Pileus Git - ~andy/gtk/blob - gdk/broadway/gdkdisplay-broadway.c

   1 /* GDK - The GIMP Drawing Kit
   2  * gdkdisplay-broadway.c
   3  *
   4  * Copyright 2001 Sun Microsystems Inc.
   5  * Copyright (C) 2004 Nokia Corporation
   6  *
   7  * Erwann Chenede <erwann.chenede@sun.com>
   8  *
   9  * This library is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU Library General Public
  11  * License as published by the Free Software Foundation; either
  12  * version 2 of the License, or (at your option) any later version.
  13  *
  14  * This library is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * Library General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Library General Public
  20  * License along with this library; if not, write to the
  21  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  22  * Boston, MA 02111-1307, USA.
  23  */
  24
  25 #include "config.h"
  26
  27 #include "gdkdisplay-broadway.h"
  28
  29 #include "gdkdisplay.h"
  30 #include "gdkeventsource.h"
  31 #include "gdkscreen.h"
  32 #include "gdkscreen-broadway.h"
  33 #include "gdkinternals.h"
  34 #include "gdkdeviceprivate.h"
  35 #include "gdkdevicemanager-broadway.h"
  36
  37 #include <glib.h>
  38 #include <glib/gprintf.h>
  39 #include <stdlib.h>
  40 #include <string.h>
  41 #include <errno.h>
  42 #include <unistd.h>
  43
  44 static void   gdk_broadway_display_dispose            (GObject            *object);
  45 static void   gdk_broadway_display_finalize           (GObject            *object);
  46
  47 G_DEFINE_TYPE (GdkBroadwayDisplay, gdk_broadway_display, GDK_TYPE_DISPLAY)
  48
  49 static void
  50 gdk_broadway_display_init (GdkBroadwayDisplay *display)
  51 {
  52   _gdk_broadway_display_manager_add_display (gdk_display_manager_get (),
  53                                              GDK_DISPLAY_OBJECT (display));
  54   display->id_ht = g_hash_table_new (NULL, NULL);
  55 }
  56
  57 static void
  58 gdk_event_init (GdkDisplay *display)
  59 {
  60   GdkBroadwayDisplay *broadway_display;
  61
  62   broadway_display = GDK_BROADWAY_DISPLAY (display);
  63   broadway_display->event_source = _gdk_broadway_event_source_new (display);
  64   broadway_display->saved_serial = 1;
  65 }
  66
  67 static void
  68 gdk_broadway_display_init_input (GdkDisplay *display)
  69 {
  70   GdkBroadwayDisplay *broadway_display;
  71   GdkDeviceManager *device_manager;
  72   GdkDevice *device;
  73   GList *list, *l;
  74
  75   broadway_display = GDK_BROADWAY_DISPLAY (display);
  76   device_manager = gdk_display_get_device_manager (display);
  77
  78   /* For backwards compatibility, just add
  79    * floating devices that are not keyboards.
  80    */
  81   list = gdk_device_manager_list_devices (device_manager, GDK_DEVICE_TYPE_FLOATING);
  82
  83   for (l = list; l; l = l->next)
  84     {
  85       device = l->data;
  86
  87       if (gdk_device_get_source (device) == GDK_SOURCE_KEYBOARD)
  88         continue;
  89
  90       broadway_display->input_devices = g_list_prepend (broadway_display->input_devices,
  91                                                    g_object_ref (l->data));
  92     }
  93
  94   g_list_free (list);
  95
  96   /* Now set "core" pointer to the first
  97    * master device that is a pointer.
  98    */
  99   list = gdk_device_manager_list_devices (device_manager, GDK_DEVICE_TYPE_MASTER);
 100
 101   for (l = list; l; l = l->next)
 102     {
 103       device = list->data;
 104
 105       if (gdk_device_get_source (device) != GDK_SOURCE_MOUSE)
 106         continue;
 107
 108       display->core_pointer = device;
 109       break;
 110     }
 111
 112   /* Add the core pointer to the devices list */
 113   broadway_display->input_devices = g_list_prepend (broadway_display->input_devices,
 114                                                g_object_ref (display->core_pointer));
 115
 116   g_list_free (list);
 117 }
 118
 119 typedef struct HttpRequest {
 120   GdkDisplay *display;
 121   GSocketConnection *connection;
 122   GDataInputStream *data;
 123   GString *request;
 124 }  HttpRequest;
 125
 126 static void
 127 http_request_free (HttpRequest *request)
 128 {
 129   g_object_unref (request->connection);
 130   g_object_unref (request->data);
 131   g_string_free (request->request, TRUE);
 132   g_free (request);
 133 }
 134
 135 struct BroadwayInput {
 136   GdkDisplay *display;
 137   GSocketConnection *connection;
 138   GByteArray *buffer;
 139   GSource *source;
 140 };
 141
 142 static void
 143 broadway_input_free (BroadwayInput *input)
 144 {
 145   g_object_unref (input->connection);
 146   g_byte_array_free (input->buffer, FALSE);
