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 <aul.h>
  22 #include <dlog.h>
  23 #include <glib.h>
  24 #include <glib-object.h>
  25 #include <stdlib.h>
  26 #include <app_control.h>
  27 #include <app_control_internal.h>
  28 #include <Elementary.h>
  29 #include <widget_errno.h>
  30 #include <widget_instance.h>
  31 #include <widget_service_internal.h>
  32
  33 #include "widget_app.h"
  34 #include "widget-log.h"
  35 #include "widget-private.h"
  36 #include "widget_app_internal.h"
  37
  38 #ifdef LOG_TAG
  39 #undef LOG_TAG
  40 #endif
  41
  42 #define STR_MAX_BUF 128
  43 #define LOG_TAG "CAPI_WIDGET_APPLICATION"
  44 #define K_REASON    "__WC_K_REASON__"
  45
  46 typedef enum _widget_obj_state_e {
  47         WC_READY = 0,
  48         WC_RUNNING = 1,
  49         WC_PAUSED = 2,
  50         WC_TERMINATED = 3
  51 } widget_obj_state_e;
  52
  53 struct app_event_handler {
  54         app_event_type_e type;
  55         app_event_cb cb;
  56         void *data;
  57 };
  58
  59 struct app_event_info {
  60         app_event_type_e type;
  61         void *value;
  62 };
  63
  64 struct _widget_class {
  65         void *user_data;
  66         widget_instance_lifecycle_callback_s ops;
  67         char *classid;
  68         struct _widget_class *next;
  69         struct _widget_class *prev;
  70 };
  71
  72 struct _widget_context {
  73         char *id;
  74         struct _widget_class *provider;
  75         int state;
  76         void *tag;
  77         Evas_Object *win;
  78         bundle *content;
  79         widget_instance_lifecycle_callback_s ops;
  80 };
  81
  82 typedef struct _widget_class widget_class_s;
  83 typedef struct _widget_context widget_context_s;
  84
  85 static int caller_pid = 0;
  86 static widget_app_lifecycle_callback_s *app_ops;
  87 static void *app_user_data = NULL;
  88 static char *appid = NULL;
  89 static widget_class_h class_provider = NULL;
  90 static GList *contexts = NULL;
  91 static char *viewer_endpoint = NULL;
  92
  93 static gint __comp_by_id(gconstpointer a, gconstpointer b)
  94 {
  95         widget_context_s *wc = (widget_context_s*)a;
  96
  97         return strcmp(wc->id, (const char*)b);
  98 }
  99
 100 static widget_context_s* __find_context_by_id(const char *id)
 101 {
 102         GList* ret = g_list_find_custom(contexts, id, __comp_by_id);
 103
 104         if (ret == NULL)
 105                 return NULL;
 106
 107         return ret->data;
 108 }
 109
 110 static int __send_update_status(const char *class_id, const char *instance_id,
 111         int status, bundle *extra, int internal_only)
 112 {
 113         bundle *b = extra;
 114
 115         if (b == NULL)
 116                 b = bundle_create();
 117
 118         bundle_add_str(b, WIDGET_K_ID, class_id);
 119         bundle_add_str(b, WIDGET_K_INSTANCE, instance_id);
 120         bundle_add_byte(b, WIDGET_K_STATUS, &status, sizeof(int));
 121
 122         aul_app_com_send(viewer_endpoint, b);
 123
 124         if (extra == NULL)
 125                 bundle_free(b);
 126 }
 127
 128 static int __instance_create(widget_class_h handle, const char *id, bundle *b)
 129 {
 130         widget_context_s *wc = NULL;
 131         int w = 0, h = 0;
 132         char *w_str = NULL, *h_str = NULL;
 133         char *remain = NULL;
 134         int ret = 0;
 135
 136         wc = (widget_context_s *)malloc(sizeof(widget_context_s));
 137         if (!wc)
 138                 return WIDGET_ERROR_OUT_OF_MEMORY;
 139
 140         wc->state = WC_READY;
 141         wc->id = g_strdup(id);
 142         wc->provider = handle;
 143         wc->win = NULL;
 144
 145         wc->content = bundle_dup(b);
 146         bundle_get_str(b, WIDGET_K_WIDTH, &w_str);
 147         bundle_get_str(b, WIDGET_K_HEIGHT, &h_str);
 148
 149         if (w_str) {
 150                 w = (int)g_ascii_strtoll(w_str, &remain, 10);
 151         }
 152
 153         if (h_str) {
 154                 h = (int)g_ascii_strtoll(h_str, &remain, 10);
 155         }
 156
 157         contexts = g_list_append(contexts, wc);
 158
 159         handle->ops.create(wc, b, w, h, handle->user_data);
 160
 161         ret = __send_update_status(handle->classid, wc->id, WIDGET_INSTANCE_EVENT_CREATE, b, 0);
 162
 163         return ret;
 164 }
 165
 166 static int __instance_destroy(widget_class_h handle, const char *id, widget_destroy_type_e reason, bundle *b)
 167 {
 168         widget_context_s *wc = __find_context_by_id(id);
