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tint2/src/tint.c
o9000 b8a7304f4b Cleanup restart code
2016-01-05 00:18:05 +01:00

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/**************************************************************************
*
* Tint2 panel
*
* Copyright (C) 2007 Pål Staurland (staura@gmail.com)
* Modified (C) 2008 thierry lorthiois (lorthiois@bbsoft.fr) from Omega distribution
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
**************************************************************************/
#include <sys/stat.h>
#include <unistd.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <string.h>
#include <X11/Xutil.h>
#include <X11/Xatom.h>
#include <X11/Xlocale.h>
#include <X11/extensions/Xdamage.h>
#include <Imlib2.h>
#include <signal.h>
#include <unistd.h>
#include <sys/types.h>
#include <pwd.h>
#include <time.h>
#include <sys/time.h>
#ifdef HAVE_SN
#include <libsn/sn.h>
#include <sys/wait.h>
#endif
#include <version.h>
#include "server.h"
#include "window.h"
#include "config.h"
#include "task.h"
#include "taskbar.h"
#include "systraybar.h"
#include "launcher.h"
#include "panel.h"
#include "tooltip.h"
#include "timer.h"
#include "xsettings-client.h"
#include "uevent.h"
#ifdef ENABLE_LIBUNWIND
#define UNW_LOCAL_ONLY
#include <libunwind.h>
#else
#ifdef ENABLE_EXECINFO
#include <execinfo.h>
#endif
#endif
// Drag and Drop state variables
Window dnd_source_window;
Window dnd_target_window;
int dnd_version;
Atom dnd_selection;
Atom dnd_atom;
int dnd_sent_request;
char *dnd_launcher_exec;
XSettingsClient *xsettings_client = NULL;
timeout *detect_compositor_timer = NULL;
int detect_compositor_timer_counter = 0;
double start_time = 0;
int crash_count = 0;
void detect_compositor(void *arg)
{
if (server.composite_manager) {
stop_timeout(detect_compositor_timer);
return;
}
detect_compositor_timer_counter--;
if (detect_compositor_timer_counter < 0) {
stop_timeout(detect_compositor_timer);
return;
}
// No compositor, check for one
if (XGetSelectionOwner(server.display, server.atom._NET_WM_CM_S0) != None) {
stop_timeout(detect_compositor_timer);
// Restart tint2
fprintf(stderr, "Detected compositor, restarting tint2...\n");
kill(getpid(), SIGUSR1);
}
}
void start_detect_compositor()
{
// Already have a compositor, nothing to do
if (server.composite_manager)
return;
stop_timeout(detect_compositor_timer);
// Check every 0.5 seconds for up to 30 seconds
detect_compositor_timer_counter = 60;
detect_compositor_timer = add_timeout(500, 500, detect_compositor, 0, &detect_compositor_timer);
}
void signal_handler(int sig)
{
// signal handler is light as it should be
signal_pending = sig;
}
void write_string(int fd, const char *s)
{
int len = strlen(s);
while (len > 0) {
int count = write(fd, s, len);
if (count >= 0) {
s += count;
len -= count;
} else {
break;
}
}
}
const char *signal_name(int sig)
{
switch (sig) {
case SIGHUP: return "SIGHUP: Hangup (POSIX).";
case SIGINT: return "SIGINT: Interrupt (ANSI).";
case SIGQUIT: return "SIGQUIT: Quit (POSIX).";
case SIGILL: return "SIGILL: Illegal instruction (ANSI).";
case SIGTRAP: return "SIGTRAP: Trace trap (POSIX).";
case SIGABRT: return "SIGABRT/SIGIOT: Abort (ANSI) / IOT trap (4.2 BSD).";
case SIGBUS: return "SIGBUS: BUS error (4.2 BSD).";
case SIGFPE: return "SIGFPE: Floating-point exception (ANSI).";
case SIGKILL: return "SIGKILL: Kill, unblockable (POSIX).";
case SIGUSR1: return "SIGUSR1: User-defined signal 1 (POSIX).";
case SIGSEGV: return "SIGSEGV: Segmentation violation (ANSI).";
case SIGUSR2: return "SIGUSR2: User-defined signal 2 (POSIX).";
case SIGPIPE: return "SIGPIPE: Broken pipe (POSIX).";
case SIGALRM: return "SIGALRM: Alarm clock (POSIX).";
case SIGTERM: return "SIGTERM: Termination (ANSI).";
//case SIGSTKFLT: return "SIGSTKFLT: Stack fault.";
case SIGCHLD: return "SIGCHLD: Child status has changed (POSIX).";
case SIGCONT: return "SIGCONT: Continue (POSIX).";
case SIGSTOP: return "SIGSTOP: Stop, unblockable (POSIX).";
case SIGTSTP: return "SIGTSTP: Keyboard stop (POSIX).";
case SIGTTIN: return "SIGTTIN: Background read from tty (POSIX).";
case SIGTTOU: return "SIGTTOU: Background write to tty (POSIX).";
case SIGURG: return "SIGURG: Urgent condition on socket (4.2 BSD).";
case SIGXCPU: return "SIGXCPU: CPU limit exceeded (4.2 BSD).";
case SIGXFSZ: return "SIGXFSZ: File size limit exceeded (4.2 BSD).";
case SIGVTALRM: return "SIGVTALRM: Virtual alarm clock (4.2 BSD).";
case SIGPROF: return "SIGPROF: Profiling alarm clock (4.2 BSD).";
case SIGWINCH: return "SIGWINCH: Window size change (4.3 BSD, Sun).";
case SIGIO: return "SIGIO: Pollable event occurred (System V) / I/O now possible (4.2 BSD).";
//case SIGPWR: return "SIGPWR: Power failure restart (System V).";
case SIGSYS: return "SIGSYS: Bad system call.";
}
static char s[64];
sprintf(s, "SIG=%d: Unknown", sig);
return s;
}
void log_string(int fd, const char *s)
{
write_string(2, s);
write_string(fd, s);
}
const char *get_home_dir()
{
const char *s = getenv("HOME");
if (s)
return s;
struct passwd *pw = getpwuid(getuid());
if (!pw)
return NULL;
return pw->pw_dir;
}
void dump_backtrace(int log_fd)
{
log_string(log_fd, YELLOW "\nBacktrace:\n");
#ifdef ENABLE_LIBUNWIND
unw_cursor_t cursor;
unw_context_t context;
unw_getcontext(&context);
unw_init_local(&cursor, &context);
while (unw_step(&cursor) > 0) {
unw_word_t offset;
char fname[128];
fname[0] = '\0';
(void) unw_get_proc_name(&cursor, fname, sizeof(fname), &offset);
log_string(log_fd, fname);
log_string(log_fd, "\n");
}
#else
#ifdef ENABLE_EXECINFO
#define MAX_TRACE_SIZE 128
void *array[MAX_TRACE_SIZE];
size_t size = backtrace(array, MAX_TRACE_SIZE);
char **strings = backtrace_symbols(array, size);
for (size_t i = 0; i < size; i++) {
log_string(log_fd, strings[i]);
log_string(log_fd, "\n");
}
free(strings);
#else
log_string(log_fd, "Backtrace not supported on this system. Install libunwind or libexecinfo.\n");
#endif
#endif
log_string(log_fd, RESET);
}
// sleep() returns early when signals arrive. This function does not.
