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Diffstat (limited to 'kwin/utils.cpp')
| -rw-r--r-- | kwin/utils.cpp | 386 |
1 files changed, 386 insertions, 0 deletions
diff --git a/kwin/utils.cpp b/kwin/utils.cpp new file mode 100644 index 000000000..b0f77df37 --- /dev/null +++ b/kwin/utils.cpp @@ -0,0 +1,386 @@ +/***************************************************************** + KWin - the KDE window manager + This file is part of the KDE project. + +Copyright (C) 1999, 2000 Matthias Ettrich <ettrich@kde.org> +Copyright (C) 2003 Lubos Lunak <l.lunak@kde.org> + +You can Freely distribute this program under the GNU General Public +License. See the file "COPYING" for the exact licensing terms. +******************************************************************/ + +/* + + This file is for (very) small utility functions/classes. + +*/ + +#include "utils.h" + +#include <unistd.h> + +#ifndef KCMRULES + +#include <kxerrorhandler.h> +#include <assert.h> +#include <kdebug.h> + +#include <X11/Xlib.h> +#include <X11/extensions/shape.h> +#include <X11/Xatom.h> + +#include "atoms.h" +#include "notifications.h" + +extern Time qt_x_time; + +#endif + +namespace KWinInternal +{ + +#ifndef KCMRULES + +// used to store the return values of +// XShapeQueryExtension. +// Necessary since shaped window are an extension to X +int Shape::kwin_shape_version = 0; +int Shape::kwin_shape_event = 0; + +// does the window w need a shape combine mask around it? +bool Shape::hasShape( WId w) + { + int xws, yws, xbs, ybs; + unsigned int wws, hws, wbs, hbs; + int boundingShaped = 0, clipShaped = 0; + if (!available()) + return FALSE; + XShapeQueryExtents(qt_xdisplay(), w, + &boundingShaped, &xws, &yws, &wws, &hws, + &clipShaped, &xbs, &ybs, &wbs, &hbs); + return boundingShaped != 0; + } + +int Shape::shapeEvent() + { + return kwin_shape_event; + } + +void Shape::init() + { + kwin_shape_version = 0; + int dummy; + if( !XShapeQueryExtension(qt_xdisplay(), &kwin_shape_event, &dummy)) + return; + int major, minor; + if( !XShapeQueryVersion( qt_xdisplay(), &major, &minor )) + return; + kwin_shape_version = major * 0x10 + minor; + } + +void Motif::readFlags( WId w, bool& noborder, bool& resize, bool& move, + bool& minimize, bool& maximize, bool& close ) + { + Atom type; + int format; + unsigned long length, after; + unsigned char* data; + MwmHints* hints = 0; + if ( XGetWindowProperty( qt_xdisplay(), w, atoms->motif_wm_hints, 0, 5, + FALSE, atoms->motif_wm_hints, &type, &format, + &length, &after, &data ) == Success ) + { + if ( data ) + hints = (MwmHints*) data; + } + noborder = false; + resize = true; + move = true; + minimize = true; + maximize = true; + close = true; + if ( hints ) + { + // To quote from Metacity 'We support those MWM hints deemed non-stupid' + if ( hints->flags & MWM_HINTS_FUNCTIONS ) + { + // if MWM_FUNC_ALL is set, other flags say what to turn _off_ + bool set_value = (( hints->functions & MWM_FUNC_ALL ) == 0 ); + resize = move = minimize = maximize = close = !set_value; + if( hints->functions & MWM_FUNC_RESIZE ) + resize = set_value; + if( hints->functions & MWM_FUNC_MOVE ) + move = set_value; + if( hints->functions & MWM_FUNC_MINIMIZE ) + minimize = set_value; + if( hints->functions & MWM_FUNC_MAXIMIZE ) + maximize = set_value; + if( hints->functions & MWM_FUNC_CLOSE ) + close = set_value; + } + if ( hints->flags & MWM_HINTS_DECORATIONS ) + { + if ( hints->decorations == 0 ) + noborder = true; + } + XFree( data ); + } + } + +//************************************ +// KWinSelectionOwner +//************************************ + +KWinSelectionOwner::KWinSelectionOwner( int screen_P ) + : KSelectionOwner( make_selection_atom( screen_P ), screen_P ) + { + } + +Atom KWinSelectionOwner::make_selection_atom( int screen_P ) + { + if( screen_P < 0 ) + screen_P = DefaultScreen( qt_xdisplay()); + char tmp[ 30 ]; + sprintf( tmp, "WM_S%d", screen_P ); + return XInternAtom( qt_xdisplay(), tmp, False ); + } + +void KWinSelectionOwner::getAtoms() + { + KSelectionOwner::getAtoms(); + if( xa_version == None ) + { + Atom atoms[ 1 ]; + const char* const names[] = + { "VERSION" }; + XInternAtoms( qt_xdisplay(), const_cast< char** >( names ), 1, False, atoms ); + xa_version = atoms[ 0 ]; + } + } + +void KWinSelectionOwner::replyTargets( Atom property_P, Window requestor_P ) + { + KSelectionOwner::replyTargets( property_P, requestor_P ); + Atom