src/lib/elm_button.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 *btn, *icon;
   9    const char *label;
  10    double ar_threshold;
  11    double ar_interval;
  12    Ecore_Timer *timer;
  13    Eina_Bool autorepeat : 1;
  14    Eina_Bool repeating : 1;
  15    Eina_Bool delete_me : 1;
  16 };
  17
  18 static const char *widtype = NULL;
  19 static void _del_hook(Evas_Object *obj);
  20 static void _del_pre_hook(Evas_Object *obj);
  21 static void _theme_hook(Evas_Object *obj);
  22 static void _disable_hook(Evas_Object *obj);
  23 static void _content_set_hook(Evas_Object *obj, const char *part, Evas_Object *content);
  24 static Evas_Object *_content_get_hook(const Evas_Object *obj, const char *part);
  25 static Evas_Object *_content_unset_hook(Evas_Object *obj, const char *part);
  26 static void _sizing_eval(Evas_Object *obj);
  27 static void _changed_size_hints(void *data, Evas *e, Evas_Object *obj, void *event_info);
  28 static void _sub_del(void *data, Evas_Object *obj, void *event_info);
  29 static void _signal_clicked(void *data, Evas_Object *obj, const char *emission, const char *source);
  30 static void _signal_pressed(void *data, Evas_Object *obj, const char *emission, const char *source);
  31 static void _signal_unpressed(void *data, Evas_Object *obj, const char *emission, const char *source);
  32 static void _on_focus_hook(void *data, Evas_Object *obj);
  33 static void _activate(Evas_Object *obj);
  34 static void _activate_hook(Evas_Object *obj);
  35 static Eina_Bool _event_hook(Evas_Object *obj, Evas_Object *src,
  36                              Evas_Callback_Type type, void *event_info);
  37
  38 static const char SIG_CLICKED[] = "clicked";
  39 static const char SIG_REPEATED[] = "repeated";
  40 static const char SIG_PRESSED[] = "pressed";
  41 static const char SIG_UNPRESSED[] = "unpressed";
  42 static const Evas_Smart_Cb_Description _signals[] = {
  43        {SIG_CLICKED, ""},
  44        {SIG_REPEATED, ""},
  45        {SIG_PRESSED, ""},
  46        {SIG_UNPRESSED, ""},
  47        {NULL, NULL}
  48 };
  49
  50 static Eina_Bool
  51 _event_hook(Evas_Object *obj, Evas_Object *src __UNUSED__, Evas_Callback_Type type, void *event_info)
  52 {
  53    if (type != EVAS_CALLBACK_KEY_DOWN) return EINA_FALSE;
  54    Evas_Event_Key_Down *ev = event_info;
  55    Widget_Data *wd = elm_widget_data_get(obj);
  56    if (!wd) return EINA_FALSE;
  57    if (ev->event_flags & EVAS_EVENT_FLAG_ON_HOLD) return EINA_FALSE;
  58    if (elm_widget_disabled_get(obj)) return EINA_FALSE;
  59    if ((strcmp(ev->keyname, "Return")) &&
  60        (strcmp(ev->keyname, "KP_Enter")) &&
  61        (strcmp(ev->keyname, "space")))
  62      return EINA_FALSE;
  63    _activate(obj);
  64    ev->event_flags |= EVAS_EVENT_FLAG_ON_HOLD;
  65    edje_object_signal_emit(wd->btn, "elm,anim,activate", "elm");
  66    return EINA_TRUE;
  67 }
  68
  69 static void
  70 _del_pre_hook(Evas_Object *obj)
  71 {
  72    Widget_Data *wd = elm_widget_data_get(obj);
  73    if (!wd) return;
  74    wd->delete_me = EINA_TRUE;
  75 }
  76
  77 static void
  78 _del_hook(Evas_Object *obj)
  79 {
  80    Widget_Data *wd = elm_widget_data_get(obj);
  81    if (!wd) return;
  82    if (wd->label) eina_stringshare_del(wd->label);
  83    free(wd);
  84 }
  85
  86 static void
  87 _on_focus_hook(void *data __UNUSED__, Evas_Object *obj)
  88 {
