This patch broke at least two stuffs:

1. item movement with key arrow
now up/down arrow scrolls genlist now move to upper/lower item.

2. item del routine.
item del callbacks are called twice LOL.
this also broke apps that use elm_fileselector_button which uses
elm_genlist internally.

Please fix them as soon as possible.
This is very serious.

Thanks.

Daniel Juyung Seo (SeoZ)


On Mon, Apr 15, 2013 at 12:00 PM, Tae-Hwan Kim - Enlightenment Git <
[email protected]> wrote:

> raster pushed a commit to branch master.
>
> commit cea8e755dbf9b062bb1e6d7a89fbf4c590b8f6b3
> Author: Tae-Hwan Kim <[email protected]>
> Date:   Mon Apr 15 12:00:43 2013 +0900
>
>     I removed it->generation, sd->generation, it->walking, sd->walking
>     flags.
>     This flags was used for deferring deletion of genlist items.
>     After deferred, items can be cleanup when _item_select() is called.
>     This flags was used for preventing crash when subitems are deleted
> right
>     after one item is deleted.
>
>     But this made genlist code too complicated and could hide internal
>     issues. One of the issues is incorrect use of EINA_INSTLIST_FOREACH (or
>     forloop). Because sub items can be deleted when one item is deleted, I
>     used whlie loop and EINA_INLIST_CONTAINER_GET(sd->items->last, xx) and
>     not defer the deletion. This has no problem evenif inlist sd->items is
>     changed inside the while-loop.
> ---
>  src/lib/elm_genlist.c        | 171
> +++++++++++++------------------------------
>  src/lib/elm_widget_genlist.h |   5 --
>  2 files changed, 50 insertions(+), 126 deletions(-)
>
> diff --git a/src/lib/elm_genlist.c b/src/lib/elm_genlist.c
> index d9317c3..44f1e90 100644
> --- a/src/lib/elm_genlist.c
> +++ b/src/lib/elm_genlist.c
> @@ -1075,8 +1075,7 @@ _decorate_all_item_realize(Elm_Gen_Item *it,
>     const char *stacking;
>     const char *stacking_even;
>
> -   if ((!it) || (it->item->decorate_all_item_realized) ||
> -       (it->generation < GL_IT(it)->wsd->generation))
> +   if ((!it) || (it->item->decorate_all_item_realized))
>       return;
>
>     it->deco_all_view = edje_object_add(evas_object_evas_get(WIDGET(it)));
> @@ -1466,7 +1465,6 @@ _item_realize(Elm_Gen_Item *it,
>     char buf[1024];
>     int tsize = 20;
>
> -   if (it->generation < GL_IT(it)->wsd->generation) return;
>     if (it->realized)
>       {
>          if (it->item->order_num_in != in)
> @@ -1988,8 +1986,7 @@ _item_block_position(Item_Block *itb,
>
>     EINA_LIST_FOREACH(itb->items, l, it)
>       {
> -        if (it->generation < GL_IT(it)->wsd->generation) continue;
> -        else if (GL_IT(it)->wsd->reorder_it == it)
> +        if (GL_IT(it)->wsd->reorder_it == it)
>            continue;
>
>          it->x = 0;
> @@ -2287,7 +2284,7 @@ _item_single_select_up(Elm_Genlist_Smart_Data *sd)
>     if (!sd->selected)
>       {
>          prev = ELM_GEN_ITEM_FROM_INLIST(sd->items->last);
> -        while ((prev) && (prev->generation < sd->generation))
> +        while (prev)
>            prev = ELM_GEN_ITEM_FROM_INLIST(EINA_INLIST_GET(prev)->prev);
>       }
>     else
> @@ -2311,7 +2308,7 @@ _item_single_select_down(Elm_Genlist_Smart_Data *sd)
>     if (!sd->selected)
>       {
>          next = ELM_GEN_ITEM_FROM_INLIST(sd->items);
> -        while ((next) && (next->generation < sd->generation))
> +        while (next)
>            next = ELM_GEN_ITEM_FROM_INLIST(EINA_INLIST_GET(next)->next);
