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 _content_set_hook(Evas_Object *obj, const char *part, Evas_Object *content);
  29 static Evas_Object *_content_get_hook(const Evas_Object *obj, const char *part);
  30 static Evas_Object *_content_unset_hook(Evas_Object *obj, const char *part);
  31
  32 static void _activate(Evas_Object *obj);
  33 static Eina_Bool _event_hook(Evas_Object *obj, Evas_Object *src,
  34                              Evas_Callback_Type type, void *event_info);
  35
  36 static const char SIG_CHANGED[] = "changed";
  37 static const Evas_Smart_Cb_Description _signals[] = {
  38        {SIG_CHANGED, ""},
  39        {NULL, NULL}
  40 };
  41
  42 static Eina_Bool
  43 _event_hook(Evas_Object *obj, Evas_Object *src __UNUSED__, Evas_Callback_Type type, void *event_info)
  44 {
  45    if (type != EVAS_CALLBACK_KEY_DOWN) return EINA_FALSE;
  46    Evas_Event_Key_Down *ev = event_info;
  47    if (ev->event_flags & EVAS_EVENT_FLAG_ON_HOLD) return EINA_FALSE;
  48    if (elm_widget_disabled_get(obj)) return EINA_FALSE;
  49    if ((strcmp(ev->keyname, "Return")) &&
  50        (strcmp(ev->keyname, "KP_Enter")) &&
  51        (strcmp(ev->keyname, "space")))
  52      return EINA_FALSE;
  53    _activate(obj);
  54    ev->event_flags |= EVAS_EVENT_FLAG_ON_HOLD;
  55    return EINA_TRUE;
  56 }
  57
  58
  59 static void
  60 _del_hook(Evas_Object *obj)
  61 {
  62    Widget_Data *wd = elm_widget_data_get(obj);
  63    if (!wd) return;
  64    if (wd->label) eina_stringshare_del(wd->label);
  65    if (wd->ontext) eina_stringshare_del(wd->ontext);
  66    if (wd->offtext) eina_stringshare_del(wd->offtext);
  67    free(wd);
  68 }
  69
  70 static void
  71 _on_focus_hook(void *data __UNUSED__, Evas_Object *obj)
  72 {
  73    Widget_Data *wd = elm_widget_data_get(obj);
  74    if (!wd) return;
  75    if (elm_widget_focus_get(obj))
  76      {
  77         edje_object_signal_emit(wd->chk, "elm,action,focus", "elm");
  78         evas_object_focus_set(wd->chk, EINA_TRUE);
  79      }
  80    else
  81      {
  82         edje_object_signal_emit(wd->chk, "elm,action,unfocus", "elm");
  83         evas_object_focus_set(wd->chk, EINA_FALSE);
  84      }
  85 }
  86
  87 static void
  88 _mirrored_set(Evas_Object *obj, Eina_Bool rtl)
  89 {
  90    Widget_Data *wd = elm_widget_data_get(obj);
  91    if (!wd) return;
  92    edje_object_mirrored_set(wd->chk, rtl);
  93 }
  94
  95 static void
  96 _theme_hook(Evas_Object *obj)
  97 {
  98    Widget_Data *wd = elm_widget_data_get(obj);
  99    if (!wd) return;
 100    _elm_widget_mirrored_reload(obj);
 101    _mirrored_set(obj, elm_widget_mirrored_get(obj));
 102    _elm_theme_object_set(obj, wd->chk, "check", "base", elm_widget_style_get(obj));
 103    if (wd->icon)
 104      edje_object_signal_emit(wd->chk, "elm,state,icon,visible", "elm");
 105    else
 106      edje_object_signal_emit(wd->chk, "elm,state,icon,hidden", "elm");
 107    if (wd->state)
 108      edje_object_signal_emit(wd->chk, "elm,state,check,on", "elm");
 109    else
 110      edje_object_signal_emit(wd->chk, "elm,state,check,off", "elm");
 111    if (wd->label)
 112      edje_object_signal_emit(wd->chk, "elm,state,text,visible", "elm");
 113    else
 114      edje_object_signal_emit(wd->chk, "elm,state,text,hidden", "elm");
 115    edje_object_part_text_set(wd->chk, "elm.text", wd->label);
 116    edje_object_part_text_set(wd->chk, "elm.ontext", wd->ontext);
 117    edje_object_part_text_set(wd->chk, "elm.offtext", wd->offtext);
 118    if (elm_widget_disabled_get(obj))
 119      edje_object_signal_emit(wd->chk, "elm,state,disabled", "elm");
 120    edje_object_message_signal_process(wd->chk);
 121    edje_object_scale_set(wd->chk, elm_widget_scale_get(obj) * _elm_config->scale);
 122    _sizing_eval(obj);
 123 }
