src/lib/elm_bubble.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 *bbl;
   9    Evas_Object *content, *icon;
  10    const char *label, *info, *corner;
  11    Elm_Bubble_Pos pos;
  12 };
  13
  14 static const char *widtype = NULL;
  15 static void _del_hook(Evas_Object *obj);
  16 static void _mirrored_set(Evas_Object *obj, Eina_Bool rtl);
  17 static void _content_set_hook(Evas_Object *obj, const char *part, Evas_Object *content);
  18 static Evas_Object *_content_get_hook(const Evas_Object *obj, const char *part);
  19 static Evas_Object *_content_unset_hook(Evas_Object *obj, const char *part);
  20 static void _theme_hook(Evas_Object *obj);
  21 static void _sizing_eval(Evas_Object *obj);
  22 static void _changed_size_hints(void *data, Evas *e, Evas_Object *obj, void *event_info);
  23 static void _sub_del(void *data, Evas_Object *obj, void *event_info);
  24
  25 static const char SIG_CLICKED[] = "clicked";
  26
  27 static const Evas_Smart_Cb_Description _signals[] =
  28 {
  29      {SIG_CLICKED, ""},
  30      {NULL, NULL}
  31 };
  32
  33 static const char *corner_string[] =
  34 {
  35     "top_left",
  36     "top_right",
  37     "bottom_left",
  38     "bottom_right"
  39 };
  40
  41 static void
  42 _del_hook(Evas_Object *obj)
  43 {
  44    Widget_Data *wd = elm_widget_data_get(obj);
  45    if (!wd) return;
  46    if (wd->label) eina_stringshare_del(wd->label);
  47    if (wd->info) eina_stringshare_del(wd->info);
  48    if (wd->corner) eina_stringshare_del(wd->corner);
  49    free(wd);
  50 }
  51
  52 static void
  53 _mirrored_set(Evas_Object *obj, Eina_Bool rtl)
  54 {
  55    Widget_Data *wd = elm_widget_data_get(obj);
  56    if (!wd) return;
  57    edje_object_mirrored_set(wd->bbl, rtl);
  58 }
  59
  60 static void
  61 _theme_hook(Evas_Object *obj)
  62 {
  63    Widget_Data *wd = elm_widget_data_get(obj);
  64    if (!wd) return;
  65    _elm_widget_mirrored_reload(obj);
  66    _mirrored_set(obj, elm_widget_mirrored_get(obj));
  67    _elm_theme_object_set(obj, wd->bbl, "bubble", corner_string[wd->pos],
  68                          elm_widget_style_get(obj));
  69    edje_object_part_text_escaped_set(wd->bbl, "elm.text", wd->label);
  70    if (wd->label) edje_object_signal_emit(wd->bbl, "elm,state,text,visible", "elm");
  71    else edje_object_signal_emit(wd->bbl, "elm,state,text,hidden", "elm");
  72    edje_object_part_text_escaped_set(wd->bbl, "elm.info", wd->info);
  73    if (wd->info) edje_object_signal_emit(wd->bbl, "elm,state,info,visible", "elm");
  74    else edje_object_signal_emit(wd->bbl, "elm,state,info,hidden", "elm");
  75    if (wd->content)
  76      {
  77         edje_object_part_swallow(wd->bbl, "elm.swallow.content", wd->content);
  78         edje_object_message_signal_process(wd->bbl);
  79      }
  80    if (wd->icon)
  81      edje_object_signal_emit(wd->bbl, "elm,state,icon,visible", "elm");
  82    else
  83      edje_object_signal_emit(wd->bbl, "elm,state,icon,hidden", "elm");
  84    edje_object_scale_set(wd->bbl,
  85                          elm_widget_scale_get(obj) * _elm_config->scale);
  86    _sizing_eval(obj);
  87 }
  88
  89 static void
  90 _content_set(Evas_Object *obj, Evas_Object *content)
  91 {
  92    Widget_Data *wd = elm_widget_data_get(obj);
  93    if (!wd) return;
  94
  95    if (wd->content == content) return;
  96    if (wd->content) evas_object_del(wd->content);
  97    wd->content = content;
  98    if (content)
  99      {
 100         elm_widget_sub_object_add(obj, content);
 101         evas_object_event_callback_add(content,
 102                                        EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 103                                        _changed_size_hints, obj);
 104         edje_object_part_swallow(wd->bbl, "elm.swallow.content", content);
 105      }
 106    _sizing_eval(obj);
 107 }
 108
 109 static Evas_Object *
 110 _content_unset(Evas_Object *obj)
 111 {
 112    Widget_Data *wd = elm_widget_data_get(obj);
 113    Evas_Object *content;
 114    if (!wd) return NULL;
 115    if (!wd->content) return NULL;
 116    content = wd->content;
 117    elm_widget_sub_object_del(obj, content);
 118    evas_object_event_callback_del_full(content,
 119                                        EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 120                                        _changed_size_hints, obj);
