framework/source/accelerators/acceleratorcache.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
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   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include <accelerators/acceleratorcache.hxx>
  21
  22 #include <com/sun/star/container/NoSuchElementException.hpp>
  23
  24 #include <vcl/svapp.hxx>
  25
  26 namespace framework
  27 {
  28 bool AcceleratorCache::hasKey(const css::awt::KeyEvent& aKey) const
  29 {
  30     return (m_lKey2Commands.find(aKey) != m_lKey2Commands.end());
  31 }
  32
  33 bool AcceleratorCache::hasCommand(const OUString& sCommand) const
  34 {
  35     return (m_lCommand2Keys.find(sCommand) != m_lCommand2Keys.end());
  36 }
  37
  38 AcceleratorCache::TKeyList AcceleratorCache::getAllKeys() const
  39 {
  40     TKeyList lKeys;
  41     lKeys.reserve(m_lKey2Commands.size());
  42
  43     for (auto const& key2Command : m_lKey2Commands)
  44     {
  45         lKeys.push_back(key2Command.first);
  46     }
  47
  48     return lKeys;
  49 }
  50
  51 void AcceleratorCache::setKeyCommandPair(const css::awt::KeyEvent& aKey, const OUString& sCommand)
  52 {
  53     // register command for the specified key
  54     m_lKey2Commands[aKey] = sCommand;
  55
  56     // update optimized structure to bind multiple keys to one command
  57     TKeyList& rKeyList = m_lCommand2Keys[sCommand];
  58     rKeyList.push_back(aKey);
  59 }
  60
  61 AcceleratorCache::TKeyList AcceleratorCache::getKeysByCommand(const OUString& sCommand) const
  62 {
  63     TCommand2Keys::const_iterator pCommand = m_lCommand2Keys.find(sCommand);
  64     if (pCommand == m_lCommand2Keys.end())
  65         throw css::container::NoSuchElementException();
  66     return pCommand->second;
  67 }
  68
  69 OUString AcceleratorCache::getCommandByKey(const css::awt::KeyEvent& aKey) const
  70 {
  71     TKey2Commands::const_iterator pKey = m_lKey2Commands.find(aKey);
  72     if (pKey == m_lKey2Commands.end())
  73         throw css::container::NoSuchElementException();
  74     return pKey->second;
  75 }
  76
  77 void AcceleratorCache::removeKey(const css::awt::KeyEvent& aKey)
  78 {
  79     // check if key exists
  80     TKey2Commands::const_iterator pKey = m_lKey2Commands.find(aKey);
  81     if (pKey == m_lKey2Commands.end())
  82         return;
  83
  84     // get its registered command
  85     // Because we must know its place inside the optimized
  86     // structure, which bind keys to commands, too!
  87     OUString sCommand = pKey->second;
  88     pKey = m_lKey2Commands.end(); // nobody should use an undefined value .-)
  89
  90     // remove key from primary list
  91     m_lKey2Commands.erase(aKey);
  92
  93     // get keylist for that command
  94     TCommand2Keys::iterator pCommand = m_lCommand2Keys.find(sCommand);
  95     if (pCommand == m_lCommand2Keys.end())
  96         return;
  97     TKeyList& lKeys = pCommand->second;
  98
  99     // one or more keys assign
 100     if (lKeys.size() == 1)
 101         // remove key from optimized command list
 102         m_lCommand2Keys.erase(sCommand);
 103     else // only remove this key from the keylist
 104     {
 105         auto pKeys = ::std::find(lKeys.begin(), lKeys.end(), aKey);
 106
 107         if (pKeys != lKeys.end())
 108             lKeys.erase(pKeys);
 109     }
 110 }
 111
 112 void AcceleratorCache::removeCommand(const OUString& sCommand)
 113 {
 114     const TKeyList& lKeys = getKeysByCommand(sCommand);
 115     for (auto const& lKey : lKeys)
 116     {
 117         removeKey(lKey);
 118     }
 119 }
 120
 121 } // namespace framework
 122
 123 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */