forked from enlightenment/enlightenment
better protect comp object internals from dereferencing freed clients
animating comp objects persist after the lifetime of their client, so ensure that functions which are likely to be called after the client's free will not attempt to access client struct members
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2931d01523
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5d89a8a993
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@ -103,7 +103,7 @@ typedef struct _E_Comp_Object
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unsigned int animating; // it's busy animating
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unsigned int failures; //number of consecutive e_pixmap_image_draw() failures
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unsigned int force_visible; //number of visible obj_mirror objects
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Eina_Bool delete_pending : 1; // delete pending
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Eina_Bool deleted : 1; // deleted
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Eina_Bool defer_hide : 1; // flag to get hide to work on deferred hide
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Eina_Bool showing : 1; // object is currently in "show" animation
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Eina_Bool visible : 1; // is visible
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@ -234,7 +234,7 @@ _e_comp_object_cb_mirror_show(void *data, Evas *e EINA_UNUSED, Evas_Object *obj
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{
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E_Comp_Object *cw = data;
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if ((!cw->force_visible) && (!e_object_is_del(E_OBJECT(cw->ec))))
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if ((!cw->force_visible) && (!cw->deleted) && (!e_object_is_del(E_OBJECT(cw->ec))))
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evas_object_smart_callback_call(cw->smart_obj, "visibility_force", cw->ec);
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cw->force_visible++;
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}
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@ -245,7 +245,7 @@ _e_comp_object_cb_mirror_hide(void *data, Evas *e EINA_UNUSED, Evas_Object *obj
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E_Comp_Object *cw = data;
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cw->force_visible--;
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if ((!cw->force_visible) && (!e_object_is_del(E_OBJECT(cw->ec))))
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if ((!cw->force_visible) && (!cw->deleted) && (!e_object_is_del(E_OBJECT(cw->ec))))
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evas_object_smart_callback_call(cw->smart_obj, "visibility_normal", cw->ec);
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}
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@ -2224,7 +2224,7 @@ _e_comp_smart_focus_out(void *data, Evas *e EINA_UNUSED, Evas_Object *obj, void
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{
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E_Comp_Object *cw = data;
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if (!e_object_is_del(E_OBJECT(cw->ec)))
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if ((!cw->deleted) && (!e_object_is_del(E_OBJECT(cw->ec))))
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e_comp_object_signal_emit(obj, "e,state,unfocused", "e");
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}
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@ -2305,6 +2305,9 @@ _e_comp_smart_hide(Evas_Object *obj)
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{
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INTERNAL_ENTRY;
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cw->visible = 0;
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cw->deleted = e_object_is_del(E_OBJECT(cw->ec));
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if (cw->deleted)
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_e_comp_object_layers_remove(cw);
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evas_object_hide(cw->clip);
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if (cw->input_obj) evas_object_hide(cw->input_obj);
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evas_object_hide(cw->effect_obj);
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@ -2386,6 +2389,7 @@ _e_comp_smart_del(Evas_Object *obj)
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INTERNAL_ENTRY;
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if (!cw->deleted)
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e_comp_object_render_update_del(cw->smart_obj);
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E_FREE_FUNC(cw->updates, eina_tiler_free);
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E_FREE_FUNC(cw->pending_updates, eina_tiler_free);
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@ -2396,6 +2400,8 @@ _e_comp_smart_del(Evas_Object *obj)
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evas_object_image_data_set(o, NULL);
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evas_object_freeze_events_set(o, 1);
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evas_object_event_callback_del_full(o, EVAS_CALLBACK_DEL, _e_comp_object_cb_mirror_del, cw);
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evas_object_event_callback_del_full(o, EVAS_CALLBACK_SHOW, _e_comp_object_cb_mirror_show, cw);
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evas_object_event_callback_del_full(o, EVAS_CALLBACK_HIDE, _e_comp_object_cb_mirror_hide, cw);
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evas_object_del(o);
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}
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EINA_LIST_FREE(cw->obj_agent, o)
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@ -2404,6 +2410,7 @@ _e_comp_smart_del(Evas_Object *obj)
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evas_object_event_callback_del_full(o, EVAS_CALLBACK_DEL, _e_comp_object_cb_agent_del, cw);
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evas_object_del(o);
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}
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if (!cw->deleted)
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_e_comp_object_layers_remove(cw);
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l = evas_object_data_get(obj, "comp_object-to_del");
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E_FREE_LIST(l, evas_object_del);
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