 147   g_source_destroy (input->source);
 148   g_free (input);
 149 }
 150
 151 static void
 152 process_input_messages (GdkBroadwayDisplay *broadway_display)
 153 {
 154   BroadwayInputMsg *message;
 155
 156   while (broadway_display->input_messages)
 157     {
 158       message = broadway_display->input_messages->data;
 159       broadway_display->input_messages =
 160         g_list_delete_link (broadway_display->input_messages,
 161                             broadway_display->input_messages);
 162
 163       _gdk_broadway_events_got_input (GDK_DISPLAY (broadway_display), message);
 164       g_free (message);
 165     }
 166 }
 167
 168 static char *
 169 parse_pointer_data (char *p, BroadwayInputPointerMsg *data)
 170 {
 171   data->id = strtol (p, &p, 10);
 172   p++; /* Skip , */
 173   data->root_x = strtol (p, &p, 10);
 174   p++; /* Skip , */
 175   data->root_y = strtol (p, &p, 10);
 176   p++; /* Skip , */
 177   data->win_x = strtol (p, &p, 10);
 178   p++; /* Skip , */
 179   data->win_y = strtol (p, &p, 10);
 180   p++; /* Skip , */
 181   data->state = strtol (p, &p, 10);
 182
 183   return p;
 184 }
 185
 186 static void
 187 parse_input_message (BroadwayInput *input, const char *message)
 188 {
 189   GdkBroadwayDisplay *broadway_display;
 190   BroadwayInputMsg msg;
 191   char *p;
 192
 193   broadway_display = GDK_BROADWAY_DISPLAY (input->display);
 194
 195   p = (char *)message;
 196   msg.base.type = *p++;
 197   msg.base.serial = (guint32)strtol (p, &p, 10);
 198   p++; /* Skip , */
 199   msg.base.time = strtol(p, &p, 10);
 200   p++; /* Skip , */
 201
 202   switch (msg.base.type) {
 203   case 'e': /* Enter */
 204   case 'l': /* Leave */
 205     p = parse_pointer_data (p, &msg.pointer);
 206     p++; /* Skip , */
 207     msg.crossing.mode = strtol(p, &p, 10);
 208     break;
 209
 210   case 'm': /* Mouse move */
 211     p = parse_pointer_data (p, &msg.pointer);
 212     break;
 213
 214   case 'b':
 215   case 'B':
 216     p = parse_pointer_data (p, &msg.pointer);
 217     p++; /* Skip , */
 218     msg.button.button = strtol(p, &p, 10);
 219     break;
 220
 221   case 's':
 222     p = parse_pointer_data (p, &msg.pointer);
 223     p++; /* Skip , */
 224     msg.scroll.dir = strtol(p, &p, 10);
 225     break;
 226
 227   case 'k':
 228   case 'K':
 229     msg.key.key = strtol(p, &p, 10);
 230     break;
 231
 232   case 'g':
 233   case 'u':
 234     msg.grab_reply.res = strtol(p, &p, 10);
 235     break;
 236
 237   case 'q':
 238     msg.query_reply.root_x = strtol(p, &p, 10);
 239     p++; /* Skip , */
 240     msg.query_reply.root_y = strtol(p, &p, 10);
 241     p++; /* Skip , */
 242     msg.query_reply.win_x = strtol(p, &p, 10);
 243     p++; /* Skip , */
 244     msg.query_reply.win_y = strtol(p, &p, 10);
 245     p++; /* Skip , */
 246     msg.query_reply.window_with_mouse = strtol(p, &p, 10);
 247
 248     break;
 249   default:
 250     g_printerr ("Unknown input command %s\n", message);
 251     break;
 252   }
 253
 254   broadway_display->input_messages = g_list_append (broadway_display->input_messages, g_memdup (&msg, sizeof (msg)));
 255
 256 }
 257
 258 static void
 259 parse_input (BroadwayInput *input)
 260 {
 261   GdkBroadwayDisplay *broadway_display;
 262   char *buf, *ptr;
 263   gsize len;
 264
 265   broadway_display = GDK_BROADWAY_DISPLAY (input->display);
 266
 267   buf = (char *)input->buffer->data;
 268   len = input->buffer->len;
 269
 270   if (len == 0)
 271     return;
 272
 273   if (buf[0] != 0)
 274     {
 275       broadway_display->input = NULL;
 276       broadway_input_free (input);
 277       return;
 278     }
 279
 280   while ((ptr = memchr (buf, 0xff, len)) != NULL)
 281     {
 282       *ptr = 0;
 283       ptr++;
 284
 285       parse_input_message (input, buf + 1);
 286
 287       len -= ptr - buf;
 288       buf = ptr;
 289
 290       if (len > 0 && buf[0] != 0)
 291         {
 292           broadway_display->input = NULL;
 293           broadway_input_free (input);
 294           break;
 295         }
 296     }
 297
 298   g_byte_array_remove_range (input->buffer, 0, buf - (char *)input->buffer->data);
 299 }
 300
 301
 302 static gboolean
 303 process_input_idle_cb (GdkBroadwayDisplay *display)
 304 {
 305   process_input_messages (display);
 306   return FALSE;
 307 }
 308
 309 static void
 310 _gdk_broadway_display_read_all_input_nonblocking (GdkDisplay *display )
 311 {
 312   GdkBroadwayDisplay *broadway_display;
 313   GInputStream *in;
 314   gssize res;
 315   guint8 buffer[1024];
 316   GError *error;
 317   BroadwayInput *input;
 318
 319   broadway_display = GDK_BROADWAY_DISPLAY (display);
