508 lines
16 KiB
C
508 lines
16 KiB
C
/*
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SDL - Simple DirectMedia Layer
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Copyright (C) 1997-2010 Sam Lantinga
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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Sam Lantinga
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slouken@libsdl.org
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*/
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#include "SDL_config.h"
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#include <sys/types.h>
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#include <sys/time.h>
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#include <signal.h>
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#include <unistd.h>
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#include <limits.h> /* For INT_MAX */
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#include "SDL_x11video.h"
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#include "../../events/SDL_events_c.h"
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#include "../../events/SDL_mouse_c.h"
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#include "SDL_timer.h"
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#include "SDL_syswm.h"
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/*#define DEBUG_XEVENTS*/
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static void
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X11_DispatchEvent(_THIS)
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{
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SDL_VideoData *videodata = (SDL_VideoData *) _this->driverdata;
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Display *display = videodata->display;
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SDL_WindowData *data;
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XEvent xevent;
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int i;
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SDL_zero(xevent); /* valgrind fix. --ryan. */
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XNextEvent(display, &xevent);
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/* filter events catchs XIM events and sends them to the correct
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handler */
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if (XFilterEvent(&xevent, None) == True) {
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#if 0
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printf("Filtered event type = %d display = %d window = %d\n",
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xevent.type, xevent.xany.display, xevent.xany.window);
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#endif
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return;
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}
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/* Send a SDL_SYSWMEVENT if the application wants them */
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if (SDL_GetEventState(SDL_SYSWMEVENT) == SDL_ENABLE) {
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SDL_SysWMmsg wmmsg;
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SDL_VERSION(&wmmsg.version);
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wmmsg.subsystem = SDL_SYSWM_X11;
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wmmsg.event.xevent = xevent;
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SDL_SendSysWMEvent(&wmmsg);
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}
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data = NULL;
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if (videodata && videodata->windowlist) {
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for (i = 0; i < videodata->numwindows; ++i) {
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if ((videodata->windowlist[i] != NULL) &&
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(videodata->windowlist[i]->xwindow == xevent.xany.window)) {
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data = videodata->windowlist[i];
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break;
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}
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}
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}
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if (!data) {
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return;
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}
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#if 0
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printf("type = %d display = %d window = %d\n",
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xevent.type, xevent.xany.display, xevent.xany.window);
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#endif
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switch (xevent.type) {
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/* Gaining mouse coverage? */
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case EnterNotify:{
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#ifdef DEBUG_XEVENTS
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printf("EnterNotify! (%d,%d,%d)\n",
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xevent.xcrossing.x,
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xevent.xcrossing.y,
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xevent.xcrossing.mode);
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if (xevent.xcrossing.mode == NotifyGrab)
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printf("Mode: NotifyGrab\n");
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if (xevent.xcrossing.mode == NotifyUngrab)
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printf("Mode: NotifyUngrab\n");
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#endif
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SDL_SetMouseFocus(data->window);
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}
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break;
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/* Losing mouse coverage? */
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case LeaveNotify:{
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#ifdef DEBUG_XEVENTS
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printf("LeaveNotify! (%d,%d,%d)\n",
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xevent.xcrossing.x,
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xevent.xcrossing.y,
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xevent.xcrossing.mode);
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if (xevent.xcrossing.mode == NotifyGrab)
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printf("Mode: NotifyGrab\n");
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if (xevent.xcrossing.mode == NotifyUngrab)
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printf("Mode: NotifyUngrab\n");
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#endif
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if (xevent.xcrossing.detail != NotifyInferior) {
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SDL_SetMouseFocus(NULL);
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}
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}
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break;
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/* Gaining input focus? */
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case FocusIn:{
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#ifdef DEBUG_XEVENTS
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printf("FocusIn!\n");
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#endif
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SDL_SetKeyboardFocus(data->window);
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#ifdef X_HAVE_UTF8_STRING
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if (data->ic) {
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XSetICFocus(data->ic);
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}
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#endif
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}
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break;
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/* Losing input focus? */
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case FocusOut:{
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#ifdef DEBUG_XEVENTS
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printf("FocusOut!\n");
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#endif