void safe_sleep(int seconds)
{
double t0 = get_time();
while (1) {
double t = get_time();
if (t > t0 + seconds)
return;
sleep(1);
}
}
void reexecute_tint2()
{
write_string(2, GREEN "Attempting to restart tint2...\n" RESET);
// If tint2 cannot stay stable for 30 seconds, don't restart
if (get_time() - start_time < 30 && crash_count > 0) {
write_string(2, GREEN "Not restarting tint2 since the uptime from the last crash is too small.\n" RESET);
_exit(-1);
}
safe_sleep(1);
close_all_fds();
char *path = get_own_path();
if (fork() == 0) {
execlp(path, path, "--crashed", "-c", config_path, NULL);
}
_exit(-1);
}
void handle_crash(const char *reason)
{
// We are going to crash, so restart the panel
char path[4096];
sprintf(path, "%s/.tint2-crash.log", get_home_dir());
int log_fd = open(path, O_WRONLY|O_CREAT|O_TRUNC, 0600);
log_string(log_fd, RED "tint2 crashed, reason: ");
log_string(log_fd, reason);
log_string(log_fd, RESET "\n");
dump_backtrace(log_fd);
log_string(log_fd, RED "Please create a bug report with this log output.\n" RESET);
close(log_fd);
reexecute_tint2();
}
void crash_handler(int sig)
{
handle_crash(signal_name(sig));
}
void x11_io_error(Display *display)
{
handle_crash("X11 I/O error");
}
void init(int argc, char *argv[])
{
// Make stdout/stderr flush after a newline (for some reason they don't even if tint2 is started from a terminal)
setlinebuf(stdout);
setlinebuf(stderr);
// set global data
default_config();
default_timeout();
default_systray();
memset(&server, 0, sizeof(server));
#ifdef ENABLE_BATTERY
default_battery();
#endif
default_clock();
default_launcher();
default_taskbar();
default_tooltip();
default_execp();
default_panel();
// Read command line arguments
for (int i = 1; i < argc; ++i) {
int error = 0;
if (strcmp(argv[i], "-h") == 0 || strcmp(argv[i], "--help") == 0) {
printf("Usage: tint2 [[-c] <config_file>]\n");
exit(0);
} else if (strcmp(argv[i], "-v") == 0 || strcmp(argv[i], "--version") == 0) {
printf("tint2 version %s\n", VERSION_STRING);
exit(0);
} else if (strcmp(argv[i], "--crashed") == 0) {
crash_count++;
} else if (strcmp(argv[i], "-c") == 0) {
if (i + 1 < argc) {
i++;
config_path = strdup(argv[i]);
} else {
error = 1;
}
} else if (strcmp(argv[i], "-s") == 0) {
if (i + 1 < argc) {
i++;
snapshot_path = strdup(argv[i]);
} else {
error = 1;
}
} else if (i + 1 == argc) {
config_path = strdup(argv[i]);
} else {
error = 1;
}
if (error) {
printf("Usage: tint2 [[-c] <config_file>]\n");
exit(1);
}
}
// Set signal handlers
signal_pending = 0;
struct sigaction sa = {.sa_handler = signal_handler};
struct sigaction sa_chld = {.sa_handler = SIG_DFL, .sa_flags = SA_NOCLDWAIT};
struct sigaction sa_crash = {.sa_handler = crash_handler};
sigaction(SIGUSR1, &sa, 0);
sigaction(SIGINT, &sa, 0);
sigaction(SIGTERM, &sa, 0);
sigaction(SIGHUP, &sa, 0);
sigaction(SIGCHLD, &sa_chld, 0);
sigaction(SIGSEGV, &sa_crash, 0);
sigaction(SIGFPE, &sa_crash, 0);
sigaction(SIGPIPE, &sa_crash, 0);
sigaction(SIGBUS, &sa_crash, 0);
sigaction(SIGABRT, &sa_crash, 0);
sigaction(SIGSYS, &sa_crash, 0);
}
static int sn_pipe_valid = 0;
static int sn_pipe[2];
#ifdef HAVE_SN
static int error_trap_depth = 0;
static void error_trap_push(SnDisplay *display, Display *xdisplay)
{
++error_trap_depth;
}
static void error_trap_pop(SnDisplay *display, Display *xdisplay)
{
if (error_trap_depth == 0) {
fprintf(stderr, "Error trap underflow!\n");
return;
}
XSync(xdisplay, False); /* get all errors out of the queue */
--error_trap_depth;
}
static void sigchld_handler(int sig)
{
if (!startup_notifications)
return;
if (!sn_pipe_valid)
return;
ssize_t wur = write(sn_pipe[1], "x", 1);
(void)wur;
fsync(sn_pipe[1]);
}
static void sigchld_handler_async()
{
if (!startup_notifications)
return;
// Wait for all dead processes
pid_t pid;
while ((pid = waitpid(-1, NULL, WNOHANG)) > 0) {
SnLauncherContext *ctx;
ctx = (SnLauncherContext *)g_tree_lookup(server.pids, GINT_TO_POINTER(pid));
if (ctx) {
g_tree_remove(server.pids, GINT_TO_POINTER(pid));
sn_launcher_context_complete(ctx);
sn_launcher_context_unref(ctx);
}
}
}
static gint cmp_ptr(gconstpointer a, gconstpointer b)
{
if (a < b)
return -1;
else if (a == b)
return 0;
else
return 1;
}
#else
static void sigchld_handler_async()
{
}
#endif // HAVE_SN
void init_X11_pre_config()
{
server.display = XOpenDisplay(NULL);
if (!server.display) {
fprintf(stderr, "tint2: could not open display.\n");
exit(1);
}
XSetErrorHandler((XErrorHandler)server_catch_error);
XSetIOErrorHandler((XIOErrorHandler)x11_io_error);
server_init_atoms();
server.screen = DefaultScreen(server.display);
server.root_win = RootWindow(server.display, server.screen);
server.desktop = get_current_desktop();
setlocale(LC_ALL, "");
// config file use '.' as decimal separator
setlocale(LC_NUMERIC, "POSIX");
/* Catch events */
XSelectInput(server.display, server.root_win, PropertyChangeMask | StructureNotifyMask);
// get monitor and desktop config
get_monitors();
get_desktops();
server.disable_transparency = 0;
xsettings_client = xsettings_client_new(server.display, server.screen, xsettings_notify_cb, NULL, NULL);
}
void init_X11_post_config()
{
server_init_visual();
#ifdef HAVE_SN
// Initialize startup-notification
if (startup_notifications) {