  89    Widget_Data *wd = elm_widget_data_get(obj);
  90    if (!wd) return;
  91    if (elm_widget_focus_get(obj))
  92      {
  93         edje_object_signal_emit(wd->btn, "elm,action,focus", "elm");
  94         evas_object_focus_set(wd->btn, EINA_TRUE);
  95      }
  96    else
  97      {
  98         edje_object_signal_emit(wd->btn, "elm,action,unfocus", "elm");
  99         evas_object_focus_set(wd->btn, EINA_FALSE);
 100      }
 101 }
 102
 103 static void
 104 _mirrored_set(Evas_Object *obj, Eina_Bool rtl)
 105 {
 106    Widget_Data *wd = elm_widget_data_get(obj);
 107    if (!wd) return;
 108    edje_object_mirrored_set(wd->btn, rtl);
 109 }
 110
 111 static void
 112 _theme_hook(Evas_Object *obj)
 113 {
 114    Widget_Data *wd = elm_widget_data_get(obj);
 115    const char *str;
 116    if (!wd) return;
 117    _elm_widget_mirrored_reload(obj);
 118    _mirrored_set(obj, elm_widget_mirrored_get(obj));
 119    _elm_theme_object_set(obj, wd->btn, "button", "base", elm_widget_style_get(obj));
 120    if (wd->icon)
 121      edje_object_part_swallow(wd->btn, "elm.swallow.content", wd->icon);
 122    if (wd->label)
 123      edje_object_signal_emit(wd->btn, "elm,state,text,visible", "elm");
 124    else
 125      edje_object_signal_emit(wd->btn, "elm,state,text,hidden", "elm");
 126    if (wd->icon)
 127      edje_object_signal_emit(wd->btn, "elm,state,icon,visible", "elm");
 128    else
 129      edje_object_signal_emit(wd->btn, "elm,state,icon,hidden", "elm");
 130    edje_object_part_text_set(wd->btn, "elm.text", wd->label);
 131    if (elm_object_disabled_get(obj))
 132      edje_object_signal_emit(wd->btn, "elm,state,disabled", "elm");
 133    edje_object_message_signal_process(wd->btn);
 134    edje_object_scale_set(wd->btn, elm_widget_scale_get(obj) * _elm_config->scale);
 135    str = edje_object_data_get(wd->btn, "focus_highlight");
 136    if ((str) && (!strcmp(str, "on")))
 137      elm_widget_highlight_in_theme_set(obj, EINA_TRUE);
 138    else
 139      elm_widget_highlight_in_theme_set(obj, EINA_FALSE);
 140    _sizing_eval(obj);
 141 }
 142
 143 static void
 144 _disable_hook(Evas_Object *obj)
 145 {
 146    Widget_Data *wd = elm_widget_data_get(obj);
 147    if (!wd) return;
 148    if (elm_widget_disabled_get(obj))
 149      edje_object_signal_emit(wd->btn, "elm,state,disabled", "elm");
 150    else
 151      edje_object_signal_emit(wd->btn, "elm,state,enabled", "elm");
 152 }
 153
 154 static void
 155 _signal_emit_hook(Evas_Object *obj, const char *emission, const char *source)
 156 {
 157    Widget_Data *wd = elm_widget_data_get(obj);
 158    if (!wd) return;
 159    edje_object_signal_emit(wd->btn, emission, source);
 160 }
 161
 162 static void
 163 _signal_callback_add_hook(Evas_Object *obj, const char *emission, const char *source, Edje_Signal_Cb func_cb, void *data)
 164 {
 165    Widget_Data *wd = elm_widget_data_get(obj);
 166    if (!wd) return;
 167    edje_object_signal_callback_add(wd->btn, emission, source, func_cb, data);
 168 }
 169
 170 static void
 171 _signal_callback_del_hook(Evas_Object *obj, const char *emission, const char *source, Edje_Signal_Cb func_cb, void *data)
 172 {
 173    Widget_Data *wd = elm_widget_data_get(obj);
 174    edje_object_signal_callback_del_full(wd->btn, emission, source, func_cb,
 175                                         data);
 176 }
 177
 178 static void
