src/widget_app.c

   1 /*
   2  * Copyright (c) 2015 Samsung Electronics Co., Ltd All Rights Reserved
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the License);
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an AS IS BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17
  18 #include <stdlib.h>
  19
  20 #include <bundle.h>
  21 #include <bundle_internal.h>
  22 #include <aul.h>
  23 #include <dlog.h>
  24 #include <glib.h>
  25 #include <glib-object.h>
  26 #include <stdlib.h>
  27 #include <app_control.h>
  28 #include <app_control_internal.h>
  29 #include <Elementary.h>
  30 #include <widget_errno.h>
  31 #include <widget_instance.h>
  32 #include <widget_service_internal.h>
  33 #include <aul_app_com.h>
  34 #include <Ecore_Wayland.h>
  35 #include <system_info.h>
  36
  37 #include "widget_app.h"
  38 #include "widget-log.h"
  39 #include "widget-private.h"
  40 #include "widget_app_internal.h"
  41
  42 #ifdef LOG_TAG
  43 #undef LOG_TAG
  44 #endif
  45
  46 #define STR_MAX_BUF 128
  47 #define LOG_TAG "CAPI_WIDGET_APPLICATION"
  48 #define K_REASON    "__WC_K_REASON__"
  49
  50 typedef enum _widget_obj_state_e {
  51         WC_READY = 0,
  52         WC_RUNNING = 1,
  53         WC_PAUSED = 2,
  54         WC_TERMINATED = 3
  55 } widget_obj_state_e;
  56
  57 struct app_event_handler {
  58         app_event_type_e type;
  59         app_event_cb cb;
  60         void *data;
  61 };
  62
  63 struct app_event_info {
  64         app_event_type_e type;
  65         void *value;
  66 };
  67
  68 struct _widget_class {
  69         void *user_data;
  70         widget_instance_lifecycle_callback_s ops;
  71         char *classid;
  72         struct _widget_class *next;
  73         struct _widget_class *prev;
  74 };
  75
  76 struct _widget_context {
  77         char *id;
  78         struct _widget_class *provider;
  79         int state;
  80         void *tag;
  81         Evas_Object *win;
  82         bundle *content;
  83         widget_instance_lifecycle_callback_s ops;
  84 };
  85
  86 typedef struct _widget_class widget_class_s;
  87 typedef struct _widget_context widget_context_s;
  88
  89 static int caller_pid = 0;
  90 static widget_app_lifecycle_callback_s *app_ops;
  91 static void *app_user_data = NULL;
  92 static char *appid = NULL;
  93 static widget_class_h class_provider = NULL;
  94 static GList *contexts = NULL;
  95 static char *viewer_endpoint = NULL;
  96
  97 static inline bool _is_widget_feature_enabled(void)
  98 {
  99         static bool feature = false;
 100         static bool retrieved = false;
 101         int ret;
 102
 103         if (retrieved == true)
 104                 return feature;
 105
 106         ret = system_info_get_platform_bool(
 107                         "http://tizen.org/feature/shell.appwidget", &feature);
 108         if (ret != SYSTEM_INFO_ERROR_NONE) {
 109                 _E("failed to get system info");
 110                 return false;
 111         }
 112
 113         retrieved = true;
 114
 115         return feature;
 116 }
 117
 118 static gint __comp_by_id(gconstpointer a, gconstpointer b)
 119 {
 120         widget_context_s *wc = (widget_context_s*)a;
 121
 122         return strcmp(wc->id, (const char*)b);
 123 }
 124
 125 static widget_context_s* __find_context_by_id(const char *id)
 126 {
 127         GList* ret = g_list_find_custom(contexts, id, __comp_by_id);
 128
 129         if (ret == NULL)
 130                 return NULL;
 131
 132         return ret->data;
 133 }
 134
 135 static int __send_update_status(const char *class_id, const char *instance_id,
 136         int status, bundle *extra, int internal_only)
 137 {
 138         bundle *b = extra;
 139
 140         if (b == NULL)
 141                 b = bundle_create();
 142
 143         bundle_add_str(b, WIDGET_K_ID, class_id);
