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
  36 #include "widget_app.h"
  37 #include "widget-log.h"
  38 #include "widget-private.h"
  39 #include "widget_app_internal.h"
  40
  41 #ifdef LOG_TAG
  42 #undef LOG_TAG
  43 #endif
  44
  45 #define STR_MAX_BUF 128
  46 #define LOG_TAG "CAPI_WIDGET_APPLICATION"
  47 #define K_REASON    "__WC_K_REASON__"
  48
  49 typedef enum _widget_obj_state_e {
  50         WC_READY = 0,
  51         WC_RUNNING = 1,
  52         WC_PAUSED = 2,
  53         WC_TERMINATED = 3
  54 } widget_obj_state_e;
  55
  56 struct app_event_handler {
  57         app_event_type_e type;
  58         app_event_cb cb;
  59         void *data;
  60 };
  61
  62 struct app_event_info {
  63         app_event_type_e type;
  64         void *value;
  65 };
  66
  67 struct _widget_class {
  68         void *user_data;
  69         widget_instance_lifecycle_callback_s ops;
  70         char *classid;
  71         struct _widget_class *next;
  72         struct _widget_class *prev;
  73 };
  74
  75 struct _widget_context {
  76         char *id;
  77         struct _widget_class *provider;
  78         int state;
  79         void *tag;
  80         Evas_Object *win;
  81         bundle *content;
  82         widget_instance_lifecycle_callback_s ops;
  83 };
  84
  85 typedef struct _widget_class widget_class_s;
  86 typedef struct _widget_context widget_context_s;
  87
  88 static int caller_pid = 0;
  89 static widget_app_lifecycle_callback_s *app_ops;
  90 static void *app_user_data = NULL;
  91 static char *appid = NULL;
  92 static widget_class_h class_provider = NULL;
  93 static GList *contexts = NULL;
  94 static char *viewer_endpoint = NULL;
  95
  96 static gint __comp_by_id(gconstpointer a, gconstpointer b)
  97 {
  98         widget_context_s *wc = (widget_context_s*)a;
  99
 100         return strcmp(wc->id, (const char*)b);
 101 }
 102
 103 static widget_context_s* __find_context_by_id(const char *id)
 104 {
 105         GList* ret = g_list_find_custom(contexts, id, __comp_by_id);
 106
 107         if (ret == NULL)
 108                 return NULL;
 109
 110         return ret->data;
 111 }
 112
 113 static int __send_update_status(const char *class_id, const char *instance_id,
 114         int status, bundle *extra, int internal_only)
 115 {
 116         bundle *b = extra;
 117
 118         if (b == NULL)
 119                 b = bundle_create();
 120
 121         bundle_add_str(b, WIDGET_K_ID, class_id);
 122         bundle_add_str(b, WIDGET_K_INSTANCE, instance_id);
 123         bundle_add_byte(b, WIDGET_K_STATUS, &status, sizeof(int));
 124
 125         aul_app_com_send(viewer_endpoint, b);
 126
 127         if (extra == NULL)
 128                 bundle_free(b);
 129
 130         return 0;
 131 }
 132
 133 static int __instance_create(widget_class_h handle, const char *id, bundle *b)
 134 {
 135         widget_context_s *wc = NULL;
 136         int w = 0, h = 0;
 137         char *w_str = NULL, *h_str = NULL;
 138         char *remain = NULL;
 139         int ret = 0;
 140
 141         wc = (widget_context_s *)malloc(sizeof(widget_context_s));
 142         if (!wc)
 143                 return WIDGET_ERROR_OUT_OF_MEMORY;
 144
 145         wc->state = WC_READY;
 146         wc->id = g_strdup(id);
 147         wc->provider = handle;
 148         wc->win = NULL;
 149
 150         wc->content = bundle_dup(b);
 151         bundle_get_str(b, WIDGET_K_WIDTH, &w_str);
 152         bundle_get_str(b, WIDGET_K_HEIGHT, &h_str);
 153
 154         if (w_str) {
 155                 w = (int)g_ascii_strtoll(w_str, &remain, 10);
 156         }
 157
 158         if (h_str) {
 159                 h = (int)g_ascii_strtoll(h_str, &remain, 10);
 160         }
 161
 162         contexts = g_list_append(contexts, wc);
