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 Eina_Bool _event_hook(Evas_Object *obj, Evas_Object *src,
  17                              Evas_Callback_Type type, void *event_info);
  18 static void _del_hook(Evas_Object *obj);
  19 static void _mirrored_set(Evas_Object *obj, Eina_Bool rtl);
  20 static void _theme_hook(Evas_Object *obj);
  21 static void _disable_hook(Evas_Object *obj);
  22 static void _sizing_eval(Evas_Object *obj);
  23 static void _changed_size_hints(void *data, Evas *e, Evas_Object *obj,
  24                                 void *event_info);
  25 static void _sub_del(void *data, Evas_Object *obj, void *event_info);
  26 static void _signal_check_off(void *data, Evas_Object *obj,
  27                               const char *emission, const char *source);
  28 static void _signal_check_on(void *data, Evas_Object *obj,
  29                              const char *emission, const char *source);
  30 static void _signal_check_toggle(void *data, Evas_Object *obj,
  31                                  const char *emission, const char *source);
  32 static void _on_focus_hook(void *data, Evas_Object *obj);
  33 static void _activate_hook(Evas_Object *obj);
  34 static void _content_set_hook(Evas_Object *obj, const char *part,
  35                               Evas_Object *content);
  36 static Evas_Object *_content_get_hook(const Evas_Object *obj, const char *part);
  37 static Evas_Object *_content_unset_hook(Evas_Object *obj, const char *part);
  38 static void _activate(Evas_Object *obj);
  39 static const char SIG_CHANGED[] = "changed";
  40 static const Evas_Smart_Cb_Description _signals[] = {
  41        {SIG_CHANGED, ""},
  42        {NULL, NULL}
  43 };
  44
  45 static Eina_Bool
  46 _event_hook(Evas_Object *obj, Evas_Object *src __UNUSED__,
  47             Evas_Callback_Type type, void *event_info)
  48 {
  49    if (type != EVAS_CALLBACK_KEY_DOWN) return EINA_FALSE;
  50    Evas_Event_Key_Down *ev = event_info;
  51    if (ev->event_flags & EVAS_EVENT_FLAG_ON_HOLD) return EINA_FALSE;
  52    if (elm_widget_disabled_get(obj)) return EINA_FALSE;
  53    if ((strcmp(ev->keyname, "Return")) &&
  54        (strcmp(ev->keyname, "KP_Enter")) &&
  55        (strcmp(ev->keyname, "space")))
  56      return EINA_FALSE;
  57    _activate(obj);
  58    ev->event_flags |= EVAS_EVENT_FLAG_ON_HOLD;
  59    return EINA_TRUE;
  60 }
  61
  62 static void
  63 _del_hook(Evas_Object *obj)
  64 {
  65    Widget_Data *wd = elm_widget_data_get(obj);
  66    if (!wd) return;
  67    if (wd->label) eina_stringshare_del(wd->label);
  68    if (wd->ontext) eina_stringshare_del(wd->ontext);
  69    if (wd->offtext) eina_stringshare_del(wd->offtext);
  70    free(wd);
  71 }
  72
  73 static void
  74 _on_focus_hook(void *data __UNUSED__, Evas_Object *obj)
  75 {
  76    Widget_Data *wd = elm_widget_data_get(obj);
  77    if (!wd) return;
  78    if (elm_widget_focus_get(obj))
  79      {
  80         edje_object_signal_emit(wd->chk, "elm,action,focus", "elm");
  81         evas_object_focus_set(wd->chk, EINA_TRUE);
  82      }
  83    else
  84      {
  85         edje_object_signal_emit(wd->chk, "elm,action,unfocus", "elm");
  86         evas_object_focus_set(wd->chk, EINA_FALSE);
  87      }
  88 }
  89
  90 static void
  91 _mirrored_set(Evas_Object *obj, Eina_Bool rtl)
  92 {
  93    Widget_Data *wd = elm_widget_data_get(obj);
  94    if (!wd) return;
  95    edje_object_mirrored_set(wd->chk, rtl);
  96 }
  97
  98 static void
  99 _theme_hook(Evas_Object *obj)
 100 {
 101    Widget_Data *wd = elm_widget_data_get(obj);
 102    if (!wd) return;
 103    _elm_widget_mirrored_reload(obj);
 104    _mirrored_set(obj, elm_widget_mirrored_get(obj));
 105    _elm_theme_object_set(obj, wd->chk, "check", "base", elm_widget_style_get(obj));
 106    if (wd->icon)
