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 __UNUSED__, Evas_Object *content)
 129 {
 130    ELM_CHECK_WIDTYPE(obj, widtype);
 131    Widget_Data *wd = elm_widget_data_get(obj);
 132    if (!wd) return;
 133    if (wd->content == content) return;
 134    if (wd->content) evas_object_del(wd->content);
 135    wd->content = content;
 136    if (content)
 137      {
 138         elm_widget_sub_object_add(obj, content);
 139         evas_object_event_callback_add(content, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 140                                        _changed_size_hints, obj);
 141         edje_object_part_swallow(wd->frm, "elm.swallow.content", content);
 142      }
 143    _sizing_eval(obj);
 144 }
 145
 146 static Evas_Object *
 147 _content_get_hook(const Evas_Object *obj, const char *part __UNUSED__)
 148 {
 149    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 150    Widget_Data *wd = elm_widget_data_get(obj);
 151    if (!wd) return NULL;
 152    return wd->content;
 153 }
 154
 155 static Evas_Object *
 156 _content_unset_hook(Evas_Object *obj, const char *part __UNUSED__)
 157 {
 158    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 159    Widget_Data *wd = elm_widget_data_get(obj);
 160    Evas_Object *content;
 161    if (!wd) return NULL;
 162    if (!wd->content) return NULL;
 163    content = wd->content;
 164    elm_widget_sub_object_del(obj, wd->content);
 165    edje_object_part_unswallow(wd->frm, wd->content);
 166    wd->content = NULL;
 167    return content;
 168 }
 169
 170 EAPI Evas_Object *
 171 elm_frame_add(Evas_Object *parent)
 172 {
 173    Evas_Object *obj;
 174    Evas *e;
 175    Widget_Data *wd;
 176
 177    ELM_WIDGET_STANDARD_SETUP(wd, Widget_Data, parent, e, obj, NULL);
 178
 179    ELM_SET_WIDTYPE(widtype, "frame");
 180    elm_widget_type_set(obj, "frame");
 181    elm_widget_sub_object_add(parent, obj);
 182    elm_widget_data_set(obj, wd);
 183    elm_widget_del_hook_set(obj, _del_hook);
 184    elm_widget_theme_hook_set(obj, _theme_hook);
 185    elm_widget_focus_next_hook_set(obj, _elm_frame_focus_next_hook);
 186    elm_widget_can_focus_set(obj, EINA_FALSE);
 187    elm_widget_text_set_hook_set(obj, _elm_frame_label_set);
 188    elm_widget_text_get_hook_set(obj, _elm_frame_label_get);
 189    elm_widget_content_set_hook_set(obj, _content_set_hook);
 190    elm_widget_content_get_hook_set(obj, _content_get_hook);
 191    elm_widget_content_unset_hook_set(obj, _content_unset_hook);
 192
 193    wd->frm = edje_object_add(e);
 194    _elm_theme_object_set(obj, wd->frm, "frame", "base", "default");
 195    elm_widget_resize_object_set(obj, wd->frm);
 196
 197    evas_object_smart_callback_add(obj, "sub-object-del", _sub_del, obj);
 198
 199    _mirrored_set(obj, elm_widget_mirrored_get(obj));
 200    _sizing_eval(obj);
 201    return obj;
 202 }
 203
 204 EAPI void
 205 elm_frame_label_set(Evas_Object *obj, const char *label)
 206 {
 207    _elm_frame_label_set(obj, NULL, label);
 208 }
 209
 210 EAPI const char *
 211 elm_frame_label_get(const Evas_Object *obj)
 212 {
 213    return _elm_frame_label_get(obj, NULL);
 214 }
 215
 216 EAPI void
 217 elm_frame_content_set(Evas_Object *obj, Evas_Object *content)
 218 {
 219    _content_set_hook(obj, NULL, content);
 220 }
 221
 222 EAPI Evas_Object *
 223 elm_frame_content_get(const Evas_Object *obj)
 224 {
 225    return _content_get_hook(obj, NULL);
 226 }
 227
 228 EAPI Evas_Object *
 229 elm_frame_content_unset(Evas_Object *obj)
 230 {
 231    return _content_unset_hook(obj, NULL);
 232 }