 144         bundle_add_str(b, WIDGET_K_INSTANCE, instance_id);
 145         bundle_add_byte(b, WIDGET_K_STATUS, &status, sizeof(int));
 146
 147         aul_app_com_send(viewer_endpoint, b);
 148
 149         if (extra == NULL)
 150                 bundle_free(b);
 151
 152         return 0;
 153 }
 154
 155 static int __instance_create(widget_class_h handle, const char *id, bundle *b)
 156 {
 157         widget_context_s *wc = NULL;
 158         int w = 0, h = 0;
 159         char *w_str = NULL, *h_str = NULL;
 160         char *remain = NULL;
 161         int ret = 0;
 162
 163         wc = (widget_context_s *)malloc(sizeof(widget_context_s));
 164         if (!wc)
 165                 return WIDGET_ERROR_OUT_OF_MEMORY;
 166
 167         wc->state = WC_READY;
 168         wc->id = g_strdup(id);
 169         wc->provider = handle;
 170         wc->win = NULL;
 171
 172         wc->content = bundle_dup(b);
 173         bundle_get_str(b, WIDGET_K_WIDTH, &w_str);
 174         bundle_get_str(b, WIDGET_K_HEIGHT, &h_str);
 175
 176         if (w_str) {
 177                 w = (int)g_ascii_strtoll(w_str, &remain, 10);
 178         }
 179
 180         if (h_str) {
 181                 h = (int)g_ascii_strtoll(h_str, &remain, 10);
 182         }
 183
 184         contexts = g_list_append(contexts, wc);
 185
 186         handle->ops.create(wc, b, w, h, handle->user_data);
 187
 188         ret = __send_update_status(handle->classid, wc->id, WIDGET_INSTANCE_EVENT_CREATE, b, 0);
 189
 190         return ret;
 191 }
 192
 193 static int __instance_destroy(widget_class_h handle, const char *id, widget_destroy_type_e reason, bundle *b)
 194 {
 195         widget_context_s *wc = __find_context_by_id(id);
 196         int ret = 0;
 197
 198         if (wc) {
 199                 wc->state = WC_TERMINATED;
 200                 handle->ops.destroy(wc, (widget_app_destroy_type_e)reason, b, handle->user_data);
 201
 202                 ret = __send_update_status(handle->classid, id, WIDGET_INSTANCE_EVENT_TERMINATE, b, 0);
 203
 204                 contexts = g_list_remove(contexts, wc);
 205
 206                 if (wc->id)
 207                         free(wc->id);
 208                 free(wc);
 209         } else {
 210                 _E("could not find widget obj: %s", id);
 211                 ret = WIDGET_ERROR_INVALID_PARAMETER;
 212         }
 213
 214         return ret;
 215 }
 216
 217 static widget_class_h __find_class_handler(const char *class_id, widget_class_h handle)
 218 {
 219         if (!class_id || !handle)
 220                 return NULL;
 221
 222         widget_class_h head = handle;
 223
 224         while (head) {
 225                 if (head->classid && strcmp(head->classid, class_id) == 0)
 226                         return head;
 227
 228                 head = head->next;
 229         }
 230
 231         return NULL;
 232 }
 233
 234 static void __control(bundle *b)
 235 {
 236         char *class_id = NULL;
 237         char *id = NULL;
 238         char *operation = NULL;
 239         char *reason = NULL;
 240         char *remain = NULL;
 241         int destroy_type = WIDGET_DESTROY_TYPE_DEFAULT;
 242
 243         widget_class_h handle = NULL;
 244         bundle_get_str(b, WIDGET_K_CLASS, &class_id);
 245         /* for previous version compatibility, use appid for default class id */
 246         if (class_id == NULL)
 247                 class_id = appid;
 248
 249         bundle_get_str(b, WIDGET_K_INSTANCE, &id);
 250         bundle_get_str(b, WIDGET_K_OPERATION, &operation);
 251
 252         handle = __find_class_handler(class_id, class_provider);
 253         if (!handle) {
 254                 _E("no handle provided: %s", class_id);
 255                 goto error;
 256         }
 257
 258         if (!operation) {
