Add a feature permission bar to the demo browser

Change-Id: Ib2deac6099c37f1e112821fb3398586269e05f22
Reviewed-by: Zeno Albisser <zeno.albisser@digia.com>

5 files changed, 209 insertions, 0 deletions

diff --git a/examples/webenginewidgets/browser/browser.pro b/examples/webenginewidgets/browser/browser.pro
index b40c745b8..c9bf1a9e0 100644
--- a/examples/webenginewidgets/browser/browser.pro
+++ b/examples/webenginewidgets/browser/browser.pro
@@ -28,6 +28,7 @@ HEADERS += \
     downloadmanager.h \
     edittableview.h \
     edittreeview.h \
+    featurepermissionbar.h\
     history.h \
     modelmenu.h \
     searchlineedit.h \
@@ -48,6 +49,7 @@ SOURCES += \
     downloadmanager.cpp \
     edittableview.cpp \
     edittreeview.cpp \
+    featurepermissionbar.cpp\
     history.cpp \
     modelmenu.cpp \
     searchlineedit.cpp \
diff --git a/examples/webenginewidgets/browser/featurepermissionbar.cpp b/examples/webenginewidgets/browser/featurepermissionbar.cpp
new file mode 100644
index 000000000..2cc9907bd
--- /dev/null
+++ b/examples/webenginewidgets/browser/featurepermissionbar.cpp
@@ -0,0 +1,120 @@
+/****************************************************************************
+**
+** Copyright (C) 2014 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 "featurepermissionbar.h"
+
+#include <QLabel>
+#include <QPushButton>
+#include <QHBoxLayout>
+#include <QUrl>
+#include <QPropertyAnimation>
+
+static const int defaultHeight = 30;
+
+static QString textForPermissionType(QWebEnginePage::Feature type)
+{
+    switch (type) {
+    case QWebEnginePage::Notifications:
+        return QObject::tr("desktop notifications");
+    case QWebEnginePage::Geolocation:
+        return QObject::tr("your position");
+    case QWebEnginePage::MediaAudioDevices:
+        return QObject::tr("your microphone");
+    case QWebEnginePage::MediaVideoDevices:
+        return QObject::tr("your camera");
+    case QWebEnginePage::MediaAudioVideoDevices:
+        return QObject::tr("your camera and microphone");
+    default:
+        Q_UNREACHABLE();
+    }
+    return QString();
+}
+
+FeaturePermissionBar::FeaturePermissionBar(QWidget *view)
+    : QWidget(view)
+    , m_messageLabel(new QLabel(this))
+{
+    setAutoFillBackground(true);
+    QHBoxLayout *l = new QHBoxLayout;
+    setLayout(l);
+    l->setContentsMargins(defaultHeight, 0, 0, 0);
+    l->addWidget(m_messageLabel);
+    l->addStretch();
+    QPushButton *allowButton = new QPushButton(tr("Allow"), this);
+    QPushButton *denyButton = new QPushButton(tr("Deny"), this);
+    connect(allowButton, &QPushButton::clicked, this, &FeaturePermissionBar::permissionGranted);
+    connect(denyButton, &QPushButton::clicked, this, &FeaturePermissionBar::permissionDenied);
+    QPushButton *discardButton = new QPushButton(QIcon(QStringLiteral(":closetab.png")), QString(), this);
+    connect(discardButton, &QPushButton::clicked, this, &QObject::deleteLater);
+    connect(allowButton, &QPushButton::clicked, this, &QObject::deleteLater);
+    connect(denyButton, &QPushButton::clicked, this, &QObject::deleteLater);
+    l->addWidget(denyButton);
+    l->addWidget(allowButton);
+    l->addWidget(discardButton);
+    setGeometry(0, -defaultHeight, view->width(), defaultHeight);
+}
+
+void FeaturePermissionBar::requestPermission(const QUrl &securityOrigin, QWebEnginePage::Feature feature)
+{
+    m_securityOrigin = securityOrigin;
+    m_feature = feature;
+    m_messageLabel->setText(tr("%1 wants to use %2.").arg(securityOrigin.host()).arg(textForPermissionType(feature)));
+    show();
+    // Ease in
+    QPropertyAnimation *animation = new QPropertyAnimation(this);
+    animation->setTargetObject(this);
+    animation->setPropertyName(QByteArrayLiteral("pos"));
+    animation->setDuration(300);
+    animation->setStartValue(QVariant::fromValue(pos()));
+    animation->setEndValue(QVariant::fromValue(QPoint(0,0)));
+    animation->setEasingCurve(QEasingCurve::InOutQuad);
+    animation->start(QPropertyAnimation::DeleteWhenStopped);
+}
+
+void FeaturePermissionBar::permissionDenied()
+{
+    emit featurePermissionProvided(m_securityOrigin, m_feature, QWebEnginePage::PermissionDeniedByUser);
+}
+
+void FeaturePermissionBar::permissionGranted()
+{
+    emit featurePermissionProvided(m_securityOrigin, m_feature, QWebEnginePage::PermissionGrantedByUser);
+}
diff --git a/examples/webenginewidgets/browser/featurepermissionbar.h b/examples/webenginewidgets/browser/featurepermissionbar.h
new file mode 100644
index 000000000..92ca04773
--- /dev/null
+++ b/examples/webenginewidgets/browser/featurepermissionbar.h
@@ -0,0 +1,73 @@
+/****************************************************************************
+**
+** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the QtWebEngine module 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.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef FEATUREPERMISSIONBAR_H
+#define FEATUREPERMISSIONBAR_H
+
+#include <QWidget>
+#include <QWebEnginePage>
+
+QT_BEGIN_NAMESPACE
+class QLabel;
+class QPushButton;
+QT_END_NAMESPACE
+
+class FeaturePermissionBar : public QWidget {
+Q_OBJECT
+
+public:
+    FeaturePermissionBar(QWidget*);
+    void requestPermission(const QUrl &, QWebEnginePage::Feature feature);
+
+signals:
+    void featurePermissionProvided(const QUrl &securityOrigin, QWebEnginePage::Feature, QWebEnginePage::PermissionPolicy);
+
+private slots:
+    void permissionDenied();
+    void permissionGranted();
+
+private:
+    QWebEnginePage::Feature m_feature;
+    QLabel *m_messageLabel;
+    QUrl m_securityOrigin;
+};
+
+#endif // FEATUREPERMISSIONBAR_H
diff --git a/examples/webenginewidgets/browser/webview.cpp b/examples/webenginewidgets/browser/webview.cpp
index bc2a4d906..edbaadca9 100644
--- a/examples/webenginewidgets/browser/webview.cpp
+++ b/examples/webenginewidgets/browser/webview.cpp
@@ -43,6 +43,7 @@
 #include "browsermainwindow.h"
 #include "cookiejar.h"
 #include "downloadmanager.h"
+#include "featurepermissionbar.h"
 #include "networkaccessmanager.h"
 #include "ui_passworddialog.h"
 #include "ui_proxy.h"
@@ -326,6 +327,7 @@ WebView::WebView(QWidget* parent)
     connect(page(), SIGNAL(downloadRequested(QNetworkRequest)),
             this, SLOT(downloadRequested(QNetworkRequest)));
 #endif
+    connect(page(), &WebPage::featurePermissionRequested, this, &WebView::onFeaturePermissionRequested);
 #if defined(QWEBENGINEPAGE_UNSUPPORTEDCONTENT)
     page()->setForwardUnsupportedContent(true);
 #endif
@@ -376,6 +378,17 @@ void WebView::openLinkInNewTab()
 #endif
 }
 