 107      edje_object_signal_emit(wd->chk, "elm,state,icon,visible", "elm");
 108    else
 109      edje_object_signal_emit(wd->chk, "elm,state,icon,hidden", "elm");
 110    if (wd->state)
 111      edje_object_signal_emit(wd->chk, "elm,state,check,on", "elm");
 112    else
 113      edje_object_signal_emit(wd->chk, "elm,state,check,off", "elm");
 114    if (wd->label)
 115      edje_object_signal_emit(wd->chk, "elm,state,text,visible", "elm");
 116    else
 117      edje_object_signal_emit(wd->chk, "elm,state,text,hidden", "elm");
 118    edje_object_part_text_set(wd->chk, "elm.text", wd->label);
 119    edje_object_part_text_set(wd->chk, "elm.ontext", wd->ontext);
 120    edje_object_part_text_set(wd->chk, "elm.offtext", wd->offtext);
 121    if (elm_widget_disabled_get(obj))
 122      edje_object_signal_emit(wd->chk, "elm,state,disabled", "elm");
 123    edje_object_message_signal_process(wd->chk);
 124    edje_object_scale_set(wd->chk, elm_widget_scale_get(obj) * _elm_config->scale);
 125    _sizing_eval(obj);
 126 }
 127
 128 static void
 129 _disable_hook(Evas_Object *obj)
 130 {
 131    Widget_Data *wd = elm_widget_data_get(obj);
 132    if (!wd) return;
 133    if (elm_widget_disabled_get(obj))
 134      edje_object_signal_emit(wd->chk, "elm,state,disabled", "elm");
 135    else
 136      edje_object_signal_emit(wd->chk, "elm,state,enabled", "elm");
 137 }
 138
 139 static void
 140 _sizing_eval(Evas_Object *obj)
 141 {
 142    Widget_Data *wd = elm_widget_data_get(obj);
 143    Evas_Coord minw = -1, minh = -1, maxw = -1, maxh = -1;
 144    if (!wd) return;
 145    elm_coords_finger_size_adjust(1, &minw, 1, &minh);
 146    edje_object_size_min_restricted_calc(wd->chk, &minw, &minh, minw, minh);
 147    elm_coords_finger_size_adjust(1, &minw, 1, &minh);
 148    evas_object_size_hint_min_set(obj, minw, minh);
 149    evas_object_size_hint_max_set(obj, maxw, maxh);
 150 }
 151
 152 static void
 153 _changed_size_hints(void *data, Evas *e __UNUSED__, Evas_Object *obj, void *event_info __UNUSED__)
 154 {
 155    Widget_Data *wd = elm_widget_data_get(data);
 156    if (!wd) return;
 157    if (obj != wd->icon) return;
 158    _sizing_eval(data);
 159 }
 160
 161 static void
 162 _sub_del(void *data __UNUSED__, Evas_Object *obj, void *event_info)
 163 {
 164    Widget_Data *wd = elm_widget_data_get(obj);
 165    Evas_Object *sub = event_info;
 166    if (!wd) return;
 167    if (sub == wd->icon)
 168      {
 169         edje_object_signal_emit(wd->chk, "elm,state,icon,hidden", "elm");
 170         evas_object_event_callback_del_full(sub, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 171                                             _changed_size_hints, obj);
 172         wd->icon = NULL;
 173         _sizing_eval(obj);
 174         edje_object_message_signal_process(wd->chk);
 175      }
 176 }
 177
 178 static void
 179 _signal_check_off(void *data, Evas_Object *obj __UNUSED__, const char *emission __UNUSED__, const char *source __UNUSED__)
 180 {
 181    Widget_Data *wd = elm_widget_data_get(data);
 182    if (!wd) return;
 183    wd->state = EINA_FALSE;
 184    if (wd->statep) *wd->statep = wd->state;
 185    edje_object_signal_emit(wd->chk, "elm,state,check,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    evas_object_smart_callback_call(data, SIG_CHANGED, NULL);
 198 }
 199
 200 static void
 201 _signal_check_toggle(void *data, Evas_Object *obj __UNUSED__, const char *emission __UNUSED__, const char *source __UNUSED__)
 202 {
 203    _activate(data);
 204 }
 205
 206 static void
 207 _activate_hook(Evas_Object *obj)
 208 {
 209    _activate(obj);
 210 }
 211
 212 static void
 213 _signal_emit_hook(Evas_Object *obj, const char *emission, const char *source)
 214 {
 215    Widget_Data *wd = elm_widget_data_get(obj);
 216    if (!wd) return;
 217
