dlls/mshtml/task.c

   1 /*
   2  * Copyright 2006 Jacek Caban for CodeWeavers
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  17  */
  18
  19 #include <stdarg.h>
  20 #include <stdio.h>
  21
  22 #define COBJMACROS
  23
  24 #include "windef.h"
  25 #include "winbase.h"
  26 #include "winuser.h"
  27 #include "ole2.h"
  28
  29 #include "wine/debug.h"
  30
  31 #include "mshtml_private.h"
  32
  33 WINE_DEFAULT_DEBUG_CHANNEL(mshtml);
  34
  35 #define WM_PROCESSTASK 0x8008
  36 #define TIMER_ID 0x3000
  37
  38 typedef struct {
  39     HTMLInnerWindow *window;
  40     DWORD id;
  41     DWORD time;
  42     DWORD interval;
  43     enum timer_type type;
  44     IDispatch *disp;
  45
  46     struct list entry;
  47 } task_timer_t;
  48
  49 HRESULT push_task(task_t *task, task_proc_t proc, task_proc_t destr, LONG magic)
  50 {
  51     thread_data_t *thread_data;
  52
  53     thread_data = get_thread_data(TRUE);
  54     if(!thread_data) {
  55         destr(task);
  56         free(task);
  57         return E_OUTOFMEMORY;
  58     }
  59
  60     task->target_magic = magic;
  61     task->proc = proc;
  62     task->destr = destr;
  63
  64     list_add_tail(&thread_data->task_list, &task->entry);
  65
  66     PostMessageW(thread_data->thread_hwnd, WM_PROCESSTASK, 0, 0);
  67     return S_OK;
  68 }
  69
  70 static void release_event_task(event_task_t *task)
  71 {
  72     task->destr(task);
  73     IHTMLWindow2_Release(&task->window->base.IHTMLWindow2_iface);
  74     free(task);
  75 }
  76
  77 HRESULT push_event_task(event_task_t *task, HTMLInnerWindow *window, event_task_proc_t proc, event_task_proc_t destr, LONG magic)
  78 {
  79     thread_data_t *thread_data;
  80
  81     task->target_magic = magic;
  82     task->proc = proc;
  83     task->destr = destr;
  84     task->window = window;
  85     IHTMLWindow2_AddRef(&window->base.IHTMLWindow2_iface);
  86
  87     thread_data = get_thread_data(TRUE);
  88     if(!thread_data) {
  89         release_event_task(task);
  90         return E_OUTOFMEMORY;
  91     }
  92
  93     list_add_tail(&thread_data->event_task_list, &task->entry);
  94
  95     PostMessageW(thread_data->thread_hwnd, WM_PROCESSTASK, 0, 0);
  96     return S_OK;
  97 }
  98
  99 static void release_task_timer(HWND thread_hwnd, task_timer_t *timer)
 100 {
 101     list_remove(&timer->entry);
 102
 103     IDispatch_Release(timer->disp);
 104
 105     free(timer);
 106 }
 107
 108 void remove_target_tasks(LONG target)
 109 {
 110     thread_data_t *thread_data = get_thread_data(FALSE);
 111     struct list *liter, *ltmp;
 112     task_timer_t *timer;
 113     task_t *task;
 114
 115     if(!thread_data)
 116         return;
 117
 118     LIST_FOR_EACH_SAFE(liter, ltmp, &thread_data->timer_list) {
 119         timer = LIST_ENTRY(liter, task_timer_t, entry);
 120         if(timer->window->task_magic == target)
 121             release_task_timer(thread_data->thread_hwnd, timer);
 122     }
 123
 124     if(!list_empty(&thread_data->timer_list)) {
 125         DWORD tc = GetTickCount();
 126
 127         timer = LIST_ENTRY(list_head(&thread_data->timer_list), task_timer_t, entry);
 128         SetTimer(thread_data->thread_hwnd, TIMER_ID, max( (int)(timer->time - tc), 0 ), NULL);
 129     }
 130
 131     LIST_FOR_EACH_SAFE(liter, ltmp, &thread_data->task_list) {
 132         task = LIST_ENTRY(liter, task_t, entry);
 133         if(task->target_magic == target) {
 134             list_remove(&task->entry);