 163
 164         handle->ops.create(wc, b, w, h, handle->user_data);
 165
 166         ret = __send_update_status(handle->classid, wc->id, WIDGET_INSTANCE_EVENT_CREATE, b, 0);
 167
 168         return ret;
 169 }
 170
 171 static int __instance_destroy(widget_class_h handle, const char *id, widget_destroy_type_e reason, bundle *b)
 172 {
 173         widget_context_s *wc = __find_context_by_id(id);
 174         int ret = 0;
 175
 176         if (wc) {
 177                 wc->state = WC_TERMINATED;
 178                 handle->ops.destroy(wc, (widget_app_destroy_type_e)reason, b, handle->user_data);
 179
 180                 ret = __send_update_status(handle->classid, id, WIDGET_INSTANCE_EVENT_TERMINATE, b, 0);
 181
 182                 contexts = g_list_remove(contexts, wc);
 183
 184                 if (wc->id)
 185                         free(wc->id);
 186                 free(wc);
 187         } else {
 188                 _E("could not find widget obj: %s", id);
 189                 ret = WIDGET_ERROR_INVALID_PARAMETER;
 190         }
 191
 192         return ret;
 193 }
 194
 195 static widget_class_h __find_class_handler(const char *class_id, widget_class_h handle)
 196 {
 197         if (!class_id || !handle)
 198                 return NULL;
 199
 200         widget_class_h head = handle;
 201
 202         while (head) {
 203                 if (head->classid && strcmp(head->classid, class_id) == 0)
 204                         return head;
 205
 206                 head = head->next;
 207         }
 208
 209         return NULL;
 210 }
 211
 212 static void __control(bundle *b)
 213 {
 214         char *class_id = NULL;
 215         char *id = NULL;
 216         char *operation = NULL;
 217         char *reason = NULL;
 218         char *remain = NULL;
 219         int destroy_type = WIDGET_DESTROY_TYPE_DEFAULT;
 220
 221         widget_class_h handle = NULL;
 222         bundle_get_str(b, WIDGET_K_CLASS, &class_id);
 223         /* for previous version compatibility, use appid for default class id */
 224         if (class_id == NULL)
 225                 class_id = appid;
 226
 227         bundle_get_str(b, WIDGET_K_INSTANCE, &id);
 228         bundle_get_str(b, WIDGET_K_OPERATION, &operation);
 229
 230         handle = __find_class_handler(class_id, class_provider);
 231         if (!handle) {
 232                 _E("no handle provided: %s", class_id);
 233                 goto error;
 234         }
 235
 236         if (!operation) {
 237                 _E("no operation provided");
 238                 goto error;
 239         }
 240
 241         if (strcmp(operation, "create") == 0) {
 242                 __instance_create(handle, id, b);
 243         } else if (strcmp(operation, "resize") == 0) {
 244                 /* TODO */
 245         } else if (strcmp(operation, "update") == 0) {
 246                 /* TODO */
 247         } else if (strcmp(operation, "destroy") == 0) {
 248                 bundle_get_str(b, WIDGET_K_REASON, &reason);
 249                 if (reason)
 250                         destroy_type = (int)g_ascii_strtoll(reason, &remain, 10);
 251
 252                 __instance_destroy(handle, id, destroy_type, b);
 253         } else if (strcmp(operation, "resume") == 0) {
 254                 /* TODO */
 255         } else if (strcmp(operation, "pause") == 0) {
 256                 /* TODO */
 257         }
 258
 259         return;
 260 error:
 261         LOGD("error on control");
 262         return;
 263 }
 264
 265 static void __show_all()
 266 {
 267         LOGD("resume");
 268 }
 269
 270 static int __aul_handler(aul_type type, bundle *b, void *data)
 271 {
 272         char *caller = NULL;
 273         char *remain = NULL;
 274
 275         switch (type) {
 276         case AUL_START:
