343 lines
10 KiB
C
343 lines
10 KiB
C
#ifdef HAVE_CONFIG_H
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# include "elementary_config.h"
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#endif
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#include <Elementary.h>
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#include "elm_priv.h"
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// FIXME: handle if canvas resizes
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typedef struct _Widget_Data Widget_Data;
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struct _Widget_Data
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{
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Evas_Object *obj;
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Evas_Object *content;
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int last_calc_count;
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Evas_Coord maxminw, maxminh;
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Eina_Bool eval : 1;
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Eina_Bool szeval : 1;
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Eina_Bool maxmin : 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 Eina_Bool _focus_next_hook(const Evas_Object *obj, Elm_Focus_Direction dir, Evas_Object **next);
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static void _sizing_eval(Evas_Object *obj);
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static void _eval(Evas_Object *obj);
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static void _changed(Evas_Object *obj);
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static void _move(void *data EINA_UNUSED, Evas *e EINA_UNUSED, Evas_Object *obj, void *event_info EINA_UNUSED);
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static void _resize(void *data EINA_UNUSED, Evas *e EINA_UNUSED, Evas_Object *obj, void *event_info EINA_UNUSED);
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static void _child_change(void *data EINA_UNUSED, Evas *e EINA_UNUSED, Evas_Object *obj, void *event_info EINA_UNUSED);
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static void _child_del(void *data, Evas *e EINA_UNUSED, Evas_Object *obj, void *event_info EINA_UNUSED);
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static void _content_set_hook(Evas_Object *obj, const char *part, Evas_Object *content);
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static Evas_Object *_content_get_hook(const Evas_Object *obj, const char *part);
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static Evas_Object *_content_unset_hook(Evas_Object *obj, const char *part);
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static const char SIG_REALIZE[] = "realize";
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static const char SIG_UNREALIZE[] = "unrealize";
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static const Evas_Smart_Cb_Description _signals[] = {
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{SIG_REALIZE, ""},
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{SIG_UNREALIZE, ""},
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{NULL, NULL}
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};
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static int fac = 0;
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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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if (wd->content)
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{
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Evas_Object *o = wd->content;
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evas_object_event_callback_del_full(o,
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EVAS_CALLBACK_CHANGED_SIZE_HINTS,
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_child_change, obj);
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evas_object_event_callback_del_full(o,
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EVAS_CALLBACK_DEL,
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_child_del, obj);
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wd->content = NULL;
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evas_object_del(o);
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fac--;
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// DBG("FAC-- = %i", fac);
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}
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free(wd);
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}
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static Eina_Bool
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_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->content)) return EINA_FALSE;
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cur = wd->content;
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return efl_ui_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, maxw = -1, maxh = -1;
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if (!wd) return;
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if (!wd->content) return;
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evas_object_size_hint_combined_min_get(wd->content, &minw, &minh);
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evas_object_size_hint_max_get(wd->content, &maxw, &maxh);
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if (wd->maxmin)
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{
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if (minw > wd->maxminw) wd->maxminw = minw;
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if (minh > wd->maxminh) wd->maxminh = minh;
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evas_object_size_hint_min_set(obj, wd->maxminw, wd->maxminh);
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}
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else
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{
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evas_object_size_hint_min_set(obj, minw, minh);
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}
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evas_object_size_hint_max_set(obj, maxw, maxh);
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// DBG("FAC SZ: %i %i | %i %i", minw, minh, maxw, maxh);
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}
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static void
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_eval(Evas_Object *obj)
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{
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Evas_Coord x, y, w, h, cvx, cvy, cvw, cvh;
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Widget_Data *wd = elm_widget_data_get(obj);
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if (!wd) return;
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evas_event_freeze(evas_object_evas_get(obj));
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evas_object_geometry_get(obj, &x, &y, &w, &h);
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if (w < 1) w = 1;
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if (h < 1) h = 1;
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evas_output_viewport_get(evas_object_evas_get(obj),
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&cvx, &cvy, &cvw, &cvh);
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if ((cvw < 1) || (cvh < 1)) return;
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// need some fuzz value that's beyond the current viewport
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// for now just make it the viewport * 3 in size (so 1 vp in each direction)
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/*
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cvx -= cvw;
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cvy -= cvh;
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cvw *= 3;
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cvh *= 3;
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*/
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if (ELM_RECTS_INTERSECT(x, y, w, h, cvx, cvy, cvw, cvh))
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{
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if (!wd->content)
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{
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// DBG(" + %i %i %ix%i <> %i %i %ix%i", x, y, w, h, cvx, cvy, cvw, cvh);
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evas_object_smart_callback_call(obj, SIG_REALIZE, NULL);
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if (wd->content)
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{
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if (evas_object_smart_data_get(wd->content))
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evas_object_smart_calculate(wd->content);
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}
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wd->last_calc_count =
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evas_smart_objects_calculate_count_get(evas_object_evas_get(obj));
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}
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}
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else
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{
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if (wd->content)
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{
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if (wd->last_calc_count !=
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evas_smart_objects_calculate_count_get(evas_object_evas_get(obj)))
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evas_object_smart_callback_call(obj, SIG_UNREALIZE, NULL);
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}
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}
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evas_event_thaw(evas_object_evas_get(obj));
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evas_event_thaw_eval(evas_object_evas_get(obj));
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}
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static void
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_changed(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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if (wd->eval)
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{
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_eval(obj);
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wd->eval = EINA_FALSE;
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}
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if (wd->szeval)
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{
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_sizing_eval(obj);
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wd->szeval = EINA_FALSE;
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}
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}