 121    edje_object_part_unswallow(wd->bbl, content);
 122    wd->content = NULL;
 123    return content;
 124 }
 125
 126 static void
 127 _icon_set(Evas_Object *obj, Evas_Object* icon)
 128 {
 129    Widget_Data *wd = elm_widget_data_get(obj);
 130    if (!wd) return;
 131    if (wd->icon == icon) return;
 132    if (wd->icon) evas_object_del(wd->icon);
 133    wd->icon = icon;
 134    if (icon)
 135      {
 136         elm_widget_sub_object_add(obj, icon);
 137         edje_object_part_swallow(wd->bbl, "elm.swallow.icon", icon);
 138         evas_object_event_callback_add(icon, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 139                                        _changed_size_hints, obj);
 140         edje_object_signal_emit(wd->bbl, "elm,state,icon,visible", "elm");
 141         edje_object_message_signal_process(wd->bbl);
 142      }
 143    _sizing_eval(obj);
 144 }
 145
 146 static Evas_Object *
 147 _icon_unset(Evas_Object *obj)
 148 {
 149    Widget_Data *wd = elm_widget_data_get(obj);
 150    Evas_Object *icon;
 151    if (!wd) return NULL;
 152    if (!wd->icon) return NULL;
 153    icon = wd->icon;
 154    elm_widget_sub_object_del(obj, icon);
 155    evas_object_event_callback_del_full(icon, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 156                                        _changed_size_hints, obj);
 157    edje_object_part_unswallow(wd->bbl, icon);
 158    wd->icon = NULL;
 159    return icon;
 160 }
 161
 162 static void
 163 _content_set_hook(Evas_Object *obj, const char *part, Evas_Object *content)
 164 {
 165    ELM_CHECK_WIDTYPE(obj, widtype);
 166    Widget_Data *wd = elm_widget_data_get(obj);
 167    if (!wd) return;
 168
 169    if (!part || !strcmp(part, "default"))
 170      _content_set(obj, content);
 171    else if (!strcmp(part, "icon"))
 172      _icon_set(obj, content);
 173 }
 174
 175 static Evas_Object *
 176 _content_get_hook(const Evas_Object *obj, const char *part)
 177 {
 178    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 179    Widget_Data *wd = elm_widget_data_get(obj);
 180    if (!wd) return NULL;
 181    if (!part || !strcmp(part, "default"))
 182      return wd->content;
 183    else if (!strcmp(part, "icon"))
 184      return wd->icon;
 185    return NULL;
 186 }
 187
 188 static Evas_Object *
 189 _content_unset_hook(Evas_Object *obj, const char *part)
 190 {
 191    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 192    Widget_Data *wd = elm_widget_data_get(obj);
 193    if (!wd) return NULL;
 194    if (!part || !strcmp(part, "default"))
 195      return _content_unset(obj);
 196    else if (!strcmp(part, "icon"))
 197      return _icon_unset(obj);
 198    return NULL;
 199 }
 200
 201 static Eina_Bool
 202 _elm_bubble_focus_next_hook(const Evas_Object *obj, Elm_Focus_Direction dir, Evas_Object **next)
 203 {
 204    Widget_Data *wd = elm_widget_data_get(obj);
 205    Evas_Object *cur;
 206
 207    if ((!wd) || (!wd->content))
 208      return EINA_FALSE;
 209
 210    cur = wd->content;
 211
 212    /* Try Focus cycle in subitem */
 213    return elm_widget_focus_next_get(cur, dir, next);
 214 }
 215
 216 static void
 217 _sizing_eval(Evas_Object *obj)
 218 {
 219    Widget_Data *wd = elm_widget_data_get(obj);
 220    Evas_Coord minw = -1, minh = -1, maxw = -1, maxh = -1;
 221    if (!wd) return;
 222    elm_coords_finger_size_adjust(1, &minw, 1, &minh);
 223    edje_object_size_min_restricted_calc(wd->bbl, &minw, &minh, minw, minh);
 224    evas_object_size_hint_min_set(obj, minw, minh);
 225    evas_object_size_hint_max_set(obj, maxw, maxh);
 226 }
 227
 228 static void
 229 _changed_size_hints(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 230 {
 231    Widget_Data *wd = elm_widget_data_get(data);
 232    if (!wd) return;
 233    _sizing_eval(data);
 234 }
 235
 236 static void
 237 _sub_del(void *data __UNUSED__, Evas_Object *obj, void *event_info)
 238 {
 239    Widget_Data *wd = elm_widget_data_get(obj);
 240    Evas_Object *sub = event_info;
 241    if (!wd) return;
 242    evas_object_event_callback_del_full(sub, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 243                                        _changed_size_hints, obj);
 244    if (sub == wd->content) wd->content = NULL;
 245    else if (sub == wd->icon)
 246      {
 247         edje_object_signal_emit(wd->bbl, "elm,state,icon,hidden", "elm");
