nilix/fluxbox
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions
fluxbox/src/BaseDisplay.cc

604 lines
17 KiB
C++
Raw Blame History

// BaseDisplay.cc for Blackbox - an X11 Window manager
// Copyright (c) 1997 - 2000 Brad Hughes (bhughes@tcac.net)
//
// 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.
//
// Changes for Fluxbox made by Henrik Kinnunen (fluxgen@linuxmail.org)
//
// stupid macros needed to access some functions in version 2 of the GNU C
// library
#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif // _GNU_SOURCE
#ifdef HAVE_CONFIG_H
# include "../config.h"
#endif // HAVE_CONFIG_H
#include <X11/Xlib.h>
#include <X11/Xatom.h>
#include <X11/Xutil.h>
#include <X11/cursorfont.h>
#ifdef SHAPE
# include <X11/extensions/shape.h>
#endif // SHAPE
#include "i18n.hh"
#include "BaseDisplay.hh"
#include "LinkedList.hh"
#include "Timer.hh"
#ifdef HAVE_FCNTL_H
# include <fcntl.h>
#endif // HAVE_FCNTL_H
#ifdef HAVE_STDIO_H
# include <stdio.h>
#endif // HAVE_STDIO_H
#ifdef STDC_HEADERS
# include <stdlib.h>
# include <string.h>
#endif // STDC_HEADERS
#ifdef HAVE_UNISTD_H
# include <sys/types.h>
# include <unistd.h>
#endif // HAVE_UNISTD_H
#ifdef HAVE_SYS_SELECT_H
# include <sys/select.h>
#endif // HAVE_SYS_SELECT_H
#ifdef HAVE_SIGNAL_H
# include <signal.h>
#endif // HAVE_SIGNAL_H
#ifndef SA_NODEFER
# ifdef SA_INTERRUPT
# define SA_NODEFER SA_INTERRUPT
# else // !SA_INTERRUPT
# define SA_NODEFER (0)
# endif // SA_INTERRUPT
#endif // SA_NODEFER
#ifdef HAVE_SYS_WAIT_H
# include <sys/types.h>
# include <sys/wait.h>
#endif // HAVE_SYS_WAIT_H
#if defined(HAVE_PROCESS_H) && defined(__EMX__)
# include <process.h>
#endif // HAVE_PROCESS_H __EMX__
// X error handler to handle any and all X errors while the application is
// running
static Bool internal_error = False;
static Window last_bad_window = None;
BaseDisplay *base_display;
#ifdef DEBUG
static int handleXErrors(Display *d, XErrorEvent *e) {
char errtxt[128];
XGetErrorText(d, e->error_code, errtxt, 128);
fprintf(stderr,
I18n::instance()->
getMessage(
#ifdef NLS
BaseDisplaySet, BaseDisplayXError,
#else // !NLS
0, 0,
#endif // NLS
"%s: X error: %s(%d) opcodes %d/%d\n resource 0x%lx\n"),
base_display->getApplicationName(), errtxt, e->error_code,
e->request_code, e->minor_code, e->resourceid);
#else // !DEBUG
static int handleXErrors(Display *, XErrorEvent *e) {
#endif // DEBUG
if (e->error_code == BadWindow)
last_bad_window = e->resourceid;
if (internal_error)
abort();
return(False);
}
// signal handler to allow for proper and gentle shutdown
#ifndef HAVE_SIGACTION
static RETSIGTYPE signalhandler(int sig) {
#else // HAVE_SIGACTION
static void signalhandler(int sig) {
#endif // HAVE_SIGACTION
I18n *i18n = I18n::instance();
static int re_enter = 0;
switch (sig) {
case SIGCHLD:
int status;
waitpid(-1, &status, WNOHANG | WUNTRACED);
#ifndef HAVE_SIGACTION
// assume broken, braindead sysv signal semantics
signal(SIGCHLD, (RETSIGTYPE (*)(int)) signalhandler);
#endif // HAVE_SIGACTION
break;
default:
if (base_display->handleSignal(sig)) {
#ifndef HAVE_SIGACTION
