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    unsigned int counter = 0;
  99    unsigned int i = 1;
 100    unsigned int length = 0;
 101    const char *str = NULL;
 102    char labels[128] ;
 103    char buffer[PATH_MAX]={'\0',};
 104    char s1[PATH_MAX] = {'\0',};
 105    Widget_Data *wd = elm_widget_data_get(obj);
 106    if (!wd) return;
 107
 108    _elm_widget_mirrored_reload(obj);
 109    _mirrored_set(obj, elm_widget_mirrored_get(obj));
 110    _elm_theme_object_set(obj, wd->chk, "check", "base", elm_widget_style_get(obj));
 111    if (wd->icon)
 112      edje_object_signal_emit(wd->chk, "elm,state,icon,visible", "elm");
 113    else
 114      edje_object_signal_emit(wd->chk, "elm,state,icon,hidden", "elm");
 115    if (wd->state)
 116      edje_object_signal_emit(wd->chk, "elm,state,check,on", "elm");
 117    else
 118      edje_object_signal_emit(wd->chk, "elm,state,check,off", "elm");
 119    if (wd->label)
 120      edje_object_signal_emit(wd->chk, "elm,state,text,visible", "elm");
 121    else
 122      edje_object_signal_emit(wd->chk, "elm,state,text,hidden", "elm");
 123    edje_object_part_text_set(wd->chk, "elm.text", wd->label);
 124    edje_object_part_text_set(wd->chk, "elm.ontext", wd->ontext);
 125    edje_object_part_text_set(wd->chk, "elm.offtext", wd->offtext);
 126    if (elm_widget_disabled_get(obj))
 127      edje_object_signal_emit(wd->chk, "elm,state,disabled", "elm");
 128    edje_object_message_signal_process(wd->chk);
 129    edje_object_scale_set(wd->chk, elm_widget_scale_get(obj) * _elm_config->scale);
 130
 131    //introduced internationalization of additional text parts used in style
 132    while (1)
 133      {
 134         // s1 is  used  to store part name while buffer is used to store the part's value string
 135         snprintf(labels,sizeof(labels),"label_%d",i++);
 136         str = edje_object_data_get(wd->chk,labels);
 137         if (!str) break;
 138         length = strlen(str);
 139         while ((str[counter]!= ' ') && (counter < length))
 140           counter++;
 141         if (counter == length)
 142           continue;
 143         strncpy(s1, str, counter);
 144         s1[counter] = '\0';
 145         strncpy(buffer, str + counter, sizeof(buffer));
 146         edje_object_part_text_set(wd->chk, s1, E_(buffer));
 147      }
 148    _sizing_eval(obj);
 149 }
 150
 151 static void
 152 _disable_hook(Evas_Object *obj)
 153 {
 154    Widget_Data *wd = elm_widget_data_get(obj);
 155    if (!wd) return;
 156    if (elm_widget_disabled_get(obj))
 157      edje_object_signal_emit(wd->chk, "elm,state,disabled", "elm");
 158    else
 159      edje_object_signal_emit(wd->chk, "elm,state,enabled", "elm");
 160 }
 161
 162 static void
 163 _sizing_eval(Evas_Object *obj)
 164 {
 165    Widget_Data *wd = elm_widget_data_get(obj);
 166    Evas_Coord minw = -1, minh = -1, maxw = -1, maxh = -1;
 167    if (!wd) return;
 168    elm_coords_finger_size_adjust(1, &minw, 1, &minh);
 169    edje_object_size_min_restricted_calc(wd->chk, &minw, &minh, minw, minh);
 170    elm_coords_finger_size_adjust(1, &minw, 1, &minh);
 171    evas_object_size_hint_min_set(obj, minw, minh);
 172    evas_object_size_hint_max_set(obj, maxw, maxh);
 173 }
 174
 175 static void
 176 _changed_size_hints(void *data, Evas *e __UNUSED__, Evas_Object *obj, void *event_info __UNUSED__)
 177 {
 178    Widget_Data *wd = elm_widget_data_get(data);
 179    if (!wd) return;
 180    if (obj != wd->icon) return;
 181    _sizing_eval(data);
 182 }
 183
 184 static void
 185 _sub_del(void *data __UNUSED__, Evas_Object *obj, void *event_info)
 186 {
 187    Widget_Data *wd = elm_widget_data_get(obj);
 188    Evas_Object *sub = event_info;
 189    if (!wd) return;
 190    if (sub == wd->icon)
 191      {
 192         edje_object_signal_emit(wd->chk, "elm,state,icon,hidden", "elm");
 193         evas_object_event_callback_del_full(sub, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 194                                             _changed_size_hints, obj);
 195         wd->icon = NULL;
 196         _sizing_eval(obj);
 197         edje_object_message_signal_process(wd->chk);
 198      }
 199 }
 200
 201 static void
 202 _signal_check_off(void *data, Evas_Object *obj __UNUSED__, const char *emission __UNUSED__, const char *source __UNUSED__)
 203 {
 204    Widget_Data *wd = elm_widget_data_get(data);
 205    if (!wd) return;
 206    wd->state = EINA_FALSE;
 207    if (wd->statep) *wd->statep = wd->state;
 208    edje_object_signal_emit(wd->chk, "elm,state,check,off", "elm");