 135             task->destr(task);
 136             free(task);
 137         }
 138     }
 139
 140     LIST_FOR_EACH_SAFE(liter, ltmp, &thread_data->event_task_list) {
 141         event_task_t *task = LIST_ENTRY(liter, event_task_t, entry);
 142         if(task->target_magic == target) {
 143             list_remove(&task->entry);
 144             release_event_task(task);
 145         }
 146     }
 147 }
 148
 149 LONG get_task_target_magic(void)
 150 {
 151     static LONG magic = 0x10000000;
 152     return InterlockedIncrement(&magic);
 153 }
 154
 155 static BOOL queue_timer(thread_data_t *thread_data, task_timer_t *timer)
 156 {
 157     task_timer_t *iter;
 158
 159     list_remove(&timer->entry);
 160
 161     if(list_empty(&thread_data->timer_list)
 162        || LIST_ENTRY(list_head(&thread_data->timer_list), task_timer_t, entry)->time > timer->time) {
 163
 164         list_add_head(&thread_data->timer_list, &timer->entry);
 165         return TRUE;
 166     }
 167
 168     LIST_FOR_EACH_ENTRY(iter, &thread_data->timer_list, task_timer_t, entry) {
 169         if(iter->time > timer->time) {
 170             list_add_tail(&iter->entry, &timer->entry);
 171             return FALSE;
 172         }
 173     }
 174
 175     list_add_tail(&thread_data->timer_list, &timer->entry);
 176     return FALSE;
 177 }
 178
 179 HRESULT set_task_timer(HTMLInnerWindow *window, LONG msec, enum timer_type timer_type, IDispatch *disp, LONG *id)
 180 {
 181     thread_data_t *thread_data;
 182     task_timer_t *timer;
 183     DWORD tc = GetTickCount();
 184
 185     static DWORD id_cnt = 0x20000000;
 186
 187     thread_data = get_thread_data(TRUE);
 188     if(!thread_data)
 189         return E_OUTOFMEMORY;
 190
 191     timer = malloc(sizeof(task_timer_t));
 192     if(!timer)
 193         return E_OUTOFMEMORY;
 194
 195     if(msec < 1)
 196         msec = 1;
 197
 198     timer->id = id_cnt++;
 199     timer->window = window;
 200     timer->time = tc + msec;
 201     timer->interval = timer_type == TIMER_INTERVAL ? msec : 0;
 202     timer->type = timer_type;
 203     list_init(&timer->entry);
 204
 205     IDispatch_AddRef(disp);
 206     timer->disp = disp;
 207
 208     if(queue_timer(thread_data, timer))
 209         SetTimer(thread_data->thread_hwnd, TIMER_ID, msec, NULL);
 210
 211     *id = timer->id;
 212     return S_OK;
 213 }
 214
 215 HRESULT clear_task_timer(HTMLInnerWindow *window, DWORD id)
 216 {
 217     thread_data_t *thread_data = get_thread_data(FALSE);
 218     task_timer_t *iter;
 219
 220     if(!thread_data)
 221         return S_OK;
 222
 223     LIST_FOR_EACH_ENTRY(iter, &thread_data->timer_list, task_timer_t, entry) {
 224         if(iter->id == id && iter->window == window) {
 225             if(iter->type != TIMER_ANIMATION_FRAME)
 226                 release_task_timer(thread_data->thread_hwnd, iter);
 227             return S_OK;
 228         }
 229     }
 230
 231     WARN("timet not found\n");
 232     return S_OK;
 233 }
 234
 235 HRESULT clear_animation_timer(HTMLInnerWindow *window, DWORD id)
 236 {
 237     thread_data_t *thread_data = get_thread_data(FALSE);
 238     task_timer_t *iter;
 239
 240     if(!thread_data)
 241         return S_OK;
 242
 243     LIST_FOR_EACH_ENTRY(iter, &thread_data->timer_list, task_timer_t, entry) {
 244         if(iter->id == id && iter->window == window) {
 245             if(iter->type == TIMER_ANIMATION_FRAME)
 246                 release_task_timer(thread_data->thread_hwnd, iter);
