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,
 265                                        guint32 serial, gboolean remove_message)
 266 {
 267   GdkBroadwayDisplay *broadway_display;
 268   char *message;
 269   guint32 msg_serial;
 270   gboolean queued_idle;
 271   gssize res;
 272   guint8 buffer[1024];
 273   BroadwayInput *input;
 274   GInputStream *in;
 275   GList *l;
 276
 277   queued_idle = FALSE;
 278
 279   gdk_display_flush (display);
 280
 281   broadway_display = GDK_BROADWAY_DISPLAY (display);
 282   if (broadway_display->input == NULL)
 283     return NULL;
 284
 285   input = broadway_display->input;
 286
 287   while (TRUE) {
 288     /* Check for existing reply in queue */
 289
 290     for (l = broadway_display->input_messages; l != NULL; l = l->next)
 291       {
 292         message = l->data;
 293
 294         if (message[0] == op)
 295           {
 296             msg_serial = (guint32)strtol(message+1, NULL, 10);
 297             if (msg_serial == serial)
 298               {
 299                 if (remove_message)
 300                   broadway_display->input_messages =
 301                     g_list_delete_link (broadway_display->input_messages, l);
 302                 return message;
 303               }
 304           }
 305       }
 306
 307     /* Not found, read more, blocking */
 308
 309     in = g_io_stream_get_input_stream (G_IO_STREAM (input->connection));
 310     res = g_input_stream_read (in, buffer, sizeof (buffer), NULL, NULL);
 311     if (res <= 0)
 312       return NULL;
 313     g_byte_array_append (input->buffer, buffer, res);
 314
 315     parse_input (input);
 316
 317     /* Since we're parsing input but not processing the resulting messages
 318        we might not get a readable callback on the stream, so queue an idle to
 319        process the messages */
 320     if (!queued_idle)
 321       {
 322         queued_idle = TRUE;
 323         g_idle_add_full (G_PRIORITY_DEFAULT, (GSourceFunc)process_input_idle_cb, display, NULL);
 324       }
 325   }
 326 }
 327
 328 #include <unistd.h>
 329 #include <fcntl.h>
 330 static void
 331 set_fd_blocking (int fd)
 332 {
 333   glong arg;
 334
 335   if ((arg = fcntl (fd, F_GETFL, NULL)) < 0)
 336     arg = 0;
 337
 338   arg = arg & ~O_NONBLOCK;
 339
 340   fcntl (fd, F_SETFL, arg);
 341 }
 342
 343 static char *
 344 parse_line (char *line, char *key)
 345 {
 346   char *p;
 347
 348   if (!g_str_has_prefix (line, key))
 349     return NULL;
 350   p = line + strlen (key);
 351   if (*p != ':')
 352     return NULL;
 353   p++;
 354   /* Skip optional initial space */
 355   if (*p == ' ')
 356     p++;
 357   return p;
 358 }
 359 static void
 360 send_error (HttpRequest *request,
 361             int error_code,
 362             const char *reason)
 363 {
 364   char *res;
 365
 366   res = g_strdup_printf ("HTTP/1.0 %d %s\r\n\r\n"
 367                          "<html><head><title>%d %s</title></head>"
 368                          "<body>%s</body></html>",
 369                          error_code, reason,
 370                          error_code, reason,
 371                          reason);
 372   /* TODO: This should really be async */
 373   g_output_stream_write_all (g_io_stream_get_output_stream (G_IO_STREAM (request->connection)),
 374                              res, strlen (res), NULL, NULL, NULL);
 375   g_free (res);
 376   http_request_free (request);
 377 }
 378
 379 static void
 380 start_input (HttpRequest *request)
 381 {
 382   char **lines;
 383   char *p;
 384   int num_key1, num_key2;
 385   guint64 key1, key2;
 386   int num_space;
 387   int i;
 388   guint8 challenge[16];
 389   char *res;
 390   gsize len;
 391   GChecksum *checksum;
 392   char *origin, *host;