 169         int ret = 0;
 170
 171         if (wc) {
 172                 wc->state = WC_TERMINATED;
 173                 handle->ops.destroy(wc, (widget_app_destroy_type_e)reason, b, handle->user_data);
 174
 175                 ret = __send_update_status(handle->classid, id, WIDGET_INSTANCE_EVENT_TERMINATE, b, 0);
 176
 177                 contexts = g_list_remove(contexts, wc);
 178
 179                 if (wc->id)
 180                         free(wc->id);
 181                 free(wc);
 182         } else {
 183                 _E("could not find widget obj: %s", id);
 184                 ret = WIDGET_ERROR_INVALID_PARAMETER;
 185         }
 186
 187         return ret;
 188 }
 189
 190 static widget_class_h __find_class_handler(const char *class_id, widget_class_h handle)
 191 {
 192         if (!class_id || !handle)
 193                 return NULL;
 194
 195         widget_class_h head = handle;
 196
 197         while (head) {
 198                 if (head->classid && strcmp(head->classid, class_id) == 0)
 199                         return head;
 200
 201                 head = head->next;
 202         }
 203
 204         return NULL;
 205 }
 206
 207 static void __control(bundle *b)
 208 {
 209         char *class_id = NULL;
 210         char *id = NULL;
 211         char *operation = NULL;
 212         char *reason = NULL;
 213         char *remain = NULL;
 214         int destroy_type = WIDGET_DESTROY_TYPE_DEFAULT;
 215
 216         widget_class_h handle = NULL;
 217         bundle_get_str(b, WIDGET_K_CLASS, &class_id);
 218         /* for previous version compatibility, use appid for default class id */
 219         if (class_id == NULL)
 220                 class_id = appid;
 221
 222         bundle_get_str(b, WIDGET_K_INSTANCE, &id);
 223         bundle_get_str(b, WIDGET_K_OPERATION, &operation);
 224
 225         handle = __find_class_handler(class_id, class_provider);
 226         if (!handle) {
 227                 _E("no handle provided: %s", class_id);
 228                 goto error;
 229         }
 230
 231         if (!operation) {
 232                 _E("no operation provided");
 233                 goto error;
 234         }
 235
 236         if (strcmp(operation, "create") == 0) {
 237                 __instance_create(handle, id, b);
 238         } else if (strcmp(operation, "resize") == 0) {
 239                 /* TODO */
 240         } else if (strcmp(operation, "update") == 0) {
 241                 /* TODO */
 242         } else if (strcmp(operation, "destroy") == 0) {
 243                 bundle_get_str(b, WIDGET_K_REASON, &reason);
 244                 if (reason)
 245                         destroy_type = (int)g_ascii_strtoll(reason, &remain, 10);
 246
 247                 __instance_destroy(handle, id, destroy_type, b);
 248         } else if (strcmp(operation, "resume") == 0) {
 249                 /* TODO */
 250         } else if (strcmp(operation, "pause") == 0) {
 251                 /* TODO */
 252         }
 253
 254         return;
 255 error:
 256         LOGD("error on control");
 257         return;
 258 }
 259
 260 static void __show_all()
 261 {
 262         LOGD("resume");
 263 }
 264
 265 static int __aul_handler(aul_type type, bundle *b, void *data)
 266 {
 267         char *caller = NULL;
 268         char *remain = NULL;
 269
 270         switch (type) {
 271         case AUL_START:
 272                 if (b) {
 273                         bundle_get_str(b, WIDGET_K_CALLER, &caller);
 274                         if (caller)
 275                                 caller_pid = g_ascii_strtoll(caller, &remain, 10);
 276                         else {
 277                                 /* using caller appid and query pid using caller appid? */
 278                                 _E("no caller pid");
 279                         }
 280                 }
 281
 282                 __control(b);
 283                 break;
 284         case AUL_RESUME:
 285                 __show_all();
 286                 break;
 287         case AUL_TERMINATE:
 288                 widget_app_exit();
 289                 break;
 290         default:
 291                 break;
 292         }
 293
 294         return 0;
 295 }
 296
 297
 298 static int __before_loop(int argc, char **argv)
 299 {
 300         int r;
 301         bundle *kb = NULL;
 302         char *wayland_display = NULL;
 303         char *xdg_runtime_dir = NULL;
 304
 305 #if !(GLIB_CHECK_VERSION(2, 36, 0))
