broadway: Break out broadway protocol in its own header

gdk/broadway/broadway-protocol.h

@@ -0,0 +1,83 @@
+#ifndef __BROADWAY_PROTOCOL_H__
+#define __BROADWAY_PROTOCOL_H__
+
+#include <glib.h>
+
+typedef struct {
+  guint8 type;
+  guint32 serial;
+  guint64 time;
+} BroadwayInputBaseMsg;
+
+typedef struct {
+  BroadwayInputBaseMsg base;
+  guint32 mouse_window_id; /* The real window, not taking grabs into account */
+  guint32 event_window_id;
+  gint32 root_x;
+  gint32 root_y;
+  gint32 win_x;
+  gint32 win_y;
+  guint32 state;
+} BroadwayInputPointerMsg;
+
+typedef struct {
+  BroadwayInputPointerMsg pointer;
+  guint32 mode;
+} BroadwayInputCrossingMsg;
+
+typedef struct {
+  BroadwayInputPointerMsg pointer;
+  guint32 button;
+} BroadwayInputButtonMsg;
+
+typedef struct {
+  BroadwayInputPointerMsg pointer;
+  gint32 dir;
+} BroadwayInputScrollMsg;
+
+typedef struct {
+  BroadwayInputBaseMsg base;
+  guint32 mouse_window_id; /* The real window, not taking grabs into account */
+  guint32 state;
+  gint32 key;
+} BroadwayInputKeyMsg;
+
+typedef struct {
+  BroadwayInputBaseMsg base;
+  gint32 res;
+} BroadwayInputGrabReply;
+
+typedef struct {
+  BroadwayInputBaseMsg base;
+  gint32 id;
+  gint32 x;
+  gint32 y;
+  gint32 width;
+  gint32 height;
+} BroadwayInputConfigureNotify;
+
+typedef struct {
+  BroadwayInputBaseMsg base;
+  gint32 width;
+  gint32 height;
+} BroadwayInputScreenResizeNotify;
+
+typedef struct {
+  BroadwayInputBaseMsg base;
+  gint32 id;
+} BroadwayInputDeleteNotify;
+
+typedef union {
+  BroadwayInputBaseMsg base;
+  BroadwayInputPointerMsg pointer;
+  BroadwayInputCrossingMsg crossing;
+  BroadwayInputButtonMsg button;
+  BroadwayInputScrollMsg scroll;
+  BroadwayInputKeyMsg key;
+  BroadwayInputGrabReply grab_reply;
+  BroadwayInputConfigureNotify configure_notify;
+  BroadwayInputDeleteNotify delete_notify;
+  BroadwayInputScreenResizeNotify screen_resize_notify;
+} BroadwayInputMsg;
+
+#endif /* __BROADWAY_PROTOCOL_H__ */