On Mon, Sep 20, 2010 at 11:02 PM, Enlightenment SVN
<[email protected]> wrote:
> Log:
> Elementary event propagation to widget parents
>
> The Elm Widgets aren't disposed exactly as trees of Evas Objects, so
> need store widget parents separated from Evas Smart Object parents.
>
> The Evas propagation events don't satisfy all use cases. Like managing
> events in elm_win or try if one parent manage the event before manage
> it.
>
> In this, I add hook to each widget manage their interested events or
> from their child.
> Author: tiago
> Date: 2010-09-20 19:02:24 -0700 (Mon, 20 Sep 2010)
> New Revision: 52527
>
> Modified:
> trunk/TMP/st/elementary/src/lib/elm_widget.c
> trunk/TMP/st/elementary/src/lib/elm_widget.h
>
> Modified: trunk/TMP/st/elementary/src/lib/elm_widget.c
> ===================================================================
> --- trunk/TMP/st/elementary/src/lib/elm_widget.c 2010-09-21 01:58:54
> UTC (rev 52526)
> +++ trunk/TMP/st/elementary/src/lib/elm_widget.c 2010-09-21 02:02:24
> UTC (rev 52527)
> @@ -28,6 +28,7 @@
> void (*activate_func) (Evas_Object *obj);
> void (*disable_func) (Evas_Object *obj);
> void (*theme_func) (Evas_Object *obj);
> + Eina_Bool (*event_func) (Evas_Object *obj, Evas_Object *source,
> Evas_Callback_Type type, void *event_info);
> void (*signal_func) (Evas_Object *obj, const char *emission,
> const char *source);
> void (*callback_add_func) (Evas_Object *obj, const char *emission,
> @@ -156,6 +157,40 @@
> }
>
> static void
> +_propagate_event(void *data, Evas *e __UNUSED__, Evas_Object *obj, void
> *event_info)
> +{
> + INTERNAL_ENTRY;
> + Evas_Callback_Type type = (Evas_Callback_Type)(long) data;
> + Evas_Event_Flags *event_flags = NULL;
> +
> + switch (type)
> + {
> + case EVAS_CALLBACK_KEY_DOWN:
> + {
> + Evas_Event_Key_Down *ev = event_info;
> + event_flags = &(ev->event_flags);
> + break;
> + }
> + case EVAS_CALLBACK_KEY_UP:
> + {
> + Evas_Event_Key_Up *ev = event_info;
> + event_flags = &(ev->event_flags);
> + break;
> + }
> + default:
> + 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);
> +}
> +
> +static void
> _parent_focus(Evas_Object *obj)
> {
> API_ENTRY return;
> @@ -251,6 +286,13 @@
> }
>
> EAPI void
> +elm_widget_event_hook_set(Evas_Object *obj, Eina_Bool (*func) (Evas_Object
> *obj, Evas_Object *source, Evas_Callback_Type type, void *event_info))
> +{
> + API_ENTRY return;
> + sd->event_func = func;
> +}
> +
> +EAPI void
> elm_widget_changed_hook_set(Evas_Object *obj, void (*func) (Evas_Object
> *obj))
> {
> API_ENTRY return;
> @@ -458,6 +500,22 @@
> {
> API_ENTRY return;
> sd->can_focus = can_focus;
> + if (can_focus)
> + {
> + evas_object_event_callback_add(obj, EVAS_CALLBACK_KEY_DOWN,
> + _propagate_event,
> + (void *)(long)
> EVAS_CALLBACK_KEY_DOWN);
> + evas_object_event_callback_add(obj, EVAS_CALLBACK_KEY_UP,
> + _propagate_event,
> + (void *)(long) EVAS_CALLBACK_KEY_UP);
> + }
> + else
> + {
> + evas_object_event_callback_del(obj, EVAS_CALLBACK_KEY_DOWN,
> + _propagate_event);
> + evas_object_event_callback_del(obj, EVAS_CALLBACK_KEY_UP,
> + _propagate_event);
> + }
> }
Setting can_focus(0); to an object that didn't have the callbacks before will
issue warnings all over the place about deleting a callback that was not
registered.
>
> EAPI int
> @@ -565,6 +623,24 @@
> return parent;
> }
>
> +EAPI Eina_Bool
> +elm_widget_parent_event_propagate(Evas_Object *obj, Evas_Callback_Type type,
> void *event_info)
> +{
> + API_ENTRY return EINA_FALSE;
> + Evas_Object *parent = sd->parent_obj;
> + while (parent)
> + {
> + sd = evas_object_smart_data_get(parent);
> + if ((!sd) || (!_elm_widget_is(obj)))
Shouldn't you be checking if parent is an elm_widget here?
> + return EINA_FALSE; //Not Elm Widget
> + if (sd->event_func && sd->event_func(parent, obj, type, event_info))
> + return EINA_TRUE;
> + parent = sd->parent_obj;
> + }
> +
> + return EINA_FALSE;
> +}
> +
> EAPI int
> elm_widget_focus_jump(Evas_Object *obj, int forward)
> {
>
> Modified: trunk/TMP/st/elementary/src/lib/elm_widget.h
> ===================================================================
> --- trunk/TMP/st/elementary/src/lib/elm_widget.h 2010-09-21 01:58:54
> UTC (rev 52526)
> +++ trunk/TMP/st/elementary/src/lib/elm_widget.h 2010-09-21 02:02:24
> UTC (rev 52527)
> @@ -213,6 +213,7 @@
> EAPI void elm_widget_activate_hook_set(Evas_Object *obj, void
> (*func) (Evas_Object *obj));
> EAPI void elm_widget_disable_hook_set(Evas_Object *obj, void
> (*func) (Evas_Object *obj));
> EAPI void elm_widget_theme_hook_set(Evas_Object *obj, void
> (*func) (Evas_Object *obj));
> +EAPI void elm_widget_event_hook_set(Evas_Object *obj, Eina_Bool
> (*func) (Evas_Object *obj, Evas_Object *source, Evas_Callback_Type type, void
> *event_info));
> EAPI void elm_widget_changed_hook_set(Evas_Object *obj, void
> (*func) (Evas_Object *obj));
> EAPI void elm_widget_signal_emit_hook_set(Evas_Object *obj, void
> (*func) (Evas_Object *obj, const char *emission, const char *source));
> EAPI void elm_widget_signal_callback_add_hook_set(Evas_Object
> *obj, void (*func) (Evas_Object *obj, const char *emission, const char
> *source, void (*func_cb) (void *data, Evas_Object *o, const char *emission,
> const char *source), void *data));
> @@ -239,6 +240,7 @@
> 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);
> EAPI int elm_widget_focus_jump(Evas_Object *obj, int forward);
> EAPI void elm_widget_focus_set(Evas_Object *obj, int first);
> EAPI void elm_widget_focused_object_clear(Evas_Object *obj);
>
>
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