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Change keyboard grabbing behaviour, if you fail, continue running and try in background to get them.

This commit is contained in:
Dave Davenport 2017-01-06 11:00:27 +01:00
parent 129d96928a
commit 051be0cfe6
4 changed files with 52 additions and 15 deletions

View file

@ -123,21 +123,23 @@ void release_pointer ( void );
/**
* @param w xcb_window_t we want to grab keyboard on.
* @param iters Number of retries.
*
* Grab keyboard.
*
* @return 1 when keyboard is grabbed, 0 not.
*/
int take_keyboard ( xcb_window_t w );
int take_keyboard ( xcb_window_t w, int iters );
/**
* @param w xcb_window_t we want to grab mouse on.
* @param iters Number of retries.
*
* Grab mouse.
*
* @return 1 when mouse is grabbed, 0 not.
*/
int take_pointer ( xcb_window_t w );
int take_pointer ( xcb_window_t w, int iters );
/**
* @param mask The mask to canonilize

View file

@ -576,6 +576,36 @@ static void error_trap_pop ( G_GNUC_UNUSED SnDisplay *display, xcb_connection_t
--error_trap_depth;
}
unsigned int lazy_grab_retry_count_kb = 0;
unsigned int lazy_grab_retry_count_pt = 0;
static gboolean lazy_grab_pointer ( G_GNUC_UNUSED gpointer data )
{
// After 5 sec.
if ( lazy_grab_retry_count_kb > (5*1000)) {
fprintf(stderr, "Failed to grab keyboard after %u times. Giving up.\n", lazy_grab_retry_count_kb);
g_main_loop_quit ( main_loop );
return G_SOURCE_REMOVE;
}
if ( take_pointer ( xcb_stuff_get_root_window ( xcb ), 0 ) ){
return G_SOURCE_REMOVE;
}
lazy_grab_retry_count_kb++;
return G_SOURCE_CONTINUE;
}
static gboolean lazy_grab_keyboard ( G_GNUC_UNUSED gpointer data )
{
// After 5 sec.
if ( lazy_grab_retry_count_pt > (5*1000)) {
fprintf(stderr, "Failed to grab pointer after %u times. Giving up.\n", lazy_grab_retry_count_pt);
return G_SOURCE_REMOVE;
}
if ( take_keyboard ( xcb_stuff_get_root_window ( xcb), 0 ) ){
return G_SOURCE_REMOVE;
}
lazy_grab_retry_count_pt++;
return G_SOURCE_CONTINUE;
}
static gboolean startup ( G_GNUC_UNUSED gpointer data )
{
TICK_N ( "Startup" );
@ -595,13 +625,12 @@ static gboolean startup ( G_GNUC_UNUSED gpointer data )
// We grab this using the rootwindow (as dmenu does it).
// this seems to result in the smallest delay for most people.
if ( ( window_flags & MENU_NORMAL_WINDOW ) == 0 ) {
int has_keyboard = take_keyboard ( xcb_stuff_get_root_window ( xcb ) );
if ( !has_keyboard ) {
fprintf ( stderr, "Failed to grab keyboard, even after %d uS.", 500 * 1000 );
g_main_loop_quit ( main_loop );
return G_SOURCE_REMOVE;
if ( !take_keyboard ( xcb_stuff_get_root_window ( xcb), 0) ){
g_timeout_add ( 1,lazy_grab_keyboard, NULL);
}
if ( !take_pointer ( xcb_stuff_get_root_window ( xcb ), 0 )) {
g_timeout_add ( 1,lazy_grab_pointer, NULL);
}
take_pointer ( xcb_stuff_get_root_window ( xcb ) );
}
TICK_N ( "Grab keyboard" );
__create_window ( window_flags );

View file

@ -1266,7 +1266,7 @@ void rofi_view_itterrate ( RofiViewState *state, xcb_generic_event_t *ev, xkb_st
}
case XCB_FOCUS_IN:
if ( ( CacheState.flags & MENU_NORMAL_WINDOW ) == 0 ) {
take_keyboard ( CacheState.main_window );
take_keyboard ( CacheState.main_window, 1);
}
break;
case XCB_FOCUS_OUT:

View file

@ -515,9 +515,10 @@ int monitor_active ( workarea *mon )
monitor_dimensions ( 0, 0, mon );
return FALSE;
}
int take_pointer ( xcb_window_t w )
int take_pointer ( xcb_window_t w, int iters )
{
for ( int i = 0; i < 500; i++ ) {
int i = 0;
while ( TRUE ) {
if ( xcb_connection_has_error ( xcb->connection ) ) {
fprintf ( stderr, "Connection has error\n" );
exit ( EXIT_FAILURE );
@ -532,14 +533,17 @@ int take_pointer ( xcb_window_t w )
}
free ( r );
}
if ( (++i) > iters ){
break;
}
usleep ( 1000 );
}
fprintf ( stderr, "Failed to grab pointer.\n" );
return 0;
}
int take_keyboard ( xcb_window_t w )
int take_keyboard ( xcb_window_t w, int iters )
{
for ( int i = 0; i < 500; i++ ) {
int i = 0;
while ( TRUE ) {
if ( xcb_connection_has_error ( xcb->connection ) ) {
fprintf ( stderr, "Connection has error\n" );
exit ( EXIT_FAILURE );
@ -555,9 +559,11 @@ int take_keyboard ( xcb_window_t w )
}
free ( r );
}
if ( (++i) > iters ){
break;
}
usleep ( 1000 );
}
return 0;
}