src/examples/web_example.c

   1 /*
   2  * gcc -o web_example web_example.c `pkg-config --cflags --libs elementary ewebkit` -D_GNU_SOURCE
   3  */
   4 #include <Elementary.h>
   5 #ifdef HAVE_ELEMENTARY_WEB
   6 #include <EWebKit.h>
   7 #endif
   8 #ifdef HAVE_CONFIG_H
   9 # include "elementary_config.h"
  10 #else
  11 # define __UNUSED__ __attribute__((unused))
  12 #endif
  13
  14 typedef struct _Tab_Data Tab_Data;
  15
  16 typedef struct
  17 {
  18    Evas_Object *win;
  19    Evas_Object *main_box;
  20    Evas_Object *pager;
  21    Evas_Object *url;
  22    Evas_Object *default_web;
  23    Evas_Object *tabs;
  24    Evas_Object *close_tab;
  25    Evas_Object *search_box;
  26    Evas_Object *search_entry;
  27
  28    struct {
  29         Evas_Object *back;
  30         Evas_Object *fwd;
  31         Evas_Object *refresh;
  32    } nav;
  33
  34    Tab_Data *current_tab;
  35
  36    Eina_Bool exiting : 1;
  37 } App_Data;
  38
  39 struct _Tab_Data
  40 {
  41    Evas_Object *web;
  42    App_Data *app;
  43    Elm_Toolbar_Item *tab;
  44 };
  45
  46 static Evas_Object * _web_create_window_cb(void *data, Evas_Object *obj, Eina_Bool js, const Elm_Web_Window_Features *wf);
  47
  48 static void
  49 nav_button_update(App_Data *ad)
  50 {
  51    Eina_Bool back, fwd;
  52
  53    back = !elm_web_back_possible(ad->current_tab->web);
  54    fwd = !elm_web_forward_possible(ad->current_tab->web);
  55
  56    elm_object_disabled_set(ad->nav.back, back);
  57    elm_object_disabled_set(ad->nav.fwd, fwd);
  58 }
  59
  60 static void
  61 tab_current_set(Tab_Data *td)
  62 {
  63    const char *uri;
  64
  65    if (td == td->app->current_tab)
  66      return;
  67
  68    td->app->current_tab = td;
  69
  70    uri = elm_web_uri_get(td->web);
  71    elm_object_text_set(td->app->url, uri);
  72
  73    nav_button_update(td->app);
  74    elm_entry_icon_visible_set(td->app->url, EINA_TRUE);
  75
  76    elm_pager_content_promote(td->app->pager, td->web);
  77 }
  78
  79 static void
  80 _tab_clicked_cb(void *data, Evas_Object *obj __UNUSED__, void *event_info)
  81 {
  82    Tab_Data *td = data;
  83    /* the first toolbar_item_append() calls the select callback before the item
  84     * is assigned, so we need a workaround for that. */
  85    if (!td->tab)
  86      td->tab = event_info;
  87    tab_current_set(td);
  88 }
  89
  90 static void
  91 _title_changed_cb(void *data, Evas_Object *obj __UNUSED__, void *event_info)
  92 {
  93    Tab_Data *td = data;
  94    const char *title = event_info;
  95    char buf[20] = "";
  96
  97    if (title)
  98      strncpy(buf, title, sizeof(buf) - 1);
  99    elm_toolbar_item_label_set(td->tab, buf);
 100 }
 101
 102 static void
 103 _uri_changed_cb(void *data, Evas_Object *obj __UNUSED__, void *event_info)
 104 {
 105    Tab_Data *td = data;
 106    const char *uri = event_info;
 107
 108    if (td != td->app->current_tab)
 109      return;
 110
 111    nav_button_update(td->app);
 112    elm_object_text_set(td->app->url, uri);
 113 }
 114
 115 static void
 116 _web_free_cb(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 117 {
 118    Tab_Data *td = data;
 119
 120    if (td->tab)
 121      elm_toolbar_item_del(td->tab);
 122
 123    free(td);
 124 }
 125
 126 static void