server.sn_display = sn_display_new(server.display, error_trap_push, error_trap_pop);
server.pids = g_tree_new(cmp_ptr);
// Setup a handler for child termination
if (pipe(sn_pipe) != 0) {
fprintf(stderr, "Creating pipe failed.\n");
} else {
fcntl(sn_pipe[0], F_SETFL, O_NONBLOCK | fcntl(sn_pipe[0], F_GETFL));
fcntl(sn_pipe[1], F_SETFL, O_NONBLOCK | fcntl(sn_pipe[1], F_GETFL));
sn_pipe_valid = 1;
struct sigaction act;
memset(&act, 0, sizeof(struct sigaction));
act.sa_handler = sigchld_handler;
if (sigaction(SIGCHLD, &act, 0)) {
perror("sigaction");
}
}
}
#endif // HAVE_SN
imlib_context_set_display(server.display);
imlib_context_set_visual(server.visual);
imlib_context_set_colormap(server.colormap);
// load default icon
const gchar *const *data_dirs = g_get_system_data_dirs();
for (int i = 0; data_dirs[i] != NULL; i++) {
gchar *path = g_build_filename(data_dirs[i], "tint2", "default_icon.png", NULL);
if (g_file_test(path, G_FILE_TEST_EXISTS))
default_icon = imlib_load_image(path);
g_free(path);
}
}
void cleanup()
{
cleanup_execp();
cleanup_systray();
cleanup_tooltip();
cleanup_clock();
cleanup_launcher();
#ifdef ENABLE_BATTERY
cleanup_battery();
#endif
cleanup_panel();
cleanup_config();
if (default_icon) {
imlib_context_set_image(default_icon);
imlib_free_image();
default_icon = NULL;
}
imlib_context_disconnect_display();
xsettings_client_destroy(xsettings_client);
xsettings_client = NULL;
cleanup_server();
cleanup_timeout();
if (server.display)
XCloseDisplay(server.display);
server.display = NULL;
#ifdef HAVE_SN
if (startup_notifications) {
if (sn_pipe_valid) {
sn_pipe_valid = 0;
close(sn_pipe[1]);
close(sn_pipe[0]);
}
}
#endif
uevent_cleanup();
}
void get_snapshot(const char *path)
{
Panel *panel = &panels[0];
if (panel->area.width > server.monitors[0].width)
panel->area.width = server.monitors[0].width;
panel->temp_pmap = XCreatePixmap(server.display, server.root_win, panel->area.width, panel->area.height, server.depth);
render_panel(panel);
Imlib_Image img = NULL;
imlib_context_set_drawable(panel->temp_pmap);
img = imlib_create_image_from_drawable(0, 0, 0, panel->area.width, panel->area.height, 0);
imlib_context_set_image(img);
if (!panel_horizontal) {
// rotate 90° vertical panel
imlib_image_flip_horizontal();
imlib_image_flip_diagonal();
}
imlib_save_image(path);
imlib_free_image();
}
void window_action(Task *task, MouseAction action)
{
if (!task)
return;
switch (action) {
case NONE:
break;
case CLOSE:
close_window(task->win);
break;
case TOGGLE:
activate_window(task->win);
break;
case ICONIFY:
XIconifyWindow(server.display, task->win, server.screen);
break;
case TOGGLE_ICONIFY:
if (active_task && task->win == active_task->win)
XIconifyWindow(server.display, task->win, server.screen);
else
activate_window(task->win);
break;
case SHADE:
toggle_window_shade(task->win);
break;
case MAXIMIZE_RESTORE:
toggle_window_maximized(task->win);
break;
case MAXIMIZE:
toggle_window_maximized(task->win);
break;
case RESTORE:
toggle_window_maximized(task->win);
break;
case DESKTOP_LEFT: {
if (task->desktop == 0)
break;
int desktop = task->desktop - 1;
change_window_desktop(task->win, desktop);
if (desktop == server.desktop)
activate_window(task->win);
break;
}
case DESKTOP_RIGHT: {
if (task->desktop == server.num_desktops)
break;
int desktop = task->desktop + 1;
change_window_desktop(task->win, desktop);
if (desktop == server.desktop)
activate_window(task->win);
break;
}
case NEXT_TASK: {
Task *task1 = next_task(find_active_task(task));
activate_window(task1->win);
} break;
case PREV_TASK: {
Task *task1 = prev_task(find_active_task(task));
activate_window(task1->win);
}
}
}
int tint2_handles_click(Panel *panel, XButtonEvent *e)
{
Task *task = click_task(panel, e->x, e->y);
if (task) {
if ((e->button == 1 && mouse_left != 0) || (e->button == 2 && mouse_middle != 0) ||
(e->button == 3 && mouse_right != 0) || (e->button == 4 && mouse_scroll_up != 0) ||
(e->button == 5 && mouse_scroll_down != 0)) {
return 1;
} else
return 0;
}
LauncherIcon *icon = click_launcher_icon(panel, e->x, e->y);
if (icon) {
if (e->button == 1) {
return 1;
} else {
return 0;
}
}
// no launcher/task clicked --> check if taskbar clicked
Taskbar *taskbar = click_taskbar(panel, e->x, e->y);
if (taskbar && e->button == 1 && taskbar_mode == MULTI_DESKTOP)
return 1;
if (click_clock(panel, e->x, e->y)) {
if ((e->button == 1 && clock_lclick_command) || (e->button == 2 && clock_mclick_command) ||
(e->button == 3 && clock_rclick_command) || (e->button == 4 && clock_uwheel_command) ||
(e->button == 5 && clock_dwheel_command))
return 1;
else
return 0;
}
#ifdef ENABLE_BATTERY
if (click_battery(panel, e->x, e->y)) {
if ((e->button == 1 && battery_lclick_command) || (e->button == 2 && battery_mclick_command) ||
(e->button == 3 && battery_rclick_command) || (e->button == 4 && battery_uwheel_command) ||
(e->button == 5 && battery_dwheel_command))
return 1;
else
return 0;
}
#endif
if (click_execp(panel, e->x, e->y))
return 1;
return 0;
}
void forward_click(XEvent *e)
{
// forward the click to the desktop window (thanks conky)
XUngrabPointer(server.display, e->xbutton.time);
e->xbutton.window = server.root_win;
// icewm doesn't open under the mouse.
// and xfce doesn't open at all.