 218    edje_object_signal_emit(wd->chk, emission, source);
 219 }
 220
 221 static void
 222 _signal_callback_add_hook(Evas_Object *obj, const char *emission, const char *source, Edje_Signal_Cb func_cb, void *data)
 223 {
 224    Widget_Data *wd = elm_widget_data_get(obj);
 225    if (!wd) return;
 226    edje_object_signal_callback_add(wd->chk, emission, source, func_cb, data);
 227 }
 228
 229 static void
 230 _signal_callback_del_hook(Evas_Object *obj, const char *emission, const char *source, Edje_Signal_Cb func_cb, void *data)
 231 {
 232    Widget_Data *wd = elm_widget_data_get(obj);
 233    edje_object_signal_callback_del_full(wd->chk, emission, source, func_cb,
 234                                         data);
 235 }
 236
 237 static void
 238 _content_set_hook(Evas_Object *obj, const char *part, Evas_Object *content)
 239 {
 240    ELM_CHECK_WIDTYPE(obj, widtype);
 241    Widget_Data *wd;
 242
 243    if (part && strcmp(part, "icon")) return;
 244    wd = elm_widget_data_get(obj);
 245    if (!wd) return;
 246    if (wd->icon == content) return;
 247    if (wd->icon) evas_object_del(wd->icon);
 248    wd->icon = content;
 249    if (content)
 250      {
 251         elm_widget_sub_object_add(obj, content);
 252         evas_object_event_callback_add(content,
 253                                        EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 254                                        _changed_size_hints, obj);
 255         edje_object_part_swallow(wd->chk, "elm.swallow.content", content);
 256         edje_object_signal_emit(wd->chk, "elm,state,icon,visible", "elm");
 257         edje_object_message_signal_process(wd->chk);
 258      }
 259    _sizing_eval(obj);
 260 }
 261
 262 static Evas_Object *
 263 _content_get_hook(const Evas_Object *obj, const char *part)
 264 {
 265    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 266    Widget_Data *wd;
 267
 268    if (part && strcmp(part, "icon")) return NULL;
 269    wd = elm_widget_data_get(obj);
 270    if (!wd) return NULL;
 271    return wd->icon;
 272 }
 273
 274 static Evas_Object *
 275 _content_unset_hook(Evas_Object *obj, const char *part)
 276 {
 277    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 278    Widget_Data *wd;
 279
 280    if (part && strcmp(part, "icon")) return NULL;
 281    wd = elm_widget_data_get(obj);
 282    if (!wd) return NULL;
 283    if (!wd->icon) return NULL;
 284    Evas_Object *icon = wd->icon;
 285    elm_widget_sub_object_del(obj, wd->icon);
 286    evas_object_event_callback_del_full(wd->icon,
 287                                        EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 288                                        _changed_size_hints, obj);
 289    edje_object_part_unswallow(wd->chk, wd->icon);
 290    wd->icon = NULL;
 291    return icon;
 292 }
 293
 294 static void
 295 _activate(Evas_Object *obj)
 296 {
 297    Widget_Data *wd = elm_widget_data_get(obj);
 298    if (!wd) return;
 299    if ((_elm_config->access_mode == ELM_ACCESS_MODE_OFF) ||
 300        (_elm_access_2nd_click_timeout(obj)))
 301      {
 302         wd->state = !wd->state;
 303         if (wd->statep) *wd->statep = wd->state;
 304         if (wd->state)
 305           {
 306              edje_object_signal_emit(wd->chk, "elm,state,check,on", "elm");
 307              if (_elm_config->access_mode != ELM_ACCESS_MODE_OFF)
 308                {
 309                   if (!wd->ontext)
 310                     {
 311                        _elm_access_say(E_("State: On"));
 312                     }
 313                   else
 314                      _elm_access_say(E_("State: On"));
 315                }
 316           }
 317         else
 318           {
 319              edje_object_signal_emit(wd->chk, "elm,state,check,off", "elm");
