[PATCH 3/5] server: Queue a hardware WM_WINE_CLIPCURSOR message to the foreground thread.

[Rémi Bernon]

From: Rémi Bernon

When applying a new cursor clipping rect, or to the previous foreground
thread when foreground changes, to notify it of the cursor clipping rect
being reset.
---
 server/queue.c | 28 +++++++++++++++++++++++++---
 server/user.h  |  2 +-
 2 files changed, 26 insertions(+), 4 deletions(-)

diff --git a/server/queue.c b/server/queue.c
index a376d7ab43f..b35f20917bd 100644
--- a/server/queue.c
+++ b/server/queue.c
@@ -449,8 +449,25 @@ static void get_message_defaults( struct msg_queue *queue, int *x, int *y, unsig
     *time = get_tick_count();
 }

+static void queue_clip_cursor_msg( struct desktop *desktop, lparam_t wparam, lparam_t lparam )
+{
+    static const struct hw_msg_source source = { IMDT_UNAVAILABLE, IMO_SYSTEM };
+    struct thread_input *input;
+    struct message *msg;
+
+    if (!(msg = alloc_hardware_message( 0, source, get_tick_count(), 0 ))) return;
+
+    msg->msg = WM_WINE_CLIPCURSOR;
+    msg->wparam = wparam;
+    msg->lparam = lparam;
+    msg->x = desktop->cursor.x;
+    msg->y = desktop->cursor.y;
+    if ((input = desktop->foreground_input)) msg->win = input->active;
+    queue_hardware_message( desktop, msg, 1 );
+}
+
 /* set the cursor clip rectangle */
-void set_clip_rectangle( struct desktop *desktop, const rectangle_t *rect, int send_clip_msg )
+void set_clip_rectangle( struct desktop *desktop, const rectangle_t *rect, int reset )
 {
     rectangle_t top_rect;
     int x, y;
@@ -468,12 +485,16 @@ void set_clip_rectangle( struct desktop *desktop, const rectangle_t *rect, int s
     }
     else desktop->cursor.clip = top_rect;

-    if (send_clip_msg) post_desktop_message( desktop, WM_WINE_CLIPCURSOR, rect == NULL, 0 );
-
     /* warp the mouse to be inside the clip rect */
     x = max( min( desktop->cursor.x, desktop->cursor.clip.right - 1 ), desktop->cursor.clip.left );
     y = max( min( desktop->cursor.y, desktop->cursor.clip.bottom - 1 ), desktop->cursor.clip.top );
     if (x != desktop->cursor.x || y != desktop->cursor.y) set_cursor_pos( desktop, x, y );
+
+    /* request clip cursor rectangle reset to the desktop thread */
+    if (reset) post_desktop_message( desktop, WM_WINE_CLIPCURSOR, TRUE, FALSE );
+
+    /* notify foreground thread, of reset, or to apply new cursor clipping rect */
+    queue_clip_cursor_msg( desktop, rect == NULL, reset );
 }

/* change the foreground input and reset the cursor clip rect */
@@ -558,6 +579,7 @@ static inline int get_hardware_msg_bit( struct message *msg )
     if (msg->msg == WM_INPUT_DEVICE_CHANGE || msg->msg == WM_INPUT) return QS_RAWINPUT;
     if (msg->msg == WM_MOUSEMOVE || msg->msg == WM_NCMOUSEMOVE) return QS_MOUSEMOVE;
     if (msg->msg >= WM_KEYFIRST && msg->msg <= WM_KEYLAST) return QS_KEY;
+    if (msg->msg == WM_WINE_CLIPCURSOR) return QS_RAWINPUT;
     return QS_MOUSEBUTTON;
 }

diff --git a/server/user.h b/server/user.h
index dde7a3308d7..a18c94ec89d 100644
--- a/server/user.h
+++ b/server/user.h
@@ -109,7 +109,7 @@ extern void queue_cleanup_window( struct thread *thread, user_handle_t win );
 extern int init_thread_queue( struct thread *thread );
 extern int attach_thread_input( struct thread *thread_from, struct thread *thread_to );
 extern void detach_thread_input( struct thread *thread_from );
-extern void set_clip_rectangle( struct desktop *desktop, const rectangle_t *rect, int send_clip_msg );
+extern void set_clip_rectangle( struct desktop *desktop, const rectangle_t *rect, int reset );
 extern void post_message( user_handle_t win, unsigned int message,
                           lparam_t wparam, lparam_t lparam );
 extern void send_notify_message( user_handle_t win, unsigned int message,