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 __UNUSED__, Evas_Object *content)
 211 {
 212    ELM_CHECK_WIDTYPE(obj, widtype);
 213    Widget_Data *wd = elm_widget_data_get(obj);
 214    if (!wd) return;
 215    if (wd->icon == content) return;
 216    if (wd->icon) evas_object_del(wd->icon);
 217    wd->icon = content;
 218    if (content)
 219      {
 220         elm_widget_sub_object_add(obj, content);
 221         evas_object_event_callback_add(content,
 222                                        EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 223                                        _changed_size_hints, obj);
 224         edje_object_part_swallow(wd->chk, "elm.swallow.content", content);
 225         edje_object_signal_emit(wd->chk, "elm,state,icon,visible", "elm");
 226         edje_object_message_signal_process(wd->chk);
 227      }
 228    _sizing_eval(obj);
 229 }
 230
 231 static Evas_Object *
 232 _content_get_hook(const Evas_Object *obj, const char *part __UNUSED__)
 233 {
 234    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 235    Widget_Data *wd = elm_widget_data_get(obj);
 236    if (!wd) return NULL;
 237    return wd->icon;
 238 }
 239
 240 static Evas_Object *
 241 _content_unset_hook(Evas_Object *obj, const char *part __UNUSED__)
 242 {
 243    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 244    Widget_Data *wd = elm_widget_data_get(obj);
 245    if (!wd) return NULL;
 246    if (!wd->icon) return NULL;
 247    Evas_Object *icon = wd->icon;
 248    elm_widget_sub_object_del(obj, wd->icon);
 249    evas_object_event_callback_del_full(wd->icon,
 250                                        EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 251                                        _changed_size_hints, obj);
 252    edje_object_part_unswallow(wd->chk, wd->icon);
 253    wd->icon = NULL;
 254    return icon;
 255 }
 256
 257 static void
 258 _activate(Evas_Object *obj)
 259 {
 260    Widget_Data *wd = elm_widget_data_get(obj);
 261    if (!wd) return;
 262    if ((_elm_config->access_mode == ELM_ACCESS_MODE_OFF) ||
 263        (_elm_access_2nd_click_timeout(obj)))
 264      {
 265         wd->state = !wd->state;
 266         if (wd->statep) *wd->statep = wd->state;
 267         if (wd->state)
 268           {
 269              edje_object_signal_emit(wd->chk, "elm,state,check,on", "elm");
 270              if (_elm_config->access_mode != ELM_ACCESS_MODE_OFF)
 271                {
 272                   if (!wd->ontext)
 273                     {
 274                        _elm_access_say(E_("State: On"));
 275                     }
 276                   else
 277                      _elm_access_say(E_("State: On"));
 278                }
 279           }
 280         else
 281           {
 282              edje_object_signal_emit(wd->chk, "elm,state,check,off", "elm");
 283              if (_elm_config->access_mode != ELM_ACCESS_MODE_OFF)
 284                {
 285                   if (!wd->offtext)
 286                     {
 287                        _elm_access_say(E_("State: Off"));
 288                     }
 289                   else
 290                      _elm_access_say(E_("State: Off"));
 291                }
 292           }
 293         evas_object_smart_callback_call(obj, SIG_CHANGED, NULL);
 294      }
 295 }
 296
 297 static void
 298 _elm_check_label_set(Evas_Object *obj, const char *item, const char *label)
 299 {
 300    ELM_CHECK_WIDTYPE(obj, widtype);
 301    Widget_Data *wd = elm_widget_data_get(obj);
 302    if (!wd) return;
 303    if ((!item) || (!strcmp(item, "default")))
 304      {
 305         eina_stringshare_replace(&wd->label, label);
 306         if (label)
 307            edje_object_signal_emit(wd->chk, "elm,state,text,visible", "elm");
 308         else
 309            edje_object_signal_emit(wd->chk, "elm,state,text,hidden", "elm");
 310         edje_object_message_signal_process(wd->chk);
 311         edje_object_part_text_set(wd->chk, "elm.text", label);
 312      }
 313    else if ((item) && (!strcmp(item, "on")))
 314      {