 127 _tb_item_del_cb(void *data, Evas_Object *obj, void *event_info __UNUSED__)
 128 {
 129    Tab_Data *td = data;
 130    if (!td->app->exiting && !elm_toolbar_selected_item_get(obj))
 131      {
 132         td->app->current_tab = NULL;
 133         elm_entry_icon_visible_set(td->app->url, EINA_FALSE);
 134         if (td->app->search_box)
 135           evas_object_del(td->app->search_box);
 136      }
 137    td->tab = NULL;
 138 }
 139
 140 Tab_Data *
 141 tab_add(App_Data *ad)
 142 {
 143    Tab_Data *td;
 144
 145    td = calloc(1, sizeof(Tab_Data));
 146    if (!td) return NULL;
 147
 148    td->web = elm_web_add(ad->win);
 149    elm_web_window_create_hook_set(td->web, _web_create_window_cb, ad);
 150    elm_web_inwin_mode_set(td->web, EINA_TRUE);
 151    evas_object_size_hint_weight_set(td->web, EVAS_HINT_EXPAND,
 152                                     EVAS_HINT_EXPAND);
 153    evas_object_size_hint_align_set(td->web, EVAS_HINT_FILL, EVAS_HINT_FILL);
 154    elm_pager_content_push(ad->pager, td->web);
 155
 156    td->app = ad;
 157    td->tab = elm_toolbar_item_append(td->app->tabs, NULL, "New tab",
 158                                      _tab_clicked_cb, td);
 159    elm_toolbar_item_del_cb_set(td->tab, _tb_item_del_cb);
 160
 161    evas_object_data_set(td->web, "tab_data", td);
 162
 163    evas_object_smart_callback_add(td->web, "title,changed", _title_changed_cb,
 164                                   td);
 165    evas_object_smart_callback_add(td->web, "uri,changed", _uri_changed_cb, td);
 166    evas_object_event_callback_add(td->web, EVAS_CALLBACK_FREE, _web_free_cb,
 167                                   td);
 168
 169    elm_toolbar_item_selected_set(td->tab, EINA_TRUE);
 170    return td;
 171 }
 172
 173 static char *
 174 uri_sanitize(const char *uri)
 175 {
 176    char *fixed_uri;
 177    char *schema;
 178    char *tmp;
 179
 180    if (!uri || !*uri) return NULL;
 181
 182    tmp = strstr(uri, "://");
 183    if (!tmp || (tmp == uri) || (tmp > (uri + 15)))
 184      {
 185         char *new_uri = NULL;
 186         if (ecore_file_exists(uri))
 187           {
 188              schema = "file";
 189              new_uri = ecore_file_realpath(uri);
 190           }
 191         else
 192           schema = "http";
 193
 194         if (asprintf(&fixed_uri, "%s://%s", schema, new_uri ? new_uri : uri) >
 195             0)
 196           {
 197              free(new_uri);
 198              return fixed_uri;
 199           }
 200         free(new_uri);
 201      }
 202    else
 203      return strdup(uri);
 204
 205    return NULL;
 206 }
 207
 208 static void
 209 tab_uri_set(Tab_Data *td, const char *uri)
 210 {
 211    char *sane_uri = uri_sanitize(uri);
 212    elm_web_uri_set(td->web, sane_uri);
 213    free(sane_uri);
 214 }
 215
 216 static void
 217 _url_activated_cb(void *data, Evas_Object *obj, void *event_info __UNUSED__)
 218 {
 219    App_Data *ad = data;
 220    Tab_Data *td;
 221    const char *uri = eina_stringshare_ref(elm_object_text_get(obj));
 222
 223    if (!ad->current_tab)
 224      td = tab_add(ad);
 225    else
 226      td = ad->current_tab;
 227    tab_uri_set(td, uri);
 228    eina_stringshare_del(uri);
 229 }
 230
 231 static void
 232 _nav_back_cb(void *data, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 233 {
