Commit: 10dbe966e120632efaae4cbd5c1336fc163e5c07
Author: Bastien Montagne
Date:   Tue Aug 11 12:11:48 2015 +0200
Branches: master
https://developer.blender.org/rB10dbe966e120632efaae4cbd5c1336fc163e5c07

Add WM_event_add/remove_timer_notifier() helpers.

This basically does the 'timer' part of Jobs system: it sends a given notifier 
on every timer step.

This is needed for background tasks (not full-fledged jobs, lighter BLI_tasks 
based) that want to update UI
(like for up-comming new thumbnail handling in filebrowser).

===================================================================

M       source/blender/windowmanager/WM_api.h
M       source/blender/windowmanager/intern/wm_window.c
M       source/blender/windowmanager/wm_event_types.h

===================================================================

diff --git a/source/blender/windowmanager/WM_api.h 
b/source/blender/windowmanager/WM_api.h
index 28e24e4..2742657 100644
--- a/source/blender/windowmanager/WM_api.h
+++ b/source/blender/windowmanager/WM_api.h
@@ -208,7 +208,9 @@ void wm_event_init_from_window(struct wmWindow *win, struct 
wmEvent *event);
 
                        /* at maximum, every timestep seconds it triggers 
event_type events */
 struct wmTimer *WM_event_add_timer(struct wmWindowManager *wm, struct wmWindow 
*win, int event_type, double timestep);
+struct wmTimer *WM_event_add_timer_notifier(struct wmWindowManager *wm, struct 
wmWindow *win, unsigned int type, double timestep);
 void           WM_event_remove_timer(struct wmWindowManager *wm, struct 
wmWindow *win, struct wmTimer *timer);
+void           WM_event_remove_timer_notifier(struct wmWindowManager *wm, 
struct wmWindow *win, struct wmTimer *timer);
 void        WM_event_timer_sleep(struct wmWindowManager *wm, struct wmWindow 
*win, struct wmTimer *timer, bool do_sleep);
 
                /* operator api, default callbacks */
diff --git a/source/blender/windowmanager/intern/wm_window.c 
b/source/blender/windowmanager/intern/wm_window.c
index c538724..d0ecec6 100644
--- a/source/blender/windowmanager/intern/wm_window.c
+++ b/source/blender/windowmanager/intern/wm_window.c
@@ -1166,6 +1166,8 @@ static int wm_window_timer(const bContext *C)
                                        wm_jobs_timer(C, wm, wt);
                                else if (wt->event_type == TIMERAUTOSAVE)
                                        wm_autosave_timer(C, wm, wt);
+                               else if (wt->event_type == TIMERNOTIFIER)
+                                       
WM_main_add_notifier(GET_UINT_FROM_POINTER(wt->customdata), NULL);
                                else if (win) {
                                        wmEvent event;
                                        wm_event_init_from_window(win, &event);
@@ -1285,6 +1287,23 @@ wmTimer *WM_event_add_timer(wmWindowManager *wm, 
wmWindow *win, int event_type,
        return wt;
 }
 
+wmTimer *WM_event_add_timer_notifier(wmWindowManager *wm, wmWindow *win, 
unsigned int type, double timestep)
+{
+       wmTimer *wt = MEM_callocN(sizeof(wmTimer), "window timer");
+
+       wt->event_type = TIMERNOTIFIER;
+       wt->ltime = PIL_check_seconds_timer();
+       wt->ntime = wt->ltime + timestep;
+       wt->stime = wt->ltime;
+       wt->timestep = timestep;
+       wt->win = win;
+       wt->customdata = SET_UINT_IN_POINTER(type);
+
+       BLI_addtail(&wm->timers, wt);
+
+       return wt;
+}
+
 void WM_event_remove_timer(wmWindowManager *wm, wmWindow *UNUSED(win), wmTimer 
*timer)
 {
        wmTimer *wt;
@@ -1317,6 +1336,12 @@ void WM_event_remove_timer(wmWindowManager *wm, wmWindow 
*UNUSED(win), wmTimer *
        }
 }
 
+void WM_event_remove_timer_notifier(wmWindowManager *wm, wmWindow *win, 
wmTimer *timer)
+{
+       timer->customdata = NULL;
+       WM_event_remove_timer(wm, win, timer);
+}
+
 /* ******************* clipboard **************** */
 
 static char *wm_clipboard_text_get_ex(bool selection, int *r_len,
diff --git a/source/blender/windowmanager/wm_event_types.h 
b/source/blender/windowmanager/wm_event_types.h
index ecc29de..390e769 100644
--- a/source/blender/windowmanager/wm_event_types.h
+++ b/source/blender/windowmanager/wm_event_types.h
@@ -303,6 +303,7 @@ enum {
        TIMERAUTOSAVE         = 0x0115,  /* timer event, autosave */
        TIMERREPORT           = 0x0116,  /* timer event, reports */
        TIMERREGION           = 0x0117,  /* timer event, region slide in/out */
+       TIMERNOTIFIER         = 0x0118,  /* timer event, notifier sender */
        TIMERF                = 0x011F,  /* last timer */
 
        /* Tweak, gestures: 0x500x, 0x501x */

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