src/lib/elm_check.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 *chk, *icon;
   9    Eina_Bool state;
  10    Eina_Bool *statep;
  11    const char *label;
  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 _theme_hook(Evas_Object *obj);
  18 static void _disable_hook(Evas_Object *obj);
  19 static void _sizing_eval(Evas_Object *obj);
  20 static void _changed_size_hints(void *data, Evas *e, Evas_Object *obj, void *event_info);
  21 static void _sub_del(void *data, Evas_Object *obj, void *event_info);
  22 static void _signal_check_off(void *data, Evas_Object *obj, const char *emission, const char *source);
  23 static void _signal_check_on(void *data, Evas_Object *obj, const char *emission, const char *source);
  24 static void _signal_check_toggle(void *data, Evas_Object *obj, const char *emission, const char *source);
  25 static void _on_focus_hook(void *data, Evas_Object *obj);
  26 static void _activate_hook(Evas_Object *obj);
  27 static void _activate(Evas_Object *obj);
  28 static Eina_Bool _event_hook(Evas_Object *obj, Evas_Object *src,
  29                              Evas_Callback_Type type, void *event_info);
  30
  31 static const char SIG_CHANGED[] = "changed";
  32 static const Evas_Smart_Cb_Description _signals[] = {
  33        {SIG_CHANGED, ""},
  34        {NULL, NULL}
  35 };
  36
  37 static Eina_Bool
  38 _event_hook(Evas_Object *obj, Evas_Object *src __UNUSED__, Evas_Callback_Type type, void *event_info)
  39 {
  40    if (type != EVAS_CALLBACK_KEY_DOWN) return EINA_FALSE;
  41    Evas_Event_Key_Down *ev = event_info;
  42    if (ev->event_flags & EVAS_EVENT_FLAG_ON_HOLD) return EINA_FALSE;
  43    if (elm_widget_disabled_get(obj)) return EINA_FALSE;
  44    if ((strcmp(ev->keyname, "Return")) &&
  45        (strcmp(ev->keyname, "KP_Enter")) &&
  46        (strcmp(ev->keyname, "space")))
  47      return EINA_FALSE;
  48    _activate(obj);
  49    ev->event_flags |= EVAS_EVENT_FLAG_ON_HOLD;
  50    return EINA_TRUE;
  51 }
  52
  53
  54 static void
  55 _del_hook(Evas_Object *obj)
  56 {
  57    Widget_Data *wd = elm_widget_data_get(obj);
  58    if (!wd) return;
  59    if (wd->label) eina_stringshare_del(wd->label);
  60    free(wd);
  61 }
  62
  63 static void
  64 _on_focus_hook(void *data __UNUSED__, Evas_Object *obj)
  65 {
  66    Widget_Data *wd = elm_widget_data_get(obj);
  67    if (!wd) return;
  68    if (elm_widget_focus_get(obj))
  69      {
  70         edje_object_signal_emit(wd->chk, "elm,action,focus", "elm");
  71         evas_object_focus_set(wd->chk, EINA_TRUE);
  72      }
  73    else
  74      {
  75         edje_object_signal_emit(wd->chk, "elm,action,unfocus", "elm");
  76         evas_object_focus_set(wd->chk, EINA_FALSE);
  77      }
  78 }
  79
  80 static void
  81 _mirrored_set(Evas_Object *obj, Eina_Bool rtl)
  82 {
  83    Widget_Data *wd = elm_widget_data_get(obj);
  84    if (!wd) return;
  85    edje_object_mirrored_set(wd->chk, rtl);
  86 }
  87
  88 static void
  89 _theme_hook(Evas_Object *obj)
  90 {
  91    Widget_Data *wd = elm_widget_data_get(obj);
  92    if (!wd) return;
  93    _elm_widget_mirrored_reload(obj);
  94    _mirrored_set(obj, elm_widget_mirrored_get(obj));
  95    _elm_theme_object_set(obj, wd->chk, "check", "base", elm_widget_style_get(obj));
  96    if (wd->icon)
  97      edje_object_signal_emit(wd->chk, "elm,state,icon,visible", "elm");
  98    else
  99      edje_object_signal_emit(wd->chk, "elm,state,icon,hidden", "elm");
 100    if (wd->state)
 101      edje_object_signal_emit(wd->chk, "elm,state,check,on", "elm");
 102    else
 103      edje_object_signal_emit(wd->chk, "elm,state,check,off", "elm");
 104    if (wd->label)
 105      edje_object_signal_emit(wd->chk, "elm,state,text,visible", "elm");
 106    else
 107      edje_object_signal_emit(wd->chk, "elm,state,text,hidden", "elm");
 108    edje_object_part_text_set(wd->chk, "elm.text", wd->label);
 109    if (elm_widget_disabled_get(obj))
 110      edje_object_signal_emit(wd->chk, "elm,state,disabled", "elm");
 111    edje_object_message_signal_process(wd->chk);
 112    edje_object_scale_set(wd->chk, elm_widget_scale_get(obj) * _elm_config->scale);
 113    _sizing_eval(obj);
 114 }
 115
 116 static void
 117 _disable_hook(Evas_Object *obj)
 118 {
 119    Widget_Data *wd = elm_widget_data_get(obj);
 120    if (!wd) return;
 121    if (elm_widget_disabled_get(obj))
 122      edje_object_signal_emit(wd->chk, "elm,state,disabled", "elm");
 123    else
 124      edje_object_signal_emit(wd->chk, "elm,state,enabled", "elm");
 125 }
 126
 127 static void
 128 _sizing_eval(Evas_Object *obj)
 129 {
 130    Widget_Data *wd = elm_widget_data_get(obj);
 131    Evas_Coord minw = -1, minh = -1, maxw = -1, maxh = -1;
 132    if (!wd) return;
 133    elm_coords_finger_size_adjust(1, &minw, 1, &minh);
 134    edje_object_size_min_restricted_calc(wd->chk, &minw, &minh, minw, minh);
 135    elm_coords_finger_size_adjust(1, &minw, 1, &minh);
 136    evas_object_size_hint_min_set(obj, minw, minh);
 137    evas_object_size_hint_max_set(obj, maxw, maxh);
 138 }
 139
 140 static void
 141 _changed_size_hints(void *data, Evas *e __UNUSED__, Evas_Object *obj, void *event_info __UNUSED__)
 142 {
 143    Widget_Data *wd = elm_widget_data_get(data);
 144    if (!wd) return;
 145    if (obj != wd->icon) return;
 146    Evas_Coord mw, mh;
 147    evas_object_size_hint_min_get(obj, &mw, &mh);
 148    _sizing_eval(data);
 149 }
 150
 151 static void
 152 _sub_del(void *data __UNUSED__, Evas_Object *obj, void *event_info)
 153 {
 154    Widget_Data *wd = elm_widget_data_get(obj);
 155    Evas_Object *sub = event_info;
 156    if (!wd) return;
 157    if (sub == wd->icon)
 158      {
 159         edje_object_signal_emit(wd->chk, "elm,state,icon,hidden", "elm");
 160         evas_object_event_callback_del_full(sub, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 161                                             _changed_size_hints, obj);
 162         wd->icon = NULL;
 163         _sizing_eval(obj);
 164         edje_object_message_signal_process(wd->chk);
 165      }
 166 }
 167
 168 static void
 169 _signal_check_off(void *data, Evas_Object *obj __UNUSED__, const char *emission __UNUSED__, const char *source __UNUSED__)
 170 {
 171    Widget_Data *wd = elm_widget_data_get(data);
 172    if (!wd) return;
 173    wd->state = EINA_FALSE;
 174    if (wd->statep) *wd->statep = wd->state;
 175    edje_object_signal_emit(wd->chk, "elm,state,check,off", "elm");
 176    evas_object_smart_callback_call(data, SIG_CHANGED, NULL);
 177 }
 178
 179 static void
 180 _signal_check_on(void *data, Evas_Object *obj __UNUSED__, const char *emission __UNUSED__, const char *source __UNUSED__)
 181 {
 182    Widget_Data *wd = elm_widget_data_get(data);
 183    if (!wd) return;
 184    wd->state = EINA_TRUE;
 185    if (wd->statep) *wd->statep = wd->state;
 186    edje_object_signal_emit(wd->chk, "elm,state,check,on", "elm");
 187    evas_object_smart_callback_call(data, SIG_CHANGED, NULL);
 188 }
 189
 190 static void
 191 _signal_check_toggle(void *data, Evas_Object *obj __UNUSED__, const char *emission __UNUSED__, const char *source __UNUSED__)
 192 {
 193    _activate(data);
 194 }
 195
 196 static void
 197 _activate_hook(Evas_Object *obj)
 198 {
 199    _activate(obj);
 200 }
 201
 202 static void
 203 _activate(Evas_Object *obj)
 204 {
 205    Widget_Data *wd = elm_widget_data_get(obj);
 206    if (!wd) return;
 207    if ((_elm_config->access_mode == ELM_ACCESS_MODE_OFF) ||
 208        (_elm_access_2nd_click_timeout(obj)))
 209      {
 210         wd->state = !wd->state;
 211         if (wd->statep) *wd->statep = wd->state;
 212         if (wd->state)
 213           {
 214              edje_object_signal_emit(wd->chk, "elm,state,check,on", "elm");
 215              if (_elm_config->access_mode != ELM_ACCESS_MODE_OFF)
 216                 _elm_access_say(E_("State: On"));
