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   char *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 void
 169 parse_input (BroadwayInput *input)
 170 {
 171   GdkBroadwayDisplay *broadway_display;
 172   char *buf, *ptr, *message;
 173   gsize len;
 174
 175   broadway_display = GDK_BROADWAY_DISPLAY (input->display);
 176
 177   buf = (char *)input->buffer->data;
 178   len = input->buffer->len;
 179
 180   if (len == 0)
 181     return;
 182
 183   if (buf[0] != 0)
 184     {
 185       broadway_display->input = NULL;
 186       broadway_input_free (input);
 187       return;
 188     }
 189
 190   while ((ptr = memchr (buf, 0xff, len)) != NULL)
 191     {
 192       ptr++;
 193
 194       message = g_strndup (buf+1, (ptr-1) - (buf + 1));
 195       broadway_display->input_messages = g_list_append (broadway_display->input_messages, message);
 196
 197       len -= ptr - buf;
 198       buf = ptr;
 199
 200       if (len > 0 && buf[0] != 0)
 201         {
 202           broadway_display->input = NULL;
 203           broadway_input_free (input);
 204           break;
 205         }
 206     }
 207
 208   g_byte_array_remove_range (input->buffer, 0, buf - (char *)input->buffer->data);
 209 }
 210
 211 static gboolean
 212 input_data_cb (GObject  *stream,
 213                BroadwayInput *input)
 214 {
 215   GdkBroadwayDisplay *broadway_display;
 216   GInputStream *in;
 217   gssize res;
 218   guint8 buffer[1024];
 219   GError *error;
 220
 221   broadway_display = GDK_BROADWAY_DISPLAY (input->display);
 222   in = g_io_stream_get_input_stream (G_IO_STREAM (input->connection));
 223
 224   error = NULL;
 225   res = g_pollable_input_stream_read_nonblocking (G_POLLABLE_INPUT_STREAM (in),
 226                                                   buffer, sizeof (buffer), NULL, &error);
 227
 228   if (res <= 0)
 229     {
 230       if (res < 0 &&
 231           g_error_matches (error, G_IO_ERROR, G_IO_ERROR_WOULD_BLOCK))
 232         {
 233           g_error_free (error);
 234           return TRUE;
 235         }
 236
 237       broadway_display->input = NULL;
 238       broadway_input_free (input);
 239       if (res < 0)
 240         {
 241           g_print ("input error %s", error->message);
 242           g_error_free (error);
 243         }
 244       return FALSE;
 245     }
 246
 247   g_byte_array_append (input->buffer, buffer, res);
 248
 249   parse_input (input);
 250   process_input_messages (broadway_display);
 251
 252   return TRUE;
 253 }
 254
 255 static gboolean
 256 process_input_idle_cb (GdkBroadwayDisplay *display)
 257 {
 258   process_input_messages (display);
 259   return FALSE;
 260 }
 261
 262 /* Note: This may be called while handling a message (i.e. sorta recursively) */
 263 char *
 264 _gdk_broadway_display_block_for_input (GdkDisplay *display, char op, guint32 serial)
 265 {
 266   GdkBroadwayDisplay *broadway_display;
 267   char *message;
 268   guint32 msg_serial;
 269   gboolean queued_idle;
 270   gssize res;
 271   guint8 buffer[1024];
 272   BroadwayInput *input;
 273   GInputStream *in;
 274   GList *l;
 275
 276   queued_idle = FALSE;
 277
 278   gdk_display_flush (display);
 279
 280   broadway_display = GDK_BROADWAY_DISPLAY (display);
 281   if (broadway_display->input == NULL)
 282     return NULL;
 283
 284   input = broadway_display->input;
 285
 286   while (TRUE) {
 287     /* Check for existing reply in queue */
 288
 289     for (l = broadway_display->input_messages; l != NULL; l = l->next)
 290       {
 291         message = l->data;
 292
 293         if (message[0] == op)
 294           {
 295             msg_serial = (guint32)strtol(message+1, NULL, 10);
 296             if (msg_serial == serial)
 297               {
 298                 broadway_display->input_messages =
 299                   g_list_delete_link (broadway_display->input_messages, l);
 300                 return message;
 301               }
 302           }
 303       }
 304
 305     /* Not found, read more, blocking */
 306
 307     in = g_io_stream_get_input_stream (G_IO_STREAM (input->connection));
