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    const char *ontext, *offtext;
  13 };
  14
  15 static const char *widtype = NULL;
  16 static void _del_hook(Evas_Object *obj);
  17 static void _mirrored_set(Evas_Object *obj, Eina_Bool rtl);
  18 static void _theme_hook(Evas_Object *obj);
  19 static void _disable_hook(Evas_Object *obj);
  20 static void _sizing_eval(Evas_Object *obj);
  21 static void _changed_size_hints(void *data, Evas *e, Evas_Object *obj, void *event_info);
  22 static void _sub_del(void *data, Evas_Object *obj, void *event_info);
  23 static void _signal_check_off(void *data, Evas_Object *obj, const char *emission, const char *source);
  24 static void _signal_check_on(void *data, Evas_Object *obj, const char *emission, const char *source);
  25 static void _signal_check_toggle(void *data, Evas_Object *obj, const char *emission, const char *source);
  26 static void _on_focus_hook(void *data, Evas_Object *obj);
  27 static void _activate_hook(Evas_Object *obj);
  28 static void _activate(Evas_Object *obj);
  29 static Eina_Bool _event_hook(Evas_Object *obj, Evas_Object *src,
  30                              Evas_Callback_Type type, void *event_info);
  31
  32 static const char SIG_CHANGED[] = "changed";
  33 static const Evas_Smart_Cb_Description _signals[] = {
  34        {SIG_CHANGED, ""},
  35        {NULL, NULL}
  36 };
  37
  38 static Eina_Bool
  39 _event_hook(Evas_Object *obj, Evas_Object *src __UNUSED__, Evas_Callback_Type type, void *event_info)
  40 {
  41    if (type != EVAS_CALLBACK_KEY_DOWN) return EINA_FALSE;
  42    Evas_Event_Key_Down *ev = event_info;
  43    if (ev->event_flags & EVAS_EVENT_FLAG_ON_HOLD) return EINA_FALSE;
  44    if (elm_widget_disabled_get(obj)) return EINA_FALSE;
  45    if ((strcmp(ev->keyname, "Return")) &&
  46        (strcmp(ev->keyname, "KP_Enter")) &&
  47        (strcmp(ev->keyname, "space")))
  48      return EINA_FALSE;
  49    _activate(obj);
  50    ev->event_flags |= EVAS_EVENT_FLAG_ON_HOLD;
  51    return EINA_TRUE;
  52 }
  53
  54
  55 static void
  56 _del_hook(Evas_Object *obj)
  57 {
  58    Widget_Data *wd = elm_widget_data_get(obj);
  59    if (!wd) return;
  60    if (wd->label) eina_stringshare_del(wd->label);
  61    if (wd->ontext) eina_stringshare_del(wd->ontext);
  62    if (wd->offtext) eina_stringshare_del(wd->offtext);
  63    free(wd);
  64 }
  65
  66 static void
  67 _on_focus_hook(void *data __UNUSED__, Evas_Object *obj)
  68 {
  69    Widget_Data *wd = elm_widget_data_get(obj);
  70    if (!wd) return;
  71    if (elm_widget_focus_get(obj))
  72      {
  73         edje_object_signal_emit(wd->chk, "elm,action,focus", "elm");
  74         evas_object_focus_set(wd->chk, EINA_TRUE);
  75      }
  76    else
  77      {
  78         edje_object_signal_emit(wd->chk, "elm,action,unfocus", "elm");
  79         evas_object_focus_set(wd->chk, EINA_FALSE);
  80      }
  81 }
  82
  83 static void
  84 _mirrored_set(Evas_Object *obj, Eina_Bool rtl)
  85 {
  86    Widget_Data *wd = elm_widget_data_get(obj);
  87    if (!wd) return;
  88    edje_object_mirrored_set(wd->chk, rtl);
  89 }
  90
  91 static void
  92 _theme_hook(Evas_Object *obj)
  93 {
  94    Widget_Data *wd = elm_widget_data_get(obj);
  95    if (!wd) return;
  96    _elm_widget_mirrored_reload(obj);
  97    _mirrored_set(obj, elm_widget_mirrored_get(obj));
  98    _elm_theme_object_set(obj, wd->chk, "check", "base", elm_widget_style_get(obj));
  99    if (wd->icon)