 320   if (broadway_display->input == NULL)
 321     return;
 322
 323   input = broadway_display->input;
 324
 325   in = g_io_stream_get_input_stream (G_IO_STREAM (input->connection));
 326
 327   error = NULL;
 328   res = g_pollable_input_stream_read_nonblocking (G_POLLABLE_INPUT_STREAM (in),
 329                                                   buffer, sizeof (buffer), NULL, &error);
 330
 331   if (res <= 0)
 332     {
 333       if (res < 0 &&
 334           g_error_matches (error, G_IO_ERROR, G_IO_ERROR_WOULD_BLOCK))
 335         {
 336           g_error_free (error);
 337           return;
 338         }
 339
 340       broadway_display->input = NULL;
 341       broadway_input_free (input);
 342       if (res < 0)
 343         {
 344           g_print ("input error %s", error->message);
 345           g_error_free (error);
 346         }
 347       return;
 348     }
 349
 350   g_byte_array_append (input->buffer, buffer, res);
 351
 352   parse_input (input);
 353 }
 354
 355 static gboolean
 356 input_data_cb (GObject  *stream,
 357                BroadwayInput *input)
 358 {
 359   GdkBroadwayDisplay *broadway_display;
 360
 361   broadway_display = GDK_BROADWAY_DISPLAY (input->display);
 362   _gdk_broadway_display_read_all_input_nonblocking (input->display);
 363
 364   process_input_messages (broadway_display);
 365
 366   return TRUE;
 367 }
 368
 369 /* Note: This may be called while handling a message (i.e. sorta recursively) */
 370 BroadwayInputMsg *
 371 _gdk_broadway_display_block_for_input (GdkDisplay *display, char op,
 372                                        guint32 serial, gboolean remove_message)
 373 {
 374   GdkBroadwayDisplay *broadway_display;
 375   BroadwayInputMsg *message;
 376   gboolean queued_idle;
 377   gssize res;
 378   guint8 buffer[1024];
 379   BroadwayInput *input;
 380   GInputStream *in;
 381   GList *l;
 382
 383   queued_idle = FALSE;
 384
 385   gdk_display_flush (display);
 386
 387   broadway_display = GDK_BROADWAY_DISPLAY (display);
 388   if (broadway_display->input == NULL)
 389     return NULL;
 390
 391   input = broadway_display->input;
 392
 393   while (TRUE) {
 394     /* Check for existing reply in queue */
 395
 396     for (l = broadway_display->input_messages; l != NULL; l = l->next)
 397       {
 398         message = l->data;
 399
 400         if (message->base.type == op)
 401           {
 402             if (message->base.serial == serial)
 403               {
 404                 if (remove_message)
 405                   broadway_display->input_messages =
 406                     g_list_delete_link (broadway_display->input_messages, l);
 407                 return message;
 408               }
 409           }
 410       }
 411
 412     /* Not found, read more, blocking */
 413
 414     in = g_io_stream_get_input_stream (G_IO_STREAM (input->connection));
 415     res = g_input_stream_read (in, buffer, sizeof (buffer), NULL, NULL);
 416     if (res <= 0)
 417       return NULL;
 418     g_byte_array_append (input->buffer, buffer, res);
 419
 420     parse_input (input);
 421
 422     /* Since we're parsing input but not processing the resulting messages
 423        we might not get a readable callback on the stream, so queue an idle to
 424        process the messages */
 425     if (!queued_idle)
 426       {
 427         queued_idle = TRUE;
 428         g_idle_add_full (G_PRIORITY_DEFAULT, (GSourceFunc)process_input_idle_cb, display, NULL);
 429       }
 430   }
 431 }
 432
 433 #include <unistd.h>
 434 #include <fcntl.h>
 435 static void
 436 set_fd_blocking (int fd)
 437 {
 438   glong arg;
 439
 440   if ((arg = fcntl (fd, F_GETFL, NULL)) < 0)
 441     arg = 0;
 442
 443   arg = arg & ~O_NONBLOCK;
 444
 445   fcntl (fd, F_SETFL, arg);
 446 }
 447
 448 static char *
 449 parse_line (char *line, char *key)
 450 {
 451   char *p;
 452
 453   if (!g_str_has_prefix (line, key))
 454     return NULL;
 455   p = line + strlen (key);
 456   if (*p != ':')
 457     return NULL;
 458   p++;
 459   /* Skip optional initial space */
 460   if (*p == ' ')
 461     p++;
 462   return p;
 463 }
 464 static void
 465 send_error (HttpRequest *request,
 466             int error_code,
 467             const char *reason)
 468 {
 469   char *res;
 470
 471   res = g_strdup_printf ("HTTP/1.0 %d %s\r\n\r\n"
 472                          "<html><head><title>%d %s</title></head>"
 473                          "<body>%s</body></html>",
 474                          error_code, reason,
 475                          error_code, reason,
 476                          reason);
 477   /* TODO: This should really be async */