// assume broken, braindead sysv signal semantics
signal(sig, (RETSIGTYPE (*)(int)) signalhandler);
#endif // HAVE_SIGACTION
return;
}
fprintf(stderr,
i18n->getMessage(
#ifdef NLS
BaseDisplaySet, BaseDisplaySignalCaught,
#else // !NLS
0, 0,
#endif // NLS
"%s: signal %d caught\n"),
base_display->getApplicationName(), sig);
if (! base_display->isStartup() && ! re_enter) {
internal_error = True;
re_enter = 1;
fprintf(stderr,
i18n->getMessage(
#ifdef NLS
BaseDisplaySet, BaseDisplayShuttingDown,
#else // !NLS
0, 0,
#endif // NLS
"shutting down\n"));
base_display->shutdown();
}
if (sig != SIGTERM && sig != SIGINT) {
fprintf(stderr,
i18n->getMessage(
#ifdef NLS
BaseDisplaySet, BaseDisplayAborting,
#else // !NLS
0, 0,
#endif // NLS
"aborting... dumping core\n"));
abort();
}
exit(0);
break;
}
}
// convenience functions
#ifndef __EMX__
void bexec(const char *command, char* displaystring) {
if (! fork()) {
setsid();
putenv(displaystring);
execl("/bin/sh", "/bin/sh", "-c", command, NULL);
exit(0);
}
}
#endif // !__EMX__
BaseDisplay::BaseDisplay(char *app_name, char *dpy_name) {
application_name = app_name;
_startup = True;
_shutdown = False;
server_grabs = 0;
last_bad_window = None;
I18n *i18n = I18n::instance();
::base_display = this;
#ifdef HAVE_SIGACTION
struct sigaction action;
action.sa_handler = signalhandler;
action.sa_mask = sigset_t();
action.sa_flags = SA_NOCLDSTOP | SA_NODEFER;
sigaction(SIGSEGV, &action, NULL);
sigaction(SIGFPE, &action, NULL);
sigaction(SIGTERM, &action, NULL);
sigaction(SIGINT, &action, NULL);
sigaction(SIGCHLD, &action, NULL);
sigaction(SIGHUP, &action, NULL);
sigaction(SIGUSR1, &action, NULL);
sigaction(SIGUSR2, &action, NULL);
#else // !HAVE_SIGACTION
signal(SIGSEGV, (RETSIGTYPE (*)(int)) signalhandler);
signal(SIGFPE, (RETSIGTYPE (*)(int)) signalhandler);
signal(SIGTERM, (RETSIGTYPE (*)(int)) signalhandler);
signal(SIGINT, (RETSIGTYPE (*)(int)) signalhandler);
signal(SIGUSR1, (RETSIGTYPE (*)(int)) signalhandler);
signal(SIGUSR2, (RETSIGTYPE (*)(int)) signalhandler);
signal(SIGHUP, (RETSIGTYPE (*)(int)) signalhandler);
signal(SIGCHLD, (RETSIGTYPE (*)(int)) signalhandler);
#endif // HAVE_SIGACTION
if (! (display = XOpenDisplay(dpy_name))) {
fprintf(stderr,
i18n->
getMessage(
#ifdef NLS
BaseDisplaySet, BaseDisplayXConnectFail,
#else // !NLS
0, 0,
#endif // NLS
"BaseDisplay::BaseDisplay: connection to X server failed.\n"));
throw static_cast<int>(2); //throw error 2
} else if (fcntl(ConnectionNumber(display), F_SETFD, 1) == -1) {
fprintf(stderr,
i18n->
getMessage(
#ifdef NLS
BaseDisplaySet, BaseDisplayCloseOnExecFail,
#else // !NLS
0, 0,
#endif // NLS
"BaseDisplay::BaseDisplay: couldn't mark display connection "
"as close-on-exec\n"));
throw static_cast<int>(2); //throw error 2
}
number_of_screens = ScreenCount(display);
display_name = XDisplayName(dpy_name);
#ifdef SHAPE
shape.extensions = XShapeQueryExtension(display, &shape.event_basep,
&shape.error_basep);
#else // !SHAPE
shape.extensions = False;
#endif // SHAPE
//---------- setup atoms
xa_wm_colormap_windows =