 308     res = g_input_stream_read (in, buffer, sizeof (buffer), NULL, NULL);
 309     if (res <= 0)
 310       return NULL;
 311     g_byte_array_append (input->buffer, buffer, res);
 312
 313     parse_input (input);
 314
 315     /* Since we're parsing input but not processing the resulting messages
 316        we might not get a readable callback on the stream, so queue an idle to
 317        process the messages */
 318     if (!queued_idle)
 319       {
 320         queued_idle = TRUE;
 321         g_idle_add_full (G_PRIORITY_DEFAULT, (GSourceFunc)process_input_idle_cb, display, NULL);
 322       }
 323   }
 324 }
 325
 326 #include <unistd.h>
 327 #include <fcntl.h>
 328 static void
 329 set_fd_blocking (int fd)
 330 {
 331   glong arg;
 332
 333   if ((arg = fcntl (fd, F_GETFL, NULL)) < 0)
 334     arg = 0;
 335
 336   arg = arg & ~O_NONBLOCK;
 337
 338   fcntl (fd, F_SETFL, arg);
 339 }
 340
 341 static char *
 342 parse_line (char *line, char *key)
 343 {
 344   char *p;
 345
 346   if (!g_str_has_prefix (line, key))
 347     return NULL;
 348   p = line + strlen (key);
 349   if (*p != ':')
 350     return NULL;
 351   p++;
 352   /* Skip optional initial space */
 353   if (*p == ' ')
 354     p++;
 355   return p;
 356 }
 357 static void
 358 send_error (HttpRequest *request,
 359             int error_code,
 360             const char *reason)
 361 {
 362   char *res;
 363
 364   res = g_strdup_printf ("HTTP/1.0 %d %s\r\n\r\n"
 365                          "<html><head><title>%d %s</title></head>"
 366                          "<body>%s</body></html>",
 367                          error_code, reason,
 368                          error_code, reason,
 369                          reason);
 370   /* TODO: This should really be async */
 371   g_output_stream_write_all (g_io_stream_get_output_stream (G_IO_STREAM (request->connection)),
 372                              res, strlen (res), NULL, NULL, NULL);
 373   g_free (res);
 374   http_request_free (request);
 375 }
 376
 377 static void
 378 start_input (HttpRequest *request)
 379 {
 380   char **lines;
 381   char *p;
 382   int num_key1, num_key2;
 383   guint64 key1, key2;
 384   int num_space;
 385   int i;
 386   guint8 challenge[16];
 387   char *res;
 388   gsize len;
 389   GChecksum *checksum;
 390   char *origin, *host;
 391   GdkBroadwayDisplay *broadway_display;
 392   BroadwayInput *input;
 393   const void *data_buffer;
 394   gsize data_buffer_size;
 395   GInputStream *in;
 396
 397   broadway_display = GDK_BROADWAY_DISPLAY (request->display);
 398
 399   if (broadway_display->input != NULL)
 400     {
 401       send_error (request, 409, "Input already handled");
 402       return;
 403     }
 404
 405   lines = g_strsplit (request->request->str, "\n", 0);
 406
 407   num_key1 = 0;
 408   num_key2 = 0;
 409   key1 = 0;
 410   key2 = 0;
 411   origin = NULL;
 412   host = NULL;
 413   for (i = 0; lines[i] != NULL; i++)
 414     {
 415       if ((p = parse_line (lines[i], "Sec-WebSocket-Key1")))
 416         {
 417           num_space = 0;
 418           while (*p != 0)
 419             {
 420               if (g_ascii_isdigit (*p))
 421                 key1 = key1 * 10 + g_ascii_digit_value (*p);
 422               else if (*p == ' ')
 423                 num_space++;
 424
 425               p++;
 426             }
 427           key1 /= num_space;
 428           num_key1++;
 429         }
 430       else if ((p = parse_line (lines[i], "Sec-WebSocket-Key2")))
 431         {
 432           num_space = 0;
 433           while (*p != 0)
 434             {
 435               if (g_ascii_isdigit (*p))
 436                 key2 = key2 * 10 + g_ascii_digit_value (*p);
 437               else if (*p == ' ')
 438                 num_space++;
 439
 440               p++;
 441             }
 442           key2 /= num_space;
 443           num_key2++;
 444         }
 445       else if ((p = parse_line (lines[i], "Origin")))
 446         {
 447           origin = p;
 448         }
 449       else if ((p = parse_line (lines[i], "Host")))
 450         {
