From ce4a32fe52ef09d8f5ff1dd22c001110902b60a2 Mon Sep 17 00:00:00 2001 From: toma Date: Wed, 25 Nov 2009 17:56:58 +0000 Subject: Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features. BUG:215923 git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdelibs@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da --- kdecore/kxmessages.cpp | 214 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 214 insertions(+) create mode 100644 kdecore/kxmessages.cpp (limited to 'kdecore/kxmessages.cpp') diff --git a/kdecore/kxmessages.cpp b/kdecore/kxmessages.cpp new file mode 100644 index 000000000..b730c73a7 --- /dev/null +++ b/kdecore/kxmessages.cpp @@ -0,0 +1,214 @@ +/**************************************************************************** + + $Id$ + + Copyright (C) 2001-2003 Lubos Lunak + +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. + +****************************************************************************/ + +#include "kxmessages.h" + +#include + +#ifdef Q_WS_X11 // FIXME(E): Figure out what parts we can/should emulate in QT/E + +#include +#include + +// for broadcasting +const long BROADCAST_MASK = PropertyChangeMask; +// CHECKME + +KXMessages::KXMessages( const char* accept_broadcast_P, QWidget* parent_P ) + : QWidget( parent_P ) + { + if( accept_broadcast_P != NULL ) + { + ( void ) kapp->desktop(); //trigger desktop widget creation to select root window events + kapp->installX11EventFilter( this ); // i.e. PropertyChangeMask + accept_atom1 = XInternAtom( qt_xdisplay(), accept_broadcast_P, false ); + accept_atom2 = accept_atom1; + } + else + { + accept_atom1 = accept_atom2 = None; + } + handle = new QWidget( this ); + } + +KXMessages::KXMessages( const char* accept_broadcast_P, QWidget* parent_P, bool obsolete_P ) + : QWidget( parent_P ) + { + if( accept_broadcast_P != NULL ) + { + ( void ) kapp->desktop(); //trigger desktop widget creation to select root window events + kapp->installX11EventFilter( this ); // i.e. PropertyChangeMask + accept_atom2 = XInternAtom( qt_xdisplay(), accept_broadcast_P, false ); + accept_atom1 = obsolete_P ? accept_atom2 + : XInternAtom( qt_xdisplay(), QCString( accept_broadcast_P ) + "_BEGIN", false ); + } + else + { + accept_atom1 = accept_atom2 = None; + } + handle = new QWidget( this ); + } + +KXMessages::~KXMessages() + { +// delete d; no private data yet + } + + +void KXMessages::broadcastMessage( const char* msg_type_P, const QString& message_P ) + { + broadcastMessage( msg_type_P, message_P, -1, true ); + } + +void KXMessages::broadcastMessage( const char* msg_type_P, const QString& message_P, + int screen_P, bool obsolete_P ) + { + Atom a2 = XInternAtom( qt_xdisplay(), msg_type_P, false ); + Atom a1 = obsolete_P ? a2 : XInternAtom( qt_xdisplay(), QCString( msg_type_P ) + "_BEGIN", false ); + Window root = screen_P == -1 ? qt_xrootwin() : qt_xrootwin( screen_P ); + send_message_internal( root, message_P, BROADCAST_MASK, qt_xdisplay(), + a1, a2, handle->winId()); + } + +void KXMessages::sendMessage( WId w_P, const char* msg_type_P, const QString& message_P ) + { + sendMessage( w_P, msg_type_P, message_P, true ); + } + +void KXMessages::sendMessage( WId w_P, const char* msg_type_P, const QString& message_P, + bool obsolete_P ) + { + Atom a2 = XInternAtom( qt_xdisplay(), msg_type_P, false ); + Atom a1 = obsolete_P ? a2 : XInternAtom( qt_xdisplay(), QCString( msg_type_P ) + "_BEGIN", false ); + send_message_internal( w_P, message_P, 0, qt_xdisplay(), a1, a2, handle->winId()); + } + +bool KXMessages::broadcastMessageX( Display* disp, const char* msg_type_P, + const QString& message_P ) + { + return