forked from enlightenment/efl
215 lines
6.5 KiB
C
215 lines
6.5 KiB
C
#include "evas_common.h"
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#include "evas_private.h"
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/* private calls */
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/* FIXME: this is not optimal, but works. i should have a hash of keys per */
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/* Evas and then a linked lists of grabs for that key and what */
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/* modifiers/not_modifers they use */
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static Evas_Key_Grab *evas_key_grab_new (Evas_Object *eo_obj, Evas_Object_Protected_Data *obj, const char *keyname, Evas_Modifier_Mask modifiers, Evas_Modifier_Mask not_modifiers, Eina_Bool exclusive);
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static Evas_Key_Grab *evas_key_grab_find (Evas_Object *eo_obj, Evas_Object_Protected_Data *obj, const char *keyname, Evas_Modifier_Mask modifiers, Evas_Modifier_Mask not_modifiers, Eina_Bool exclusive);
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static Evas_Key_Grab *
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evas_key_grab_new(Evas_Object *eo_obj, Evas_Object_Protected_Data *obj, const char *keyname, Evas_Modifier_Mask modifiers, Evas_Modifier_Mask not_modifiers, Eina_Bool exclusive)
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{
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/* MEM OK */
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Evas_Key_Grab *g;
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g = evas_mem_calloc(sizeof(Evas_Key_Grab));
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if (!g) return NULL;
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g->object = eo_obj;
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g->modifiers = modifiers;
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g->not_modifiers = not_modifiers;
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g->exclusive = exclusive;
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g->keyname = strdup(keyname);
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if (obj->layer->evas->walking_grabs)
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g->just_added = EINA_TRUE;
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if (!g->keyname)
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{
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if (!evas_mem_free(strlen(keyname) + 1))
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{
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free(g);
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return NULL;
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}
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g->keyname = strdup(keyname);
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if (!g->keyname)
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{
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free(g);
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return NULL;
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}
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}
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obj->grabs = eina_list_append(obj->grabs, g);
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if (eina_error_get())
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{
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MERR_BAD();
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evas_mem_free(sizeof(Eina_List));
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obj->grabs = eina_list_append(obj->grabs, g);
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if (eina_error_get())
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{
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MERR_FATAL();
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free(g->keyname);
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free(g);
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return NULL;
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}
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}
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obj->layer->evas->grabs = eina_list_append(obj->layer->evas->grabs, g);
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if (eina_error_get())
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{
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MERR_BAD();
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evas_mem_free(sizeof(Eina_List));
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obj->layer->evas->grabs = eina_list_append(obj->layer->evas->grabs, g);
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if (eina_error_get())
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{
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MERR_FATAL();
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obj->grabs = eina_list_remove(obj->grabs, g);
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free(g->keyname);
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free(g);
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return NULL;
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}
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}
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return g;
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}
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static Evas_Key_Grab *
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evas_key_grab_find(Evas_Object *eo_obj, Evas_Object_Protected_Data *obj, const char *keyname, Evas_Modifier_Mask modifiers, Evas_Modifier_Mask not_modifiers, Eina_Bool exclusive)
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{
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/* MEM OK */
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Eina_List *l;
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Evas_Key_Grab *g;
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EINA_LIST_FOREACH(obj->layer->evas->grabs, l, g)
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{
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if ((g->modifiers == modifiers) &&
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(g->not_modifiers == not_modifiers) &&
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(!strcmp(g->keyname, keyname)))
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{
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if ((exclusive) || (eo_obj == g->object)) return g;
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}
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}
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return NULL;
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}
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/* local calls */
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void
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evas_object_grabs_cleanup(Evas_Object *eo_obj EINA_UNUSED, Evas_Object_Protected_Data *obj)
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{
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if (obj->layer->evas->walking_grabs)
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{
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Eina_List *l;
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Evas_Key_Grab *g;
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EINA_LIST_FOREACH(obj->grabs, l, g)
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g->delete_me = EINA_TRUE;
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}
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else
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{
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while (obj->grabs)
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{
