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server: Use separate helper functions for setting and resetting clipboard windows.

This commit is contained in:
Alexandre Julliard 2015-06-03 18:37:16 +09:00
parent b7f79bae86
commit b8fac8adbf
1 changed files with 31 additions and 37 deletions
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68
server/clipboard.c
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@ -135,44 +135,51 @@ void cleanup_clipboard_thread(struct thread *thread)
release_object( winstation );
}
static int set_clipboard_window( struct clipboard *clipboard, user_handle_t win, int clear )
static int open_clipboard( struct clipboard *clipboard, user_handle_t win )
{
if (clipboard->open_thread && clipboard->open_thread != current)
{
set_error(STATUS_WAS_LOCKED);
return 0;
}
else if (!clear)
{
clipboard->open_win = win;
clipboard->open_thread = current;
}
else
{
clipboard->open_thread = NULL;
clipboard->open_win = 0;
}
clipboard->open_win = win;
clipboard->open_thread = current;
return 1;
}
static int close_clipboard( struct clipboard *clipboard )
{
if (clipboard->open_thread != current)
{
set_win32_error( ERROR_CLIPBOARD_NOT_OPEN );
return 0;
}
clipboard->open_thread = NULL;
clipboard->open_win = 0;
return 1;
}
static int set_clipboard_owner( struct clipboard *clipboard, user_handle_t win, int clear )
static int set_clipboard_owner( struct clipboard *clipboard, user_handle_t win )
{
if (clipboard->open_thread && clipboard->open_thread->process != current->process)
{
set_error(STATUS_WAS_LOCKED);
return 0;
}
else if (!clear)
clipboard->owner_win = win;
clipboard->owner_thread = current;
return 1;
}
static int release_clipboard_owner( struct clipboard *clipboard )
{
if (clipboard->open_thread && clipboard->open_thread->process != current->process)
{
clipboard->owner_win = win;
clipboard->owner_thread = current;
}
else
{
clipboard->owner_win = 0;
clipboard->owner_thread = NULL;
set_error(STATUS_WAS_LOCKED);
return 0;
}
clipboard->owner_win = 0;
clipboard->owner_thread = NULL;
return 1;
}
@ -200,33 +207,20 @@ DECL_HANDLER(set_clipboard_info)
if (req->flags & SET_CB_OPEN)
{
if (clipboard->open_thread)
{
/* clipboard already opened */
set_error(STATUS_WAS_LOCKED);
return;
}
if (!set_clipboard_window( clipboard, req->clipboard, 0 )) return;
if (!open_clipboard( clipboard, req->clipboard )) return;
}
else if (req->flags & SET_CB_CLOSE)
{
if (clipboard->open_thread != current)
{
set_win32_error(ERROR_CLIPBOARD_NOT_OPEN);
return;
}
if (!set_clipboard_window( clipboard, 0, 1 )) return;
if (!close_clipboard( clipboard )) return;
}
if (req->flags & SET_CB_OWNER)
{
if (!set_clipboard_owner( clipboard, req->owner, 0 )) return;
if (!set_clipboard_owner( clipboard, req->owner )) return;
}
else if (req->flags & SET_CB_RELOWNER)
{
if (!set_clipboard_owner( clipboard, 0, 1 )) return;
if (!release_clipboard_owner( clipboard )) return;
}
if (req->flags & SET_CB_VIEWER) clipboard->viewer = req->viewer;