XInternAtom(display, "WM_COLORMAP_WINDOWS", False);
xa_wm_protocols = XInternAtom(display, "WM_PROTOCOLS", False);
xa_wm_state = XInternAtom(display, "WM_STATE", False);
xa_wm_change_state = XInternAtom(display, "WM_CHANGE_STATE", False);
xa_wm_delete_window = XInternAtom(display, "WM_DELETE_WINDOW", False);
xa_wm_take_focus = XInternAtom(display, "WM_TAKE_FOCUS", False);
motif_wm_hints = XInternAtom(display, "_MOTIF_WM_HINTS", False);
blackbox_hints = XInternAtom(display, "_BLACKBOX_HINTS", False);
blackbox_attributes = XInternAtom(display, "_BLACKBOX_ATTRIBUTES", False);
blackbox_change_attributes =
XInternAtom(display, "_BLACKBOX_CHANGE_ATTRIBUTES", False);
blackbox_structure_messages =
XInternAtom(display, "_BLACKBOX_STRUCTURE_MESSAGES", False);
blackbox_notify_startup =
XInternAtom(display, "_BLACKBOX_NOTIFY_STARTUP", False);
blackbox_notify_window_add =
XInternAtom(display, "_BLACKBOX_NOTIFY_WINDOW_ADD", False);
blackbox_notify_window_del =
XInternAtom(display, "_BLACKBOX_NOTIFY_WINDOW_DEL", False);
blackbox_notify_current_workspace =
XInternAtom(display, "_BLACKBOX_NOTIFY_CURRENT_WORKSPACE", False);
blackbox_notify_workspace_count =
XInternAtom(display, "_BLACKBOX_NOTIFY_WORKSPACE_COUNT", False);
blackbox_notify_window_focus =
XInternAtom(display, "_BLACKBOX_NOTIFY_WINDOW_FOCUS", False);
blackbox_notify_window_raise =
XInternAtom(display, "_BLACKBOX_NOTIFY_WINDOW_RAISE", False);
blackbox_notify_window_lower =
XInternAtom(display, "_BLACKBOX_NOTIFY_WINDOW_LOWER", False);
blackbox_change_workspace =
XInternAtom(display, "_BLACKBOX_CHANGE_WORKSPACE", False);
blackbox_change_window_focus =
XInternAtom(display, "_BLACKBOX_CHANGE_WINDOW_FOCUS", False);
blackbox_cycle_window_focus =
XInternAtom(display, "_BLACKBOX_CYCLE_WINDOW_FOCUS", False);
#ifdef NEWWMSPEC
net_supported = XInternAtom(display, "_NET_SUPPORTED", False);
net_client_list = XInternAtom(display, "_NET_CLIENT_LIST", False);
net_client_list_stacking = XInternAtom(display, "_NET_CLIENT_LIST_STACKING", False);
net_number_of_desktops = XInternAtom(display, "_NET_NUMBER_OF_DESKTOPS", False);
net_desktop_geometry = XInternAtom(display, "_NET_DESKTOP_GEOMETRY", False);
net_desktop_viewport = XInternAtom(display, "_NET_DESKTOP_VIEWPORT", False);
net_current_desktop = XInternAtom(display, "_NET_CURRENT_DESKTOP", False);
net_desktop_names = XInternAtom(display, "_NET_DESKTOP_NAMES", False);
net_active_window = XInternAtom(display, "_NET_ACTIVE_WINDOW", False);
net_workarea = XInternAtom(display, "_NET_WORKAREA", False);
net_supporting_wm_check = XInternAtom(display, "_NET_SUPPORTING_WM_CHECK", False);
net_virtual_roots = XInternAtom(display, "_NET_VIRTUAL_ROOTS", False);
net_close_window = XInternAtom(display, "_NET_CLOSE_WINDOW", False);
net_wm_moveresize = XInternAtom(display, "_NET_WM_MOVERESIZE", False);
net_properties = XInternAtom(display, "_NET_PROPERTIES", False);
net_wm_name = XInternAtom(display, "_NET_WM_NAME", False);
net_wm_desktop = XInternAtom(display, "_NET_WM_DESKTOP", False);
net_wm_window_type = XInternAtom(display, "_NET_WM_WINDOW_TYPE", False);
