forked from enlightenment/efl
447 lines
13 KiB
C
447 lines
13 KiB
C
#include <Elementary.h>
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#include "elm_priv.h"
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typedef struct _Widget_Data Widget_Data;
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typedef struct _Item Item;
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struct _Widget_Data
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{
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Eina_List *stack;
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Item *top, *oldtop;
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Evas_Object *rect, *clip;
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};
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struct _Item
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{
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Evas_Object *obj, *base, *content;
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Evas_Coord minw, minh;
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Eina_Bool popme : 1;
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};
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static const char *widtype = NULL;
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static void _del_hook(Evas_Object *obj);
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static void _mirrored_set(Evas_Object *obj, Eina_Bool rtl);
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static void _theme_hook(Evas_Object *obj);
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static void _sizing_eval(Evas_Object *obj);
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static void _changed_size_hints(void *data,
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Evas *e,
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Evas_Object *obj,
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void *event_info);
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static void _content_del(void *data,
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Evas *e,
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Evas_Object *obj,
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void *event_info);
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static Eina_List *_item_get(Evas_Object *obj, Evas_Object *content);
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static const char SIG_HIDE_FINISHED[] = "hide,finished";
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static const char SIG_SHOW_FINISHED[] = "show,finished";
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static const Evas_Smart_Cb_Description _signals[] = {
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{SIG_HIDE_FINISHED, ""},
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{SIG_SHOW_FINISHED, ""},
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{NULL, NULL}
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};
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static void
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_del_hook(Evas_Object *obj)
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{
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Widget_Data *wd = elm_widget_data_get(obj);
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if (!wd) return;
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free(wd);
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}
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static void
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_mirrored_set(Evas_Object *obj, Eina_Bool rtl)
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{
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Widget_Data *wd = elm_widget_data_get(obj);
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Eina_List *l;
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Item *it;
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if (!wd) return;
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EINA_LIST_FOREACH(wd->stack, l, it)
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edje_object_mirrored_set(it->base, rtl);
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}
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static void
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_theme_hook(Evas_Object *obj)
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{
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Widget_Data *wd = elm_widget_data_get(obj);
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Eina_List *l;
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Item *it;
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if (!wd) return;
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_elm_widget_mirrored_reload(obj);
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_mirrored_set(obj, elm_widget_mirrored_get(obj));
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EINA_LIST_FOREACH(wd->stack, l, it)
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{
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_elm_theme_object_set(obj, it->base, "pager", "base",
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elm_widget_style_get(obj));
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edje_object_scale_set(it->base, elm_widget_scale_get(obj) *
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_elm_config->scale);
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}
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_sizing_eval(obj);
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}
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static Eina_List *
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_item_get(Evas_Object *obj, Evas_Object *content)
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{
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Widget_Data *wd = elm_widget_data_get(obj);
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Item *it;
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Eina_List *l;
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if (!wd) return NULL;
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EINA_LIST_FOREACH(wd->stack, l, it)
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{
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if (it->content == content)
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return l;
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}
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return NULL;
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}
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static Eina_Bool
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_elm_pager_focus_next_hook(const Evas_Object *obj, Elm_Focus_Direction dir, Evas_Object **next)
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{
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Widget_Data *wd = elm_widget_data_get(obj);
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Evas_Object *cur;
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if ((!wd) || (!wd->top))
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return EINA_FALSE;
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cur = wd->top->content;
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/* Try Focus cycle in subitem */
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return elm_widget_focus_next_get(cur, dir, next);
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}
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static void
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_sizing_eval(Evas_Object *obj)
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{
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Widget_Data *wd = elm_widget_data_get(obj);
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Evas_Coord minw = -1, minh = -1;
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Eina_List *l;
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Item *it;
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if (!wd) return;
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EINA_LIST_FOREACH(wd->stack, l, it)
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{
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if (it->minw > minw) minw = it->minw;
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if (it->minh > minh) minh = it->minh;
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}
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evas_object_size_hint_min_set(obj, minw, minh);
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evas_object_size_hint_max_set(obj, -1, -1);
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}
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static void
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_changed_size_hints(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
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{
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Item *it = data;
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Evas_Coord minw = -1, minh = -1;
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evas_object_size_hint_min_get(it->content, &minw, &minh);
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// FIXME: why is this needed? how does edje get this unswallowed or
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// lose its callbacks to edje
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edje_object_part_swallow(it->base, "elm.swallow.content", it->content);
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edje_object_size_min_calc(it->base, &it->minw, &it->minh);
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_sizing_eval(it->obj);
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}
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static void
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_eval_top(Evas_Object *obj)
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{
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Widget_Data *wd = elm_widget_data_get(obj);
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Item *ittop;
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if (!wd) return;
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if (!wd->stack) return;
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ittop = eina_list_last(wd->stack)->data;
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if (ittop != wd->top)
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{
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Evas_Object *o;