 315         eina_stringshare_replace(&wd->ontext, label);
 316         edje_object_part_text_set(wd->chk, "elm.ontext", wd->ontext);
 317      }
 318    else if ((item) && (!strcmp(item, "off")))
 319      {
 320         eina_stringshare_replace(&wd->offtext, label);
 321         edje_object_part_text_set(wd->chk, "elm.offtext", wd->offtext);
 322      }
 323    _sizing_eval(obj);
 324 }
 325
 326 static const char *
 327 _elm_check_label_get(const Evas_Object *obj, const char *item)
 328 {
 329    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 330    Widget_Data *wd = elm_widget_data_get(obj);
 331    if (!wd) return NULL;
 332    if ((!item) || (!strcmp(item, "default")))
 333       return wd->label;
 334    else if ((item) && (!strcmp(item, "on")))
 335       return wd->ontext;
 336    else if ((item) && (!strcmp(item, "off")))
 337       return wd->offtext;
 338    return NULL;
 339 }
 340
 341 static char *
 342 _access_info_cb(void *data __UNUSED__, Evas_Object *obj, Elm_Widget_Item *item __UNUSED__)
 343 {
 344    const char *txt = elm_widget_access_info_get(obj);
 345    if (!txt) txt = _elm_check_label_get(obj, NULL);
 346    if (txt) return strdup(txt);
 347    return NULL;
 348 }
 349
 350 static char *
 351 _access_state_cb(void *data, Evas_Object *obj, Elm_Widget_Item *item __UNUSED__)
 352 {
 353    Evas_Object *o = data;
 354    Widget_Data *wd = elm_widget_data_get(o);
 355    if (!wd) return NULL;
 356    if (elm_widget_disabled_get(obj))
 357      return strdup(E_("State: Disabled"));
 358    if (wd->state)
 359      {
 360         if (wd->ontext)
 361           {
 362              char buf[1024];
 363
 364              snprintf(buf, sizeof(buf), "%s: %s", E_("State"), wd->ontext);
 365              return strdup(buf);
 366           }
 367         else
 368            return strdup(E_("State: On"));
 369      }
 370    if (wd->offtext)
 371      {
 372         char buf[1024];
 373
 374         snprintf(buf, sizeof(buf), "%s: %s", E_("State"), wd->offtext);
 375         return strdup(buf);
 376      }
 377    return strdup(E_("State: Off"));
 378 }
 379
 380 EAPI Evas_Object *
 381 elm_check_add(Evas_Object *parent)
 382 {
 383    Evas_Object *obj;
 384    Evas *e;
 385    Widget_Data *wd;
 386
 387    ELM_WIDGET_STANDARD_SETUP(wd, Widget_Data, parent, e, obj, NULL);
 388
 389    ELM_SET_WIDTYPE(widtype, "check");
 390    elm_widget_type_set(obj, "check");
 391    elm_widget_sub_object_add(parent, obj);
 392    elm_widget_on_focus_hook_set(obj, _on_focus_hook, NULL);
 393    elm_widget_data_set(obj, wd);
 394    elm_widget_del_hook_set(obj, _del_hook);
 395    elm_widget_theme_hook_set(obj, _theme_hook);
 396    elm_widget_disable_hook_set(obj, _disable_hook);
 397    elm_widget_can_focus_set(obj, EINA_TRUE);
 398    elm_widget_activate_hook_set(obj, _activate_hook);
 399    elm_widget_event_hook_set(obj, _event_hook);
 400    elm_widget_text_set_hook_set(obj, _elm_check_label_set);
 401    elm_widget_text_get_hook_set(obj, _elm_check_label_get);
 402    elm_widget_content_set_hook_set(obj, _content_set_hook);
 403    elm_widget_content_get_hook_set(obj, _content_get_hook);
 404    elm_widget_content_unset_hook_set(obj, _content_unset_hook);
 405
 406    wd->chk = edje_object_add(e);
 407    _elm_theme_object_set(obj, wd->chk, "check", "base", "default");
 408    edje_object_signal_callback_add(wd->chk, "elm,action,check,on", "",
 409                                    _signal_check_on, obj);
 410    edje_object_signal_callback_add(wd->chk, "elm,action,check,off", "",
 411                                    _signal_check_off, obj);
 412    edje_object_signal_callback_add(wd->chk, "elm,action,check,toggle", "",
 413                                    _signal_check_toggle, obj);
 414    elm_widget_resize_object_set(obj, wd->chk);
 415
 416    evas_object_smart_callback_add(obj, "sub-object-del", _sub_del, obj);
 417
 418    _mirrored_set(obj, elm_widget_mirrored_get(obj));
 419    _sizing_eval(obj);
 420
 421    // TODO: convert Elementary to subclassing of Evas_Smart_Class
 422    // TODO: and save some bytes, making descriptions per-class and not instance!