 277                 if (b) {
 278                         bundle_get_str(b, WIDGET_K_CALLER, &caller);
 279                         if (caller)
 280                                 caller_pid = g_ascii_strtoll(caller, &remain, 10);
 281                         else {
 282                                 /* using caller appid and query pid using caller appid? */
 283                                 _E("no caller pid");
 284                         }
 285                 }
 286
 287                 __control(b);
 288                 break;
 289         case AUL_RESUME:
 290                 __show_all();
 291                 break;
 292         case AUL_TERMINATE:
 293                 widget_app_exit();
 294                 break;
 295         default:
 296                 break;
 297         }
 298
 299         return 0;
 300 }
 301
 302
 303 static int __before_loop(int argc, char **argv)
 304 {
 305         int r;
 306         bundle *kb = NULL;
 307         char *wayland_display = NULL;
 308         char *xdg_runtime_dir = NULL;
 309
 310 #if !(GLIB_CHECK_VERSION(2, 36, 0))
 311         g_type_init();
 312 #endif
 313
 314         kb = bundle_import_from_argv(argc, argv);
 315         if (kb) {
 316                 bundle_get_str(kb, AUL_K_WAYLAND_WORKING_DIR, &xdg_runtime_dir);
 317                 bundle_get_str(kb, AUL_K_WAYLAND_DISPLAY, &wayland_display);
 318                 bundle_get_str(kb, WIDGET_K_ENDPOINT, &viewer_endpoint);
 319
 320                 if (xdg_runtime_dir)
 321                         setenv("XDG_RUNTIME_DIR", xdg_runtime_dir, 1);
 322
 323                 if (wayland_display)
 324                         setenv("WAYLAND_DISPLAY", wayland_display, 1);
 325
 326                 bundle_free(kb);
 327                 kb = NULL;
 328         } else {
 329                 _E("failed to get launch argv");
 330         }
 331
 332         elm_init(argc, argv);
 333
 334         r = aul_launch_init(__aul_handler, NULL);
 335         if (r < 0) {
 336                 return widget_app_error(WIDGET_ERROR_INVALID_PARAMETER, __FUNCTION__,
 337                                         "Fail to call the aul_launch_init");
 338         }
 339
 340         r = aul_launch_argv_handler(argc, argv);
 341         if (r < 0) {
 342                 return widget_app_error(WIDGET_ERROR_INVALID_PARAMETER, __FUNCTION__,
 343                                         "Fail to call the aul_launch_argv_handler");
 344         }
 345
 346         r = app_get_id(&appid);
 347         if (r != APP_ERROR_NONE)
 348                 return r;
 349
 350         class_provider = app_ops->create(app_user_data);
 351         if (class_provider == NULL) {
 352                 return widget_app_error(WIDGET_ERROR_INVALID_PARAMETER, __FUNCTION__,
 353                                         "widget_class is NULL");
 354         }
 355
 356         return WIDGET_ERROR_NONE;
 357 }
 358
 359 static void __after_loop()
 360 {
 361         if (app_ops->terminate)
 362                 app_ops->terminate(app_user_data);
 363
 364         elm_shutdown();
 365 }
 366
 367 EXPORT_API int widget_app_main(int argc, char **argv,
 368                                 widget_app_lifecycle_callback_s *callback, void *user_data)
 369 {
 370         int r;
 371
 372         if (argc <= 0 || argv == NULL || callback == NULL)
 373                 return widget_app_error(WIDGET_ERROR_INVALID_PARAMETER, __FUNCTION__, NULL);
 374
 375         if (callback->create == NULL)
 376                 return widget_app_error(WIDGET_ERROR_INVALID_PARAMETER, __FUNCTION__, "widget_app_create_cb() callback must be registered");
 377
 378         app_ops = callback;
 379         app_user_data = user_data;
 380         r = __before_loop(argc, argv);
 381         if (r < 0)