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SDL_SetKeyboardFocus(NULL);
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#ifdef X_HAVE_UTF8_STRING
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if (data->ic) {
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XUnsetICFocus(data->ic);
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}
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#endif
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}
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break;
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/* Generated upon EnterWindow and FocusIn */
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case KeymapNotify:{
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#ifdef DEBUG_XEVENTS
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printf("KeymapNotify!\n");
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#endif
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/* FIXME:
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X11_SetKeyboardState(SDL_Display, xevent.xkeymap.key_vector);
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*/
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}
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break;
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/* Has the keyboard layout changed? */
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case MappingNotify:{
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#ifdef DEBUG_XEVENTS
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printf("MappingNotify!\n");
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#endif
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X11_UpdateKeymap(_this);
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}
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break;
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/* Key press? */
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case KeyPress:{
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KeyCode keycode = xevent.xkey.keycode;
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KeySym keysym = NoSymbol;
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char text[SDL_TEXTINPUTEVENT_TEXT_SIZE];
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Status status = 0;
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#ifdef DEBUG_XEVENTS
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printf("KeyPress (X11 keycode = 0x%X)\n", xevent.xkey.keycode);
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#endif
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SDL_SendKeyboardKey(SDL_PRESSED, videodata->key_layout[keycode]);
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#if 0
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if (videodata->key_layout[keycode] == SDLK_UNKNOWN) {
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int min_keycode, max_keycode;
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XDisplayKeycodes(display, &min_keycode, &max_keycode);
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keysym = XKeycodeToKeysym(display, keycode, 0);
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fprintf(stderr,
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"The key you just pressed is not recognized by SDL. To help get this fixed, please report this to the SDL mailing list <sdl@libsdl.org> X11 KeyCode %d (%d), X11 KeySym 0x%X (%s).\n",
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keycode, keycode - min_keycode, keysym,
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XKeysymToString(keysym));
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}
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#endif
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/* */
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SDL_zero(text);
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#ifdef X_HAVE_UTF8_STRING
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if (data->ic) {
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Xutf8LookupString(data->ic, &xevent.xkey, text, sizeof(text),
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&keysym, &status);
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}
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#else
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XLookupString(&xevent.xkey, text, sizeof(text), &keysym, NULL);
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#endif
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if (*text) {
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SDL_SendKeyboardText(text);
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}
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}
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break;
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/* Key release? */
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case KeyRelease:{
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KeyCode keycode = xevent.xkey.keycode;
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#ifdef DEBUG_XEVENTS
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printf("KeyRelease (X11 keycode = 0x%X)\n", xevent.xkey.keycode);
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#endif
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SDL_SendKeyboardKey(SDL_RELEASED, videodata->key_layout[keycode]);
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}
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break;
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/* Have we been iconified? */
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case UnmapNotify:{
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#ifdef DEBUG_XEVENTS
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printf("UnmapNotify!\n");
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#endif
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SDL_SendWindowEvent(data->window, SDL_WINDOWEVENT_HIDDEN, 0, 0);
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SDL_SendWindowEvent(data->window, SDL_WINDOWEVENT_MINIMIZED, 0, 0);
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}
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break;
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/* Have we been restored? */
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case MapNotify:{
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#ifdef DEBUG_XEVENTS
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printf("MapNotify!\n");
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#endif
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SDL_SendWindowEvent(data->window, SDL_WINDOWEVENT_SHOWN, 0, 0);
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SDL_SendWindowEvent(data->window, SDL_WINDOWEVENT_RESTORED, 0, 0);
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}
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break;
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/* Have we been resized or moved? */
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case ConfigureNotify:{
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#ifdef DEBUG_XEVENTS
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printf("ConfigureNotify! (resize: %dx%d)\n",
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xevent.xconfigure.width, xevent.xconfigure.height);
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#endif
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SDL_SendWindowEvent(data->window, SDL_WINDOWEVENT_MOVED,
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xevent.xconfigure.x, xevent.xconfigure.y);
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SDL_SendWindowEvent(data->window, SDL_WINDOWEVENT_RESIZED,
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xevent.xconfigure.width,
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xevent.xconfigure.height);
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}
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break;
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/* Have we been requested to quit (or another client message?) */
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case ClientMessage:{
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if ((xevent.xclient.format == 32) &&
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(xevent.xclient.data.l[0] == videodata->WM_DELETE_WINDOW)) {
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SDL_SendWindowEvent(data->window, SDL_WINDOWEVENT_CLOSE, 0, 0);
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}
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}
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break;
