Rename example directories to match the source install destination

To match other modules example directory structures we should deploy our
examples in a directory matching the module name, webengine and
webenginewidgets in our case.

qmake uses the relative directory of each example up to the upper "examples"
directory to decide where they will be deployed when running the sources
install target.

Change-Id: I59ce7ff8a30f98fad20064c7eecf72b784f1d275
Reviewed-by: Pierre Rossi <pierre.rossi@gmail.com>

1 files changed, 580 insertions, 0 deletions

diff --git a/examples/webenginewidgets/browser/downloadmanager.cpp b/examples/webenginewidgets/browser/downloadmanager.cpp
new file mode 100644
index 000000000..6f4c6c8ad
--- /dev/null
+++ b/examples/webenginewidgets/browser/downloadmanager.cpp
@@ -0,0 +1,580 @@
+/****************************************************************************
+**
+** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the demonstration applications of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Digia gives you certain additional
+** rights.  These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "downloadmanager.h"
+
+#include "autosaver.h"
+#include "browserapplication.h"
+#include "networkaccessmanager.h"
+
+#include <math.h>
+
+#include <QtCore/QMetaEnum>
+#include <QtCore/QSettings>
+
+#include <QtGui/QDesktopServices>
+#include <QtWidgets/QFileDialog>
+#include <QtWidgets/QHeaderView>
+#include <QtWidgets/QFileIconProvider>
+
+#include <QtCore/QDebug>
+
+#include <QWebEngineSettings>
+
+/*!
+    DownloadItem is a widget that is displayed in the download manager list.
+    It moves the data from the QNetworkReply into the QFile as well
+    as update the information/progressbar and report errors.
+ */
+DownloadItem::DownloadItem(QNetworkReply *reply, bool requestFileName, QWidget *parent)
+    : QWidget(parent)
+    , m_reply(reply)
+    , m_requestFileName(requestFileName)
+    , m_bytesReceived(0)
+{
+    setupUi(this);
+    QPalette p = downloadInfoLabel->palette();
+    p.setColor(QPalette::Text, Qt::darkGray);
+    downloadInfoLabel->setPalette(p);
+    progressBar->setMaximum(0);
+    tryAgainButton->hide();
+    connect(stopButton, SIGNAL(clicked()), this, SLOT(stop()));
+    connect(openButton, SIGNAL(clicked()), this, SLOT(open()));
+    connect(tryAgainButton, SIGNAL(clicked()), this, SLOT(tryAgain()));
+
+    init();
+}
+
+void DownloadItem::init()
+{
+    if (!m_reply)
+        return;
+
+    // attach to the m_reply
+    m_url = m_reply->url();
+    m_reply->setParent(this);
+    connect(m_reply, SIGNAL(readyRead()), this, SLOT(downloadReadyRead()));
+    connect(m_reply, SIGNAL(error(QNetworkReply::NetworkError)),
+            this, SLOT(error(QNetworkReply::NetworkError)));
+    connect(m_reply, SIGNAL(downloadProgress(qint64,qint64)),
+            this, SLOT(downloadProgress(qint64,qint64)));
+    connect(m_reply, SIGNAL(metaDataChanged()),
+            this, SLOT(metaDataChanged()));
+    connect(m_reply, SIGNAL(finished()),
+            this, SLOT(finished()));
+
+    // reset info
+    downloadInfoLabel->clear();
+    progressBar->setValue(0);
+    getFileName();
+
+    // start timer for the download estimation
+    m_downloadTime.start();
+
+    if (m_reply->error() != QNetworkReply::NoError) {
+        error(m_reply->error());
+        finished();
+    }
+}
+
+void DownloadItem::getFileName()
+{
+    QSettings settings;
+    settings.beginGroup(QLatin1String("downloadmanager"));
+    QString defaultLocation = QStandardPaths::writableLocation(QStandardPaths::DesktopLocation);
+    QString downloadDirectory = settings.value(QLatin1String("downloadDirectory"), defaultLocation).toString();
+    if (!downloadDirectory.isEmpty())
+        downloadDirectory += QLatin1Char('/');
+
+    QString defaultFileName = saveFileName(downloadDirectory);
+    QString fileName = defaultFileName;
+    if (m_requestFileName) {
