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  ** This file is part of the examples of the Qt Toolkit.
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  #include "downloadmanagerwidget.h"
  
  #include "browser.h"
  #include "browserwindow.h"
  #include "downloadwidget.h"
  
  #include <QFileDialog>
  #include <QWebEngineDownloadItem>
  
  DownloadManagerWidget::DownloadManagerWidget(QWidget *parent)
      : QWidget(parent)
      , m_numDownloads(0)
  {
      setupUi(this);
  }
  
  void DownloadManagerWidget::downloadRequested(QWebEngineDownloadItem *download)
  {
      Q_ASSERT(download && download->state() == QWebEngineDownloadItem::DownloadRequested);
  
      QString path = QFileDialog::getSaveFileName(this, tr("Save as"), download->path());
      if (path.isEmpty())
          return;
  
      download->setPath(path);
      download->accept();
      add(new DownloadWidget(download));
  
      show();
  }
  
  void DownloadManagerWidget::add(DownloadWidget *downloadWidget)
  {
      connect(downloadWidget, &DownloadWidget::removeClicked, this, &DownloadManagerWidget::remove);
      m_itemsLayout->insertWidget(0, downloadWidget, 0, Qt::AlignTop);
      if (m_numDownloads++ == 0)
          m_zeroItemsLabel->hide();
  }
  
  void DownloadManagerWidget::remove(DownloadWidget *downloadWidget)
  {
      m_itemsLayout->removeWidget(downloadWidget);
      downloadWidget->deleteLater();
      if (--m_numDownloads == 0)
          m_zeroItemsLabel->show();
  }
  