File: networkreplywidget.cpp

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/*
  networkreplywidget.cpp

  This file is part of GammaRay, the Qt application inspection and manipulation tool.

  SPDX-FileCopyrightText: 2019 Klarälvdalens Datakonsult AB, a KDAB Group company <info@kdab.com>
  Author: Volker Krause <volker.krause@kdab.com>

  SPDX-License-Identifier: GPL-2.0-or-later

  Contact KDAB at <info@kdab.com> for commercial licensing options.
*/

#include "networkreplywidget.h"
#include "clientnetworkreplymodel.h"
#include "networkreplymodeldefs.h"
#include "ui_networkreplywidget.h"
#include "networksupportclient.h"

#include <ui/contextmenuextension.h>

#include <common/objectbroker.h>

#include <QClipboard>
#include <QGuiApplication>
#include <QMenu>
#include <QPlainTextEdit>
#include <QJsonDocument>
#include <QBuffer>
#include <QXmlStreamReader>
#include <QLabel>
#include <QStringDecoder>

using namespace GammaRay;

static QObject *createClientNetworkSupportInterface(const QString & /*name*/, QObject *parent)
{
    return new NetworkSupportClient(parent);
}

NetworkReplyWidget::NetworkReplyWidget(QWidget *parent)
    : QWidget(parent)
    , ui(new Ui::NetworkReplyWidget)
{
    ui->setupUi(this);

    ObjectBroker::registerClientObjectFactoryCallback<NetworkSupportInterface *>(
        createClientNetworkSupportInterface);
    auto interface = ObjectBroker::object<NetworkSupportInterface *>();

    auto srcModel = ObjectBroker::model(QStringLiteral("com.kdab.GammaRay.NetworkReplyModel"));
    auto proxy = new ClientNetworkReplyModel(this);
    proxy->setSourceModel(srcModel);
    ui->replyView->setModel(proxy);
    ui->replyView->header()->setSectionResizeMode(QHeaderView::ResizeToContents);
    ui->replyView->expandAll();

    // auto-expand parents of new replies
    connect(proxy, &QAbstractItemModel::rowsInserted, this, [this](const QModelIndex &parent, int, int) {
        if (!parent.isValid()) {
            return;
        }
        ui->replyView->expand(parent);
    });

    connect(ui->replyView, &QWidget::customContextMenuRequested, this, &NetworkReplyWidget::contextMenu);
    connect(ui->replyView->selectionModel(), &QItemSelectionModel::currentChanged, this, [this](const QModelIndex &current, const QModelIndex &) {
        const auto objColumn = current.sibling(current.row(), NetworkReplyModelColumn::ObjectColumn);
        auto response = objColumn.data(NetworkReplyModelRole::ReplyResponseRole).toByteArray();
        const auto contentType = ( NetworkReply::ContentType )objColumn.data(NetworkReplyModelRole::ReplyContentType).toInt();

        ui->imageLabel->clear();

        switch (contentType) {
        case NetworkReply::Json:
            response = QJsonDocument::fromJson(response).toJson(QJsonDocument::JsonFormat::Indented);
            break;
        case NetworkReply::Xml: {
            QXmlStreamReader reader(response);

            QByteArray formattedResponse;
            QXmlStreamWriter writer(&formattedResponse);
            writer.setAutoFormatting(true);

            while (!reader.atEnd()) {
                reader.readNext();
                if (reader.isWhitespace()) {
                    continue;
                }

                writer.writeCurrentToken(reader);
            }

            if (reader.hasError()) {
                qWarning() << "Error while parsing XML:" << reader.errorString();
                break;
            }

            response.swap(formattedResponse);
            break;
        }
        case NetworkReply::Image:
            ui->imageLabel->setPixmap(QPixmap::fromImage(QImage::fromData(response)));
            response.clear();
            break;
        default:
            break;
        }

        QStringDecoder decoder(QStringDecoder::Utf8);
        QByteArrayView bav(response.constData(), response.size());
        const QString text = decoder.decode(bav);
        if (!decoder.hasError()) {
            ui->responseTextEdit->setPlainText(text);
        }
    });
    ui->responseTextEdit->setFont(QFontDatabase::systemFont(QFontDatabase::FixedFont));
    connect(ui->responseTextEdit, &QPlainTextEdit::textChanged, this, [this]() {
        ui->responseTextEdit->setVisible(!ui->responseTextEdit->toPlainText().isEmpty());
    });
    connect(ui->captureResponse, &QCheckBox::toggled, interface, [interface](bool checked) {
        interface->setProperty("captureResponse", checked);
    });
}

NetworkReplyWidget::~NetworkReplyWidget() = default;

void NetworkReplyWidget::contextMenu(QPoint pos)
{
    const auto index = ui->replyView->indexAt(pos);
    if (!index.isValid())
        return;

    const auto objectId = index.sibling(index.row(), NetworkReplyModelColumn::ObjectColumn).data(NetworkReplyModelRole::ObjectIdRole).value<ObjectId>();
    const auto url = index.sibling(index.row(), NetworkReplyModelColumn::UrlColumn).data(Qt::DisplayRole).toString();

    QMenu menu;
    if (!url.isEmpty()) {
        auto action = menu.addAction(QIcon::fromTheme(QStringLiteral("edit-copy")), tr("Copy URL"));
        connect(action, &QAction::triggered, this, [url]() {
            QGuiApplication::clipboard()->setText(url);
        });
        menu.addSeparator();
    }

    ContextMenuExtension ext(objectId);
    ext.populateMenu(&menu);
    menu.exec(ui->replyView->viewport()->mapToGlobal(pos));
}