src/lib/elm_frame.c

   1 #include <Elementary.h>
   2 #include "elm_priv.h"
   3
   4 typedef struct _Widget_Data Widget_Data;
   5
   6 struct _Widget_Data
   7 {
   8    Evas_Object *frm;
   9    Evas_Object *content;
  10    const char *label;
  11 };
  12
  13 static const char *widtype = NULL;
  14 static void _del_hook(Evas_Object *obj);
  15 static void _mirrored_set(Evas_Object *obj, Eina_Bool rtl);
  16 static void _theme_hook(Evas_Object *obj);
  17 static void _sizing_eval(Evas_Object *obj);
  18 static void _changed_size_hints(void *data, Evas *e, Evas_Object *obj, void *event_info);
  19 static void _sub_del(void *data, Evas_Object *obj, void *event_info);
  20
  21 static void
  22 _del_hook(Evas_Object *obj)
  23 {
  24    Widget_Data *wd = elm_widget_data_get(obj);
  25    if (!wd) return;
  26    if (wd->label) eina_stringshare_del(wd->label);
  27    free(wd);
  28 }
  29
  30 static void
  31 _mirrored_set(Evas_Object *obj, Eina_Bool rtl)
  32 {
  33    Widget_Data *wd = elm_widget_data_get(obj);
  34    if (!wd) return;
  35    edje_object_mirrored_set(wd->frm, rtl);
  36 }
  37
  38 static void
  39 _theme_hook(Evas_Object *obj)
  40 {
  41    Widget_Data *wd = elm_widget_data_get(obj);
  42    if (!wd) return;
  43    _elm_widget_mirrored_reload(obj);
  44    _mirrored_set(obj, elm_widget_mirrored_get(obj));
  45    _elm_theme_object_set(obj, wd->frm, "frame", "base", elm_widget_style_get(obj));
  46    edje_object_part_text_set(wd->frm, "elm.text", wd->label);
  47    if (wd->content)
  48      edje_object_part_swallow(wd->frm, "elm.swallow.content", wd->content);
  49    edje_object_scale_set(wd->frm, elm_widget_scale_get(obj) * _elm_config->scale);
  50    _sizing_eval(obj);
  51 }
  52
  53 static Eina_Bool
  54 _elm_frame_focus_next_hook(const Evas_Object *obj, Elm_Focus_Direction dir, Evas_Object **next)
  55 {
  56    Widget_Data *wd = elm_widget_data_get(obj);
  57    Evas_Object *cur;
  58
  59    if ((!wd) || (!wd->content))
  60      return EINA_FALSE;
  61
  62    cur = wd->content;
  63
  64    /* Try Focus cycle in subitem */
  65    return elm_widget_focus_next_get(cur, dir, next);
  66 }
  67
  68 static void
  69 _sizing_eval(Evas_Object *obj)
  70 {
  71    Widget_Data *wd = elm_widget_data_get(obj);
  72    Evas_Coord minw = -1, minh = -1;
  73    if (!wd) return;
  74    edje_object_size_min_calc(wd->frm, &minw, &minh);
  75    evas_object_size_hint_min_set(obj, minw, minh);
  76    evas_object_size_hint_max_set(obj, -1, -1);
  77 }
  78
  79 static void
  80 _changed_size_hints(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
  81 {
  82    Widget_Data *wd = elm_widget_data_get(data);
  83    // FIXME: why is this needed? how does edje get this unswallowed or
  84    // lose its callbacks to edje
  85    if (!wd) return;
  86    edje_object_part_swallow(wd->frm, "elm.swallow.content", wd->content);
  87    _sizing_eval(data);
  88 }
  89
  90 static void
  91 _sub_del(void *data __UNUSED__, Evas_Object *obj, void *event_info)
  92 {
  93    Widget_Data *wd = elm_widget_data_get(obj);
  94    Evas_Object *sub = event_info;
  95    if (!wd) return;
  96    if (sub == wd->content)
  97      {
  98         evas_object_event_callback_del_full(sub, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
  99                                             _changed_size_hints, obj);
 100         wd->content = NULL;
 101         _sizing_eval(obj);
 102      }
 103 }
 104
 105 static void
 106 _elm_frame_label_set(Evas_Object *obj, const char *item, const char *label)
 107 {
 108    ELM_CHECK_WIDTYPE(obj, widtype);
 109    Widget_Data *wd = elm_widget_data_get(obj);
 110    if (item && strcmp(item, "default")) return;
 111    if (!wd) return;
 112    eina_stringshare_replace(&(wd->label), label);
 113    edje_object_part_text_set(wd->frm, "elm.text", wd->label);
 114    _sizing_eval(obj);
 115 }
 116
 117 static const char *
 118 _elm_frame_label_get(const Evas_Object *obj, const char *item)
 119 {
 120    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 121    Widget_Data *wd = elm_widget_data_get(obj);