+        fileName = QFileDialog::getSaveFileName(this, tr("Save File"), defaultFileName);
+        if (fileName.isEmpty()) {
+            m_reply->close();
+            fileNameLabel->setText(tr("Download canceled: %1").arg(QFileInfo(defaultFileName).fileName()));
+            return;
+        }
+    }
+    m_output.setFileName(fileName);
+    fileNameLabel->setText(QFileInfo(m_output.fileName()).fileName());
+    if (m_requestFileName)
+        downloadReadyRead();
+}
+
+QString DownloadItem::saveFileName(const QString &directory) const
+{
+    // Move this function into QNetworkReply to also get file name sent from the server
+    QString path = m_url.path();
+    QFileInfo info(path);
+    QString baseName = info.completeBaseName();
+    QString endName = info.suffix();
+
+    if (baseName.isEmpty()) {
+        baseName = QLatin1String("unnamed_download");
+        qDebug() << "DownloadManager:: downloading unknown file:" << m_url;
+    }
+    QString name = directory + baseName + QLatin1Char('.') + endName;
+    if (QFile::exists(name)) {
+        // already exists, don't overwrite
+        int i = 1;
+        do {
+            name = directory + baseName + QLatin1Char('-') + QString::number(i++) + QLatin1Char('.') + endName;
+        } while (QFile::exists(name));
+    }
+    return name;
+}
+
+
+void DownloadItem::stop()
+{
+    setUpdatesEnabled(false);
+    stopButton->setEnabled(false);
+    stopButton->hide();
+    tryAgainButton->setEnabled(true);
+    tryAgainButton->show();
+    setUpdatesEnabled(true);
+    m_reply->abort();
+}
+
+void DownloadItem::open()
+{
+    QFileInfo info(m_output);
+    QUrl url = QUrl::fromLocalFile(info.absolutePath());
+    QDesktopServices::openUrl(url);
+}
+
+void DownloadItem::tryAgain()
+{
+    if (!tryAgainButton->isEnabled())
+        return;
+
+    tryAgainButton->setEnabled(false);
+    tryAgainButton->setVisible(false);
+    stopButton->setEnabled(true);
+    stopButton->setVisible(true);
+    progressBar->setVisible(true);
+
+    QNetworkReply *r = BrowserApplication::networkAccessManager()->get(QNetworkRequest(m_url));
+    if (m_reply)
+        m_reply->deleteLater();
+    if (m_output.exists())
+        m_output.remove();
+    m_reply = r;
+    init();
+    emit statusChanged();
+}
+
+void DownloadItem::downloadReadyRead()
+{
+    if (m_requestFileName && m_output.fileName().isEmpty())
+        return;
+    if (!m_output.isOpen()) {
+        // in case someone else has already put a file there
+        if (!m_requestFileName)
+            getFileName();
+        if (!m_output.open(QIODevice::WriteOnly)) {
+            downloadInfoLabel->setText(tr("Error opening save file: %1")
+                    .arg(m_output.errorString()));
+            stopButton->click();
+            emit statusChanged();
+            return;
+        }
+        emit statusChanged();
+    }
+    if (-1 == m_output.write(m_reply->readAll())) {
+        downloadInfoLabel->setText(tr("Error saving: %1")
+                .arg(m_output.errorString()));
+        stopButton->click();
+    }
+}
+
+void DownloadItem::error(QNetworkReply::NetworkError)
+{
+    qDebug() << "DownloadItem::error" << m_reply->errorString() << m_url;
+    downloadInfoLabel->setText(tr("Network Error: %1").arg(m_reply->errorString()));
+    tryAgainButton->setEnabled(true);
+    tryAgainButton->setVisible(true);
+}
+
+void DownloadItem::metaDataChanged()
+{
+    qDebug() << "DownloadItem::metaDataChanged: not handled.";
+}
+
+void DownloadItem::downloadProgress(qint64 bytesReceived, qint64 bytesTotal)
+{
+    m_bytesReceived = bytesReceived;
+    if (bytesTotal == -1) {
+        progressBar->setValue(0);
+        progressBar->setMaximum(0);
+    } else {
+        progressBar->setValue(bytesReceived);
+        progressBar->setMaximum(bytesTotal);
+    }
+    updateInfoLabel();
+}
+
+void DownloadItem::updateInfoLabel()
+{
+    if (m_reply->error() == QNetworkReply::NoError)
+        return;
+
+    qint64 bytesTotal = progressBar->maximum();