+void WebView::onFeaturePermissionRequested(const QUrl &securityOrigin, QWebEnginePage::Feature feature)
+{
+    FeaturePermissionBar *permissionBar = new FeaturePermissionBar(this);
+    connect(permissionBar, &FeaturePermissionBar::featurePermissionProvided, page(), &QWebEnginePage::setFeaturePermission);
+
+    // Discard the bar on new loads (if we navigate away or reload).
+    connect(page(), &QWebEnginePage::loadStarted, permissionBar, &QObject::deleteLater);
+
+    permissionBar->requestPermission(securityOrigin, feature);
+}
+
 void WebView::setProgress(int progress)
 {
     m_progress = progress;
diff --git a/examples/webenginewidgets/browser/webview.h b/examples/webenginewidgets/browser/webview.h
index 1fb64c8b2..aaf2aab13 100644
--- a/examples/webenginewidgets/browser/webview.h
+++ b/examples/webenginewidgets/browser/webview.h
@@ -114,6 +114,7 @@ private slots:
     void setStatusBarText(const QString &string);
     void downloadRequested(const QNetworkRequest &request);
     void openLinkInNewTab();
+    void onFeaturePermissionRequested(const QUrl &securityOrigin, QWebEnginePage::Feature);
 
 private:
     QString m_statusBarText;