 259                 _E("no operation provided");
 260                 goto error;
 261         }
 262
 263         if (strcmp(operation, "create") == 0) {
 264                 __instance_create(handle, id, b);
 265         } else if (strcmp(operation, "resize") == 0) {
 266                 /* TODO */
 267         } else if (strcmp(operation, "update") == 0) {
 268                 /* TODO */
 269         } else if (strcmp(operation, "destroy") == 0) {
 270                 bundle_get_str(b, WIDGET_K_REASON, &reason);
 271                 if (reason)
 272                         destroy_type = (int)g_ascii_strtoll(reason, &remain, 10);
 273
 274                 __instance_destroy(handle, id, destroy_type, b);
 275         } else if (strcmp(operation, "resume") == 0) {
 276                 /* TODO */
 277         } else if (strcmp(operation, "pause") == 0) {
 278                 /* TODO */
 279         }
 280
 281         return;
 282 error:
 283         LOGD("error on control");
 284         return;
 285 }
 286
 287 static void __show_all()
 288 {
 289         LOGD("resume");
 290 }
 291
 292 static int __aul_handler(aul_type type, bundle *b, void *data)
 293 {
 294         char *caller = NULL;
 295         char *remain = NULL;
 296
 297         switch (type) {
 298         case AUL_START:
 299                 if (b) {
 300                         bundle_get_str(b, WIDGET_K_CALLER, &caller);
 301                         if (caller)
 302                                 caller_pid = g_ascii_strtoll(caller, &remain, 10);
 303                         else {
 304                                 /* using caller appid and query pid using caller appid? */
 305                                 _E("no caller pid");
 306                         }
 307                 }
 308
 309                 __control(b);
 310                 break;
 311         case AUL_RESUME:
 312                 __show_all();
 313                 break;
 314         case AUL_TERMINATE:
 315                 widget_app_exit();
 316                 break;
 317         default:
 318                 break;
 319         }
 320
 321         return 0;
 322 }
 323
 324
 325 static int __before_loop(int argc, char **argv)
 326 {
 327         int r;
 328         bundle *kb = NULL;
 329         char *wayland_display = NULL;
 330         char *xdg_runtime_dir = NULL;
 331
 332 #if !(GLIB_CHECK_VERSION(2, 36, 0))
 333         g_type_init();
 334 #endif
 335
 336         kb = bundle_import_from_argv(argc, argv);
 337         if (kb) {
 338                 bundle_get_str(kb, AUL_K_WAYLAND_WORKING_DIR, &xdg_runtime_dir);
 339                 bundle_get_str(kb, AUL_K_WAYLAND_DISPLAY, &wayland_display);
 340                 bundle_get_str(kb, WIDGET_K_ENDPOINT, &viewer_endpoint);
 341
 342                 if (xdg_runtime_dir)
 343                         setenv("XDG_RUNTIME_DIR", xdg_runtime_dir, 1);
 344
 345                 if (wayland_display)
 346                         setenv("WAYLAND_DISPLAY", wayland_display, 1);
 347
 348                 bundle_free(kb);
 349                 kb = NULL;
 350         } else {
 351                 _E("failed to get launch argv");
 352         }
 353
 354         elm_init(argc, argv);
 355
 356         r = aul_launch_init(__aul_handler, NULL);
 357         if (r < 0) {
 358                 return widget_app_error(WIDGET_ERROR_INVALID_PARAMETER, __FUNCTION__,
 359                                         "Fail to call the aul_launch_init");
 360         }
 361
 362         r = aul_launch_argv_handler(argc, argv);
 363         if (r < 0) {
 364                 return widget_app_error(WIDGET_ERROR_INVALID_PARAMETER, __FUNCTION__,
 365                                         "Fail to call the aul_launch_argv_handler");
 366         }
 367
 368         r = app_get_id(&appid);
 369         if (r != APP_ERROR_NONE)