 100      edje_object_signal_emit(wd->chk, "elm,state,icon,visible", "elm");
 101    else
 102      edje_object_signal_emit(wd->chk, "elm,state,icon,hidden", "elm");
 103    if (wd->state)
 104      {
 105         edje_object_signal_emit(wd->chk, "elm,state,check,on", "elm");
 106         edje_object_signal_emit(wd->chk, "elm,state,toggle,on", "elm");
 107      }
 108    else
 109      {
 110         edje_object_signal_emit(wd->chk, "elm,state,check,off", "elm");
 111         edje_object_signal_emit(wd->chk, "elm,state,toggle,off", "elm");
 112      }
 113    if (wd->label)
 114      edje_object_signal_emit(wd->chk, "elm,state,text,visible", "elm");
 115    else
 116      edje_object_signal_emit(wd->chk, "elm,state,text,hidden", "elm");
 117    edje_object_part_text_set(wd->chk, "elm.text", wd->label);
 118    edje_object_part_text_set(wd->chk, "elm.ontext", wd->ontext);
 119    edje_object_part_text_set(wd->chk, "elm.offtext", wd->offtext);
 120    if (elm_widget_disabled_get(obj))
 121      edje_object_signal_emit(wd->chk, "elm,state,disabled", "elm");
 122    edje_object_message_signal_process(wd->chk);
 123    edje_object_scale_set(wd->chk, elm_widget_scale_get(obj) * _elm_config->scale);
 124    _sizing_eval(obj);
 125 }
 126
 127 static void
 128 _disable_hook(Evas_Object *obj)
 129 {
 130    Widget_Data *wd = elm_widget_data_get(obj);
 131    if (!wd) return;
 132    if (elm_widget_disabled_get(obj))
 133      edje_object_signal_emit(wd->chk, "elm,state,disabled", "elm");
 134    else
 135      edje_object_signal_emit(wd->chk, "elm,state,enabled", "elm");
 136 }
 137
 138 static void
 139 _sizing_eval(Evas_Object *obj)
 140 {
 141    Widget_Data *wd = elm_widget_data_get(obj);
 142    Evas_Coord minw = -1, minh = -1, maxw = -1, maxh = -1;
 143    if (!wd) return;
 144    elm_coords_finger_size_adjust(1, &minw, 1, &minh);
 145    edje_object_size_min_restricted_calc(wd->chk, &minw, &minh, minw, minh);
 146    elm_coords_finger_size_adjust(1, &minw, 1, &minh);
 147    evas_object_size_hint_min_set(obj, minw, minh);
 148    evas_object_size_hint_max_set(obj, maxw, maxh);
 149 }
 150
 151 static void
 152 _changed_size_hints(void *data, Evas *e __UNUSED__, Evas_Object *obj, void *event_info __UNUSED__)
 153 {
 154    Widget_Data *wd = elm_widget_data_get(data);
 155    if (!wd) return;
 156    if (obj != wd->icon) return;
 157    _sizing_eval(data);
 158 }
 159
 160 static void
 161 _sub_del(void *data __UNUSED__, Evas_Object *obj, void *event_info)
 162 {
 163    Widget_Data *wd = elm_widget_data_get(obj);
 164    Evas_Object *sub = event_info;
 165    if (!wd) return;
 166    if (sub == wd->icon)
 167      {
 168         edje_object_signal_emit(wd->chk, "elm,state,icon,hidden", "elm");
 169         evas_object_event_callback_del_full(sub, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 170                                             _changed_size_hints, obj);
 171         wd->icon = NULL;
 172         _sizing_eval(obj);
 173         edje_object_message_signal_process(wd->chk);
 174      }
 175 }
 176
 177 static void
 178 _signal_check_off(void *data, Evas_Object *obj __UNUSED__, const char *emission __UNUSED__, const char *source __UNUSED__)
 179 {
 180    Widget_Data *wd = elm_widget_data_get(data);
 181    if (!wd) return;
 182    wd->state = EINA_FALSE;
 183    if (wd->statep) *wd->statep = wd->state;
 184    edje_object_signal_emit(wd->chk, "elm,state,check,off", "elm");
 185    edje_object_signal_emit(wd->chk, "elm,state,toggle,off", "elm");