 382                 return r;
 383
 384         ecore_main_loop_begin();
 385         aul_status_update(STATUS_DYING);
 386         __after_loop();
 387
 388         return WIDGET_ERROR_NONE;
 389 }
 390
 391 EXPORT_API int widget_app_exit(void)
 392 {
 393         ecore_main_loop_quit();
 394
 395         return WIDGET_ERROR_NONE;
 396 }
 397
 398 static gboolean __finish_event_cb(gpointer user_data)
 399 {
 400         if (user_data == NULL)
 401                 return FALSE;
 402
 403         widget_context_s *wc = (widget_context_s *)user_data;
 404
 405         switch (wc->state) {
 406         case WC_READY:
 407
 408                 break;
 409         case WC_RUNNING:
 410
 411                 break;
 412         case WC_PAUSED:
 413
 414                 break;
 415         default:
 416                 break;
 417         }
 418
 419
 420         return FALSE;
 421 }
 422
 423 EXPORT_API int widget_app_terminate_context(widget_context_h context)
 424 {
 425         if (context == NULL)
 426                 return widget_app_error(WIDGET_ERROR_INVALID_PARAMETER, __FUNCTION__, NULL);
 427
 428         g_idle_add(__finish_event_cb, context);
 429         return WIDGET_ERROR_NONE;
 430 }
 431
 432 EXPORT_API int widget_app_foreach_context(widget_context_cb cb, void *data)
 433 {
 434         if (!cb)
 435                 return WIDGET_ERROR_INVALID_PARAMETER;
 436
 437         return WIDGET_ERROR_NONE;
 438 }
 439
 440 EXPORT_API int widget_app_add_event_handler(app_event_handler_h *event_handler,
 441                                         app_event_type_e event_type, app_event_cb callback,
 442                                         void *user_data)
 443 {
 444         /* TODO */
 445         if (!event_handler || !callback)
 446                 return WIDGET_ERROR_INVALID_PARAMETER;
 447
 448         switch (event_type) {
 449         case APP_EVENT_LOW_MEMORY:
 450         case APP_EVENT_LOW_BATTERY:
 451         case APP_EVENT_LANGUAGE_CHANGED:
 452         case APP_EVENT_DEVICE_ORIENTATION_CHANGED:
 453         case APP_EVENT_REGION_FORMAT_CHANGED:
 454         case APP_EVENT_SUSPENDED_STATE_CHANGED:
 455
 456                 break;
 457         default:
 458                 return WIDGET_ERROR_INVALID_PARAMETER;
 459         }
 460
 461         return WIDGET_ERROR_NONE;
 462 }
 463
 464 EXPORT_API int widget_app_remove_event_handler(app_event_handler_h
 465                                                 event_handler)
 466 {
 467         /* TODO */
 468         if (!event_handler)
 469                 return WIDGET_ERROR_INVALID_PARAMETER;
 470
 471         return WIDGET_ERROR_NONE;
 472 }
 473
 474 EXPORT_API const char* widget_app_get_id(widget_context_h context)
 475 {
 476         if (!context) {
 477                 set_last_result(WIDGET_ERROR_INVALID_PARAMETER);
 478                 return NULL;
 479         }
 480
 481         return context->id;
 482 }
 483
 484 EXPORT_API int widget_app_get_elm_win(widget_context_h context,
 485                                         Evas_Object **win)
 486 {
 487         if (context == NULL || win == NULL)
 488                 return widget_app_error(WIDGET_ERROR_INVALID_PARAMETER, __FUNCTION__, NULL);
 489
 490         widget_context_s *cxt = (widget_context_s*)context;
 491         Evas_Object *ret_win;
 492         Ecore_Wl_Window *wl_win;
 493
 494         ret_win = elm_win_add(NULL, cxt->id, ELM_WIN_BASIC);
 495         if (ret_win == NULL) {
 496                 _E("failed to create window");
 497                 return WIDGET_ERROR_FAULT;
 498         }
 499
 500         wl_win = elm_win_wl_window_get(ret_win);
 501         if (wl_win == NULL) {
 502                 _E("failed to get wayland window");
 503                 evas_object_del(ret_win);
