Rewrite Session backend

    Add session.hpp, containing structs that describe session data

    MainWindow, SubWindow and WebView can be created from
    Session::structs

    Opening new window will automatically open a default subwindow and tab
    if none were specified

Add lib/session_formats
    Add JsonSession, to serialize/deserialize Session structs into JSON
    - add some tests

clang-tidy:
    - fix various warnings
    - disable modernize-use-trailing-return-type check

2 files changed, 50 insertions, 7 deletions

diff --git a/src/webengine/webview.cpp b/src/webengine/webview.cpp
index d42bad5..c64333e 100644
--- a/src/webengine/webview.cpp
+++ b/src/webengine/webview.cpp
@@ -13,15 +13,12 @@
 #include "webprofilemanager.h"
 #include "webviewcontextmenu.h"
 #include <QContextMenuEvent>
+#include <QJsonObject>
 #include <QWebEngineHistoryItem>
 
-WebView::WebView(WebProfile *profile, QWidget *parent)
+WebView::WebView(QWidget *parent)
     : QWebEngineView(parent)
 {
-    Q_CHECK_PTR(profile);
-    m_profile = profile;
-    setPage(new WebPage(profile, this));
-
     m_parentWindow = qobject_cast<SubWindow *>(parent);
 
     // load status and progress
@@ -40,6 +37,34 @@ WebView::WebView(WebProfile *profile, QWidget *parent)
     });
 }
 
+WebView::WebView(WebProfile *profile, QWidget *parent)
+    : WebView(parent)
+{
+    Q_CHECK_PTR(profile);
+    m_profile = profile;
+    setPage(new WebPage(profile, this));
+}
+
+WebView::WebView(const Session::WebView &data, QWidget *parent)
+    : WebView(parent)
+{
+    const auto *profileManager = WebProfileManager::instance();
+    Q_CHECK_PTR(profileManager);
+
+    auto *profile = profileManager->profile(data.profile);
+    if(profile != nullptr) {
+        setProfile(profile);
+    }
+
+    if(!data.url.isEmpty())
+        load(QUrl::fromUserInput(data.url));
+    else {
+        QByteArray copy(data.history);
+        QDataStream historyStream(&copy, QIODevice::ReadOnly);
+        historyStream >> *history();
+    }
+}
+
 void WebView::setProfile(WebProfile *profile)
 {
     m_profile = profile;
@@ -48,6 +73,18 @@ void WebView::setProfile(WebProfile *profile)
     this->load(url);
 }
 
+Session::WebView WebView::serialize() const
+{
+    const auto *profileManager = WebProfileManager::instance();
+    Q_CHECK_PTR(profileManager);
+
+    QByteArray historyData;
+    QDataStream historyStream(&historyData, QIODevice::WriteOnly);
+    historyStream << *history();
+
+    return { profileManager->id(profile()), QString(), historyData };
+}
+
 bool WebView::isLoaded() const
 {
     return m_loaded;
diff --git a/src/webengine/webview.h b/src/webengine/webview.h
index 0223b78..5748691 100644
--- a/src/webengine/webview.h
+++ b/src/webengine/webview.h
@@ -11,26 +11,32 @@
 
 #include "webpage.h"
 #include <QWebEngineView>
+#include <session.hpp>
 
 class WebProfile;
 class SubWindow;
 class WebViewContextMenu;
-class WebView : public QWebEngineView
+class WebView final : public QWebEngineView
 {
     friend class WebViewContextMenu;
 
     Q_OBJECT
 
+    explicit WebView(QWidget *parent = nullptr);
+
 public:
     explicit WebView(WebProfile *profile = nullptr, QWidget *parent = nullptr);
+    explicit WebView(const Session::WebView &data, QWidget *parent = nullptr);
     ~WebView() = default;
 
-    WebProfile *profile() const
+    [[nodiscard]] WebProfile *profile() const
     {
         return m_profile;
     }
     void setProfile(WebProfile *profile);
 
+    [[nodiscard]] Session::WebView serialize() const;
+
     bool isLoaded() const;
 
 public slots: