Qt 5.8 | Qt WebEngine | WebEngine Widgets Simple Browser Example | webpopupwindow.cpp Example File

Qt 5.8.0 Reference Documentation

# webpopupwindow.cpp Example File

webenginewidgets/simplebrowser/webpopupwindow.cpp

      /****************************************************************************
      **
      ** Copyright (C) 2016 The Qt Company Ltd.
      ** Contact: http://www.qt.io/licensing/
      **
      ** This file is part of the examples of the Qt Toolkit.
      **
      ** $QT_BEGIN_LICENSE:BSD$
      ** You may use this file under the terms of the BSD license as follows:
      **
      ** "Redistribution and use in source and binary forms, with or without
      ** modification, are permitted provided that the following conditions are
      ** met:
      **   * Redistributions of source code must retain the above copyright
      **     notice, this list of conditions and the following disclaimer.
      **   * Redistributions in binary form must reproduce the above copyright
      **     notice, this list of conditions and the following disclaimer in
      **     the documentation and/or other materials provided with the
      **     distribution.
      **   * Neither the name of The Qt Company Ltd nor the names of its
      **     contributors may be used to endorse or promote products derived
      **     from this software without specific prior written permission.
      **
      **
      ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
      ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
      ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
      ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
      ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
      ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
      ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
      ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
      ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
      ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
      ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
      **
      ** $QT_END_LICENSE$
      **
      ****************************************************************************/

      #include "urllineedit.h"
      #include "webpage.h"
      #include "webpopupwindow.h"
      #include "webview.h"
      #include <QIcon>
      #include <QVBoxLayout>

      WebPopupWindow::WebPopupWindow(QWebEngineProfile *profile)
          : m_addressBar(new UrlLineEdit(this))
          , m_view(new WebView(this))
      {
          setAttribute(Qt::WA_DeleteOnClose);
          setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Minimum);

          QVBoxLayout *layout = new QVBoxLayout;
          layout->setMargin(0);
          setLayout(layout);
          layout->addWidget(m_addressBar);
          layout->addWidget(m_view);

          m_view->setPage(new WebPage(profile, m_view));
          m_view->setFocus();
          m_addressBar->setReadOnly(true);
          m_addressBar->setFavIcon(QIcon(QStringLiteral(":defaulticon.png")));

          connect(m_view, &WebView::titleChanged, this, &QWidget::setWindowTitle);
          connect(m_view, &WebView::urlChanged, this, &WebPopupWindow::setUrl);
          connect(m_view->page(), &WebPage::iconChanged, this, &WebPopupWindow::handleIconChanged);
          connect(m_view->page(), &WebPage::geometryChangeRequested, this, &WebPopupWindow::handleGeometryChangeRequested);
          connect(m_view->page(), &WebPage::windowCloseRequested, this, &QWidget::close);
      }

      QWebEngineView *WebPopupWindow::view() const
      {
          return m_view;
      }

      void WebPopupWindow::setUrl(const QUrl &url)
      {
          m_addressBar->setUrl(url);
      }

      void WebPopupWindow::handleGeometryChangeRequested(const QRect &newGeometry)
      {
          m_view->setMinimumSize(newGeometry.width(), newGeometry.height());
          move(newGeometry.topLeft() - m_view->pos());
          // let the layout do the magic
          resize(0, 0);
          show();
      }

      void WebPopupWindow::handleIconChanged(const QIcon &icon)
      {
          if (icon.isNull())
              m_addressBar->setFavIcon(QIcon(QStringLiteral(":defaulticon.png")));
          else
              m_addressBar->setFavIcon(icon);
      }