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guarantee consistent KeyRelease behavior on all supported platform.

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X will send a KeyRelease after KeyPress even though the key is still
pressed.
This commit is contained in:
Jinhao 2016-05-11 07:41:59 +08:00
parent 28ec691485
commit 9f61e21c87
1 changed files with 14 additions and 2 deletions
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16
source/detail/x11/msg_dispatcher.hpp
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@ -1,6 +1,6 @@
/*
* Message Dispatcher Implementation
* Copyright(C) 2003-2013 Jinhao(cnjinhao@hotmail.com)
* Copyright(C) 2003-2016 Jinhao(cnjinhao@hotmail.com)
*
* Distributed under the Boost Software License, Version 1.0.
* (See accompanying file LICENSE_1_0.txt or copy at
@ -164,7 +164,7 @@ namespace detail
private:
void _m_msg_driver()
{
int fd_X11 = ConnectionNumber(display_);
const int fd_X11 = ConnectionNumber(display_);
msg_packet_tag msg_pack;
XEvent event;
@ -177,6 +177,18 @@ namespace detail
if(pending)
{
::XNextEvent(display_, &event);
if(KeyRelease == event.type)
{
//Check whether the key is pressed, because X will send KeyRelease when pressing and
//holding a key if auto repeat is on.
char keymap[32];
::XQueryKeymap(display_, keymap);
if(keymap[event.xkey.keycode / 8] & (1 << (event.xkey.keycode % 8)))
continue;
}
if(::XFilterEvent(&event, None))
continue;
}