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const char *onshow, *onhide;
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if (wd->top)
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{
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o = wd->top->base;
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if (wd->top->popme)
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{
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edje_object_signal_emit(o, "elm,action,pop", "elm");
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wd->stack = eina_list_remove(wd->stack, wd->top);
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}
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else
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edje_object_signal_emit(o, "elm,action,hide", "elm");
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onhide = edje_object_data_get(o, "onhide");
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if (onhide)
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{
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if (!strcmp(onhide, "raise")) evas_object_raise(o);
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else if (!strcmp(onhide, "lower")) evas_object_lower(o);
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}
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}
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wd->oldtop = wd->top;
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wd->top = ittop;
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o = wd->top->base;
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evas_object_show(o);
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if (wd->oldtop)
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{
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if (elm_object_focus_get(wd->oldtop->content))
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elm_widget_focused_object_clear(wd->oldtop->content);
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if (wd->oldtop->popme)
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edje_object_signal_emit(o, "elm,action,show", "elm");
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else
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edje_object_signal_emit(o, "elm,action,push", "elm");
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}
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else
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edje_object_signal_emit(o, "elm,action,push", "elm");
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onshow = edje_object_data_get(o, "onshow");
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if (onshow)
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{
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if (!strcmp(onshow, "raise")) evas_object_raise(o);
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else if (!strcmp(onshow, "lower")) evas_object_lower(o);
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}
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}
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}
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static void
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_move(void *data, Evas *e __UNUSED__, Evas_Object *obj, void *event_info __UNUSED__)
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{
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Widget_Data *wd = elm_widget_data_get(data);
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Evas_Coord x, y;
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Eina_List *l;
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Item *it;
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if (!wd) return;
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evas_object_geometry_get(obj, &x, &y, NULL, NULL);
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EINA_LIST_FOREACH(wd->stack, l, it)
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evas_object_move(it->base, x, y);
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}
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static void
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_content_del(void *data, Evas *e __UNUSED__, Evas_Object *obj, void *event_info __UNUSED__)
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{
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Widget_Data *wd = elm_widget_data_get(data);
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Eina_List *l;
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Item *it;
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if (!wd) return;
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l = _item_get(data, obj);
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if (!l) return;
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it = l->data;
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wd->stack = eina_list_remove_list(wd->stack, l);
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evas_object_event_callback_del_full
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(obj, EVAS_CALLBACK_CHANGED_SIZE_HINTS, _changed_size_hints, it);
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evas_object_del(it->base);
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_eval_top(data);
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free(it);
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}
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static void
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_resize(void *data, Evas *e __UNUSED__, Evas_Object *obj, void *event_info __UNUSED__)
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{
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Widget_Data *wd = elm_widget_data_get(data);
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Evas_Coord w, h;
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Eina_List *l;
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Item *it;
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if (!wd) return;
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evas_object_geometry_get(obj, NULL, NULL, &w, &h);
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EINA_LIST_FOREACH(wd->stack, l, it) evas_object_resize(it->base, w, h);
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}
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static void
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_show_finished_cb(void *data, Evas_Object *o __UNUSED__, const char *emission __UNUSED__, const char *source __UNUSED__)
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{
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Item *it = data;
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Evas_Object *obj = it->obj;
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Evas_Object *content = it->content;
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evas_object_smart_callback_call(obj, SIG_SHOW_FINISHED, content);
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}
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static void
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_hide_finished_cb(void *data, Evas_Object *obj __UNUSED__, const char *emission __UNUSED__, const char *source __UNUSED__)
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{
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Item *it = data;
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Evas_Object *obj2 = it->obj;
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Evas_Object *content = it->content;
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if (it->popme)
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{
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evas_object_del(it->base);
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evas_object_event_callback_del_full(content,
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EVAS_CALLBACK_CHANGED_SIZE_HINTS,
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_changed_size_hints,
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it);
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evas_object_event_callback_del(content,
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EVAS_CALLBACK_DEL,
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_content_del);
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evas_object_del(content);
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free(it);
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}
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else
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{
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evas_object_hide(it->base);
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edje_object_signal_emit(it->base, "elm,action,reset", "elm");
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edje_object_message_signal_process(it->base);
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evas_object_hide(content);
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}
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evas_object_smart_callback_call(obj2, SIG_HIDE_FINISHED, content);
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_sizing_eval(obj2);
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}
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EAPI Evas_Object *
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elm_pager_add(Evas_Object *parent)
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{
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Evas_Object *obj;
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Evas *e;
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Widget_Data *wd;
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ELM_WIDGET_STANDARD_SETUP(wd, Widget_Data, parent, e, obj, NULL);
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ELM_SET_WIDTYPE(widtype, "pager");
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elm_widget_type_set(obj, "pager");
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elm_widget_sub_object_add(parent, obj);
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elm_widget_data_set(obj, wd);
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elm_widget_del_hook_set(obj, _del_hook);
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elm_widget_theme_hook_set(obj, _theme_hook);
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elm_widget_focus_next_hook_set(obj, _elm_pager_focus_next_hook);
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elm_widget_can_focus_set(obj, EINA_FALSE);