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/* Do we need to refresh ourselves? */
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case Expose:{
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#ifdef DEBUG_XEVENTS
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printf("Expose (count = %d)\n", xevent.xexpose.count);
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#endif
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SDL_SendWindowEvent(data->window, SDL_WINDOWEVENT_EXPOSED, 0, 0);
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}
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break;
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case MotionNotify:{
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#ifdef DEBUG_MOTION
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printf("X11 motion: %d,%d\n", xevent.xmotion.x, xevent.xmotion.y);
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#endif
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SDL_SendMouseMotion(data->window, 0, xevent.xmotion.x, xevent.xmotion.y);
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}
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break;
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case ButtonPress:{
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SDL_SendMouseButton(data->window, SDL_PRESSED, xevent.xbutton.button);
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}
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break;
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case ButtonRelease:{
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SDL_SendMouseButton(data->window, SDL_RELEASED, xevent.xbutton.button);
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}
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break;
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case PropertyNotify:{
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#ifdef DEBUG_XEVENTS
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char *name = XGetAtomName(display, xevent.xproperty.atom);
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printf("PropertyNotify (atom = %s)\n", name ? name : "NULL");
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if (name) {
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XFree(name);
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}
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#endif
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if (xevent.xproperty.atom == videodata->_NET_WM_STATE) {
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unsigned char *propdata;
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int status, real_format;
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Atom real_type;
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unsigned long items_read, items_left, i;
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#ifdef DEBUG_XEVENTS
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printf("_NET_WM_STATE: {");
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#endif
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status = XGetWindowProperty(display, data->xwindow, videodata->_NET_WM_STATE, 0L, 8192L, False, XA_ATOM, &real_type, &real_format, &items_read, &items_left, &propdata);
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if (status == Success) {
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Atom *atoms = (Atom *)propdata;
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for (i = 0; i < items_read; i++) {
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if (atoms[i] == videodata->_NET_WM_STATE_HIDDEN) {
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#ifdef DEBUG_XEVENTS
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printf(" _NET_WM_STATE_HIDDEN");
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#endif
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}
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if (atoms[i] == videodata->_NET_WM_STATE_MAXIMIZED_HORZ) {
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#ifdef DEBUG_XEVENTS
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printf(" _NET_WM_STATE_MAXIMIZED_HORZ");
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#endif
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}
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if (atoms[i] == videodata->_NET_WM_STATE_MAXIMIZED_VERT) {
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#ifdef DEBUG_XEVENTS
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printf(" _NET_WM_STATE_MAXIMIZED_VERT");
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#endif
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}
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if (atoms[i] == videodata->_NET_WM_STATE_FULLSCREEN) {
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#ifdef DEBUG_XEVENTS
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printf(" _NET_WM_STATE_FULLSCREEN");
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#endif
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}
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}
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}
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#ifdef DEBUG_XEVENTS
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printf(" }\n");
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#endif
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}
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}
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break;
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/* Copy the selection from XA_CUT_BUFFER0 to the requested property */
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case SelectionRequest: {
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XSelectionRequestEvent *req;
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XEvent sevent;
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int seln_format;
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unsigned long nbytes;
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unsigned long overflow;
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unsigned char *seln_data;
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req = &xevent.xselectionrequest;
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#ifdef DEBUG_XEVENTS
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printf("SelectionRequest (requestor = %ld, target = %ld)\n",
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req->requestor, req->target);
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#endif
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sevent.xselection.type = SelectionNotify;
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sevent.xselection.display = req->display;
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sevent.xselection.selection = req->selection;
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sevent.xselection.target = None;
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sevent.xselection.property = None;
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sevent.xselection.requestor = req->requestor;
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sevent.xselection.time = req->time;
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if (XGetWindowProperty(display, DefaultRootWindow(display),
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XA_CUT_BUFFER0, 0, INT_MAX/4, False, req->target,
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&sevent.xselection.target, &seln_format, &nbytes,
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&overflow, &seln_data) == Success) {
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if (sevent.xselection.target == req->target) {
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XChangeProperty(display, req->requestor, req->property,
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sevent.xselection.target, seln_format, PropModeReplace,
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seln_data, nbytes);
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sevent.xselection.property = req->property;
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}
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XFree(seln_data);
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}
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XSendEvent(display, req->requestor, False, 0, &sevent);
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XSync(display, False);
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}
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break;
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case SelectionNotify: {
