I find this quite useless... what's the use case for that?
On Thu, Sep 12, 2013 at 11:24 AM, ChunEon Park - Enlightenment Git
<no-re...@enlightenment.org> wrote:
> hermet pushed a commit to branch master.
>
> commit 1dcd32068b6690c4b474dd79aa82fa34e566eae6
> Author: ChunEon Park <her...@hermet.pe.kr>
> Date: Thu Sep 12 23:24:02 2013 +0900
>
> elementary - introduces 3 apis elm_object_item_track/untrack/track_get().
> ---
> ChangeLog | 5 ++
> NEWS | 1 +
> src/examples/Makefile.am | 6 ++-
> src/lib/elm_main.c | 19 +++++++
> src/lib/elm_object_item.h | 73 ++++++++++++++++++++++++++
> src/lib/elm_widget.c | 129
> ++++++++++++++++++++++++++++++++++++++++++++++
> src/lib/elm_widget.h | 5 ++
> 7 files changed, 236 insertions(+), 2 deletions(-)
>
> diff --git a/ChangeLog b/ChangeLog
> index 973c714..4eced13 100644
> --- a/ChangeLog
> +++ b/ChangeLog
> @@ -1611,3 +1611,8 @@
> 2013-09-12 Ryuan Choi (ryuan)
>
> * elc_fileselector : Added "selected,invalid" smart callbacks.
> +
> +2013-09-12 ChunEon Park (Hermet)
> +
> + * elm_object_item : Introduces new APIs, elm_object_item_track(),
> + elm_object_item_untrack(), elm_object_item_track_get().
> diff --git a/NEWS b/NEWS
> index 029433f..78c1369 100644
> --- a/NEWS
> +++ b/NEWS
> @@ -89,6 +89,7 @@ Additions:
> * Add elm_table_child_get().
> * Add support for flip focus direction.
> * Add "selected,invalid" smart callback for fileselector.
> + * elm_object_item : Introduces new APIs, elm_object_item_track(),
> elm_object_item_untrack(), elm_object_item_track_get().
>
> Improvements:
>
> diff --git a/src/examples/Makefile.am b/src/examples/Makefile.am
> index 07b29de..32beda8 100644
> --- a/src/examples/Makefile.am
> +++ b/src/examples/Makefile.am
> @@ -148,7 +148,8 @@ transit_example_03.c \
> transit_example_04.c \
> web_example_01.c \
> web_example_02.c \
> -win_example.c
> +win_example.c \
> +track_example_01.c
>
> .edc.edj:
> $(EDJE_CC) $(EDJE_FLAGS) $< $@
> @@ -286,7 +287,8 @@ transit_example_03 \
> transit_example_04 \
> web_example_01 \
> web_example_02 \
> -win_example
> +win_example \
> +track_example_01.c
>
> if ELEMENTARY_WINDOWS_BUILD
> efl_thread_1_SOURCES = efl_thread_win32_1.c
> diff --git a/src/lib/elm_main.c b/src/lib/elm_main.c
> index 17654c6..f3c9a1f 100644
> --- a/src/lib/elm_main.c
> +++ b/src/lib/elm_main.c
> @@ -1899,3 +1899,22 @@ elm_object_item_cursor_engine_only_get(const
> Elm_Object_Item *it)
> {
> return elm_widget_item_cursor_engine_only_get(it);
> }
> +
> +EAPI Evas_Object *
> +elm_object_item_track(Elm_Object_Item *it)
> +{
> + return elm_widget_item_track((Elm_Widget_Item *)it);
> +}
> +
> +void
> +elm_object_item_untrack(Elm_Object_Item *it)
> +{
> + elm_widget_item_untrack((Elm_Widget_Item *)it);
> +}
> +
> +int
> +elm_object_item_track_get(const Elm_Object_Item *it)
> +{
> + return elm_widget_item_track_get((Elm_Widget_Item *)it);
> +}
> +
> diff --git a/src/lib/elm_object_item.h b/src/lib/elm_object_item.h
> index 8a0ccde..cce8f8d 100644
> --- a/src/lib/elm_object_item.h
> +++ b/src/lib/elm_object_item.h
> @@ -652,3 +652,76 @@ EAPI void
> elm_object_item_cursor_engine_only_set(Elm_Obj
> * @ingroup General
> */
> EAPI Eina_Bool
> elm_object_item_cursor_engine_only_get(const Elm_Object_Item *it);
> +
> +/**
> + * This returns track object of the item.
> + *
> + * @param it The Elementary Object Item to be tracked.
> + * @return The track object.
