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Add comments to ya_exec.c

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This commit is contained in:
geommer 2016-04-25 07:16:35 +02:00
parent a2b59877a0
commit d309ca4a72
1 changed files with 26 additions and 1 deletions
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27
src/ya_exec.c
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@ -12,6 +12,9 @@ char conf_file[CFILELEN];
static const char * const yashell = "/bin/sh";
#ifdef YA_INTERNAL_EWMH
//This function is used for YA_INT_WORKSPACE internal block
//Copy the current workspace string name from blk->internal->option[0] to blk->buf
//Names are separated by space
inline static void ya_copy_buf_from_index(ya_block_t *blk, uint32_t cur_desktop) {
char *cur = blk->internal->option[0];
uint32_t index =0;
@ -37,6 +40,10 @@ inline static void ya_copy_buf_from_index(ya_block_t *blk, uint32_t cur_desktop)
sprintf(blk->buf, "%u", cur_desktop+1);
}
/*
* similar to any ya_exec function in this file, this function is used to obtain text buffer and
* draw it. However, this function is called upon X events.
*/
inline static void ya_exec_intern_ewmh_blk(ya_block_t *blk) {
switch(blk->internal->index) {
case YA_INT_TITLE: {
@ -272,6 +279,9 @@ static void ya_process_path(char *cpath) {
}
}
/*
* Initialize RandR and obtain current monitors
*/
static int ya_init_randr() {
xcb_randr_get_screen_resources_current_reply_t *res_reply;
res_reply = xcb_randr_get_screen_resources_current_reply(ya.c,
@ -336,6 +346,9 @@ void ya_process_opt(int argc, char *argv[]) {
}
}
/*
* Initialize yabar
*/
void ya_init() {
signal(SIGTERM, ya_sighandler);
signal(SIGINT, ya_sighandler);
@ -378,6 +391,9 @@ void ya_init() {
ya_config_parse();
}
/*
* After yabar initialization, we create a thread for each block.
*/
void ya_execute() {
ya_bar_t *curbar;
ya_block_t *curblk;
@ -403,6 +419,7 @@ void ya_execute() {
curbar->curblk[align] = curblk;
for(;curblk; curblk = curblk->next_blk) {
#ifdef YA_INTERNAL_EWMH
// BLKA_INTERN_X_EV blocks don't have threads! they are inovoked when events occur.
if(!(curblk->attr & BLKA_INTERN_X_EV))
pthread_create(&curblk->thread, NULL, ya_exec, (void *) curblk);
#else
@ -414,9 +431,13 @@ void ya_execute() {
}
}
/*
* Invoke process on button press.
*/
inline void ya_exec_button(ya_block_t * blk, xcb_button_press_event_t *eb) {
if (fork() == 0) {
#ifdef YA_ENV_VARS
//Setup environment variables.
char blkx[6], blky[6], blkw[6];
snprintf(blkx, 6, "%d", eb->root_x - eb->event_x + blk->shift);
if (blk->bar->position == YA_TOP)
@ -439,6 +460,9 @@ inline void ya_exec_button(ya_block_t * blk, xcb_button_press_event_t *eb) {
}
#ifdef YA_INTERNAL_EWMH
/*
* Handle property notify events, called from ya_main when such events occur.
*/
void ya_handle_prop_notify(xcb_property_notify_event_t *ep) {
uint32_t no_ev_val = XCB_EVENT_MASK_NO_EVENT;
uint32_t pr_ev_val = XCB_EVENT_MASK_PROPERTY_CHANGE;
@ -460,13 +484,14 @@ void ya_handle_prop_notify(xcb_property_notify_event_t *ep) {
#endif //YA_NOWIN_COL
}
else if(ya.curwin==XCB_NONE && ya.lstwin==XCB_NONE) {
//Don't exit, used when switch between two empty workspaces
//Don't return, used when switch between two empty workspaces
}
else {
return;
}
}
else if ((ep->atom == ya.ewmh->_NET_WM_NAME) || (ep->atom == ya.ewmh->_NET_WM_VISIBLE_NAME)) {
//Same window, but title changed. Therefore don't return.
}
else {
return;