>       }
>     else
> @@ -2695,7 +2692,6 @@ _item_highlight(Elm_Gen_Item *it)
>
>     if ((GL_IT(it)->wsd->select_mode == ELM_OBJECT_SELECT_MODE_NONE) ||
>         (!GL_IT(it)->wsd->highlight) ||
> -       (it->generation < GL_IT(it)->wsd->generation) ||
>         (it->highlighted) || elm_widget_item_disabled_get(it) ||
>         (it->select_mode == ELM_OBJECT_SELECT_MODE_NONE) ||
>         (it->item->deco_it_view) ||
> @@ -2721,7 +2717,7 @@ _item_highlight(Elm_Gen_Item *it)
>  static void
>  _item_unhighlight(Elm_Gen_Item *it)
>  {
> -   if ((it->generation < GL_IT(it)->wsd->generation) ||
> (!it->highlighted))
> +   if (!it->highlighted)
>       return;
>
>     edje_object_signal_emit(VIEW(it), "elm,state,unselected", "elm");
> @@ -2913,11 +2909,6 @@ static void
>  _elm_genlist_item_del_not_serious(Elm_Gen_Item *it)
>  {
>     elm_widget_item_pre_notify_del(it);
> -   it->generation = GL_IT(it)->wsd->generation - 1; /* This means that
> -                                                     * the item is
> -                                                     * deleted */
> -
> -   if (it->walking > 0) return;
>
>     if (it->selected)
>       GL_IT(it)->wsd->selected =
> @@ -2936,7 +2927,6 @@ _elm_genlist_item_del_serious(Elm_Gen_Item *it)
>       eina_inlist_remove(GL_IT(it)->wsd->items, EINA_INLIST_GET(it));
>     if (it->tooltip.del_cb)
>       it->tooltip.del_cb((void *)it->tooltip.data, WIDGET(it), it);
> -   GL_IT(it)->wsd->walking -= it->walking;
>     if (it->long_timer)
>       {
>          ecore_timer_del(it->long_timer);
> @@ -3013,7 +3003,6 @@ _item_del(Elm_Gen_Item *it)
>  static void
>  _item_unselect(Elm_Gen_Item *it)
>  {
> -   if ((it->generation < GL_IT(it)->wsd->generation)) return;
>     _item_unhighlight(it); /* unhighlight the item first */
>     if (!it->selected) return; /* then check whether the item is selected
> */
>
> @@ -4237,8 +4226,7 @@ _decorate_item_finished_signal_cb(void *data,
>
>     te = evas_object_evas_get(obj);
>
> -   if ((it->generation < GL_IT(it)->wsd->generation) || (!it->realized)
> -       || (!it->item->deco_it_view)) return;
> +   if ((!it->realized) || (!it->item->deco_it_view)) return;
>
>     evas_event_freeze(te);
>     it->item->nocache_once = EINA_FALSE;
> @@ -4375,7 +4363,6 @@ _item_block_recalc(Item_Block *itb,
>     itb->num = in;
>     EINA_LIST_FOREACH(itb->items, l, it)
>       {
> -        if (it->generation < GL_IT(it)->wsd->generation) continue;
>          show_me |= it->item->show_me;
>          if (!itb->realized)
>            {
> @@ -4609,8 +4596,7 @@ _decorate_item_realize(Elm_Gen_Item *it)
>     char buf[1024];
>     Evas_Object *obj = (GL_IT(it)->wsd)->obj;
>
> -   if ((it->item->deco_it_view) || (it->generation <
> -                                    GL_IT(it)->wsd->generation)) return;
> +   if (it->item->deco_it_view) return;
>
>     evas_event_freeze(evas_object_evas_get(obj));
>     it->item->deco_it_view =
> edje_object_add(evas_object_evas_get(WIDGET(it)));
> @@ -4750,8 +4736,6 @@ _elm_genlist_smart_add(Eo *obj, void *_pd, va_list
> *list EINA_UNUSED)
>     elm_widget_can_focus_set(obj, EINA_TRUE);
>     elm_widget_on_show_region_hook_set(obj, _show_region_hook, NULL);
>
> -   priv->generation = 1;
> -
>     if (!elm_layout_theme_set
>         (obj, "genlist", "base", elm_widget_style_get(obj)))
>       CRITICAL("Failed to set layout!");
> @@ -4943,46 +4927,27 @@ _clear(Elm_Genlist_Smart_Data *sd)
