Update Simple Browser example

- Accept downloads and add a downloads list.
- Fix toolbar icons being pixelated on hidpi screens by
  - enabling attribute AA_UseHighDpiPixmaps, and
  - replacing the 22x22 icons with 32x32 versions.
- Move favicon selection to WebView to reduce duplication.
- Replace UrlLineEdit with a standard QLineEdit using a QAction for the favicon
  and setClearButtonEnabled(true) for the clear button.
- Fix bug where the "File -> New Tab" action would create background tabs
  because the QAction::triggered(bool) signal was connected to the
  TabWidget::createTab(bool) slot with the bool argument having a completely
  different meaning between the two.
- Make the toolbar unmovable. Nobody wants to move the toolbar.
- Add tooltips to toolbar buttons.
- Add tooltips to the tab bar (page titles).
- Stop adding icons to menu items only to disable them right after.

Task-number: QTBUG-60655
Change-Id: I10cc0fa82dbf39281bbdbbf9ef901e1b26402f80
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@qt.io>
Reviewed-by: Michal Klocek <michal.klocek@qt.io>

1 files changed, 86 insertions, 0 deletions

diff --git a/examples/webenginewidgets/simplebrowser/downloadmanagerwidget.cpp b/examples/webenginewidgets/simplebrowser/downloadmanagerwidget.cpp
new file mode 100644
index 000000000..5f32294e8
--- /dev/null
+++ b/examples/webenginewidgets/simplebrowser/downloadmanagerwidget.cpp
@@ -0,0 +1,86 @@
+/****************************************************************************
+**
+** Copyright (C) 2017 The Qt Company Ltd.
+** Contact: https://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 "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();
+}