#include "config.h" #include "broadway-server.h" #include "broadway-output.h" #include #include #include "gdktypes.h" #include "gdkinternals.h" #include #include #include #ifdef HAVE_UNISTD_H #include #elif defined (G_OS_WIN32) #include #endif #ifdef HAVE_SYS_MMAN_H #include #endif #include #include #include #ifdef G_OS_UNIX #include #include #include #endif #ifdef HAVE_GIO_UNIX #include #endif #ifdef G_OS_WIN32 #include #include #endif #if !GLIB_CHECK_VERSION (2, 67, 3) # define g_memdup2(mem,size) g_memdup((mem), (size)) #endif typedef struct { int id; guint32 tag; } BroadwayOutstandingRoundtrip; typedef struct BroadwayInput BroadwayInput; typedef struct BroadwaySurface BroadwaySurface; struct _BroadwayServer { GObject parent_instance; char *address; int port; char *ssl_cert; char *ssl_key; GSocketService *service; BroadwayOutput *output; guint32 id_counter; guint32 saved_serial; guint64 last_seen_time; BroadwayInput *input; GList *input_messages; guint process_input_idle; GHashTable *surface_id_hash; GList *surfaces; BroadwaySurface *root; gint32 focused_surface_id; /* -1 => none */ int show_keyboard; guint32 next_texture_id; GHashTable *textures; guint32 screen_scale; gint32 mouse_in_surface_id; int last_x, last_y; /* in root coords */ guint32 last_state; gint32 real_mouse_in_surface_id; /* Not affected by grabs */ /* Explicit pointer grabs: */ gint32 pointer_grab_surface_id; /* -1 => none */ gint32 pointer_grab_client_id; /* -1 => none */ guint32 pointer_grab_time; gboolean pointer_grab_owner_events; /* Future data, from the currently queued events */ int future_root_x; int future_root_y; guint32 future_state; int future_mouse_in_surface; GList *outstanding_roundtrips; }; struct _BroadwayServerClass { GObjectClass parent_class; }; typedef struct HttpRequest { BroadwayServer *server; GSocketConnection *socket_connection; GIOStream *connection; GDataInputStream *data; GString *request; } HttpRequest; struct BroadwayInput { BroadwayServer *server; BroadwayOutput *output; GIOStream *connection; GByteArray *buffer; GSource *source; gboolean seen_time; gint64 time_base; gboolean active; }; struct BroadwaySurface { guint32 owner; gint32 id; gint32 x; gint32 y; gint32 width; gint32 height; gboolean visible; gint32 transient_for; guint32 texture; BroadwayNode *nodes; GHashTable *node_lookup; }; struct _BroadwayTexture { grefcount refcount; guint32 id; GBytes *bytes; }; static void broadway_server_resync_surfaces (BroadwayServer *server); static void send_outstanding_roundtrips (BroadwayServer *server); static void broadway_server_ref_texture (BroadwayServer *server, guint32 id); static GType broadway_server_get_type (void); G_DEFINE_TYPE (BroadwayServer, broadway_server, G_TYPE_OBJECT) static void broadway_texture_free (BroadwayTexture *texture) { g_bytes_unref (texture->bytes); g_free (texture); } static void broadway_node_unref (BroadwayServer *server, BroadwayNode *node) { int i; if (g_ref_count_dec (&node->refcount)) { for (i = 0; i < node->n_children; i++) broadway_node_unref (server, node->children[i]); if (node->texture_id) broadway_server_release_texture (server, node->texture_id); g_free (node); } } static BroadwayNode * broadway_node_ref (BroadwayNode *node) { g_ref_count_inc (&node->refcount); return node; } gboolean broadway_node_equal (BroadwayNode *a, BroadwayNode *b) { int i; if (a->type != b->type) return FALSE; if (a->n_data != b->n_data) return FALSE; /* Don't check data for containers, that is just n_children, which we don't want to compare for a shallow equal */ if (a->type != BROADWAY_NODE_CONTAINER) { for (i = 0; i < a->n_data; i++) if (a->data[i] != b->data[i]) return FALSE; } return TRUE; } gboolean broadway_node_deep_equal (BroadwayNode *a, BroadwayNode *b) { int i; if (a->hash != b->hash) return FALSE; if (!broadway_node_equal (a,b)) return FALSE; if (a->n_children != b->n_children) return FALSE; for (i = 0; i < a->n_children; i++) if (!broadway_node_deep_equal (a->children[i], b->children[i])) return FALSE; return TRUE; } void broadway_node_mark_deep_reused (BroadwayNode *node, gboolean reused) { node->reused = reused; for (int i = 0; i < node->n_children; i++) broadway_node_mark_deep_reused (node->children[i], reused); } void broadway_node_mark_deep_consumed (BroadwayNode *node, gboolean consumed) { node->consumed = consumed; for (int i = 0; i < node->n_children; i++) broadway_node_mark_deep_consumed (node->children[i], consumed); } void broadway_node_add_to_lookup (BroadwayNode *node, GHashTable *node_lookup) { g_hash_table_insert (node_lookup, GINT_TO_POINTER(node->id), node); for (int i = 0; i < node->n_children; i++) broadway_node_add_to_lookup (node->children[i], node_lookup); } static void broadway_server_init (BroadwayServer *server) { BroadwaySurface *root; server->service = g_socket_service_new (); server->pointer_grab_surface_id = -1; server->saved_serial = 1; server->last_seen_time = 1; server->surface_id_hash = g_hash_table_new (NULL, NULL); server->id_counter = 0; server->textures = g_hash_table_new_full (g_direct_hash, g_direct_equal, NULL, (GDestroyNotify)broadway_texture_free); root = g_new0 (BroadwaySurface, 1); root->id = server->id_counter++; root->width = 1024; root->height = 768; root->visible = TRUE; server->root = root; server->screen_scale = 1; g_hash_table_insert (server->surface_id_hash, GINT_TO_POINTER (root->id), root); } static void broadway_server_finalize (GObject *object) { BroadwayServer *server = BROADWAY_SERVER (object); g_free (server->address); g_free (server->ssl_cert); g_free (server->ssl_key); g_hash_table_destroy (server->textures); G_OBJECT_CLASS (broadway_server_parent_class)->finalize (object); } static void broadway_server_class_init (BroadwayServerClass * class) { GObjectClass *object_class = G_OBJECT_CLASS (class); object_class->finalize = broadway_server_finalize; } static void broadway_surface_free (BroadwayServer *server, BroadwaySurface *surface) { if (surface->nodes) broadway_node_unref (server, surface->nodes); g_hash_table_unref (surface->node_lookup); g_free (surface); } static BroadwaySurface * broadway_server_lookup_surface (BroadwayServer *server, guint32 id) { return g_hash_table_lookup (server->surface_id_hash, GINT_TO_POINTER (id)); } static void start (BroadwayInput *input); static void http_request_free (HttpRequest *request) { g_object_unref (request->socket_connection); g_object_unref (request->connection); g_object_unref (request->data); g_string_free (request->request, TRUE); g_free (request); } static void broadway_input_free (BroadwayInput *input) { g_object_unref (input->connection); g_byte_array_free (input->buffer, FALSE); g_source_destroy (input->source); g_free (input); } static void update_event_state (BroadwayServer *server, BroadwayInputMsg *message) { BroadwaySurface *surface; switch (message->base.type) { case BROADWAY_EVENT_ENTER: server->last_x = message->pointer.root_x; server->last_y = message->pointer.root_y; server->last_state = message->pointer.state; server->real_mouse_in_surface_id = message->pointer.mouse_surface_id; /* TODO: Unset when it dies */ server->mouse_in_surface_id = message->pointer.event_surface_id; break; case BROADWAY_EVENT_LEAVE: server->last_x = message->pointer.root_x; server->last_y = message->pointer.root_y; server->last_state = message->pointer.state; server->real_mouse_in_surface_id = message->pointer.mouse_surface_id; server->mouse_in_surface_id = 0; break; case BROADWAY_EVENT_POINTER_MOVE: server->last_x = message->pointer.root_x; server->last_y = message->pointer.root_y; server->last_state = message->pointer.state; server->real_mouse_in_surface_id = message->pointer.mouse_surface_id; break; case BROADWAY_EVENT_BUTTON_PRESS: case BROADWAY_EVENT_BUTTON_RELEASE: if (message->base.type == BROADWAY_EVENT_BUTTON_PRESS && server->focused_surface_id != message->pointer.mouse_surface_id && server->pointer_grab_surface_id == -1) { broadway_server_surface_raise (server, message->pointer.mouse_surface_id); broadway_server_focus_surface (server, message->pointer.mouse_surface_id); broadway_server_flush (server); } server->last_x = message->pointer.root_x; server->last_y = message->pointer.root_y; server->last_state = message->pointer.state; server->real_mouse_in_surface_id = message->pointer.mouse_surface_id; break; case BROADWAY_EVENT_SCROLL: server->last_x = message->pointer.root_x; server->last_y = message->pointer.root_y; server->last_state = message->pointer.state; server->real_mouse_in_surface_id = message->pointer.mouse_surface_id; break; case BROADWAY_EVENT_TOUCH: if (message->touch.touch_type == 0 && message->touch.is_emulated && server->focused_surface_id != message->touch.event_surface_id) { broadway_server_surface_raise (server, message->touch.event_surface_id); broadway_server_focus_surface (server, message->touch.event_surface_id); broadway_server_flush (server); } if (message->touch.is_emulated) { server->last_x = message->pointer.root_x; server->last_y = message->pointer.root_y; } server->last_state = message->touch.state; break; case BROADWAY_EVENT_KEY_PRESS: case BROADWAY_EVENT_KEY_RELEASE: server->last_state = message->key.state; break; case BROADWAY_EVENT_GRAB_NOTIFY: case BROADWAY_EVENT_UNGRAB_NOTIFY: break; case BROADWAY_EVENT_CONFIGURE_NOTIFY: surface = broadway_server_lookup_surface (server, message->configure_notify.id); if (surface != NULL) { surface->x = message->configure_notify.x; surface->y = message->configure_notify.y; } break; case BROADWAY_EVENT_ROUNDTRIP_NOTIFY: break; case BROADWAY_EVENT_SCREEN_SIZE_CHANGED: server->root->width = message->screen_resize_notify.width; server->root->height = message->screen_resize_notify.height; server->screen_scale = message->screen_resize_notify.scale; break; default: g_printerr ("update_event_state - Unknown input command %c\n", message->base.type); break; } } gboolean broadway_server_lookahead_event (BroadwayServer *server, const char *types) { BroadwayInputMsg *message; GList *l; for (l = server->input_messages; l != NULL; l = l->next) { message = l->data; if (strchr (types, message->base.type) != NULL) return TRUE; } return FALSE; } static gboolean is_pointer_event (BroadwayInputMsg *message) { return message->base.type == BROADWAY_EVENT_ENTER || message->base.type == BROADWAY_EVENT_LEAVE || message->base.type == BROADWAY_EVENT_POINTER_MOVE || message->base.type == BROADWAY_EVENT_BUTTON_PRESS || message->base.type == BROADWAY_EVENT_BUTTON_RELEASE || message->base.type == BROADWAY_EVENT_SCROLL || message->base.type == BROADWAY_EVENT_GRAB_NOTIFY || message->base.type == BROADWAY_EVENT_UNGRAB_NOTIFY; } static void process_input_message (BroadwayServer *server, BroadwayInputMsg *message) { gint32 client; BroadwaySurface *surface; update_event_state (server, message); switch (message->base.type) { case BROADWAY_EVENT_ENTER: case BROADWAY_EVENT_LEAVE: case BROADWAY_EVENT_POINTER_MOVE: case BROADWAY_EVENT_BUTTON_PRESS: case BROADWAY_EVENT_BUTTON_RELEASE: case BROADWAY_EVENT_SCROLL: case BROADWAY_EVENT_GRAB_NOTIFY: case BROADWAY_EVENT_UNGRAB_NOTIFY: surface = broadway_server_lookup_surface (server, message->pointer.event_surface_id); break; case BROADWAY_EVENT_TOUCH: surface = broadway_server_lookup_surface (server, message->touch.event_surface_id); break; case BROADWAY_EVENT_CONFIGURE_NOTIFY: surface = broadway_server_lookup_surface (server, message->configure_notify.id); break; case BROADWAY_EVENT_ROUNDTRIP_NOTIFY: surface = broadway_server_lookup_surface (server, message->roundtrip_notify.id); break; case BROADWAY_EVENT_KEY_PRESS: case BROADWAY_EVENT_KEY_RELEASE: /* TODO: Send to keys focused clients only... */ case BROADWAY_EVENT_FOCUS: case BROADWAY_EVENT_SCREEN_SIZE_CHANGED: default: surface = NULL; break; } if (surface) client = surface->owner; else client = -1; if (is_pointer_event (message) && server->pointer_grab_surface_id != -1) client = server->pointer_grab_client_id; broadway_events_got_input (message, client); } static void process_input_messages (BroadwayServer *server) { BroadwayInputMsg *message; while (server->input_messages) { message = server->input_messages->data; server->input_messages = g_list_delete_link (server->input_messages, server->input_messages); if (message->base.serial == 0) { /* This was sent before we got any requests, but we don't want the daemon serials to go backwards, so we fix it up to be the last used serial */ message->base.serial = server->saved_serial - 1; } process_input_message (server, message); g_free (message); } } static void fake_configure_notify (BroadwayServer *server, BroadwaySurface *surface) { BroadwayInputMsg ev = { {0} }; ev.base.type = BROADWAY_EVENT_CONFIGURE_NOTIFY; ev.base.serial = server->saved_serial - 1; ev.base.time = server->last_seen_time; ev.configure_notify.id = surface->id; ev.configure_notify.x = surface->x; ev.configure_notify.y = surface->y; ev.configure_notify.width = surface->width; ev.configure_notify.height = surface->height; process_input_message (server, &ev); } static guint32 * parse_pointer_data (guint32 *p, BroadwayInputPointerMsg *data) { data->mouse_surface_id = ntohl (*p++); data->event_surface_id = ntohl (*p++); data->root_x = ntohl (*p++); data->root_y = ntohl (*p++); data->win_x = ntohl (*p++); data->win_y = ntohl (*p++); data->state = ntohl (*p++); return p; } static guint32 * parse_touch_data (guint32 *p, BroadwayInputTouchMsg *data) { data->touch_type = ntohl (*p++); data->event_surface_id = ntohl (*p++); data->sequence_id = ntohl (*p++); data->is_emulated = ntohl (*p++); data->root_x = ntohl (*p++); data->root_y = ntohl (*p++); data->win_x = ntohl (*p++); data->win_y = ntohl (*p++); data->state = ntohl (*p++); return p; } static void update_future_pointer_info (BroadwayServer *server, BroadwayInputPointerMsg *data) { server->future_root_x = data->root_x; server->future_root_y = data->root_y; server->future_state = data->state; server->future_mouse_in_surface = data->mouse_surface_id; } static void queue_input_message (BroadwayServer *server, BroadwayInputMsg *msg) { server->input_messages = g_list_append (server->input_messages, g_memdup2 (msg, sizeof (BroadwayInputMsg))); } static void parse_input_message (BroadwayInput *input, const unsigned char *message) { BroadwayServer *server = input->server; BroadwayInputMsg msg; guint32 *p; gint64 time_; GList *l; memset (&msg, 0, sizeof (msg)); p = (guint32 *) message; msg.base.type = ntohl (*p++); msg.base.serial = ntohl (*p++); time_ = ntohl (*p++); if (time_ == 0) { time_ = server->last_seen_time; } else { if (!input->seen_time) { input->seen_time = TRUE; /* Calculate time base so that any following times are normalized to start 5 seconds after last_seen_time, to avoid issues that could appear when a long hiatus due to a reconnect seems to be instant */ input->time_base = time_ - (server->last_seen_time + 5000); } time_ = time_ - input->time_base; } server->last_seen_time = time_; msg.base.time = time_; switch (msg.base.type) { case BROADWAY_EVENT_ENTER: case BROADWAY_EVENT_LEAVE: p = parse_pointer_data (p, &msg.pointer); update_future_pointer_info (server, &msg.pointer); msg.crossing.mode = ntohl (*p++); break; case BROADWAY_EVENT_POINTER_MOVE: /* Mouse move */ p = parse_pointer_data (p, &msg.pointer); update_future_pointer_info (server, &msg.pointer); break; case BROADWAY_EVENT_BUTTON_PRESS: case BROADWAY_EVENT_BUTTON_RELEASE: p = parse_pointer_data (p, &msg.pointer); update_future_pointer_info (server, &msg.pointer); msg.button.button = ntohl (*p++); break; case BROADWAY_EVENT_SCROLL: p = parse_pointer_data (p, &msg.pointer); update_future_pointer_info (server, &msg.pointer); msg.scroll.dir = ntohl (*p++); break; case BROADWAY_EVENT_TOUCH: p = parse_touch_data (p, &msg.touch); break; case BROADWAY_EVENT_KEY_PRESS: case BROADWAY_EVENT_KEY_RELEASE: msg.key.surface_id = server->focused_surface_id; msg.key.key = ntohl (*p++); msg.key.state = ntohl (*p++); break; case BROADWAY_EVENT_GRAB_NOTIFY: case BROADWAY_EVENT_UNGRAB_NOTIFY: msg.grab_reply.res = ntohl (*p++); break; case BROADWAY_EVENT_CONFIGURE_NOTIFY: msg.configure_notify.id = ntohl (*p++); msg.configure_notify.x = ntohl (*p++); msg.configure_notify.y = ntohl (*p++); msg.configure_notify.width = ntohl (*p++); msg.configure_notify.height = ntohl (*p++); break; case BROADWAY_EVENT_ROUNDTRIP_NOTIFY: msg.roundtrip_notify.id = ntohl (*p++); msg.roundtrip_notify.tag = ntohl (*p++); msg.roundtrip_notify.local = FALSE; /* Remove matched outstanding roundtrips */ for (l = server->outstanding_roundtrips; l != NULL; l = l->next) { BroadwayOutstandingRoundtrip *rt = l->data; if (rt->id == msg.roundtrip_notify.id && rt->tag == msg.roundtrip_notify.tag) break; } if (l == NULL) g_warning ("Got unexpected roundtrip reply for id %d, tag %d\n", msg.roundtrip_notify.id, msg.roundtrip_notify.tag); else { BroadwayOutstandingRoundtrip *rt = l->data; server->outstanding_roundtrips = g_list_delete_link (server->outstanding_roundtrips, l); g_free (rt); } break; case BROADWAY_EVENT_SCREEN_SIZE_CHANGED: msg.screen_resize_notify.width = ntohl (*p++); msg.screen_resize_notify.height = ntohl (*p++); msg.screen_resize_notify.scale = ntohl (*p++); break; default: g_printerr ("parse_input_message - Unknown input command %c (%s)\n", msg.base.type, message); break; } queue_input_message (server, &msg); } static inline void hex_dump (guchar *data, gsize len) { #ifdef DEBUG_WEBSOCKETS gsize i, j; for (j = 0; j < len + 15; j += 16) { fprintf (stderr, "0x%.4x ", j); for (i = 0; i < 16; i++) { if ((j + i) < len) fprintf (stderr, "%.2x ", data[j+i]); else fprintf (stderr, " "); if (i == 8) fprintf (stderr, " "); } fprintf (stderr, " | "); for (i = 0; i < 16; i++) if ((j + i) < len && g_ascii_isalnum(data[j+i])) fprintf (stderr, "%c", data[j+i]); else fprintf (stderr, "."); fprintf (stderr, "\n"); } #endif } static void parse_input (BroadwayInput *input) { if (!input->buffer->len) return; hex_dump (input->buffer->data, input->buffer->len); while (input->buffer->len > 2) { gsize len, payload_len; BroadwayWSOpCode code; gboolean is_mask, fin; guchar *buf, *data, *mask; buf = input->buffer->data; len = input->buffer->len; #ifdef