 234    App_Data *ad = data;
 235
 236    elm_web_back(ad->current_tab->web);
 237 }
 238
 239 static void
 240 _nav_refresh_cb(void *data, Evas_Object *obj, void *event_info __UNUSED__)
 241 {
 242    App_Data *ad = data;
 243    const Evas_Modifier *mods = evas_key_modifier_get(evas_object_evas_get(obj));
 244
 245    if (evas_key_modifier_is_set(mods, "Shift"))
 246      elm_web_reload_full(ad->current_tab->web);
 247    else
 248      elm_web_reload(ad->current_tab->web);
 249 }
 250
 251 static void
 252 _nav_fwd_cb(void *data, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 253 {
 254    App_Data *ad = data;
 255
 256    elm_web_forward(ad->current_tab->web);
 257 }
 258
 259 static void
 260 _close_tab_cb(void *data, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 261 {
 262    App_Data *ad = data;
 263
 264    if (!ad->current_tab)
 265      return;
 266    evas_object_del(ad->current_tab->web);
 267 }
 268
 269 static void
 270 _add_tab_cb(void *data, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 271 {
 272    App_Data *ad = data;
 273    tab_add(ad);
 274    elm_object_focus_set(ad->url, EINA_TRUE);
 275 }
 276
 277 static Evas_Object *
 278 _web_create_window_cb(void *data, Evas_Object *obj __UNUSED__, Eina_Bool js __UNUSED__, const Elm_Web_Window_Features *wf __UNUSED__)
 279 {
 280    App_Data *ad = data;
 281    Tab_Data *td;
 282
 283    td = tab_add(ad);
 284    return td->web;
 285 }
 286
 287 static void
 288 _win_del_request_cb(void *data, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 289 {
 290    App_Data *ad = data;
 291    ad->exiting = EINA_TRUE;
 292 }
 293
 294 static void
 295 _win_free_cb(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 296 {
 297    free(data);
 298 }
 299
 300 static void
 301 _search_entry_changed_cb(void *data, Evas_Object *obj, void *event_info __UNUSED__)
 302 {
 303    App_Data *ad = data;
 304    const char *text;
 305
 306    text = elm_object_text_get(obj);
 307    elm_web_text_search(ad->current_tab->web, text, EINA_FALSE, EINA_TRUE,
 308                        EINA_TRUE);
 309    elm_web_text_matches_unmark_all(ad->current_tab->web);
 310    elm_web_text_matches_mark(ad->current_tab->web, text, EINA_FALSE, EINA_TRUE,
 311                              0);
 312 }
 313
 314 static void
 315 _search_entry_activate_cb(void *data, Evas_Object *obj, void *event_info __UNUSED__)
 316 {
 317    App_Data *ad = data;
 318    const char *text;
 319
 320    text = elm_object_text_get(obj);
 321    elm_web_text_search(ad->current_tab->web, text, EINA_FALSE, EINA_TRUE,
 322                        EINA_TRUE);
 323 }
 324
 325 static void
 326 _search_next_cb(void *data, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 327 {
 328    App_Data *ad = data;
 329    const char *text;
 330
 331    text = elm_object_text_get(ad->search_entry);
 332    elm_web_text_search(ad->current_tab->web, text, EINA_FALSE, EINA_TRUE,
 333                        EINA_TRUE);
 334 }
 335
 336 static void
 337 _search_prev_cb(void *data, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 338 {
 339    App_Data *ad = data;
 340    const char *text;
 341
 342    text = elm_object_text_get(ad->search_entry);
 343    elm_web_text_search(ad->current_tab->web, text, EINA_FALSE, EINA_FALSE,
 344                        EINA_TRUE);