>  }
>
>  static void
> -_elm_genlist_clear(Evas_Object *obj,
> -                   Eina_Bool standby)
> +_elm_genlist_clear(Evas_Object *obj)
>  {
> -   Eina_Inlist *next, *l;
> +   Elm_Gen_Item *it;
>
>     ELM_GENLIST_DATA_GET(obj, sd);
>
> -   if (!standby) sd->generation++;
> -
>     if (sd->state)
>       {
>          eina_inlist_sorted_state_free(sd->state);
>          sd->state = NULL;
>       }
>
> -   if (sd->walking > 0)
> -     {
> -        sd->clear_me = EINA_TRUE;
> -        return;
> -     }
> -
>     evas_event_freeze(evas_object_evas_get(sd->obj));
> -   for (l = sd->items, next = l ? l->next : NULL;
> -        l;
> -        l = next, next = next ? next->next : NULL)
> +   // Do not use EINA_INLIST_FOREACH or EINA_INLIST_FOREACH_SAFE
> +   // because sd->items can be modified inside elm_widget_item_del()
> +   while (sd->items)
>       {
> -        Elm_Gen_Item *it = ELM_GEN_ITEM_FROM_INLIST(l);
> -
> -        if (it->generation < sd->generation)
> -          {
> -             Elm_Gen_Item *itn = NULL;
> -
> -             if (next) itn = ELM_GEN_ITEM_FROM_INLIST(next);
> -             if (itn) itn->walking++;  /* prevent early death of subitem
> */
> -             it->del_cb(it);
> -             elm_widget_item_free(it);
> -             if (itn) itn->walking--;
> -          }
> +        it = EINA_INLIST_CONTAINER_GET(sd->items->last, Elm_Gen_Item);
> +        it->item->nocache_once = EINA_TRUE;
> +        elm_widget_item_del(it);
>       }
> -   sd->clear_me = EINA_FALSE;
>     sd->pan_changed = EINA_TRUE;
>     if (!sd->queue)
>       {
> @@ -5017,8 +4982,7 @@ _item_select(Elm_Gen_Item *it)
>  {
>     Evas_Object *obj = WIDGET(it);
>
> -   if ((it->generation < GL_IT(it)->wsd->generation) ||
> -       (it->decorate_it_set) ||
> +   if ((it->decorate_it_set) ||
>         (it->select_mode == ELM_OBJECT_SELECT_MODE_NONE) ||
>         (GL_IT(it)->wsd->select_mode == ELM_OBJECT_SELECT_MODE_NONE))
>       return;
> @@ -5033,26 +4997,8 @@ _item_select(Elm_Gen_Item *it)
>       return;
>
>     evas_object_ref(obj);
> -   it->walking++;
> -   GL_IT(it)->wsd->walking++;
>     if (it->func.func) it->func.func((void *)it->func.data, WIDGET(it),
> it);
> -   if (it->generation == GL_IT(it)->wsd->generation)
> -     evas_object_smart_callback_call(WIDGET(it), SIG_SELECTED, it);
> -
> -   it->walking--;
> -   GL_IT(it)->wsd->walking--;
> -   if ((GL_IT(it)->wsd->clear_me) && (!GL_IT(it)->wsd->walking))
> -     _elm_genlist_clear(WIDGET(it), EINA_TRUE);
> -   else
> -     {
> -        if ((!it->walking) && (it->generation <
> GL_IT(it)->wsd->generation))
> -          {
> -             it->del_cb(it);
> -             elm_widget_item_free(it);
> -          }
> -        else
> -          GL_IT(it)->wsd->last_selected_item = (Elm_Object_Item *)it;
> -     }
> +   evas_object_smart_callback_call(WIDGET(it), SIG_SELECTED, it);
>     evas_object_unref(obj);
>  }
>
> @@ -5092,8 +5038,6 @@ _item_disable_hook(Elm_Object_Item *item)
>     Evas_Object *obj;
>     Elm_Gen_Item *it = (Elm_Gen_Item *)item;
>
> -   if (it->generation < GL_IT(it)->wsd->generation) return;
> -
>     if (it->selected)
>       elm_genlist_item_selected_set(item, EINA_FALSE);
>
> @@ -5123,38 +5067,33 @@ _item_del_pre_hook(Elm_Object_Item *item)
>  {
>     Elm_Gen_Item *it = (Elm_Gen_Item *)item;
>
> -   if (it->walking > 0)
> +   // FIXME: relative will be better to be fixed. it is too harsh.
