efl/legacy/evas/src/lib/canvas/evas_focus.c

116 lines
2.7 KiB
C

#include "evas_common.h"
#include "evas_private.h"
/* private calls */
/* local calls */
/* public calls */
/**
* @addtogroup Evas_Object_Group_Basic
* @{
*/
/**
* Sets focus to the given object.
*
* @param obj The object to be focused or unfocused.
* @param focus set or remove focus to the object.
*
* Changing focus only affects where key events go. There can be only
* one object focused at any time. <p> If the parameter (@p focus) is
* set, the passed object will be set as the currently focused object.
* It will receive all keyboard events that are not exclusive key
* grabs on other objects.
*
* @see evas_object_focus_get
* @see evas_focus_get
* @see evas_object_key_grab
* @see evas_object_key_ungrab
*/
EAPI void
evas_object_focus_set(Evas_Object *obj, Eina_Bool focus)
{
MAGIC_CHECK(obj, Evas_Object, MAGIC_OBJ);
return;
MAGIC_CHECK_END();
_evas_object_event_new();
if (focus)
{
if (obj->focused) goto end;
if (obj->layer->evas->focused)
evas_object_focus_set(obj->layer->evas->focused, 0);
obj->focused = 1;
obj->layer->evas->focused = obj;
evas_object_event_callback_call(obj, EVAS_CALLBACK_FOCUS_IN, NULL);
evas_event_callback_call(obj->layer->evas,
EVAS_CALLBACK_CANVAS_OBJECT_FOCUS_IN, obj);
}
else
{
if (!obj->focused) goto end;
obj->focused = 0;
obj->layer->evas->focused = NULL;
evas_object_event_callback_call(obj, EVAS_CALLBACK_FOCUS_OUT, NULL);
evas_event_callback_call(obj->layer->evas,
EVAS_CALLBACK_CANVAS_OBJECT_FOCUS_OUT, obj);
}
end:
_evas_post_event_callback_call(obj->layer->evas);
}
/**
* Test if the object has focus.
*
* @param obj The object to be tested.
*
* If the passed object is the currently focused object 1 is returned,
* 0 otherwise.
*
* @see evas_object_focus_set
* @see evas_focus_get
* @see evas_object_key_grab
* @see evas_object_key_ungrab
*
* @return 1 if the object has the focus, 0 otherwise.
*/
EAPI Eina_Bool
evas_object_focus_get(const Evas_Object *obj)
{
MAGIC_CHECK(obj, Evas_Object, MAGIC_OBJ);
return 0;
MAGIC_CHECK_END();
return obj->focused;
}
/**
* @}
*/
/**
* Retrieve the object that currently has focus.
*
* @param e The @c Evas canvas to query focus on.
*
* Returns the object that currently has focus, NULL otherwise.
*
* @see evas_object_focus_set
* @see evas_object_focus_get
* @see evas_object_key_grab
* @see evas_object_key_ungrab
*
* @return The object that has focus or NULL is there is not one.
*
* @ingroup Evas_Object_Group_Find
*/
EAPI Evas_Object *
evas_focus_get(const Evas *e)
{
MAGIC_CHECK(e, Evas, MAGIC_EVAS);
return NULL;
MAGIC_CHECK_END();
return e->focused;
}