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static void
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_move(void *data EINA_UNUSED, Evas *e EINA_UNUSED, Evas_Object *obj, void *event_info EINA_UNUSED)
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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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wd->eval = EINA_TRUE;
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evas_object_smart_changed(obj);
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}
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static void
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_resize(void *data EINA_UNUSED, Evas *e EINA_UNUSED, Evas_Object *obj, void *event_info EINA_UNUSED)
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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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wd->eval = EINA_TRUE;
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evas_object_smart_changed(obj);
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}
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static void
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_child_change(void *data EINA_UNUSED, Evas *e EINA_UNUSED, Evas_Object *obj EINA_UNUSED, void *event_info EINA_UNUSED)
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{
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Widget_Data *wd = elm_widget_data_get(data);
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if (!wd) return;
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wd->eval = EINA_TRUE;
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wd->szeval = EINA_TRUE;
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evas_object_smart_changed(data);
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}
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static void
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_child_del(void *data, Evas *e EINA_UNUSED, Evas_Object *obj, void *event_info EINA_UNUSED)
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{
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Evas_Object *fobj = data;
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Widget_Data *wd = elm_widget_data_get(fobj);
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if (!wd) return;
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if (wd->content != obj) return;
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evas_object_event_callback_del_full(wd->content,
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EVAS_CALLBACK_CHANGED_SIZE_HINTS,
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_child_change, obj);
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evas_object_event_callback_del_full(wd->content,
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EVAS_CALLBACK_DEL,
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_child_del, obj);
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wd->content = NULL;
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fac--;
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// DBG("FAC-- = %i", fac);
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}
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static Evas_Object *
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_content_unset_hook(Evas_Object *obj, const char *part)
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{
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ELM_CHECK_WIDTYPE(obj, widtype) NULL;
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Widget_Data *wd;
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Evas_Object *content;
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if (part && strcmp(part, "default")) return NULL;
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wd = elm_widget_data_get(obj);
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if (!wd || !wd->content) return NULL;
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content = wd->content;
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evas_object_event_callback_del_full(content,
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EVAS_CALLBACK_CHANGED_SIZE_HINTS,
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_child_change, obj);
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evas_object_event_callback_del_full(content,
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EVAS_CALLBACK_DEL,
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_child_del, obj);
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wd->content = NULL;
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fac--;
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// DBG("FAC-- = %i", fac);
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return content;
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}
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static void
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_content_set_hook(Evas_Object *obj, const char *part, Evas_Object *content)
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{
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ELM_CHECK_WIDTYPE(obj, widtype);
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Widget_Data *wd;
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Evas_Object *prev_content;
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if (part && strcmp(part, "default")) return;
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wd = elm_widget_data_get(obj);
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if (!wd) return;
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if (wd->content == content) return;
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prev_content = _content_unset_hook(obj, part);
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evas_object_del(prev_content);
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wd->content = content;
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if (!content) return;
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elm_widget_resize_object_set(obj, content);
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evas_object_event_callback_add(content, EVAS_CALLBACK_DEL, _child_del, obj);
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evas_object_event_callback_add(content, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
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_child_change, obj);
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wd->eval = EINA_TRUE;
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wd->szeval = EINA_TRUE;
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evas_object_smart_changed(obj);
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fac++;
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}
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static Evas_Object *
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_content_get_hook(const Evas_Object *obj, const char *part)
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{
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ELM_CHECK_WIDTYPE(obj, widtype) NULL;
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Widget_Data *wd;
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if (part && strcmp(part, "default")) return NULL;
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wd = elm_widget_data_get(obj);
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if (!wd) return NULL;
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return wd->content;
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}
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EAPI Evas_Object *
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elm_factory_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, "factory");
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elm_widget_type_set(obj, "factory");
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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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efl_ui_widget_focus_next_hook_set(obj, _focus_next_hook);
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elm_widget_content_set_hook_set(obj, _content_set_hook);
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elm_widget_content_get_hook_set(obj, _content_get_hook);
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elm_widget_content_unset_hook_set(obj, _content_unset_hook);
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elm_widget_can_focus_set(obj, EINA_FALSE);
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elm_widget_changed_hook_set(obj, _changed);
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evas_object_event_callback_add(obj, EVAS_CALLBACK_MOVE, _move, NULL);
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evas_object_event_callback_add(obj, EVAS_CALLBACK_RESIZE, _resize, NULL);
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evas_object_smart_callbacks_descriptions_set(obj, _signals);
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wd->obj = obj;
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wd->last_calc_count = -1;
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return obj;
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}
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EAPI void
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elm_factory_maxmin_mode_set(Evas_Object *obj, Eina_Bool enabled)
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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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if (!wd) return;
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wd->maxmin = !!enabled;
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}
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EAPI Eina_Bool
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elm_factory_maxmin_mode_get(const Evas_Object *obj)
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{
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ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
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Widget_Data *wd = elm_widget_data_get(obj);
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if (!wd) return EINA_FALSE;
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return wd->maxmin;
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}
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EAPI void
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elm_factory_maxmin_reset_set(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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if (!wd) return;
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wd->maxminw = 0;
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wd->maxminh = 0;
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wd->eval = EINA_TRUE;
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wd->szeval = EINA_TRUE;
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evas_object_smart_changed(obj);
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}
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