e->xbutton.x = e->xbutton.x_root;
e->xbutton.y = e->xbutton.y_root;
// printf("**** %d, %d\n", e->xbutton.x, e->xbutton.y);
// XSetInputFocus(server.display, e->xbutton.window, RevertToParent, e->xbutton.time);
XSendEvent(server.display, e->xbutton.window, False, ButtonPressMask, e);
}
void event_button_press(XEvent *e)
{
Panel *panel = get_panel(e->xany.window);
if (!panel)
return;
if (wm_menu && !tint2_handles_click(panel, &e->xbutton)) {
forward_click(e);
return;
}
task_drag = click_task(panel, e->xbutton.x, e->xbutton.y);
if (panel_layer == BOTTOM_LAYER)
XLowerWindow(server.display, panel->main_win);
}
void event_button_motion_notify(XEvent *e)
{
Panel *panel = get_panel(e->xany.window);
if (!panel || !task_drag)
return;
// Find the taskbar on the event's location
Taskbar *event_taskbar = click_taskbar(panel, e->xbutton.x, e->xbutton.y);
if (event_taskbar == NULL)
return;
// Find the task on the event's location
Task *event_task = click_task(panel, e->xbutton.x, e->xbutton.y);
// If the event takes place on the same taskbar as the task being dragged
if (&event_taskbar->area == task_drag->area.parent) {
if (taskbar_sort_method != TASKBAR_NOSORT) {
sort_tasks(event_taskbar);
} else {
// Swap the task_drag with the task on the event's location (if they differ)
if (event_task && event_task != task_drag) {
GList *drag_iter = g_list_find(event_taskbar->area.children, task_drag);
GList *task_iter = g_list_find(event_taskbar->area.children, event_task);
if (drag_iter && task_iter) {
gpointer temp = task_iter->data;
task_iter->data = drag_iter->data;
drag_iter->data = temp;
event_taskbar->area.resize_needed = 1;
panel_refresh = TRUE;
task_dragged = 1;
}
}
}
} else { // The event is on another taskbar than the task being dragged
if (task_drag->desktop == ALL_DESKTOPS || taskbar_mode != MULTI_DESKTOP)
return;
Taskbar *drag_taskbar = (Taskbar *)task_drag->area.parent;
remove_area((Area *)task_drag);
if (event_taskbar->area.posx > drag_taskbar->area.posx || event_taskbar->area.posy > drag_taskbar->area.posy) {
int i = (taskbarname_enabled) ? 1 : 0;
event_taskbar->area.children = g_list_insert(event_taskbar->area.children, task_drag, i);
} else
event_taskbar->area.children = g_list_append(event_taskbar->area.children, task_drag);
// Move task to other desktop (but avoid the 'Window desktop changed' code in 'event_property_notify')
task_drag->area.parent = &event_taskbar->area;
task_drag->desktop = event_taskbar->desktop;
change_window_desktop(task_drag->win, event_taskbar->desktop);
if (taskbar_sort_method != TASKBAR_NOSORT) {
sort_tasks(event_taskbar);
}
event_taskbar->area.resize_needed = 1;
drag_taskbar->area.resize_needed = 1;
task_dragged = 1;
panel_refresh = TRUE;
panel->area.resize_needed = 1;
}
}
void event_button_release(XEvent *e)
{
Panel *panel = get_panel(e->xany.window);
if (!panel)
return;
if (wm_menu && !tint2_handles_click(panel, &e->xbutton)) {
forward_click(e);
if (panel_layer == BOTTOM_LAYER)
XLowerWindow(server.display, panel->main_win);
task_drag = 0;
return;
}
int action = TOGGLE_ICONIFY;
switch (e->xbutton.button) {
case 1:
action = mouse_left;
break;
case 2:
action = mouse_middle;
break;
case 3:
action = mouse_right;
break;
case 4:
action = mouse_scroll_up;
break;
case 5:
action = mouse_scroll_down;
break;
case 6:
action = mouse_tilt_left;
break;
case 7:
action = mouse_tilt_right;
break;
}
if (click_clock(panel, e->xbutton.x, e->xbutton.y)) {
clock_action(e->xbutton.button);
if (panel_layer == BOTTOM_LAYER)
XLowerWindow(server.display, panel->main_win);
task_drag = 0;
return;
}
#ifdef ENABLE_BATTERY
if (click_battery(panel, e->xbutton.x, e->xbutton.y)) {
battery_action(e->xbutton.button);
if (panel_layer == BOTTOM_LAYER)
XLowerWindow(server.display, panel->main_win);
task_drag = 0;
return;
}
#endif
Execp *execp = click_execp(panel, e->xbutton.x, e->xbutton.y);
if (execp) {
execp_action(execp, e->xbutton.button);
if (panel_layer == BOTTOM_LAYER)
XLowerWindow(server.display, panel->main_win);
task_drag = 0;
return;
}
if (e->xbutton.button == 1 && click_launcher(panel, e->xbutton.x, e->xbutton.y)) {
LauncherIcon *icon = click_launcher_icon(panel, e->xbutton.x, e->xbutton.y);
if (icon) {
launcher_action(icon, e);
}
task_drag = 0;
return;
}
Taskbar *taskbar;
if (!(taskbar = click_taskbar(panel, e->xbutton.x, e->xbutton.y))) {
// TODO: check better solution to keep window below
if (panel_layer == BOTTOM_LAYER)
XLowerWindow(server.display, panel->main_win);
task_drag = 0;
return;
}
// drag and drop task
if (task_dragged) {
task_drag = 0;
task_dragged = 0;
return;
}
// switch desktop
if (taskbar_mode == MULTI_DESKTOP) {
gboolean diff_desktop = FALSE;
if (taskbar->desktop != server.desktop && action != CLOSE && action != DESKTOP_LEFT && action != DESKTOP_RIGHT) {
diff_desktop = TRUE;
change_desktop(taskbar->desktop);
}
Task *task = click_task(panel, e->xbutton.x, e->xbutton.y);
if (task) {
if (diff_desktop) {
if (action == TOGGLE_ICONIFY) {
if (!window_is_active(task->win))
activate_window(task->win);
} else {
window_action(task, action);
}
} else {
window_action(task, action);
}
}
} else {
window_action(click_task(panel, e->xbutton.x, e->xbutton.y), action);
}
// to keep window below
if (panel_layer == BOTTOM_LAYER)
XLowerWindow(server.display, panel->main_win);
}
void update_desktop_names()
{
if (!taskbarname_enabled)
return;
GSList *list = get_desktop_names();
for (int i = 0; i < num_panels; i++) {
int j;
GSList *l;
for (j = 0, l = list; j < panels[i].num_desktops; j++) {
gchar *name;
if (l) {
name = g_strdup(l->data);
l = l->next;
} else {
name = g_strdup_printf("%d", j + 1);
}
Taskbar *taskbar = &panels[i].taskbar[j];
if (strcmp(name, taskbar->bar_name.name) != 0) {
g_free(taskbar->bar_name.name);
taskbar->bar_name.name = name;
taskbar->bar_name.area.resize_needed = 1;
} else {
g_free(name);
}
}
}
for (GSList *l = list; l; l = l->next)
g_free(l->data);
g_slist_free(list);
panel_refresh = TRUE;
}
void update_task_desktop(Task *task)
{
// fprintf(stderr, "%s %d:\n", __FUNCTION__, __LINE__);
Window win = task->win;
remove_task(task);
task = add_task(win);
reset_active_task();
panel_refresh = TRUE;
}
void event_property_notify(XEvent *e)
{
gboolean debug = FALSE;
Window win = e->xproperty.window;
Atom at = e->xproperty.atom;
if (xsettings_client)
xsettings_client_process_event(xsettings_client, e);
if (win == server.root_win) {
if (!server.got_root_win) {