 370                 return r;
 371
 372         class_provider = app_ops->create(app_user_data);
 373         if (class_provider == NULL) {
 374                 return widget_app_error(WIDGET_ERROR_INVALID_PARAMETER, __FUNCTION__,
 375                                         "widget_class is NULL");
 376         }
 377
 378         return WIDGET_ERROR_NONE;
 379 }
 380
 381 static void __after_loop()
 382 {
 383         if (app_ops->terminate)
 384                 app_ops->terminate(app_user_data);
 385
 386         elm_shutdown();
 387 }
 388
 389 EXPORT_API int widget_app_main(int argc, char **argv,
 390                                 widget_app_lifecycle_callback_s *callback, void *user_data)
 391 {
 392         int r;
 393
 394         if (!_is_widget_feature_enabled()) {
 395                 _E("not supported");
 396                 return WIDGET_ERROR_NOT_SUPPORTED;
 397         }
 398
 399         if (argc <= 0 || argv == NULL || callback == NULL)
 400                 return widget_app_error(WIDGET_ERROR_INVALID_PARAMETER, __FUNCTION__, NULL);
 401
 402         if (callback->create == NULL)
 403                 return widget_app_error(WIDGET_ERROR_INVALID_PARAMETER, __FUNCTION__, "widget_app_create_cb() callback must be registered");
 404
 405         app_ops = callback;
 406         app_user_data = user_data;
 407         r = __before_loop(argc, argv);
 408         if (r < 0)
 409                 return r;
 410
 411         ecore_main_loop_begin();
 412         aul_status_update(STATUS_DYING);
 413         __after_loop();
 414
 415         return WIDGET_ERROR_NONE;
 416 }
 417
 418 EXPORT_API int widget_app_exit(void)
 419 {
 420         if (!_is_widget_feature_enabled()) {
 421                 _E("not supported");
 422                 return WIDGET_ERROR_NOT_SUPPORTED;
 423         }
 424
 425         ecore_main_loop_quit();
 426
 427         return WIDGET_ERROR_NONE;
 428 }
 429
 430 static gboolean __finish_event_cb(gpointer user_data)
 431 {
 432         if (user_data == NULL)
 433                 return FALSE;
 434
 435         widget_context_s *wc = (widget_context_s *)user_data;
 436
 437         switch (wc->state) {
 438         case WC_READY:
 439
 440                 break;
 441         case WC_RUNNING:
 442
 443                 break;
 444         case WC_PAUSED:
 445
 446                 break;
 447         default:
 448                 break;
 449         }
 450
 451
 452         return FALSE;
 453 }
 454
 455 EXPORT_API int widget_app_terminate_context(widget_context_h context)
 456 {
 457         if (!_is_widget_feature_enabled()) {
 458                 _E("not supported");
 459                 return WIDGET_ERROR_NOT_SUPPORTED;
 460         }
 461
 462         if (context == NULL)
 463                 return widget_app_error(WIDGET_ERROR_INVALID_PARAMETER, __FUNCTION__, NULL);
 464
 465         g_idle_add(__finish_event_cb, context);
 466         return WIDGET_ERROR_NONE;
 467 }
 468
 469 EXPORT_API int widget_app_foreach_context(widget_context_cb cb, void *data)
 470 {
 471         if (!_is_widget_feature_enabled()) {
 472                 _E("not supported");
 473                 return WIDGET_ERROR_NOT_SUPPORTED;
 474         }
 475
 476         if (!cb)
 477                 return WIDGET_ERROR_INVALID_PARAMETER;
 478
 479         return WIDGET_ERROR_NONE;
 480 }
 481
 482 EXPORT_API int widget_app_add_event_handler(app_event_handler_h *event_handler,
 483                                         app_event_type_e event_type, app_event_cb callback,
 484                                         void *user_data)
 485 {
 486         if (!_is_widget_feature_enabled()) {
 487                 _E("not supported");
 488                 return WIDGET_ERROR_NOT_SUPPORTED;
 489         }
 490
 491         /* TODO */
 492         if (!event_handler || !callback)
