - { -// kdDebug() << "Killing previous owner" << endl; - XKillClient( dpy, prev_owner ); - } - break; - } - } - } - ev.type = ClientMessage; - ev.xclient.window = RootWindow( dpy, screen ); - ev.xclient.display = dpy; - ev.xclient.message_type = manager_atom; - ev.xclient.format = 32; - ev.xclient.data.l[ 0 ] = timestamp; - ev.xclient.data.l[ 1 ] = selection; - ev.xclient.data.l[ 2 ] = window; - ev.xclient.data.l[ 3 ] = extra1; - ev.xclient.data.l[ 4 ] = extra2; - XSendEvent( dpy, RootWindow( dpy, screen ), False, StructureNotifyMask, &ev ); -// kdDebug() << "Claimed selection" << endl; - return true; - } - -// destroy resource first -void KSelectionOwner::release() - { - if( timestamp == CurrentTime ) - return; - XDestroyWindow( qt_xdisplay(), window ); // also makes the selection not owned -// kdDebug() << "Releasing selection" << endl; - timestamp = CurrentTime; - } - -Window KSelectionOwner::ownerWindow() const - { - if( timestamp == CurrentTime ) - return None; - return window; - } - -void KSelectionOwner::setData( long extra1_P, long extra2_P ) - { - extra1 = extra1_P; - extra2 = extra2_P; - } - -bool KSelectionOwner::filterEvent( XEvent* ev_P ) - { - if( timestamp != CurrentTime && ev_P->xany.window == window ) - { - if( handleMessage( ev_P )) - return true; - } - switch( ev_P->type ) - { - case SelectionClear: - { - if( timestamp == CurrentTime || ev_P->xselectionclear.selection != selection ) - return false; - timestamp = CurrentTime; -// kdDebug() << "Lost selection" << endl; - emit lostOwnership(); - XSelectInput( qt_xdisplay(), window, 0 ); - XDestroyWindow( qt_xdisplay(), window ); - return false; - } - case DestroyNotify: - { - if( timestamp == CurrentTime || ev_P->xdestroywindow.window != window ) - return false; - timestamp = CurrentTime; -// kdDebug() << "Lost selection (destroyed)" << endl; - emit lostOwnership(); - return false; - } - case SelectionNotify: - { - if( timestamp == CurrentTime || ev_P->xselection.selection != selection ) - return false; - // ignore? - return false; - } - case SelectionRequest: - filter_selection_request( ev_P->xselectionrequest ); - return false; - } - return false; - } - -bool KSelectionOwner::handleMessage( XEvent* ) - { - return false; - } - -void KSelectionOwner::filter_selection_request( XSelectionRequestEvent& ev_P ) - { - if( timestamp == CurrentTime || ev_P.selection != selection ) - return; - if( ev_P.time != CurrentTime - && ev_P.time - timestamp > 1U << 31 ) - return; // too old or too new request -// kdDebug() << "Got selection request" << endl; - bool handled = false; - if( ev_P.target == xa_multiple ) - { - if( ev_P.property != None ) - { - const int MAX_ATOMS = 100; // no need to handle more? - int format; - Atom type; - unsigned long items; - unsigned long after; - unsigned char* data; - if( XGetWindowProperty( qt_xdisplay(), ev_P.requestor, ev_P.property, 0, - MAX_ATOMS, False, AnyPropertyType, &type, &format, &items, &after, - &data ) == Success && format == 32 && items % 2 == 0 ) - { - bool handled_array[ MAX_ATOMS ]; - Atom* atoms = reinterpret_cast< Atom* >( data ); - for( unsigned int i = 0; - i < items / 2; - ++i ) - handled_array[ i ] = handle_selection( - atoms[ i * 2 ], atoms[ i * 2 + 1 ], ev_P.requestor ); - bool all_handled = true; - for( unsigned int i = 0; - i < items / 2; - ++i ) - if( !handled_array[ i ] ) - { - all_handled = false; - atoms[ i * 2 + 1 ] = None; - } - if( !all_handled ) - XChangeProperty( qt_xdisplay(), ev_P.requestor, ev_P.property, XA_ATOM, - 32, PropModeReplace, reinterpret_cast< unsigned char* >( atoms ), items ); - handled = true; - XFree( data ); - } - } - } - else - { - if( ev_P.property == None ) // obsolete client - ev_P.property = ev_P.target; - handled = handle_selection( ev_P.target, ev_P.property, ev_P.requestor ); - } - XEvent ev; - ev.xselection.type = SelectionNotify; - ev.xselection.display = qt_xdisplay(); - ev.xselection.requestor = ev_P.requestor; - ev.xselection.target = ev_P.target; - ev.xselection.property = handled ? ev_P.property : None; - XSendEvent( qt_xdisplay(), ev_P.requestor, False, 0, &ev ); - } - -bool KSelectionOwner::handle_selection( Atom target_P, Atom property_P, Window requestor_P ) - { - if( target_P == xa_timestamp ) - { -// kdDebug() << "Handling timestamp request" << endl; - XChangeProperty( qt_xdisplay(), requestor_P, property_P, XA_INTEGER, 32, - PropModeReplace, reinterpret_cast< unsigned char* >( ×tamp ), 1 ); - } - else if( target_P == xa_targets ) - replyTargets( property_P, requestor_P ); - else if( genericReply( target_P, property_P, requestor_P )) - ; // handled - else - return false; // unknown - return true; - } - -void KSelectionOwner::replyTargets( Atom property_P, Window requestor_P ) - { - Atom atoms[ 3 ] = { xa_multiple, xa_timestamp, xa_targets }; -// kdDebug() << "Handling targets request" << endl; - XChangeProperty( qt_xdisplay(), requestor_P, property_P, XA_ATOM, 32, PropModeReplace, - reinterpret_cast< unsigned char* >( atoms ), 3 ); - } - -bool KSelectionOwner::genericReply( Atom, Atom, Window ) - { - return false; - } - -void KSelectionOwner::getAtoms() - { - if( manager_atom == None ) - { - Atom atoms[ 4 ]; - const char* const names[] = - { "MANAGER", "MULTIPLE", "TARGETS", "TIMESTAMP" }; - XInternAtoms( qt_xdisplay(), const_cast< char** >( names ), 4, False, atoms ); - manager_atom = atoms[ 0 ]; - xa_multiple = atoms[ 1]; - xa_targets = atoms[ 2 ]; - xa_timestamp = atoms[ 3 ]; - } - } - -Atom KSelectionOwner::manager_atom = None; -Atom KSelectionOwner::xa_multiple = None; -Atom KSelectionOwner::xa_targets = None; -Atom KSelectionOwner::xa_timestamp = None; - -//******************************************* -// KSelectionWatcher -//******************************************* - - -class KSelectionWatcherPrivate - : public QWidget - { - public: - KSelectionWatcherPrivate( KSelectionWatcher* watcher ); - protected: - virtual bool x11Event( XEvent* ev ); - private: - KSelectionWatcher* watcher; - }; - -KSelectionWatcherPrivate::KSelectionWatcherPrivate( KSelectionWatcher* watcher_P ) - : watcher( watcher_P ) - { - kapp->installX11EventFilter( TQT_TQWIDGET(this) ); - } - -bool KSelectionWatcherPrivate::x11Event( XEvent* ev_P ) - { - watcher->filterEvent( ev_P ); - return false; - } - - -KSelectionWatcher::KSelectionWatcher( Atom selection_P, int screen_P, TQObject* parent_P ) - : TQObject( parent_P ), - selection( selection_P ), - screen( screen_P >= 0 ? screen_P : DefaultScreen( qt_xdisplay())), - selection_owner( None ), - d( new KSelectionWatcherPrivate( this )) - { - init(); - } - -KSelectionWatcher::KSelectionWatcher( const char* selection_P, int screen_P, TQObject* parent_P ) - : TQObject( parent_P ), - selection( XInternAtom( qt_xdisplay(), selection_P, False )), - screen( screen_P >= 0 ? screen_P : DefaultScreen( qt_xdisplay())), - selection_owner( None ), - d( new KSelectionWatcherPrivate( this )) - { - init(); - } - -KSelectionWatcher::~KSelectionWatcher() - { - delete d; - } - -void KSelectionWatcher::init() - { - if( manager_atom == None ) - { - Display* const dpy = qt_xdisplay(); - manager_atom = XInternAtom( dpy, "MANAGER", False ); - XWindowAttributes attrs; - XGetWindowAttributes( dpy, RootWindow( dpy, screen ), &attrs ); - long event_mask = attrs.your_event_mask; - // StructureNotifyMask on the root window is needed - XSelectInput( dpy, RootWindow( dpy, screen ), event_mask | StructureNotifyMask ); - } - } - -Window KSelectionWatcher::owner() - { - Display* const dpy = qt_xdisplay(); - KXErrorHandler handler; - Window current_owner = XGetSelectionOwner( dpy, selection ); - if( current_owner == None ) - return None; - if( current_owner == selection_owner ) - return selection_owner; - XSelectInput( dpy, current_owner, StructureNotifyMask ); - if( !handler.error( true ) && current_owner == XGetSelectionOwner( dpy, selection )) - { -// kdDebug() << "isOwner: " << current_owner << endl; - selection_owner = current_owner; - emit newOwner( selection_owner ); - } - else - selection_owner = None; - return selection_owner; - } - -// void return value in order to allow more watchers in one process -void KSelectionWatcher::filterEvent( XEvent* ev_P ) - { - if( ev_P->type == ClientMessage ) - { -// kdDebug() << "got ClientMessage" << endl; - if( ev_P->xclient.message_type != manager_atom - || ev_P->xclient.data.l[ 1 ] != static_cast< long >( selection )) - return; -// kdDebug() << "handling message" << endl; - if( static_cast< long >( owner()) == ev_P->xclient.data.l[ 2 ] ) - { - // owner() emits newOwner() if needed, no need to do it twice - } - return; - } - if( ev_P->type == DestroyNotify ) - { - if( selection_owner == None || ev_P->xdestroywindow.window != selection_owner ) - return; - selection_owner = None; // in case the exactly same ID gets reused as the owner - if( owner() == None ) - emit lostOwner(); // it must be safe to delete 'this' in a slot - return; - } - return; - } - -Atom KSelectionWatcher::manager_atom = None; - -void KSelectionOwner::virtual_hook( int, void* ) -{ /*BASE::virtual_hook( id, data );*/ } - -void KSelectionWatcher::virtual_hook( int, void* ) -{ /*BASE::virtual_hook( id, data );*/ } - -#include "kmanagerselection.moc" -#endif |