XSelectInput(server.display, server.root_win, PropertyChangeMask | StructureNotifyMask);
server.got_root_win = TRUE;
}
// Change name of desktops
else if (at == server.atom._NET_DESKTOP_NAMES) {
if (debug)
fprintf(stderr, "%s %d: win = root, atom = _NET_DESKTOP_NAMES\n", __FUNCTION__, __LINE__);
update_desktop_names();
}
// Change desktops
else if (at == server.atom._NET_NUMBER_OF_DESKTOPS ||
at == server.atom._NET_DESKTOP_GEOMETRY ||
at == server.atom._NET_DESKTOP_VIEWPORT ||
at == server.atom._NET_WORKAREA ||
at == server.atom._NET_CURRENT_DESKTOP) {
if (debug)
fprintf(stderr, "%s %d: win = root, atom = ?? desktops changed\n", __FUNCTION__, __LINE__);
if (!taskbar_enabled)
return;
int old_num_desktops = server.num_desktops;
int old_desktop = server.desktop;
server_get_number_of_desktops();
server.desktop = get_current_desktop();
if (old_num_desktops != server.num_desktops) {
if (server.num_desktops <= server.desktop) {
server.desktop = server.num_desktops - 1;
}
cleanup_taskbar();
init_taskbar();
for (int i = 0; i < num_panels; i++) {
init_taskbar_panel(&panels[i]);
set_panel_items_order(&panels[i]);
visible_taskbar(&panels[i]);
panels[i].area.resize_needed = 1;
}
task_refresh_tasklist();
reset_active_task();
panel_refresh = TRUE;
} else if (old_desktop != server.desktop) {
for (int i = 0; i < num_panels; i++) {
Panel *panel = &panels[i];
set_taskbar_state(&panel->taskbar[old_desktop], TASKBAR_NORMAL);
set_taskbar_state(&panel->taskbar[server.desktop], TASKBAR_ACTIVE);
// check ALL_DESKTOPS task => resize taskbar
Taskbar *taskbar;
if (server.num_desktops > old_desktop) {
taskbar = &panel->taskbar[old_desktop];
GList *l = taskbar->area.children;
if (taskbarname_enabled)
l = l->next;
for (; l; l = l->next) {
Task *task = l->data;
if (task->desktop == ALL_DESKTOPS) {
task->area.on_screen = FALSE;
taskbar->area.resize_needed = 1;
panel_refresh = TRUE;
if (taskbar_mode == MULTI_DESKTOP)
panel->area.resize_needed = 1;
}
}
}
taskbar = &panel->taskbar[server.desktop];
GList *l = taskbar->area.children;
if (taskbarname_enabled)
l = l->next;
for (; l; l = l->next) {
Task *task = l->data;
if (task->desktop == ALL_DESKTOPS) {
task->area.on_screen = TRUE;
taskbar->area.resize_needed = 1;
if (taskbar_mode == MULTI_DESKTOP)
panel->area.resize_needed = 1;
}
}
if (server.viewports) {
GList *need_update = NULL;
GHashTableIter iter;
gpointer key, value;
g_hash_table_iter_init(&iter, win_to_task);
while (g_hash_table_iter_next(&iter, &key, &value)) {
Window task_win = *(Window *)key;
Task *task = task_get_task(task_win);
if (task) {
int desktop = get_window_desktop(task_win);
if (desktop != task->desktop) {
need_update = g_list_append(need_update, task);
}
}
}
for (l = need_update; l; l = l->next) {
Task *task = l->data;
update_task_desktop(task);
}
}
}
}
}
// Window list
else if (at == server.atom._NET_CLIENT_LIST) {
if (debug)
fprintf(stderr, "%s %d: win = root, atom = _NET_CLIENT_LIST\n", __FUNCTION__, __LINE__);
task_refresh_tasklist();
panel_refresh = TRUE;
}
// Change active
else if (at == server.atom._NET_ACTIVE_WINDOW) {
if (debug)
fprintf(stderr, "%s %d: win = root, atom = _NET_ACTIVE_WINDOW\n", __FUNCTION__, __LINE__);
reset_active_task();
panel_refresh = TRUE;
} else if (at == server.atom._XROOTPMAP_ID || at == server.atom._XROOTMAP_ID) {
if (debug)
fprintf(stderr, "%s %d: win = root, atom = _XROOTPMAP_ID\n", __FUNCTION__, __LINE__);
// change Wallpaper
for (int i = 0; i < num_panels; i++) {
set_panel_background(&panels[i]);
}
panel_refresh = TRUE;
}
} else {
Task *task = task_get_task(win);
if (debug) {
char *atom_name = XGetAtomName(server.display, at);
fprintf(stderr, "%s %d: win = %ld, task = %s, atom = %s\n", __FUNCTION__, __LINE__, win, task ? (task->title ? task->title : "??") : "null", atom_name);
XFree(atom_name);
}
if (!task) {
if (debug)
fprintf(stderr, "%s %d\n", __FUNCTION__, __LINE__);
if (at == server.atom._NET_WM_STATE) {
// xfce4 sends _NET_WM_STATE after minimized to tray, so we need to check if window is mapped
// if it is mapped and not set as skip_taskbar, we must add it to our task list
XWindowAttributes wa;
XGetWindowAttributes(server.display, win, &wa);
if (wa.map_state == IsViewable && !window_is_skip_taskbar(win)) {
if ((task = add_task(win)))
panel_refresh = TRUE;
}
}
return;
}
// printf("atom root_win = %s, %s\n", XGetAtomName(server.display, at), task->title);
// Window title changed
if (at == server.atom._NET_WM_VISIBLE_NAME || at == server.atom._NET_WM_NAME || at == server.atom.WM_NAME) {
if (get_title(task)) {
if (g_tooltip.mapped && (g_tooltip.area == (Area *)task)) {
tooltip_copy_text((Area *)task);
tooltip_update();
}
if (taskbar_sort_method == TASKBAR_SORT_TITLE)
sort_taskbar_for_win(win);
panel_refresh = TRUE;
}
}
// Demand attention
else if (at == server.atom._NET_WM_STATE) {
if (debug) {
int count;
Atom *atom_state = server_get_property(win, server.atom._NET_WM_STATE, XA_ATOM, &count);
for (int j = 0; j < count; j++) {
char *atom_state_name = XGetAtomName(server.display, atom_state[j]);
fprintf(stderr, "%s %d: _NET_WM_STATE = %s\n", __FUNCTION__, __LINE__, atom_state_name);
XFree(atom_state_name);
}
XFree(atom_state);
}
if (window_is_urgent(win)) {
add_urgent(task);
}
if (window_is_skip_taskbar(win)) {
remove_task(task);
panel_refresh = TRUE;
}
} else if (at == server.atom.WM_STATE) {
// Iconic state
TaskState state = (active_task && task->win == active_task->win ? TASK_ACTIVE : TASK_NORMAL);
if (window_is_iconified(win))
state = TASK_ICONIFIED;
set_task_state(task, state);
panel_refresh = TRUE;
}
// Window icon changed
else if (at == server.atom._NET_WM_ICON) {
get_icon(task);
panel_refresh = TRUE;
}
// Window desktop changed
else if (at == server.atom._NET_WM_DESKTOP) {
int desktop = get_window_desktop(win);
// printf(" Window desktop changed %d, %d\n", task->desktop, desktop);
// bug in windowmaker : send unecessary 'desktop changed' when focus changed
if (desktop != task->desktop) {
update_task_desktop(task);
}
} else if (at == server.atom.WM_HINTS) {
XWMHints *wmhints = XGetWMHints(server.display, win);
if (wmhints && wmhints->flags & XUrgencyHint) {
add_urgent(task);
}
XFree(wmhints);
}
if (!server.got_root_win)
server.root_win = RootWindow(server.display, server.screen);
}
}
void event_expose(XEvent *e)
{
Panel *panel;
panel = get_panel(e->xany.window);
if (!panel)
return;
// TODO : one panel_refresh per panel ?