 451           host = p;
 452         }
 453     }
 454
 455   if (num_key1 != 1 || num_key2 != 1 || origin == NULL || host == NULL)
 456     {
 457       g_strfreev (lines);
 458       send_error (request, 400, "Bad websocket request");
 459       return;
 460     }
 461
 462   challenge[0] = (key1 >> 24) & 0xff;
 463   challenge[1] = (key1 >> 16) & 0xff;
 464   challenge[2] = (key1 >>  8) & 0xff;
 465   challenge[3] = (key1 >>  0) & 0xff;
 466   challenge[4] = (key2 >> 24) & 0xff;
 467   challenge[5] = (key2 >> 16) & 0xff;
 468   challenge[6] = (key2 >>  8) & 0xff;
 469   challenge[7] = (key2 >>  0) & 0xff;
 470
 471   if (!g_input_stream_read_all (G_INPUT_STREAM (request->data), challenge+8, 8, NULL, NULL, NULL))
 472     {
 473       g_strfreev (lines);
 474       send_error (request, 400, "Bad websocket request");
 475       return;
 476     }
 477
 478   checksum = g_checksum_new (G_CHECKSUM_MD5);
 479   g_checksum_update (checksum, challenge, 16);
 480   len = 16;
 481   g_checksum_get_digest (checksum, challenge, &len);
 482   g_checksum_free (checksum);
 483
 484   res = g_strdup_printf ("HTTP/1.1 101 WebSocket Protocol Handshake\r\n"
 485                          "Upgrade: WebSocket\r\n"
 486                          "Connection: Upgrade\r\n"
 487                          "Sec-WebSocket-Origin: %s\r\n"
 488                          "Sec-WebSocket-Location: ws://%s/input\r\n"
 489                          "Sec-WebSocket-Protocol: broadway\r\n"
 490                          "\r\n",
 491                          origin, host);
 492
 493   g_output_stream_write_all (g_io_stream_get_output_stream (G_IO_STREAM (request->connection)),
 494                              res, strlen (res), NULL, NULL, NULL);
 495   g_free (res);
 496   g_output_stream_write_all (g_io_stream_get_output_stream (G_IO_STREAM (request->connection)),
 497                              challenge, 16, NULL, NULL, NULL);
 498
 499   input = g_new0 (BroadwayInput, 1);
 500
 501   input->display = request->display;
 502   input->connection = g_object_ref (request->connection);
 503
 504   data_buffer = g_buffered_input_stream_peek_buffer (G_BUFFERED_INPUT_STREAM (request->data), &data_buffer_size);
 505   input->buffer = g_byte_array_sized_new (data_buffer_size);
 506   g_byte_array_append (input->buffer, data_buffer, data_buffer_size);
 507
 508   broadway_display->input = input;
 509
 510   /* This will free and close the data input stream, but we got all the buffered content already */
 511   http_request_free (request);
 512
 513   in = g_io_stream_get_input_stream (G_IO_STREAM (input->connection));
 514   input->source = g_pollable_input_stream_create_source (G_POLLABLE_INPUT_STREAM (in), NULL);
 515   g_source_set_callback (input->source, (GSourceFunc)input_data_cb, input, NULL);
 516   g_source_attach (input->source, NULL);
 517
 518   /* Process any data in the pipe already */
 519   parse_input (input);
 520   process_input_messages (broadway_display);
 521
 522   g_strfreev (lines);
 523 }
 524
 525 static void
 526 start_output (HttpRequest *request)
 527 {
 528   GSocket *socket;
 529   GdkBroadwayDisplay *broadway_display;
 530   int fd;
 531
 532   socket = g_socket_connection_get_socket (request->connection);
 533
 534   broadway_display = GDK_BROADWAY_DISPLAY (request->display);
 535   fd = g_socket_get_fd (socket);
 536   set_fd_blocking (fd);
 537   /* We dup this because otherwise it'll be closed with the request SocketConnection */
 538
 539   if (broadway_display->output)
 540     {
 541       broadway_display->saved_serial = broadway_output_get_next_serial (broadway_display->output);
 542       broadway_output_free (broadway_display->output);
 543     }
 544
 545   broadway_display->output = broadway_output_new (dup(fd), broadway_display->saved_serial);
 546   _gdk_broadway_resync_windows ();
 547   http_request_free (request);
 548 }
 549
 550 static void
 551 send_data (HttpRequest *request,
 552              const char *mimetype,
 553              const char *data, gsize len)
 554 {
 555   char *res;
 556
 557   res = g_strdup_printf ("HTTP/1.0 200 OK\r\n"
