Add support for registerProtocolHandler

Extend initialization of URLRequestContextGetterQt to create a
content::ProtocolHandlerRegistry for each content::BrowserContext and add the
registry's URL request interceptor to the front of the interceptor chain.

Implement methods in WebContentsDelegateQt to add/remove protocol handlers
to/from the ProtocolHandlerRegistry.

Add permission request signal and classes for core, quick and widgets.

Add widgets autotest.

Add signal handlers to quicknanobrowser and simplebrowser.

Task-number: QTBUG-62783
Change-Id: I808e7eb9a1cb4d7216686deed4895de14fe46310
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>

3 files changed, 55 insertions, 0 deletions

diff --git a/src/webengine/api/qquickwebengineview.cpp b/src/webengine/api/qquickwebengineview.cpp
index 617b999da..91ae20481 100644
--- a/src/webengine/api/qquickwebengineview.cpp
+++ b/src/webengine/api/qquickwebengineview.cpp
@@ -46,6 +46,7 @@
 #include "file_picker_controller.h"
 #include "javascript_dialog_controller.h"
 #include "quota_permission_controller.h"
+#include "register_protocol_handler_permission_controller.h"
 #include "qquickwebenginehistory_p.h"
 #include "qquickwebenginecertificateerror_p.h"
 #include "qquickwebenginecontextmenurequest_p.h"
@@ -599,6 +600,13 @@ void QQuickWebEngineViewPrivate::runQuotaPermissionRequest(QSharedPointer<QtWebE
     Q_EMIT q->quotaPermissionRequested(request);
 }
 
+void QQuickWebEngineViewPrivate::runRegisterProtocolHandlerPermissionRequest(QSharedPointer<RegisterProtocolHandlerPermissionController> controller)
+{
+    Q_Q(QQuickWebEngineView);
+    QQuickWebEngineRegisterProtocolHandlerPermissionRequest request(std::move(controller));
+    Q_EMIT q->registerProtocolHandlerPermissionRequested(request);
+}
+
 QObject *QQuickWebEngineViewPrivate::accessibilityParentObject()
 {
     Q_Q(QQuickWebEngineView);
@@ -1828,6 +1836,31 @@ qint64 QQuickWebEngineQuotaPermissionRequest::requestedSize() const
     return d_ptr->requestedSize();
 }
 
+QQuickWebEngineRegisterProtocolHandlerPermissionRequest::QQuickWebEngineRegisterProtocolHandlerPermissionRequest(
+    QSharedPointer<QtWebEngineCore::RegisterProtocolHandlerPermissionController> d_ptr)
+    : d_ptr(std::move(d_ptr))
+{}
+
+void QQuickWebEngineRegisterProtocolHandlerPermissionRequest::accept()
+{
+    d_ptr->accept();
+}
+
+void QQuickWebEngineRegisterProtocolHandlerPermissionRequest::reject()
+{
+    d_ptr->reject();
+}
+
+QUrl QQuickWebEngineRegisterProtocolHandlerPermissionRequest::origin() const
+{
+    return d_ptr->origin();
+}
+
+QString QQuickWebEngineRegisterProtocolHandlerPermissionRequest::protocol() const
+{
+    return d_ptr->protocol();
+}
+
 QQuickContextMenuBuilder::QQuickContextMenuBuilder(const QtWebEngineCore::WebEngineContextMenuData &data,
                                                    QQuickWebEngineView *view,
                                                    QObject *menu)
diff --git a/src/webengine/api/qquickwebengineview_p.h b/src/webengine/api/qquickwebengineview_p.h
index 8bda609c0..5b018b8a8 100644
--- a/src/webengine/api/qquickwebengineview_p.h
+++ b/src/webengine/api/qquickwebengineview_p.h
@@ -59,6 +59,7 @@
 
 namespace QtWebEngineCore {
     class QuotaPermissionController;
+    class RegisterProtocolHandlerPermissionController;
 }
 
 
@@ -123,6 +124,24 @@ private:
     QSharedPointer<QtWebEngineCore::QuotaPermissionController> d_ptr;
 };
 
+class Q_WEBENGINE_PRIVATE_EXPORT QQuickWebEngineRegisterProtocolHandlerPermissionRequest {
+    Q_GADGET
+    Q_PROPERTY(QUrl origin READ origin CONSTANT FINAL)
+    Q_PROPERTY(QString protocol READ protocol CONSTANT FINAL)
+public:
+    QQuickWebEngineRegisterProtocolHandlerPermissionRequest() {}
+    QQuickWebEngineRegisterProtocolHandlerPermissionRequest(
+        QSharedPointer<QtWebEngineCore::RegisterProtocolHandlerPermissionController>);
+
+    Q_INVOKABLE void accept();
+    Q_INVOKABLE void reject();
+    QUrl origin() const;
+    QString protocol() const;
+
+private:
+    QSharedPointer<QtWebEngineCore::RegisterProtocolHandlerPermissionController> d_ptr;
+};
+
 #define LATEST_WEBENGINEVIEW_REVISION 7
 
 class Q_WEBENGINE_PRIVATE_EXPORT QQuickWebEngineView : public QQuickItem {
@@ -567,6 +586,7 @@ Q_SIGNALS:
     Q_REVISION(7) void geometryChangeRequested(const QRect &geometry, const QRect &frameGeometry);
     Q_REVISION(7) void inspectedViewChanged();
     Q_REVISION(7) void devToolsViewChanged();
+    Q_REVISION(7) void registerProtocolHandlerPermissionRequested(const QQuickWebEngineRegisterProtocolHandlerPermissionRequest &request);
 
 #ifdef ENABLE_QML_TESTSUPPORT_API
     void testSupportChanged();
@@ -597,5 +617,6 @@ QT_END_NAMESPACE
 QML_DECLARE_TYPE(QQuickWebEngineView)
 Q_DECLARE_METATYPE(QQuickWebEngineFullScreenRequest)
 Q_DECLARE_METATYPE(QQuickWebEngineQuotaPermissionRequest)
+Q_DECLARE_METATYPE(QQuickWebEngineRegisterProtocolHandlerPermissionRequest)
 
 #endif // QQUICKWEBENGINEVIEW_P_H
diff --git a/src/webengine/api/qquickwebengineview_p_p.h b/src/webengine/api/qquickwebengineview_p_p.h
index cfe99a0d4..1b718a3da 100644
--- a/src/webengine/api/qquickwebengineview_p_p.h
+++ b/src/webengine/api/qquickwebengineview_p_p.h
@@ -132,6 +132,7 @@ public:
     void runMediaAccessPermissionRequest(const QUrl &securityOrigin, MediaRequestFlags requestFlags) override;
     void runMouseLockPermissionRequest(const QUrl &securityOrigin) override;
     void runQuotaPermissionRequest(QSharedPointer<QtWebEngineCore::QuotaPermissionController>) override;
+    void runRegisterProtocolHandlerPermissionRequest(QSharedPointer<QtWebEngineCore::RegisterProtocolHandlerPermissionController>) override;
     QObject *accessibilityParentObject() override;
     QtWebEngineCore::WebEngineSettings *webEngineSettings() const override;
     void allowCertificateError(const QSharedPointer<CertificateErrorController> &errorController) override;