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/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the Qt Messaging Framework.
**
** $QT_BEGIN_LICENSE:LGPL21$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** As a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "serviceactionqueue.h"
// Auto executing queue of service actions
ServiceActionQueue::ServiceActionQueue()
:_running(false)
{
QObject::connect(&_timer, SIGNAL(timeout()), this, SLOT(executeNextCommand()));
}
// Takes ownership of *command.
void ServiceActionQueue::append(ServiceActionCommand *command)
{
_commands.append(command);
if (!_running) {
_timer.start(0);
}
}
void ServiceActionQueue::executeNextCommand()
{
_timer.stop();
if (_running) {
return;
}
if (_commands.isEmpty()) {
return;
}
_running = true;
ServiceActionCommand *command(_commands.first());
QObject::connect(command->action(), SIGNAL(activityChanged(QMailServiceAction::Activity)),
this, SLOT(activityChanged(QMailServiceAction::Activity)));
command->execute();
}
void ServiceActionQueue::activityChanged(QMailServiceAction::Activity activity)
{
if ((activity == QMailServiceAction::Successful) ||
(activity == QMailServiceAction::Failed)) {
delete _commands.takeFirst();
_running = false;
_timer.start(0);
}
}
void ServiceActionQueue::clear()
{
for (int i = 0; i < _commands.size(); ++i) {
delete _commands.takeFirst();
++i;
}
_commands.clear();
_timer.stop();
_running = false;
}
// Command pattern definitions for various service action classes
ExportUpdatesCommand::ExportUpdatesCommand(const QMailAccountId &accountId)
{
_action = QPointer<QMailServiceAction>(new QMailRetrievalAction()); _accountId = accountId;
}
void ExportUpdatesCommand::execute()
{
static_cast<QMailRetrievalAction*>(_action.data())->exportUpdates(_accountId);
}
RetrieveFolderListCommand::RetrieveFolderListCommand(const QMailAccountId &accountId, const QMailFolderId &folderId, bool descending)
{
_action = QPointer<QMailServiceAction>(new QMailRetrievalAction());
_accountId = accountId;
_folderId = folderId;
_descending = descending;
}
void RetrieveFolderListCommand::execute()
{
static_cast<QMailRetrievalAction*>(_action.data())->retrieveFolderList(_accountId, QMailFolderId());
}
RetrieveMessageListCommand::RetrieveMessageListCommand(const QMailAccountId &accountId, const QMailFolderId &folderId, uint minimum, const QMailMessageSortKey &sort)
{
_action = QPointer<QMailServiceAction>(new QMailRetrievalAction());
_accountId = accountId;
_folderId = folderId;
_minimum = minimum;
_sort = sort;
}
void RetrieveMessageListCommand::execute()
{
static_cast<QMailRetrievalAction*>(_action.data())->retrieveMessageList(_accountId, _folderId, _minimum, _sort);
}
RetrieveMessageListsCommand::RetrieveMessageListsCommand(const QMailAccountId &accountId, const QMailFolderIdList &folderIds, uint minimum, const QMailMessageSortKey &sort)
{
_action = QPointer<QMailServiceAction>(new QMailRetrievalAction());
_accountId = accountId;
_folderIds = folderIds;
_minimum = minimum;
_sort = sort;
}
void RetrieveMessageListsCommand::execute()
{
static_cast<QMailRetrievalAction*>(_action.data())->retrieveMessageLists(_accountId, _folderIds, _minimum, _sort);
}
RetrieveNewMessagesCommand::RetrieveNewMessagesCommand(const QMailAccountId &accountId, const QMailFolderIdList &folderIds)
{
_action = QPointer<QMailServiceAction>(new QMailRetrievalAction());
_accountId = accountId;
_folderIds = folderIds;
}
void RetrieveNewMessagesCommand::execute()
{
static_cast<QMailRetrievalAction*>(_action.data())->retrieveNewMessages(_accountId, _folderIds);
}
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