GUAC-240: Associate Guacamole client with surface.

src/common/guac_surface.c

@@ -25,6 +25,7 @@
 #include "guac_surface.h"
 
 #include <cairo/cairo.h>
+#include <guacamole/client.h>
 #include <guacamole/layer.h>
 #include <guacamole/protocol.h>
 #include <guacamole/socket.h>
@@ -660,12 +661,14 @@ static void __guac_common_surface_transfer(guac_common_surface* src, int* sx, in
 
 }
 
-guac_common_surface* guac_common_surface_alloc(guac_socket* socket, const guac_layer* layer, int w, int h) {
+guac_common_surface* guac_common_surface_alloc(guac_client* client,
+        guac_socket* socket, const guac_layer* layer, int w, int h) {
 
     /* Init surface */
     guac_common_surface* surface = malloc(sizeof(guac_common_surface));
-    surface->layer = layer;
+    surface->client = client;
     surface->socket = socket;
+    surface->layer = layer;
     surface->width = w;
     surface->height = h;
     surface->dirty = 0;

src/common/guac_surface.h

@@ -27,6 +27,7 @@
 #include "guac_rect.h"
 
 #include <cairo/cairo.h>
+#include <guacamole/client.h>
 #include <guacamole/layer.h>
 #include <guacamole/protocol.h>
 #include <guacamole/socket.h>
@@ -65,6 +66,11 @@ typedef struct guac_common_surface {
      */
     const guac_layer* layer;
 
+    /**
+     * The client associated with this surface.
+     */
+    guac_client* client;
+
     /**
      * The socket to send instructions on when flushing.
      */
@@ -131,13 +137,26 @@ typedef struct guac_common_surface {
 /**
  * Allocates a new guac_common_surface, assigning it to the given layer.
  *
- * @param socket The socket to send instructions on when flushing.
- * @param layer The layer to associate with the new surface.
- * @param w The width of the surface.
- * @param h The height of the surface.
- * @return A newly-allocated guac_common_surface.
+ * @param client
+ *     The client associated with the given layer.
+ *
+ * @param socket
+ *     The socket to send instructions on when flushing.
+ *
+ * @param layer
+ *     The layer to associate with the new surface.
+ *
+ * @param w
+ *     The width of the surface.
+ *
+ * @param h
+ *     The height of the surface.
+ *
+ * @return
+ *     A newly-allocated guac_common_surface.
  */
-guac_common_surface* guac_common_surface_alloc(guac_socket* socket, const guac_layer* layer, int w, int h);
+guac_common_surface* guac_common_surface_alloc(guac_client* client,
+        guac_socket* socket, const guac_layer* layer, int w, int h);
 
 /**
  * Frees the given guac_common_surface. Beware that this will NOT free any

src/protocols/rdp/client.c

@@ -933,8 +933,9 @@ int guac_client_init(guac_client* client, int argc, char** argv) {
 #endif
 
     /* Create default surface */
-    guac_client_data->default_surface = guac_common_surface_alloc(client->socket, GUAC_DEFAULT_LAYER,
-                                                                  settings->width, settings->height);
+    guac_client_data->default_surface = guac_common_surface_alloc(client,
+            client->socket, GUAC_DEFAULT_LAYER,
+            settings->width, settings->height);
     guac_client_data->current_surface = guac_client_data->default_surface;
 
     /* Send connection name */

src/protocols/rdp/rdp_bitmap.c

@@ -50,7 +50,8 @@ void guac_rdp_cache_bitmap(rdpContext* context, rdpBitmap* bitmap) {
 
     /* Allocate surface */
     guac_layer* buffer = guac_client_alloc_buffer(client);
-    guac_common_surface* surface = guac_common_surface_alloc(socket, buffer, bitmap->width, bitmap->height);
+    guac_common_surface* surface = guac_common_surface_alloc(client, socket,
+            buffer, bitmap->width, bitmap->height);
 
     /* Cache image data if present */
     if (bitmap->data != NULL) {

src/protocols/vnc/client.c

@@ -549,8 +549,9 @@ int guac_client_init(guac_client* client, int argc, char** argv) {
     guac_protocol_send_name(client->socket, rfb_client->desktopName);
 
     /* Create default surface */
-    guac_client_data->default_surface = guac_common_surface_alloc(client->socket, GUAC_DEFAULT_LAYER,
-                                                                  rfb_client->width, rfb_client->height);
+    guac_client_data->default_surface = guac_common_surface_alloc(client,
+            client->socket, GUAC_DEFAULT_LAYER,
+            rfb_client->width, rfb_client->height);
     return 0;
 
 }

src/terminal/display.c

@@ -276,8 +276,8 @@ guac_terminal_display* guac_terminal_display_alloc(guac_client* client,
     /* Create default surface */
     display->display_layer = guac_client_alloc_layer(client);
     display->select_layer = guac_client_alloc_layer(client);
-    display->display_surface = guac_common_surface_alloc(client->socket,
-            display->display_layer, 0, 0);
+    display->display_surface = guac_common_surface_alloc(client,
+            client->socket, display->display_layer, 0, 0);
 
     /* Select layer is a child of the display layer */
     guac_protocol_send_move(client->socket, display->select_layer,