+    bool running = !downloadedSuccessfully();
+
+    // update info label
+    double speed = m_bytesReceived * 1000.0 / m_downloadTime.elapsed();
+    double timeRemaining = ((double)(bytesTotal - m_bytesReceived)) / speed;
+    QString timeRemainingString = tr("seconds");
+    if (timeRemaining > 60) {
+        timeRemaining = timeRemaining / 60;
+        timeRemainingString = tr("minutes");
+    }
+    timeRemaining = floor(timeRemaining);
+
+    // When downloading the eta should never be 0
+    if (timeRemaining == 0)
+        timeRemaining = 1;
+
+    QString info;
+    if (running) {
+        QString remaining;
+        if (bytesTotal != 0)
+            remaining = tr("- %4 %5 remaining")
+            .arg(timeRemaining)
+            .arg(timeRemainingString);
+        info = tr("%1 of %2 (%3/sec) %4")
+            .arg(dataString(m_bytesReceived))
+            .arg(bytesTotal == 0 ? tr("?") : dataString(bytesTotal))
+            .arg(dataString((int)speed))
+            .arg(remaining);
+    } else {
+        if (m_bytesReceived == bytesTotal)
+            info = dataString(m_output.size());
+        else
+            info = tr("%1 of %2 - Stopped")
+                .arg(dataString(m_bytesReceived))
+                .arg(dataString(bytesTotal));
+    }
+    downloadInfoLabel->setText(info);
+}
+
+QString DownloadItem::dataString(int size) const
+{
+    QString unit;
+    if (size < 1024) {
+        unit = tr("bytes");
+    } else if (size < 1024*1024) {
+        size /= 1024;
+        unit = tr("kB");
+    } else {
+        size /= 1024*1024;
+        unit = tr("MB");
+    }
+    return QString(QLatin1String("%1 %2")).arg(size).arg(unit);
+}
+
+bool DownloadItem::downloading() const
+{
+    return (progressBar->isVisible());
+}
+
+bool DownloadItem::downloadedSuccessfully() const
+{
+    return (stopButton->isHidden() && tryAgainButton->isHidden());
+}
+
+void DownloadItem::finished()
+{
+    progressBar->hide();
+    stopButton->setEnabled(false);
+    stopButton->hide();
+    m_output.close();
+    updateInfoLabel();
+    emit statusChanged();
+}
+
+/*!
+    DownloadManager is a Dialog that contains a list of DownloadItems
+
+    It is a basic download manager.  It only downloads the file, doesn't do BitTorrent,
+    extract zipped files or anything fancy.
+  */
+DownloadManager::DownloadManager(QWidget *parent)
+    : QDialog(parent)
+    , m_autoSaver(new AutoSaver(this))
+    , m_manager(BrowserApplication::networkAccessManager())
+    , m_iconProvider(0)
+    , m_removePolicy(Never)
+{
+    setupUi(this);
+    downloadsView->setShowGrid(false);
+    downloadsView->verticalHeader()->hide();
+    downloadsView->horizontalHeader()->hide();
+    downloadsView->setAlternatingRowColors(true);
+    downloadsView->horizontalHeader()->setStretchLastSection(true);
+    m_model = new DownloadModel(this);
+    downloadsView->setModel(m_model);
+    connect(cleanupButton, SIGNAL(clicked()), this, SLOT(cleanup()));
+    load();
+}
+
+DownloadManager::~DownloadManager()
+{
+    m_autoSaver->changeOccurred();
+    m_autoSaver->saveIfNeccessary();
+    if (m_iconProvider)
+        delete m_iconProvider;
+}
+
+int DownloadManager::activeDownloads() const
+{
+    int count = 0;
+    for (int i = 0; i < m_downloads.count(); ++i) {
+        if (m_downloads.at(i)->stopButton->isEnabled())
+            ++count;
+    }
+    return count;
+}
+
+void DownloadManager::download(const QNetworkRequest &request, bool requestFileName)
+{
+    if (request.url().isEmpty())
+        return;
+    handleUnsupportedContent(m_manager->get(request), requestFileName);
+}
+
+void DownloadManager::handleUnsupportedContent(QNetworkReply *reply, bool requestFileName)
+{
+    if (!reply || reply->url().isEmpty())
+        return;
+    QVariant header = reply->header(QNetworkRequest::ContentLengthHeader);
+    bool ok;
+    int size = header.toInt(&ok);
+    if (ok && size == 0)
+        return;
+