 124
 125 static void
 126 _disable_hook(Evas_Object *obj)
 127 {
 128    Widget_Data *wd = elm_widget_data_get(obj);
 129    if (!wd) return;
 130    if (elm_widget_disabled_get(obj))
 131      edje_object_signal_emit(wd->chk, "elm,state,disabled", "elm");
 132    else
 133      edje_object_signal_emit(wd->chk, "elm,state,enabled", "elm");
 134 }
 135
 136 static void
 137 _sizing_eval(Evas_Object *obj)
 138 {
 139    Widget_Data *wd = elm_widget_data_get(obj);
 140    Evas_Coord minw = -1, minh = -1, maxw = -1, maxh = -1;
 141    if (!wd) return;
 142    elm_coords_finger_size_adjust(1, &minw, 1, &minh);
 143    edje_object_size_min_restricted_calc(wd->chk, &minw, &minh, minw, minh);
 144    elm_coords_finger_size_adjust(1, &minw, 1, &minh);
 145    evas_object_size_hint_min_set(obj, minw, minh);
 146    evas_object_size_hint_max_set(obj, maxw, maxh);
 147 }
 148
 149 static void
 150 _changed_size_hints(void *data, Evas *e __UNUSED__, Evas_Object *obj, void *event_info __UNUSED__)
 151 {
 152    Widget_Data *wd = elm_widget_data_get(data);
 153    if (!wd) return;
 154    if (obj != wd->icon) return;
 155    _sizing_eval(data);
 156 }
 157
 158 static void
 159 _sub_del(void *data __UNUSED__, Evas_Object *obj, void *event_info)
 160 {
 161    Widget_Data *wd = elm_widget_data_get(obj);
 162    Evas_Object *sub = event_info;
 163    if (!wd) return;
 164    if (sub == wd->icon)
 165      {
 166         edje_object_signal_emit(wd->chk, "elm,state,icon,hidden", "elm");
 167         evas_object_event_callback_del_full(sub, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 168                                             _changed_size_hints, obj);
 169         wd->icon = NULL;
 170         _sizing_eval(obj);
 171         edje_object_message_signal_process(wd->chk);
 172      }
 173 }
 174
 175 static void
 176 _signal_check_off(void *data, Evas_Object *obj __UNUSED__, const char *emission __UNUSED__, const char *source __UNUSED__)
 177 {
 178    Widget_Data *wd = elm_widget_data_get(data);
 179    if (!wd) return;
 180    wd->state = EINA_FALSE;
 181    if (wd->statep) *wd->statep = wd->state;
 182    edje_object_signal_emit(wd->chk, "elm,state,check,off", "elm");
 183    evas_object_smart_callback_call(data, SIG_CHANGED, NULL);
 184 }
 185
 186 static void
 187 _signal_check_on(void *data, Evas_Object *obj __UNUSED__, const char *emission __UNUSED__, const char *source __UNUSED__)
 188 {
 189    Widget_Data *wd = elm_widget_data_get(data);
 190    if (!wd) return;
 191    wd->state = EINA_TRUE;
 192    if (wd->statep) *wd->statep = wd->state;
 193    edje_object_signal_emit(wd->chk, "elm,state,check,on", "elm");
 194    evas_object_smart_callback_call(data, SIG_CHANGED, NULL);
 195 }
 196
 197 static void
 198 _signal_check_toggle(void *data, Evas_Object *obj __UNUSED__, const char *emission __UNUSED__, const char *source __UNUSED__)
 199 {
 200    _activate(data);
 201 }
 202
 203 static void
 204 _activate_hook(Evas_Object *obj)
 205 {
 206    _activate(obj);
 207 }
 208
 209 static void
 210 _content_set_hook(Evas_Object *obj, const char *part, Evas_Object *content)
 211 {
 212    ELM_CHECK_WIDTYPE(obj, widtype);
 213    Widget_Data *wd;
 214
 215    if (strcmp(part, "icon")) return;
 216    wd = elm_widget_data_get(obj);
 217    if (!wd) return;
 218    if (wd->icon == content) return;
 219    if (wd->icon) evas_object_del(wd->icon);
 220    wd->icon = content;
 221    if (content)
 222      {
 223         elm_widget_sub_object_add(obj, content);
 224         evas_object_event_callback_add(content,
 225                                        EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 226                                        _changed_size_hints, obj);
 227         edje_object_part_swallow(wd->chk, "elm.swallow.content", content);