DEBUG_WEBSOCKETS g_print ("Parse input first byte 0x%2x 0x%2x\n", buf[0], buf[1]); #endif fin = buf[0] & 0x80; code = buf[0] & 0x0f; payload_len = buf[1] & 0x7f; is_mask = buf[1] & 0x80; data = buf + 2; if (payload_len == 126) { if (len < 4) return; payload_len = GUINT16_FROM_BE( *(guint16 *) data ); data += 2; } else if (payload_len == 127) { if (len < 10) return; payload_len = GUINT64_FROM_BE( *(guint64 *) data ); data += 8; } mask = NULL; if (is_mask) { if (data - buf + 4 > len) return; mask = data; data += 4; } if (data - buf + payload_len > len) return; /* wait to accumulate more */ if (is_mask) { gsize i; for (i = 0; i < payload_len; i++) data[i] ^= mask[i%4]; } switch (code) { case BROADWAY_WS_CNX_CLOSE: break; /* hang around anyway */ case BROADWAY_WS_BINARY: if (!fin) { #ifdef DEBUG_WEBSOCKETS g_warning ("can't yet accept fragmented input"); #endif } else { parse_input_message (input, data); } break; case BROADWAY_WS_CNX_PING: broadway_output_pong (input->output); break; case BROADWAY_WS_CNX_PONG: break; /* we never send pings, but tolerate pongs */ case BROADWAY_WS_TEXT: case BROADWAY_WS_CONTINUATION: default: { g_warning ("fragmented or unknown input code 0x%2x with fin set", code); break; } } g_byte_array_remove_range (input->buffer, 0, data - buf + payload_len); } } static gboolean process_input_idle_cb (BroadwayServer *server) { server->process_input_idle = 0; process_input_messages (server); return G_SOURCE_REMOVE; } static void queue_process_input_at_idle (BroadwayServer *server) { if (server->process_input_idle == 0) server->process_input_idle = g_idle_add_full (G_PRIORITY_DEFAULT, (GSourceFunc)process_input_idle_cb, server, NULL); } static gboolean broadway_server_read_all_input_nonblocking (BroadwayInput *input) { GInputStream *in; gssize res; guint8 buffer[1024]; GError *error = NULL; if (input == NULL) return FALSE; in = g_io_stream_get_input_stream (input->connection); res = g_pollable_input_stream_read_nonblocking (G_POLLABLE_INPUT_STREAM (in), buffer, sizeof (buffer), NULL, &error); if (res <= 0) { if (res < 0 && g_error_matches (error, G_IO_ERROR, G_IO_ERROR_WOULD_BLOCK)) { g_error_free (error); return TRUE; } if (input->server->input == input) { send_outstanding_roundtrips (input->server); input->server->input = NULL; } broadway_input_free (input); if (res < 0) { g_printerr ("input error %s\n", error->message); g_error_free (error); } return FALSE; } g_byte_array_append (input->buffer, buffer, res); parse_input (input); return TRUE; } static void broadway_server_consume_all_input (BroadwayServer *server) { broadway_server_read_all_input_nonblocking (server->input); /* Since we're parsing input but not processing the resulting messages we might not get a readable callback on the stream, so queue an idle to process the messages */ queue_process_input_at_idle (server); } static gboolean input_data_cb (GObject *stream, BroadwayInput *input) { BroadwayServer *server = input->server; if (!broadway_server_read_all_input_nonblocking (input)) return FALSE; if (input->active) process_input_messages (server); return TRUE; } guint32 broadway_server_get_next_serial (BroadwayServer *server) { if (server->output) return broadway_output_get_next_serial (server->output); return server->saved_serial; } void broadway_server_get_screen_size (BroadwayServer *server, guint32 *width, guint32 *height, guint32 *scale) { *width = server->root->width; *height = server->root->height; *scale = server->screen_scale; } static void broadway_server_fake_roundtrip_reply (BroadwayServer *server, int id, guint32 tag) { BroadwayInputMsg msg; msg.base.type = BROADWAY_EVENT_ROUNDTRIP_NOTIFY; msg.base.serial = 0; msg.base.time = server->last_seen_time; msg.roundtrip_notify.id = id; msg.roundtrip_notify.tag = tag; msg.roundtrip_notify.local = 1; queue_input_message (server, &msg); queue_process_input_at_idle (server); } void broadway_server_flush (BroadwayServer *server) { if (server->output && !broadway_output_flush (server->output)) { server->saved_serial = broadway_output_get_next_serial (server->output); broadway_output_free (server->output); server->output = NULL; send_outstanding_roundtrips (server); } } void broadway_server_roundtrip (BroadwayServer *server, int id, guint32 tag) { if (server->output) { BroadwayOutstandingRoundtrip *rt = g_new0 (BroadwayOutstandingRoundtrip, 1); rt->id = id; rt->tag = tag; server->outstanding_roundtrips = g_list_prepend (server->outstanding_roundtrips, rt); broadway_output_roundtrip (server->output, id, tag); } else broadway_server_fake_roundtrip_reply (server, id, tag); } static const char * parse_line (const char *line, const char *key) { const char *p; if (g_ascii_strncasecmp (line, key, strlen (key)) != 0) return NULL; p = line + strlen (key); if (*p != ':') return NULL; p++; /* Skip optional initial space */ if (*p == ' ') p++; return p; } static void send_error (HttpRequest *request, int error_code, const char *reason) { char *res; res = g_strdup_printf ("HTTP/1.0 %d %s\r\n\r\n" "%d %s" "%s", error_code, reason, error_code, reason, reason); /* TODO: This should really be async */ g_output_stream_write_all (g_io_stream_get_output_stream (request->connection), res, strlen (res), NULL, NULL, NULL); g_free (res); http_request_free (request); } /* magic from: http://tools.ietf.org/html/draft-ietf-hybi-thewebsocketprotocol-17 */ #define SEC_WEB_SOCKET_KEY_MAGIC "258EAFA5-E914-47DA-95CA-C5AB0DC85B11" /* 'x3JJHMbDL1EzLkh9GBhXDw==' generates 'HSmrc0sMlYUkAGmm5OPpG2HaGWk=' */ static char * generate_handshake_response_wsietf_v7 (const char *key) { gsize digest_len = 20; guchar digest[20]; GChecksum *checksum; checksum = g_checksum_new (G_CHECKSUM_SHA1); if (!checksum) return NULL; g_checksum_update (checksum, (guchar *)key, -1); g_checksum_update (checksum, (guchar *)SEC_WEB_SOCKET_KEY_MAGIC, -1); g_checksum_get_digest (checksum, digest, &digest_len); g_checksum_free (checksum); g_assert (digest_len == 20); return g_base64_encode (digest, digest_len); } static void start_input (HttpRequest *request) { char **lines; const char *p; int i; char *res; const char *origin, *host; BroadwayInput *input; const void *data_buffer; gsize data_buffer_size; GInputStream *in; const char *key; GSocket *socket; int flag = 1; #ifdef DEBUG_WEBSOCKETS g_print ("incoming request:\n%s\n", request->request->str); #endif lines = g_strsplit (request->request->str, "\n", 0); key = NULL; origin = NULL; host = NULL; for (i = 0; lines[i] != NULL; i++) { if ((p = parse_line (lines[i], "Sec-WebSocket-Key"))) key = p; else if ((p = parse_line (lines[i], "Origin"))) origin = p; else if ((p = parse_line (lines[i], "Host"))) host = p; else if ((p = parse_line (lines[i], "Sec-WebSocket-Origin"))) origin = p; } if (host == NULL) { g_strfreev (lines); send_error (request, 400, "Bad websocket request"); return; } if (key != NULL) { char* accept = generate_handshake_response_wsietf_v7 (key); res = g_strdup_printf ("HTTP/1.1 101 Switching Protocols\r\n" "Upgrade: websocket\r\n" "Connection: Upgrade\r\n" "Sec-WebSocket-Accept: %s\r\n" "%s%s%s" "Sec-WebSocket-Location: ws://%s/socket\r\n" "Sec-WebSocket-Protocol: broadway\r\n" "\r\n", accept, origin?"Sec-WebSocket-Origin: ":"", origin?origin:"", origin?"\r\n":"", host); g_free (accept); #ifdef DEBUG_WEBSOCKETS g_print ("v7 proto response:\n%s", res); #endif g_output_stream_write_all (g_io_stream_get_output_stream (request->connection), res, strlen (res), NULL, NULL, NULL); g_free (res); } else { g_strfreev (lines); send_error (request, 400, "Bad websocket request"); return; } socket = g_socket_connection_get_socket (request->socket_connection); setsockopt (g_socket_get_fd (socket), IPPROTO_TCP, TCP_NODELAY, (char *) &flag, sizeof(int)); input = g_new0 (BroadwayInput, 1); input->server = request->server; input->connection = g_object_ref (request->connection); data_buffer = g_buffered_input_stream_peek_buffer (G_BUFFERED_INPUT_STREAM (request->data), &data_buffer_size); input->buffer = g_byte_array_sized_new (data_buffer_size); g_byte_array_append (input->buffer, data_buffer, data_buffer_size); input->output = broadway_output_new (g_io_stream_get_output_stream (request->connection), 0); /* This will free and close the data input stream, but we got all the buffered content already */ http_request_free (request); in = g_io_stream_get_input_stream (input->connection); input->source = g_pollable_input_stream_create_source (G_POLLABLE_INPUT_STREAM (in), NULL); g_source_set_callback (input->source, (GSourceFunc)input_data_cb, input, NULL); g_source_attach (input->source, NULL); start (input); /* Process any data in the pipe already */ parse_input (input); g_strfreev (lines); } static void send_outstanding_roundtrips (BroadwayServer *server) { GList *l; for (l = server->outstanding_roundtrips; l != NULL; l = l->next) { BroadwayOutstandingRoundtrip *rt = l->data; broadway_server_fake_roundtrip_reply (server, rt->id, rt->tag); } g_list_free_full (server->outstanding_roundtrips, g_free); server->outstanding_roundtrips = NULL; } static void start (BroadwayInput *input) { BroadwayServer *server; input->active = TRUE; server = BROADWAY_SERVER (input->server); if (server->output) { send_outstanding_roundtrips (server); broadway_output_disconnected (server->output); broadway_output_flush (server->output); } if (server->input != NULL) { send_outstanding_roundtrips (server); broadway_input_free (server->input); server->input = NULL; } server->input = input; if (server->output) { server->saved_serial = broadway_output_get_next_serial (server->output); broadway_output_free (server->output); } server->output = input->output; broadway_output_set_next_serial (server->output, server->saved_serial); broadway_output_flush (server->output); broadway_server_resync_surfaces (server); if (server->pointer_grab_surface_id != -1) broadway_output_grab_pointer (server->output, server->pointer_grab_surface_id, server->pointer_grab_owner_events); process_input_messages (server); } static void send_data (HttpRequest *request, const char *mimetype, const char *data, gsize len) { char *res; res = g_strdup_printf ("HTTP/1.0 200 OK\r\n" "Content-Type: %s\r\n" "Content-Length: %"G_GSIZE_FORMAT"\r\n" "\r\n", mimetype, len); /* TODO: This should really be async */ g_output_stream_write_all (g_io_stream_get_output_stream (request->connection), res, strlen (res), NULL, NULL, NULL); g_free (res); g_output_stream_write_all (g_io_stream_get_output_stream (request->connection), data, len, NULL, NULL, NULL); http_request_free (request); } #include "clienthtml.h" #include "broadwayjs.h" static void got_request (HttpRequest *request) { char *start, *escaped, *tmp, *version, *query; if (!g_str_has_prefix (request->request->str, "GET ")) { send_error (request, 501, "Only GET implemented"); return; } start = request->request->str + 4; /* Skip "GET " */ while (*start == ' ') start++; for (tmp = start; *tmp != 0 && *tmp != ' ' && *tmp != '\n'; tmp++) ; escaped = g_strndup (start, tmp - start); version = NULL; if (*tmp == ' ') { start = tmp; while (*start == ' ') start++; for (tmp = start; *tmp != 0 && *tmp != ' ' && *tmp != '\n'; tmp++) ; version = g_strndup (start, tmp - start); } query = strchr (escaped, '?'); if (query) *query = 0; if (strcmp (escaped, "/client.html") == 0 || strcmp (escaped, "/") == 0) send_data (request, "text/html", client_html, G_N_ELEMENTS(client_html) - 1); else if (strcmp (escaped, "/broadway.js") == 0) send_data (request, "text/javascript", broadway_js, G_N_ELEMENTS(broadway_js) - 1); else if (strcmp (escaped, "/socket") == 0) start_input (request); else send_error (request, 404, "File not found"); g_free (escaped); g_free (version); } static void got_http_request_line (GInputStream *stream, GAsyncResult *result, HttpRequest *request) { char *line; line = g_data_input_stream_read_line_finish (G_DATA_INPUT_STREAM (stream), result, NULL, NULL); if (line == NULL) { http_request_free (request); g_printerr ("Error reading request lines\n"); return; } if (strlen (line) == 0) got_request (request); else { /* Protect against overflow in request length */ if (request->request->len > 1024 * 5) { send_error (request, 400, "Request too long"); } else { g_string_append_printf (request->request, "%s\n", line); g_data_input_stream_read_line_async (request->data, 0, NULL, (GAsyncReadyCallback)got_http_request_line, request); } } g_free (line); } static gboolean handle_incoming_connection (GSocketService *service, GSocketConnection *connection, GObject *source_object) { HttpRequest *request; GInputStream *in; request = g_new0 (HttpRequest, 1); request->socket_connection = g_object_ref (connection); request->server = BROADWAY_SERVER (source_object); request->request = g_string_new (""); if (request->server->ssl_cert && request->server->ssl_key) { GError *error = NULL; GTlsCertificate *certificate; certificate = g_tls_certificate_new_from_files (request->server->ssl_cert, request->server->ssl_key, &error); if (!certificate) { g_warning ("Cannot create TLS certificate: %s", error->message); g_error_free (error); return FALSE; } request->connection = g_tls_server_connection_new (G_IO_STREAM (connection), certificate, &error); if (!request->connection) { g_warning ("Cannot create TLS connection: %s", error->message); g_error_free (error); return FALSE; } if (!g_tls_connection_handshake (G_TLS_CONNECTION (request->connection), NULL, &error)) { g_warning ("Cannot create TLS connection: %s", error->message); g_error_free (error); return FALSE; } } else { request->connection = G_IO_STREAM (g_object_ref (connection)); } in = g_io_stream_get_input_stream (request->connection); request->data = g_data_input_stream_new (in); g_filter_input_stream_set_close_base_stream (G_FILTER_INPUT_STREAM (request->data), FALSE); /* Be tolerant of input */ g_data_input_stream_set_newline_type (request->data, G_DATA_STREAM_NEWLINE_TYPE_ANY); g_data_input_stream_read_line_async (request->data, 0, NULL, (GAsyncReadyCallback)got_http_request_line, request); return TRUE; } BroadwayServer * broadway_server_new (char *address, int port, const char *ssl_cert, const char *ssl_key, GError **error) { BroadwayServer *server; GInetAddress *inet_address; GSocketAddress *socket_address; server = g_object_new (BROADWAY_TYPE_SERVER, NULL); server->port = port; server->address = g_strdup (address); server->ssl_cert = g_strdup (ssl_cert); server->ssl_key = g_strdup (ssl_key); if (address == NULL) { if (!g_socket_listener_add_inet_port (G_SOCKET_LISTENER (server->service), server->port, G_OBJECT (server), error)) { g_prefix_error (error, "Unable to listen to port %d: ", server->port); g_object_unref (server); return NULL; } } else { inet_address = g_inet_address_new_from_string (address); if (inet_address == NULL) { g_set_error (error, G_IO_ERROR, G_IO_ERROR_INVALID_DATA, "Invalid ip address %s: ", address); g_object_unref (server); return NULL; } socket_address = g_inet_socket_address_new (inet_address, port); g_object_unref (inet_address); if (!g_socket_listener_add_address (G_SOCKET_LISTENER (server->service), socket_address, G_SOCKET_TYPE_STREAM, G_SOCKET_PROTOCOL_TCP, G_OBJECT (server), NULL, error)) { g_prefix_error (error, "Unable to listen to %s:%d: ", server->address, server->port); g_object_unref (socket_address); g_object_unref (server); return NULL; } g_object_unref (socket_address); } g_signal_connect (server->service, "incoming", G_CALLBACK (handle_incoming_connection), NULL); return server; } BroadwayServer * broadway_server_on_unix_socket_new (char *address, GError **error) { BroadwayServer *server; GSocketAddress *socket_address = NULL; server = g_object_new (BROADWAY_TYPE_SERVER, NULL); server->port = -1; server->address = g_strdup (address); if (address == NULL) { g_set_error (error, G_IO_ERROR, G_IO_ERROR_INVALID_DATA, "Unspecified unix domain socket address"); g_object_unref (server); return NULL; } else { #ifdef HAVE_GIO_UNIX socket_address = g_unix_socket_address_new (address); #endif if (socket_address == NULL) { g_set_error (error, G_IO_ERROR, G_IO_ERROR_INVALID_DATA, "Invalid unix domain socket address %s: ", address); g_object_unref (server); return NULL; } if (!g_socket_listener_add_address (G_SOCKET_LISTENER (server->service), socket_address, G_SOCKET_TYPE_STREAM, G_SOCKET_PROTOCOL_DEFAULT, G_OBJECT (server), NULL, error)) { g_prefix_error (error, "Unable to listen to %s: ", server->address); g_object_unref (socket_address); g_object_unref (server); return NULL; } g_object_unref (socket_address); } g_signal_connect (server->service, "incoming", G_CALLBACK (handle_incoming_connection), NULL); return server; } guint32 broadway_server_get_last_seen_time (BroadwayServer *server) { broadway_server_consume_all_input (server); return (guint32) server->last_seen_time; } void broadway_server_query_mouse (BroadwayServer *server, guint32 *surface, gint32 *root_x, gint32 *root_y, guint32 *mask) { if (server->output) { broadway_server_consume_all_input (server); if (root_x) *root_x = server->future_root_x; if (root_y) *root_y = server->future_root_y; if (mask) *mask = server->future_state; if (surface) *surface = server->future_mouse_in_surface; return; } /* Fallback when unconnected */ if (root_x) *root_x = server->last_x; if (root_y) *root_y = server->last_y; if (mask) *mask = server->last_state; if (surface) *surface = server->mouse_in_surface_id; } void broadway_server_destroy_surface (BroadwayServer *server, int id) { BroadwaySurface *surface; if (server->mouse_in_surface_id == id) { /* TODO: Send leave + enter event, update cursors, etc */ server->mouse_in_surface_id = 0; } if (server->pointer_grab_surface_id == id) server->pointer_grab_surface_id = -1; if (server->output) broadway_output_destroy_surface (server->output, id); surface = broadway_server_lookup_surface (server, id); if (surface != NULL) { server->surfaces = g_list_remove (server->surfaces, surface); g_hash_table_remove (server->surface_id_hash, GINT_TO_POINTER (id)); broadway_surface_free (server, surface); } } gboolean broadway_server_surface_show (BroadwayServer *server, int id) { BroadwaySurface *surface; gboolean sent = FALSE; surface = broadway_server_lookup_surface (server, id); if (surface == NULL) return FALSE; surface->visible = TRUE; if (server->output) { broadway_output_show_surface (server->output, surface->id); sent = TRUE; } return sent; } gboolean broadway_server_surface_hide (BroadwayServer *server, int id) { BroadwaySurface *surface; gboolean sent = FALSE; surface = broadway_server_lookup_surface (server, id); if (surface == NULL) return FALSE; surface->visible = FALSE; if (server->mouse_in_surface_id == id) { /* TODO: Send leave + enter event, update cursors, etc */ server->mouse_in_surface_id = 0; } if (server->pointer_grab_surface_id == id) server->pointer_grab_surface_id = -1; if (server->output) { broadway_output_hide_surface (server->output, surface->id); sent = TRUE; } return sent; } void broadway_server_surface_raise (BroadwayServer *server, int id) { BroadwaySurface *surface; surface = broadway_server_lookup_surface (server, id); if (surface == NULL) return; server->surfaces = g_list_remove (server->surfaces, surface); server->surfaces = g_list_append (server->surfaces, surface); if (server->output) broadway_output_raise_surface (server->output, surface->id); } void broadway_server_set_show_keyboard (BroadwayServer *server, gboolean show) { server->show_keyboard = show; if (server->output) { broadway_output_set_show_keyboard (server->output, server->show_keyboard); broadway_server_flush (server); } } void broadway_server_surface_lower (BroadwayServer *server, int id) { BroadwaySurface *surface; surface = broadway_server_lookup_surface (server, id); if (surface == NULL) return; server->surfaces = g_list_remove (server->surfaces, surface); server->surfaces = g_list_prepend (server->surfaces, surface); if (server->output) broadway_output_lower_surface (server->output, surface->id); } void broadway_server_surface_set_transient_for (BroadwayServer *server, int id, int parent) { BroadwaySurface *surface; surface = broadway_server_lookup_surface (server, id); if (surface == NULL) return; surface->transient_for = parent; if (server->output) { broadway_output_set_transient_for (server->output, surface->id, surface->transient_for); broadway_server_flush (server); } } gboolean broadway_server_has_client (BroadwayServer *server) { return server->output != NULL; } #define NODE_SIZE_COLOR 1 #define NODE_SIZE_FLOAT 1 #define NODE_SIZE_POINT 2 #define NODE_SIZE_MATRIX 16 #define NODE_SIZE_SIZE 2 #define NODE_SIZE_RECT (NODE_SIZE_POINT + NODE_SIZE_SIZE) #define NODE_SIZE_RRECT (NODE_SIZE_RECT + 4 * NODE_SIZE_SIZE) #define NODE_SIZE_COLOR_STOP (NODE_SIZE_FLOAT + NODE_SIZE_COLOR) #define NODE_SIZE_SHADOW (NODE_SIZE_COLOR + 3 * NODE_SIZE_FLOAT) static guint32 rotl (guint32 value, int shift) { if ((shift &= 32 - 1) == 0) return value; return (value << shift) | (value >> (32 - shift)); } static BroadwayNode * decode_nodes (BroadwayServer *server, BroadwaySurface *surface, int len, guint32 data[], GHashTable *client_texture_map, int *pos) { BroadwayNode *node; guint32 type, id; guint32 i, n_stops, n_shadows, n_chars; guint32 size, n_children; gint32 texture_offset; guint32 hash; guint32 transform_type; g_assert (*pos < len); size = 0; n_children = 0; texture_offset = -1; type = data[(*pos)++]; id = data[(*pos)++]; switch (type) { case BROADWAY_NODE_REUSE: node = g_hash_table_lookup (surface->node_lookup, GINT_TO_POINTER(id)); g_assert (node != NULL); return broadway_node_ref (node); break; case BROADWAY_NODE_COLOR: size = NODE_SIZE_RECT + NODE_SIZE_COLOR; break; case BROADWAY_NODE_BORDER: size = NODE_SIZE_RRECT + 4 * NODE_SIZE_FLOAT + 4 * NODE_SIZE_COLOR; break; case BROADWAY_NODE_INSET_SHADOW: case BROADWAY_NODE_OUTSET_SHADOW: size = NODE_SIZE_RRECT + NODE_SIZE_COLOR + 4 * NODE_SIZE_FLOAT; break; case BROADWAY_NODE_TEXTURE: texture_offset = 4; size = 5; break; case BROADWAY_NODE_CONTAINER: size = 1; n_children = data[*pos]; break; case BROADWAY_NODE_ROUNDED_CLIP: size = NODE_SIZE_RRECT; n_children = 1; break; case BROADWAY_NODE_CLIP: size = NODE_SIZE_RECT; n_children = 1; break; case BROADWAY_NODE_TRANSFORM: transform_type = data[(*pos)]; size = 1; if (transform_type == 0) { size += NODE_SIZE_POINT; } else if (transform_type == 1) { size += NODE_SIZE_MATRIX; } else { g_assert_not_reached(); } n_children = 1; break; case BROADWAY_NODE_LINEAR_GRADIENT: size = NODE_SIZE_RECT + 2 * NODE_SIZE_POINT; n_stops = data[*pos + size++]; size += n_stops * NODE_SIZE_COLOR_STOP; break; case BROADWAY_NODE_SHADOW: size = 1; n_shadows = data[*pos]; size += n_shadows * NODE_SIZE_SHADOW; n_children = 1; break; case BROADWAY_NODE_OPACITY: size = NODE_SIZE_FLOAT; n_children = 1; break; case BROADWAY_NODE_DEBUG: n_chars = data[*pos]; size = 1 + (n_chars + 3) / 4; n_children = 1; break; default: g_assert_not_reached (); } node = g_malloc (sizeof(BroadwayNode) + (size - 1) * sizeof(guint32) + n_children * sizeof (BroadwayNode *)); g_ref_count_init (&node->refcount); node->type = type; node->id = id; node->output_id = id; node->texture_id = 0; node->n_children = n_children; node->children = (BroadwayNode **)((char *)node + sizeof(BroadwayNode) + (size - 1) * sizeof(guint32)); node->n_data = size; for (i = 0; i < size; i++) { node->data[i] = data[(*pos)++]; if (i == texture_offset) { node->texture_id = GPOINTER_TO_INT (g_hash_table_lookup (client_texture_map, GINT_TO_POINTER (node->data[i]))); broadway_server_ref_texture (server, node->texture_id); node->data[i] = node->texture_id; } } for (i = 0; i < n_children; i++) node->children[i] = decode_nodes (server, surface, len, data, client_texture_map, pos); hash = node->type << 16; for (i = 0; i < size; i++) hash ^= rotl (node->data[i], i); for (i = 0; i < n_children; i++) hash ^= rotl (node->children[i]->hash, i); node->hash = hash; return node; } /* passes ownership of nodes */ void broadway_server_surface_update_nodes (BroadwayServer *server, int id, guint32 data[], int len, GHashTable *client_texture_map) { BroadwaySurface *surface; int pos = 0; BroadwayNode *root; surface = broadway_server_lookup_surface (server, id); if (surface == NULL) return; root = decode_nodes (server, surface, len, data, client_texture_map, &pos); if (server->output != NULL) broadway_output_surface_set_nodes (server->output, surface->id, root, surface->nodes, surface->node_lookup); if (surface->nodes) broadway_node_unref (server, surface->nodes); surface->nodes = root; g_hash_table_remove_all (surface->node_lookup); broadway_node_add_to_lookup (root, surface->node_lookup); } guint32 broadway_server_upload_texture (BroadwayServer *server, GBytes *bytes) { BroadwayTexture *texture; texture = g_new0 (BroadwayTexture, 1); g_ref_count_init (&texture->refcount); texture->id = ++server->next_texture_id; texture->bytes = g_bytes_ref (bytes); g_hash_table_replace (server->textures, GINT_TO_POINTER (texture->id), texture); if (server->output) broadway_output_upload_texture (server->output, texture->id, texture->bytes); return texture->id; } static void broadway_server_ref_texture (BroadwayServer *server, guint32 id) { BroadwayTexture *texture; texture = g_hash_table_lookup (server->textures, GINT_TO_POINTER (id)); if (texture) g_ref_count_inc (&texture->refcount); } void broadway_server_release_texture (BroadwayServer *server, guint32 id) { BroadwayTexture *texture; texture = g_hash_table_lookup (server->textures, GINT_TO_POINTER (id)); if (texture && g_ref_count_dec (&texture->refcount)) { g_hash_table_remove (server->textures, GINT_TO_POINTER (id)); if (server->output) broadway_output_release_texture (server->output, id); } } gboolean broadway_server_surface_move_resize (BroadwayServer *server, int id, gboolean with_move, int x, int y, int width, int height) { BroadwaySurface *surface; gboolean with_resize; gboolean sent = FALSE; surface = broadway_server_lookup_surface (server, id); if (surface == NULL) return FALSE; with_resize = width != surface->width || height != surface->height; surface->width = width; surface->height = height; if (server->output != NULL) { broadway_output_move_resize_surface (server->output, surface->id, with_move, x, y, with_resize, surface->width, surface->height); sent = TRUE; } else { if (with_move) { surface->x = x; surface->y = y; } fake_configure_notify (server, surface); } return sent; } void broadway_server_focus_surface (BroadwayServer *server, int new_focused_surface) { BroadwayInputMsg focus_msg; if (server->focused_surface_id == new_focused_surface) return; memset (&focus_msg, 0, sizeof (focus_msg)); focus_msg.base.type = BROADWAY_EVENT_FOCUS; focus_msg.base.time = broadway_server_get_last_seen_time (server); focus_msg.focus.old_id = server->focused_surface_id; focus_msg.focus.new_id = new_focused_surface; broadway_events_got_input (&focus_msg, -1); /* Keep track of the new focused surface */ server->focused_surface_id = new_focused_surface; } guint32 broadway_server_grab_pointer (BroadwayServer *server, int client_id, int id, gboolean owner_events, guint32 event_mask, guint32 time_) { if (server->pointer_grab_surface_id != -1 && time_ != 0 && server->pointer_grab_time > time_) return GDK_GRAB_ALREADY_GRABBED; if (time_ == 0) time_ = server->last_seen_time; server->pointer_grab_surface_id = id; server->pointer_grab_client_id = client_id; server->pointer_grab_owner_events = owner_events; server->pointer_grab_time = time_; if (server->output) { broadway_output_grab_pointer (server->output, id, owner_events); broadway_server_flush (server); } /* TODO: What about surface grab events if we're not connected? */ return GDK_GRAB_SUCCESS; } guint32 broadway_server_ungrab_pointer (BroadwayServer *server, guint32 time_) { guint32 serial; if (server->pointer_grab_surface_id != -1 && time_ != 0 && server->pointer_grab_time > time_) return 0; /* TODO: What about surface grab events if we're not connected? */ if (server->output) { serial = broadway_output_ungrab_pointer (server->output); broadway_server_flush (server); } else { serial = server->saved_serial; } server->pointer_grab_surface_id = -1; return serial; } guint32 broadway_server_new_surface (BroadwayServer *server, guint32 client, int x, int y, int width, int height) { BroadwaySurface *surface; surface = g_new0 (BroadwaySurface, 1); surface->owner = client; surface->id = server->id_counter++; surface->x = x; surface->y = y; surface->width = width; surface->height = height; surface->node_lookup = g_hash_table_new (g_direct_hash, g_direct_equal); g_hash_table_insert (server->surface_id_hash, GINT_TO_POINTER (surface->id), surface); server->surfaces = g_list_append (server->surfaces, surface); if (server->output) broadway_output_new_surface (server->output, surface->id, surface->x, surface->y, surface->width, surface->height); else fake_configure_notify (server, surface); return surface->id; } static void broadway_server_resync_surfaces (BroadwayServer *server) { GHashTableIter iter; gpointer key, value; GList *l; if (server->output == NULL) return; /* First upload all textures */ g_hash_table_iter_init (&iter, server->textures); while (g_hash_table_iter_next (&iter, &key, &value)) { BroadwayTexture *texture = value; broadway_output_upload_texture (server->output, GPOINTER_TO_INT (key), texture->bytes); } /* Then create all surfaces */ for (l = server->surfaces; l != NULL; l = l->next) { BroadwaySurface *surface = l->data; if (surface->id == 0) continue; /* Skip root */ broadway_output_new_surface (server->output, surface->id, surface->x, surface->y, surface->width, surface->height); } /* Then do everything that may reference other surfaces */ for (l = server->surfaces; l != NULL; l = l->next) { BroadwaySurface *surface = l->data; if (surface->id == 0) continue; /* Skip root */ if (surface->transient_for != -1) broadway_output_set_transient_for (server->output, surface->id, surface->transient_for); if (surface->nodes) broadway_output_surface_set_nodes (server->output, surface->id, surface->nodes, NULL, NULL); if (surface->visible) broadway_output_show_surface (server->output, surface->id); } if (server->show_keyboard) broadway_output_set_show_keyboard (server->output, TRUE); broadway_server_flush (server); }