 478   g_output_stream_write_all (g_io_stream_get_output_stream (G_IO_STREAM (request->connection)),
 479                              res, strlen (res), NULL, NULL, NULL);
 480   g_free (res);
 481   http_request_free (request);
 482 }
 483
 484 static void
 485 start_input (HttpRequest *request)
 486 {
 487   char **lines;
 488   char *p;
 489   int num_key1, num_key2;
 490   guint64 key1, key2;
 491   int num_space;
 492   int i;
 493   guint8 challenge[16];
 494   char *res;
 495   gsize len;
 496   GChecksum *checksum;
 497   char *origin, *host;
 498   GdkBroadwayDisplay *broadway_display;
 499   BroadwayInput *input;
 500   const void *data_buffer;
 501   gsize data_buffer_size;
 502   GInputStream *in;
 503
 504   broadway_display = GDK_BROADWAY_DISPLAY (request->display);
 505
 506   if (broadway_display->input != NULL)
 507     {
 508       send_error (request, 409, "Input already handled");
 509       return;
 510     }
 511
 512   lines = g_strsplit (request->request->str, "\n", 0);
 513
 514   num_key1 = 0;
 515   num_key2 = 0;
 516   key1 = 0;
 517   key2 = 0;
 518   origin = NULL;
 519   host = NULL;
 520   for (i = 0; lines[i] != NULL; i++)
 521     {
 522       if ((p = parse_line (lines[i], "Sec-WebSocket-Key1")))
 523         {
 524           num_space = 0;
 525           while (*p != 0)
 526             {
 527               if (g_ascii_isdigit (*p))
 528                 key1 = key1 * 10 + g_ascii_digit_value (*p);
 529               else if (*p == ' ')
 530                 num_space++;
 531
 532               p++;
 533             }
 534           key1 /= num_space;
 535           num_key1++;
 536         }
 537       else if ((p = parse_line (lines[i], "Sec-WebSocket-Key2")))
 538         {
 539           num_space = 0;
 540           while (*p != 0)
 541             {
 542               if (g_ascii_isdigit (*p))
 543                 key2 = key2 * 10 + g_ascii_digit_value (*p);
 544               else if (*p == ' ')
 545                 num_space++;
 546
 547               p++;
 548             }
 549           key2 /= num_space;
 550           num_key2++;
 551         }
 552       else if ((p = parse_line (lines[i], "Origin")))
 553         {
 554           origin = p;
 555         }
 556       else if ((p = parse_line (lines[i], "Host")))
 557         {
 558           host = p;
 559         }
 560     }
 561
 562   if (num_key1 != 1 || num_key2 != 1 || origin == NULL || host == NULL)
 563     {
 564       g_strfreev (lines);
 565       send_error (request, 400, "Bad websocket request");
 566       return;
 567     }
 568
 569   challenge[0] = (key1 >> 24) & 0xff;
 570   challenge[1] = (key1 >> 16) & 0xff;
 571   challenge[2] = (key1 >>  8) & 0xff;
 572   challenge[3] = (key1 >>  0) & 0xff;
 573   challenge[4] = (key2 >> 24) & 0xff;
 574   challenge[5] = (key2 >> 16) & 0xff;
 575   challenge[6] = (key2 >>  8) & 0xff;
 576   challenge[7] = (key2 >>  0) & 0xff;
 577
 578   if (!g_input_stream_read_all (G_INPUT_STREAM (request->data), challenge+8, 8, NULL, NULL, NULL))
 579     {
 580       g_strfreev (lines);
 581       send_error (request, 400, "Bad websocket request");
 582       return;
 583     }
 584
 585   checksum = g_checksum_new (G_CHECKSUM_MD5);
 586   g_checksum_update (checksum, challenge, 16);
 587   len = 16;
 588   g_checksum_get_digest (checksum, challenge, &len);
 589   g_checksum_free (checksum);
 590
 591   res = g_strdup_printf ("HTTP/1.1 101 WebSocket Protocol Handshake\r\n"
 592                          "Upgrade: WebSocket\r\n"
 593                          "Connection: Upgrade\r\n"
 594                          "Sec-WebSocket-Origin: %s\r\n"
 595                          "Sec-WebSocket-Location: ws://%s/input\r\n"
 596                          "Sec-WebSocket-Protocol: broadway\r\n"
 597                          "\r\n",
 598                          origin, host);
 599
 600   g_output_stream_write_all (g_io_stream_get_output_stream (G_IO_STREAM (request->connection)),
 601                              res, strlen (res), NULL, NULL, NULL);
 602   g_free (res);
 603   g_output_stream_write_all (g_io_stream_get_output_stream (G_IO_STREAM (request->connection)),
 604                              challenge, 16, NULL, NULL, NULL);
 605
 606   input = g_new0 (BroadwayInput, 1);
 607
 608   input->display = request->display;
 609   input->connection = g_object_ref (request->connection);
 610
 611   data_buffer = g_buffered_input_stream_peek_buffer (G_BUFFERED_INPUT_STREAM (request->data), &data_buffer_size);
 612   input->buffer = g_byte_array_sized_new (data_buffer_size);
 613   g_byte_array_append (input->buffer, data_buffer, data_buffer_size);
 614
 615   broadway_display->input = input;