 228         edje_object_signal_emit(wd->chk, "elm,state,icon,visible", "elm");
 229         edje_object_message_signal_process(wd->chk);
 230      }
 231    _sizing_eval(obj);
 232 }
 233
 234 static Evas_Object *
 235 _content_get_hook(const Evas_Object *obj, const char *part)
 236 {
 237    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 238    Widget_Data *wd;
 239
 240    if (strcmp(part, "icon")) return NULL;
 241    wd = elm_widget_data_get(obj);
 242    if (!wd) return NULL;
 243    return wd->icon;
 244 }
 245
 246 static Evas_Object *
 247 _content_unset_hook(Evas_Object *obj, const char *part)
 248 {
 249    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 250    Widget_Data *wd;
 251
 252    if (strcmp(part, "icon")) return NULL;
 253    wd = elm_widget_data_get(obj);
 254    if (!wd) return NULL;
 255    if (!wd->icon) return NULL;
 256    Evas_Object *icon = wd->icon;
 257    elm_widget_sub_object_del(obj, wd->icon);
 258    evas_object_event_callback_del_full(wd->icon,
 259                                        EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 260                                        _changed_size_hints, obj);
 261    edje_object_part_unswallow(wd->chk, wd->icon);
 262    wd->icon = NULL;
 263    return icon;
 264 }
 265
 266 static void
 267 _activate(Evas_Object *obj)
 268 {
 269    Widget_Data *wd = elm_widget_data_get(obj);
 270    if (!wd) return;
 271    if ((_elm_config->access_mode == ELM_ACCESS_MODE_OFF) ||
 272        (_elm_access_2nd_click_timeout(obj)))
 273      {
 274         wd->state = !wd->state;
 275         if (wd->statep) *wd->statep = wd->state;
 276         if (wd->state)
 277           {
 278              edje_object_signal_emit(wd->chk, "elm,state,check,on", "elm");
 279              if (_elm_config->access_mode != ELM_ACCESS_MODE_OFF)
 280                {
 281                   if (!wd->ontext)
 282                     {
 283                        _elm_access_say(E_("State: On"));
 284                     }
 285                   else
 286                      _elm_access_say(E_("State: On"));
 287                }
 288           }
 289         else
 290           {
 291              edje_object_signal_emit(wd->chk, "elm,state,check,off", "elm");
 292              if (_elm_config->access_mode != ELM_ACCESS_MODE_OFF)
 293                {
 294                   if (!wd->offtext)
 295                     {
 296                        _elm_access_say(E_("State: Off"));
 297                     }
 298                   else
 299                      _elm_access_say(E_("State: Off"));
 300                }
 301           }
 302         evas_object_smart_callback_call(obj, SIG_CHANGED, NULL);
 303      }
 304 }
 305
 306 static void
 307 _elm_check_label_set(Evas_Object *obj, const char *item, const char *label)
 308 {
 309    ELM_CHECK_WIDTYPE(obj, widtype);
 310    Widget_Data *wd = elm_widget_data_get(obj);
 311    if (!wd) return;
 312    if ((!item) || (!strcmp(item, "default")))
 313      {
 314         eina_stringshare_replace(&wd->label, label);
 315         if (label)
 316            edje_object_signal_emit(wd->chk, "elm,state,text,visible", "elm");
 317         else
 318            edje_object_signal_emit(wd->chk, "elm,state,text,hidden", "elm");
 319         edje_object_message_signal_process(wd->chk);
 320         edje_object_part_text_set(wd->chk, "elm.text", label);
 321      }
 322    else if ((item) && (!strcmp(item, "on")))
 323      {
 324         eina_stringshare_replace(&wd->ontext, label);
 325         edje_object_part_text_set(wd->chk, "elm.ontext", wd->ontext);
 326      }
 327    else if ((item) && (!strcmp(item, "off")))
 328      {
 329         eina_stringshare_replace(&wd->offtext, label);
 330         edje_object_part_text_set(wd->chk, "elm.offtext", wd->offtext);