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Evas_Key_Grab *g = obj->grabs->data;
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if (g->keyname) free(g->keyname);
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free(g);
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obj->layer->evas->grabs = eina_list_remove(obj->layer->evas->grabs,
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g);
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obj->grabs = eina_list_remove(obj->grabs, g);
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}
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}
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}
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void
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evas_key_grab_free(Evas_Object *eo_obj, Evas_Object_Protected_Data *obj, const char *keyname, Evas_Modifier_Mask modifiers, Evas_Modifier_Mask not_modifiers)
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{
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/* MEM OK */
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Evas_Key_Grab *g;
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g = evas_key_grab_find(eo_obj, obj, keyname, modifiers, not_modifiers, 0);
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if (!g) return;
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Evas_Object_Protected_Data *g_object = eo_data_get(g->object, EVAS_OBJ_CLASS);
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g_object->grabs = eina_list_remove(g_object->grabs, g);
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obj->layer->evas->grabs = eina_list_remove(obj->layer->evas->grabs, g);
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if (g->keyname) free(g->keyname);
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free(g);
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}
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/* public calls */
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EAPI Eina_Bool
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evas_object_key_grab(Evas_Object *eo_obj, const char *keyname, Evas_Modifier_Mask modifiers, Evas_Modifier_Mask not_modifiers, Eina_Bool exclusive)
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{
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MAGIC_CHECK(eo_obj, Evas_Object, MAGIC_OBJ);
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return EINA_FALSE;
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MAGIC_CHECK_END();
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Eina_Bool ret = EINA_FALSE;
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eo_do(eo_obj, evas_obj_key_grab(keyname, modifiers, not_modifiers, exclusive, &ret));
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return ret;
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}
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void
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_key_grab(Eo *eo_obj, void *_pd, va_list *list)
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{
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const char *keyname = va_arg(*list, const char *);
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Evas_Modifier_Mask modifiers = va_arg(*list, Evas_Modifier_Mask);
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Evas_Modifier_Mask not_modifiers = va_arg(*list, Evas_Modifier_Mask);
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Eina_Bool exclusive = va_arg(*list, int);
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Eina_Bool *ret = va_arg(*list, Eina_Bool *);
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/* MEM OK */
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Evas_Key_Grab *g;
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Evas_Object_Protected_Data *obj = _pd;
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if (((modifiers == not_modifiers) && (modifiers != 0)) || (!keyname))
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{
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*ret = EINA_FALSE;
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return;
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}
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if (exclusive)
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{
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g = evas_key_grab_find(eo_obj, obj, keyname, modifiers, not_modifiers,
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exclusive);
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if (g)
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{
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*ret = EINA_FALSE;
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return;
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}
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}
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g = evas_key_grab_new(eo_obj, obj, keyname, modifiers, not_modifiers, exclusive);
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*ret = (!g) ? EINA_FALSE : EINA_TRUE;
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}
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EAPI void
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evas_object_key_ungrab(Evas_Object *eo_obj, const char *keyname, Evas_Modifier_Mask modifiers, Evas_Modifier_Mask not_modifiers)
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{
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MAGIC_CHECK(eo_obj, Evas_Object, MAGIC_OBJ);
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return;
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MAGIC_CHECK_END();
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eo_do(eo_obj, evas_obj_key_ungrab(keyname, modifiers, not_modifiers));
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}
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void
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_key_ungrab(Eo *eo_obj, void *_pd, va_list *list)
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{
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const char *keyname = va_arg(*list, const char *);
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Evas_Modifier_Mask modifiers = va_arg(*list, Evas_Modifier_Mask);
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Evas_Modifier_Mask not_modifiers = va_arg(*list, Evas_Modifier_Mask);
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/* MEM OK */
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Evas_Key_Grab *g;
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if (!keyname) return;
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Evas_Object_Protected_Data *obj = _pd;
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g = evas_key_grab_find(eo_obj, obj, keyname, modifiers, not_modifiers, 0);
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if (!g) return;
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Evas_Object_Protected_Data *g_object = eo_data_get(g->object, EVAS_OBJ_CLASS);
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if (g_object->layer->evas->walking_grabs)
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{
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if (!g->delete_me)
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{
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g_object->layer->evas->delete_grabs++;
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g->delete_me = EINA_TRUE;
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}
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}
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else
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evas_key_grab_free(g->object, g_object, keyname, modifiers, not_modifiers);
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}
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