net_wm_state = XInternAtom(display, "_NET_WM_STATE", False);
net_wm_strut = XInternAtom(display, "_NET_WM_STRUT", False);
net_wm_icon_geometry = XInternAtom(display, "_NET_WM_ICON_GEOMETRY", False);
net_wm_icon = XInternAtom(display, "_NET_WM_ICON", False);
net_wm_pid = XInternAtom(display, "_NET_WM_PID", False);
net_wm_handled_icons = XInternAtom(display, "_NET_WM_HANDLED_ICONS", False);
net_wm_ping = XInternAtom(display, "_NET_WM_PING", False);
#endif // NEWWMSPEC
#ifdef GNOME
gnome_wm_win_layer = XInternAtom(display, "_WIN_LAYER", False);
gnome_wm_win_state = XInternAtom(display, "_WIN_STATE", False);
gnome_wm_win_hints = XInternAtom(display, "_WIN_HINTS", False);
gnome_wm_win_app_state = XInternAtom(display, "_WIN_APP_STATE", False);
gnome_wm_win_expanded_size = XInternAtom(display, "_WIN_EXPANDED_SIZE", False);
gnome_wm_win_icons = XInternAtom(display, "_WIN_ICONS", False);
gnome_wm_win_workspace = XInternAtom(display, "_WIN_WORKSPACE", False);
gnome_wm_win_workspace_count = XInternAtom(display, "_WIN_WORKSPACE_COUNT", False);
gnome_wm_win_workspace_names = XInternAtom(display, "_WIN_WORKSPACE_NAMES", False);
gnome_wm_win_client_list = XInternAtom(display, "_WIN_CLIENT_LIST", False);
gnome_wm_prot = XInternAtom(display, "_WIN_PROTOCOLS", False);
gnome_wm_supporting_wm_check = XInternAtom(display, "_WIN_SUPPORTING_WM_CHECK", False);
#endif // GNOME
cursor.session = XCreateFontCursor(display, XC_left_ptr);
cursor.move = XCreateFontCursor(display, XC_fleur);
cursor.ll_angle = XCreateFontCursor(display, XC_ll_angle);
cursor.lr_angle = XCreateFontCursor(display, XC_lr_angle);
XSetErrorHandler((XErrorHandler) handleXErrors);
timerList = new LinkedList<BTimer>;
screenInfoList = new LinkedList<ScreenInfo>;
int i;
for (i = 0; i < number_of_screens; i++) {
ScreenInfo *screeninfo = new ScreenInfo(this, i);
screenInfoList->insert(screeninfo);
}
}
BaseDisplay::~BaseDisplay(void) {
while (screenInfoList->count()) {
ScreenInfo *si = screenInfoList->first();
screenInfoList->remove(si);
delete si;
}
delete screenInfoList;
// we don't create the BTimers, we don't delete them
while (timerList->count())
timerList->remove(0);
delete timerList;
XCloseDisplay(display);
}
void BaseDisplay::eventLoop(void) {
run();
int xfd = ConnectionNumber(display);
while ((! _shutdown) && (! internal_error)) {
if (XPending(display)) {
XEvent e;
XNextEvent(display, &e);
if (last_bad_window != None && e.xany.window == last_bad_window) {
#ifdef DEBUG
fprintf(stderr,
I18n::instance()->
getMessage(
#ifdef NLS
BaseDisplaySet, BaseDisplayBadWindowRemove,
#else // !NLS
0, 0,
#endif // NLS
"BaseDisplay::eventLoop(): removing bad window "
"from event queue\n"));
#endif // DEBUG
} else {
last_bad_window = None;
process_event(&e);
}
} else {
fd_set rfds;
timeval now, tm, *timeout = (timeval *) 0;
FD_ZERO(&rfds);
FD_SET(xfd, &rfds);
if (timerList->count()) {
gettimeofday(&now, 0);
tm.tv_sec = tm.tv_usec = 0l;
BTimer *timer = timerList->first();
tm.tv_sec = timer->getStartTime().tv_sec +
timer->getTimeout().tv_sec - now.tv_sec;
tm.tv_usec = timer->getStartTime().tv_usec +