+    qDebug() << "DownloadManager::handleUnsupportedContent" << reply->url() << "requestFileName" << requestFileName;
+    DownloadItem *item = new DownloadItem(reply, requestFileName, this);
+    addItem(item);
+}
+
+void DownloadManager::addItem(DownloadItem *item)
+{
+    connect(item, SIGNAL(statusChanged()), this, SLOT(updateRow()));
+    int row = m_downloads.count();
+    m_model->beginInsertRows(QModelIndex(), row, row);
+    m_downloads.append(item);
+    m_model->endInsertRows();
+    updateItemCount();
+    if (row == 0)
+        show();
+    downloadsView->setIndexWidget(m_model->index(row, 0), item);
+    QIcon icon = style()->standardIcon(QStyle::SP_FileIcon);
+    item->fileIcon->setPixmap(icon.pixmap(48, 48));
+    downloadsView->setRowHeight(row, item->sizeHint().height());
+}
+
+void DownloadManager::updateRow()
+{
+    DownloadItem *item = qobject_cast<DownloadItem*>(sender());
+    int row = m_downloads.indexOf(item);
+    if (-1 == row)
+        return;
+    if (!m_iconProvider)
+        m_iconProvider = new QFileIconProvider();
+    QIcon icon = m_iconProvider->icon(item->m_output.fileName());
+    if (icon.isNull())
+        icon = style()->standardIcon(QStyle::SP_FileIcon);
+    item->fileIcon->setPixmap(icon.pixmap(48, 48));
+    downloadsView->setRowHeight(row, item->minimumSizeHint().height());
+
+    bool remove = false;
+#if defined(QWEBENGINESETTINGS)
+    QWebEngineSettings *globalSettings = QWebEngineSettings::globalSettings();
+    if (!item->downloading()
+        && globalSettings->testAttribute(QWebEngineSettings::PrivateBrowsingEnabled))
+        remove = true;
+#endif
+
+    if (item->downloadedSuccessfully()
+        && removePolicy() == DownloadManager::SuccessFullDownload) {
+        remove = true;
+    }
+    if (remove)
+        m_model->removeRow(row);
+
+    cleanupButton->setEnabled(m_downloads.count() - activeDownloads() > 0);
+}
+
+DownloadManager::RemovePolicy DownloadManager::removePolicy() const
+{
+    return m_removePolicy;
+}
+
+void DownloadManager::setRemovePolicy(RemovePolicy policy)
+{
+    if (policy == m_removePolicy)
+        return;
+    m_removePolicy = policy;
+    m_autoSaver->changeOccurred();
+}
+
+void DownloadManager::save() const
+{
+    QSettings settings;
+    settings.beginGroup(QLatin1String("downloadmanager"));
+    QMetaEnum removePolicyEnum = staticMetaObject.enumerator(staticMetaObject.indexOfEnumerator("RemovePolicy"));
+    settings.setValue(QLatin1String("removeDownloadsPolicy"), QLatin1String(removePolicyEnum.valueToKey(m_removePolicy)));
+    settings.setValue(QLatin1String("size"), size());
+    if (m_removePolicy == Exit)
+        return;
+
+    for (int i = 0; i < m_downloads.count(); ++i) {
+        QString key = QString(QLatin1String("download_%1_")).arg(i);
+        settings.setValue(key + QLatin1String("url"), m_downloads[i]->m_url);
+        settings.setValue(key + QLatin1String("location"), QFileInfo(m_downloads[i]->m_output).filePath());
+        settings.setValue(key + QLatin1String("done"), m_downloads[i]->downloadedSuccessfully());
+    }
+    int i = m_downloads.count();
+    QString key = QString(QLatin1String("download_%1_")).arg(i);
+    while (settings.contains(key + QLatin1String("url"))) {
+        settings.remove(key + QLatin1String("url"));
+        settings.remove(key + QLatin1String("location"));
+        settings.remove(key + QLatin1String("done"));
+        key = QString(QLatin1String("download_%1_")).arg(++i);
+    }
+}
+
+void DownloadManager::load()
+{
+    QSettings settings;
+    settings.beginGroup(QLatin1String("downloadmanager"));
+    QSize size = settings.value(QLatin1String("size")).toSize();
+    if (size.isValid())
+        resize(size);
+    QByteArray value = settings.value(QLatin1String("removeDownloadsPolicy"), QLatin1String("Never")).toByteArray();
+    QMetaEnum removePolicyEnum = staticMetaObject.enumerator(staticMetaObject.indexOfEnumerator("RemovePolicy"));
+    m_removePolicy = removePolicyEnum.keyToValue(value) == -1 ?