 616
 617   /* This will free and close the data input stream, but we got all the buffered content already */
 618   http_request_free (request);
 619
 620   in = g_io_stream_get_input_stream (G_IO_STREAM (input->connection));
 621   input->source = g_pollable_input_stream_create_source (G_POLLABLE_INPUT_STREAM (in), NULL);
 622   g_source_set_callback (input->source, (GSourceFunc)input_data_cb, input, NULL);
 623   g_source_attach (input->source, NULL);
 624
 625   /* Process any data in the pipe already */
 626   parse_input (input);
 627   process_input_messages (broadway_display);
 628
 629   g_strfreev (lines);
 630 }
 631
 632 static void
 633 start_output (HttpRequest *request)
 634 {
 635   GSocket *socket;
 636   GdkBroadwayDisplay *broadway_display;
 637   int fd;
 638
 639   socket = g_socket_connection_get_socket (request->connection);
 640
 641   broadway_display = GDK_BROADWAY_DISPLAY (request->display);
 642   fd = g_socket_get_fd (socket);
 643   set_fd_blocking (fd);
 644   /* We dup this because otherwise it'll be closed with the request SocketConnection */
 645
 646   if (broadway_display->output)
 647     {
 648       broadway_display->saved_serial = broadway_output_get_next_serial (broadway_display->output);
 649       broadway_output_free (broadway_display->output);
 650     }
 651
 652   broadway_display->output = broadway_output_new (dup(fd), broadway_display->saved_serial);
 653   _gdk_broadway_resync_windows ();
 654
 655   if (broadway_display->pointer_grab_window)
 656     broadway_output_grab_pointer (broadway_display->output,
 657                                   GDK_WINDOW_IMPL_BROADWAY (broadway_display->pointer_grab_window->impl)->id,
 658                                   broadway_display->pointer_grab_owner_events);
 659
 660   http_request_free (request);
 661 }
 662
 663 static void
 664 send_data (HttpRequest *request,
 665              const char *mimetype,
 666              const char *data, gsize len)
 667 {
 668   char *res;
 669
 670   res = g_strdup_printf ("HTTP/1.0 200 OK\r\n"
 671                          "Content-Type: %s\r\n"
 672                          "Content-Length: %"G_GSIZE_FORMAT"\r\n"
 673                          "\r\n",
 674                          mimetype, len);
 675   /* TODO: This should really be async */
 676   g_output_stream_write_all (g_io_stream_get_output_stream (G_IO_STREAM (request->connection)),
 677                              res, strlen (res), NULL, NULL, NULL);
 678   g_free (res);
 679   g_output_stream_write_all (g_io_stream_get_output_stream (G_IO_STREAM (request->connection)),
 680                              data, len, NULL, NULL, NULL);
 681   http_request_free (request);
 682 }
 683
 684 #include "clienthtml.h"
 685 #include "broadwayjs.h"
 686
 687 static void
 688 got_request (HttpRequest *request)
 689 {
 690   char *start, *escaped, *tmp, *version;
 691
 692   if (!g_str_has_prefix (request->request->str, "GET "))
 693     {
 694       send_error (request, 501, "Only GET implemented");
 695       return;
 696     }
 697
 698   start = request->request->str + 4; /* Skip "GET " */
 699
 700   while (*start == ' ')
 701     start++;
 702
 703   for (tmp = start; *tmp != 0 && *tmp != ' ' && *tmp != '\n'; tmp++)
 704     ;
 705   escaped = g_strndup (start, tmp - start);
 706   version = NULL;
 707   if (*tmp == ' ')
 708     {
 709       start = tmp;
 710       while (*start == ' ')
 711         start++;
 712       for (tmp = start; *tmp != 0 && *tmp != ' ' && *tmp != '\n'; tmp++)
 713         ;
 714       version = g_strndup (start, tmp - start);
 715     }
 716
 717   if (strcmp (escaped, "/client.html") == 0 || strcmp (escaped, "/") == 0)
 718     send_data (request, "text/html", client_html, G_N_ELEMENTS(client_html) - 1);
 719   else if (strcmp (escaped, "/broadway.js") == 0)
 720     send_data (request, "text/javascript", broadway_js, G_N_ELEMENTS(broadway_js) - 1);
 721   else if (strcmp (escaped, "/output") == 0)
 722     start_output (request);
 723   else if (strcmp (escaped, "/input") == 0)
 724     start_input (request);
 725   else
 726     send_error (request, 404, "File not found");
 727 }
 728
 729 static void
 730 got_http_request_line (GInputStream *stream,
 731                        GAsyncResult *result,
 732                        HttpRequest *request)
 733 {
 734   char *line;
 735
 736   line = g_data_input_stream_read_line_finish (G_DATA_INPUT_STREAM (stream), result, NULL, NULL);
 737   if (line == NULL)
 738     {
 739       http_request_free (request);
 740       g_printerr ("Error reading request lines\n");
 741       return;
 742     }
 743   if (strlen (line) == 0)