 393   GdkBroadwayDisplay *broadway_display;
 394   BroadwayInput *input;
 395   const void *data_buffer;
 396   gsize data_buffer_size;
 397   GInputStream *in;
 398
 399   broadway_display = GDK_BROADWAY_DISPLAY (request->display);
 400
 401   if (broadway_display->input != NULL)
 402     {
 403       send_error (request, 409, "Input already handled");
 404       return;
 405     }
 406
 407   lines = g_strsplit (request->request->str, "\n", 0);
 408
 409   num_key1 = 0;
 410   num_key2 = 0;
 411   key1 = 0;
 412   key2 = 0;
 413   origin = NULL;
 414   host = NULL;
 415   for (i = 0; lines[i] != NULL; i++)
 416     {
 417       if ((p = parse_line (lines[i], "Sec-WebSocket-Key1")))
 418         {
 419           num_space = 0;
 420           while (*p != 0)
 421             {
 422               if (g_ascii_isdigit (*p))
 423                 key1 = key1 * 10 + g_ascii_digit_value (*p);
 424               else if (*p == ' ')
 425                 num_space++;
 426
 427               p++;
 428             }
 429           key1 /= num_space;
 430           num_key1++;
 431         }
 432       else if ((p = parse_line (lines[i], "Sec-WebSocket-Key2")))
 433         {
 434           num_space = 0;
 435           while (*p != 0)
 436             {
 437               if (g_ascii_isdigit (*p))
 438                 key2 = key2 * 10 + g_ascii_digit_value (*p);
 439               else if (*p == ' ')
 440                 num_space++;
 441
 442               p++;
 443             }
 444           key2 /= num_space;
 445           num_key2++;
 446         }
 447       else if ((p = parse_line (lines[i], "Origin")))
 448         {
 449           origin = p;
 450         }
 451       else if ((p = parse_line (lines[i], "Host")))
 452         {
 453           host = p;
 454         }
 455     }
 456
 457   if (num_key1 != 1 || num_key2 != 1 || origin == NULL || host == NULL)
 458     {
 459       g_strfreev (lines);
 460       send_error (request, 400, "Bad websocket request");
 461       return;
 462     }
 463
 464   challenge[0] = (key1 >> 24) & 0xff;
 465   challenge[1] = (key1 >> 16) & 0xff;
 466   challenge[2] = (key1 >>  8) & 0xff;
 467   challenge[3] = (key1 >>  0) & 0xff;
 468   challenge[4] = (key2 >> 24) & 0xff;
 469   challenge[5] = (key2 >> 16) & 0xff;
 470   challenge[6] = (key2 >>  8) & 0xff;
 471   challenge[7] = (key2 >>  0) & 0xff;
 472
 473   if (!g_input_stream_read_all (G_INPUT_STREAM (request->data), challenge+8, 8, NULL, NULL, NULL))
 474     {
 475       g_strfreev (lines);
 476       send_error (request, 400, "Bad websocket request");
 477       return;
 478     }
 479
 480   checksum = g_checksum_new (G_CHECKSUM_MD5);
 481   g_checksum_update (checksum, challenge, 16);
 482   len = 16;
 483   g_checksum_get_digest (checksum, challenge, &len);
 484   g_checksum_free (checksum);
 485
 486   res = g_strdup_printf ("HTTP/1.1 101 WebSocket Protocol Handshake\r\n"
 487                          "Upgrade: WebSocket\r\n"
 488                          "Connection: Upgrade\r\n"
 489                          "Sec-WebSocket-Origin: %s\r\n"
 490                          "Sec-WebSocket-Location: ws://%s/input\r\n"
 491                          "Sec-WebSocket-Protocol: broadway\r\n"
 492                          "\r\n",
 493                          origin, host);
 494
 495   g_output_stream_write_all (g_io_stream_get_output_stream (G_IO_STREAM (request->connection)),
 496                              res, strlen (res), NULL, NULL, NULL);
 497   g_free (res);
 498   g_output_stream_write_all (g_io_stream_get_output_stream (G_IO_STREAM (request->connection)),
 499                              challenge, 16, NULL, NULL, NULL);
 500
 501   input = g_new0 (BroadwayInput, 1);
 502