 423    evas_object_smart_callbacks_descriptions_set(obj, _signals);
 424
 425    _elm_access_object_register(obj, wd->chk);
 426    _elm_access_text_set(_elm_access_object_get(obj),
 427                         ELM_ACCESS_TYPE, E_("Check"));
 428    _elm_access_callback_set(_elm_access_object_get(obj),
 429                             ELM_ACCESS_INFO, _access_info_cb, obj);
 430    _elm_access_callback_set(_elm_access_object_get(obj),
 431                             ELM_ACCESS_STATE, _access_state_cb, obj);
 432    return obj;
 433 }
 434
 435 EAPI void
 436 elm_check_label_set(Evas_Object *obj, const char *label)
 437 {
 438    _elm_check_label_set(obj, NULL, label);
 439 }
 440
 441 EAPI const char *
 442 elm_check_label_get(const Evas_Object *obj)
 443 {
 444    return _elm_check_label_get(obj, NULL);
 445 }
 446
 447 EAPI void
 448 elm_check_states_labels_set(Evas_Object *obj, const char *ontext, const char *offtext)
 449 {
 450    _elm_check_label_set(obj, "on", ontext);
 451    _elm_check_label_set(obj, "off", offtext);
 452 }
 453
 454 EAPI void
 455 elm_check_states_labels_get(const Evas_Object *obj, const char **ontext, const char **offtext)
 456 {
 457    if (ontext) *ontext = _elm_check_label_get(obj, "on");
 458    if (offtext) *offtext = _elm_check_label_get(obj, "off");
 459 }
 460
 461 EAPI void
 462 elm_check_icon_set(Evas_Object *obj, Evas_Object *icon)
 463 {
 464    _content_set_hook(obj, NULL, icon);
 465 }
 466
 467 EAPI Evas_Object *
 468 elm_check_icon_get(const Evas_Object *obj)
 469 {
 470    return _content_get_hook(obj, NULL);
 471 }
 472
 473 EAPI Evas_Object *
 474 elm_check_icon_unset(Evas_Object *obj)
 475 {
 476    return _content_unset_hook(obj, NULL);
 477 }
 478
 479 EAPI void
 480 elm_check_state_set(Evas_Object *obj, Eina_Bool state)
 481 {
 482    ELM_CHECK_WIDTYPE(obj, widtype);
 483    Widget_Data *wd = elm_widget_data_get(obj);
 484    if (!wd) return;
 485    if (state != wd->state)
 486      {
 487         wd->state = state;
 488         if (wd->statep) *wd->statep = wd->state;
 489         if (wd->state)
 490           edje_object_signal_emit(wd->chk, "elm,state,check,on", "elm");
 491         else
 492           edje_object_signal_emit(wd->chk, "elm,state,check,off", "elm");
 493      }
 494    edje_object_message_signal_process(wd->chk);
 495 }
 496
 497 EAPI Eina_Bool
 498 elm_check_state_get(const Evas_Object *obj)
 499 {
 500    ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
 501    Widget_Data *wd = elm_widget_data_get(obj);
 502    if (!wd) return EINA_FALSE;
 503    return wd->state;
 504 }
 505
 506 EAPI void
 507 elm_check_state_pointer_set(Evas_Object *obj, Eina_Bool *statep)
 508 {
 509    ELM_CHECK_WIDTYPE(obj, widtype);
 510    Widget_Data *wd = elm_widget_data_get(obj);
 511    if (!wd) return;
 512    if (statep)
 513      {
 514         wd->statep = statep;
 515         if (*wd->statep != wd->state)
 516           {
 517              wd->state = *wd->statep;
 518              if (wd->state)
 519                edje_object_signal_emit(wd->chk, "elm,state,check,on", "elm");
 520              else
 521                edje_object_signal_emit(wd->chk, "elm,state,check,off", "elm");
 522           }
 523      }
 524    else
 525      wd->statep = NULL;
 526 }