 345 }
 346
 347 static void
 348 _search_close_cb(void *data, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 349 {
 350    App_Data *ad = data;
 351    evas_object_del(ad->search_box);
 352 }
 353
 354 static void
 355 _search_box_del_cb(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 356 {
 357    App_Data *ad = data;
 358    ad->search_box = NULL;
 359    ad->search_entry = NULL;
 360 }
 361
 362 static void
 363 _win_search_trigger_cb(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info)
 364 {
 365    Evas_Event_Key_Down *ev = event_info;
 366    App_Data *ad = data;
 367    Evas_Object *box, *box2, *entry, *btn, *ic;
 368
 369    if (strcmp(ev->keyname, "f") ||
 370        !evas_key_modifier_is_set(ev->modifiers, "Control"))
 371      return;
 372    if (ad->search_box || !ad->current_tab)
 373      return;
 374
 375    box = elm_box_add(ad->win);
 376    elm_box_horizontal_set(box, EINA_TRUE);
 377    evas_object_size_hint_weight_set(box, EVAS_HINT_EXPAND, 0.0);
 378    evas_object_size_hint_align_set(box, EVAS_HINT_FILL, EVAS_HINT_FILL);
 379    elm_box_pack_after(ad->main_box, box, ad->url);
 380    evas_object_show(box);
 381
 382    evas_object_event_callback_add(box, EVAS_CALLBACK_DEL, _search_box_del_cb,
 383                                   ad);
 384
 385    entry = elm_entry_add(ad->win);
 386    elm_entry_single_line_set(entry, EINA_TRUE);
 387    elm_entry_scrollable_set(entry, EINA_TRUE);
 388    evas_object_size_hint_weight_set(entry, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
 389    evas_object_size_hint_align_set(entry, EVAS_HINT_FILL, EVAS_HINT_FILL);
 390    elm_box_pack_end(box, entry);
 391    evas_object_show(entry);
 392
 393    evas_object_smart_callback_add(entry, "changed", _search_entry_changed_cb,
 394                                   ad);
 395    evas_object_smart_callback_add(entry, "activated", _search_entry_activate_cb,
 396                                   ad);
 397
 398    box2 = elm_box_add(ad->win);
 399    elm_box_horizontal_set(box2, EINA_TRUE);
 400    elm_entry_end_set(entry, box2);
 401
 402    btn = elm_button_add(ad->win);
 403    elm_box_pack_end(box2, btn);
 404    evas_object_show(btn);
 405
 406    ic = elm_icon_add(ad->win);
 407    elm_icon_standard_set(ic, "arrow_up");
 408    elm_object_part_content_set(btn, "icon", ic);
 409
 410    evas_object_smart_callback_add(btn, "clicked", _search_prev_cb, ad);
 411
 412    btn = elm_button_add(ad->win);
 413    elm_box_pack_end(box2, btn);
 414    evas_object_show(btn);
 415
 416    ic = elm_icon_add(ad->win);
 417    elm_icon_standard_set(ic, "arrow_down");
 418    elm_object_part_content_set(btn, "icon", ic);
 419
 420    evas_object_smart_callback_add(btn, "clicked", _search_next_cb, ad);
 421
 422    btn = elm_button_add(ad->win);
 423    elm_box_pack_end(box, btn);
 424    evas_object_show(btn);
 425
 426    ic = elm_icon_add(ad->win);
 427    elm_icon_standard_set(ic, "close");
 428    elm_object_part_content_set(btn, "icon", ic);
 429
 430    evas_object_smart_callback_add(btn, "clicked", _search_close_cb, ad);
 431
 432    ad->search_box = box;
 433    ad->search_entry = entry;
 434
 435    elm_object_focus_set(entry, EINA_TRUE);
 436 }
 437
 438 static void
 439 default_content_set(Evas_Object *web)
 440 {