 503   input->display = request->display;
 504   input->connection = g_object_ref (request->connection);
 505
 506   data_buffer = g_buffered_input_stream_peek_buffer (G_BUFFERED_INPUT_STREAM (request->data), &data_buffer_size);
 507   input->buffer = g_byte_array_sized_new (data_buffer_size);
 508   g_byte_array_append (input->buffer, data_buffer, data_buffer_size);
 509
 510   broadway_display->input = input;
 511
 512   /* This will free and close the data input stream, but we got all the buffered content already */
 513   http_request_free (request);
 514
 515   in = g_io_stream_get_input_stream (G_IO_STREAM (input->connection));
 516   input->source = g_pollable_input_stream_create_source (G_POLLABLE_INPUT_STREAM (in), NULL);
 517   g_source_set_callback (input->source, (GSourceFunc)input_data_cb, input, NULL);
 518   g_source_attach (input->source, NULL);
 519
 520   /* Process any data in the pipe already */
 521   parse_input (input);
 522   process_input_messages (broadway_display);
 523
 524   g_strfreev (lines);
 525 }
 526
 527 static void
 528 start_output (HttpRequest *request)
 529 {
 530   GSocket *socket;
 531   GdkBroadwayDisplay *broadway_display;
 532   int fd;
 533
 534   socket = g_socket_connection_get_socket (request->connection);
 535
 536   broadway_display = GDK_BROADWAY_DISPLAY (request->display);
 537   fd = g_socket_get_fd (socket);
 538   set_fd_blocking (fd);
 539   /* We dup this because otherwise it'll be closed with the request SocketConnection */
 540
 541   if (broadway_display->output)
 542     {
 543       broadway_display->saved_serial = broadway_output_get_next_serial (broadway_display->output);
 544       broadway_output_free (broadway_display->output);
 545     }
 546
 547   broadway_display->output = broadway_output_new (dup(fd), broadway_display->saved_serial);
 548   _gdk_broadway_resync_windows ();
 549   http_request_free (request);
 550 }
 551
 552 static void
 553 send_data (HttpRequest *request,
 554              const char *mimetype,
 555              const char *data, gsize len)
 556 {
 557   char *res;
 558
 559   res = g_strdup_printf ("HTTP/1.0 200 OK\r\n"
 560                          "Content-Type: %s\r\n"
 561                          "Content-Length: %"G_GSIZE_FORMAT"\r\n"
 562                          "\r\n",
 563                          mimetype, len);
 564   /* TODO: This should really be async */
 565   g_output_stream_write_all (g_io_stream_get_output_stream (G_IO_STREAM (request->connection)),
 566                              res, strlen (res), NULL, NULL, NULL);
 567   g_free (res);
 568   g_output_stream_write_all (g_io_stream_get_output_stream (G_IO_STREAM (request->connection)),
 569                              data, len, NULL, NULL, NULL);
 570   http_request_free (request);
 571 }
 572
 573 #include "clienthtml.h"
 574 #include "broadwayjs.h"
 575
 576 static void
 577 got_request (HttpRequest *request)
 578 {
 579   char *start, *escaped, *tmp, *version;
 580
 581   if (!g_str_has_prefix (request->request->str, "GET "))
 582     {
 583       send_error (request, 501, "Only GET implemented");
 584       return;
 585     }
 586
 587   start = request->request->str + 4; /* Skip "GET " */
 588
 589   while (*start == ' ')
 590     start++;
 591
 592   for (tmp = start; *tmp != 0 && *tmp != ' ' && *tmp != '\n'; tmp++)
 593     ;
 594   escaped = g_strndup (start, tmp - start);
 595   version = NULL;
 596   if (*tmp == ' ')
 597     {
 598       start = tmp;
 599       while (*start == ' ')
 600         start++;
 601       for (tmp = start; *tmp != 0 && *tmp != ' ' && *tmp != '\n'; tmp++)
 602         ;
 603       version = g_strndup (start, tmp - start);
 604     }
 605
 606   if (strcmp (escaped, "/client.html") == 0 || strcmp (escaped, "/") == 0)