 331      }
 332    _sizing_eval(obj);
 333 }
 334
 335 static const char *
 336 _elm_check_label_get(const Evas_Object *obj, const char *item)
 337 {
 338    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 339    Widget_Data *wd = elm_widget_data_get(obj);
 340    if (!wd) return NULL;
 341    if ((!item) || (!strcmp(item, "default")))
 342       return wd->label;
 343    else if ((item) && (!strcmp(item, "on")))
 344       return wd->ontext;
 345    else if ((item) && (!strcmp(item, "off")))
 346       return wd->offtext;
 347    return NULL;
 348 }
 349
 350 static char *
 351 _access_info_cb(void *data __UNUSED__, Evas_Object *obj, Elm_Widget_Item *item __UNUSED__)
 352 {
 353    const char *txt = elm_widget_access_info_get(obj);
 354    if (!txt) txt = _elm_check_label_get(obj, NULL);
 355    if (txt) return strdup(txt);
 356    return NULL;
 357 }
 358
 359 static char *
 360 _access_state_cb(void *data, Evas_Object *obj, Elm_Widget_Item *item __UNUSED__)
 361 {
 362    Evas_Object *o = data;
 363    Widget_Data *wd = elm_widget_data_get(o);
 364    if (!wd) return NULL;
 365    if (elm_widget_disabled_get(obj))
 366      return strdup(E_("State: Disabled"));
 367    if (wd->state)
 368      {
 369         if (wd->ontext)
 370           {
 371              char buf[1024];
 372
 373              snprintf(buf, sizeof(buf), "%s: %s", E_("State"), wd->ontext);
 374              return strdup(buf);
 375           }
 376         else
 377            return strdup(E_("State: On"));
 378      }
 379    if (wd->offtext)
 380      {
 381         char buf[1024];
 382
 383         snprintf(buf, sizeof(buf), "%s: %s", E_("State"), wd->offtext);
 384         return strdup(buf);
 385      }
 386    return strdup(E_("State: Off"));
 387 }
 388
 389 EAPI Evas_Object *
 390 elm_check_add(Evas_Object *parent)
 391 {
 392    Evas_Object *obj;
 393    Evas *e;
 394    Widget_Data *wd;
 395
 396    ELM_WIDGET_STANDARD_SETUP(wd, Widget_Data, parent, e, obj, NULL);
 397
 398    ELM_SET_WIDTYPE(widtype, "check");
 399    elm_widget_type_set(obj, "check");
 400    elm_widget_sub_object_add(parent, obj);
 401    elm_widget_on_focus_hook_set(obj, _on_focus_hook, NULL);
 402    elm_widget_data_set(obj, wd);
 403    elm_widget_del_hook_set(obj, _del_hook);
 404    elm_widget_theme_hook_set(obj, _theme_hook);
 405    elm_widget_disable_hook_set(obj, _disable_hook);
 406    elm_widget_can_focus_set(obj, EINA_TRUE);
 407    elm_widget_activate_hook_set(obj, _activate_hook);
 408    elm_widget_event_hook_set(obj, _event_hook);
 409    elm_widget_text_set_hook_set(obj, _elm_check_label_set);
 410    elm_widget_text_get_hook_set(obj, _elm_check_label_get);
 411    elm_widget_content_set_hook_set(obj, _content_set_hook);
 412    elm_widget_content_get_hook_set(obj, _content_get_hook);
 413    elm_widget_content_unset_hook_set(obj, _content_unset_hook);
 414
 415    wd->chk = edje_object_add(e);
 416    _elm_theme_object_set(obj, wd->chk, "check", "base", "default");
 417    edje_object_signal_callback_add(wd->chk, "elm,action,check,on", "",
 418                                    _signal_check_on, obj);
 419    edje_object_signal_callback_add(wd->chk, "elm,action,check,off", "",
 420                                    _signal_check_off, obj);
 421    edje_object_signal_callback_add(wd->chk, "elm,action,check,toggle", "",
 422                                    _signal_check_toggle, obj);
 423    elm_widget_resize_object_set(obj, wd->chk);
 424
 425    evas_object_smart_callback_add(obj, "sub-object-del", _sub_del, obj);
 426
 427    _mirrored_set(obj, elm_widget_mirrored_get(obj));
 428    _sizing_eval(obj);
 429
 430    // TODO: convert Elementary to subclassing of Evas_Smart_Class
 431    // TODO: and save some bytes, making descriptions per-class and not instance!
 432    evas_object_smart_callbacks_descriptions_set(obj, _signals);
 433
 434    _elm_access_object_register(obj, wd->chk);
 435    _elm_access_text_set(_elm_access_object_get(obj),
 436                         ELM_ACCESS_TYPE, E_("Check"));
 437    _elm_access_callback_set(_elm_access_object_get(obj),
 438                             ELM_ACCESS_INFO, _access_info_cb, obj);
 439    _elm_access_callback_set(_elm_access_object_get(obj),
 440                             ELM_ACCESS_STATE, _access_state_cb, obj);
 441    return obj;
 442 }
 443
 444 EAPI void
 445 elm_check_label_set(Evas_Object *obj, const char *label)
 446 {
 447    _elm_check_label_set(obj, NULL, label);
 448 }
 449
 450 EAPI const char *
 451 elm_check_label_get(const Evas_Object *obj)
 452 {
 453    return _elm_check_label_get(obj, NULL);
 454 }
 455
 456 EAPI void
 457 elm_check_states_labels_set(Evas_Object *obj, const char *ontext, const char *offtext)
 458 {
 459    _elm_check_label_set(obj, "on", ontext);
 460    _elm_check_label_set(obj, "off", offtext);
 461 }
 462
 463 EAPI void
 464 elm_check_states_labels_get(const Evas_Object *obj, const char **ontext, const char **offtext)
 465 {
 466    if (ontext) *ontext = _elm_check_label_get(obj, "on");
 467    if (offtext) *offtext = _elm_check_label_get(obj, "off");
 468 }
 469
 470 EAPI void
 471 elm_check_icon_set(Evas_Object *obj, Evas_Object *icon)
 472 {
 473    _content_set_hook(obj, "icon", icon);
 474 }
 475
 476 EAPI Evas_Object *
 477 elm_check_icon_get(const Evas_Object *obj)
 478 {
 479    return _content_get_hook(obj, "icon");
 480 }
 481
 482 EAPI Evas_Object *
 483 elm_check_icon_unset(Evas_Object *obj)
 484 {
 485    return _content_unset_hook(obj, "icon");
 486 }
 487
 488 EAPI void
 489 elm_check_state_set(Evas_Object *obj, Eina_Bool state)
 490 {
 491    ELM_CHECK_WIDTYPE(obj, widtype);
 492    Widget_Data *wd = elm_widget_data_get(obj);
 493    if (!wd) return;
 494    if (state != wd->state)
 495      {
 496         wd->state = state;
 497         if (wd->statep) *wd->statep = wd->state;
 498         if (wd->state)
 499           edje_object_signal_emit(wd->chk, "elm,state,check,on", "elm");
 500         else
 501           edje_object_signal_emit(wd->chk, "elm,state,check,off", "elm");
 502      }
 503    edje_object_message_signal_process(wd->chk);
 504 }
 505
 506 EAPI Eina_Bool
 507 elm_check_state_get(const Evas_Object *obj)
 508 {
 509    ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
 510    Widget_Data *wd = elm_widget_data_get(obj);
 511    if (!wd) return EINA_FALSE;
 512    return wd->state;
 513 }
 514
 515 EAPI void
 516 elm_check_state_pointer_set(Evas_Object *obj, Eina_Bool *statep)
 517 {
 518    ELM_CHECK_WIDTYPE(obj, widtype);
 519    Widget_Data *wd = elm_widget_data_get(obj);
 520    if (!wd) return;
 521    if (statep)
 522      {
 523         wd->statep = statep;
 524         if (*wd->statep != wd->state)
 525           {
 526              wd->state = *wd->statep;
 527              if (wd->state)
 528                edje_object_signal_emit(wd->chk, "elm,state,check,on", "elm");
 529              else
 530                edje_object_signal_emit(wd->chk, "elm,state,check,off", "elm");
 531           }
 532      }
 533    else
 534      wd->statep = NULL;
 535 }