Port KTorrent to QWebEngine

Summary:
Ports KTorrent Search Plugin to QWebEngine
Ports KTorrent Syndication Plugin to QWebEngine

Test Plan:
Use search Plugin:

  - Search for torrent
  - Start download automatically from magnet link
  - Start download automatically from torrent file
  - Save torrent file to disk

Reviewers: stikonas, trufanov, mlaurent

Reviewed By: stikonas, trufanov, mlaurent

Subscribers: mlaurent

Maniphest Tasks: T11609

Differential Revision: https://phabricator.kde.org/D25314

CMakeLists.txt

@@ -110,14 +110,14 @@ if(KF5Syndication_FOUND)
   set(HAVE_KF5Syndication 1)
 endif()
 
-find_package(KF5WebKit ${KF5_REQUIRED_VERSION})
-set_package_properties(KF5WebKit
+find_package(Qt5WebEngineWidgets ${QT_MIN_VERSION})
+set_package_properties(Qt5WebEngineWidgets
   PROPERTIES
   TYPE OPTIONAL
   PURPOSE "Required for KTorrent's search and syndication plugins"
 )
-if(KF5WebKit_FOUND)
-  set(HAVE_KF5WebKit 1)
+if(Qt5WebEngineWidgets_FOUND)
+  set(HAVE_Qt5WebEngineWidgets 1)
 endif()
 
 find_package(KF5DNSSD ${KF5_REQUIRED_VERSION})

ktorrent/main.cpp

@@ -107,6 +107,7 @@ int main(int argc, char** argv)
     bt::SetClientInfo(QStringLiteral("KTorrent"), kt::MAJOR, kt::MINOR, kt::RELEASE, kt::VERSION_TYPE, QStringLiteral("KT"));
 
     QGuiApplication::setAttribute(Qt::AA_UseHighDpiPixmaps);
+    QCoreApplication::setAttribute(Qt::AA_ShareOpenGLContexts);
     KLocalizedString::setApplicationDomain("ktorrent");
 
     QApplication app(argc, argv);

plugins/CMakeLists.txt

@@ -13,7 +13,7 @@ macro_kt_plugin(ENABLE_INFOWIDGET_PLUGIN infowidget infowidget)
 if (HAVE_KF5Completion)
     macro_kt_plugin(ENABLE_UPNP_PLUGIN upnp upnp)
 endif()
-if (HAVE_KF5WebKit)
+if (HAVE_Qt5WebEngineWidgets)
   macro_kt_plugin(ENABLE_SEARCH_PLUGIN search search)
 endif()
 #macro_kt_plugin(ENABLE_WEBINTERFACE_PLUGIN webinterface webinterface)
@@ -34,7 +34,7 @@ endif()
 if (HAVE_KF5Archive AND HAVE_KF5ItemViews AND HAVE_KF5Kross)
   macro_kt_plugin(ENABLE_SCRIPTING_PLUGIN scripting scripting)
 endif()
-if (HAVE_KF5Syndication AND HAVE_KF5WebKit)
+if (HAVE_KF5Syndication AND HAVE_Qt5WebEngineWidgets)
   macro_kt_plugin(ENABLE_SYNDICATION_PLUGIN syndication syndication)
 endif()
 macro_kt_plugin(ENABLE_DOWNLOADORDER_PLUGIN downloadorder downloadorder)

plugins/search/CMakeLists.txt

@@ -1,7 +1,5 @@
 set(ktsearchplugin_SRC 
 	webview.cpp 
-	localfilenetworkreply.cpp 
-	buffernetworkreply.cpp 
 	searchenginelist.cpp 
 	searchprefpage.cpp 
 	searchwidget.cpp 
@@ -10,7 +8,8 @@ set(ktsearchplugin_SRC
 	searchengine.cpp 
 	opensearchdownloadjob.cpp
         searchactivity.cpp
-        proxy_helper.cpp)
+        proxy_helper.cpp
+        magneturlschemehandler.cpp)
 
 ki18n_wrap_ui(ktsearchplugin_SRC searchpref.ui)
 kconfig_add_kcfg_files(ktsearchplugin_SRC searchpluginsettings.kcfgc)
@@ -21,7 +20,7 @@ kcoreaddons_desktop_to_json(ktorrent_search ktorrent_search.desktop)
 target_link_libraries(
     ktorrent_search
     ktcore
-    Qt5::WebKitWidgets
+    Qt5::WebEngineWidgets
     KF5::Torrent
     KF5::CoreAddons
     KF5::Completion
@@ -32,7 +31,6 @@ target_link_libraries(
     KF5::KIOCore
     KF5::KIOWidgets
     KF5::Notifications
-    KF5::WebKit
     KF5::WidgetsAddons
     KF5::XmlGui
 )

plugins/search/magneturlschemehandler.cpp

@@ -0,0 +1,34 @@
+/*
+ * Copyright 2019  <Gilbert Assaf> gassaf@gmx.de
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License or (at your option) version 3 or any later version
+ * accepted by the membership of KDE e.V. (or its successor approved
+ * by the membership of KDE e.V.), which shall act as a proxy
+ * defined in Section 14 of version 3 of the license.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "magneturlschemehandler.h"
+#include <QWebEngineUrlSchemeHandler>
+#include <QWebEngineUrlRequestJob>
+
+MagnetUrlSchemeHandler::MagnetUrlSchemeHandler(QObject *parent ) : QWebEngineUrlSchemeHandler(parent) {
+
+}
+
+void MagnetUrlSchemeHandler::requestStarted(QWebEngineUrlRequestJob *request) {
+    request->fail(QWebEngineUrlRequestJob::RequestAborted);
+    const QUrl url = request->requestUrl();
+
+    emit magnetUrlDetected(url);
+}