 744     got_request (request);
 745   else
 746     {
 747       /* Protect against overflow in request length */
 748       if (request->request->len > 1024 * 5)
 749         {
 750           send_error (request, 400, "Request to long");
 751         }
 752       else
 753         {
 754           g_string_append_printf (request->request, "%s\n", line);
 755           g_data_input_stream_read_line_async (request->data, 0, NULL,
 756                                                (GAsyncReadyCallback)got_http_request_line, request);
 757         }
 758     }
 759   g_free (line);
 760 }
 761
 762 static gboolean
 763 handle_incoming_connection (GSocketService    *service,
 764                             GSocketConnection *connection,
 765                             GObject           *source_object)
 766 {
 767   HttpRequest *request;
 768   GInputStream *in;
 769
 770   request = g_new0 (HttpRequest, 1);
 771   request->connection = g_object_ref (connection);
 772   request->display = (GdkDisplay *) source_object;
 773   request->request = g_string_new ("");
 774
 775   in = g_io_stream_get_input_stream (G_IO_STREAM (connection));
 776
 777   request->data = g_data_input_stream_new (in);
 778   g_filter_input_stream_set_close_base_stream (G_FILTER_INPUT_STREAM (request->data), FALSE);
 779   /* Be tolerant of input */
 780   g_data_input_stream_set_newline_type (request->data, G_DATA_STREAM_NEWLINE_TYPE_ANY);
 781
 782   g_data_input_stream_read_line_async (request->data, 0, NULL,
 783                                        (GAsyncReadyCallback)got_http_request_line, request);
 784   return TRUE;
 785 }
 786
 787 GdkDisplay *
 788 _gdk_broadway_display_open (const gchar *display_name)
 789 {
 790   GdkDisplay *display;
 791   GdkBroadwayDisplay *broadway_display;
 792   GError *error;
 793   int port;
 794
 795   display = g_object_new (GDK_TYPE_BROADWAY_DISPLAY, NULL);
 796   broadway_display = GDK_BROADWAY_DISPLAY (display);
 797
 798   broadway_display->output = NULL;
 799
 800   /* initialize the display's screens */
 801   broadway_display->screens = g_new (GdkScreen *, 1);
 802   broadway_display->screens[0] = _gdk_broadway_screen_new (display, 0);
 803
 804   /* We need to initialize events after we have the screen
 805    * structures in places
 806    */
 807   _gdk_broadway_screen_events_init (broadway_display->screens[0]);
 808
 809   /*set the default screen */
 810   broadway_display->default_screen = broadway_display->screens[0];
 811
 812   display->device_manager = _gdk_broadway_device_manager_new (display);
 813
 814   gdk_event_init (display);
 815
 816   gdk_broadway_display_init_input (display);
 817   _gdk_broadway_display_init_dnd (display);
 818
 819   _gdk_broadway_screen_setup (broadway_display->screens[0]);
 820
 821   if (display_name == NULL)
 822     display_name = g_getenv ("BROADWAY_DISPLAY");
 823
 824   port = 0;
 825   if (display_name != NULL)
 826     port = strtol(display_name, NULL, 10);
 827   if (port == 0)
 828     port = 8080;
 829
 830   broadway_display->service = g_socket_service_new ();
 831   if (!g_socket_listener_add_inet_port (G_SOCKET_LISTENER (broadway_display->service),
 832                                         port,
 833                                         G_OBJECT (display),
 834                                         &error))
 835     {
 836       g_printerr ("Unable to listen to port %d: %s\n", 8080, error->message);
 837       g_error_free (error);
 838       return NULL;
 839     }
 840   g_signal_connect (broadway_display->service, "incoming", G_CALLBACK (handle_incoming_connection), NULL);
 841
 842   g_signal_emit_by_name (display, "opened");
 843   g_signal_emit_by_name (gdk_display_manager_get (), "display-opened", display);
 844
 845   return display;
 846 }
 847
 848
 849 static G_CONST_RETURN gchar *
 850 gdk_broadway_display_get_name (GdkDisplay *display)
 851 {
 852   g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
 853
 854   return (gchar *) "Broadway";
 855 }
 856
 857 static gint
 858 gdk_broadway_display_get_n_screens (GdkDisplay *display)
 859 {
 860   g_return_val_if_fail (GDK_IS_DISPLAY (display), 0);
 861
 862   return 1;
 863 }
 864
 865 static GdkScreen *
 866 gdk_broadway_display_get_screen (GdkDisplay *display,
 867                                  gint        screen_num)
 868 {
 869   g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
 870   g_return_val_if_fail (screen_num == 0, NULL);
 871
 872   return GDK_BROADWAY_DISPLAY (display)->screens[screen_num];
 873 }
 874
 875 static GdkScreen *
 876 gdk_broadway_display_get_default_screen (GdkDisplay *display)
 877 {
 878   g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