 179 _content_set_hook(Evas_Object *obj, const char *part, Evas_Object *content)
 180 {
 181    ELM_CHECK_WIDTYPE(obj, widtype);
 182    Widget_Data *wd = elm_widget_data_get(obj);
 183    if (!wd) return;
 184    if (part && strcmp(part, "icon")) return;
 185    if (wd->icon == content) return;
 186    if (wd->icon) evas_object_del(wd->icon);
 187    wd->icon = content;
 188    if (content)
 189      {
 190         elm_widget_sub_object_add(obj, content);
 191         evas_object_event_callback_add(content,
 192                                        EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 193                                        _changed_size_hints, obj);
 194         edje_object_part_swallow(wd->btn, "elm.swallow.content", content);
 195         edje_object_signal_emit(wd->btn, "elm,state,icon,visible", "elm");
 196         edje_object_message_signal_process(wd->btn);
 197      }
 198    _sizing_eval(obj);
 199 }
 200
 201 static Evas_Object *
 202 _content_get_hook(const Evas_Object *obj, const char *part)
 203 {
 204    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 205    Widget_Data *wd;
 206
 207    if (part && strcmp(part, "icon")) return NULL;
 208    wd = elm_widget_data_get(obj);
 209    if (!wd) return NULL;
 210    return wd->icon;
 211 }
 212
 213 static Evas_Object *
 214 _content_unset_hook(Evas_Object *obj, const char *part)
 215 {
 216    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 217    Widget_Data *wd;
 218
 219    if (part && strcmp(part, "icon")) return NULL;
 220    wd = elm_widget_data_get(obj);
 221    if (!wd) return NULL;
 222    if (!wd->icon) return NULL;
 223    Evas_Object *icon = wd->icon;
 224    elm_widget_sub_object_del(obj, wd->icon);
 225    evas_object_event_callback_del_full(wd->icon, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 226                                        _changed_size_hints, obj);
 227    edje_object_part_unswallow(wd->btn, wd->icon);
 228    wd->icon = NULL;
 229    return icon;
 230 }
 231
 232 static void
 233 _sizing_eval(Evas_Object *obj)
 234 {
 235    Widget_Data *wd = elm_widget_data_get(obj);
 236    Evas_Coord minw = -1, minh = -1;
 237
 238    if (!wd) return;
 239    if (wd->delete_me) return;
 240    elm_coords_finger_size_adjust(1, &minw, 1, &minh);
 241    edje_object_size_min_restricted_calc(wd->btn, &minw, &minh, minw, minh);
 242    elm_coords_finger_size_adjust(1, &minw, 1, &minh);
 243    evas_object_size_hint_min_set(obj, minw, minh);
 244 }
 245
 246 static void
 247 _changed_size_hints(void *data, Evas *e __UNUSED__, Evas_Object *obj, void *event_info __UNUSED__)
 248 {
 249    Widget_Data *wd = elm_widget_data_get(data);
 250    if (!wd) return;
 251    if (obj != wd->icon) return;
 252    _sizing_eval(data);
 253 }
 254
 255 static void
 256 _sub_del(void *data __UNUSED__, Evas_Object *obj, void *event_info)
 257 {
 258    Widget_Data *wd = elm_widget_data_get(obj);
 259    Evas_Object *sub = event_info;
 260    if (!wd) return;
 261    if (sub == wd->icon)
 262      {
 263         edje_object_signal_emit(wd->btn, "elm,state,icon,hidden", "elm");
 264         evas_object_event_callback_del_full(sub, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 265                                             _changed_size_hints, obj);
 266         wd->icon = NULL;
 267         edje_object_message_signal_process(wd->btn);
 268         _sizing_eval(obj);
 269      }
 270 }
 271
 272 static void
 273 _activate(Evas_Object *obj)
 274 {
 275    Widget_Data *wd = elm_widget_data_get(obj);
 276    if (!wd) return;
 277    if (wd->timer)
 278      {
 279         ecore_timer_del(wd->timer);
 280         wd->timer = NULL;
 281      }
 282    wd->repeating = EINA_FALSE;
 283    if ((_elm_config->access_mode == ELM_ACCESS_MODE_OFF) ||
 284        (_elm_access_2nd_click_timeout(obj)))
 285      {
 286         if (_elm_config->access_mode != ELM_ACCESS_MODE_OFF)
 287            _elm_access_say(E_("Clicked"));
 288         if (!elm_widget_disabled_get(obj) &&
 289             !evas_object_freeze_events_get(obj))
 290           evas_object_smart_callback_call(obj, SIG_CLICKED, NULL);
 291      }
 292 }
 293
 294 static void
 295 _activate_hook(Evas_Object *obj)
 296 {
 297    _activate(obj);
 298 }
 299
 300 static void
 301 _signal_clicked(void *data, Evas_Object *obj __UNUSED__, const char *emission __UNUSED__, const char *source __UNUSED__)
 302 {
 303    _activate(data);
 304 }
 305
 306 static Eina_Bool
 307 _autorepeat_send(void *data)
 308 {
 309    Widget_Data *wd = elm_widget_data_get(data);
 310    if (!wd) return ECORE_CALLBACK_CANCEL;
 311
 312    evas_object_smart_callback_call(data, SIG_REPEATED, NULL);
 313    if (!wd->repeating)
 314      {
 315         wd->timer = NULL;
 316         return ECORE_CALLBACK_CANCEL;
 317      }
 318
 319    return ECORE_CALLBACK_RENEW;
 320 }
 321
 322 static Eina_Bool
 323 _autorepeat_initial_send(void *data)
 324 {
 325    Widget_Data *wd = elm_widget_data_get(data);
 326    if (!wd) return ECORE_CALLBACK_CANCEL;
 327
 328    if (wd->timer) ecore_timer_del(wd->timer);
 329    wd->repeating = EINA_TRUE;
 330    _autorepeat_send(data);
 331    wd->timer = ecore_timer_add(wd->ar_interval, _autorepeat_send, data);
 332
 333    return ECORE_CALLBACK_CANCEL;
 334 }
 335
 336 static void
 337 _signal_pressed(void *data, Evas_Object *obj __UNUSED__, const char *emission __UNUSED__, const char *source __UNUSED__)
 338 {
 339    Widget_Data *wd = elm_widget_data_get(data);
 340    if (!wd) return;
 341
 342    if ((wd->autorepeat) && (!wd->repeating))
 343      {
 344         if (wd->ar_threshold <= 0.0)
 345           _autorepeat_initial_send(data); /* call immediately */
 346         else
 347           wd->timer = ecore_timer_add(wd->ar_threshold, _autorepeat_initial_send, data);
 348      }
 349
 350    evas_object_smart_callback_call(data, SIG_PRESSED, NULL);
 351 }
 352
 353 static void
 354 _signal_unpressed(void *data, Evas_Object *obj __UNUSED__, const char *emission __UNUSED__, const char *source __UNUSED__)
 355 {
 356    Widget_Data *wd = elm_widget_data_get(data);
 357    if (!wd) return;
 358
 359    if (wd->timer)
 360      {
 361         ecore_timer_del(wd->timer);
 362         wd->timer = NULL;
 363      }
 364    wd->repeating = EINA_FALSE;
 365    evas_object_smart_callback_call(data, SIG_UNPRESSED, NULL);
 366 }
 367
 368 static void
 369 _elm_button_label_set(Evas_Object *obj, const char *item, const char *label)
 370 {
 371    ELM_CHECK_WIDTYPE(obj, widtype);
 372    Widget_Data *wd = elm_widget_data_get(obj);
 373    if (item && strcmp(item, "default")) return;
 374    if (!wd) return;
 375    eina_stringshare_replace(&wd->label, label);
 376    if (label)
 377      edje_object_signal_emit(wd->btn, "elm,state,text,visible", "elm");