 441    Evas_Object *view, *frame;
 442    const char contents[] = ""
 443       "<html>\n"
 444       "  <head>\n"
 445       "    <title>Nothing to see here, move along</title>\n"
 446       "  </head>\n"
 447       "  <body>\n"
 448       "    <a href=\"http://www.enlightenment.org\" target=\"_blank\">E</a>\n"
 449       "    <br />\n"
 450       "    <a href=\"http://www.google.com\" target=\"_blank\">Google</a>\n"
 451       "    <br />\n"
 452       "  </body>\n"
 453       "</html>\n";
 454
 455 #ifdef HAVE_ELEMENTARY_WEB
 456    view = elm_web_webkit_view_get(web);
 457    frame = ewk_view_frame_main_get(view);
 458    ewk_frame_contents_set(frame, contents, sizeof(contents) - 1, "text/html",
 459                           "UTF-8", NULL);
 460 #endif
 461 }
 462
 463 int
 464 elm_main(int argc __UNUSED__, char *argv[] __UNUSED__)
 465 {
 466    Evas_Object *win, *bg, *box, *box2, *btn, *ic, *url, *pager, *tabs, *web;
 467    Evas *e;
 468    Evas_Modifier_Mask ctrl_mask;
 469    App_Data *ad;
 470
 471    if (!elm_need_web())
 472      return -1;
 473
 474    ad = calloc(1, sizeof(App_Data));
 475    if (!ad) return -1;
 476
 477    elm_policy_set(ELM_POLICY_QUIT, ELM_POLICY_QUIT_LAST_WINDOW_CLOSED);
 478
 479    win = elm_win_add(NULL, "example-web", ELM_WIN_BASIC);
 480    elm_win_autodel_set(win, EINA_TRUE);
 481
 482    e = evas_object_evas_get(win);
 483    ctrl_mask = evas_key_modifier_mask_get(e, "Control");
 484    if (!evas_object_key_grab(win, "f", ctrl_mask, 0, EINA_TRUE))
 485      fprintf(stderr, "Could not grab trigger for search dialog\n");
 486
 487    evas_object_smart_callback_add(win, "delete,request", _win_del_request_cb,
 488                                   ad);
 489    evas_object_event_callback_add(win, EVAS_CALLBACK_KEY_DOWN,
 490                                   _win_search_trigger_cb, ad);
 491    evas_object_event_callback_add(win, EVAS_CALLBACK_FREE, _win_free_cb, ad);
 492
 493    bg = elm_bg_add(win);
 494    evas_object_size_hint_weight_set(bg, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
 495    elm_win_resize_object_add(win, bg);
 496    evas_object_show(bg);
 497
 498    box = elm_box_add(win);
 499    evas_object_size_hint_weight_set(box, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
 500    elm_win_resize_object_add(win, box);
 501    evas_object_show(box);
 502
 503    url = elm_entry_add(win);
 504    elm_entry_single_line_set(url, EINA_TRUE);
 505    elm_entry_scrollable_set(url, EINA_TRUE);
 506    evas_object_size_hint_weight_set(url, EVAS_HINT_EXPAND, 0.0);
 507    evas_object_size_hint_align_set(url, EVAS_HINT_FILL, EVAS_HINT_FILL);
 508    elm_box_pack_end(box, url);
 509    evas_object_show(url);
 510
 511    evas_object_smart_callback_add(url, "activated", _url_activated_cb, ad);
 512
 513    box2 = elm_box_add(win);
 514    elm_box_horizontal_set(box2, EINA_TRUE);
 515    elm_entry_icon_set(url, box2);
 516    elm_entry_icon_visible_set(url, EINA_FALSE);
 517
 518    btn = elm_button_add(win);
 519    elm_box_pack_end(box2, btn);
 520    evas_object_show(btn);
 521
 522    ad->nav.back = btn;
 523
 524    ic = elm_icon_add(win);
 525    elm_icon_standard_set(ic, "arrow_left");
 526    elm_object_part_content_set(btn, "icon", ic);
 527
 528    evas_object_smart_callback_add(btn, "clicked", _nav_back_cb, ad);