atoms[ 1 ] = { xa_version }; + // PropModeAppend ! + XChangeProperty( qt_xdisplay(), requestor_P, property_P, XA_ATOM, 32, PropModeAppend, + reinterpret_cast< unsigned char* >( atoms ), 1 ); + } + +bool KWinSelectionOwner::genericReply( Atom target_P, Atom property_P, Window requestor_P ) + { + if( target_P == xa_version ) + { + long version[] = { 2, 0 }; + XChangeProperty( qt_xdisplay(), requestor_P, property_P, XA_INTEGER, 32, + PropModeReplace, reinterpret_cast< unsigned char* >( &version ), 2 ); + } + else + return KSelectionOwner::genericReply( target_P, property_P, requestor_P ); + return true; + } + +Atom KWinSelectionOwner::xa_version = None; + + +QCString getStringProperty(WId w, Atom prop, char separator) + { + Atom type; + int format, status; + unsigned long nitems = 0; + unsigned long extra = 0; + unsigned char *data = 0; + QCString result = ""; + KXErrorHandler handler; // ignore errors + status = XGetWindowProperty( qt_xdisplay(), w, prop, 0, 10000, + FALSE, XA_STRING, &type, &format, + &nitems, &extra, &data ); + if ( status == Success) + { + if (data && separator) + { + for (int i=0; i<(int)nitems; i++) + if (!data[i] && i+1<(int)nitems) + data[i] = separator; + } + if (data) + result = (const char*) data; + XFree(data); + } + return result; + } + +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; +} + +/* + Updates qt_x_time. This used to simply fetch current timestamp from the server, + but that can cause qt_x_time to be newer than timestamp of events that are + still in our events queue, thus e.g. making XSetInputFocus() caused by such + event to be ignored. Therefore events queue is searched for first + event with timestamp, and extra PropertyNotify is generated in order to make + sure such event is found. +*/ +void updateXTime() + { + static QWidget* w = 0; + if ( !w ) + w = new QWidget; + long data = 1; + XChangeProperty(qt_xdisplay(), w->winId(), atoms->kwin_running, atoms->kwin_running, 32, + PropModeAppend, (unsigned char*) &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 ); + } + assert( next_x_time != CurrentTime ); + qt_x_time = next_x_time; + XEvent ev; // remove the PropertyNotify event from the events queue + XWindowEvent( qt_xdisplay(), w->winId(), PropertyChangeMask, &ev ); + } + +static int server_grab_count = 0; + +void grabXServer() + { + if( ++server_grab_count == 1 ) + XGrabServer( qt_xdisplay()); + } + +void ungrabXServer() + { + assert( server_grab_count > 0 ); + if( --server_grab_count == 0 ) + { + XUngrabServer( qt_xdisplay()); + XFlush( qt_xdisplay()); + Notify::sendPendingEvents(); + } + } + +bool grabbedXServer() + { + return server_grab_count > 0; + } + +#endif + +bool isLocalMachine( const QCString& host ) + { +#ifdef HOST_NAME_MAX + char hostnamebuf[HOST_NAME_MAX]; +#else + char hostnamebuf[256]; +#endif + if (gethostname (hostnamebuf, sizeof hostnamebuf) >= 0) + { + hostnamebuf[sizeof(hostnamebuf)-1] = 0; + if (host == hostnamebuf) + return true; + if( char *dot = strchr(hostnamebuf, '.')) + { + *dot = '\0'; + if( host == hostnamebuf ) + return true; + } + } + return false; + } + +#ifndef KCMRULES +ShortcutDialog::ShortcutDialog( const KShortcut& cut ) + : KShortcutDialog( cut, false /*TODO???*/ ) + { + // make it a popup, so that it has the grab + XSetWindowAttributes attrs; + attrs.override_redirect = True; + XChangeWindowAttributes( qt_xdisplay(), winId(), CWOverrideRedirect, &attrs ); + setWFlags( WType_Popup ); + } + +void ShortcutDialog::accept() + { + for( int i = 0; + ; + ++i ) + { + KKeySequence seq = shortcut().seq( i ); + if( seq.isNull()) + break; + if( seq.key( 0 ) == Key_Escape ) + { + reject(); + return; + } + if( seq.key( 0 ) == Key_Space ) + { // clear + setShortcut( KShortcut()); + KShortcutDialog::accept(); + return; + } + if( seq.key( 0 ).modFlags() == 0 ) + { // no shortcuts without modifiers + KShortcut cut = shortcut(); + cut.setSeq( i, KKeySequence()); + setShortcut( cut ); + return; + } + } + KShortcutDialog::accept(); + } + +// Workaround for Qt bug causing #119142 - wheel event causes only calling +// of hide() but not close(), so dialog closing is not performed. +// Possible recursive calling close->hide->close should be fine, as close() +// has checks against that. +void ShortcutDialog::hide() + { + close(); + return KShortcutDialog::hide(); + } + +#endif + + +} // namespace + +#ifndef KCMRULES +#include "utils.moc" +#endif |