 493                 return WIDGET_ERROR_INVALID_PARAMETER;
 494
 495         switch (event_type) {
 496         case APP_EVENT_LOW_MEMORY:
 497         case APP_EVENT_LOW_BATTERY:
 498         case APP_EVENT_LANGUAGE_CHANGED:
 499         case APP_EVENT_DEVICE_ORIENTATION_CHANGED:
 500         case APP_EVENT_REGION_FORMAT_CHANGED:
 501         case APP_EVENT_SUSPENDED_STATE_CHANGED:
 502
 503                 break;
 504         default:
 505                 return WIDGET_ERROR_INVALID_PARAMETER;
 506         }
 507
 508         return WIDGET_ERROR_NONE;
 509 }
 510
 511 EXPORT_API int widget_app_remove_event_handler(app_event_handler_h
 512                                                 event_handler)
 513 {
 514         if (!_is_widget_feature_enabled()) {
 515                 _E("not supported");
 516                 return WIDGET_ERROR_NOT_SUPPORTED;
 517         }
 518
 519         /* TODO */
 520         if (!event_handler)
 521                 return WIDGET_ERROR_INVALID_PARAMETER;
 522
 523         return WIDGET_ERROR_NONE;
 524 }
 525
 526 EXPORT_API const char* widget_app_get_id(widget_context_h context)
 527 {
 528         if (!_is_widget_feature_enabled()) {
 529                 _E("not supported");
 530                 set_last_result(WIDGET_ERROR_NOT_SUPPORTED);
 531                 return NULL;
 532         }
 533
 534         if (!context) {
 535                 set_last_result(WIDGET_ERROR_INVALID_PARAMETER);
 536                 return NULL;
 537         }
 538
 539         return context->id;
 540 }
 541
 542 EXPORT_API int widget_app_get_elm_win(widget_context_h context,
 543                                         Evas_Object **win)
 544 {
 545         widget_context_s *cxt = (widget_context_s*)context;
 546         Evas_Object *ret_win;
 547         Ecore_Wl_Window *wl_win;
 548
 549         if (!_is_widget_feature_enabled()) {
 550                 _E("not supported");
 551                 return WIDGET_ERROR_NOT_SUPPORTED;
 552         }
 553
 554         if (context == NULL || win == NULL)
 555                 return widget_app_error(WIDGET_ERROR_INVALID_PARAMETER, __FUNCTION__, NULL);
 556
 557         ret_win = elm_win_add(NULL, cxt->id, ELM_WIN_BASIC);
 558         if (ret_win == NULL) {
 559                 _E("failed to create window");
 560                 return WIDGET_ERROR_FAULT;
 561         }
 562
 563         wl_win = elm_win_wl_window_get(ret_win);
 564         if (wl_win == NULL) {
 565                 _E("failed to get wayland window");
 566                 evas_object_del(ret_win);
 567                 return WIDGET_ERROR_FAULT;
 568         }
 569
 570         ecore_wl_window_class_name_set(wl_win, cxt->id);
 571
 572         *win = ret_win;
 573         cxt->win = ret_win;
 574
 575         return WIDGET_ERROR_NONE;
 576 }
 577
 578 widget_class_h _widget_class_create(widget_class_s *prev, const char *class_id,
 579                 widget_instance_lifecycle_callback_s callback, void *user_data)
 580 {
 581         if (!_is_widget_feature_enabled()) {
 582                 _E("not supported");
 583                 set_last_result(WIDGET_ERROR_NOT_SUPPORTED);
 584                 return NULL;
 585         }
 586
 587         widget_class_s *wc = (widget_class_s*)malloc(sizeof(widget_class_s));
 588
 589         if (wc == NULL) {
 590                 _E("failed to malloc : %s", __FUNCTION__);
 591                 set_last_result(WIDGET_ERROR_OUT_OF_MEMORY);
 592                 return NULL;
 593         }
 594
 595         wc->classid = strdup(class_id);
 596         wc->user_data = user_data;
 597         wc->ops = callback;
 598         wc->next = prev;
 599         wc->prev = NULL;
 600
 601         set_last_result(WIDGET_ERROR_NONE);
 602
 603         if (prev)
 604                 prev->prev = wc;
 605
