2010/11/29 Tiago Falcão <ti...@profusion.mobi>:
> Some time ago, we created a system to propagate events across the
> Elementary widget tree, done mostly (and for now, only) to propagate
> key events all the way to the top widget (usually, the window). It was
> needed because the normal propagation Evas does works on Smart
> Objects, but the Elementary works doesn't allow to make a smart member
> out of every child of a widget.
>
> This system was internal, but we began to expose it, so the user can
> hook his own callbacks to listen for key events at the window level
> (or anything below), regardless of what widget is focused. This is
> helpful for things like key bindings on an application. The user
> callbacks will be called in case no widget in the tree processed the
> event.
So this will work only for key events, right? not mouse or others?
If yes then the name:
elm_widget_event_callback_add
is wrong, should be something like:
elm_widget_key_event_callback_add
DaveMDS
>
> On Mon, Nov 29, 2010 at 2:35 PM, Dave Andreoli <d...@gurumeditation.it> wrote:
>> 2010/11/29 Enlightenment SVN <no-re...@enlightenment.org>:
>>> Log:
>>> Event Callback
>>
>> Can you please explain better? This will connect every signal?
>>
>> Guys please, write better log, I can't lost 10 minutes per mail
>> to see what you changed
>>
>> DaveMDS
>>
>>> Author: tiago
>>> Date: 2010-11-29 05:56:30 -0800 (Mon, 29 Nov 2010)
>>> New Revision: 55061
>>>
>>> Modified:
>>> trunk/TMP/st/elementary/src/bin/test_focus.c
>>> trunk/TMP/st/elementary/src/lib/Elementary.h.in
>>> trunk/TMP/st/elementary/src/lib/elm_main.c
>>> trunk/TMP/st/elementary/src/lib/elm_widget.c
>>> trunk/TMP/st/elementary/src/lib/elm_widget.h
>>>
>>> Modified: trunk/TMP/st/elementary/src/bin/test_focus.c
>>> ===================================================================
>>> --- trunk/TMP/st/elementary/src/bin/test_focus.c 2010-11-29 13:17:33
>>> UTC (rev 55060)
>>> +++ trunk/TMP/st/elementary/src/bin/test_focus.c 2010-11-29 13:56:30
>>> UTC (rev 55061)
>>> @@ -5,6 +5,23 @@
>>> #endif
>>> #ifndef ELM_LIB_QUICKLAUNCH
>>>
>>> +static Eina_Bool
>>> +_event(void *data __UNUSED__, Evas_Object *obj __UNUSED__, Evas_Object
>>> *src __UNUSED__, Evas_Callback_Type type, void *event_info)
>>> +{
>>> + const char *key;
>>> + if (type == EVAS_CALLBACK_KEY_DOWN)
>>> + printf ("Key Down:");
>>> + else if (type == EVAS_CALLBACK_KEY_UP)
>>> + printf ("Key Up:");
>>> + else
>>> + return EINA_FALSE;
>>> + Evas_Event_Key_Down *ev = event_info;
>>> + printf("%s\n", ev->key);
>>> +
>>> + ev->event_flags |= EVAS_EVENT_FLAG_ON_HOLD;
>>> + return EINA_TRUE;
>>> +}
>>> +
>>> static void
>>> _on_key_down(void *data __UNUSED__, Evas *e __UNUSED__, Evas_Object *obj
>>> __UNUSED__, void *einfo __UNUSED__)
>>> {
>>> @@ -31,6 +48,7 @@
>>> elm_win_title_set(win, "Focus");
>>> elm_win_focus_highlight_enabled_set(win, EINA_TRUE);
>>> evas_object_resize(win, 800, 600);
>>> + elm_object_event_callback_add(win, _event, NULL);
>>> elm_win_autodel_set(win, EINA_TRUE);
>>> my_show(win);
>>>
>>> @@ -126,8 +144,10 @@
>>> evas_object_size_hint_align_set(bt, EVAS_HINT_FILL,
>>> EVAS_HINT_FILL);
>>> evas_object_size_hint_weight_set(bt, 0.0, 0.0);
>>> + elm_object_event_callback_add(bt, _event, NULL);
>>> elm_scroller_content_set(sc, bt);
>>> my_show(bt);
>>> + elm_object_event_callback_del(bt, _event, NULL);
>>> }
>>> }
>>>
>>>
>>> Modified: trunk/TMP/st/elementary/src/lib/Elementary.h.in
>>> ===================================================================
>>> --- trunk/TMP/st/elementary/src/lib/Elementary.h.in 2010-11-29 13:17:33
>>> UTC (rev 55060)
>>> +++ trunk/TMP/st/elementary/src/lib/Elementary.h.in 2010-11-29 13:56:30
>>> UTC (rev 55061)
>>> @@ -215,8 +215,9 @@
>>> * set on Elm_List_Item, then it is of this type.