 217           }
 218         else
 219           {
 220              edje_object_signal_emit(wd->chk, "elm,state,check,off", "elm");
 221              if (_elm_config->access_mode != ELM_ACCESS_MODE_OFF)
 222                 _elm_access_say(E_("State: Off"));
 223           }
 224         evas_object_smart_callback_call(obj, SIG_CHANGED, NULL);
 225      }
 226 }
 227
 228 static void
 229 _elm_check_label_set(Evas_Object *obj, const char *item, const char *label)
 230 {
 231    ELM_CHECK_WIDTYPE(obj, widtype);
 232    Widget_Data *wd = elm_widget_data_get(obj);
 233    if (item && strcmp(item, "default")) return;
 234    if (!wd) return;
 235    eina_stringshare_replace(&wd->label, label);
 236    if (label)
 237      edje_object_signal_emit(wd->chk, "elm,state,text,visible", "elm");
 238    else
 239      edje_object_signal_emit(wd->chk, "elm,state,text,hidden", "elm");
 240    edje_object_message_signal_process(wd->chk);
 241    edje_object_part_text_set(wd->chk, "elm.text", label);
 242    _sizing_eval(obj);
 243 }
 244
 245 static const char *
 246 _elm_check_label_get(const Evas_Object *obj, const char *item)
 247 {
 248    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 249    Widget_Data *wd = elm_widget_data_get(obj);
 250    if (item && strcmp(item, "default")) return NULL;
 251    if (!wd) return NULL;
 252    return wd->label;
 253 }
 254
 255 static char *
 256 _access_info_cb(void *data __UNUSED__, Evas_Object *obj, Elm_Widget_Item *item __UNUSED__)
 257 {
 258    const char *txt = elm_widget_access_info_get(obj);
 259    if (!txt) txt = _elm_check_label_get(obj, NULL);
 260    if (txt) return strdup(txt);
 261    return NULL;
 262 }
 263
 264 static char *
 265 _access_state_cb(void *data, Evas_Object *obj, Elm_Widget_Item *item __UNUSED__)
 266 {
 267    Evas_Object *o = data;
 268    Widget_Data *wd = elm_widget_data_get(o);
 269    if (!wd) return NULL;
 270    if (elm_widget_disabled_get(obj))
 271      return strdup(E_("State: Disabled"));
 272    if (wd->state)
 273      return strdup(E_("State: On"));
 274    return strdup(E_("State: Off"));
 275 }
 276
 277 EAPI Evas_Object *
 278 elm_check_add(Evas_Object *parent)
 279 {
 280    Evas_Object *obj;
 281    Evas *e;
 282    Widget_Data *wd;
 283
 284    ELM_WIDGET_STANDARD_SETUP(wd, Widget_Data, parent, e, obj, NULL);
 285
 286    ELM_SET_WIDTYPE(widtype, "check");
 287    elm_widget_type_set(obj, "check");
 288    elm_widget_sub_object_add(parent, obj);
 289    elm_widget_on_focus_hook_set(obj, _on_focus_hook, NULL);
 290    elm_widget_data_set(obj, wd);
 291    elm_widget_del_hook_set(obj, _del_hook);
 292    elm_widget_theme_hook_set(obj, _theme_hook);
 293    elm_widget_disable_hook_set(obj, _disable_hook);
 294    elm_widget_can_focus_set(obj, EINA_TRUE);
 295    elm_widget_activate_hook_set(obj, _activate_hook);
 296    elm_widget_event_hook_set(obj, _event_hook);
 297    elm_widget_text_set_hook_set(obj, _elm_check_label_set);
 298    elm_widget_text_get_hook_set(obj, _elm_check_label_get);
 299
 300    wd->chk = edje_object_add(e);
 301    _elm_theme_object_set(obj, wd->chk, "check", "base", "default");
 302    edje_object_signal_callback_add(wd->chk, "elm,action,check,on", "",
 303                                    _signal_check_on, obj);
 304    edje_object_signal_callback_add(wd->chk, "elm,action,check,off", "",
 305                                    _signal_check_off, obj);
 306    edje_object_signal_callback_add(wd->chk, "elm,action,check,toggle", "",
 307                                    _signal_check_toggle, obj);
 308    elm_widget_resize_object_set(obj, wd->chk);
 309
 310    evas_object_smart_callback_add(obj, "sub-object-del", _sub_del, obj);
 311
 312    _mirrored_set(obj, elm_widget_mirrored_get(obj));
 313    _sizing_eval(obj);
 314
 315    // TODO: convert Elementary to subclassing of Evas_Smart_Class
 316    // TODO: and save some bytes, making descriptions per-class and not instance!