 320              if (_elm_config->access_mode != ELM_ACCESS_MODE_OFF)
 321                {
 322                   if (!wd->offtext)
 323                     {
 324                        _elm_access_say(E_("State: Off"));
 325                     }
 326                   else
 327                      _elm_access_say(E_("State: Off"));
 328                }
 329           }
 330         evas_object_smart_callback_call(obj, SIG_CHANGED, NULL);
 331      }
 332 }
 333
 334 static void
 335 _elm_check_label_set(Evas_Object *obj, const char *item, const char *label)
 336 {
 337    ELM_CHECK_WIDTYPE(obj, widtype);
 338    Widget_Data *wd = elm_widget_data_get(obj);
 339    if (!wd) return;
 340    if ((!item) || (!strcmp(item, "default")))
 341      {
 342         eina_stringshare_replace(&wd->label, label);
 343         if (label)
 344            edje_object_signal_emit(wd->chk, "elm,state,text,visible", "elm");
 345         else
 346            edje_object_signal_emit(wd->chk, "elm,state,text,hidden", "elm");
 347         edje_object_message_signal_process(wd->chk);
 348         edje_object_part_text_set(wd->chk, "elm.text", label);
 349      }
 350    else if ((item) && (!strcmp(item, "on")))
 351      {
 352         eina_stringshare_replace(&wd->ontext, label);
 353         edje_object_part_text_set(wd->chk, "elm.ontext", wd->ontext);
 354      }
 355    else if ((item) && (!strcmp(item, "off")))
 356      {
 357         eina_stringshare_replace(&wd->offtext, label);
 358         edje_object_part_text_set(wd->chk, "elm.offtext", wd->offtext);
 359      }
 360    _sizing_eval(obj);
 361 }
 362
 363 static const char *
 364 _elm_check_label_get(const Evas_Object *obj, const char *item)
 365 {
 366    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 367    Widget_Data *wd = elm_widget_data_get(obj);
 368    if (!wd) return NULL;
 369    if ((!item) || (!strcmp(item, "default")))
 370       return wd->label;
 371    else if ((item) && (!strcmp(item, "on")))
 372       return wd->ontext;
 373    else if ((item) && (!strcmp(item, "off")))
 374       return wd->offtext;
 375    return NULL;
 376 }
 377
 378 static char *
 379 _access_info_cb(void *data __UNUSED__, Evas_Object *obj, Elm_Widget_Item *item __UNUSED__)
 380 {
 381    const char *txt = elm_widget_access_info_get(obj);
 382    if (!txt) txt = _elm_check_label_get(obj, NULL);
 383    if (txt) return strdup(txt);
 384    return NULL;
 385 }
 386
 387 static char *
 388 _access_state_cb(void *data, Evas_Object *obj, Elm_Widget_Item *item __UNUSED__)
 389 {
 390    Evas_Object *o = data;
 391    Widget_Data *wd = elm_widget_data_get(o);
 392    if (!wd) return NULL;
 393    if (elm_widget_disabled_get(obj))
 394      return strdup(E_("State: Disabled"));
 395    if (wd->state)
 396      {
 397         if (wd->ontext)
 398           {
 399              char buf[1024];
 400
 401              snprintf(buf, sizeof(buf), "%s: %s", E_("State"), wd->ontext);
 402              return strdup(buf);
 403           }
 404         else
 405            return strdup(E_("State: On"));
 406      }
 407    if (wd->offtext)
 408      {
 409         char buf[1024];
 410
 411         snprintf(buf, sizeof(buf), "%s: %s", E_("State"), wd->offtext);
 412         return strdup(buf);
 413      }
 414    return strdup(E_("State: Off"));
 415 }
 416
 417 EAPI Evas_Object *
 418 elm_check_add(Evas_Object *parent)
 419 {
 420    Evas_Object *obj;
 421    Evas *e;
 422    Widget_Data *wd;
 423
 424    ELM_WIDGET_STANDARD_SETUP(wd, Widget_Data, parent, e, obj, NULL);
 425
 426    ELM_SET_WIDTYPE(widtype, "check");
 427    elm_widget_type_set(obj, "check");
 428    elm_widget_sub_object_add(parent, obj);
 429    elm_widget_on_focus_hook_set(obj, _on_focus_hook, NULL);
 430    elm_widget_data_set(obj, wd);
 431    elm_widget_del_hook_set(obj, _del_hook);