> +   if (it->item->rel)
> +      it->item->rel->item->rel_revs =
> +         eina_list_remove(it->item->rel->item->rel_revs, it);
> +   if (it->item->rel_revs)
> +      {
> +        Elm_Gen_Item *tmp;
> +        EINA_LIST_FREE(it->item->rel_revs, tmp) tmp->item->rel = NULL;
> +      }
> +   elm_genlist_item_subitems_clear(item);
> +   if (GL_IT(it)->wsd->show_item == it)
> +      GL_IT(it)->wsd->show_item = NULL;
> +   _elm_genlist_item_del_not_serious(it);
> +   if (it->item->block)
>       {
> -     // FIXME: relative will be better to be fixed. it is too harsh.
> -      if (it->item->rel)
> -        it->item->rel->item->rel_revs =
> -          eina_list_remove(it->item->rel->item->rel_revs, it);
> -      if (it->item->rel_revs)
> -         {
> -           Elm_Gen_Item *tmp;
> -           EINA_LIST_FREE(it->item->rel_revs, tmp) tmp->item->rel = NULL;
> -         }
> -        elm_genlist_item_subitems_clear(item);
> -        if (GL_IT(it)->wsd->show_item == it)
> -          GL_IT(it)->wsd->show_item = NULL;
> -
> -        _elm_genlist_item_del_not_serious(it);
> -        if (it->item->block)
> -          {
> -             if (it->realized) _elm_genlist_item_unrealize(it,
> EINA_FALSE);
> -             it->item->block->changed = EINA_TRUE;
> -             if (GL_IT(it)->wsd->calc_job)
> -               ecore_job_del(GL_IT(it)->wsd->calc_job);
> -             GL_IT(it)->wsd->calc_job =
> -               ecore_job_add(_calc_job, GL_IT(it)->wsd);
> -          }
> -        if (it->parent)
> -          {
> -             it->parent->item->items =
> -               eina_list_remove(it->parent->item->items, it);
> -             it->parent = NULL;
> -          }
> -        return EINA_FALSE;
> +        if (it->realized) _elm_genlist_item_unrealize(it, EINA_FALSE);
> +        it->item->block->changed = EINA_TRUE;
> +        if (GL_IT(it)->wsd->calc_job)
> +           ecore_job_del(GL_IT(it)->wsd->calc_job);
> +        GL_IT(it)->wsd->calc_job =
> +           ecore_job_add(_calc_job, GL_IT(it)->wsd);
> +     }
> +   if (it->parent)
> +     {
> +        it->parent->item->items =
> +           eina_list_remove(it->parent->item->items, it);
> +        it->parent = NULL;
>       }
>
>     _item_del(it);
> @@ -5186,7 +5125,6 @@ _elm_genlist_item_new(Elm_Genlist_Smart_Data *sd,
>     it = elm_widget_item_new(sd->obj, Elm_Gen_Item);
>     if (!it) return NULL;
>
> -   it->generation = sd->generation;
>     it->itc = itc;
>     elm_genlist_item_class_ref((Elm_Genlist_Item_Class *)itc);
>
> @@ -5641,7 +5579,7 @@ elm_genlist_clear(Evas_Object *obj)
>  static void
>  _clear_eo(Eo *obj, void *_pd EINA_UNUSED, va_list *list EINA_UNUSED)
>  {
> -   _elm_genlist_clear(obj, EINA_FALSE);
> +   _elm_genlist_clear(obj);
>  }
>
>  EAPI void
> @@ -5846,7 +5784,7 @@ _first_item_get(Eo *obj EINA_UNUSED, void *_pd,
> va_list *list)
>     if (!sd->items) return;
>
>     it = ELM_GEN_ITEM_FROM_INLIST(sd->items);
> -   while ((it) && (it->generation < sd->generation))
> +   while (it)
>       it = ELM_GEN_ITEM_FROM_INLIST(EINA_INLIST_GET(it)->next);
