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Add new event handling

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This commit is contained in:
Dave Davenport 2015-07-28 22:22:18 +02:00
parent b3a77589eb
commit 93c01ccbd5
5 changed files with 235 additions and 65 deletions
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4
include/rofi.h
View file

@ -300,4 +300,8 @@ struct _Switcher
#define color_blue_bold "\033[1;34m"
#define color_magenta_bold "\033[1;35m"
#define color_cyan_bold "\033[1;36m"
void show_error_message ( const char *msg, int markup );
#endif

44
source/helper.c
View file

@ -148,11 +148,7 @@ int helper_parse_setup ( char * string, char ***output, int *length, ... )
if ( error ) {
char *msg = g_strdup_printf ( "Failed to parse: '%s'\nError: '%s'", string,
error->message );
#ifdef error_dialog
error_dialog ( msg );
#else
fputs ( msg, stderr );
#endif
error_dialog ( msg, FALSE );
g_free ( msg );
// print error.
g_error_free ( error );
@ -396,11 +392,7 @@ int execute_generator ( const char * cmd )
if ( error != NULL ) {
char *msg = g_strdup_printf ( "Failed to execute: '%s'\nError: '%s'", cmd,
error->message );
#ifdef error_dialog
error_dialog ( msg );
#else
fputs ( msg, stderr );
#endif
error_dialog ( msg, FALSE );
g_free ( msg );
// print error.
g_error_free ( error );
@ -464,23 +456,37 @@ void config_sanity_check ( )
"Please see the manpage: %s -help for the correct syntax.", stored_argv[0] );
exit ( EXIT_FAILURE );
}
int found_error = FALSE;
GString *msg = g_string_new ( "<big><b>The configuration failed to validate:</b></big>\n" );
if ( config.element_height < 1 ) {
fprintf ( stderr, "config.element_height is invalid. It needs to be atleast 1 line high.\n" );
exit ( 1 );
g_string_append_printf ( msg, "\t<b>config.element_height</b>=%d is invalid. An element needs to be atleast 1 line high.\n",
config.element_height );
config.element_height = 1;
found_error = TRUE;
}
if ( config.menu_columns == 0 ) {
fprintf ( stderr, "config.menu_columns is invalid. You need at least one visible column.\n" );
exit ( 1 );
g_string_append_printf ( msg, "\t<b>config.menu_columns</b>=%d is invalid. You need at least one visible column.\n",
config.menu_columns );
config.menu_columns = 1;
found_error = TRUE;
}
if ( config.menu_width == 0 ) {
fprintf ( stderr, "config.menu_width is invalid. You cannot have a window with no width.\n" );
exit ( 1 );
show_error_message ( "<b>config.menu_width</b>=0 is invalid. You cannot have a window with no width.", TRUE );
config.menu_columns = 50;
found_error = TRUE;
}
if ( !( config.location >= WL_CENTER && config.location <= WL_WEST ) ) {
fprintf ( stderr, "config.location is invalid. ( %d >= %d >= %d) does not hold.\n",
WL_WEST, config.location, WL_CENTER );
exit ( 1 );
g_string_append_printf ( msg, "\t<b>config.location</b>=%d is invalid. Value should be between %d and %d.\n",
config.location, WL_CENTER, WL_WEST );
config.location = WL_CENTER;
found_error = 1;
}
if ( found_error ) {
g_string_append ( msg, "Please update your configuration." );
show_error_message ( msg->str, TRUE );
}
g_string_free ( msg, TRUE );
// If alternative row is not set, copy the normal background color.
if ( config.menu_bg_alt == NULL ) {
config.menu_bg_alt = config.menu_bg;

