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path: root/lib/downloads/widgets/downloaditemwidget.cpp
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/*
 * This file is part of smolbote. It's copyrighted by the contributors recorded
 * in the version control history of the file, available from its original
 * location: https://neueland.iserlohn-fortress.net/smolbote.hg
 *
 * SPDX-License-Identifier: GPL-3.0
 */

#include "downloaditemwidget.h"
#include "ui_downloaditemform.h"
#include <QStyle>
#include <QUrl>

DownloadItemWidget::DownloadItemWidget(QWebEngineDownloadItem *item, QWidget *parent)
    : QWidget(parent)
    , ui(new Ui::DownloadItemForm)
{
    Q_CHECK_PTR(item);
    this->item = item;
    ui->setupUi(this);
    {
        // pause/resume icons
        QIcon pauseIcon;
        pauseIcon.addPixmap(style()->standardPixmap(QStyle::SP_MediaPlay), QIcon::Normal, QIcon::Off);
        pauseIcon.addPixmap(style()->standardPixmap(QStyle::SP_MediaPause), QIcon::Normal, QIcon::On);
        ui->pause_toolButton->setIcon(pauseIcon);

        ui->abort_toolButton->setIcon(style()->standardIcon(QStyle::SP_MediaStop));
    }

    ui->url_label->setText(item->url().toString());
    ui->path_label->setText(item->path());

    connect(item, &QWebEngineDownloadItem::stateChanged, this, &DownloadItemWidget::updateState);
    connect(item, &QWebEngineDownloadItem::downloadProgress, this, &DownloadItemWidget::updateProgress);
    connect(item, &QWebEngineDownloadItem::finished, this, &DownloadItemWidget::updateFinished);

    connect(ui->abort_toolButton, &QToolButton::clicked, item, &QWebEngineDownloadItem::cancel);
    connect(ui->pause_toolButton, &QToolButton::clicked, item, [item](bool clicked) {
        if(clicked) {
            item->pause();
        } else {
            item->resume();
        }
    });
}

DownloadItemWidget::~DownloadItemWidget()
{
    delete ui;
}

QString DownloadItemWidget::sizeString(int size) const
{
    if(size < 1024) {
        return QString("%1 bytes").arg(size);
    }
    // KiB
    if(size < 1024 * 1024) {
        return QString("%1 kB").arg(size / 1024);
    }
    // MiB
    if(size < 1024 * 1024 * 1024) {
        return QString("%1 MB").arg(size / (1024 * 1024));
    }
    // GiB
    return QString("%1 GB").arg(size / (1024 * 1024 * 1024));
}

void DownloadItemWidget::updateState(QWebEngineDownloadItem::DownloadState state)
{
    switch(state) {
    case QWebEngineDownloadItem::DownloadRequested:
        ui->status_label->setText(tr("Requested"));
        ui->pause_toolButton->setEnabled(true);
        ui->abort_toolButton->setEnabled(true);
        break;
    case QWebEngineDownloadItem::DownloadInProgress:
        ui->status_label->setText(tr("In progress"));
        ui->pause_toolButton->setEnabled(true);
        ui->abort_toolButton->setEnabled(true);
        break;
    case QWebEngineDownloadItem::DownloadCompleted:
        ui->status_label->setText(tr("Completed"));
        ui->pause_toolButton->setEnabled(false);
        ui->abort_toolButton->setEnabled(false);
        break;
    case QWebEngineDownloadItem::DownloadCancelled:
        ui->status_label->setText(tr("Cancelled"));
        ui->pause_toolButton->setEnabled(false);
        ui->abort_toolButton->setEnabled(false);
        break;
    case QWebEngineDownloadItem::DownloadInterrupted:
        ui->status_label->setText(tr("Interrupted"));
        ui->pause_toolButton->setEnabled(false);
        ui->abort_toolButton->setEnabled(false);
        break;
    default:
        break;
    }
}

void DownloadItemWidget::updateProgress(qint64 value, qint64 total)
{
    ui->progressBar->setMaximum(total);
    ui->progressBar->setValue(value);
    ui->progressBar->setFormat(QString("%1 / %2").arg(sizeString(value), sizeString(total)));
}

void DownloadItemWidget::updateFinished()
{
    ui->progressBar->setValue(ui->progressBar->maximum());
    QString tooltip = "<table>"
                      "<tr>"
                      "<th>Preview</th>"
                      "<th>Information</th>"
                      "</tr>"
                      "<tr>"
                      "<td>%1</td>"
                      "<td>"
                      "<p><b>URL</b>: %2</p>"
                      "<p><b>Path</b>: %3</p>"
                      "<p><b>MIME Type</b>: %4</p>"
                      "<p><b>Size</b>: %5</p>"
                      "</td>"
                      "</tr>"
                      "</table>";
    if(item->mimeType().startsWith("image"))
        tooltip = tooltip.arg("<img src='file://" + item->path() + "' width='400' alt='not available'>");
    else
        tooltip = tooltip.arg("not available");
    tooltip = tooltip.arg(item->url().toString(), item->path(), item->mimeType(), sizeString(item->totalBytes()));
    setToolTip(tooltip);
}