 306         g_type_init();
 307 #endif
 308
 309         kb = bundle_import_from_argv(argc, argv);
 310         if (kb) {
 311                 bundle_get_str(kb, AUL_K_WAYLAND_WORKING_DIR, &xdg_runtime_dir);
 312                 bundle_get_str(kb, AUL_K_WAYLAND_DISPLAY, &wayland_display);
 313                 bundle_get_str(kb, WIDGET_K_ENDPOINT, &viewer_endpoint);
 314
 315                 if (xdg_runtime_dir)
 316                         setenv("XDG_RUNTIME_DIR", xdg_runtime_dir, 1);
 317
 318                 if (wayland_display)
 319                         setenv("WAYLAND_DISPLAY", wayland_display, 1);
 320
 321                 bundle_free(kb);
 322                 kb = NULL;
 323         } else {
 324                 _E("failed to get launch argv");
 325         }
 326
 327         elm_init(argc, argv);
 328
 329         r = aul_launch_init(__aul_handler, NULL);
 330         if (r < 0) {
 331                 return widget_app_error(WIDGET_ERROR_INVALID_PARAMETER, __FUNCTION__,
 332                                         "Fail to call the aul_launch_init");
 333         }
 334
 335         r = aul_launch_argv_handler(argc, argv);
 336         if (r < 0) {
 337                 return widget_app_error(WIDGET_ERROR_INVALID_PARAMETER, __FUNCTION__,
 338                                         "Fail to call the aul_launch_argv_handler");
 339         }
 340
 341         r = app_get_id(&appid);
 342         if (r != APP_ERROR_NONE)
 343                 return r;
 344
 345         class_provider = app_ops->create(app_user_data);
 346         if (class_provider == NULL) {
 347                 return widget_app_error(WIDGET_ERROR_INVALID_PARAMETER, __FUNCTION__,
 348                                         "widget_class is NULL");
 349         }
 350
 351         return WIDGET_ERROR_NONE;
 352 }
 353
 354 static void __after_loop()
 355 {
 356         if (app_ops->terminate)
 357                 app_ops->terminate(app_user_data);
 358
 359         elm_shutdown();
 360 }
 361
 362 EXPORT_API int widget_app_main(int argc, char **argv,
 363                                 widget_app_lifecycle_callback_s *callback, void *user_data)
 364 {
 365         int r;
 366
 367         if (argc <= 0 || argv == NULL || callback == NULL)
 368                 return widget_app_error(WIDGET_ERROR_INVALID_PARAMETER, __FUNCTION__, NULL);
 369
 370         if (callback->create == NULL)
 371                 return widget_app_error(WIDGET_ERROR_INVALID_PARAMETER, __FUNCTION__, "widget_app_create_cb() callback must be registered");
 372
 373         app_ops = callback;
 374         app_user_data = user_data;
 375         r = __before_loop(argc, argv);
 376         if (r < 0)
 377                 return r;
 378
 379         ecore_main_loop_begin();
 380         aul_status_update(STATUS_DYING);
 381         __after_loop();
 382
 383         return WIDGET_ERROR_NONE;
 384 }
 385
 386 EXPORT_API int widget_app_exit(void)
 387 {
 388         ecore_main_loop_quit();
 389
 390         return WIDGET_ERROR_NONE;
 391 }
 392
 393 static gboolean __finish_event_cb(gpointer user_data)
 394 {
 395         if (user_data == NULL)
 396                 return FALSE;
 397
 398         widget_context_s *wc = (widget_context_s *)user_data;
 399
 400         switch (wc->state) {
 401         case WC_READY:
 402
 403                 break;
 404         case WC_RUNNING:
 405
 406                 break;
 407         case WC_PAUSED:
 408
 409                 break;
 410         default:
 411                 break;
 412         }
 413
 414
 415         return FALSE;
 416 }
 417
 418 EXPORT_API int widget_app_terminate_context(widget_context_h context)
 419 {
 420         if (context == NULL)
 421                 return widget_app_error(WIDGET_ERROR_INVALID_PARAMETER, __FUNCTION__, NULL);
 422
 423         g_idle_add(__finish_event_cb, context);
 424         return WIDGET_ERROR_NONE;
 425 }
 426
 427 EXPORT_API int widget_app_foreach_context(widget_context_cb cb, void *data)
 428 {
 429         return WIDGET_ERROR_NONE;
 430 }
 431
 432 EXPORT_API int widget_app_add_event_handler(app_event_handler_h *event_handler,
 433                                         app_event_type_e event_type, app_event_cb callback,
 434                                         void *user_data)
 435 {
 436         /* TODO */
 437         return 0;
 438 }
 439
 440 EXPORT_API int widget_app_remove_event_handler(app_event_handler_h
