Move wxWebViewEdge implementation to private header

include/wx/msw/private/webview_edge.h

@@ -0,0 +1,61 @@
+/////////////////////////////////////////////////////////////////////////////
+// Name:        include/wx/msw/webview_edge.h
+// Purpose:     wxMSW Edge Chromium wxWebView backend private classes
+// Author:      Tobias Taschner
+// Created:     2020-01-15
+// Copyright:   (c) 2020 wxWidgets development team
+// Licence:     wxWindows licence
+/////////////////////////////////////////////////////////////////////////////
+
+#ifndef wxWebViewEdge_PRIVATE_H
+#define wxWebViewEdge_PRIVATE_H
+
+#include "wx/dynlib.h"
+#include "wx/msw/private/comptr.h"
+
+#include <Webview2.h>
+
+class wxWebViewEdgeImpl
+{
+public:
+    explicit wxWebViewEdgeImpl(wxWebViewEdge* webview);
+    ~wxWebViewEdgeImpl();
+
+    bool Create();
+
+    wxWebViewEdge* m_ctrl;
+
+    wxCOMPtr<IWebView2Environment3> m_webViewEnvironment;
+    wxCOMPtr<IWebView2WebView5> m_webView;
+
+    bool m_initialized;
+    bool m_isBusy;
+    wxString m_pendingURL;
+
+    EventRegistrationToken m_navigationStartingToken = { };
+    EventRegistrationToken m_navigationCompletedToken = { };
+    EventRegistrationToken m_newWindowRequestedToken = { };
+    EventRegistrationToken m_documentStateChangedToken = { };
+
+    wxVector<wxSharedPtr<wxWebViewHistoryItem> > m_historyList;
+    int m_historyPosition;
+    bool m_historyLoadingFromList;
+    bool m_historyEnabled;
+
+    void InitWebViewCtrl();
+
+    void UpdateBounds();
+
+    IWebView2Settings2* GetSettings();
+
+    static int ms_isAvailable;
+    static wxDynamicLibrary ms_loaderDll;
+
+    static bool Initialize();
+
+    static void Uninitalize();
+
+    friend class wxWebViewEdgeModule;
+};
+
+#endif // wxWebViewEdge_PRIVATE_H