 378    else
 379      edje_object_signal_emit(wd->btn, "elm,state,text,hidden", "elm");
 380    edje_object_message_signal_process(wd->btn);
 381    edje_object_part_text_set(wd->btn, "elm.text", label);
 382    _sizing_eval(obj);
 383 }
 384
 385 static const char *
 386 _elm_button_label_get(const Evas_Object *obj, const char *item)
 387 {
 388    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 389    Widget_Data *wd = elm_widget_data_get(obj);
 390    if (item && strcmp(item, "default")) return NULL;
 391    if (!wd) return NULL;
 392    return wd->label;
 393 }
 394
 395 static char *
 396 _access_info_cb(void *data __UNUSED__, Evas_Object *obj, Elm_Widget_Item *item __UNUSED__)
 397 {
 398    const char *txt = elm_widget_access_info_get(obj);
 399    if (!txt) txt = _elm_button_label_get(obj, NULL);
 400    if (txt) return strdup(txt);
 401    return NULL;
 402 }
 403
 404 static char *
 405 _access_state_cb(void *data __UNUSED__, Evas_Object *obj, Elm_Widget_Item *item __UNUSED__)
 406 {
 407    if (elm_widget_disabled_get(obj))
 408      return strdup(E_("State: Disabled"));
 409    return NULL;
 410 }
 411
 412 EAPI Evas_Object *
 413 elm_button_add(Evas_Object *parent)
 414 {
 415    Evas_Object *obj;
 416    Evas *e;
 417    Widget_Data *wd;
 418
 419    ELM_WIDGET_STANDARD_SETUP(wd, Widget_Data, parent, e, obj, NULL);
 420
 421    ELM_SET_WIDTYPE(widtype, "button");
 422    elm_widget_type_set(obj, "button");
 423    elm_widget_sub_object_add(parent, obj);
 424    elm_widget_on_focus_hook_set(obj, _on_focus_hook, NULL);
 425    elm_widget_data_set(obj, wd);
 426    elm_widget_del_hook_set(obj, _del_hook);
 427    elm_widget_del_pre_hook_set(obj, _del_pre_hook);
 428    elm_widget_theme_hook_set(obj, _theme_hook);
 429    elm_widget_disable_hook_set(obj, _disable_hook);
 430    elm_widget_can_focus_set(obj, EINA_TRUE);
 431    elm_widget_activate_hook_set(obj, _activate_hook);
 432    elm_widget_event_hook_set(obj, _event_hook);
 433    elm_widget_signal_emit_hook_set(obj, _signal_emit_hook);
 434    elm_widget_signal_callback_add_hook_set(obj, _signal_callback_add_hook);
 435    elm_widget_signal_callback_del_hook_set(obj, _signal_callback_del_hook);
 436    elm_widget_text_set_hook_set(obj, _elm_button_label_set);
 437    elm_widget_text_get_hook_set(obj, _elm_button_label_get);
 438    elm_widget_content_set_hook_set(obj, _content_set_hook);
 439    elm_widget_content_get_hook_set(obj, _content_get_hook);
 440    elm_widget_content_unset_hook_set(obj, _content_unset_hook);
 441
 442    wd->btn = edje_object_add(e);
 443    _elm_theme_object_set(obj, wd->btn, "button", "base", "default");
 444    edje_object_signal_callback_add(wd->btn, "elm,action,click", "",
 445                                    _signal_clicked, obj);
 446    edje_object_signal_callback_add(wd->btn, "elm,action,press", "",
 447                                    _signal_pressed, obj);
 448    edje_object_signal_callback_add(wd->btn, "elm,action,unpress", "",
 449                                    _signal_unpressed, obj);
 450    elm_widget_resize_object_set(obj, wd->btn);
 451
 452    evas_object_smart_callback_add(obj, "sub-object-del", _sub_del, obj);
 453
 454    _theme_hook(obj);
 455
 456    // TODO: convert Elementary to subclassing of Evas_Smart_Class
 457    // TODO: and save some bytes, making descriptions per-class and not instance!