 209    evas_object_smart_callback_call(data, SIG_CHANGED, NULL);
 210 }
 211
 212 static void
 213 _signal_check_on(void *data, Evas_Object *obj __UNUSED__, const char *emission __UNUSED__, const char *source __UNUSED__)
 214 {
 215    Widget_Data *wd = elm_widget_data_get(data);
 216    if (!wd) return;
 217    wd->state = EINA_TRUE;
 218    if (wd->statep) *wd->statep = wd->state;
 219    edje_object_signal_emit(wd->chk, "elm,state,check,on", "elm");
 220    evas_object_smart_callback_call(data, SIG_CHANGED, NULL);
 221 }
 222
 223 static void
 224 _signal_check_toggle(void *data, Evas_Object *obj __UNUSED__, const char *emission __UNUSED__, const char *source __UNUSED__)
 225 {
 226    _activate(data);
 227 }
 228
 229 static void
 230 _activate_hook(Evas_Object *obj)
 231 {
 232    _activate(obj);
 233 }
 234
 235 static void
 236 _content_set_hook(Evas_Object *obj, const char *part __UNUSED__, Evas_Object *content)
 237 {
 238    ELM_CHECK_WIDTYPE(obj, widtype);
 239    Widget_Data *wd = elm_widget_data_get(obj);
 240    if (!wd) return;
 241    if (wd->icon == content) return;
 242    if (wd->icon) evas_object_del(wd->icon);
 243    wd->icon = content;
 244    if (content)
 245      {
 246         elm_widget_sub_object_add(obj, content);
 247         evas_object_event_callback_add(content,
 248                                        EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 249                                        _changed_size_hints, obj);
 250         edje_object_part_swallow(wd->chk, "elm.swallow.content", content);
 251         edje_object_signal_emit(wd->chk, "elm,state,icon,visible", "elm");
 252         edje_object_message_signal_process(wd->chk);
 253      }
 254    _sizing_eval(obj);
 255 }
 256
 257 static Evas_Object *
 258 _content_get_hook(const Evas_Object *obj, const char *part __UNUSED__)
 259 {
 260    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 261    Widget_Data *wd = elm_widget_data_get(obj);
 262    if (!wd) return NULL;
 263    return wd->icon;
 264 }
 265
 266 static Evas_Object *
 267 _content_unset_hook(Evas_Object *obj, const char *part __UNUSED__)
 268 {
 269    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 270    Widget_Data *wd = elm_widget_data_get(obj);
 271    if (!wd) return NULL;
 272    if (!wd->icon) return NULL;
 273    Evas_Object *icon = wd->icon;
 274    elm_widget_sub_object_del(obj, wd->icon);
 275    evas_object_event_callback_del_full(wd->icon,
 276                                        EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 277                                        _changed_size_hints, obj);
 278    edje_object_part_unswallow(wd->chk, wd->icon);
 279    wd->icon = NULL;
 280    return icon;
 281 }
 282
 283 static void
 284 _activate(Evas_Object *obj)
 285 {
 286    Widget_Data *wd = elm_widget_data_get(obj);
 287    if (!wd) return;
 288    if ((_elm_config->access_mode == ELM_ACCESS_MODE_OFF) ||
 289        (_elm_access_2nd_click_timeout(obj)))
 290      {
 291         wd->state = !wd->state;
 292         if (wd->statep) *wd->statep = wd->state;
 293         if (wd->state)
 294           {
 295              edje_object_signal_emit(wd->chk, "elm,state,check,on", "elm");
 296              if (_elm_config->access_mode != ELM_ACCESS_MODE_OFF)
 297                {
 298                   if (!wd->ontext)
 299                     {
 300                        _elm_access_say(E_("State: On"));
 301                     }
 302                   else
 303                      _elm_access_say(E_("State: On"));
 304                }
 305           }
 306         else
 307           {
 308              edje_object_signal_emit(wd->chk, "elm,state,check,off", "elm");
 309              if (_elm_config->access_mode != ELM_ACCESS_MODE_OFF)
 310                {
 311                   if (!wd->offtext)
 312                     {
 313                        _elm_access_say(E_("State: Off"));
 314                     }
 315                   else
 316                      _elm_access_say(E_("State: Off"));
 317                }
 318           }
 319         evas_object_smart_callback_call(obj, SIG_CHANGED, NULL);
 320      }
 321 }
 322
 323 static void
 324 _elm_check_label_set(Evas_Object *obj, const char *item, const char *label)
 325 {
 326    ELM_CHECK_WIDTYPE(obj, widtype);
 327    Widget_Data *wd = elm_widget_data_get(obj);
 328    if (!wd) return;
 329    if ((!item) || (!strcmp(item, "default")))
 330      {
 331         eina_stringshare_replace(&wd->label, label);