panel_refresh = TRUE;
}
void event_configure_notify(XEvent *e)
{
Window win = e->xconfigure.window;
if (0) {
Task *task = task_get_task(win);
fprintf(stderr, "%s %d: win = %ld, task = %s\n", __FUNCTION__, __LINE__, win, task ? (task->title ? task->title : "??") : "null");
}
// change in root window (xrandr)
if (win == server.root_win) {
signal_pending = SIGUSR1;
return;
}
// 'win' is a trayer icon
TrayWindow *traywin;
GSList *l;
for (l = systray.list_icons; l; l = l->next) {
traywin = (TrayWindow *)l->data;
if (traywin->win == win) {
systray_reconfigure_event(traywin, e);
return;
}
}
// 'win' move in another monitor
if (num_panels > 1 || hide_task_diff_monitor) {
Task *task = task_get_task(win);
if (task) {
Panel *p = task->area.panel;
int monitor = get_window_monitor(win);
if ((hide_task_diff_monitor && p->monitor != monitor && task->area.on_screen) ||
(hide_task_diff_monitor && p->monitor == monitor && !task->area.on_screen) ||
(p->monitor != monitor && num_panels > 1)) {
remove_task(task);
task = add_task(win);
if (win == get_active_window()) {
set_task_state(task, TASK_ACTIVE);
active_task = task;
}
panel_refresh = TRUE;
}
}
}
if (server.viewports) {
Task *task = task_get_task(win);
if (task) {
int desktop = get_window_desktop(win);
if (task->desktop != desktop) {
update_task_desktop(task);
}
}
}
sort_taskbar_for_win(win);
}
const char *GetAtomName(Display *disp, Atom a)
{
if (a == None)
return "None";
else
return XGetAtomName(disp, a);
}
typedef struct Property {
unsigned char *data;
int format, nitems;
Atom type;
} Property;
// This fetches all the data from a property
struct Property read_property(Display *disp, Window w, Atom property)
{
Atom actual_type;
int actual_format;
unsigned long nitems;
unsigned long bytes_after;
unsigned char *ret = 0;
int read_bytes = 1024;
// Keep trying to read the property until there are no
// bytes unread.
do {
if (ret != 0)
XFree(ret);
XGetWindowProperty(disp,
w,
property,
0,
read_bytes,
False,
AnyPropertyType,
&actual_type,
&actual_format,
&nitems,
&bytes_after,
&ret);
read_bytes *= 2;
} while (bytes_after != 0);
fprintf(stderr, "DnD %s:%d: Property:\n", __FILE__, __LINE__);
fprintf(stderr, "DnD %s:%d: Actual type: %s\n", __FILE__, __LINE__, GetAtomName(disp, actual_type));
fprintf(stderr, "DnD %s:%d: Actual format: %d\n", __FILE__, __LINE__, actual_format);
fprintf(stderr, "DnD %s:%d: Number of items: %lu\n", __FILE__, __LINE__, nitems);
Property p;
p.data = ret;
p.format = actual_format;
p.nitems = nitems;
p.type = actual_type;
return p;
}
// This function takes a list of targets which can be converted to (atom_list, nitems)
// and a list of acceptable targets with prioritees (datatypes). It returns the highest
// entry in datatypes which is also in atom_list: ie it finds the best match.
Atom pick_target_from_list(Display *disp, Atom *atom_list, int nitems)
{
Atom to_be_requested = None;
int i;
for (i = 0; i < nitems; i++) {
const char *atom_name = GetAtomName(disp, atom_list[i]);
fprintf(stderr, "DnD %s:%d: Type %d = %s\n", __FILE__, __LINE__, i, atom_name);
// See if this data type is allowed and of higher priority (closer to zero)
// than the present one.
if (strcmp(atom_name, "STRING") == 0) {
to_be_requested = atom_list[i];
}
}
return to_be_requested;
}
// Finds the best target given up to three atoms provided (any can be None).
// Useful for part of the Xdnd protocol.
Atom pick_target_from_atoms(Display *disp, Atom t1, Atom t2, Atom t3)
{
Atom atoms[3];
int n = 0;
if (t1 != None)
atoms[n++] = t1;
if (t2 != None)
atoms[n++] = t2;
if (t3 != None)
atoms[n++] = t3;
return pick_target_from_list(disp, atoms, n);
}
// Finds the best target given a local copy of a property.
Atom pick_target_from_targets(Display *disp, Property p)
{
// The list of targets is a list of atoms, so it should have type XA_ATOM
// but it may have the type TARGETS instead.
if ((p.type != XA_ATOM && p.type != server.atom.TARGETS) || p.format != 32) {
// This would be really broken. Targets have to be an atom list
// and applications should support this. Nevertheless, some
// seem broken (MATLAB 7, for instance), so ask for STRING
// next instead as the lowest common denominator
return XA_STRING;
} else {
Atom *atom_list = (Atom *)p.data;
return pick_target_from_list(disp, atom_list, p.nitems);
}
}
void dnd_enter(XClientMessageEvent *e)
{
dnd_atom = None;
int more_than_3 = e->data.l[1] & 1;
dnd_source_window = e->data.l[0];
dnd_version = (e->data.l[1] >> 24);
fprintf(stderr, "DnD %s:%d: DnDEnter\n", __FILE__, __LINE__);
fprintf(stderr, "DnD %s:%d: DnDEnter. Supports > 3 types = %s\n", __FILE__, __LINE__, more_than_3 ? "yes" : "no");
fprintf(stderr, "DnD %s:%d: Protocol version = %d\n", __FILE__, __LINE__, dnd_version);
fprintf(stderr, "DnD %s:%d: Type 1 = %s\n", __FILE__, __LINE__, GetAtomName(server.display, e->data.l[2]));
fprintf(stderr, "DnD %s:%d: Type 2 = %s\n", __FILE__, __LINE__, GetAtomName(server.display, e->data.l[3]));
fprintf(stderr, "DnD %s:%d: Type 3 = %s\n", __FILE__, __LINE__, GetAtomName(server.display, e->data.l[4]));
// Query which conversions are available and pick the best
if (more_than_3) {
// Fetch the list of possible conversions
// Notice the similarity to TARGETS with paste.
Property p = read_property(server.display, dnd_source_window, server.atom.XdndTypeList);
dnd_atom = pick_target_from_targets(server.display, p);
XFree(p.data);
} else {
// Use the available list
dnd_atom = pick_target_from_atoms(server.display, e->data.l[2], e->data.l[3], e->data.l[4]);
}
fprintf(stderr, "DnD %s:%d: Requested type = %s\n", __FILE__, __LINE__, GetAtomName(server.display, dnd_atom));
}
void dnd_position(XClientMessageEvent *e)
{
dnd_target_window = e->window;
int accept = 0;
Panel *panel = get_panel(e->window);
int x, y, mapX, mapY;
Window child;
x = (e->data.l[2] >> 16) & 0xFFFF;
y = e->data.l[2] & 0xFFFF;
XTranslateCoordinates(server.display, server.root_win, e->window, x, y, &mapX, &mapY, &child);
Task *task = click_task(panel, mapX, mapY);
if (task) {
if (task->desktop != server.desktop)
change_desktop(task->desktop);
window_action(task, TOGGLE);
} else {
LauncherIcon *icon = click_launcher_icon(panel, mapX, mapY);
if (icon) {
accept = 1;
dnd_launcher_exec = icon->cmd;
} else {
dnd_launcher_exec = 0;
}
}
// send XdndStatus event to get more XdndPosition events
XClientMessageEvent se;
se.type = ClientMessage;
se.window = e->data.l[0];
se.message_type = server.atom.XdndStatus;
se.format = 32;
se.data.l[0] = e->window; // XID of the target window
se.data.l[1] = accept ? 1 : 0; // bit 0: accept drop bit 1: send XdndPosition events if inside rectangle
se.data.l[2] = 0; // Rectangle x,y for which no more XdndPosition events
se.data.l[3] = (1 << 16) | 1; // Rectangle w,h for which no more XdndPosition events
if (accept) {
se.data.l[4] = dnd_version >= 2 ? e->data.l[4] : server.atom.XdndActionCopy;
} else {
se.data.l[4] = None; // None = drop will not be accepted
}
XSendEvent(server.display, e->data.l[0], False, NoEventMask, (XEvent *)&se);
}
void dnd_drop(XClientMessageEvent *e)
{
if (dnd_target_window && dnd_launcher_exec) {
if (dnd_version >= 1) {
XConvertSelection(server.display,
server.atom.XdndSelection,
XA_STRING,
dnd_selection,
dnd_target_window,
e->data.l[2]);
} else {
XConvertSelection(server.display,
server.atom.XdndSelection,
XA_STRING,
dnd_selection,
dnd_target_window,
CurrentTime);
}
} else {
// The source is sending anyway, despite instructions to the contrary.