>
>     *ret = (Elm_Object_Item *)it;
> @@ -5874,7 +5812,7 @@ _last_item_get(Eo *obj EINA_UNUSED, void *_pd,
> va_list *list)
>     if (!sd->items) return;
>
>     it = ELM_GEN_ITEM_FROM_INLIST(sd->items->last);
> -   while ((it) && (it->generation < sd->generation))
> +   while (it)
>       it = ELM_GEN_ITEM_FROM_INLIST(EINA_INLIST_GET(it)->prev);
>
>     *ret = (Elm_Object_Item *)it;
> @@ -5891,7 +5829,7 @@ elm_genlist_item_next_get(const Elm_Object_Item
> *item)
>     while (it)
>       {
>          it = ELM_GEN_ITEM_FROM_INLIST(EINA_INLIST_GET(it)->next);
> -        if ((it) && (it->generation == GL_IT(it)->wsd->generation)) break;
> +        if (it) break;
>       }
>
>     return (Elm_Object_Item *)it;
> @@ -5908,7 +5846,7 @@ elm_genlist_item_prev_get(const Elm_Object_Item
> *item)
>     while (it)
>       {
>          it = ELM_GEN_ITEM_FROM_INLIST(EINA_INLIST_GET(it)->prev);
> -        if ((it) && (it->generation == GL_IT(it)->wsd->generation)) break;
> +        if (it) break;
>       }
>
>     return (Elm_Object_Item *)it;
> @@ -5959,7 +5897,7 @@ elm_genlist_item_selected_set(Elm_Object_Item *item,
>     ELM_GENLIST_ITEM_CHECK_OR_RETURN(item);
>
>     sd = GL_IT(it)->wsd;
> -   if ((it->generation < sd->generation) ||
> elm_widget_item_disabled_get(it))
> +   if (elm_widget_item_disabled_get(it))
>       return;
>     selected = !!selected;
>     if (it->selected == selected) return;
> @@ -6135,7 +6073,6 @@ _elm_genlist_item_coordinates_calc(Elm_Object_Item
> *item,
>     Elm_Gen_Item *it = (Elm_Gen_Item *)item;
>     Evas_Coord gith = 0;
>
> -   if (it->generation < GL_IT(it)->wsd->generation) return EINA_FALSE;
>     if (!((GL_IT(it)->wsd->homogeneous) &&
>           (GL_IT(it)->wsd->mode == ELM_LIST_COMPRESS)))
>       {
> @@ -6191,7 +6128,6 @@ elm_genlist_item_promote(Elm_Object_Item *item)
>
>     ELM_GENLIST_ITEM_CHECK_OR_RETURN(item);
>
> -   if (it->generation < GL_IT(it)->wsd->generation) return;
>     _item_move_before
>       (it, (Elm_Gen_Item *)elm_genlist_first_item_get(WIDGET(it)));
>  }
> @@ -6202,7 +6138,6 @@ elm_genlist_item_demote(Elm_Object_Item *item)
>     Elm_Gen_Item *it = (Elm_Gen_Item *)item;
>
>     ELM_GENLIST_ITEM_CHECK_OR_RETURN(item);
> -   if (it->generation < GL_IT(it)->wsd->generation) return;
>     _item_move_after(it, (Elm_Gen_Item
> *)elm_genlist_last_item_get(WIDGET(it)));
>  }
>
> @@ -6258,7 +6193,6 @@ elm_genlist_item_update(Elm_Object_Item *item)
>     ELM_GENLIST_ITEM_CHECK_OR_RETURN(item);
>
>     if (!it->item->block) return;
> -   if (it->generation < GL_IT(it)->wsd->generation) return;
>     it->item->mincalcd = EINA_FALSE;
>     it->item->updateme = EINA_TRUE;
>     it->item->block->updateme = EINA_TRUE;
> @@ -6276,7 +6210,6 @@ elm_genlist_item_fields_update(Elm_Object_Item *item,
>     ELM_GENLIST_ITEM_CHECK_OR_RETURN(item);
>
>     if (!it->item->block) return;
> -   if (it->generation < GL_IT(it)->wsd->generation) return;
>
>     if ((!itf) || (itf & ELM_GENLIST_ITEM_FIELD_TEXT))
>       {
> @@ -6338,7 +6271,6 @@ elm_genlist_item_item_class_update(Elm_Object_Item