 607     send_data (request, "text/html", client_html, G_N_ELEMENTS(client_html) - 1);
 608   else if (strcmp (escaped, "/broadway.js") == 0)
 609     send_data (request, "text/javascript", broadway_js, G_N_ELEMENTS(broadway_js) - 1);
 610   else if (strcmp (escaped, "/output") == 0)
 611     start_output (request);
 612   else if (strcmp (escaped, "/input") == 0)
 613     start_input (request);
 614   else
 615     send_error (request, 404, "File not found");
 616 }
 617
 618 static void
 619 got_http_request_line (GInputStream *stream,
 620                        GAsyncResult *result,
 621                        HttpRequest *request)
 622 {
 623   char *line;
 624
 625   line = g_data_input_stream_read_line_finish (G_DATA_INPUT_STREAM (stream), result, NULL, NULL);
 626   if (line == NULL)
 627     {
 628       http_request_free (request);
 629       g_printerr ("Error reading request lines\n");
 630       return;
 631     }
 632   if (strlen (line) == 0)
 633     got_request (request);
 634   else
 635     {
 636       /* Protect against overflow in request length */
 637       if (request->request->len > 1024 * 5)
 638         {
 639           send_error (request, 400, "Request to long");
 640         }
 641       else
 642         {
 643           g_string_append_printf (request->request, "%s\n", line);
 644           g_data_input_stream_read_line_async (request->data, 0, NULL,
 645                                                (GAsyncReadyCallback)got_http_request_line, request);
 646         }
 647     }
 648   g_free (line);
 649 }
 650
 651 static gboolean
 652 handle_incoming_connection (GSocketService    *service,
 653                             GSocketConnection *connection,
 654                             GObject           *source_object)
 655 {
 656   HttpRequest *request;
 657   GInputStream *in;
 658
 659   request = g_new0 (HttpRequest, 1);
 660   request->connection = g_object_ref (connection);
 661   request->display = (GdkDisplay *) source_object;
 662   request->request = g_string_new ("");
 663
 664   in = g_io_stream_get_input_stream (G_IO_STREAM (connection));
 665
 666   request->data = g_data_input_stream_new (in);
 667   g_filter_input_stream_set_close_base_stream (G_FILTER_INPUT_STREAM (request->data), FALSE);
 668   /* Be tolerant of input */
 669   g_data_input_stream_set_newline_type (request->data, G_DATA_STREAM_NEWLINE_TYPE_ANY);
 670
 671   g_data_input_stream_read_line_async (request->data, 0, NULL,
 672                                        (GAsyncReadyCallback)got_http_request_line, request);
 673   return TRUE;
 674 }
 675
 676 GdkDisplay *
 677 _gdk_broadway_display_open (const gchar *display_name)
 678 {
 679   GdkDisplay *display;
 680   GdkBroadwayDisplay *broadway_display;
 681   GError *error;
 682   int port;
 683
 684   display = g_object_new (GDK_TYPE_BROADWAY_DISPLAY, NULL);
 685   broadway_display = GDK_BROADWAY_DISPLAY (display);
 686
 687   broadway_display->output = NULL;
 688
 689   /* initialize the display's screens */
 690   broadway_display->screens = g_new (GdkScreen *, 1);
 691   broadway_display->screens[0] = _gdk_broadway_screen_new (display, 0);
 692
 693   /* We need to initialize events after we have the screen
 694    * structures in places
 695    */
 696   _gdk_broadway_screen_events_init (broadway_display->screens[0]);
 697
 698   /*set the default screen */
 699   broadway_display->default_screen = broadway_display->screens[0];
 700
 701   display->device_manager = _gdk_broadway_device_manager_new (display);
 702
 703   gdk_event_init (display);
 704
 705   gdk_broadway_display_init_input (display);
 706   _gdk_broadway_display_init_dnd (display);
 707
 708   _gdk_broadway_screen_setup (broadway_display->screens[0]);