>>> */
>>> typedef Evas_Object *(*Elm_Tooltip_Item_Content_Cb) (void *data,
>>> Evas_Object *obj, void *item);
>>> -
>>> -
>>> +
>>> + typedef Eina_Bool (*Elm_Event_Cb) (void *data, Evas_Object *obj,
>>> Evas_Object *src, Evas_Callback_Type type, void *event_info);
>>> +
>>> #ifndef ELM_LIB_QUICKLAUNCH
>>> #define ELM_MAIN() int main(int argc, char **argv) {elm_init(argc, argv);
>>> return elm_main(argc, argv);}
>>> #else
>>> @@ -368,6 +369,9 @@
>>> EAPI void elm_object_signal_callback_add(Evas_Object *obj, const
>>> char *emission, const char *source, void (*func) (void *data, Evas_Object
>>> *o, const char *emission, const char *source), void *data);
>>> EAPI void *elm_object_signal_callback_del(Evas_Object *obj, const
>>> char *emission, const char *source, void (*func) (void *data, Evas_Object
>>> *o, const char *emission, const char *source));
>>>
>>> + EAPI void elm_object_event_callback_add(Evas_Object *obj,
>>> Elm_Event_Cb func, const void *data);
>>> + EAPI void *elm_object_event_callback_del(Evas_Object *obj,
>>> Elm_Event_Cb func, const void *data);
>>> +
>>> EAPI void elm_coords_finger_size_adjust(int times_w, Evas_Coord
>>> *w, int times_h, Evas_Coord *h);
>>>
>>> EAPI double elm_longpress_timeout_get(void);
>>>
>>> Modified: trunk/TMP/st/elementary/src/lib/elm_main.c
>>> ===================================================================
>>> --- trunk/TMP/st/elementary/src/lib/elm_main.c 2010-11-29 13:17:33 UTC
>>> (rev 55060)
>>> +++ trunk/TMP/st/elementary/src/lib/elm_main.c 2010-11-29 13:56:30 UTC
>>> (rev 55061)
>>> @@ -2651,8 +2651,52 @@
>>> return elm_widget_signal_callback_del(obj, emission, source, func);
>>> }
>>>
>>> +/**
>>> + * Add a callback for a event emitted by widget or their children.
>>> + *
>>> + * This function connects a callback function to any key_down key_up event
>>> + * emitted by the @p obj or their children.
>>> + * This only will be called if no other callback has consumed the event.
>>> + * If you want consume the event, and no other get it, func should return
>>> + * EINA_TRUE and put EVAS_EVENT_FLAG_ON_HOLD in event_flags.
>>> + *
>>> + * @warning Accept duplicated callback addition.
>>> + *
>>> + * @param obj The object
>>> + * @param func The callback function to be executed when the event is
>>> + * emitted.
>>> + * @param data Data to pass in to the callback function.
>>> + * @ingroup General
>>> + */
>>> +EAPI void
>>> +elm_object_event_callback_add(Evas_Object *obj, Elm_Event_Cb func, const
>>> void *data)
>>> +{
>>> + elm_widget_event_callback_add(obj, func, data);
>>> +}
>>>
>>> +/**
>>> + * Remove a event callback from an widget.
>>> + *
>>> + * This function removes a callback, previoulsy attached to event emission
>>> + * by the @p obj.
>>> + * The parameters func and data must match exactly those passed to
>>> + * a previous call to elm_object_event_callback_add(). The data pointer
>>> that
>>> + * was passed to this call will be returned.
>>> + *
>>> + * @param obj The object
>>> + * @param func The callback function to be executed when the event is
>>> + * emitted.
>>> + * @param data Data to pass in to the callback function.
>>> + * @return The data pointer
>>> + * @ingroup General
>>> + */
>>> +EAPI void *
>>> +elm_object_event_callback_del(Evas_Object *obj, Elm_Event_Cb func, const
>>> void *data)
>>> +{
>>> + return elm_widget_event_callback_del(obj, func, data);
>>> +}
>>>
>>> +
>>> /**
>>> * @defgroup Debug Debug
>>> */
>>>
>>> Modified: trunk/TMP/st/elementary/src/lib/elm_widget.c
>>> ===================================================================
>>> --- trunk/TMP/st/elementary/src/lib/elm_widget.c 2010-11-29 13:17:33
>>> UTC (rev 55060)
>>> +++ trunk/TMP/st/elementary/src/lib/elm_widget.c 2010-11-29 13:56:30
>>> UTC (rev 55061)
>>> @@ -12,6 +12,7 @@
>>>
>>> typedef struct _Smart_Data Smart_Data;
>>> typedef struct _Edje_Signal_Data Edje_Signal_Data;
>>> +typedef struct _Elm_Event_Cb_Data Elm_Event_Cb_Data;
>>>
>>> struct _Smart_Data
>>> {
>>> @@ -77,6 +78,7 @@
>>> Eina_Bool disabled : 1;
>>>
>>> Eina_List *focus_chain;
>>> + Eina_List *event_cb;
>>> };
>>>
>>> struct _Edje_Signal_Data
>>> @@ -88,6 +90,11 @@
>>> void *data;
>>> };
>>>
>>> +struct _Elm_Event_Cb_Data {
>>> + Elm_Event_Cb func;
>>> + const void *data;
>>> +};
>>> +
>>> /* local subsystem functions */
>>> static void _smart_reconfigure(Smart_Data *sd);
>>> static void _smart_add(Evas_Object *obj);
>>> @@ -238,13 +245,7 @@
>>> break;
>>> }
>>>
>>> - if ((event_flags) && ((*event_flags) & EVAS_EVENT_FLAG_ON_HOLD))
>>> - return;
>>> -
>>> - if ((sd->event_func) && (sd->event_func(obj, obj, type, event_info)))
>>> - return;
>>> -
>>> - elm_widget_parent_event_propagate(obj, type, event_info, event_flags);
>>> + elm_widget_event_propagate(obj, type, event_info, event_flags);
>>> }
>>>
>>> static void
>>> @@ -897,11 +898,40 @@
>>> return parent;
>>> }
>>>
>>> +EAPI void
>>> +elm_widget_event_callback_add(Evas_Object *obj, Elm_Event_Cb func, const
>>> void *data)
>>> +{
>>> + API_ENTRY return;
>>> + Elm_Event_Cb_Data *ecb = ELM_NEW(Elm_Event_Cb_Data);
>>> + ecb->func = func;
>>> + ecb->data = data;
>>> + sd->event_cb = eina_list_append(sd->event_cb, ecb);
>>> +}
>>> +
>>> +EAPI void *
>>> +elm_widget_event_callback_del(Evas_Object *obj, Elm_Event_Cb func, const
>>> void *data)
>>> +{
>>> + API_ENTRY return NULL;
>>> + Eina_List *l;
>>> + Elm_Event_Cb_Data *ecd;
>>> + EINA_LIST_FOREACH(sd->event_cb, l, ecd)
>>> + if ((ecd->func == func) && (ecd->data == data))
>>> + {
>>> + free(ecd);
>>> + sd->event_cb = eina_list_remove_list(sd->event_cb, l);
>>> + return (void *)data;
>>> + }
>>> + return NULL;
>>> +}
>>> +
>>> EAPI Eina_Bool
>>> -elm_widget_parent_event_propagate(Evas_Object *obj, Evas_Callback_Type
>>> type, void *event_info, Evas_Event_Flags *event_flags)
>>> +elm_widget_event_propagate(Evas_Object *obj, Evas_Callback_Type type, void
>>> *event_info, Evas_Event_Flags *event_flags)
>>> {
>>> - API_ENTRY return EINA_FALSE;
>>> - Evas_Object *parent = sd->parent_obj;
>>> + API_ENTRY return EINA_FALSE; //TODO reduce.