> + *
> + * @note This gets a rectangle object that represents the object item's
> internal
> + * object. If you wanna check the geometry, visibility of the item, you
> + * can call the evas apis such as evas_object_geometry_get(),
> + * evas_object_visible_get() to the track object. Note that all of the
> + * widget items may/may not have the internal object so this api may
> + * return @c NULL if the widget item doesn't have it. Additionally, the
> + * widget item is managed/controlled by the widget, the widget item
> could
> + * be changed(moved, resized even deleted) anytime by it's own widget's
> + * decision. So please dont' change the track object as well as don't
> + * keep the track object in your side as possible but get the track
> object
> + * at the moment you need to refer. Otherwise, you need to add some
> + * callbacks to the track object to track it's attributes changes.
> + *
> + * @warning After use the track object, please call the
> + * elm_object_item_untrack() paired to elm_object_item_track()
> + * definitely to free the track object properly. Don't delete the
> + * track object.
> + *
> + * @see elm_object_item_untrack()
> + * @see elm_object_item_track_get()
> + *
> + * @since 1.8
> + *
> + * @ingroup General
> + */
> +EAPI Evas_Object *elm_object_item_track(Elm_Object_Item *it);
> +
> +/**
> + * This retrieve the track object of the item.
> + *
> + * @param it The Elementary Object Item that returned track object.
> + *
> + * @note This retrieves the track object that was returned from
> + * elm_object_item_track().
> + *
> + * @see elm_object_item_track()
> + * @see elm_object_item_track_get()
> + *
> + * @since 1.8
> + *
> + * @ingroup General
> + */
> +EAPI void elm_object_item_untrack(Elm_Object_Item
> *it);
> +
> +/**
> + * Get the track object reference count.
> + *
> + * @param it The Elementary Object Item that returned track object.
> + *
> + * @note This gets the reference count for the track object. Whenever you
> call
> + * the elm_object_item_track(), the reference count will be increased
> by
> + * one. Likely the referece count will be decreased again when you call
> + * the elm_object_item_untrack(). Unless the reference count reaches to
> + * zero, the track object won't be deleted. So please be sure to call
> + * elm_object_item_untrack() paired to the elm_object_item_track() call
> + * count.
> + *
> + * @see elm_object_item_track()
> + * @see elm_object_item_track_get()
> + *
> + * @since 1.8
> + *
> + * @ingroup General
> + */
> +EAPI int elm_object_item_track_get(const
> Elm_Object_Item *it);
> +
> diff --git a/src/lib/elm_widget.c b/src/lib/elm_widget.c
> index c94f894..1aa2bbc 100644
> --- a/src/lib/elm_widget.c
> +++ b/src/lib/elm_widget.c
> @@ -4867,6 +4867,68 @@ _elm_widget_orientation_set(Eo *obj __UNUSED__, void
> *_pd, va_list *list)
> if (ret) *ret = EINA_TRUE;
> }
>
> +static void
> +_track_obj_del(void *data, Evas *e, Evas_Object *obj, void *event_info);
> +
> +static void
> +_track_obj_update(Evas_Object *track, Evas_Object *obj)
> +{
> + //Geometry
> + Evas_Coord x, y, w, h;
> + evas_object_geometry_get(obj, &x, &y, &w, &h);
> + evas_object_move(track, x, y);
> + evas_object_resize(track, w, h);
> +
> + //Visibility
> + if (evas_object_visible_get(obj)) evas_object_show(track);
> + else evas_object_hide(track);
> +}
> +
> +static void
> +_track_obj_view_update(void *data, Evas *e EINA_UNUSED, Evas_Object *obj,
> + void *event_info EINA_UNUSED)
> +{
> + Evas_Object *track = data;
> + _track_obj_update(track, obj);
> +}
> +
> +static void
> +_track_obj_view_del(void *data, Evas *e EINA_UNUSED,
> + Evas_Object *obj EINA_UNUSED, void *event_info
> EINA_UNUSED)
> +{
> + Elm_Widget_Item *item = data;
> +
> + while (evas_object_ref_get(item->track_obj) > 0)
> + evas_object_unref(item->track_obj);
> +
> + evas_object_event_callback_del(item->track_obj, EVAS_CALLBACK_DEL,
> + _track_obj_del);
> + evas_object_del(item->track_obj);
> + item->track_obj = NULL;
> +}
> +
> +static void
> +_track_obj_del(void *data, Evas *e EINA_UNUSED,
> + Evas_Object *obj EINA_UNUSED, void *event_info
