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path: root/src/plugins/qmldesigner/designercore/imagecache/imagecachecollector.cpp
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/****************************************************************************
**
** Copyright (C) 2020 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt Creator.
**
** 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 General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** 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-3.0.html.
**
****************************************************************************/

#include "imagecachecollector.h"
#include "imagecacheconnectionmanager.h"

#include <metainfo.h>
#include <model.h>
#include <nodeinstanceview.h>
#include <plaintexteditmodifier.h>
#include <rewriterview.h>

#include <projectexplorer/project.h>
#include <projectexplorer/target.h>
#include <utils/fileutils.h>

#include <QPlainTextEdit>

namespace QmlDesigner {

namespace {

QByteArray fileToByteArray(QString const &filename)
{
    QFile file(filename);
    QFileInfo fleInfo(file);

    if (fleInfo.exists() && file.open(QFile::ReadOnly))
        return file.readAll();

    return {};
}

QString fileToString(const QString &filename)
{
    return QString::fromUtf8(fileToByteArray(filename));
}

} // namespace

ImageCacheCollector::ImageCacheCollector(ImageCacheConnectionManager &connectionManager)
    : m_connectionManager{connectionManager}
{}

ImageCacheCollector::~ImageCacheCollector() = default;

void ImageCacheCollector::start(Utils::SmallStringView name,
                                CaptureCallback captureCallback,
                                AbortCallback abortCallback)
{
    RewriterView rewriterView{RewriterView::Amend, nullptr};
    NodeInstanceView nodeInstanceView{m_connectionManager};

    const QString filePath{name};
    std::unique_ptr<Model> model{QmlDesigner::Model::create("QtQuick/Item", 2, 1)};
    model->setFileUrl(QUrl::fromLocalFile(filePath));

    auto textDocument = std::make_unique<QTextDocument>(fileToString(filePath));

    auto modifier = std::make_unique<NotIndentingTextEditModifier>(textDocument.get(),
                                                                   QTextCursor{textDocument.get()});

    rewriterView.setTextModifier(modifier.get());

    model->setRewriterView(&rewriterView);

    if (rewriterView.inErrorState() || !rewriterView.rootModelNode().metaInfo().isGraphicalItem()) {
        abortCallback();
        return;
    }

    m_connectionManager.setCallback(std::move(captureCallback));

    nodeInstanceView.setTarget(m_target.get());
    nodeInstanceView.setCrashCallback(abortCallback);
    model->setNodeInstanceView(&nodeInstanceView);

    bool capturedDataArrived = m_connectionManager.waitForCapturedData();

    m_connectionManager.setCallback({});
    m_connectionManager.setCrashCallback({});

    model->setNodeInstanceView({});
    model->setRewriterView({});

    if (!capturedDataArrived)
        abortCallback();
}

void ImageCacheCollector::setTarget(std::unique_ptr<ProjectExplorer::Target> target)
{
    m_target = std::move(target);
}

} // namespace QmlDesigner