 709
 710   if (display_name == NULL)
 711     display_name = g_getenv ("BROADWAY_DISPLAY");
 712
 713   port = 0;
 714   if (display_name != NULL)
 715     port = strtol(display_name, NULL, 10);
 716   if (port == 0)
 717     port = 8080;
 718
 719   broadway_display->service = g_socket_service_new ();
 720   if (!g_socket_listener_add_inet_port (G_SOCKET_LISTENER (broadway_display->service),
 721                                         port,
 722                                         G_OBJECT (display),
 723                                         &error))
 724     {
 725       g_printerr ("Unable to listen to port %d: %s\n", 8080, error->message);
 726       g_error_free (error);
 727       return NULL;
 728     }
 729   g_signal_connect (broadway_display->service, "incoming", G_CALLBACK (handle_incoming_connection), NULL);
 730
 731   g_signal_emit_by_name (display, "opened");
 732   g_signal_emit_by_name (gdk_display_manager_get (), "display-opened", display);
 733
 734   return display;
 735 }
 736
 737
 738 static G_CONST_RETURN gchar *
 739 gdk_broadway_display_get_name (GdkDisplay *display)
 740 {
 741   g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
 742
 743   return (gchar *) "Broadway";
 744 }
 745
 746 static gint
 747 gdk_broadway_display_get_n_screens (GdkDisplay *display)
 748 {
 749   g_return_val_if_fail (GDK_IS_DISPLAY (display), 0);
 750
 751   return 1;
 752 }
 753
 754 static GdkScreen *
 755 gdk_broadway_display_get_screen (GdkDisplay *display,
 756                                  gint        screen_num)
 757 {
 758   g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
 759   g_return_val_if_fail (screen_num == 0, NULL);
 760
 761   return GDK_BROADWAY_DISPLAY (display)->screens[screen_num];
 762 }
 763
 764 static GdkScreen *
 765 gdk_broadway_display_get_default_screen (GdkDisplay *display)
 766 {
 767   g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
 768
 769   return GDK_BROADWAY_DISPLAY (display)->default_screen;
 770 }
 771
 772 static void
 773 gdk_broadway_display_beep (GdkDisplay *display)
 774 {
 775   g_return_if_fail (GDK_IS_DISPLAY (display));
 776 }
 777
 778 static void
 779 gdk_broadway_display_sync (GdkDisplay *display)
 780 {
 781   g_return_if_fail (GDK_IS_DISPLAY (display));
 782
 783 }
 784
 785 static void
 786 gdk_broadway_display_flush (GdkDisplay *display)
 787 {
 788   GdkBroadwayDisplay *broadway_display = GDK_BROADWAY_DISPLAY (display);
 789
 790   g_return_if_fail (GDK_IS_DISPLAY (display));
 791
 792   if (broadway_display->output &&
 793       !broadway_output_flush (broadway_display->output))
 794     {
 795       broadway_display->saved_serial = broadway_output_get_next_serial (broadway_display->output);
 796       broadway_output_free (broadway_display->output);
 797       broadway_display->output = NULL;
 798     }
 799 }
 800
 801 static gboolean
 802 gdk_broadway_display_has_pending (GdkDisplay *display)
 803 {
 804   return FALSE;
 805 }
 806
 807 static GdkWindow *
 808 gdk_broadway_display_get_default_group (GdkDisplay *display)
 809 {
 810   g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
 811
 812   return NULL;
 813 }
 814
 815 static void
 816 gdk_broadway_display_dispose (GObject *object)
 817 {
 818   GdkBroadwayDisplay *broadway_display = GDK_BROADWAY_DISPLAY (object);
 819
 820   _gdk_broadway_display_manager_remove_display (gdk_display_manager_get (),
 821                                                 GDK_DISPLAY_OBJECT (object));
 822
 823   g_list_foreach (broadway_display->input_devices, (GFunc) g_object_run_dispose, NULL);
 824
 825   _gdk_screen_close (broadway_display->screens[0]);
 826
 827   if (broadway_display->event_source)
 828     {