211
source/rofi.c
View file

@ -1483,31 +1483,28 @@ static int run_dmenu ()
XFreeColormap ( display, map );
map = None;
}
// Release the window.
release_keyboard ( display );
if ( main_window != None ) {
XUnmapWindow ( display, main_window );
XDestroyWindow ( display, main_window );
main_window = None;
XFreeGC ( display, gc );
gc = NULL;
}
// Cleanup pid file.
if ( pidfile ) {
unlink ( pidfile );
}
return ret_state;
}
static void run_switcher ( int do_fork, SwitcherMode mode )
static void run_switcher ( SwitcherMode mode )
{
// we fork because it's technically possible to have multiple window
// lists up at once on a zaphod multihead X setup.
// this also happens to isolate the Xft font stuff in a child process
// that gets cleaned up every time. That library shows some valgrind
// strangeness...
if ( do_fork == TRUE ) {
if ( fork () ) {
return;
}
display = XOpenDisplay ( display_str );
XSync ( display, True );
}
// Create pid file to avoid multiple instances.
create_pid_file ( pidfile );
// Create the colormap and the main visual.
create_visual_and_colormap ( display );
// Because of the above fork, we want to do this here.
// Make sure this is isolated to its own thread.
textbox_setup ( &vinfo, map );
// Otherwise check if requested mode is enabled.
char *input = NULL;
@ -1548,13 +1545,23 @@ static void run_switcher ( int do_fork, SwitcherMode mode )
// Cleanup font setup.
textbox_cleanup ( );
// Release the window.
release_keyboard ( display );
if ( main_window != None ) {
XUnmapWindow ( display, main_window );
XDestroyWindow ( display, main_window );
main_window = None;
XFreeGC ( display, gc );
gc = NULL;
}
if ( map != None ) {
XFreeColormap ( display, map );
map = None;
}
if ( do_fork == TRUE ) {
exit ( EXIT_SUCCESS );
// Cleanup pid file.
if ( pidfile ) {
unlink ( pidfile );
}
}
@ -1568,7 +1575,7 @@ static void handle_keypress ( XEvent *ev )
KeySym key = XkbKeycodeToKeysym ( display, ev->xkey.keycode, 0, 0 );
index = locate_switcher ( key, ev->xkey.state );
if ( index >= 0 ) {
run_switcher ( TRUE, index );
run_switcher ( index );
}
else {
fprintf ( stderr, "Warning: Unhandled keypress in global keyhandler, keycode = %u mask = %u\n", ev->xkey.keycode, ev->xkey.state );
@ -1604,10 +1611,7 @@ static void cleanup ()
XCloseDisplay ( display );
}
}
// Cleanup pid file.
if ( pidfile ) {
unlink ( pidfile );
}
// Cleaning up memory allocated by the Xresources file.
config_xresource_free ();
@ -1716,7 +1720,7 @@ static inline void load_configuration_dynamic ( Display *display )
}
static void show_error_message ( const char *msg, int markup )
void show_error_message ( const char *msg, int markup )
{
// Create pid file
create_pid_file ( pidfile );
@ -1730,6 +1734,79 @@ static void show_error_message ( const char *msg, int markup )
XFreeColormap ( display, map );
map = None;
}
// Cleanup font setup.
textbox_cleanup ( );
// Release the window.
release_keyboard ( display );
if ( main_window != None ) {
XUnmapWindow ( display, main_window );
XDestroyWindow ( display, main_window );
main_window = None;
XFreeGC ( display, gc );
gc = NULL;
}
if ( map != None ) {
XFreeColormap ( display, map );
map = None;
}
// Cleanup pid file.
if ( pidfile ) {
unlink ( pidfile );
}
}
static void * pthread_signal_process ( void *arg )
{
int pfd = *( (int *) arg );
// Create same mask again.
sigset_t set;
sigemptyset ( &set );
sigaddset ( &set, SIGHUP );
sigaddset ( &set, SIGINT );
sigaddset ( &set, SIGUSR1 );
// loop forever.
while ( 1 ) {
siginfo_t info;
int sig = sigwaitinfo ( &set, &info );
if ( sig < 0 ) {
perror ( "sigwaitinfo failed" );
}
else {
// Send message to main thread.
if ( sig == SIGHUP ) {
write ( pfd, "c", 1 );
}
if ( sig == SIGUSR1 ) {
write ( pfd, "i", 1 );
}
else if ( sig == SIGINT ) {
write ( pfd, "q", 1 );
// Close my end and exit.
return NULL;
}
}
}
}
static void reload_configuration ()
{
if ( find_arg ( "-no-config" ) < 0 ) {
// We need to open a new connection to X11, otherwise we get old
// configuration
Display *display = XOpenDisplay ( display_str );
if ( display ) {
load_configuration ( display );