> *item,
>
>     if (!it->item->block) return;
>     EINA_SAFETY_ON_NULL_RETURN(itc);
> -   if (it->generation < GL_IT(it)->wsd->generation) return;
>     it->itc = itc;
>     it->item->nocache_once = EINA_TRUE;
>
> @@ -6378,7 +6310,6 @@ elm_genlist_item_item_class_get(const
> Elm_Object_Item *item)
>     Elm_Gen_Item *it = (Elm_Gen_Item *)item;
>
>     ELM_GENLIST_ITEM_CHECK_OR_RETURN(item, NULL);
> -   if (it->generation < GL_IT(it)->wsd->generation) return NULL;
>
>     return it->itc;
>  }
> @@ -6848,8 +6779,7 @@ elm_genlist_item_decorate_mode_set(Elm_Object_Item
> *item,
>     sd = GL_IT(it)->wsd;
>
>     if (!decorate_it_type) return;
> -   if ((it->generation < sd->generation) ||
> -       elm_widget_item_disabled_get(it)) return;
> +   if (elm_widget_item_disabled_get(it)) return;
>     if (sd->decorate_all_mode) return;
>
>     if ((sd->mode_item == it) &&
> @@ -7238,7 +7168,6 @@ elm_genlist_item_select_mode_set(Elm_Object_Item
> *item,
>
>     ELM_GENLIST_ITEM_CHECK_OR_RETURN(item);
>     if (!it) return;
> -   if (it->generation < GL_IT(it)->wsd->generation) return;
>     if (mode >= ELM_OBJECT_SELECT_MODE_MAX)
>       return;
>     if (it->select_mode != mode)
> diff --git a/src/lib/elm_widget_genlist.h b/src/lib/elm_widget_genlist.h
> index e27a74e..fadb71d 100644
> --- a/src/lib/elm_widget_genlist.h
> +++ b/src/lib/elm_widget_genlist.h
> @@ -46,7 +46,6 @@ struct _Elm_Genlist_Smart_Data
>                                                       * repositioned */
>     Elm_Object_Item                      *last_selected_item;
>     Ecore_Job                            *calc_job;
> -   int                                   walking;
>     int                                   item_width, item_height;
>     int                                   group_item_width,
> group_item_height;
>     int                                   minw, minh;
> @@ -112,9 +111,6 @@ struct _Elm_Genlist_Smart_Data
>      * default. this can be changed by
>      * elm_genlist_longpress_timeout_set() */
>     double                                longpress_timeout;
> -   /* a generation of genlist. when genlist is cleared, this value
> -    * will be increased and a new generation will start */
> -   int                                   generation;
>     Eina_Compare_Cb                       item_compare_cb;
>     Eina_Compare_Cb                       item_compare_data_cb;
>
> @@ -160,7 +156,6 @@ struct _Elm_Genlist_Smart_Data
>     Eina_Bool                             highlight : 1;
>     /* a flag whether genlist is marked as to be cleared or not. if
>      * this flag is true, genlist clear was already deferred.  */
> -   Eina_Bool                             clear_me : 1;
>     Eina_Bool                             h_bounce : 1;
>     Eina_Bool                             v_bounce : 1;
>     Eina_Bool                             bring_in : 1; /* a flag to
>
> --
>
>
> ------------------------------------------------------------------------------
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