 558                          "Content-Type: %s\r\n"
 559                          "Content-Length: %"G_GSIZE_FORMAT"\r\n"
 560                          "\r\n",
 561                          mimetype, len);
 562   /* TODO: This should really be async */
 563   g_output_stream_write_all (g_io_stream_get_output_stream (G_IO_STREAM (request->connection)),
 564                              res, strlen (res), NULL, NULL, NULL);
 565   g_free (res);
 566   g_output_stream_write_all (g_io_stream_get_output_stream (G_IO_STREAM (request->connection)),
 567                              data, len, NULL, NULL, NULL);
 568   http_request_free (request);
 569 }
 570
 571 #include "clienthtml.h"
 572 #include "broadwayjs.h"
 573
 574 static void
 575 got_request (HttpRequest *request)
 576 {
 577   char *start, *escaped, *tmp, *version;
 578
 579   if (!g_str_has_prefix (request->request->str, "GET "))
 580     {
 581       send_error (request, 501, "Only GET implemented");
 582       return;
 583     }
 584
 585   start = request->request->str + 4; /* Skip "GET " */
 586
 587   while (*start == ' ')
 588     start++;
 589
 590   for (tmp = start; *tmp != 0 && *tmp != ' ' && *tmp != '\n'; tmp++)
 591     ;
 592   escaped = g_strndup (start, tmp - start);
 593   version = NULL;
 594   if (*tmp == ' ')
 595     {
 596       start = tmp;
 597       while (*start == ' ')
 598         start++;
 599       for (tmp = start; *tmp != 0 && *tmp != ' ' && *tmp != '\n'; tmp++)
 600         ;
 601       version = g_strndup (start, tmp - start);
 602     }
 603
 604   if (strcmp (escaped, "/client.html") == 0 || strcmp (escaped, "/") == 0)
 605     send_data (request, "text/html", client_html, G_N_ELEMENTS(client_html) - 1);
 606   else if (strcmp (escaped, "/broadway.js") == 0)
 607     send_data (request, "text/javascript", broadway_js, G_N_ELEMENTS(broadway_js) - 1);
 608   else if (strcmp (escaped, "/output") == 0)
 609     start_output (request);
 610   else if (strcmp (escaped, "/input") == 0)
 611     start_input (request);
 612   else
 613     send_error (request, 404, "File not found");
 614 }
 615
 616 static void
 617 got_http_request_line (GInputStream *stream,
 618                        GAsyncResult *result,
 619                        HttpRequest *request)
 620 {
 621   char *line;
 622
 623   line = g_data_input_stream_read_line_finish (G_DATA_INPUT_STREAM (stream), result, NULL, NULL);
 624   if (line == NULL)
 625     {
 626       http_request_free (request);
 627       g_printerr ("Error reading request lines\n");
 628       return;
 629     }
 630   if (strlen (line) == 0)
 631     got_request (request);
 632   else
 633     {
 634       /* Protect against overflow in request length */
 635       if (request->request->len > 1024 * 5)
 636         {
 637           send_error (request, 400, "Request to long");
 638         }
 639       else
 640         {
 641           g_string_append_printf (request->request, "%s\n", line);
 642           g_data_input_stream_read_line_async (request->data, 0, NULL,
 643                                                (GAsyncReadyCallback)got_http_request_line, request);
 644         }
 645     }
 646   g_free (line);
 647 }
 648
 649 static gboolean
 650 handle_incoming_connection (GSocketService    *service,
 651                             GSocketConnection *connection,
 652                             GObject           *source_object)
 653 {
 654   HttpRequest *request;
 655   GInputStream *in;
 656
 657   request = g_new0 (HttpRequest, 1);
 658   request->connection = g_object_ref (connection);
 659   request->display = (GdkDisplay *) source_object;
 660   request->request = g_string_new ("");
 661
 662   in = g_io_stream_get_input_stream (G_IO_STREAM (connection));
 663
 664   request->data = g_data_input_stream_new (in);
 665   g_filter_input_stream_set_close_base_stream (G_FILTER_INPUT_STREAM (request->data), FALSE);
 666   /* Be tolerant of input */
 667   g_data_input_stream_set_newline_type (request->data, G_DATA_STREAM_NEWLINE_TYPE_ANY);
 668
 669   g_data_input_stream_read_line_async (request->data, 0, NULL,
