34 static void group_notify_cb(lv_observer_t * observer, lv_subject_t * subject);
37 static void obj_flag_observer_cb(lv_observer_t * observer, lv_subject_t * subject);
38 static void obj_state_observer_cb(lv_observer_t * observer, lv_subject_t * subject);
42     static void label_text_observer_cb(lv_observer_t * observer, lv_subject_t * subject);
47     static void arc_value_observer_cb(lv_observer_t * observer, lv_subject_t * subject);
52     static void slider_value_observer_cb(lv_observer_t * observer, lv_subject_t * subject);
57     static void roller_value_observer_cb(lv_observer_t * observer, lv_subject_t * subject);
62     static void dropdown_value_observer_cb(lv_observer_t * observer, lv_subject_t * subject);
291     lv_observer_t * observer = lv_ll_get_head(&subject->subs_ll);  in lv_subject_deinit()  local
292     while(observer) {  in lv_subject_deinit()
293         lv_observer_t * observer_next = lv_ll_get_next(&subject->subs_ll, observer);  in lv_subject_deinit()
295         if(observer->for_obj) {  in lv_subject_deinit()
296             lv_obj_remove_event_cb(observer->target, unsubscribe_on_delete_cb);  in lv_subject_deinit()
297             lv_obj_remove_event_cb_with_user_data(observer->target, NULL, subject);  in lv_subject_deinit()
300         lv_observer_remove(observer);  in lv_subject_deinit()
301         observer = observer_next;  in lv_subject_deinit()
321     lv_observer_t * observer = lv_subject_add_observer_obj(subject, cb, NULL, user_data);  in lv_subject_add_observer()  local
322     if(observer == NULL) return NULL;  in lv_subject_add_observer()
324     observer->for_obj = 0;  in lv_subject_add_observer()
325     return observer;  in lv_subject_add_observer()
336     lv_observer_t * observer = lv_ll_ins_tail(&(subject->subs_ll));  in lv_subject_add_observer_obj()  local
337     LV_ASSERT_MALLOC(observer);  in lv_subject_add_observer_obj()
338     if(observer == NULL) return NULL;  in lv_subject_add_observer_obj()
340     lv_memzero(observer, sizeof(*observer));  in lv_subject_add_observer_obj()
342     observer->subject = subject;  in lv_subject_add_observer_obj()
343     observer->cb = cb;  in lv_subject_add_observer_obj()
344     observer->user_data = user_data;  in lv_subject_add_observer_obj()
345     observer->target = obj;  in lv_subject_add_observer_obj()
346     observer->for_obj = 1;  in lv_subject_add_observer_obj()
349         lv_obj_add_event_cb(obj, unsubscribe_on_delete_cb, LV_EVENT_DELETE, observer);  in lv_subject_add_observer_obj()
353     if(observer->cb) observer->cb(observer, subject);  in lv_subject_add_observer_obj()
355     return observer;  in lv_subject_add_observer_obj()
366     lv_observer_t * observer = lv_ll_ins_tail(&(subject->subs_ll));  in lv_subject_add_observer_with_target()  local
367     LV_ASSERT_MALLOC(observer);  in lv_subject_add_observer_with_target()
368     if(observer == NULL) return NULL;  in lv_subject_add_observer_with_target()
370     lv_memzero(observer, sizeof(*observer));  in lv_subject_add_observer_with_target()
372     observer->subject = subject;  in lv_subject_add_observer_with_target()
373     observer->cb = cb;  in lv_subject_add_observer_with_target()
374     observer->user_data = user_data;  in lv_subject_add_observer_with_target()
375     observer->target = target;  in lv_subject_add_observer_with_target()
378     if(observer->cb) observer->cb(observer, subject);  in lv_subject_add_observer_with_target()
380     return observer;  in lv_subject_add_observer_with_target()
384 void lv_observer_remove(lv_observer_t * observer)  in lv_observer_remove()  argument
386     LV_ASSERT_NULL(observer);  in lv_observer_remove()
388     observer->subject->notify_restart_query = 1;  in lv_observer_remove()
390     lv_ll_remove(&(observer->subject->subs_ll), observer);  in lv_observer_remove()
392     if(observer->auto_free_user_data) {  in lv_observer_remove()
393         lv_free(observer->user_data);  in lv_observer_remove()
395     lv_free(observer);  in lv_observer_remove()
405             lv_observer_t * observer = event_dsc->user_data;  in lv_obj_remove_from_subject()  local
406             if(subject == NULL || subject == observer->subject) {  in lv_obj_remove_from_subject()
407                 lv_observer_remove(observer);  in lv_obj_remove_from_subject()
414 void * lv_observer_get_target(lv_observer_t * observer)  in lv_observer_get_target()  argument
416     LV_ASSERT_NULL(observer);  in lv_observer_get_target()
418     return observer->target;  in lv_observer_get_target()
425     lv_observer_t * observer;  in lv_subject_notify()  local