 332         if (label)
 333            edje_object_signal_emit(wd->chk, "elm,state,text,visible", "elm");
 334         else
 335            edje_object_signal_emit(wd->chk, "elm,state,text,hidden", "elm");
 336         edje_object_message_signal_process(wd->chk);
 337         edje_object_part_text_set(wd->chk, "elm.text", label);
 338      }
 339    else if ((item) && (!strcmp(item, "on")))
 340      {
 341         eina_stringshare_replace(&wd->ontext, label);
 342         edje_object_part_text_set(wd->chk, "elm.ontext", wd->ontext);
 343      }
 344    else if ((item) && (!strcmp(item, "off")))
 345      {
 346         eina_stringshare_replace(&wd->offtext, label);
 347         edje_object_part_text_set(wd->chk, "elm.offtext", wd->offtext);
 348      }
 349    _sizing_eval(obj);
 350 }
 351
 352 static const char *
 353 _elm_check_label_get(const Evas_Object *obj, const char *item)
 354 {
 355    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 356    Widget_Data *wd = elm_widget_data_get(obj);
 357    if (!wd) return NULL;
 358    if ((!item) || (!strcmp(item, "default")))
 359       return wd->label;
 360    else if ((item) && (!strcmp(item, "on")))
 361       return wd->ontext;
 362    else if ((item) && (!strcmp(item, "off")))
 363       return wd->offtext;
 364    return NULL;
 365 }
 366
 367 static char *
 368 _access_info_cb(void *data __UNUSED__, Evas_Object *obj, Elm_Widget_Item *item __UNUSED__)
 369 {
 370    const char *txt = elm_widget_access_info_get(obj);
 371    if (!txt) txt = _elm_check_label_get(obj, NULL);
 372    if (txt) return strdup(txt);
 373    return NULL;
 374 }
 375
 376 static char *
 377 _access_state_cb(void *data, Evas_Object *obj, Elm_Widget_Item *item __UNUSED__)
 378 {
 379    Evas_Object *o = data;
 380    Widget_Data *wd = elm_widget_data_get(o);
 381    if (!wd) return NULL;
 382    if (elm_widget_disabled_get(obj))
 383      return strdup(E_("State: Disabled"));
 384    if (wd->state)
 385      {
 386         if (wd->ontext)
 387           {
 388              char buf[1024];
 389
 390              snprintf(buf, sizeof(buf), "%s: %s", E_("State"), wd->ontext);
 391              return strdup(buf);
 392           }
 393         else
 394            return strdup(E_("State: On"));
 395      }
 396    if (wd->offtext)
 397      {
 398         char buf[1024];
 399
 400         snprintf(buf, sizeof(buf), "%s: %s", E_("State"), wd->offtext);
 401         return strdup(buf);
 402      }
 403    return strdup(E_("State: Off"));
 404 }
 405
 406 EAPI Evas_Object *
 407 elm_check_add(Evas_Object *parent)
 408 {
 409    Evas_Object *obj;
 410    Evas *e;
 411    Widget_Data *wd;
 412
 413    ELM_WIDGET_STANDARD_SETUP(wd, Widget_Data, parent, e, obj, NULL);
 414
 415    ELM_SET_WIDTYPE(widtype, "check");
 416    elm_widget_type_set(obj, "check");
 417    elm_widget_sub_object_add(parent, obj);
 418    elm_widget_on_focus_hook_set(obj, _on_focus_hook, NULL);
 419    elm_widget_data_set(obj, wd);
 420    elm_widget_del_hook_set(obj, _del_hook);
 421    elm_widget_theme_hook_set(obj, _theme_hook);
 422    elm_widget_disable_hook_set(obj, _disable_hook);
 423    elm_widget_can_focus_set(obj, EINA_TRUE);
 424    elm_widget_activate_hook_set(obj, _activate_hook);
 425    elm_widget_event_hook_set(obj, _event_hook);
 426    elm_widget_text_set_hook_set(obj, _elm_check_label_set);
 427    elm_widget_text_get_hook_set(obj, _elm_check_label_get);
 428    elm_widget_content_set_hook_set(obj, _content_set_hook);
 429    elm_widget_content_get_hook_set(obj, _content_get_hook);
 430    elm_widget_content_unset_hook_set(obj, _content_unset_hook);
 431
 432    wd->chk = edje_object_add(e);
 433    _elm_theme_object_set(obj, wd->chk, "check", "base", "default");
 434    edje_object_signal_callback_add(wd->chk, "elm,action,check,on", "",
 435                                    _signal_check_on, obj);
 436    edje_object_signal_callback_add(wd->chk, "elm,action,check,off", "",
 437                                    _signal_check_off, obj);
 438    edje_object_signal_callback_add(wd->chk, "elm,action,check,toggle", "",
 439                                    _signal_check_toggle, obj);
 440    elm_widget_resize_object_set(obj, wd->chk);
 441
 442    evas_object_smart_callback_add(obj, "sub-object-del", _sub_del, obj);
 443
 444    _mirrored_set(obj, elm_widget_mirrored_get(obj));
 445    _sizing_eval(obj);
 446
 447    // TODO: convert Elementary to subclassing of Evas_Smart_Class
 448    // TODO: and save some bytes, making descriptions per-class and not instance!