 606         return wc;
 607 }
 608
 609 EXPORT_API widget_class_h widget_app_class_add(widget_class_h widget_class, const char *class_id,
 610                 widget_instance_lifecycle_callback_s callback, void *user_data)
 611 {
 612         if (!_is_widget_feature_enabled()) {
 613                 _E("not supported");
 614                 set_last_result(WIDGET_ERROR_INVALID_PARAMETER);
 615                 return NULL;
 616         }
 617
 618         if (class_id == NULL) {
 619                 set_last_result(WIDGET_ERROR_INVALID_PARAMETER);
 620                 return NULL;
 621         }
 622
 623         return _widget_class_create(widget_class, class_id, callback, user_data);
 624 }
 625
 626 EXPORT_API widget_class_h widget_app_class_create(widget_instance_lifecycle_callback_s callback, void *user_data)
 627 {
 628         if (!_is_widget_feature_enabled()) {
 629                 set_last_result(WIDGET_ERROR_INVALID_PARAMETER);
 630                 return NULL;
 631         }
 632
 633         return _widget_class_create(class_provider, appid, callback, user_data);
 634 }
 635
 636 EXPORT_API int widget_app_context_set_tag(widget_context_h context, void *tag)
 637 {
 638         if (!_is_widget_feature_enabled()) {
 639                 _E("not supported");
 640                 return WIDGET_ERROR_NOT_SUPPORTED;
 641         }
 642
 643         if (context == NULL)
 644                 return widget_app_error(WIDGET_ERROR_INVALID_PARAMETER, __FUNCTION__, NULL);
 645
 646         context->tag = tag;
 647
 648         return WIDGET_ERROR_NONE;
 649 }
 650
 651 EXPORT_API int widget_app_context_get_tag(widget_context_h context, void **tag)
 652 {
 653         if (!_is_widget_feature_enabled()) {
 654                 _E("not supported");
 655                 return WIDGET_ERROR_NOT_SUPPORTED;
 656         }
 657
 658         if (context == NULL || tag == NULL)
 659                 return widget_app_error(WIDGET_ERROR_INVALID_PARAMETER, __FUNCTION__, NULL);
 660
 661         *tag = context->tag;
 662
 663         return WIDGET_ERROR_NONE;
 664 }
 665
 666 EXPORT_API int widget_app_context_set_content_info(widget_context_h context, bundle *content_info)
 667 {
 668         const char *class_id = NULL;
 669         int ret = 0;
 670
 671         if (!_is_widget_feature_enabled()) {
 672                 _E("not supported");
 673                 return WIDGET_ERROR_NOT_SUPPORTED;
 674         }
 675
 676         if (context == NULL || content_info == NULL)
 677                 return widget_app_error(WIDGET_ERROR_INVALID_PARAMETER, __FUNCTION__, NULL);
 678
 679         if (context->provider == NULL)
 680                 return widget_app_error(WIDGET_ERROR_INVALID_PARAMETER, __FUNCTION__, NULL);
 681
 682         class_id = context->provider->classid;
 683
 684         if (class_id == NULL)
 685                 return widget_app_error(WIDGET_ERROR_FAULT, __FUNCTION__, NULL);
 686
 687         ret = __send_update_status(class_id, context->id, WIDGET_INSTANCE_EVENT_UPDATE, content_info, true);
 688
 689         if (ret < 0) {
 690                 _E("failed to send content info: %s of %s (%d)", context->id, class_id, ret);
 691                 return widget_app_error(WIDGET_ERROR_IO_ERROR, __FUNCTION__, NULL);
 692         }
 693
 694         return WIDGET_ERROR_NONE;
 695 }
 696
 697 EXPORT_API int widget_app_context_set_title(widget_context_h context, const char *title)
 698 {
 699         if (!_is_widget_feature_enabled()) {
 700                 _E("not supported");
 701                 return WIDGET_ERROR_NOT_SUPPORTED;
 702         }
 703
 704         /* TODO
 705          call elm_win_title_set()
 706          */
 707
 708         if (!context || !title)
 709                 return WIDGET_ERROR_INVALID_PARAMETER;
 710
 711         return WIDGET_ERROR_NONE;
 712 }
 713