From f3f0900de98077209f6edf9d03315c64e63b57fc Mon Sep 17 00:00:00 2001
From: Michael Jumper <mike.jumper@guac-dev.org>
Date: Thu, 18 Jul 2013 11:54:22 -0700
Subject: [PATCH] Detect event interface, fix cliprdr.

---
 configure.ac                      | 26 ++++++++++++++++++++++++++
 src/protocols/rdp/guac_handlers.c | 17 +++++++++++++++--
 src/protocols/rdp/rdp_cliprdr.h   | 10 ++++++++--
 3 files changed, 49 insertions(+), 4 deletions(-)

diff --git a/configure.ac b/configure.ac
index ca607713..429650fd 100644
--- a/configure.ac
+++ b/configure.ac
@@ -218,6 +218,7 @@ have_freerdp=yes
 legacy_freerdp_extensions=no
 rdpsettings_interface=unknown
 freerdp_interface=unknown
+event_interface=unknown
 RDP_LIBS=
 
 # libfreerdp-cache
@@ -362,6 +363,31 @@ AC_COMPILE_IFELSE([AC_LANG_SOURCE([[#include <winpr/wtypes.h>
                                     rdpBitmap b = { .Decompress = __decompress };]])],,
                   [AC_DEFINE([LEGACY_RDPBITMAP])])
 
+#
+# FreeRDP: wMessage / RDP_EVENT
+#
+
+# Check for current (as of 1.1) wMessage interface
+AC_CHECK_MEMBERS([wMessage.id],
+                 [event_interface=stable],,
+                 [[#include <winpr/collections.h>]])
+
+# If not current, check for legacy (RDP_EVENT) interface
+if test "x${event_interface}" = "xunknown"
+then
+    AC_CHECK_MEMBERS([RDP_EVENT.event_class],
+                     [event_interface=legacy],,
+                     [[#include <freerdp/types.h>]])
+fi
+
+# Set defines based on interface type, warn if unknown
+if test "x${event_interface}" = "xlegacy"; then
+    AC_DEFINE([LEGACY_EVENT])
+elif test "x${event_interface}" = "xunknown"; then
+    have_freerdp=no
+fi
+
+
 AM_CONDITIONAL([LEGACY_FREERDP_EXTENSIONS], [test "x${legacy_freerdp_extensions}" = "xyes"])
 AM_CONDITIONAL([ENABLE_WINPR], [test "x${have_winpr}"   = "xyes"])
 AM_CONDITIONAL([ENABLE_RDP],   [test "x${have_freerdp}" = "xyes"])
diff --git a/src/protocols/rdp/guac_handlers.c b/src/protocols/rdp/guac_handlers.c
index f0dd244f..a0774512 100644
--- a/src/protocols/rdp/guac_handlers.c
+++ b/src/protocols/rdp/guac_handlers.c
@@ -118,7 +118,7 @@ int rdp_guac_client_handle_messages(guac_client* client) {
     int read_count = 0;
     int write_count = 0;
     fd_set rfds, wfds;
-    RDP_EVENT* event;
+    wMessage* event;
 
     struct timeval timeout = {
         .tv_sec = 0,
@@ -200,8 +200,13 @@ int rdp_guac_client_handle_messages(guac_client* client) {
     if (event) {
 
         /* Handle clipboard events */
+#ifdef LEGACY_EVENT
         if (event->event_class == RDP_EVENT_CLASS_CLIPRDR)
             guac_rdp_process_cliprdr_event(client, event);
+#else
+        if (GetMessageClass(event->id) == CliprdrChannel_Class)
+            guac_rdp_process_cliprdr_event(client, event);
+#endif
 
         freerdp_event_free(event);
 
@@ -422,11 +427,19 @@ int rdp_guac_client_clipboard_handler(guac_client* client, char* data) {
     rdpChannels* channels = 
         ((rdp_guac_client_data*) client->data)->rdp_inst->context->channels;
 
+#ifdef LEGACY_EVENT
     RDP_CB_FORMAT_LIST_EVENT* format_list =
         (RDP_CB_FORMAT_LIST_EVENT*) freerdp_event_new(
             RDP_EVENT_CLASS_CLIPRDR,
             RDP_EVENT_TYPE_CB_FORMAT_LIST,
             NULL, NULL);
+#else
+    RDP_CB_FORMAT_LIST_EVENT* format_list =
+        (RDP_CB_FORMAT_LIST_EVENT*) freerdp_event_new(
+            CliprdrChannel_Class,
+            CliprdrChannel_FormatList,
+            NULL, NULL);
+#endif
 
     /* Free existing data */
     free(((rdp_guac_client_data*) client->data)->clipboard);
@@ -439,7 +452,7 @@ int rdp_guac_client_clipboard_handler(guac_client* client, char* data) {
     format_list->formats[0] = CB_FORMAT_TEXT;
     format_list->num_formats = 1;
 
-    freerdp_channels_send_event(channels, (RDP_EVENT*) format_list);
+    freerdp_channels_send_event(channels, (wMessage*) format_list);
 
     return 0;
 
diff --git a/src/protocols/rdp/rdp_cliprdr.h b/src/protocols/rdp/rdp_cliprdr.h
index be838c4a..f33d7c7f 100644
--- a/src/protocols/rdp/rdp_cliprdr.h
+++ b/src/protocols/rdp/rdp_cliprdr.h
@@ -38,10 +38,16 @@
 #ifndef __GUAC_RDP_RDP_CLIPRDR_H
 #define __GUAC_RDP_RDP_CLIPRDR_H
 
+#ifdef ENABLE_WINPR
+#include <winpr/wtypes.h>
+#else
+#include "compat/winpr-wtypes.h"
+#endif
+
 #include <freerdp/freerdp.h>
 
-void guac_rdp_process_cliprdr_event(guac_client* client, RDP_EVENT* event);
-void guac_rdp_process_cb_monitor_ready(guac_client* client, RDP_EVENT* event);
+void guac_rdp_process_cliprdr_event(guac_client* client, wMessage* event);
+void guac_rdp_process_cb_monitor_ready(guac_client* client, wMessage* event);
 
 void guac_rdp_process_cb_format_list(guac_client* client,
         RDP_CB_FORMAT_LIST_EVENT* event);