 670                                        (GAsyncReadyCallback)got_http_request_line, request);
 671   return TRUE;
 672 }
 673
 674 GdkDisplay *
 675 _gdk_broadway_display_open (const gchar *display_name)
 676 {
 677   GdkDisplay *display;
 678   GdkBroadwayDisplay *broadway_display;
 679   GError *error;
 680
 681   display = g_object_new (GDK_TYPE_BROADWAY_DISPLAY, NULL);
 682   broadway_display = GDK_BROADWAY_DISPLAY (display);
 683
 684   broadway_display->output = NULL;
 685
 686   /* initialize the display's screens */
 687   broadway_display->screens = g_new (GdkScreen *, 1);
 688   broadway_display->screens[0] = _gdk_broadway_screen_new (display, 0);
 689
 690   /* We need to initialize events after we have the screen
 691    * structures in places
 692    */
 693   _gdk_broadway_screen_events_init (broadway_display->screens[0]);
 694
 695   /*set the default screen */
 696   broadway_display->default_screen = broadway_display->screens[0];
 697
 698   display->device_manager = _gdk_broadway_device_manager_new (display);
 699
 700   gdk_event_init (display);
 701
 702   gdk_broadway_display_init_input (display);
 703   _gdk_broadway_display_init_dnd (display);
 704
 705   _gdk_broadway_screen_setup (broadway_display->screens[0]);
 706
 707   broadway_display->service = g_socket_service_new ();
 708   if (!g_socket_listener_add_inet_port (G_SOCKET_LISTENER (broadway_display->service),
 709                                         8080,
 710                                         G_OBJECT (display),
 711                                         &error))
 712     {
 713       g_printerr ("Unable to listen to port %d: %s\n", 8080, error->message);
 714       g_error_free (error);
 715       return NULL;
 716     }
 717   g_signal_connect (broadway_display->service, "incoming", G_CALLBACK (handle_incoming_connection), NULL);
 718
 719   g_signal_emit_by_name (display, "opened");
 720   g_signal_emit_by_name (gdk_display_manager_get (), "display-opened", display);
 721
 722   return display;
 723 }
 724
 725
 726 static G_CONST_RETURN gchar *
 727 gdk_broadway_display_get_name (GdkDisplay *display)
 728 {
 729   g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
 730
 731   return (gchar *) "Broadway";
 732 }
 733
 734 static gint
 735 gdk_broadway_display_get_n_screens (GdkDisplay *display)
 736 {
 737   g_return_val_if_fail (GDK_IS_DISPLAY (display), 0);
 738
 739   return 1;
 740 }
 741
 742 static GdkScreen *
 743 gdk_broadway_display_get_screen (GdkDisplay *display,
 744                                  gint        screen_num)
 745 {
 746   g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
 747   g_return_val_if_fail (screen_num == 0, NULL);
 748
 749   return GDK_BROADWAY_DISPLAY (display)->screens[screen_num];
 750 }
 751
 752 static GdkScreen *
 753 gdk_broadway_display_get_default_screen (GdkDisplay *display)
 754 {
 755   g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
 756
 757   return GDK_BROADWAY_DISPLAY (display)->default_screen;
 758 }
 759
 760 static void
 761 gdk_broadway_display_beep (GdkDisplay *display)
 762 {
 763   g_return_if_fail (GDK_IS_DISPLAY (display));
 764 }
 765
 766 static void
 767 gdk_broadway_display_sync (GdkDisplay *display)
 768 {
 769   g_return_if_fail (GDK_IS_DISPLAY (display));
 770
 771 }
 772
 773 static void
 774 gdk_broadway_display_flush (GdkDisplay *display)
 775 {
 776   GdkBroadwayDisplay *broadway_display = GDK_BROADWAY_DISPLAY (display);
 777
 778   g_return_if_fail (GDK_IS_DISPLAY (display));
 779
 780   if (broadway_display->output &&
 781       !broadway_output_flush (broadway_display->output))
 782     {
 783       broadway_display->saved_serial = broadway_output_get_next_serial (broadway_display->output);
 784       broadway_output_free (broadway_display->output);
 785       broadway_display->output = NULL;
 786     }
 787 }
 788
 789 static gboolean
 790 gdk_broadway_display_has_pending (GdkDisplay *display)
 791 {
 792   return FALSE;
 793 }
 794
 795 static GdkWindow *
 796 gdk_broadway_display_get_default_group (GdkDisplay *display)