 248         wd->icon = NULL;
 249         edje_object_message_signal_process(wd->bbl);
 250      }
 251    _sizing_eval(obj);
 252 }
 253
 254 static void
 255 _mouse_up(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info)
 256 {
 257    Evas_Event_Mouse_Up *ev = event_info;
 258    if (ev->event_flags & EVAS_EVENT_FLAG_ON_HOLD)
 259      return;
 260    evas_object_smart_callback_call(data, SIG_CLICKED, NULL);
 261 }
 262
 263 static void
 264 _elm_bubble_label_set(Evas_Object *obj, const char *item, const char *label)
 265 {
 266    ELM_CHECK_WIDTYPE(obj, widtype);
 267    Widget_Data *wd = elm_widget_data_get(obj);
 268    if (!wd) return;
 269
 270    if (!item || !strcmp(item, "default"))
 271      {
 272         eina_stringshare_replace(&wd->label, label);
 273         edje_object_part_text_escaped_set(wd->bbl, "elm.text", label);
 274         if (label) edje_object_signal_emit(wd->bbl, "elm,state,text,visible",
 275                                            "elm");
 276         else edje_object_signal_emit(wd->bbl, "elm,state,text,hidden", "elm");
 277         _sizing_eval(obj);
 278      }
 279    else if (!strcmp(item, "info"))
 280      {
 281         eina_stringshare_replace(&wd->info, label);
 282         edje_object_part_text_escaped_set(wd->bbl, "elm.info", label);
 283         if (label) edje_object_signal_emit(wd->bbl, "elm,state,info,visible",
 284                                            "elm");
 285         else edje_object_signal_emit(wd->bbl, "elm,state,info,hidden", "elm");
 286         _sizing_eval(obj);
 287      }
 288 }
 289
 290 static const char*
 291 _elm_bubble_label_get(const Evas_Object *obj, const char *item)
 292 {
 293    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 294    Widget_Data *wd = elm_widget_data_get(obj);
 295    if (!wd) return NULL;
 296
 297    if (!item || !strcmp(item, "default"))
 298      {
 299         return wd->label;
 300      }
 301    else if (!strcmp(item, "info"))
 302      {
 303         return wd->info;
 304      }
 305
 306    return NULL;
 307 }
 308
 309 EAPI Evas_Object *
 310 elm_bubble_add(Evas_Object *parent)
 311 {
 312    Evas_Object *obj;
 313    Evas *e;
 314    Widget_Data *wd;
 315
 316    ELM_WIDGET_STANDARD_SETUP(wd, Widget_Data, parent, e, obj, NULL);
 317
 318    ELM_SET_WIDTYPE(widtype, "bubble");
 319    elm_widget_type_set(obj, "bubble");
 320    elm_widget_sub_object_add(parent, obj);
 321    elm_widget_data_set(obj, wd);
 322    elm_widget_del_hook_set(obj, _del_hook);
 323    elm_widget_theme_hook_set(obj, _theme_hook);
 324    elm_widget_focus_next_hook_set(obj, _elm_bubble_focus_next_hook);
 325    elm_widget_can_focus_set(obj, EINA_FALSE);
 326    elm_widget_text_set_hook_set(obj, _elm_bubble_label_set);
 327    elm_widget_text_get_hook_set(obj, _elm_bubble_label_get);
 328    elm_widget_content_set_hook_set(obj, _content_set_hook);
 329    elm_widget_content_get_hook_set(obj, _content_get_hook);
 330    elm_widget_content_unset_hook_set(obj, _content_unset_hook);
 331
 332    wd->corner = eina_stringshare_add("base");
 333    wd->pos = ELM_BUBBLE_POS_TOP_LEFT; //default
 334
 335    wd->bbl = edje_object_add(e);
 336    elm_widget_resize_object_set(obj, wd->bbl);
 337
 338    evas_object_smart_callback_add(obj, "sub-object-del", _sub_del, obj);
 339    evas_object_event_callback_add(wd->bbl, EVAS_CALLBACK_MOUSE_UP,
 340                                   _mouse_up, obj);
 341
 342    evas_object_smart_callbacks_descriptions_set(obj, _signals);
 343    _mirrored_set(obj, elm_widget_mirrored_get(obj));
 344    _elm_theme_object_set(obj, wd->bbl, "bubble", wd->corner,
 345                          elm_widget_style_get(obj));
 346    _sizing_eval(obj);
 347    return obj;
 348 }
 349
 350 EAPI void
 351 elm_bubble_pos_set(Evas_Object *obj, Elm_Bubble_Pos pos)
 352 {
 353    ELM_CHECK_WIDTYPE(obj, widtype);
 354    Widget_Data *wd = elm_widget_data_get(obj);
 355    if (!wd) return;
 356    if (pos<ELM_BUBBLE_POS_TOP_LEFT || pos>ELM_BUBBLE_POS_BOTTOM_RIGHT) return;
 357    wd->pos = pos;
 358    _theme_hook(obj);
 359 }
 360
 361 EAPI Elm_Bubble_Pos
 362 elm_bubble_pos_get(const Evas_Object *obj)
 363 {
 364    ELM_CHECK_WIDTYPE(obj, widtype) ELM_BUBBLE_POS_INVALID;
 365    Widget_Data *wd = elm_widget_data_get(obj);
 366    if (!wd) return ELM_BUBBLE_POS_INVALID;
 367    return wd->pos;
 368 }