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#ifdef DEBUG_XEVENTS
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printf("SelectionNotify (requestor = %ld, target = %ld)\n",
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xevent.xselection.requestor, xevent.xselection.target);
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#endif
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videodata->selection_waiting = SDL_FALSE;
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}
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break;
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default:{
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#ifdef DEBUG_XEVENTS
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printf("Unhandled event %d\n", xevent.type);
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#endif
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}
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break;
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}
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}
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/* Ack! XPending() actually performs a blocking read if no events available */
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static int
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X11_Pending(Display * display)
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{
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/* Flush the display connection and look to see if events are queued */
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XFlush(display);
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if (XEventsQueued(display, QueuedAlready)) {
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return (1);
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}
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/* More drastic measures are required -- see if X is ready to talk */
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{
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static struct timeval zero_time; /* static == 0 */
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int x11_fd;
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fd_set fdset;
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x11_fd = ConnectionNumber(display);
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FD_ZERO(&fdset);
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FD_SET(x11_fd, &fdset);
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if (select(x11_fd + 1, &fdset, NULL, NULL, &zero_time) == 1) {
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return (XPending(display));
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}
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}
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/* Oh well, nothing is ready .. */
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return (0);
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}
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void
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X11_PumpEvents(_THIS)
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{
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SDL_VideoData *data = (SDL_VideoData *) _this->driverdata;
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/* Update activity every 30 seconds to prevent screensaver */
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if (_this->suspend_screensaver) {
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Uint32 now = SDL_GetTicks();
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if (!data->screensaver_activity ||
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(int) (now - data->screensaver_activity) >= 30000) {
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XResetScreenSaver(data->display);
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data->screensaver_activity = now;
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}
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}
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/* Keep processing pending events */
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while (X11_Pending(data->display)) {
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X11_DispatchEvent(_this);
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}
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}
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/* This is so wrong it hurts */
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#define GNOME_SCREENSAVER_HACK
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#ifdef GNOME_SCREENSAVER_HACK
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#include <unistd.h>
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static pid_t screensaver_inhibit_pid;
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static void
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gnome_screensaver_disable()
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{
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screensaver_inhibit_pid = fork();
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if (screensaver_inhibit_pid == 0) {
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close(0);
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close(1);
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close(2);
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execl("/usr/bin/gnome-screensaver-command",
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"gnome-screensaver-command",
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"--inhibit",
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"--reason",
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"GNOME screensaver doesn't respect MIT-SCREEN-SAVER", NULL);
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exit(2);
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}
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}
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static void
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gnome_screensaver_enable()
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{
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kill(screensaver_inhibit_pid, 15);
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}
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#endif
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void
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X11_SuspendScreenSaver(_THIS)
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{
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#if SDL_VIDEO_DRIVER_X11_SCRNSAVER
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SDL_VideoData *data = (SDL_VideoData *) _this->driverdata;
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int dummy;
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int major_version, minor_version;
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if (SDL_X11_HAVE_XSS) {
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/* XScreenSaverSuspend was introduced in MIT-SCREEN-SAVER 1.1 */
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if (!XScreenSaverQueryExtension(data->display, &dummy, &dummy) ||
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!XScreenSaverQueryVersion(data->display,
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&major_version, &minor_version) ||
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major_version < 1 || (major_version == 1 && minor_version < 1)) {
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return;
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}
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XScreenSaverSuspend(data->display, _this->suspend_screensaver);
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XResetScreenSaver(data->display);
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}
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#endif
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#ifdef GNOME_SCREENSAVER_HACK
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if (_this->suspend_screensaver) {
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gnome_screensaver_disable();
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} else {
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gnome_screensaver_enable();
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}
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#endif
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}
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/* vi: set ts=4 sw=4 expandtab: */
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