 797 {
 798   g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
 799
 800   return NULL;
 801 }
 802
 803 static void
 804 gdk_broadway_display_dispose (GObject *object)
 805 {
 806   GdkBroadwayDisplay *broadway_display = GDK_BROADWAY_DISPLAY (object);
 807
 808   _gdk_broadway_display_manager_remove_display (gdk_display_manager_get (),
 809                                                 GDK_DISPLAY_OBJECT (object));
 810
 811   g_list_foreach (broadway_display->input_devices, (GFunc) g_object_run_dispose, NULL);
 812
 813   _gdk_screen_close (broadway_display->screens[0]);
 814
 815   if (broadway_display->event_source)
 816     {
 817       g_source_destroy (broadway_display->event_source);
 818       g_source_unref (broadway_display->event_source);
 819       broadway_display->event_source = NULL;
 820     }
 821
 822   G_OBJECT_CLASS (gdk_broadway_display_parent_class)->dispose (object);
 823 }
 824
 825 static void
 826 gdk_broadway_display_finalize (GObject *object)
 827 {
 828   GdkBroadwayDisplay *broadway_display = GDK_BROADWAY_DISPLAY (object);
 829
 830   /* Keymap */
 831   if (broadway_display->keymap)
 832     g_object_unref (broadway_display->keymap);
 833
 834   _gdk_broadway_cursor_display_finalize (GDK_DISPLAY_OBJECT(broadway_display));
 835
 836   /* Atom Hashtable */
 837   g_hash_table_destroy (broadway_display->atom_from_virtual);
 838   g_hash_table_destroy (broadway_display->atom_to_virtual);
 839
 840   /* input GdkDevice list */
 841   g_list_foreach (broadway_display->input_devices, (GFunc) g_object_unref, NULL);
 842   g_list_free (broadway_display->input_devices);
 843   /* Free all GdkScreens */
 844   g_object_unref (broadway_display->screens[0]);
 845   g_free (broadway_display->screens);
 846
 847   G_OBJECT_CLASS (gdk_broadway_display_parent_class)->finalize (object);
 848 }
 849
 850 void
 851 _gdk_broadway_display_make_default (GdkDisplay *display)
 852 {
 853 }
 854
 855 static void
 856 gdk_broadway_display_notify_startup_complete (GdkDisplay  *display,
 857                                               const gchar *startup_id)
 858 {
 859 }
 860
 861 static gboolean
 862 gdk_broadway_display_supports_selection_notification (GdkDisplay *display)
 863 {
 864   return FALSE;
 865 }
 866
 867 static gboolean
 868 gdk_broadway_display_request_selection_notification (GdkDisplay *display,
 869                                                      GdkAtom     selection)
 870
 871 {
 872     return FALSE;
 873 }
 874
 875 static gboolean
 876 gdk_broadway_display_supports_clipboard_persistence (GdkDisplay *display)
 877 {
 878   return FALSE;
 879 }
 880
 881 static void
 882 gdk_broadway_display_store_clipboard (GdkDisplay    *display,
 883                                       GdkWindow     *clipboard_window,
 884                                       guint32        time_,
 885                                       const GdkAtom *targets,
 886                                       gint           n_targets)
 887 {
 888 }
 889
 890 static gboolean
 891 gdk_broadway_display_supports_shapes (GdkDisplay *display)
 892 {
 893   return FALSE;
 894 }
 895
 896 static gboolean
 897 gdk_broadway_display_supports_input_shapes (GdkDisplay *display)
 898 {
 899   return FALSE;
 900 }
 901
 902 static gboolean
 903 gdk_broadway_display_supports_composite (GdkDisplay *display)
 904 {
 905   return FALSE;
 906 }
 907
 908 static GList *
 909 gdk_broadway_display_list_devices (GdkDisplay *display)
 910 {
 911   g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
 912
 913   return GDK_BROADWAY_DISPLAY (display)->input_devices;
 914 }
 915
 916 static gulong
 917 gdk_broadway_display_get_next_serial (GdkDisplay *display)
 918 {
 919   GdkBroadwayDisplay *broadway_display;
 920   broadway_display = GDK_BROADWAY_DISPLAY (display);
 921   if (broadway_display->output)
 922     return broadway_output_get_next_serial (broadway_display->output);
 923   return broadway_display->saved_serial;
 924 }
 925
 926
 927 static void
 928 gdk_broadway_display_event_data_copy (GdkDisplay    *display,