 529
 530    btn = elm_button_add(win);
 531    elm_box_pack_end(box2, btn);
 532    evas_object_show(btn);
 533
 534    ad->nav.refresh = btn;
 535
 536    ic = elm_icon_add(win);
 537    elm_icon_standard_set(ic, "refresh");
 538    elm_object_part_content_set(btn, "icon", ic);
 539
 540    evas_object_smart_callback_add(btn, "clicked", _nav_refresh_cb, ad);
 541
 542    btn = elm_button_add(win);
 543    elm_box_pack_end(box2, btn);
 544    evas_object_show(btn);
 545
 546    ad->nav.fwd = btn;
 547
 548    ic = elm_icon_add(win);
 549    elm_icon_standard_set(ic, "arrow_right");
 550    elm_object_part_content_set(btn, "icon", ic);
 551
 552    evas_object_smart_callback_add(btn, "clicked", _nav_fwd_cb, ad);
 553
 554    box2 = elm_box_add(win);
 555    elm_box_horizontal_set(box2, EINA_TRUE);
 556    evas_object_size_hint_weight_set(box2, EVAS_HINT_EXPAND, 0.0);
 557    evas_object_size_hint_align_set(box2, EVAS_HINT_FILL, EVAS_HINT_FILL);
 558    elm_box_pack_end(box, box2);
 559    evas_object_show(box2);
 560
 561    btn = elm_button_add(win);
 562    elm_box_pack_end(box2, btn);
 563    evas_object_show(btn);
 564
 565    ic = elm_icon_add(win);
 566    elm_icon_standard_set(ic, "file");
 567    elm_object_part_content_set(btn, "icon", ic);
 568
 569    evas_object_smart_callback_add(btn, "clicked", _add_tab_cb, ad);
 570
 571    tabs = elm_toolbar_add(win);
 572    elm_toolbar_align_set(tabs, 0.0);
 573    elm_toolbar_always_select_mode_set(tabs, EINA_TRUE);
 574    elm_toolbar_homogeneous_set(tabs, EINA_FALSE);
 575    elm_toolbar_mode_shrink_set(tabs, ELM_TOOLBAR_SHRINK_MENU);
 576    evas_object_size_hint_weight_set(tabs, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
 577    evas_object_size_hint_align_set(tabs, EVAS_HINT_FILL, EVAS_HINT_FILL);
 578    elm_box_pack_end(box2, tabs);
 579    evas_object_show(tabs);
 580
 581    btn = elm_button_add(win);
 582    elm_box_pack_end(box2, btn);
 583    evas_object_show(btn);
 584
 585    evas_object_smart_callback_add(btn, "clicked", _close_tab_cb, ad);
 586
 587    ic = elm_icon_add(win);
 588    elm_icon_standard_set(ic, "close");
 589    elm_object_part_content_set(btn, "icon", ic);
 590
 591    pager = elm_pager_add(win);
 592    evas_object_size_hint_weight_set(pager, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
 593    evas_object_size_hint_align_set(pager, EVAS_HINT_FILL, EVAS_HINT_FILL);
 594    elm_box_pack_end(box, pager);
 595    evas_object_show(pager);
 596
 597    elm_toolbar_menu_parent_set(tabs, pager);
 598
 599    web = elm_web_add(win);
 600    elm_web_window_create_hook_set(web, _web_create_window_cb, ad);
 601    elm_web_history_enable_set(web, EINA_FALSE);
 602    evas_object_size_hint_weight_set(web, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
 603    evas_object_size_hint_align_set(web, EVAS_HINT_FILL, EVAS_HINT_FILL);
 604    elm_pager_content_push(pager, web);
 605
 606    default_content_set(web);
 607
 608    ad->win = win;
 609    ad->main_box = box;
 610    ad->pager = pager;
 611    ad->url = url;
 612    ad->default_web = web;
 613    ad->tabs = tabs;
 614    ad->close_tab = btn;
 615
 616    evas_object_resize(win, 480, 640);
 617    evas_object_show(win);
 618
 619    elm_run();
 620
 621    return 0;
 622 }
 623 ELM_MAIN();