// So reply that we're not interested.
XClientMessageEvent m;
memset(&m, 0, sizeof(m));
m.type = ClientMessage;
m.display = e->display;
m.window = e->data.l[0];
m.message_type = server.atom.XdndFinished;
m.format = 32;
m.data.l[0] = dnd_target_window;
m.data.l[1] = 0;
m.data.l[2] = None; // Failed.
XSendEvent(server.display, e->data.l[0], False, NoEventMask, (XEvent *)&m);
}
}
int main(int argc, char *argv[])
{
start:
start_time = get_time();
init(argc, argv);
init_X11_pre_config();
if (!config_read()) {
fprintf(stderr, "Could not read config file.\n"
"Usage: tint2 [[-c] <config_file>]\n");
cleanup();
exit(1);
}
init_X11_post_config();
start_detect_compositor();
init_panel();
if (snapshot_path) {
get_snapshot(snapshot_path);
cleanup();
exit(0);
}
int damage_event, damage_error;
XDamageQueryExtension(server.display, &damage_event, &damage_error);
int x11_fd = ConnectionNumber(server.display);
XSync(server.display, False);
// XDND initialization
dnd_source_window = 0;
dnd_target_window = 0;
dnd_version = 0;
dnd_selection = XInternAtom(server.display, "PRIMARY", 0);
dnd_atom = None;
dnd_sent_request = 0;
dnd_launcher_exec = 0;
int ufd = uevent_init();
int hidden_dnd = 0;
while (1) {
if (panel_refresh) {
if (systray_profile)
fprintf(stderr, BLUE "[%f] %s:%d redrawing panel\n" RESET, profiling_get_time(), __FUNCTION__, __LINE__);
panel_refresh = FALSE;
for (int i = 0; i < num_panels; i++) {
Panel *panel = &panels[i];
if (panel->is_hidden) {
XCopyArea(server.display,
panel->hidden_pixmap,
panel->main_win,
server.gc,
0,
0,
panel->hidden_width,
panel->hidden_height,
0,
0);
XSetWindowBackgroundPixmap(server.display, panel->main_win, panel->hidden_pixmap);
} else {
if (panel->temp_pmap)
XFreePixmap(server.display, panel->temp_pmap);
panel->temp_pmap =
XCreatePixmap(server.display, server.root_win, panel->area.width, panel->area.height, server.depth);
render_panel(panel);
if (panel == (Panel *)systray.area.panel) {
if (refresh_systray && panel && !panel->is_hidden) {
refresh_systray = FALSE;
XSetWindowBackgroundPixmap(server.display, panel->main_win, panel->temp_pmap);
refresh_systray_icons();
}
}
XCopyArea(server.display,
panel->temp_pmap,
panel->main_win,
server.gc,
0,
0,
panel->area.width,
panel->area.height,
0,
0);
}
}
XFlush(server.display);
}
// Create a File Description Set containing x11_fd
fd_set fdset;
FD_ZERO(&fdset);
FD_SET(x11_fd, &fdset);
int maxfd = x11_fd;
if (sn_pipe_valid) {
FD_SET(sn_pipe[0], &fdset);
maxfd = maxfd < sn_pipe[0] ? sn_pipe[0] : maxfd;
}
for (GList *l = panel_config.execp_list; l; l = l->next) {
Execp *execp = (Execp *)l->data;
int fd = execp->backend->child_pipe;
if (fd > 0) {
FD_SET(fd, &fdset);
maxfd = maxfd < fd ? fd : maxfd;
}
}
if (ufd > 0) {
FD_SET(ufd, &fdset);
maxfd = maxfd < ufd ? ufd : maxfd;
}
update_next_timeout();
struct timeval *select_timeout = (next_timeout.tv_sec >= 0 && next_timeout.tv_usec >= 0) ? &next_timeout : NULL;
// Wait for X Event or a Timer
if (XPending(server.display) > 0 || select(maxfd + 1, &fdset, 0, 0, select_timeout) >= 0) {
uevent_handler();
if (sn_pipe_valid) {
char buffer[1];
while (read(sn_pipe[0], buffer, sizeof(buffer)) > 0) {
sigchld_handler_async();
}
}
for (GList *l = panel_config.execp_list; l; l = l->next) {
Execp *execp = (Execp *)l->data;
if (read_execp(execp)) {
GList *l_instance;
for (l_instance = execp->backend->instances; l_instance; l_instance = l_instance->next) {
Execp *instance = l_instance->data;
instance->area.resize_needed = TRUE;
panel_refresh = TRUE;
}
}
}
if (XPending(server.display) > 0) {
XEvent e;
XNextEvent(server.display, &e);
#if HAVE_SN
if (startup_notifications)
sn_display_process_event(server.sn_display, &e);
#endif // HAVE_SN
Panel *panel = get_panel(e.xany.window);
if (panel && panel_autohide) {
if (e.type == EnterNotify)
autohide_trigger_show(panel);
else if (e.type == LeaveNotify)
autohide_trigger_hide(panel);
if (panel->is_hidden) {
if (e.type == ClientMessage && e.xclient.message_type == server.atom.XdndPosition) {
hidden_dnd = 1;
autohide_show(panel);
} else
continue; // discard further processing of this event because the panel is not visible yet
} else if (hidden_dnd && e.type == ClientMessage &&
e.xclient.message_type == server.atom.XdndLeave) {
hidden_dnd = 0;
autohide_hide(panel);
}
}
switch (e.type) {
case ButtonPress: {
tooltip_hide(0);
event_button_press(&e);
Area *area = click_area(panel, e.xbutton.x, e.xbutton.y);
if (panel_config.mouse_effects)
mouse_over(area, 1);
break;
}
case ButtonRelease: {
event_button_release(&e);
Area *area = click_area(panel, e.xbutton.x, e.xbutton.y);
if (panel_config.mouse_effects)
mouse_over(area, 0);
break;
}
case MotionNotify: {
unsigned int button_mask = Button1Mask | Button2Mask | Button3Mask | Button4Mask | Button5Mask;
if (e.xmotion.state & button_mask)
event_button_motion_notify(&e);
Area *area = click_area(panel, e.xmotion.x, e.xmotion.y);
if (area->_get_tooltip_text)
tooltip_trigger_show(area, panel, &e);
else
tooltip_trigger_hide();
if (panel_config.mouse_effects)
mouse_over(area, e.xmotion.state & button_mask);
break;
}
case LeaveNotify:
tooltip_trigger_hide();
if (panel_config.mouse_effects)
mouse_out();
break;
case Expose:
event_expose(&e);
break;
case PropertyNotify:
event_property_notify(&e);
break;
case ConfigureNotify:
event_configure_notify(&e);
break;
case ConfigureRequest:
// 'win' is a trayer icon
for (GSList *it = systray.list_icons; it; it = g_slist_next(it)) {
TrayWindow *traywin = (TrayWindow *)it->data;
if (traywin->win == e.xany.window) {
systray_reconfigure_event(traywin, &e);
break;
}
}
break;
case ResizeRequest:
// 'win' is a trayer icon