 186    evas_object_smart_callback_call(data, SIG_CHANGED, NULL);
 187 }
 188
 189 static void
 190 _signal_check_on(void *data, Evas_Object *obj __UNUSED__, const char *emission __UNUSED__, const char *source __UNUSED__)
 191 {
 192    Widget_Data *wd = elm_widget_data_get(data);
 193    if (!wd) return;
 194    wd->state = EINA_TRUE;
 195    if (wd->statep) *wd->statep = wd->state;
 196    edje_object_signal_emit(wd->chk, "elm,state,check,on", "elm");
 197    edje_object_signal_emit(wd->chk, "elm,state,toggle,on", "elm");
 198    evas_object_smart_callback_call(data, SIG_CHANGED, NULL);
 199 }
 200
 201 static void
 202 _signal_check_toggle(void *data, Evas_Object *obj __UNUSED__, const char *emission __UNUSED__, const char *source __UNUSED__)
 203 {
 204    _activate(data);
 205 }
 206
 207 static void
 208 _activate_hook(Evas_Object *obj)
 209 {
 210    _activate(obj);
 211 }
 212
 213 static void
 214 _activate(Evas_Object *obj)
 215 {
 216    Widget_Data *wd = elm_widget_data_get(obj);
 217    if (!wd) return;
 218    if ((_elm_config->access_mode == ELM_ACCESS_MODE_OFF) ||
 219        (_elm_access_2nd_click_timeout(obj)))
 220      {
 221         wd->state = !wd->state;
 222         if (wd->statep) *wd->statep = wd->state;
 223         if (wd->state)
 224           {
 225              edje_object_signal_emit(wd->chk, "elm,state,check,on", "elm");
 226              if (_elm_config->access_mode != ELM_ACCESS_MODE_OFF)
 227                {
 228                   if (!wd->ontext)
 229                     {
 230                        _elm_access_say(E_("State: On"));
 231                     }
 232                   else
 233                      _elm_access_say(E_("State: On"));
 234                }
 235           }
 236         else
 237           {
 238              edje_object_signal_emit(wd->chk, "elm,state,check,off", "elm");
 239              if (_elm_config->access_mode != ELM_ACCESS_MODE_OFF)
 240                {
 241                   if (!wd->offtext)
 242                     {
 243                        _elm_access_say(E_("State: Off"));
 244                     }
 245                   else
 246                      _elm_access_say(E_("State: Off"));
 247                }
 248           }
 249         evas_object_smart_callback_call(obj, SIG_CHANGED, NULL);
 250      }
 251 }
 252
 253 static void
 254 _elm_check_label_set(Evas_Object *obj, const char *item, const char *label)
 255 {
 256    ELM_CHECK_WIDTYPE(obj, widtype);
 257    Widget_Data *wd = elm_widget_data_get(obj);
 258    if (!wd) return;
 259    if ((!item) || (!strcmp(item, "default")))
 260      {
 261         eina_stringshare_replace(&wd->label, label);
 262         if (label)
 263            edje_object_signal_emit(wd->chk, "elm,state,text,visible", "elm");
 264         else
 265            edje_object_signal_emit(wd->chk, "elm,state,text,hidden", "elm");
 266         edje_object_message_signal_process(wd->chk);
 267         edje_object_part_text_set(wd->chk, "elm.text", label);
 268      }
 269    else if ((item) && (!strcmp(item, "on")))
 270      {
 271         eina_stringshare_replace(&wd->ontext, label);
 272         edje_object_part_text_set(wd->chk, "elm.ontext", wd->ontext);
 273      }
 274    else if ((item) && (!strcmp(item, "off")))
 275      {
 276         eina_stringshare_replace(&wd->offtext, label);
 277         edje_object_part_text_set(wd->chk, "elm.offtext", wd->offtext);
 278      }
 279    _sizing_eval(obj);
 280 }
 281
 282 static const char *
 283 _elm_check_label_get(const Evas_Object *obj, const char *item)
 284 {
 285    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 286    Widget_Data *wd = elm_widget_data_get(obj);
 287    if (!wd) return NULL;
 288    if ((!item) || (!strcmp(item, "default")))
 289       return wd->label;
 290    else if ((item) && (!strcmp(item, "on")))
 291       return wd->ontext;
 292    else if ((item) && (!strcmp(item, "off")))
 293       return wd->offtext;
 294    return NULL;
 295 }
 296
 297 static char *
 298 _access_info_cb(void *data __UNUSED__, Evas_Object *obj, Elm_Widget_Item *item __UNUSED__)
 299 {
 300    const char *txt = elm_widget_access_info_get(obj);
 301    if (!txt) txt = _elm_check_label_get(obj, NULL);
 302    if (txt) return strdup(txt);
 303    return NULL;
 304 }
 305
 306 static char *
 307 _access_state_cb(void *data, Evas_Object *obj, Elm_Widget_Item *item __UNUSED__)
 308 {
 309    Evas_Object *o = data;
 310    Widget_Data *wd = elm_widget_data_get(o);
 311    if (!wd) return NULL;
 312    if (elm_widget_disabled_get(obj))
 313      return strdup(E_("State: Disabled"));
 314    if (wd->state)
 315      {
 316         if (wd->ontext)
 317           {
 318              char buf[1024];
 319
 320              snprintf(buf, sizeof(buf), "%s: %s", E_("State"), wd->ontext);
 321              return strdup(buf);
 322           }
 323         else
 324            return strdup(E_("State: On"));
 325      }
 326    if (wd->offtext)
 327      {
 328         char buf[1024];
 329
 330         snprintf(buf, sizeof(buf), "%s: %s", E_("State"), wd->offtext);
 331         return strdup(buf);
 332      }
 333    return strdup(E_("State: Off"));
 334 }
 335
 336 EAPI Evas_Object *
 337 elm_check_add(Evas_Object *parent)
 338 {
 339    Evas_Object *obj;
 340    Evas *e;
 341    Widget_Data *wd;
 342
 343    ELM_WIDGET_STANDARD_SETUP(wd, Widget_Data, parent, e, obj, NULL);
 344
 345    ELM_SET_WIDTYPE(widtype, "check");
 346    elm_widget_type_set(obj, "check");
 347    elm_widget_sub_object_add(parent, obj);
 348    elm_widget_on_focus_hook_set(obj, _on_focus_hook, NULL);
 349    elm_widget_data_set(obj, wd);
 350    elm_widget_del_hook_set(obj, _del_hook);
 351    elm_widget_theme_hook_set(obj, _theme_hook);
 352    elm_widget_disable_hook_set(obj, _disable_hook);
 353    elm_widget_can_focus_set(obj, EINA_TRUE);
 354    elm_widget_activate_hook_set(obj, _activate_hook);
 355    elm_widget_event_hook_set(obj, _event_hook);
 356    elm_widget_text_set_hook_set(obj, _elm_check_label_set);
 357    elm_widget_text_get_hook_set(obj, _elm_check_label_get);
 358
 359    wd->chk = edje_object_add(e);
 360    _elm_theme_object_set(obj, wd->chk, "check", "base", "default");
 361    edje_object_signal_callback_add(wd->chk, "elm,action,check,on", "",
 362                                    _signal_check_on, obj);
 363    edje_object_signal_callback_add(wd->chk, "elm,action,check,off", "",
 364                                    _signal_check_off, obj);
 365    edje_object_signal_callback_add(wd->chk, "elm,action,check,toggle", "",
 366                                    _signal_check_toggle, obj);
 367    elm_widget_resize_object_set(obj, wd->chk);
 368
 369    evas_object_smart_callback_add(obj, "sub-object-del", _sub_del, obj);
 370
 371    _mirrored_set(obj, elm_widget_mirrored_get(obj));
 372    _sizing_eval(obj);
 373
 374    // TODO: convert Elementary to subclassing of Evas_Smart_Class
 375    // TODO: and save some bytes, making descriptions per-class and not instance!
 376    evas_object_smart_callbacks_descriptions_set(obj, _signals);
 377
 378    _elm_access_object_register(obj, wd->chk);
 379    _elm_access_text_set(_elm_access_object_get(obj),
 380                         ELM_ACCESS_TYPE, E_("Check"));
 381    _elm_access_callback_set(_elm_access_object_get(obj),
 382                             ELM_ACCESS_INFO, _access_info_cb, obj);
 383    _elm_access_callback_set(_elm_access_object_get(obj),
 384                             ELM_ACCESS_STATE, _access_state_cb, obj);
 385    return obj;
 386 }
 387
 388 EAPI void
 389 elm_check_label_set(Evas_Object *obj, const char *label)
 390 {
 391    _elm_check_label_set(obj, NULL, label);
 392 }
 393
 394 EAPI const char *
 395 elm_check_label_get(const Evas_Object *obj)
 396 {
 397    return _elm_check_label_get(obj, NULL);
 398 }
 399
 400 EAPI void
 401 elm_check_states_labels_set(Evas_Object *obj, const char *ontext, const char *offtext)
 402 {
 403    _elm_check_label_set(obj, "on", ontext);
 404    _elm_check_label_set(obj, "off", offtext);
 405 }
 406
 407 EAPI void
 408 elm_check_states_labels_get(const Evas_Object *obj, const char **ontext, const char **offtext)
 409 {
 410    if (ontext) *ontext = _elm_check_label_get(obj, "on");
 411    if (offtext) *offtext = _elm_check_label_get(obj, "off");
 412 }
 413
 414 EAPI void
 415 elm_check_icon_set(Evas_Object *obj, Evas_Object *icon)
 416 {
 417    ELM_CHECK_WIDTYPE(obj, widtype);
 418    Widget_Data *wd = elm_widget_data_get(obj);
 419    if (!wd) return;
 420    if (wd->icon == icon) return;
 421    if (wd->icon) evas_object_del(wd->icon);
 422    wd->icon = icon;
 423    if (icon)
 424      {
 425         elm_widget_sub_object_add(obj, icon);
 426         evas_object_event_callback_add(icon, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 427                                        _changed_size_hints, obj);
 428         edje_object_part_swallow(wd->chk, "elm.swallow.content", icon);
 429         edje_object_signal_emit(wd->chk, "elm,state,icon,visible", "elm");
 430         edje_object_message_signal_process(wd->chk);
 431      }
 432    _sizing_eval(obj);
 433 }
 434
 435 EAPI Evas_Object *
 436 elm_check_icon_get(const Evas_Object *obj)
 437 {
 438    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 439    Widget_Data *wd = elm_widget_data_get(obj);
 440    if (!wd) return NULL;
 441    return wd->icon;
 442 }
 443
 444 EAPI Evas_Object *
 445 elm_check_icon_unset(Evas_Object *obj)
 446 {
 447    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 448    Widget_Data *wd = elm_widget_data_get(obj);
 449    if (!wd) return NULL;
 450    if (!wd->icon) return NULL;
 451    Evas_Object *icon = wd->icon;
 452    elm_widget_sub_object_del(obj, wd->icon);
 453    edje_object_part_unswallow(wd->chk, wd->icon);
 454    wd->icon = NULL;
 455    return icon;
 456 }
 457
 458 EAPI void
 459 elm_check_state_set(Evas_Object *obj, Eina_Bool state)
 460 {
 461    ELM_CHECK_WIDTYPE(obj, widtype);
 462    Widget_Data *wd = elm_widget_data_get(obj);
 463    if (!wd) return;
 464    if (state != wd->state)
 465      {
 466         wd->state = state;
 467         if (wd->statep) *wd->statep = wd->state;
 468         if (wd->state)
 469           {
 470              edje_object_signal_emit(wd->chk, "elm,state,check,on", "elm");
 471              edje_object_signal_emit(wd->chk, "elm,state,toggle,on", "elm");
 472           }
 473         else
 474           {
 475              edje_object_signal_emit(wd->chk, "elm,state,check,off", "elm");
 476              edje_object_signal_emit(wd->chk, "elm,state,toggle,off", "elm");
 477           }
 478      }
 479    edje_object_message_signal_process(wd->chk);
 480 }
 481
 482 EAPI Eina_Bool
 483 elm_check_state_get(const Evas_Object *obj)
 484 {
 485    ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
 486    Widget_Data *wd = elm_widget_data_get(obj);
 487    if (!wd) return EINA_FALSE;
 488    return wd->state;
 489 }
 490
 491 EAPI void
 492 elm_check_state_pointer_set(Evas_Object *obj, Eina_Bool *statep)
 493 {
 494    ELM_CHECK_WIDTYPE(obj, widtype);
 495    Widget_Data *wd = elm_widget_data_get(obj);
 496    if (!wd) return;
 497    if (statep)
 498      {
 499         wd->statep = statep;
 500         if (*wd->statep != wd->state)
 501           {
 502              wd->state = *wd->statep;
 503              if (wd->state)
 504                {
 505                   edje_object_signal_emit(wd->chk, "elm,state,check,on", "elm");
 506                   edje_object_signal_emit(wd->chk, "elm,state,toggle,on", "elm");
 507                }
 508              else
 509                {
 510                   edje_object_signal_emit(wd->chk, "elm,state,check,off", "elm");
 511                   edje_object_signal_emit(wd->chk, "elm,state,toggle,off", "elm");
 512                }
 513           }
 514      }
 515    else
 516      wd->statep = NULL;
 517 }