 247             return S_OK;
 248         }
 249     }
 250
 251     WARN("timer not found\n");
 252     return S_OK;
 253 }
 254
 255 static const char *debugstr_timer_type(enum timer_type type)
 256 {
 257     switch(type) {
 258     case TIMER_TIMEOUT:  return "timeout";
 259     case TIMER_INTERVAL: return "interval";
 260     case TIMER_ANIMATION_FRAME: return "animation-frame";
 261     DEFAULT_UNREACHABLE;
 262     }
 263 }
 264
 265 static void call_timer_disp(IDispatch *disp, enum timer_type timer_type)
 266 {
 267     DISPPARAMS dp = {NULL, NULL, 0, 0};
 268     VARIANT timestamp;
 269     EXCEPINFO ei;
 270     VARIANT res;
 271     HRESULT hres;
 272
 273     V_VT(&res) = VT_EMPTY;
 274     memset(&ei, 0, sizeof(ei));
 275
 276     if(timer_type == TIMER_ANIMATION_FRAME) {
 277         dp.cArgs = 1;
 278         dp.rgvarg = &timestamp;
 279         V_VT(&timestamp) = VT_R8;
 280         V_R8(&timestamp) = get_time_stamp();
 281     }
 282
 283     TRACE("%p %s >>>\n", disp, debugstr_timer_type(timer_type));
 284     hres = IDispatch_Invoke(disp, DISPID_VALUE, &IID_NULL, 0, DISPATCH_METHOD, &dp, &res, &ei, NULL);
 285     if(hres == S_OK)
 286         TRACE("%p %s <<<\n", disp, debugstr_timer_type(timer_type));
 287     else
 288         WARN("%p %s <<< %08lx\n", disp, debugstr_timer_type(timer_type), hres);
 289
 290     VariantClear(&res);
 291 }
 292
 293 static LRESULT process_timer(void)
 294 {
 295     thread_data_t *thread_data;
 296     enum timer_type timer_type;
 297     IDispatch *disp;
 298     DWORD tc;
 299     task_timer_t *timer=NULL, *last_timer;
 300
 301     TRACE("\n");
 302
 303     thread_data = get_thread_data(FALSE);
 304     assert(thread_data != NULL);
 305
 306     if(list_empty(&thread_data->timer_list)) {
 307         KillTimer(thread_data->thread_hwnd, TIMER_ID);
 308         return 0;
 309     }
 310
 311     last_timer = LIST_ENTRY(list_tail(&thread_data->timer_list), task_timer_t, entry);
 312     do {
 313         tc = GetTickCount();
 314         if(timer == last_timer) {
 315             timer = LIST_ENTRY(list_head(&thread_data->timer_list), task_timer_t, entry);
 316             SetTimer(thread_data->thread_hwnd, TIMER_ID, timer->time>tc ? timer->time-tc : 0, NULL);
 317             return 0;
 318         }
 319
 320         timer = LIST_ENTRY(list_head(&thread_data->timer_list), task_timer_t, entry);
 321
 322         if(timer->time > tc) {
 323             SetTimer(thread_data->thread_hwnd, TIMER_ID, timer->time-tc, NULL);
 324             return 0;
 325         }
 326
 327         disp = timer->disp;
 328         IDispatch_AddRef(disp);
 329         timer_type = timer->type;
 330
 331         if(timer->interval) {
 332             timer->time += timer->interval;
 333             queue_timer(thread_data, timer);
 334         }else {
 335             release_task_timer(thread_data->thread_hwnd, timer);
 336         }
 337
 338         call_timer_disp(disp, timer_type);
 339
 340         IDispatch_Release(disp);
 341     }while(!list_empty(&thread_data->timer_list));
 342
 343     KillTimer(thread_data->thread_hwnd, TIMER_ID);
 344     return 0;
 345 }
 346
 347 static LRESULT WINAPI hidden_proc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
 348 {
 349     thread_data_t *thread_data;
 350
 351     switch(msg) {
 352     case WM_PROCESSTASK:
 353         thread_data = get_thread_data(FALSE);
 354         if(!thread_data)
 355             return 0;
 356