for (GSList *it = systray.list_icons; it; it = g_slist_next(it)) {
TrayWindow *traywin = (TrayWindow *)it->data;
if (traywin->win == e.xany.window) {
systray_resize_request_event(traywin, &e);
break;
}
}
break;
case ReparentNotify: {
if (!systray_enabled)
break;
Panel *systray_panel = (Panel *)systray.area.panel;
if (e.xany.window == systray_panel->main_win) // don't care
break;
for (GSList *it = systray.list_icons; it; it = g_slist_next(it)) {
TrayWindow *traywin = (TrayWindow *)it->data;
if (traywin->win == e.xreparent.window) {
if (traywin->parent == e.xreparent.parent) {
embed_icon(traywin);
} else {
remove_icon(traywin);
}
break;
}
}
break;
}
case UnmapNotify:
break;
case DestroyNotify:
if (e.xany.window == server.composite_manager) {
// Stop real_transparency
fprintf(stderr, "Detected compositor shutdown, restarting tint2...\n");
signal_pending = SIGUSR1;
break;
}
if (e.xany.window == g_tooltip.window || !systray_enabled)
break;
for (GSList *it = systray.list_icons; it; it = g_slist_next(it)) {
if (((TrayWindow *)it->data)->win == e.xany.window) {
systray_destroy_event((TrayWindow *)it->data);
break;
}
}
break;
case ClientMessage: {
XClientMessageEvent *ev = &e.xclient;
if (ev->data.l[1] == server.atom._NET_WM_CM_S0) {
if (ev->data.l[2] == None)
// Stop real_transparency
signal_pending = SIGUSR1;
else
// Start real_transparency
signal_pending = SIGUSR1;
}
if (systray_enabled && e.xclient.message_type == server.atom._NET_SYSTEM_TRAY_OPCODE &&
e.xclient.format == 32 && e.xclient.window == net_sel_win) {
net_message(&e.xclient);
} else if (e.xclient.message_type == server.atom.XdndEnter) {
dnd_enter(&e.xclient);
} else if (e.xclient.message_type == server.atom.XdndPosition) {
dnd_position(&e.xclient);
} else if (e.xclient.message_type == server.atom.XdndDrop) {
dnd_drop(&e.xclient);
}
break;
}
case SelectionNotify: {
Atom target = e.xselection.target;
fprintf(stderr, "DnD %s:%d: A selection notify has arrived!\n", __FILE__, __LINE__);
fprintf(stderr, "DnD %s:%d: Requestor = %lu\n", __FILE__, __LINE__, e.xselectionrequest.requestor);
fprintf(stderr,
"DnD %s:%d: Selection atom = %s\n",
__FILE__,
__LINE__,
GetAtomName(server.display, e.xselection.selection));
fprintf(stderr,
"DnD %s:%d: Target atom = %s\n",
__FILE__,
__LINE__,
GetAtomName(server.display, target));
fprintf(stderr,
"DnD %s:%d: Property atom = %s\n",
__FILE__,
__LINE__,
GetAtomName(server.display, e.xselection.property));
if (e.xselection.property != None && dnd_launcher_exec) {
Property prop = read_property(server.display, dnd_target_window, dnd_selection);
// If we're being given a list of targets (possible conversions)
if (target == server.atom.TARGETS && !dnd_sent_request) {
dnd_sent_request = 1;
dnd_atom = pick_target_from_targets(server.display, prop);
if (dnd_atom == None) {
fprintf(stderr, "No matching datatypes.\n");
} else {
// Request the data type we are able to select
fprintf(stderr, "Now requsting type %s", GetAtomName(server.display, dnd_atom));
XConvertSelection(server.display,
dnd_selection,
dnd_atom,
dnd_selection,
dnd_target_window,
CurrentTime);
}
} else if (target == dnd_atom) {
// Dump the binary data
fprintf(stderr, "DnD %s:%d: Data begins:\n", __FILE__, __LINE__);
fprintf(stderr, "--------\n");
for (int i = 0; i < prop.nitems * prop.format / 8; i++)
fprintf(stderr, "%c", ((char *)prop.data)[i]);
fprintf(stderr, "--------\n");
int cmd_length = 0;
cmd_length += 1; // (
cmd_length += strlen(dnd_launcher_exec) + 1; // exec + space
cmd_length += 1; // open double quotes
for (int i = 0; i < prop.nitems * prop.format / 8; i++) {
char c = ((char *)prop.data)[i];
if (c == '\n') {
if (i < prop.nitems * prop.format / 8 - 1) {
cmd_length += 3; // close double quotes, space, open double quotes
}
} else if (c == '\r') {
// Nothing to do
} else {
cmd_length += 1; // 1 character
if (c == '`' || c == '$' || c == '\\') {
cmd_length += 1; // escape with one backslash
}
}
}
cmd_length += 1; // close double quotes
cmd_length += 2; // &)
cmd_length += 1; // terminator
char *cmd = calloc(cmd_length, 1);
cmd[0] = '\0';
strcat(cmd, "(");
strcat(cmd, dnd_launcher_exec);
strcat(cmd, " \"");
for (int i = 0; i < prop.nitems * prop.format / 8; i++) {
char c = ((char *)prop.data)[i];
if (c == '\n') {
if (i < prop.nitems * prop.format / 8 - 1) {
strcat(cmd, "\" \"");
}
} else if (c == '\r') {
// Nothing to do
} else {
if (c == '`' || c == '$' || c == '\\') {
strcat(cmd, "\\");
}
char sc[2];
sc[0] = c;
sc[1] = '\0';
strcat(cmd, sc);
}
}
strcat(cmd, "\"");
strcat(cmd, "&)");
fprintf(stderr, "DnD %s:%d: Running command: %s\n", __FILE__, __LINE__, cmd);
tint_exec(cmd);
free(cmd);
// Reply OK.
XClientMessageEvent m;
memset(&m, 0, sizeof(m));
m.type = ClientMessage;
m.display = server.display;
m.window = dnd_source_window;
m.message_type = server.atom.XdndFinished;
m.format = 32;
m.data.l[0] = dnd_target_window;
m.data.l[1] = 1;
m.data.l[2] = server.atom.XdndActionCopy; // We only ever copy.
XSendEvent(server.display, dnd_source_window, False, NoEventMask, (XEvent *)&m);
XSync(server.display, False);
}
XFree(prop.data);
}
break;
}
default:
if (e.type == XDamageNotify + damage_event) {
XDamageNotifyEvent *de = (XDamageNotifyEvent *)&e;
for (GSList *l = systray.list_icons; l; l = l->next) {
TrayWindow *traywin = (TrayWindow *)l->data;
if (traywin->parent == de->drawable) {
systray_render_icon(traywin);
break;
}
}
}
}
}
}
callback_timeout_expired();
if (signal_pending) {
cleanup();
if (signal_pending == SIGUSR1) {
// restart tint2
// SIGUSR1 used when : user's signal, composite manager stop/start or xrandr
goto start;
} else {
// SIGINT, SIGTERM, SIGHUP
exit(0);
}
}
}
}
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