 449    evas_object_smart_callbacks_descriptions_set(obj, _signals);
 450
 451    _elm_access_object_register(obj, wd->chk);
 452    _elm_access_text_set(_elm_access_object_get(obj),
 453                         ELM_ACCESS_TYPE, E_("Check"));
 454    _elm_access_callback_set(_elm_access_object_get(obj),
 455                             ELM_ACCESS_INFO, _access_info_cb, obj);
 456    _elm_access_callback_set(_elm_access_object_get(obj),
 457                             ELM_ACCESS_STATE, _access_state_cb, obj);
 458    return obj;
 459 }
 460
 461 EAPI void
 462 elm_check_label_set(Evas_Object *obj, const char *label)
 463 {
 464    _elm_check_label_set(obj, NULL, label);
 465 }
 466
 467 EAPI const char *
 468 elm_check_label_get(const Evas_Object *obj)
 469 {
 470    return _elm_check_label_get(obj, NULL);
 471 }
 472
 473 EAPI void
 474 elm_check_states_labels_set(Evas_Object *obj, const char *ontext, const char *offtext)
 475 {
 476    _elm_check_label_set(obj, "on", ontext);
 477    _elm_check_label_set(obj, "off", offtext);
 478 }
 479
 480 EAPI void
 481 elm_check_states_labels_get(const Evas_Object *obj, const char **ontext, const char **offtext)
 482 {
 483    if (ontext) *ontext = _elm_check_label_get(obj, "on");
 484    if (offtext) *offtext = _elm_check_label_get(obj, "off");
 485 }
 486
 487 EAPI void
 488 elm_check_icon_set(Evas_Object *obj, Evas_Object *icon)
 489 {
 490    _content_set_hook(obj, NULL, icon);
 491 }
 492
 493 EAPI Evas_Object *
 494 elm_check_icon_get(const Evas_Object *obj)
 495 {
 496    return _content_get_hook(obj, NULL);
 497 }
 498
 499 EAPI Evas_Object *
 500 elm_check_icon_unset(Evas_Object *obj)
 501 {
 502    return _content_unset_hook(obj, NULL);
 503 }
 504
 505 EAPI void
 506 elm_check_state_set(Evas_Object *obj, Eina_Bool state)
 507 {
 508    ELM_CHECK_WIDTYPE(obj, widtype);
 509    Widget_Data *wd = elm_widget_data_get(obj);
 510    if (!wd) return;
 511    if (state != wd->state)
 512      {
 513         wd->state = state;
 514         if (wd->statep) *wd->statep = wd->state;
 515         if (wd->state)
 516           edje_object_signal_emit(wd->chk, "elm,state,check,on", "elm");
 517         else
 518           edje_object_signal_emit(wd->chk, "elm,state,check,off", "elm");
 519      }
 520    edje_object_message_signal_process(wd->chk);
 521 }
 522
 523 EAPI Eina_Bool
 524 elm_check_state_get(const Evas_Object *obj)
 525 {
 526    ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
 527    Widget_Data *wd = elm_widget_data_get(obj);
 528    if (!wd) return EINA_FALSE;
 529    return wd->state;
 530 }
 531
 532 EAPI void
 533 elm_check_state_pointer_set(Evas_Object *obj, Eina_Bool *statep)
 534 {
 535    ELM_CHECK_WIDTYPE(obj, widtype);
 536    Widget_Data *wd = elm_widget_data_get(obj);
 537    if (!wd) return;
 538    if (statep)
 539      {
 540         wd->statep = statep;
 541         if (*wd->statep != wd->state)
 542           {
 543              wd->state = *wd->statep;
 544              if (wd->state)
 545                edje_object_signal_emit(wd->chk, "elm,state,check,on", "elm");
 546              else
 547                edje_object_signal_emit(wd->chk, "elm,state,check,off", "elm");
 548           }
 549      }
 550    else
 551      wd->statep = NULL;
 552 }