 357         while(1) {
 358             struct list *head = list_head(&thread_data->task_list);
 359
 360             if(head) {
 361                 task_t *task = LIST_ENTRY(head, task_t, entry);
 362                 list_remove(&task->entry);
 363                 task->proc(task);
 364                 task->destr(task);
 365                 free(task);
 366                 continue;
 367             }
 368
 369             head = list_head(&thread_data->event_task_list);
 370             if(head) {
 371                 event_task_t *task = LIST_ENTRY(head, event_task_t, entry);
 372                 list_remove(&task->entry);
 373                 task->proc(task);
 374                 release_event_task(task);
 375                 continue;
 376             }
 377
 378             break;
 379         }
 380         return 0;
 381     case WM_TIMER:
 382         return process_timer();
 383     }
 384
 385     if(msg > WM_USER)
 386         FIXME("(%p %d %Ix %Ix)\n", hwnd, msg, wParam, lParam);
 387
 388     return DefWindowProcW(hwnd, msg, wParam, lParam);
 389 }
 390
 391 static HWND create_thread_hwnd(void)
 392 {
 393     static ATOM hidden_wnd_class = 0;
 394
 395     if(!hidden_wnd_class) {
 396         WNDCLASSEXW wndclass = {
 397             sizeof(WNDCLASSEXW), 0,
 398             hidden_proc,
 399             0, 0, hInst, NULL, NULL, NULL, NULL,
 400             L"Internet Explorer_Hidden",
 401             NULL
 402         };
 403
 404         hidden_wnd_class = RegisterClassExW(&wndclass);
 405     }
 406
 407     return CreateWindowExW(0, L"Internet Explorer_Hidden", NULL, WS_POPUP,
 408                            0, 0, 0, 0, NULL, NULL, hInst, NULL);
 409 }
 410
 411 HWND get_thread_hwnd(void)
 412 {
 413     thread_data_t *thread_data;
 414
 415     thread_data = get_thread_data(TRUE);
 416     if(!thread_data)
 417         return NULL;
 418
 419     if(!thread_data->thread_hwnd)
 420         thread_data->thread_hwnd = create_thread_hwnd();
 421
 422     return thread_data->thread_hwnd;
 423 }
 424
 425 thread_data_t *get_thread_data(BOOL create)
 426 {
 427     thread_data_t *thread_data;
 428
 429     if(mshtml_tls == TLS_OUT_OF_INDEXES) {
 430         DWORD tls;
 431
 432         if(!create)
 433             return NULL;
 434
 435         tls = TlsAlloc();
 436         if(tls == TLS_OUT_OF_INDEXES)
 437             return NULL;
 438
 439         tls = InterlockedCompareExchange((LONG*)&mshtml_tls, tls, TLS_OUT_OF_INDEXES);
 440         if(tls != mshtml_tls)
 441             TlsFree(tls);
 442     }
 443
 444     thread_data = TlsGetValue(mshtml_tls);
 445     if(!thread_data && create) {
 446         thread_data = calloc(1, sizeof(thread_data_t));
 447         if(!thread_data)
 448             return NULL;
 449
 450         TlsSetValue(mshtml_tls, thread_data);
 451         list_init(&thread_data->task_list);
 452         list_init(&thread_data->event_task_list);
 453         list_init(&thread_data->timer_list);
 454         wine_rb_init(&thread_data->session_storage_map, session_storage_map_cmp);
 455     }
 456
 457     return thread_data;
 458 }
 459
 460 ULONGLONG get_time_stamp(void)
 461 {
 462     FILETIME time;
 463
 464     /* 1601 to 1970 is 369 years plus 89 leap days */
 465     const ULONGLONG time_epoch = (ULONGLONG)(369 * 365 + 89) * 86400 * 1000;
 466
 467     GetSystemTimeAsFileTime(&time);
 468     return (((ULONGLONG)time.dwHighDateTime << 32) + time.dwLowDateTime) / 10000 - time_epoch;
 469 }