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    Eina_Bool collapsed : 1;
  12    Eina_Bool collapsible : 1;
  13 };
  14
  15 static const char SIG_CLICKED[] = "clicked";
  16
  17 static const Evas_Smart_Cb_Description _signals[] = {
  18    {SIG_CLICKED, ""},
  19    {NULL, NULL}
  20 };
  21
  22 static const char *widtype = NULL;
  23 static void _del_hook(Evas_Object *obj);
  24 static void _mirrored_set(Evas_Object *obj, Eina_Bool rtl);
  25 static void _theme_hook(Evas_Object *obj);
  26 static void _sizing_eval(Evas_Object *obj);
  27 static void _changed_size_hints(void *data, Evas *e, Evas_Object *obj, void *event_info);
  28 static void _sub_del(void *data, Evas_Object *obj, void *event_info);
  29
  30 static void
  31 _del_hook(Evas_Object *obj)
  32 {
  33    Widget_Data *wd = elm_widget_data_get(obj);
  34    if (!wd) return;
  35    if (wd->label) eina_stringshare_del(wd->label);
  36    free(wd);
  37 }
  38
  39 static void
  40 _mirrored_set(Evas_Object *obj, Eina_Bool rtl)
  41 {
  42    Widget_Data *wd = elm_widget_data_get(obj);
  43    if (!wd) return;
  44    edje_object_mirrored_set(wd->frm, rtl);
  45 }
  46
  47 static void
  48 _theme_hook(Evas_Object *obj)
  49 {
  50    Widget_Data *wd = elm_widget_data_get(obj);
  51    if (!wd) return;
  52    _elm_widget_mirrored_reload(obj);
  53    _mirrored_set(obj, elm_widget_mirrored_get(obj));
  54    _elm_theme_object_set(obj, wd->frm, "frame", "base", elm_widget_style_get(obj));
  55    edje_object_part_text_set(wd->frm, "elm.text", wd->label);
  56    if (wd->content)
  57      edje_object_part_swallow(wd->frm, "elm.swallow.content", wd->content);
  58    edje_object_scale_set(wd->frm, elm_widget_scale_get(obj) * _elm_config->scale);
  59    _sizing_eval(obj);
  60 }
  61
  62 static Eina_Bool
  63 _elm_frame_focus_next_hook(const Evas_Object *obj, Elm_Focus_Direction dir, Evas_Object **next)
  64 {
  65    Widget_Data *wd = elm_widget_data_get(obj);
  66    Evas_Object *cur;
  67
  68    if ((!wd) || (!wd->content))
  69      return EINA_FALSE;
  70
  71    cur = wd->content;
  72
  73    /* Try Focus cycle in subitem */
  74    return elm_widget_focus_next_get(cur, dir, next);
  75 }
  76
  77 static void
  78 _sizing_eval(Evas_Object *obj)
  79 {
  80    Widget_Data *wd = elm_widget_data_get(obj);
  81    Evas_Coord minw = -1, minh = -1;
  82    if (!wd) return;
  83    edje_object_size_min_calc(wd->frm, &minw, &minh);
  84    evas_object_size_hint_min_set(obj, minw, minh);
  85    evas_object_size_hint_max_set(obj, -1, -1);
  86 }
  87
  88 static void
  89 _changed_size_hints(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
  90 {
  91    Widget_Data *wd = elm_widget_data_get(data);
  92    // FIXME: why is this needed? how does edje get this unswallowed or
  93    // lose its callbacks to edje
  94    if (!wd) return;
  95    edje_object_part_swallow(wd->frm, "elm.swallow.content", wd->content);
  96    _sizing_eval(data);
  97 }
  98
  99 static void
 100 _sub_del(void *data __UNUSED__, Evas_Object *obj, void *event_info)
 101 {
 102    Widget_Data *wd = elm_widget_data_get(obj);
 103    Evas_Object *sub = event_info;
 104    if (!wd) return;
 105    if (sub == wd->content)
 106      {
 107         evas_object_event_callback_del_full(sub, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 108                                             _changed_size_hints, obj);