 929                                       const GdkEvent *src,
 930                                       GdkEvent       *dst)
 931 {
 932 }
 933
 934 static void
 935 gdk_broadway_display_event_data_free (GdkDisplay    *display,
 936                                       GdkEvent *event)
 937 {
 938 }
 939
 940 static void
 941 gdk_broadway_display_class_init (GdkBroadwayDisplayClass * class)
 942 {
 943   GObjectClass *object_class = G_OBJECT_CLASS (class);
 944   GdkDisplayClass *display_class = GDK_DISPLAY_CLASS (class);
 945
 946   object_class->dispose = gdk_broadway_display_dispose;
 947   object_class->finalize = gdk_broadway_display_finalize;
 948
 949   display_class->window_type = GDK_TYPE_BROADWAY_WINDOW;
 950
 951   display_class->get_name = gdk_broadway_display_get_name;
 952   display_class->get_n_screens = gdk_broadway_display_get_n_screens;
 953   display_class->get_screen = gdk_broadway_display_get_screen;
 954   display_class->get_default_screen = gdk_broadway_display_get_default_screen;
 955   display_class->beep = gdk_broadway_display_beep;
 956   display_class->sync = gdk_broadway_display_sync;
 957   display_class->flush = gdk_broadway_display_flush;
 958   display_class->has_pending = gdk_broadway_display_has_pending;
 959   display_class->queue_events = _gdk_broadway_display_queue_events;
 960   display_class->get_default_group = gdk_broadway_display_get_default_group;
 961   display_class->supports_selection_notification = gdk_broadway_display_supports_selection_notification;
 962   display_class->request_selection_notification = gdk_broadway_display_request_selection_notification;
 963   display_class->supports_clipboard_persistence = gdk_broadway_display_supports_clipboard_persistence;
 964   display_class->store_clipboard = gdk_broadway_display_store_clipboard;
 965   display_class->supports_shapes = gdk_broadway_display_supports_shapes;
 966   display_class->supports_input_shapes = gdk_broadway_display_supports_input_shapes;
 967   display_class->supports_composite = gdk_broadway_display_supports_composite;
 968   display_class->list_devices = gdk_broadway_display_list_devices;
 969   display_class->get_cursor_for_type = _gdk_broadway_display_get_cursor_for_type;
 970   display_class->get_cursor_for_name = _gdk_broadway_display_get_cursor_for_name;
 971   display_class->get_cursor_for_pixbuf = _gdk_broadway_display_get_cursor_for_pixbuf;
 972   display_class->get_default_cursor_size = _gdk_broadway_display_get_default_cursor_size;
 973   display_class->get_maximal_cursor_size = _gdk_broadway_display_get_maximal_cursor_size;
 974   display_class->supports_cursor_alpha = _gdk_broadway_display_supports_cursor_alpha;
 975   display_class->supports_cursor_color = _gdk_broadway_display_supports_cursor_color;
 976
 977   display_class->before_process_all_updates = _gdk_broadway_display_before_process_all_updates;
 978   display_class->after_process_all_updates = _gdk_broadway_display_after_process_all_updates;
 979   display_class->get_next_serial = gdk_broadway_display_get_next_serial;
 980   display_class->notify_startup_complete = gdk_broadway_display_notify_startup_complete;
 981   display_class->event_data_copy = gdk_broadway_display_event_data_copy;
 982   display_class->event_data_free = gdk_broadway_display_event_data_free;
 983   display_class->create_window_impl = _gdk_broadway_display_create_window_impl;
 984   display_class->get_keymap = _gdk_broadway_display_get_keymap;
 985   display_class->get_selection_owner = _gdk_broadway_display_get_selection_owner;
 986   display_class->set_selection_owner = _gdk_broadway_display_set_selection_owner;
 987   display_class->send_selection_notify = _gdk_broadway_display_send_selection_notify;
 988   display_class->get_selection_property = _gdk_broadway_display_get_selection_property;
 989   display_class->convert_selection = _gdk_broadway_display_convert_selection;
 990   display_class->text_property_to_utf8_list = _gdk_broadway_display_text_property_to_utf8_list;
 991   display_class->utf8_to_string_target = _gdk_broadway_display_utf8_to_string_target;
 992 }
 993