 879
 880   return GDK_BROADWAY_DISPLAY (display)->default_screen;
 881 }
 882
 883 static void
 884 gdk_broadway_display_beep (GdkDisplay *display)
 885 {
 886   g_return_if_fail (GDK_IS_DISPLAY (display));
 887 }
 888
 889 static void
 890 gdk_broadway_display_sync (GdkDisplay *display)
 891 {
 892   g_return_if_fail (GDK_IS_DISPLAY (display));
 893
 894 }
 895
 896 static void
 897 gdk_broadway_display_flush (GdkDisplay *display)
 898 {
 899   GdkBroadwayDisplay *broadway_display = GDK_BROADWAY_DISPLAY (display);
 900
 901   g_return_if_fail (GDK_IS_DISPLAY (display));
 902
 903   if (broadway_display->output &&
 904       !broadway_output_flush (broadway_display->output))
 905     {
 906       broadway_display->saved_serial = broadway_output_get_next_serial (broadway_display->output);
 907       broadway_output_free (broadway_display->output);
 908       broadway_display->output = NULL;
 909     }
 910 }
 911
 912 static gboolean
 913 gdk_broadway_display_has_pending (GdkDisplay *display)
 914 {
 915   return FALSE;
 916 }
 917
 918 static GdkWindow *
 919 gdk_broadway_display_get_default_group (GdkDisplay *display)
 920 {
 921   g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
 922
 923   return NULL;
 924 }
 925
 926 static void
 927 gdk_broadway_display_dispose (GObject *object)
 928 {
 929   GdkBroadwayDisplay *broadway_display = GDK_BROADWAY_DISPLAY (object);
 930
 931   _gdk_broadway_display_manager_remove_display (gdk_display_manager_get (),
 932                                                 GDK_DISPLAY_OBJECT (object));
 933
 934   g_list_foreach (broadway_display->input_devices, (GFunc) g_object_run_dispose, NULL);
 935
 936   _gdk_screen_close (broadway_display->screens[0]);
 937
 938   if (broadway_display->event_source)
 939     {
 940       g_source_destroy (broadway_display->event_source);
 941       g_source_unref (broadway_display->event_source);
 942       broadway_display->event_source = NULL;
 943     }
 944
 945   G_OBJECT_CLASS (gdk_broadway_display_parent_class)->dispose (object);
 946 }
 947
 948 static void
 949 gdk_broadway_display_finalize (GObject *object)
 950 {
 951   GdkBroadwayDisplay *broadway_display = GDK_BROADWAY_DISPLAY (object);
 952
 953   /* Keymap */
 954   if (broadway_display->keymap)
 955     g_object_unref (broadway_display->keymap);
 956
 957   _gdk_broadway_cursor_display_finalize (GDK_DISPLAY_OBJECT(broadway_display));
 958
 959   /* Atom Hashtable */
 960   g_hash_table_destroy (broadway_display->atom_from_virtual);
 961   g_hash_table_destroy (broadway_display->atom_to_virtual);
 962
 963   /* input GdkDevice list */
 964   g_list_foreach (broadway_display->input_devices, (GFunc) g_object_unref, NULL);
 965   g_list_free (broadway_display->input_devices);
 966   /* Free all GdkScreens */
 967   g_object_unref (broadway_display->screens[0]);
 968   g_free (broadway_display->screens);
 969
 970   G_OBJECT_CLASS (gdk_broadway_display_parent_class)->finalize (object);
 971 }
 972
 973 void
 974 _gdk_broadway_display_make_default (GdkDisplay *display)
 975 {
 976 }
 977
 978 static void
 979 gdk_broadway_display_notify_startup_complete (GdkDisplay  *display,
 980                                               const gchar *startup_id)
 981 {
 982 }
 983
 984 static gboolean
 985 gdk_broadway_display_supports_selection_notification (GdkDisplay *display)
 986 {
 987   return FALSE;
 988 }
 989
 990 static gboolean
 991 gdk_broadway_display_request_selection_notification (GdkDisplay *display,
 992                                                      GdkAtom     selection)
 993
 994 {
 995     return FALSE;
 996 }
 997
 998 static gboolean
 999 gdk_broadway_display_supports_clipboard_persistence (GdkDisplay *display)
1000 {
1001   return FALSE;
1002 }
1003
1004 static void
1005 gdk_broadway_display_store_clipboard (GdkDisplay    *display,
1006                                       GdkWindow     *clipboard_window,
1007                                       guint32        time_,
1008                                       const GdkAtom *targets,
1009                                       gint           n_targets)
1010 {
1011 }
1012
1013 static gboolean
1014 gdk_broadway_display_supports_shapes (GdkDisplay *display)
1015 {
1016   return FALSE;
1017 }
1018
1019 static gboolean
1020 gdk_broadway_display_supports_input_shapes (GdkDisplay *display)
1021 {
1022   return FALSE;
1023 }
1024
1025 static gboolean
1026 gdk_broadway_display_supports_composite (GdkDisplay *display)
1027 {
1028   return FALSE;
1029 }
1030
1031 static GList *
1032 gdk_broadway_display_list_devices (GdkDisplay *display)
1033 {