load_configuration_dynamic ( display );
// Sanity check
config_sanity_check ( );
parse_keys_abe ();
XCloseDisplay ( display );
}
}
}
int main ( int argc, char *argv[] )
@ -1816,6 +1893,15 @@ int main ( int argc, char *argv[] )
// Reload for dynamic part.
load_configuration_dynamic ( display );
}
// Set up X interaction.
const struct sigaction sigchld_action = {
.sa_handler = catch_exit
};
sigaction ( SIGCHLD, &sigchld_action, NULL );
x11_setup ( display );
// Sanity check
config_sanity_check ( );
// Dump.
@ -1826,14 +1912,6 @@ int main ( int argc, char *argv[] )
// Parse the keybindings.
parse_keys_abe ();
// Set up X interaction.
const struct sigaction sigchld_action = {
.sa_handler = catch_exit
};
sigaction ( SIGCHLD, &sigchld_action, NULL );
x11_setup ( display );
char *msg = NULL;
if ( find_arg_str ( "-e", &( msg ) ) ) {
int markup = FALSE;
@ -1866,7 +1944,7 @@ int main ( int argc, char *argv[] )
if ( find_arg_str ( "-show", &sname ) == TRUE ) {
int index = switcher_get ( sname );
if ( index >= 0 ) {
run_switcher ( FALSE, index );
run_switcher ( index );
}
else {
fprintf ( stderr, "The %s switcher has not been enabled\n", sname );
@ -1909,12 +1987,44 @@ int main ( int argc, char *argv[] )
}
}
sigset_t set;
// Create a pipe to communicate between signal thread an main thread.
int pfds[2];
pipe ( pfds );
// Block all HUP signals.
// In this and other child (they inherit mask)
sigemptyset ( &set );
sigaddset ( &set, SIGHUP );
sigaddset ( &set, SIGINT );
sigaddset ( &set, SIGUSR1 );
sigprocmask ( SIG_BLOCK, &set, NULL );
// Create signal handler process.
GThread *pid_signal_proc = g_thread_new (
"signal_process",
pthread_signal_process,
(void *) &( pfds[1] ) );
// Application Main loop.
// This listens in the background for any events on the Xserver
// catching global key presses.
// It also listens from messages from the signal process.
XSelectInput ( display, DefaultRootWindow ( display ), KeyPressMask );
XFlush ( display );
int x11_fd = ConnectionNumber ( display );
for (;; ) {
XEvent ev;
fd_set in_fds;
// Create a File Description Set containing x11_fd
FD_ZERO ( &in_fds );
FD_SET ( x11_fd, &in_fds );
FD_SET ( pfds[0], &in_fds );
// Wait for X Event or a Timer
if ( select ( MAX ( x11_fd, pfds[0] ) + 1, &in_fds, 0, 0, NULL ) >= 0 ) {
if ( FD_ISSET ( x11_fd, &in_fds ) ) {
// X11 produced an event. Consume them.
XEvent ev;
while ( XPending ( display ) ) {
// block and wait for something
XNextEvent ( display, &ev );
// If we get an event that does not belong to a window:
@ -1928,6 +2038,35 @@ int main ( int argc, char *argv[] )
}
}
}
if ( FD_ISSET ( pfds[0], &in_fds ) ) {
// The signal thread send us a message. Process it.
char c;
read ( pfds[0], &c, 1 );
// Reload configuration.
if ( c == 'c' ) {
fprintf ( stdout, "Reload configuration\n" );
reload_configuration ();
}
// Got message to quit.
else if ( c == 'q' ) {
// Break out of loop.
break;
}
// Got message to print info
else if ( c == 'i' ) {
xresource_dump ();
}
}
}
}
// Join the signal process thread. (at this point it should have exited).
// this also unrefs (de-allocs) the GThread object.
g_thread_join ( pid_signal_proc );
// Close pipe
close ( pfds[0] );
close ( pfds[1] );
fprintf ( stdout, "Quit from daemon mode.\n" );
}
return EXIT_SUCCESS;
}

11
test/helper-test.c
View file

@ -10,6 +10,17 @@ static int test = 0;
assert ( a ); \
printf ( "Test %i passed (%s)\n", ++test, # a ); \
}
void error_dialog ( const char *msg, G_GNUC_UNUSED int markup )
{
fputs ( msg, stderr );
}
void show_error_message ( const char *msg, int markup )
{
error_dialog ( msg, markup );
}
int main ( int argc, char ** argv )
{
cmd_set_arguments ( argc, argv );

10
test/textbox-test.c
View file

@ -24,6 +24,16 @@ Display *display = NULL;
Colormap map = None;
XVisualInfo vinfo;
void error_dialog ( const char *msg, G_GNUC_UNUSED int markup )
{
fputs ( msg, stderr );
}
void show_error_message ( const char *msg, int markup )
{
error_dialog ( msg, markup );
}
static unsigned int color_get ( Display *display, const char *const name )
{
XColor color;