 829       g_source_destroy (broadway_display->event_source);
 830       g_source_unref (broadway_display->event_source);
 831       broadway_display->event_source = NULL;
 832     }
 833
 834   G_OBJECT_CLASS (gdk_broadway_display_parent_class)->dispose (object);
 835 }
 836
 837 static void
 838 gdk_broadway_display_finalize (GObject *object)
 839 {
 840   GdkBroadwayDisplay *broadway_display = GDK_BROADWAY_DISPLAY (object);
 841
 842   /* Keymap */
 843   if (broadway_display->keymap)
 844     g_object_unref (broadway_display->keymap);
 845
 846   _gdk_broadway_cursor_display_finalize (GDK_DISPLAY_OBJECT(broadway_display));
 847
 848   /* Atom Hashtable */
 849   g_hash_table_destroy (broadway_display->atom_from_virtual);
 850   g_hash_table_destroy (broadway_display->atom_to_virtual);
 851
 852   /* input GdkDevice list */
 853   g_list_foreach (broadway_display->input_devices, (GFunc) g_object_unref, NULL);
 854   g_list_free (broadway_display->input_devices);
 855   /* Free all GdkScreens */
 856   g_object_unref (broadway_display->screens[0]);
 857   g_free (broadway_display->screens);
 858
 859   G_OBJECT_CLASS (gdk_broadway_display_parent_class)->finalize (object);
 860 }
 861
 862 void
 863 _gdk_broadway_display_make_default (GdkDisplay *display)
 864 {
 865 }
 866
 867 static void
 868 gdk_broadway_display_notify_startup_complete (GdkDisplay  *display,
 869                                               const gchar *startup_id)
 870 {
 871 }
 872
 873 static gboolean
 874 gdk_broadway_display_supports_selection_notification (GdkDisplay *display)
 875 {
 876   return FALSE;
 877 }
 878
 879 static gboolean
 880 gdk_broadway_display_request_selection_notification (GdkDisplay *display,
 881                                                      GdkAtom     selection)
 882
 883 {
 884     return FALSE;
 885 }
 886
 887 static gboolean
 888 gdk_broadway_display_supports_clipboard_persistence (GdkDisplay *display)
 889 {
 890   return FALSE;
 891 }
 892
 893 static void
 894 gdk_broadway_display_store_clipboard (GdkDisplay    *display,
 895                                       GdkWindow     *clipboard_window,
 896                                       guint32        time_,
 897                                       const GdkAtom *targets,
 898                                       gint           n_targets)
 899 {
 900 }
 901
 902 static gboolean
 903 gdk_broadway_display_supports_shapes (GdkDisplay *display)
 904 {
 905   return FALSE;
 906 }
 907
 908 static gboolean
 909 gdk_broadway_display_supports_input_shapes (GdkDisplay *display)
 910 {
 911   return FALSE;
 912 }
 913
 914 static gboolean
 915 gdk_broadway_display_supports_composite (GdkDisplay *display)
 916 {
 917   return FALSE;
 918 }
 919
 920 static GList *
 921 gdk_broadway_display_list_devices (GdkDisplay *display)
 922 {
 923   g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
 924
 925   return GDK_BROADWAY_DISPLAY (display)->input_devices;
 926 }
 927
 928 static gulong
 929 gdk_broadway_display_get_next_serial (GdkDisplay *display)
 930 {
 931   GdkBroadwayDisplay *broadway_display;
 932   broadway_display = GDK_BROADWAY_DISPLAY (display);
 933   if (broadway_display->output)
 934     return broadway_output_get_next_serial (broadway_display->output);
 935   return broadway_display->saved_serial;
 936 }
 937
 938
 939 static void
 940 gdk_broadway_display_event_data_copy (GdkDisplay    *display,
 941                                       const GdkEvent *src,
 942                                       GdkEvent       *dst)
 943 {
 944 }
 945
 946 static void
 947 gdk_broadway_display_event_data_free (GdkDisplay    *display,
 948                                       GdkEvent *event)
 949 {
 950 }
 951
 952 static void