 109         wd->content = NULL;
 110         _sizing_eval(obj);
 111      }
 112 }
 113
 114 static void
 115 _elm_frame_label_set(Evas_Object *obj, const char *item, const char *label)
 116 {
 117    ELM_CHECK_WIDTYPE(obj, widtype);
 118    Widget_Data *wd = elm_widget_data_get(obj);
 119    if (item && strcmp(item, "default")) return;
 120    if (!wd) return;
 121    eina_stringshare_replace(&(wd->label), label);
 122    edje_object_part_text_set(wd->frm, "elm.text", wd->label);
 123    _sizing_eval(obj);
 124 }
 125
 126 static const char *
 127 _elm_frame_label_get(const Evas_Object *obj, const char *item)
 128 {
 129    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 130    Widget_Data *wd = elm_widget_data_get(obj);
 131    if (item && strcmp(item, "default")) return NULL;
 132    if (!wd) return NULL;
 133    return wd->label;
 134 }
 135
 136 static void
 137 _content_set_hook(Evas_Object *obj, const char *part, Evas_Object *content)
 138 {
 139    ELM_CHECK_WIDTYPE(obj, widtype);
 140    Widget_Data *wd;
 141
 142    if (part && strcmp(part, "default")) return;
 143    wd = elm_widget_data_get(obj);
 144    if (!wd) return;
 145    if (wd->content == content) return;
 146    if (wd->content) evas_object_del(wd->content);
 147    wd->content = content;
 148    if (content)
 149      {
 150         elm_widget_sub_object_add(obj, content);
 151         evas_object_event_callback_add(content, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 152                                        _changed_size_hints, obj);
 153         edje_object_part_swallow(wd->frm, "elm.swallow.content", content);
 154      }
 155    _sizing_eval(obj);
 156 }
 157
 158 static Evas_Object *
 159 _content_get_hook(const Evas_Object *obj, const char *part)
 160 {
 161    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 162    Widget_Data *wd;
 163
 164    if (part && strcmp(part, "default")) return NULL;
 165    wd = elm_widget_data_get(obj);
 166    if (!wd) return NULL;
 167    return wd->content;
 168 }
 169
 170 static Evas_Object *
 171 _content_unset_hook(Evas_Object *obj, const char *part)
 172 {
 173    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 174    Widget_Data *wd;
 175    Evas_Object *content;
 176    if (part && strcmp(part, "default")) return NULL;
 177    wd = elm_widget_data_get(obj);
 178    if (!wd) return NULL;
 179    if (!wd->content) return NULL;
 180    content = wd->content;
 181    elm_widget_sub_object_del(obj, wd->content);
 182    evas_object_event_callback_del_full(wd->content,
 183                                        EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 184                                        _changed_size_hints, obj);
 185    edje_object_part_unswallow(wd->frm, wd->content);
 186    wd->content = NULL;
 187    return content;
 188 }
 189
 190 static void
 191 _signal_click(Evas_Object *fr, Evas_Object *obj __UNUSED__, const char *emission __UNUSED__, const char *source __UNUSED__)
 192 {
 193    Widget_Data *wd;
 194    wd = elm_widget_data_get(fr);
 195    if (!wd) return;
 196    evas_object_smart_callback_call(fr, SIG_CLICKED, NULL);
 197    if (!wd->collapsible) return;
 198    edje_object_signal_emit(wd->frm, "elm,action,collapse", "elm");
 199    wd->collapsed++;
 200 }
 201
 202 EAPI Evas_Object *
 203 elm_frame_add(Evas_Object *parent)
 204 {