timer->getTimeout().tv_usec - now.tv_usec;
while (tm.tv_usec >= 1000000) {
tm.tv_sec++;
tm.tv_usec -= 1000000;
}
while (tm.tv_usec < 0) {
if (tm.tv_sec > 0) {
tm.tv_sec--;
tm.tv_usec += 1000000;
} else {
tm.tv_usec = 0;
break;
}
}
timeout = &tm;
}
select(xfd + 1, &rfds, 0, 0, timeout);
// check for timer timeout
gettimeofday(&now, 0);
LinkedListIterator<BTimer> it(timerList);
for(; it.current(); it++) {
tm.tv_sec = it.current()->getStartTime().tv_sec +
it.current()->getTimeout().tv_sec;
tm.tv_usec = it.current()->getStartTime().tv_usec +
it.current()->getTimeout().tv_usec;
if ((now.tv_sec < tm.tv_sec) ||
(now.tv_sec == tm.tv_sec && now.tv_usec < tm.tv_usec))
break;
it.current()->fireTimeout();
// restart the current timer so that the start time is updated
if (! it.current()->doOnce())
it.current()->start();
else
it.current()->stop();
}
}
}
}
const Bool BaseDisplay::validateWindow(Window window) {
XEvent event;
if (XCheckTypedWindowEvent(display, window, DestroyNotify, &event)) {
XPutBackEvent(display, &event);
return False;
}
return True;
}
void BaseDisplay::grab(void) {
if (! server_grabs++)
XGrabServer(display);
}
void BaseDisplay::ungrab(void) {
if (! --server_grabs)
XUngrabServer(display);
if (server_grabs < 0) server_grabs = 0;
}
void BaseDisplay::addTimer(BTimer *timer) {
if (! timer) return;
LinkedListIterator<BTimer> it(timerList);
int index = 0;
for (; it.current(); it++, index++)
if ((it.current()->getTimeout().tv_sec > timer->getTimeout().tv_sec) ||
((it.current()->getTimeout().tv_sec == timer->getTimeout().tv_sec) &&
(it.current()->getTimeout().tv_usec >= timer->getTimeout().tv_usec)))
break;
timerList->insert(timer, index);
}
void BaseDisplay::removeTimer(BTimer *timer) {
timerList->remove(timer);
}
ScreenInfo::ScreenInfo(BaseDisplay *d, int num) {
basedisplay = d;
screen_number = num;
root_window = RootWindow(basedisplay->getXDisplay(), screen_number);
depth = DefaultDepth(basedisplay->getXDisplay(), screen_number);
width =
WidthOfScreen(ScreenOfDisplay(basedisplay->getXDisplay(), screen_number));
height =
HeightOfScreen(ScreenOfDisplay(basedisplay->getXDisplay(), screen_number));
// search for a TrueColor Visual... if we can't find one... we will use the
// default visual for the screen
XVisualInfo vinfo_template, *vinfo_return;
int vinfo_nitems;
vinfo_template.screen = screen_number;
vinfo_template.c_class = TrueColor;
visual = (Visual *) 0;
if ((vinfo_return = XGetVisualInfo(basedisplay->getXDisplay(),
VisualScreenMask | VisualClassMask,
&vinfo_template, &vinfo_nitems)) &&
vinfo_nitems > 0) {
for (int i = 0; i < vinfo_nitems; i++) {
if (depth < (vinfo_return + i)->depth) {
depth = (vinfo_return + i)->depth;
visual = (vinfo_return + i)->visual;
}
}
XFree(vinfo_return);
}
if (visual)
colormap = XCreateColormap(basedisplay->getXDisplay(), root_window,
visual, AllocNone);
else {
visual = DefaultVisual(basedisplay->getXDisplay(), screen_number);
colormap = DefaultColormap(basedisplay->getXDisplay(), screen_number);
}
}
Reference in a new issue View git blame Copy permalink