 441                                                 event_handler)
 442 {
 443         /* TODO */
 444         return 0;
 445 }
 446
 447 EXPORT_API const char* widget_app_get_id(widget_context_h context)
 448 {
 449         return context->id;
 450 }
 451
 452 EXPORT_API int widget_app_get_elm_win(widget_context_h context,
 453                                         Evas_Object **win)
 454 {
 455         if (context == NULL || win == NULL)
 456                 return widget_app_error(WIDGET_ERROR_INVALID_PARAMETER, __FUNCTION__, NULL);
 457
 458         widget_context_s *cxt = (widget_context_s*)context;
 459         Evas_Object *ret_win = NULL;
 460
 461         ret_win = elm_win_add(NULL, cxt->id, ELM_WIN_BASIC);
 462         if (ret_win == NULL) {
 463                 _E("failed to create window");
 464                 return WIDGET_ERROR_FAULT;
 465         }
 466         elm_win_title_set(ret_win, cxt->id);
 467
 468         *win = ret_win;
 469         cxt->win = ret_win;
 470
 471         return WIDGET_ERROR_NONE;
 472 }
 473
 474 widget_class_h _widget_class_create(widget_class_s *prev, const char *class_id,
 475                 widget_instance_lifecycle_callback_s callback, void *user_data)
 476 {
 477         widget_class_s *wc = (widget_class_s*)malloc(sizeof(widget_class_s));
 478
 479         if (wc == NULL) {
 480                 _E("failed to malloc : %s", __FUNCTION__);
 481                 set_last_result(WIDGET_ERROR_OUT_OF_MEMORY);
 482                 return NULL;
 483         }
 484
 485         wc->classid = strdup(class_id);
 486         wc->user_data = user_data;
 487         wc->ops = callback;
 488         wc->next = prev;
 489         wc->prev = NULL;
 490
 491         set_last_result(WIDGET_ERROR_NONE);
 492
 493         if (prev)
 494                 prev->prev = wc;
 495
 496         return wc;
 497 }
 498
 499 EXPORT_API widget_class_h widget_app_class_add(widget_class_h widget_class, const char *class_id,
 500                 widget_instance_lifecycle_callback_s callback, void *user_data)
 501 {
 502         if (class_id == NULL) {
 503                 set_last_result(WIDGET_ERROR_INVALID_PARAMETER);
 504                 return NULL;
 505         }
 506
 507         return _widget_class_create(widget_class, class_id, callback, user_data);
 508 }
 509
 510 EXPORT_API widget_class_h widget_app_class_create(widget_instance_lifecycle_callback_s callback, void *user_data)
 511 {
 512         return _widget_class_create(class_provider, appid, callback, user_data);
 513 }
 514
 515 EXPORT_API int widget_app_context_set_tag(widget_context_h context, void *tag)
 516 {
 517         if (context == NULL)
 518                 return widget_app_error(WIDGET_ERROR_INVALID_PARAMETER, __FUNCTION__, NULL);
 519
 520         context->tag = tag;
 521
 522         return WIDGET_ERROR_NONE;
 523 }
 524
 525 EXPORT_API int widget_app_context_get_tag(widget_context_h context, void **tag)
 526 {
 527         if (context == NULL || tag == NULL)
 528                 return widget_app_error(WIDGET_ERROR_INVALID_PARAMETER, __FUNCTION__, NULL);
 529
 530         *tag = context->tag;
 531
 532         return WIDGET_ERROR_NONE;
 533 }
 534
 535 EXPORT_API int widget_app_context_set_content_info(widget_context_h context, bundle *content_info)
 536 {
 537         const char *class_id = NULL;
 538         int ret = 0;
 539         if (context == NULL || content_info == NULL)
 540                 return widget_app_error(WIDGET_ERROR_INVALID_PARAMETER, __FUNCTION__, NULL);
 541
 542         if (context->provider == NULL)
 543                 return widget_app_error(WIDGET_ERROR_INVALID_PARAMETER, __FUNCTION__, NULL);
 544
 545         class_id = context->provider->classid;
 546
 547         if (class_id == NULL)
 548                 return widget_app_error(WIDGET_ERROR_FAULT, __FUNCTION__, NULL);
 549
 550         ret = __send_update_status(class_id, context->id, WIDGET_INSTANCE_EVENT_UPDATE, content_info, true);
 551
 552         if (ret < 0) {
 553                 _E("failed to send content info: %s of %s (%d)", context->id, class_id, ret);
 554                 return widget_app_error(WIDGET_ERROR_IO_ERROR, __FUNCTION__, NULL);
 555         }
 556
 557         return WIDGET_ERROR_NONE;
 558 }
 559
 560 EXPORT_API int widget_app_context_set_title(widget_context_h context, const char *title)
 561 {
 562         /* TODO
 563          may use widget status update, or use surface title set.
 564          */
 565         return 0;
 566 }
 567