 205    Evas_Object *obj;
 206    Evas *e;
 207    Widget_Data *wd;
 208
 209    ELM_WIDGET_STANDARD_SETUP(wd, Widget_Data, parent, e, obj, NULL);
 210
 211    ELM_SET_WIDTYPE(widtype, "frame");
 212    elm_widget_type_set(obj, "frame");
 213    elm_widget_sub_object_add(parent, obj);
 214    elm_widget_data_set(obj, wd);
 215    elm_widget_del_hook_set(obj, _del_hook);
 216    elm_widget_theme_hook_set(obj, _theme_hook);
 217    elm_widget_focus_next_hook_set(obj, _elm_frame_focus_next_hook);
 218    elm_widget_can_focus_set(obj, EINA_FALSE);
 219    elm_widget_text_set_hook_set(obj, _elm_frame_label_set);
 220    elm_widget_text_get_hook_set(obj, _elm_frame_label_get);
 221    elm_widget_content_set_hook_set(obj, _content_set_hook);
 222    elm_widget_content_get_hook_set(obj, _content_get_hook);
 223    elm_widget_content_unset_hook_set(obj, _content_unset_hook);
 224
 225    wd->frm = edje_object_add(e);
 226    _elm_theme_object_set(obj, wd->frm, "frame", "base", "default");
 227    elm_widget_resize_object_set(obj, wd->frm);
 228
 229    evas_object_smart_callback_add(obj, "sub-object-del", _sub_del, obj);
 230    edje_object_signal_callback_add(wd->frm, "elm,action,click", "elm",
 231                                    (Edje_Signal_Cb)_signal_click, obj);
 232    evas_object_smart_callbacks_descriptions_set(obj, _signals);
 233
 234    _mirrored_set(obj, elm_widget_mirrored_get(obj));
 235    _sizing_eval(obj);
 236    return obj;
 237 }
 238
 239 EAPI void
 240 elm_frame_autocollapse_set(Evas_Object *obj, Eina_Bool enable)
 241 {
 242    Widget_Data *wd;
 243    ELM_CHECK_WIDTYPE(obj, widtype);
 244    wd = elm_widget_data_get(obj);
 245    if (!wd) return;
 246    wd->collapsible = !!enable;
 247 }
 248
 249 EAPI Eina_Bool
 250 elm_frame_autocollapse_get(Evas_Object *obj)
 251 {
 252    Widget_Data *wd;
 253    ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
 254    wd = elm_widget_data_get(obj);
 255    if (!wd) return EINA_FALSE;
 256    return wd->collapsible;
 257 }
 258
 259 EAPI void
 260 elm_frame_collapse_set(Evas_Object *obj, Eina_Bool enable)
 261 {
 262    Widget_Data *wd;
 263    ELM_CHECK_WIDTYPE(obj, widtype);
 264    wd = elm_widget_data_get(obj);
 265    if (!wd) return;
 266    enable = !!enable;
 267    if (wd->collapsed == enable) return;
 268    edje_object_signal_emit(wd->frm, "elm,action,collapse", "elm");
 269    wd->collapsed = enable;
 270 }
 271
 272 EAPI Eina_Bool
 273 elm_frame_collapse_get(Evas_Object *obj)
 274 {
 275    Widget_Data *wd;
 276    ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
 277    wd = elm_widget_data_get(obj);
 278    if (!wd) return EINA_FALSE;
 279    return wd->collapsed;
 280 }
 281
 282
 283 EAPI void
 284 elm_frame_label_set(Evas_Object *obj, const char *label)
 285 {
 286    _elm_frame_label_set(obj, NULL, label);
 287 }
 288
 289 EAPI const char *
 290 elm_frame_label_get(const Evas_Object *obj)
 291 {
 292    return _elm_frame_label_get(obj, NULL);
 293 }
 294
 295 EAPI void
 296 elm_frame_content_set(Evas_Object *obj, Evas_Object *content)
 297 {
 298    _content_set_hook(obj, NULL, content);
 299 }
 300
 301 EAPI Evas_Object *
 302 elm_frame_content_get(const Evas_Object *obj)
 303 {
 304    return _content_get_hook(obj, NULL);
 305 }
 306
 307 EAPI Evas_Object *
 308 elm_frame_content_unset(Evas_Object *obj)
 309 {
 310    return _content_unset_hook(obj, NULL);
 311 }