426     LV_LL_READ(&(subject->subs_ll), observer) {  in lv_subject_notify()
427         observer->notified = 0;  in lv_subject_notify()
432         LV_LL_READ(&(subject->subs_ll), observer) {  in lv_subject_notify()
433             if(observer->cb && observer->notified == 0) {  in lv_subject_notify()
434                 observer->cb(observer, subject);  in lv_subject_notify()
436                 observer->notified = 1;  in lv_subject_notify()
494 …lv_observer_t * observer = lv_subject_add_observer_obj(subject, label_text_observer_cb, obj, (void…  in lv_label_bind_text()  local
495     return observer;  in lv_label_bind_text()
512 … lv_observer_t * observer = lv_subject_add_observer_obj(subject, arc_value_observer_cb, obj, NULL);  in lv_arc_bind_value()  local
513     return observer;  in lv_arc_bind_value()
530 …lv_observer_t * observer = lv_subject_add_observer_obj(subject, slider_value_observer_cb, obj, NUL…  in lv_slider_bind_value()  local
531     return observer;  in lv_slider_bind_value()
549 …lv_observer_t * observer = lv_subject_add_observer_obj(subject, roller_value_observer_cb, obj, NUL…  in lv_roller_bind_value()  local
550     return observer;  in lv_roller_bind_value()
569 …lv_observer_t * observer = lv_subject_add_observer_obj(subject, dropdown_value_observer_cb, obj, N…  in lv_dropdown_bind_value()  local
570     return observer;  in lv_dropdown_bind_value()
576 lv_obj_t * lv_observer_get_target_obj(lv_observer_t * observer)  in lv_observer_get_target_obj()  argument
578     return (lv_obj_t *)lv_observer_get_target(observer);  in lv_observer_get_target_obj()
581 void * lv_observer_get_user_data(const lv_observer_t * observer)  in lv_observer_get_user_data()  argument
583     LV_ASSERT_NULL(observer);  in lv_observer_get_user_data()
585     return observer->user_data;  in lv_observer_get_user_data()
592 static void group_notify_cb(lv_observer_t * observer, lv_subject_t * subject)  in group_notify_cb()  argument
595     lv_subject_t * subject_group = observer->user_data;  in group_notify_cb()
601     lv_observer_t * observer = lv_event_get_user_data(e);  in unsubscribe_on_delete_cb()  local
602     lv_observer_remove(observer);  in unsubscribe_on_delete_cb()
631 static void obj_flag_observer_cb(lv_observer_t * observer, lv_subject_t * subject)  in obj_flag_observer_cb()  argument
633     flag_and_cond_t * p = observer->user_data;  in obj_flag_observer_cb()
639         lv_obj_add_flag(observer->target, p->flag);  in obj_flag_observer_cb()
642         lv_obj_remove_flag(observer->target, p->flag);  in obj_flag_observer_cb()
646 static void obj_state_observer_cb(lv_observer_t * observer, lv_subject_t * subject)  in obj_state_observer_cb()  argument
648     flag_and_cond_t * p = observer->user_data;  in obj_state_observer_cb()
654         lv_obj_add_state(observer->target, p->flag);  in obj_state_observer_cb()
657         lv_obj_remove_state(observer->target, p->flag);  in obj_state_observer_cb()
671 static void label_text_observer_cb(lv_observer_t * observer, lv_subject_t * subject)  in label_text_observer_cb()  argument
673     const char * fmt = observer->user_data;  in label_text_observer_cb()
676         lv_label_set_text(observer->target, subject->value.pointer);  in label_text_observer_cb()
681                 lv_label_set_text_fmt(observer->target, fmt, subject->value.num);  in label_text_observer_cb()
685                 lv_label_set_text_fmt(observer->target, fmt, subject->value.pointer);  in label_text_observer_cb()
705 static void arc_value_observer_cb(lv_observer_t * observer, lv_subject_t * subject)  in arc_value_observer_cb()  argument
707     lv_arc_set_value(observer->target, subject->value.num);  in arc_value_observer_cb()
722 static void slider_value_observer_cb(lv_observer_t * observer, lv_subject_t * subject)  in slider_value_observer_cb()  argument
724     lv_slider_set_value(observer->target, subject->value.num, LV_ANIM_OFF);  in slider_value_observer_cb()
739 static void roller_value_observer_cb(lv_observer_t * observer, lv_subject_t * subject)  in roller_value_observer_cb()  argument
741     if((int32_t)lv_roller_get_selected(observer->target) != subject->value.num) {  in roller_value_observer_cb()
742         lv_roller_set_selected(observer->target, subject->value.num, LV_ANIM_OFF);  in roller_value_observer_cb()
758 static void dropdown_value_observer_cb(lv_observer_t * observer, lv_subject_t * subject)  in dropdown_value_observer_cb()  argument
760     lv_dropdown_set_selected(observer->target, subject->value.num, LV_ANIM_OFF);  in dropdown_value_observer_cb()