 504                 return WIDGET_ERROR_FAULT;
 505         }
 506
 507         ecore_wl_window_class_name_set(wl_win, cxt->id);
 508
 509         *win = ret_win;
 510         cxt->win = ret_win;
 511
 512         return WIDGET_ERROR_NONE;
 513 }
 514
 515 widget_class_h _widget_class_create(widget_class_s *prev, const char *class_id,
 516                 widget_instance_lifecycle_callback_s callback, void *user_data)
 517 {
 518         widget_class_s *wc = (widget_class_s*)malloc(sizeof(widget_class_s));
 519
 520         if (wc == NULL) {
 521                 _E("failed to malloc : %s", __FUNCTION__);
 522                 set_last_result(WIDGET_ERROR_OUT_OF_MEMORY);
 523                 return NULL;
 524         }
 525
 526         wc->classid = strdup(class_id);
 527         wc->user_data = user_data;
 528         wc->ops = callback;
 529         wc->next = prev;
 530         wc->prev = NULL;
 531
 532         set_last_result(WIDGET_ERROR_NONE);
 533
 534         if (prev)
 535                 prev->prev = wc;
 536
 537         return wc;
 538 }
 539
 540 EXPORT_API widget_class_h widget_app_class_add(widget_class_h widget_class, const char *class_id,
 541                 widget_instance_lifecycle_callback_s callback, void *user_data)
 542 {
 543         if (class_id == NULL) {
 544                 set_last_result(WIDGET_ERROR_INVALID_PARAMETER);
 545                 return NULL;
 546         }
 547
 548         return _widget_class_create(widget_class, class_id, callback, user_data);
 549 }
 550
 551 EXPORT_API widget_class_h widget_app_class_create(widget_instance_lifecycle_callback_s callback, void *user_data)
 552 {
 553         return _widget_class_create(class_provider, appid, callback, user_data);
 554 }
 555
 556 EXPORT_API int widget_app_context_set_tag(widget_context_h context, void *tag)
 557 {
 558         if (context == NULL)
 559                 return widget_app_error(WIDGET_ERROR_INVALID_PARAMETER, __FUNCTION__, NULL);
 560
 561         context->tag = tag;
 562
 563         return WIDGET_ERROR_NONE;
 564 }
 565
 566 EXPORT_API int widget_app_context_get_tag(widget_context_h context, void **tag)
 567 {
 568         if (context == NULL || tag == NULL)
 569                 return widget_app_error(WIDGET_ERROR_INVALID_PARAMETER, __FUNCTION__, NULL);
 570
 571         *tag = context->tag;
 572
 573         return WIDGET_ERROR_NONE;
 574 }
 575
 576 EXPORT_API int widget_app_context_set_content_info(widget_context_h context, bundle *content_info)
 577 {
 578         const char *class_id = NULL;
 579         int ret = 0;
 580         if (context == NULL || content_info == NULL)
 581                 return widget_app_error(WIDGET_ERROR_INVALID_PARAMETER, __FUNCTION__, NULL);
 582
 583         if (context->provider == NULL)
 584                 return widget_app_error(WIDGET_ERROR_INVALID_PARAMETER, __FUNCTION__, NULL);
 585
 586         class_id = context->provider->classid;
 587
 588         if (class_id == NULL)
 589                 return widget_app_error(WIDGET_ERROR_FAULT, __FUNCTION__, NULL);
 590
 591         ret = __send_update_status(class_id, context->id, WIDGET_INSTANCE_EVENT_UPDATE, content_info, true);
 592
 593         if (ret < 0) {
 594                 _E("failed to send content info: %s of %s (%d)", context->id, class_id, ret);
 595                 return widget_app_error(WIDGET_ERROR_IO_ERROR, __FUNCTION__, NULL);
 596         }
 597
 598         return WIDGET_ERROR_NONE;
 599 }
 600
 601 EXPORT_API int widget_app_context_set_title(widget_context_h context, const char *title)
 602 {
 603         /* TODO
 604          call elm_win_title_set()
 605          */
 606
 607         if (!context || !title)
 608                 return WIDGET_ERROR_INVALID_PARAMETER;
 609
 610         return WIDGET_ERROR_NONE;
 611 }
 612