broadcastMessageX( disp, msg_type_P, message_P, -1, true ); + } + +bool KXMessages::broadcastMessageX( Display* disp, const char* msg_type_P, + const QString& message_P, int screen_P, bool obsolete_P ) + { + if( disp == NULL ) + return false; + Atom a2 = XInternAtom( disp, msg_type_P, false ); + Atom a1 = obsolete_P ? a2 : XInternAtom( disp, QCString( msg_type_P ) + "_BEGIN", false ); + Window root = screen_P == -1 ? DefaultRootWindow( disp ) : RootWindow( disp, screen_P ); + Window win = XCreateSimpleWindow( disp, root, 0, 0, 1, 1, + 0, BlackPixel( disp, screen_P == -1 ? DefaultScreen( disp ) : screen_P ), + BlackPixel( disp, screen_P == -1 ? DefaultScreen( disp ) : screen_P )); + send_message_internal( root, message_P, BROADCAST_MASK, disp, + a1, a2, win ); + XDestroyWindow( disp, win ); + return true; + } + +bool KXMessages::sendMessageX( Display* disp, WId w_P, const char* msg_type_P, + const QString& message_P ) + { + return sendMessageX( disp, w_P, msg_type_P, message_P, true ); + } + +bool KXMessages::sendMessageX( Display* disp, WId w_P, const char* msg_type_P, + const QString& message_P, bool obsolete_P ) + { + if( disp == NULL ) + return false; + Atom a2 = XInternAtom( disp, msg_type_P, false ); + Atom a1 = obsolete_P ? a2 : XInternAtom( disp, QCString( msg_type_P ) + "_BEGIN", false ); + Window win = XCreateSimpleWindow( disp, DefaultRootWindow( disp ), 0, 0, 1, 1, + 0, BlackPixelOfScreen( DefaultScreenOfDisplay( disp )), + BlackPixelOfScreen( DefaultScreenOfDisplay( disp ))); + send_message_internal( w_P, message_P, 0, disp, a1, a2, win ); + XDestroyWindow( disp, win ); + return true; + } + +void KXMessages::send_message_internal( WId w_P, const QString& msg_P, long mask_P, + Display* disp, Atom atom1_P, Atom atom2_P, Window handle_P ) + { + unsigned int pos = 0; + QCString msg = msg_P.utf8(); + unsigned int len = strlen( msg ); + XEvent e; + e.xclient.type = ClientMessage; + e.xclient.message_type = atom1_P; // leading message + e.xclient.display = disp; + e.xclient.window = handle_P; + e.xclient.format = 8; + do + { + unsigned int i; + for( i = 0; + i < 20 && i + pos <= len; + ++i ) + e.xclient.data.b[ i ] = msg[ i + pos ]; + XSendEvent( disp, w_P, false, mask_P, &e ); + e.xclient.message_type = atom2_P; // following messages + pos += i; + } while( pos <= len ); + XFlush( disp ); + } + +bool KXMessages::x11Event( XEvent* ev_P ) + { + if( ev_P->type != ClientMessage || ev_P->xclient.format != 8 ) + return QWidget::x11Event( ev_P ); + if( ev_P->xclient.message_type != accept_atom1 && ev_P->xclient.message_type != accept_atom2 ) + return QWidget::x11Event( ev_P ); + char buf[ 21 ]; // can't be longer + int i; + for( i = 0; + i < 20 && ev_P->xclient.data.b[ i ] != '\0'; + ++i ) + buf[ i ] = ev_P->xclient.data.b[ i ]; + buf[ i ] = '\0'; + if( incoming_messages.contains( ev_P->xclient.window )) + { + if( ev_P->xclient.message_type == accept_atom1 && accept_atom1 != accept_atom2 ) + // two different messages on the same window at the same time shouldn't happen anyway + incoming_messages[ ev_P->xclient.window ] = QCString(); + incoming_messages[ ev_P->xclient.window ] += buf; + } + else + { + if( ev_P->xclient.message_type == accept_atom2 && accept_atom1 != accept_atom2 ) + return false; // middle of message, but we don't have the beginning + incoming_messages[ ev_P->xclient.window ] = buf; + } + if( i < 20 ) // last message fragment + { + emit gotMessage( QString::fromUtf8( incoming_messages[ ev_P->xclient.window ] )); + incoming_messages.remove( ev_P->xclient.window ); + } + return false; // lets other KXMessages instances get the event too + } + +#include "kxmessages.moc" +#endif -- cgit v1.2.1