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evas event grabber: add function to block stacking updates while visible 

@feature
This commit is contained in:
Mike Blumenkrantz 2017-06-23 17:43:58 -04:00
parent 990a9d485d
commit 881f91ef50
3 changed files with 61 additions and 16 deletions
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1
src/lib/evas/Evas_Legacy.h
View File

@ -7763,4 +7763,5 @@ EAPI void evas_object_text_filter_source_set(Evas_Object *obj, const char *name,
* @since 1.20
*/
EAPI Evas_Object *evas_object_event_grabber_add(Evas *e);
#include "canvas/efl_canvas_object_event_grabber.eo.legacy.h"
#endif

66
src/lib/evas/canvas/efl_canvas_object_event_grabber.c
View File

@ -13,6 +13,8 @@ struct _Efl_Object_Event_Grabber_Data
Eina_List *contained;
Eina_Bool vis : 1;
Eina_Bool freeze : 1;
Eina_Bool restack : 1;
};
typedef struct Efl_Object_Event_Grabber_Iterator
@ -128,12 +130,39 @@ _child_insert(Efl_Object_Event_Grabber_Data *pd, Evas_Object_Protected_Data *obj
pd->contained = eina_list_prepend(pd->contained, obj);
}
static void
_full_restack(Efl_Object_Event_Grabber_Data *pd)
{
Evas_Object_Protected_Data *obj;
Evas_Object_Protected_Data *root = NULL;
Eina_List *list = NULL;
EINA_LIST_FREE(pd->contained, obj)
{
if (obj->object == pd->rect)
{
root = obj;
continue;
}
list = eina_list_append(list, obj);
}
pd->contained = eina_list_append(pd->contained, root);
EINA_LIST_FREE(list, obj)
_child_insert(pd, obj);
pd->restack = 0;
}
static void
_efl_canvas_object_event_grabber_child_restack(void *data, const Efl_Event *event)
{
Efl_Object_Event_Grabber_Data *pd = data;
Evas_Object_Protected_Data *obj = efl_data_scope_get(event->object, EFL_CANVAS_OBJECT_CLASS);
if (pd->vis && pd->freeze)
{
pd->restack = 1;
return;
}
pd->contained = eina_list_remove(pd->contained, obj);
_child_insert(pd, obj);
}
@ -261,6 +290,8 @@ _efl_canvas_object_event_grabber_efl_gfx_visible_set(Eo *eo_obj EINA_UNUSED, Efl
}
pd->vis = !!set;
efl_gfx_visible_set(pd->rect, set);
if (pd->restack && pd->freeze && (!set))
_full_restack(pd);
}
EOLIAN static void
@ -273,27 +304,14 @@ _efl_canvas_object_event_grabber_efl_gfx_stack_layer_set(Eo *eo_obj, Efl_Object_
static void
_efl_canvas_object_event_grabber_restack(void *data, const Efl_Event *event)
{
Evas_Object_Protected_Data *obj;
Efl_Object_Event_Grabber_Data *pd = data;
Evas_Object_Protected_Data *root = NULL;
Eina_List *list = NULL;
evas_object_layer_set(pd->rect, evas_object_layer_get(event->object));
evas_object_stack_below(pd->rect, event->object);
EINA_LIST_FREE(pd->contained, obj)
{
if (obj->object == pd->rect)
{
root = obj;
continue;
}
list = eina_list_append(list, obj);
}
pd->contained = eina_list_append(pd->contained, root);
EINA_LIST_FREE(list, obj)
_child_insert(pd, obj);
pd->restack = 1;
if (pd->vis && pd->freeze) return;
_full_restack(pd);
}
EOLIAN static Eo *
@ -341,6 +359,22 @@ evas_object_event_grabber_members_list(const Eo *eo_obj)
return pd->contained;
}
EOLIAN static void
_efl_canvas_object_event_grabber_freeze_when_visible_set(Eo *eo_obj EINA_UNUSED, Efl_Object_Event_Grabber_Data *pd, Eina_Bool set)
{
set = !!set;
if (pd->freeze == set) return;
pd->freeze = set;
if (pd->vis && pd->restack && (!set))
_full_restack(pd);
}
EOLIAN static Eina_Bool
_efl_canvas_object_event_grabber_freeze_when_visible_get(Eo *eo_obj EINA_UNUSED, Efl_Object_Event_Grabber_Data *pd)
{
return pd->freeze;
}
EAPI Evas_Object *
evas_object_event_grabber_add(Evas *eo_e)
{

10
src/lib/evas/canvas/efl_canvas_object_event_grabber.eo
View File

@ -20,6 +20,16 @@ class Efl.Canvas.Object.Event.Grabber (Efl.Canvas.Group)
]]
data: Efl_Object_Event_Grabber_Data;
legacy_prefix: evas_object_event_grabber;
methods {
@property freeze_when_visible {
[[Stops the grabber from updating its internal stacking order while visible]]
values {
set: bool;
}
set {}
get {}
}
}
implements {
class.constructor;
Efl.Object.constructor;