 432    elm_widget_theme_hook_set(obj, _theme_hook);
 433    elm_widget_disable_hook_set(obj, _disable_hook);
 434    elm_widget_can_focus_set(obj, EINA_TRUE);
 435    elm_widget_activate_hook_set(obj, _activate_hook);
 436    elm_widget_event_hook_set(obj, _event_hook);
 437    elm_widget_signal_emit_hook_set(obj, _signal_emit_hook);
 438    elm_widget_signal_callback_add_hook_set(obj, _signal_callback_add_hook);
 439    elm_widget_signal_callback_del_hook_set(obj, _signal_callback_del_hook);
 440    elm_widget_text_set_hook_set(obj, _elm_check_label_set);
 441    elm_widget_text_get_hook_set(obj, _elm_check_label_get);
 442    elm_widget_content_set_hook_set(obj, _content_set_hook);
 443    elm_widget_content_get_hook_set(obj, _content_get_hook);
 444    elm_widget_content_unset_hook_set(obj, _content_unset_hook);
 445
 446    wd->chk = edje_object_add(e);
 447    _elm_theme_object_set(obj, wd->chk, "check", "base", "default");
 448    edje_object_signal_callback_add(wd->chk, "elm,action,check,on", "",
 449                                    _signal_check_on, obj);
 450    edje_object_signal_callback_add(wd->chk, "elm,action,check,off", "",
 451                                    _signal_check_off, obj);
 452    edje_object_signal_callback_add(wd->chk, "elm,action,check,toggle", "",
 453                                    _signal_check_toggle, obj);
 454    elm_widget_resize_object_set(obj, wd->chk);
 455
 456    evas_object_smart_callback_add(obj, "sub-object-del", _sub_del, obj);
 457
 458    _mirrored_set(obj, elm_widget_mirrored_get(obj));
 459    _sizing_eval(obj);
 460
 461    // TODO: convert Elementary to subclassing of Evas_Smart_Class
 462    // TODO: and save some bytes, making descriptions per-class and not instance!
 463    evas_object_smart_callbacks_descriptions_set(obj, _signals);
 464
 465    _elm_access_object_register(obj, wd->chk);
 466    _elm_access_text_set(_elm_access_object_get(obj),
 467                         ELM_ACCESS_TYPE, E_("Check"));
 468    _elm_access_callback_set(_elm_access_object_get(obj),
 469                             ELM_ACCESS_INFO, _access_info_cb, obj);
 470    _elm_access_callback_set(_elm_access_object_get(obj),
 471                             ELM_ACCESS_STATE, _access_state_cb, obj);
 472    return obj;
 473 }
 474
 475 EAPI void
 476 elm_check_state_set(Evas_Object *obj, Eina_Bool state)
 477 {
 478    ELM_CHECK_WIDTYPE(obj, widtype);
 479    Widget_Data *wd = elm_widget_data_get(obj);
 480    if (!wd) return;
 481    if (state != wd->state)
 482      {
 483         wd->state = state;
 484         if (wd->statep) *wd->statep = wd->state;
 485         if (wd->state)
 486           edje_object_signal_emit(wd->chk, "elm,state,check,on", "elm");
 487         else
 488           edje_object_signal_emit(wd->chk, "elm,state,check,off", "elm");
 489      }
 490    edje_object_message_signal_process(wd->chk);
 491 }
 492
 493 EAPI Eina_Bool
 494 elm_check_state_get(const Evas_Object *obj)
 495 {
 496    ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
 497    Widget_Data *wd = elm_widget_data_get(obj);
 498    if (!wd) return EINA_FALSE;
 499    return wd->state;
 500 }
 501
 502 EAPI void
 503 elm_check_state_pointer_set(Evas_Object *obj, Eina_Bool *statep)
 504 {
 505    ELM_CHECK_WIDTYPE(obj, widtype);
 506    Widget_Data *wd = elm_widget_data_get(obj);
 507    if (!wd) return;
 508    if (statep)
 509      {
 510         wd->statep = statep;
 511         if (*wd->statep != wd->state)
 512           {
 513              wd->state = *wd->statep;
 514              if (wd->state)
 515                edje_object_signal_emit(wd->chk, "elm,state,check,on", "elm");
 516              else
 517                edje_object_signal_emit(wd->chk, "elm,state,check,off", "elm");
 518           }
 519      }
 520    else
 521      wd->statep = NULL;
 522 }