> EINA_UNUSED)
> +{
> + Elm_Widget_Item *item = data;
> + item->track_obj = NULL;
> +
> + if (!item->view) return;
> +
> + evas_object_event_callback_del(item->view, EVAS_CALLBACK_RESIZE,
> + _track_obj_view_update);
> + evas_object_event_callback_del(item->view, EVAS_CALLBACK_MOVE,
> + _track_obj_view_update);
> + evas_object_event_callback_del(item->view, EVAS_CALLBACK_SHOW,
> + _track_obj_view_update);
> + evas_object_event_callback_del(item->view, EVAS_CALLBACK_HIDE,
> + _track_obj_view_update);
> + evas_object_event_callback_del(item->view, EVAS_CALLBACK_DEL,
> + _track_obj_view_del);
> +}
> +
> +
> /**
> * @internal
> *
> @@ -4923,6 +4985,13 @@ _elm_widget_item_free(Elm_Widget_Item *item)
> if (item->access_info)
> eina_stringshare_del(item->access_info);
>
> + if (item->track_obj)
> + {
> + evas_object_event_callback_del(item->track_obj, EVAS_CALLBACK_DEL,
> + _track_obj_del);
> + evas_object_del(item->track_obj);
> + }
> +
> EINA_LIST_FREE(item->signals, wisd)
> {
> eina_stringshare_del(wisd->emission);
> @@ -5204,6 +5273,66 @@
> _elm_widget_item_domain_part_text_translatable_set(Elm_Widget_Item *item,
> item->on_translate = EINA_FALSE;
> }
>
> +EAPI Evas_Object *
> +elm_widget_item_track(Elm_Widget_Item *item)
> +{
> + ELM_WIDGET_ITEM_CHECK_OR_RETURN(item, NULL);
> +
> + if (item->track_obj)
> + {
> + evas_object_ref(item->track_obj);
> + return item->track_obj;
> + }
> +
> + if (!item->view) return NULL;
> +
> + Evas_Object *track =
> + evas_object_rectangle_add(evas_object_evas_get(item->widget));
> + evas_object_color_set(track, 0, 0, 0, 0);
> + evas_object_pass_events_set(track, EINA_TRUE);
> + _track_obj_update(track, item->view);
> + evas_object_event_callback_add(track, EVAS_CALLBACK_DEL, _track_obj_del,
> + item);
> +
> + evas_object_event_callback_add(item->view, EVAS_CALLBACK_RESIZE,
> + _track_obj_view_update, track);
> + evas_object_event_callback_add(item->view, EVAS_CALLBACK_MOVE,
> + _track_obj_view_update, track);
> + evas_object_event_callback_add(item->view, EVAS_CALLBACK_SHOW,
> + _track_obj_view_update, track);
> + evas_object_event_callback_add(item->view, EVAS_CALLBACK_HIDE,
> + _track_obj_view_update, track);
> + evas_object_event_callback_add(item->view, EVAS_CALLBACK_DEL,
> + _track_obj_view_del, item);
> +
> + evas_object_ref(track);
> +
> + item->track_obj = track;
> +
> + return track;
> +}
> +
> +void
> +elm_widget_item_untrack(Elm_Widget_Item *item)
> +{
> + ELM_WIDGET_ITEM_CHECK_OR_RETURN(item);
> +
> + if (!item->track_obj) return;
> + evas_object_unref(item->track_obj);
> +
> + if (evas_object_ref_get(item->track_obj) == 0)
> + evas_object_del(item->track_obj);
> +}
> +
> +int
> +elm_widget_item_track_get(const Elm_Widget_Item *item)
> +{
> + ELM_WIDGET_ITEM_CHECK_OR_RETURN(item, 0);
> +
> + if (!item->track_obj) return 0;
> + return evas_object_ref_get(item->track_obj);
> +}
> +
> typedef struct _Elm_Widget_Item_Tooltip Elm_Widget_Item_Tooltip;
>
> struct _Elm_Widget_Item_Tooltip
> diff --git a/src/lib/elm_widget.h b/src/lib/elm_widget.h
> index 48d8736..6b65601 100644
> --- a/src/lib/elm_widget.h
> +++ b/src/lib/elm_widget.h
> @@ -579,6 +579,7 @@ struct _Elm_Widget_Item
> Eina_List *access_order;
> Eina_Inlist *translate_strings;
> Eina_List *signals;
> + Evas_Object *track_obj;
>
> Eina_Bool disabled : 1;
> Eina_Bool on_translate : 1;
> @@ -772,6 +773,10 @@ EAPI const char *
> _elm_widget_item_translatable_part_text_get(const Elm_Widg
> EAPI void _elm_widget_item_translate(Elm_Widget_Item *item);
> EAPI void
> _elm_widget_item_domain_part_text_translatable_set(Elm_Widget_Item *item,
> const char *part, const char *domain, Eina_Bool translatable);
>
> +EAPI Evas_Object *elm_widget_item_track(Elm_Widget_Item *item);
> +EAPI void elm_widget_item_untrack(Elm_Widget_Item *item);
> +EAPI int elm_widget_item_track_get(const Elm_Widget_Item *item);
> +
> /**
> * Function to operate on a given widget's scrollabe children when necessary.
> * @warning free the returned list with eina_list_free().
>
> --
>
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