 953 gdk_broadway_display_class_init (GdkBroadwayDisplayClass * class)
 954 {
 955   GObjectClass *object_class = G_OBJECT_CLASS (class);
 956   GdkDisplayClass *display_class = GDK_DISPLAY_CLASS (class);
 957
 958   object_class->dispose = gdk_broadway_display_dispose;
 959   object_class->finalize = gdk_broadway_display_finalize;
 960
 961   display_class->window_type = GDK_TYPE_BROADWAY_WINDOW;
 962
 963   display_class->get_name = gdk_broadway_display_get_name;
 964   display_class->get_n_screens = gdk_broadway_display_get_n_screens;
 965   display_class->get_screen = gdk_broadway_display_get_screen;
 966   display_class->get_default_screen = gdk_broadway_display_get_default_screen;
 967   display_class->beep = gdk_broadway_display_beep;
 968   display_class->sync = gdk_broadway_display_sync;
 969   display_class->flush = gdk_broadway_display_flush;
 970   display_class->has_pending = gdk_broadway_display_has_pending;
 971   display_class->queue_events = _gdk_broadway_display_queue_events;
 972   display_class->get_default_group = gdk_broadway_display_get_default_group;
 973   display_class->supports_selection_notification = gdk_broadway_display_supports_selection_notification;
 974   display_class->request_selection_notification = gdk_broadway_display_request_selection_notification;
 975   display_class->supports_clipboard_persistence = gdk_broadway_display_supports_clipboard_persistence;
 976   display_class->store_clipboard = gdk_broadway_display_store_clipboard;
 977   display_class->supports_shapes = gdk_broadway_display_supports_shapes;
 978   display_class->supports_input_shapes = gdk_broadway_display_supports_input_shapes;
 979   display_class->supports_composite = gdk_broadway_display_supports_composite;
 980   display_class->list_devices = gdk_broadway_display_list_devices;
 981   display_class->get_cursor_for_type = _gdk_broadway_display_get_cursor_for_type;
 982   display_class->get_cursor_for_name = _gdk_broadway_display_get_cursor_for_name;
 983   display_class->get_cursor_for_pixbuf = _gdk_broadway_display_get_cursor_for_pixbuf;
 984   display_class->get_default_cursor_size = _gdk_broadway_display_get_default_cursor_size;
 985   display_class->get_maximal_cursor_size = _gdk_broadway_display_get_maximal_cursor_size;
 986   display_class->supports_cursor_alpha = _gdk_broadway_display_supports_cursor_alpha;
 987   display_class->supports_cursor_color = _gdk_broadway_display_supports_cursor_color;
 988
 989   display_class->before_process_all_updates = _gdk_broadway_display_before_process_all_updates;
 990   display_class->after_process_all_updates = _gdk_broadway_display_after_process_all_updates;
 991   display_class->get_next_serial = gdk_broadway_display_get_next_serial;
 992   display_class->notify_startup_complete = gdk_broadway_display_notify_startup_complete;
 993   display_class->event_data_copy = gdk_broadway_display_event_data_copy;
 994   display_class->event_data_free = gdk_broadway_display_event_data_free;
 995   display_class->create_window_impl = _gdk_broadway_display_create_window_impl;
 996   display_class->get_keymap = _gdk_broadway_display_get_keymap;
 997   display_class->get_selection_owner = _gdk_broadway_display_get_selection_owner;
 998   display_class->set_selection_owner = _gdk_broadway_display_set_selection_owner;
 999   display_class->send_selection_notify = _gdk_broadway_display_send_selection_notify;
1000   display_class->get_selection_property = _gdk_broadway_display_get_selection_property;
1001   display_class->convert_selection = _gdk_broadway_display_convert_selection;
1002   display_class->text_property_to_utf8_list = _gdk_broadway_display_text_property_to_utf8_list;
1003   display_class->utf8_to_string_target = _gdk_broadway_display_utf8_to_string_target;
1004 }
1005