 458    evas_object_smart_callbacks_descriptions_set(obj, _signals);
 459
 460    _elm_access_object_register(obj, wd->btn);
 461    _elm_access_text_set(_elm_access_object_get(obj),
 462                         ELM_ACCESS_TYPE, E_("Button"));
 463    _elm_access_callback_set(_elm_access_object_get(obj),
 464                             ELM_ACCESS_INFO, _access_info_cb, obj);
 465    _elm_access_callback_set(_elm_access_object_get(obj),
 466                             ELM_ACCESS_STATE, _access_state_cb, obj);
 467    return obj;
 468 }
 469
 470 EAPI void
 471 <<<<<<< HEAD
 472 elm_button_label_set(Evas_Object *obj, const char *label)
 473 {
 474    _elm_button_label_set(obj, NULL, label);
 475 }
 476
 477 EAPI const char *
 478 elm_button_label_get(const Evas_Object *obj)
 479 {
 480    return _elm_button_label_get(obj, NULL);
 481 }
 482
 483
 484 EAPI void
 485 elm_button_icon_set(Evas_Object *obj, Evas_Object *icon)
 486 {
 487    _content_set_hook(obj, "icon", icon);
 488 }
 489
 490 EAPI Evas_Object *
 491 elm_button_icon_get(const Evas_Object *obj)
 492 {
 493    return _content_get_hook(obj, "icon");
 494 }
 495
 496 EAPI Evas_Object *
 497 elm_button_icon_unset(Evas_Object *obj)
 498 {
 499    return _content_unset_hook(obj, "icon");
 500 }
 501
 502 EAPI void
 503 =======
 504 >>>>>>> remotes/origin/upstream
 505 elm_button_autorepeat_set(Evas_Object *obj, Eina_Bool on)
 506 {
 507    ELM_CHECK_WIDTYPE(obj, widtype);
 508    Widget_Data *wd = elm_widget_data_get(obj);
 509    if (!wd) return;
 510    if (wd->timer)
 511      {
 512         ecore_timer_del(wd->timer);
 513         wd->timer = NULL;
 514      }
 515    wd->autorepeat = on;
 516    wd->repeating = EINA_FALSE;
 517 }
 518
 519 EAPI Eina_Bool
 520 elm_button_autorepeat_get(const Evas_Object *obj)
 521 {
 522    ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
 523    Widget_Data *wd = elm_widget_data_get(obj);
 524    if (!wd) return EINA_FALSE;
 525    return wd->autorepeat;
 526 }
 527
 528 EAPI void
 529 elm_button_autorepeat_initial_timeout_set(Evas_Object *obj, double t)
 530 {
 531    ELM_CHECK_WIDTYPE(obj, widtype);
 532    Widget_Data *wd = elm_widget_data_get(obj);
 533    if (!wd) return;
 534    if (wd->ar_threshold == t) return;
 535    if (wd->timer)
 536      {
 537         ecore_timer_del(wd->timer);
 538         wd->timer = NULL;
 539      }
 540    wd->ar_threshold = t;
 541 }
 542
 543 EAPI double
 544 elm_button_autorepeat_initial_timeout_get(const Evas_Object *obj)
 545 {
 546    ELM_CHECK_WIDTYPE(obj, widtype) 0.0;
 547    Widget_Data *wd = elm_widget_data_get(obj);
 548    if (!wd) return 0.0;
 549    return wd->ar_threshold;
 550 }
 551
 552 EAPI void
 553 elm_button_autorepeat_gap_timeout_set(Evas_Object *obj, double t)
 554 {
 555    ELM_CHECK_WIDTYPE(obj, widtype);
 556    Widget_Data *wd = elm_widget_data_get(obj);
 557    if (!wd) return;
 558    if (wd->ar_interval == t) return;
 559
 560    wd->ar_interval = t;
 561    if ((wd->repeating) && (wd->timer)) ecore_timer_interval_set(wd->timer, t);
 562 }
 563
 564 EAPI double
 565 elm_button_autorepeat_gap_timeout_get(const Evas_Object *obj)
 566 {
 567    ELM_CHECK_WIDTYPE(obj, widtype) 0.0;
 568    Widget_Data *wd = elm_widget_data_get(obj);
 569    if (!wd) return 0.0;
 570    return wd->ar_interval;
 571 }