 122    if (item && strcmp(item, "default")) return NULL;
 123    if (!wd) return NULL;
 124    return wd->label;
 125 }
 126
 127 static void
 128 _content_set_hook(Evas_Object *obj, const char *part, Evas_Object *content)
 129 {
 130    ELM_CHECK_WIDTYPE(obj, widtype);
 131    Widget_Data *wd;
 132
 133    if (part && strcmp(part, "default")) return;
 134    wd = elm_widget_data_get(obj);
 135    if (!wd) return;
 136    if (wd->content == content) return;
 137    if (wd->content) evas_object_del(wd->content);
 138    wd->content = content;
 139    if (content)
 140      {
 141         elm_widget_sub_object_add(obj, content);
 142         evas_object_event_callback_add(content, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 143                                        _changed_size_hints, obj);
 144         edje_object_part_swallow(wd->frm, "elm.swallow.content", content);
 145      }
 146    _sizing_eval(obj);
 147 }
 148
 149 static Evas_Object *
 150 _content_get_hook(const Evas_Object *obj, const char *part)
 151 {
 152    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 153    Widget_Data *wd;
 154
 155    if (part && strcmp(part, "default")) return NULL;
 156    wd = elm_widget_data_get(obj);
 157    if (!wd) return NULL;
 158    return wd->content;
 159 }
 160
 161 static Evas_Object *
 162 _content_unset_hook(Evas_Object *obj, const char *part)
 163 {
 164    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 165    Widget_Data *wd;
 166    Evas_Object *content;
 167    if (part && strcmp(part, "default")) return NULL;
 168    wd = elm_widget_data_get(obj);
 169    if (!wd) return NULL;
 170    if (!wd->content) return NULL;
 171    content = wd->content;
 172    elm_widget_sub_object_del(obj, wd->content);
 173    evas_object_event_callback_del_full(wd->content,
 174                                        EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 175                                        _changed_size_hints, obj);
 176    edje_object_part_unswallow(wd->frm, wd->content);
 177    wd->content = NULL;
 178    return content;
 179 }
 180
 181 EAPI Evas_Object *
 182 elm_frame_add(Evas_Object *parent)
 183 {
 184    Evas_Object *obj;
 185    Evas *e;
 186    Widget_Data *wd;
 187
 188    ELM_WIDGET_STANDARD_SETUP(wd, Widget_Data, parent, e, obj, NULL);
 189
 190    ELM_SET_WIDTYPE(widtype, "frame");
 191    elm_widget_type_set(obj, "frame");
 192    elm_widget_sub_object_add(parent, obj);
 193    elm_widget_data_set(obj, wd);
 194    elm_widget_del_hook_set(obj, _del_hook);
 195    elm_widget_theme_hook_set(obj, _theme_hook);
 196    elm_widget_focus_next_hook_set(obj, _elm_frame_focus_next_hook);
 197    elm_widget_can_focus_set(obj, EINA_FALSE);
 198    elm_widget_text_set_hook_set(obj, _elm_frame_label_set);
 199    elm_widget_text_get_hook_set(obj, _elm_frame_label_get);
 200    elm_widget_content_set_hook_set(obj, _content_set_hook);
 201    elm_widget_content_get_hook_set(obj, _content_get_hook);
 202    elm_widget_content_unset_hook_set(obj, _content_unset_hook);
 203
 204    wd->frm = edje_object_add(e);
 205    _elm_theme_object_set(obj, wd->frm, "frame", "base", "default");
 206    elm_widget_resize_object_set(obj, wd->frm);
 207
 208    evas_object_smart_callback_add(obj, "sub-object-del", _sub_del, obj);
 209
 210    _mirrored_set(obj, elm_widget_mirrored_get(obj));
 211    _sizing_eval(obj);
 212    return obj;
 213 }
 214
 215 EAPI void
 216 elm_frame_label_set(Evas_Object *obj, const char *label)
 217 {
 218    _elm_frame_label_set(obj, NULL, label);
 219 }
 220
 221 EAPI const char *
 222 elm_frame_label_get(const Evas_Object *obj)
 223 {
 224    return _elm_frame_label_get(obj, NULL);
 225 }
 226
 227 EAPI void
 228 elm_frame_content_set(Evas_Object *obj, Evas_Object *content)
 229 {
 230    _content_set_hook(obj, NULL, content);
 231 }
 232
 233 EAPI Evas_Object *
 234 elm_frame_content_get(const Evas_Object *obj)
 235 {
 236    return _content_get_hook(obj, NULL);
 237 }
 238
 239 EAPI Evas_Object *
 240 elm_frame_content_unset(Evas_Object *obj)
 241 {
 242    return _content_unset_hook(obj, NULL);
 243 }