1034   g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
1035
1036   return GDK_BROADWAY_DISPLAY (display)->input_devices;
1037 }
1038
1039 static gulong
1040 gdk_broadway_display_get_next_serial (GdkDisplay *display)
1041 {
1042   GdkBroadwayDisplay *broadway_display;
1043   broadway_display = GDK_BROADWAY_DISPLAY (display);
1044   if (broadway_display->output)
1045     return broadway_output_get_next_serial (broadway_display->output);
1046   return broadway_display->saved_serial;
1047 }
1048
1049
1050 static void
1051 gdk_broadway_display_event_data_copy (GdkDisplay    *display,
1052                                       const GdkEvent *src,
1053                                       GdkEvent       *dst)
1054 {
1055 }
1056
1057 static void
1058 gdk_broadway_display_event_data_free (GdkDisplay    *display,
1059                                       GdkEvent *event)
1060 {
1061 }
1062
1063 static void
1064 gdk_broadway_display_class_init (GdkBroadwayDisplayClass * class)
1065 {
1066   GObjectClass *object_class = G_OBJECT_CLASS (class);
1067   GdkDisplayClass *display_class = GDK_DISPLAY_CLASS (class);
1068
1069   object_class->dispose = gdk_broadway_display_dispose;
1070   object_class->finalize = gdk_broadway_display_finalize;
1071
1072   display_class->window_type = GDK_TYPE_BROADWAY_WINDOW;
1073
1074   display_class->get_name = gdk_broadway_display_get_name;
1075   display_class->get_n_screens = gdk_broadway_display_get_n_screens;
1076   display_class->get_screen = gdk_broadway_display_get_screen;
1077   display_class->get_default_screen = gdk_broadway_display_get_default_screen;
1078   display_class->beep = gdk_broadway_display_beep;
1079   display_class->sync = gdk_broadway_display_sync;
1080   display_class->flush = gdk_broadway_display_flush;
1081   display_class->has_pending = gdk_broadway_display_has_pending;
1082   display_class->queue_events = _gdk_broadway_display_queue_events;
1083   display_class->get_default_group = gdk_broadway_display_get_default_group;
1084   display_class->supports_selection_notification = gdk_broadway_display_supports_selection_notification;
1085   display_class->request_selection_notification = gdk_broadway_display_request_selection_notification;
1086   display_class->supports_clipboard_persistence = gdk_broadway_display_supports_clipboard_persistence;
1087   display_class->store_clipboard = gdk_broadway_display_store_clipboard;
1088   display_class->supports_shapes = gdk_broadway_display_supports_shapes;
1089   display_class->supports_input_shapes = gdk_broadway_display_supports_input_shapes;
1090   display_class->supports_composite = gdk_broadway_display_supports_composite;
1091   display_class->list_devices = gdk_broadway_display_list_devices;
1092   display_class->get_cursor_for_type = _gdk_broadway_display_get_cursor_for_type;
1093   display_class->get_cursor_for_name = _gdk_broadway_display_get_cursor_for_name;
1094   display_class->get_cursor_for_pixbuf = _gdk_broadway_display_get_cursor_for_pixbuf;
1095   display_class->get_default_cursor_size = _gdk_broadway_display_get_default_cursor_size;
1096   display_class->get_maximal_cursor_size = _gdk_broadway_display_get_maximal_cursor_size;
1097   display_class->supports_cursor_alpha = _gdk_broadway_display_supports_cursor_alpha;
1098   display_class->supports_cursor_color = _gdk_broadway_display_supports_cursor_color;
1099
1100   display_class->before_process_all_updates = _gdk_broadway_display_before_process_all_updates;
1101   display_class->after_process_all_updates = _gdk_broadway_display_after_process_all_updates;
1102   display_class->get_next_serial = gdk_broadway_display_get_next_serial;
1103   display_class->notify_startup_complete = gdk_broadway_display_notify_startup_complete;
1104   display_class->event_data_copy = gdk_broadway_display_event_data_copy;
1105   display_class->event_data_free = gdk_broadway_display_event_data_free;
1106   display_class->create_window_impl = _gdk_broadway_display_create_window_impl;
1107   display_class->get_keymap = _gdk_broadway_display_get_keymap;
1108   display_class->get_selection_owner = _gdk_broadway_display_get_selection_owner;
1109   display_class->set_selection_owner = _gdk_broadway_display_set_selection_owner;
1110   display_class->send_selection_notify = _gdk_broadway_display_send_selection_notify;
1111   display_class->get_selection_property = _gdk_broadway_display_get_selection_property;
1112   display_class->convert_selection = _gdk_broadway_display_convert_selection;
1113   display_class->text_property_to_utf8_list = _gdk_broadway_display_text_property_to_utf8_list;
1114   display_class->utf8_to_string_target = _gdk_broadway_display_utf8_to_string_target;
1115 }
1116