mirror of
https://github.com/kasmtech/KasmVNC.git
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94 lines
2.4 KiB
C++
94 lines
2.4 KiB
C++
/* Copyright (C) 2002-2005 RealVNC Ltd. All Rights Reserved.
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*
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* This is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This software is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this software; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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* USA.
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*/
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#include <stdio.h>
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#include <os/Mutex.h>
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#include <rfb/KeyRemapper.h>
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#include <rfb/Configuration.h>
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#include <rfb/LogWriter.h>
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using namespace rfb;
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static LogWriter vlog("KeyRemapper");
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KeyRemapper KeyRemapper::defInstance;
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KeyRemapper::KeyRemapper(const char* m)
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{
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mutex = new os::Mutex;
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setMapping(m);
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}
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KeyRemapper::~KeyRemapper()
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{
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delete mutex;
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}
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void KeyRemapper::setMapping(const char* m) {
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os::AutoMutex a(mutex);
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mapping.clear();
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while (m[0]) {
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int from, to;
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char bidi;
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const char* nextComma = strchr(m, ',');
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if (!nextComma)
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nextComma = m + strlen(m);
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if (sscanf(m, "0x%x%c>0x%x", &from,
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&bidi, &to) == 3) {
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if (bidi != '-' && bidi != '<')
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vlog.error("warning: unknown operation %c>, assuming ->", bidi);
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mapping[from] = to;
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if (bidi == '<')
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mapping[to] = from;
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} else {
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vlog.error("warning: bad mapping %.*s", (int)(nextComma-m), m);
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}
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m = nextComma;
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if (nextComma[0])
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m++;
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}
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}
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rdr::U32 KeyRemapper::remapKey(rdr::U32 key) const {
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os::AutoMutex a(mutex);
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std::map<rdr::U32,rdr::U32>::const_iterator i = mapping.find(key);
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if (i != mapping.end())
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return i->second;
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return key;
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}
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class KeyMapParameter : public StringParameter {
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public:
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KeyMapParameter()
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: StringParameter("RemapKeys", "Comma-separated list of incoming keysyms to remap. Mappings are expressed as two hex values, prefixed by 0x, and separated by ->", "") {
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setParam(value);
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}
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bool setParam(const char* v) {
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KeyRemapper::defInstance.setMapping(v);
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return StringParameter::setParam(v);
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}
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} defaultParam;
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