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Diffstat (limited to 'src/imports/scxmlstatemachine/statemachineloader.cpp')
| -rw-r--r-- | src/imports/scxmlstatemachine/statemachineloader.cpp | 203 |
1 files changed, 0 insertions, 203 deletions
diff --git a/src/imports/scxmlstatemachine/statemachineloader.cpp b/src/imports/scxmlstatemachine/statemachineloader.cpp deleted file mode 100644 index 1d312a5..0000000 --- a/src/imports/scxmlstatemachine/statemachineloader.cpp +++ /dev/null @@ -1,203 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the QtScxml module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** 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 https://www.qt.io/terms-conditions. For further -** information use the contact form at https://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 3 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL3 included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 3 requirements -** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 2.0 or (at your option) the GNU General -** Public license version 3 or any later version approved by the KDE Free -** Qt Foundation. The licenses are as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -** included in the packaging of this file. Please review the following -** information to ensure the GNU General Public License requirements will -** be met: https://www.gnu.org/licenses/gpl-2.0.html and -** https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "statemachineloader_p.h" - -#include <QtScxml/qscxmlstatemachine.h> -#include <qqmlcontext.h> -#include <qqmlengine.h> -#include <qqmlinfo.h> -#include <qqmlfile.h> -#include <qbuffer.h> - -/*! - \qmltype StateMachineLoader - \instantiates QScxmlStateMachineLoader - \inqmlmodule QtScxml - - \brief Dynamically loads an SCXML document and instantiates the state machine. - - \since QtScxml 5.7 - */ - -QScxmlStateMachineLoader::QScxmlStateMachineLoader(QObject *parent) - : QObject(parent) - , m_dataModel(nullptr) - , m_implicitDataModel(nullptr) - , m_stateMachine(nullptr) -{ -} - -/*! - \qmlproperty ScxmlStateMachine StateMachineLoader::stateMachine - - The state machine instance. - */ -QT_PREPEND_NAMESPACE(QScxmlStateMachine) *QScxmlStateMachineLoader::stateMachine() const -{ - return m_stateMachine; -} - -/*! - \qmlproperty url StateMachineLoader::source - - The URL of the SCXML document to load. Only synchronously accessible URLs - are supported. - */ -QUrl QScxmlStateMachineLoader::source() -{ - return m_source; -} - -void QScxmlStateMachineLoader::setSource(const QUrl &source) -{ - if (!source.isValid()) - return; - - QUrl oldSource = m_source; - if (m_stateMachine) { - delete m_stateMachine; - m_stateMachine = nullptr; - m_implicitDataModel = nullptr; - } - - if (parse(source)) { - m_source = source; - emit sourceChanged(); - } else { - m_source.clear(); - if (!oldSource.isEmpty()) { - emit sourceChanged(); - } - } -} - -QVariantMap QScxmlStateMachineLoader::initialValues() const -{ - return m_initialValues; -} - -void QScxmlStateMachineLoader::setInitialValues(const QVariantMap &initialValues) -{ - if (initialValues != m_initialValues) { - m_initialValues = initialValues; - if (m_stateMachine) - m_stateMachine->setInitialValues(initialValues); - emit initialValuesChanged(); - } -} - -QScxmlDataModel *QScxmlStateMachineLoader::dataModel() const -{ - return m_dataModel; -} - -void QScxmlStateMachineLoader::setDataModel(QScxmlDataModel *dataModel) -{ - if (dataModel != m_dataModel) { - m_dataModel = dataModel; - if (m_stateMachine) { - if (dataModel) - m_stateMachine->setDataModel(dataModel); - else - m_stateMachine->setDataModel(m_implicitDataModel); - } - emit dataModelChanged(); - } -} - -bool QScxmlStateMachineLoader::parse(const QUrl &source) -{ - if (!QQmlFile::isSynchronous(source)) { - qmlWarning(this) << QStringLiteral("Cannot open '%1' for reading: only synchronous access is supported.") - .arg(source.url()); - return false; - } - QQmlFile scxmlFile(QQmlEngine::contextForObject(this)->engine(), source); - if (scxmlFile.isError()) { - // the synchronous case can only fail when the file is not found (or not readable). - qmlWarning(this) << QStringLiteral("Cannot open '%1' for reading.").arg(source.url()); - return false; - } - - QByteArray data(scxmlFile.dataByteArray()); - QBuffer buf(&data); - if (!buf.open(QIODevice::ReadOnly)) { - qmlWarning(this) << QStringLiteral("Cannot open input buffer for reading"); - return false; - } - - QString fileName; - if (source.isLocalFile()) { - fileName = source.toLocalFile(); - } else if (source.scheme() == QStringLiteral("qrc")) { - fileName = ":" + source.path(); - } else { - qmlWarning(this) << QStringLiteral("%1 is neither a local nor a resource URL.") - .arg(source.url()) - << QStringLiteral("Invoking services by relative path will not work."); - } - - m_stateMachine = QScxmlStateMachine::fromData(&buf, fileName); - m_stateMachine->setParent(this); - m_implicitDataModel = m_stateMachine->dataModel(); - - if (m_stateMachine->parseErrors().isEmpty()) { - if (m_dataModel) - m_stateMachine->setDataModel(m_dataModel); - m_stateMachine->setInitialValues(m_initialValues); - emit stateMachineChanged(); - - // as this is deferred any pending property updates to m_dataModel and m_initialValues - // should still occur before start(). - QMetaObject::invokeMethod(m_stateMachine, "start", Qt::QueuedConnection); - return true; - } else { - qmlWarning(this) << QStringLiteral("Something went wrong while parsing '%1':") - .arg(source.url()) - << Qt::endl; - const auto errors = m_stateMachine->parseErrors(); - for (const QScxmlError &error : errors) { - qmlWarning(this) << error.toString(); - } - - emit stateMachineChanged(); - return false; - } -} |