 317    evas_object_smart_callbacks_descriptions_set(obj, _signals);
 318
 319    _elm_access_object_register(obj, wd->chk);
 320    _elm_access_text_set(_elm_access_object_get(obj),
 321                         ELM_ACCESS_TYPE, E_("Check"));
 322    _elm_access_callback_set(_elm_access_object_get(obj),
 323                             ELM_ACCESS_INFO, _access_info_cb, obj);
 324    _elm_access_callback_set(_elm_access_object_get(obj),
 325                             ELM_ACCESS_STATE, _access_state_cb, obj);
 326    return obj;
 327 }
 328
 329 EAPI void
 330 elm_check_label_set(Evas_Object *obj, const char *label)
 331 {
 332    _elm_check_label_set(obj, NULL, label);
 333 }
 334
 335 EAPI const char *
 336 elm_check_label_get(const Evas_Object *obj)
 337 {
 338    return _elm_check_label_get(obj, NULL);
 339 }
 340
 341 EAPI void
 342 elm_check_icon_set(Evas_Object *obj, Evas_Object *icon)
 343 {
 344    ELM_CHECK_WIDTYPE(obj, widtype);
 345    Widget_Data *wd = elm_widget_data_get(obj);
 346    if (!wd) return;
 347    if (wd->icon == icon) return;
 348    if (wd->icon) evas_object_del(wd->icon);
 349    wd->icon = icon;
 350    if (icon)
 351      {
 352         elm_widget_sub_object_add(obj, icon);
 353         evas_object_event_callback_add(icon, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 354                                        _changed_size_hints, obj);
 355         edje_object_part_swallow(wd->chk, "elm.swallow.content", icon);
 356         edje_object_signal_emit(wd->chk, "elm,state,icon,visible", "elm");
 357         edje_object_message_signal_process(wd->chk);
 358      }
 359    _sizing_eval(obj);
 360 }
 361
 362 EAPI Evas_Object *
 363 elm_check_icon_get(const Evas_Object *obj)
 364 {
 365    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 366    Widget_Data *wd = elm_widget_data_get(obj);
 367    if (!wd) return NULL;
 368    return wd->icon;
 369 }
 370
 371 EAPI Evas_Object *
 372 elm_check_icon_unset(Evas_Object *obj)
 373 {
 374    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 375    Widget_Data *wd = elm_widget_data_get(obj);
 376    if (!wd) return NULL;
 377    if (!wd->icon) return NULL;
 378    Evas_Object *icon = wd->icon;
 379    elm_widget_sub_object_del(obj, wd->icon);
 380    edje_object_part_unswallow(wd->chk, wd->icon);
 381    wd->icon = NULL;
 382    return icon;
 383 }
 384
 385 EAPI void
 386 elm_check_state_set(Evas_Object *obj, Eina_Bool state)
 387 {
 388    ELM_CHECK_WIDTYPE(obj, widtype);
 389    Widget_Data *wd = elm_widget_data_get(obj);
 390    if (!wd) return;
 391    if (state != wd->state)
 392      {
 393         wd->state = state;
 394         if (wd->statep) *wd->statep = wd->state;
 395         if (wd->state)
 396           edje_object_signal_emit(wd->chk, "elm,state,check,on", "elm");
 397         else
 398           edje_object_signal_emit(wd->chk, "elm,state,check,off", "elm");
 399      }
 400    edje_object_message_signal_process(wd->chk);
 401 }
 402
 403 EAPI Eina_Bool
 404 elm_check_state_get(const Evas_Object *obj)
 405 {
 406    ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
 407    Widget_Data *wd = elm_widget_data_get(obj);
 408    if (!wd) return EINA_FALSE;
 409    return wd->state;
 410 }
 411
 412 EAPI void
 413 elm_check_state_pointer_set(Evas_Object *obj, Eina_Bool *statep)
 414 {
 415    ELM_CHECK_WIDTYPE(obj, widtype);
 416    Widget_Data *wd = elm_widget_data_get(obj);
 417    if (!wd) return;
 418    if (statep)
 419      {
 420         wd->statep = statep;
 421         if (*wd->statep != wd->state)
 422           {
 423              wd->state = *wd->statep;
 424              if (wd->state)
 425                edje_object_signal_emit(wd->chk, "elm,state,check,on", "elm");
 426              else
 427                edje_object_signal_emit(wd->chk, "elm,state,check,off", "elm");
 428           }
 429      }
 430    else
 431      wd->statep = NULL;
 432 }