+                        Never :
+                        static_cast<RemovePolicy>(removePolicyEnum.keyToValue(value));
+
+    int i = 0;
+    QString key = QString(QLatin1String("download_%1_")).arg(i);
+    while (settings.contains(key + QLatin1String("url"))) {
+        QUrl url = settings.value(key + QLatin1String("url")).toUrl();
+        QString fileName = settings.value(key + QLatin1String("location")).toString();
+        bool done = settings.value(key + QLatin1String("done"), true).toBool();
+        if (!url.isEmpty() && !fileName.isEmpty()) {
+            DownloadItem *item = new DownloadItem(0, this);
+            item->m_output.setFileName(fileName);
+            item->fileNameLabel->setText(QFileInfo(item->m_output.fileName()).fileName());
+            item->m_url = url;
+            item->stopButton->setVisible(false);
+            item->stopButton->setEnabled(false);
+            item->tryAgainButton->setVisible(!done);
+            item->tryAgainButton->setEnabled(!done);
+            item->progressBar->setVisible(!done);
+            addItem(item);
+        }
+        key = QString(QLatin1String("download_%1_")).arg(++i);
+    }
+    cleanupButton->setEnabled(m_downloads.count() - activeDownloads() > 0);
+}
+
+void DownloadManager::cleanup()
+{
+    if (m_downloads.isEmpty())
+        return;
+    m_model->removeRows(0, m_downloads.count());
+    updateItemCount();
+    if (m_downloads.isEmpty() && m_iconProvider) {
+        delete m_iconProvider;
+        m_iconProvider = 0;
+    }
+    m_autoSaver->changeOccurred();
+}
+
+void DownloadManager::updateItemCount()
+{
+    int count = m_downloads.count();
+    itemCount->setText(count == 1 ? tr("1 Download") : tr("%1 Downloads").arg(count));
+}
+
+DownloadModel::DownloadModel(DownloadManager *downloadManager, QObject *parent)
+    : QAbstractListModel(parent)
+    , m_downloadManager(downloadManager)
+{
+}
+
+QVariant DownloadModel::data(const QModelIndex &index, int role) const
+{
+    if (index.row() < 0 || index.row() >= rowCount(index.parent()))
+        return QVariant();
+    if (role == Qt::ToolTipRole)
+        if (!m_downloadManager->m_downloads.at(index.row())->downloadedSuccessfully())
+            return m_downloadManager->m_downloads.at(index.row())->downloadInfoLabel->text();
+    return QVariant();
+}
+
+int DownloadModel::rowCount(const QModelIndex &parent) const
+{
+    return (parent.isValid()) ? 0 : m_downloadManager->m_downloads.count();
+}
+
+bool DownloadModel::removeRows(int row, int count, const QModelIndex &parent)
+{
+    if (parent.isValid())
+        return false;
+
+    int lastRow = row + count - 1;
+    for (int i = lastRow; i >= row; --i) {
+        if (m_downloadManager->m_downloads.at(i)->downloadedSuccessfully()
+            || m_downloadManager->m_downloads.at(i)->tryAgainButton->isEnabled()) {
+            beginRemoveRows(parent, i, i);
+            m_downloadManager->m_downloads.takeAt(i)->deleteLater();
+            endRemoveRows();
+        }
+    }
+    m_downloadManager->m_autoSaver->changeOccurred();
+    return true;
+}