>>> + if (!_elm_widget_is(obj)) return EINA_FALSE;
>>> + Evas_Object *parent = obj;
>>> + Elm_Event_Cb_Data *ecd;
>>> + Eina_List *l, *l_prev;
>>>
>>> while (parent &&
>>> (!(event_flags && ((*event_flags) & EVAS_EVENT_FLAG_ON_HOLD))))
>>> @@ -909,8 +939,16 @@
>>> sd = evas_object_smart_data_get(parent);
>>> if ((!sd) || (!_elm_widget_is(obj)))
>>> return EINA_FALSE; //Not Elm Widget
>>> +
>>> if (sd->event_func && (sd->event_func(parent, obj, type,
>>> event_info)))
>>> return EINA_TRUE;
>>> +
>>> + EINA_LIST_FOREACH_SAFE(sd->event_cb, l, l_prev, ecd)
>>> + {
>>> + if (ecd->func((void *)ecd->data, parent, obj, type,
>>> event_info) ||
>>> + (event_flags && ((*event_flags) &
>>> EVAS_EVENT_FLAG_ON_HOLD)))
>>> + return EINA_TRUE;
>>> + }
>>> parent = sd->parent_obj;
>>> }
>>>
>>> @@ -2499,7 +2537,7 @@
>>> Edje_Signal_Data *esd;
>>>
>>> INTERNAL_ENTRY;
>>> -
>>> +
>>> if (sd->del_pre_func) sd->del_pre_func(obj);
>>> if (sd->resize_obj)
>>> {
>>> @@ -2531,6 +2569,7 @@
>>> eina_stringshare_del(esd->source);
>>> free(esd);
>>> }
>>> + eina_list_free(sd->event_cb); /* should be empty anyway */
>>> if (sd->del_func) sd->del_func(obj);
>>> if (sd->style) eina_stringshare_del(sd->style);
>>> if (sd->type) eina_stringshare_del(sd->type);
>>>
>>> Modified: trunk/TMP/st/elementary/src/lib/elm_widget.h
>>> ===================================================================
>>> --- trunk/TMP/st/elementary/src/lib/elm_widget.h 2010-11-29 13:17:33
>>> UTC (rev 55060)
>>> +++ trunk/TMP/st/elementary/src/lib/elm_widget.h 2010-11-29 13:56:30
>>> UTC (rev 55061)
>>> @@ -247,7 +247,9 @@
>>> EAPI Evas_Object *elm_widget_top_get(const Evas_Object *obj);
>>> EAPI Eina_Bool elm_widget_is(const Evas_Object *obj);
>>> EAPI Evas_Object *elm_widget_parent_widget_get(const Evas_Object *obj);
>>> -EAPI Eina_Bool elm_widget_parent_event_propagate(Evas_Object *obj,
>>> Evas_Callback_Type type, void *event_info, Evas_Event_Flags *event_flags);
>>> +EAPI void elm_widget_event_callback_add(Evas_Object *obj,
>>> Elm_Event_Cb func, const void *data);
>>> +EAPI void *elm_widget_event_callback_del(Evas_Object *obj,
>>> Elm_Event_Cb func, const void *data);
>>> +EAPI Eina_Bool elm_widget_event_propagate(Evas_Object *obj,
>>> Evas_Callback_Type type, void *event_info, Evas_Event_Flags *event_flags);
>>> EAPI void elm_widget_focus_custom_chain_set(Evas_Object *obj,
>>> Eina_List *objs);
>>> EAPI void elm_widget_focus_custom_chain_unset(Evas_Object
>>> *obj);
>>> EAPI const Eina_List *elm_widget_focus_custom_chain_get(const Evas_Object
>>> *obj);
>>>
>>>
>>> ------------------------------------------------------------------------------
>>> Increase Visibility of Your 3D Game App & Earn a Chance To Win $500!
>>> Tap into the largest installed PC base & get more eyes on your game by
>>> optimizing for Intel(R) Graphics Technology. Get started today with the
>>> Intel(R) Software Partner Program. Five $500 cash prizes are up for grabs.
>>> http://p.sf.net/sfu/intelisp-dev2dev
>>> _______________________________________________
>>> enlightenment-svn mailing list
>>> enlightenment-...@lists.sourceforge.net
>>> https://lists.sourceforge.net/lists/listinfo/enlightenment-svn
>>>
>>
>> ------------------------------------------------------------------------------
>> Increase Visibility of Your 3D Game App & Earn a Chance To Win $500!
>> Tap into the largest installed PC base & get more eyes on your game by
>> optimizing for Intel(R) Graphics Technology. Get started today with the
>> Intel(R) Software Partner Program. Five $500 cash prizes are up for grabs.
>> http://p.sf.net/sfu/intelisp-dev2dev
>> _______________________________________________
>> enlightenment-devel mailing list
>> enlightenment-devel@lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/enlightenment-devel
>>
>
>
>
> --
> Tiago Rezende Campos Falcão
> Developer @ ProFUSION Embedded Systems
>
------------------------------------------------------------------------------
Increase Visibility of Your 3D Game App & Earn a Chance To Win $500!
Tap into the largest installed PC base & get more eyes on your game by
optimizing for Intel(R) Graphics Technology. Get started today with the
Intel(R) Software Partner Program. Five $500 cash prizes are up for grabs.
http://p.sf.net/sfu/intelisp-dev2dev
_______________________________________________
enlightenment-devel mailing list
enlightenment-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/enlightenment-devel
