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 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you under the Apache
 *   License, Version 2.0 (the "License"); you may not use this file
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#include <accelerators/acceleratorcache.hxx>

#include <xml/acceleratorconfigurationreader.hxx>

#include <com/sun/star/container/ElementExistException.hpp>

#include <com/sun/star/container/NoSuchElementException.hpp>

#include <vcl/svapp.hxx>

namespace framework
{

AcceleratorCache::AcceleratorCache()
{
}

AcceleratorCache::AcceleratorCache(const AcceleratorCache& rCopy)
{
    m_lCommand2Keys = rCopy.m_lCommand2Keys;
    m_lKey2Commands = rCopy.m_lKey2Commands;
}

void AcceleratorCache::takeOver(const AcceleratorCache& rCopy)
{
    SolarMutexGuard g;
    m_lCommand2Keys = rCopy.m_lCommand2Keys;
    m_lKey2Commands = rCopy.m_lKey2Commands;
}

AcceleratorCache& AcceleratorCache::operator=(const AcceleratorCache& rCopy)
{
    takeOver(rCopy);
    return *this;
}

bool AcceleratorCache::hasKey(const css::awt::KeyEvent& aKey) const
{
    SolarMutexGuard g;
    return (m_lKey2Commands.find(aKey) != m_lKey2Commands.end());
}

bool AcceleratorCache::hasCommand(const OUString& sCommand) const
{
    SolarMutexGuard g;
    return (m_lCommand2Keys.find(sCommand) != m_lCommand2Keys.end());
}

AcceleratorCache::TKeyList AcceleratorCache::getAllKeys() const
{
    SolarMutexGuard g;
    TKeyList lKeys;
    lKeys.reserve(m_lKey2Commands.size());

    for (auto const& key2Command : m_lKey2Commands)
    {
        lKeys.push_back(key2Command.first);
    }

    return lKeys;
}

void AcceleratorCache::setKeyCommandPair(const css::awt::KeyEvent& aKey    ,
                                         const OUString&    sCommand)
{
    SolarMutexGuard g;

    // register command for the specified key
    m_lKey2Commands[aKey] = sCommand;

    // update optimized structure to bind multiple keys to one command
    TKeyList& rKeyList = m_lCommand2Keys[sCommand];
    rKeyList.push_back(aKey);
}

AcceleratorCache::TKeyList AcceleratorCache::getKeysByCommand(const OUString& sCommand) const
{
    SolarMutexGuard g;
    TCommand2Keys::const_iterator pCommand = m_lCommand2Keys.find(sCommand);
    if (pCommand == m_lCommand2Keys.end())
        throw css::container::NoSuchElementException();
    return pCommand->second;
}

OUString AcceleratorCache::getCommandByKey(const css::awt::KeyEvent& aKey) const
{
    SolarMutexGuard g;
    TKey2Commands::const_iterator pKey = m_lKey2Commands.find(aKey);
    if (pKey == m_lKey2Commands.end())
        throw css::container::NoSuchElementException();
    return pKey->second;
}

void AcceleratorCache::removeKey(const css::awt::KeyEvent& aKey)
{
    SolarMutexGuard g;

    // check if key exists
    TKey2Commands::const_iterator pKey = m_lKey2Commands.find(aKey);
    if (pKey == m_lKey2Commands.end())
        return;

    // get its registered command
    // Because we must know its place inside the optimized
    // structure, which bind keys to commands, too!
    OUString sCommand = pKey->second;
    pKey = m_lKey2Commands.end(); // nobody should use an undefined value .-)

    // remove key from primary list
    m_lKey2Commands.erase(aKey);

    // remove key from optimized command list
    m_lCommand2Keys.erase(sCommand);
}

void AcceleratorCache::removeCommand(const OUString& sCommand)
{
    SolarMutexGuard g;

    const TKeyList&                            lKeys = getKeysByCommand(sCommand);
    for (auto const& lKey : lKeys)
    {
        removeKey(lKey);
    }
    m_lCommand2Keys.erase(sCommand);
}

} // namespace framework

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