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wd->clip = evas_object_rectangle_add(e);
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elm_widget_resize_object_set(obj, wd->clip);
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elm_widget_sub_object_add(obj, wd->clip);
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wd->rect = evas_object_rectangle_add(e);
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elm_widget_sub_object_add(obj, wd->rect);
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evas_object_color_set(wd->rect, 255, 255, 255, 0);
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evas_object_clip_set(wd->rect, wd->clip);
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evas_object_event_callback_add(obj, EVAS_CALLBACK_MOVE, _move, obj);
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evas_object_event_callback_add(obj, EVAS_CALLBACK_RESIZE, _resize, obj);
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evas_object_smart_callbacks_descriptions_set(obj, _signals);
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_mirrored_set(obj, elm_widget_mirrored_get(obj));
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_sizing_eval(obj);
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return obj;
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}
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EAPI void
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elm_pager_content_push(Evas_Object *obj, Evas_Object *content)
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{
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ELM_CHECK_WIDTYPE(obj, widtype);
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Widget_Data *wd = elm_widget_data_get(obj);
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Evas_Coord x, y, w, h;
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Item *it;
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if ((!wd) || (!content)) return;
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if (_item_get(obj, content)) return;
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it = ELM_NEW(Item);
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if (!it) return;
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it->obj = obj;
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it->content = content;
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it->base = edje_object_add(evas_object_evas_get(obj));
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evas_object_smart_member_add(it->base, obj);
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evas_object_geometry_get(obj, &x, &y, &w, &h);
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evas_object_move(it->base, x, y);
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evas_object_resize(it->base, w, h);
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evas_object_clip_set(it->base, wd->clip);
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elm_widget_sub_object_add(obj, it->base);
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elm_widget_sub_object_add(obj, it->content);
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_elm_theme_object_set(obj,
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it->base,
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"pager",
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"base",
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elm_widget_style_get(obj));
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edje_object_signal_callback_add
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(it->base, "elm,action,show,finished", "", _show_finished_cb, it);
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edje_object_signal_callback_add(it->base,
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"elm,action,hide,finished",
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"",
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_hide_finished_cb,
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it);
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evas_object_event_callback_add(it->content,
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EVAS_CALLBACK_CHANGED_SIZE_HINTS,
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_changed_size_hints,
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it);
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evas_object_event_callback_add(it->content,
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EVAS_CALLBACK_DEL,
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_content_del,
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obj);
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edje_object_part_swallow(it->base, "elm.swallow.content", it->content);
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edje_object_size_min_calc(it->base, &it->minw, &it->minh);
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evas_object_data_set(it->base, "_elm_leaveme", obj);
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evas_object_show(it->content);
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wd->stack = eina_list_append(wd->stack, it);
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_eval_top(obj);
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_sizing_eval(obj);
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}
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EAPI void
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elm_pager_content_pop(Evas_Object *obj)
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{
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ELM_CHECK_WIDTYPE(obj, widtype);
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Widget_Data *wd = elm_widget_data_get(obj);
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Eina_List *ll;
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Item *it;
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if (!wd) return;
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if (!wd->stack) return;
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it = eina_list_last(wd->stack)->data;
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it->popme = EINA_TRUE;
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ll = eina_list_last(wd->stack);
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if (ll)
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{
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ll = ll->prev;
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if (!ll)
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{
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Evas_Object *o;
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const char *onhide;
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wd->top = it;
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o = wd->top->base;
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edje_object_signal_emit(o, "elm,action,pop", "elm");
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wd->stack = eina_list_remove(wd->stack, it);
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onhide = edje_object_data_get(o, "onhide");
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if (onhide)
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{
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if (!strcmp(onhide, "raise")) evas_object_raise(o);
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else if (!strcmp(onhide, "lower")) evas_object_lower(o);
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}
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wd->top = NULL;
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}
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else
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{
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it = ll->data;
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elm_pager_content_promote(obj, it->content);
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}
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}
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}
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EAPI void
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elm_pager_content_promote(Evas_Object *obj, Evas_Object *content)
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{
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ELM_CHECK_WIDTYPE(obj, widtype);
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Widget_Data *wd = elm_widget_data_get(obj);
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Eina_List *l;
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if (!wd) return;
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l = _item_get(obj, content);
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if (!l) return;
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wd->stack = eina_list_demote_list(wd->stack, l);
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_eval_top(obj);
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}
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EAPI Evas_Object *
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elm_pager_content_bottom_get(const Evas_Object *obj)
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{
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ELM_CHECK_WIDTYPE(obj, widtype) NULL;
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Widget_Data *wd = elm_widget_data_get(obj);
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Item *it;
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if (!wd) return NULL;
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if (!wd->stack) return NULL;
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it = wd->stack->data;
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return it->content;
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}
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EAPI Evas_Object *
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elm_pager_content_top_get(const Evas_Object *obj)
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{
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ELM_CHECK_WIDTYPE(obj, widtype) NULL;
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Widget_Data *wd = elm_widget_data_get(obj);
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if (!wd) return NULL;
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if (!wd->top) return NULL;
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return wd->top->content;
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}
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