Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 58 insertions, 0 deletions

diff --git a/sw/source/uibase/inc/navmgr.hxx b/sw/source/uibase/inc/navmgr.hxx
new file mode 100644
index 000000000..858b990fd
--- /dev/null
+++ b/sw/source/uibase/inc/navmgr.hxx
@@ -0,0 +1,58 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+#ifndef INCLUDED_SW_SOURCE_UIBASE_INC_NAVMGR_HXX
+#define INCLUDED_SW_SOURCE_UIBASE_INC_NAVMGR_HXX
+
+#include <vector>
+
+#include <unocrsr.hxx>
+
+class   SwWrtShell;
+struct  SwPosition;
+class SwUnoCursor;
+
+class SwNavigationMgr final : public SfxListener
+{
+private:
+    /*
+     * List of entries in the navigation history
+     * Entries are SwUnoCursor because these gets corrected automatically
+     * when nodes are deleted.
+     *
+     * The navigation history behaves as a stack, to which items are added when we jump to a new position
+     * (e.g. click a link, or double click an entry from the navigator).
+     * Every use of the back/forward buttons results in moving the stack pointer within the navigation history
+     */
+    typedef std::vector< sw::UnoCursorPointer > Stack_t;
+    Stack_t m_entries;
+    Stack_t::size_type m_nCurrent; /* Current position within the navigation history */
+    SwWrtShell & m_rMyShell; /* The active shell within which the navigation occurs */
+
+    void GotoSwPosition(const SwPosition &rPos);
+
+public:
+    /* Constructor that initializes the shell to the current shell */
+    SwNavigationMgr( SwWrtShell & rShell );
+    ~SwNavigationMgr() override;
+    /* Can we go back in the history ? */
+    bool backEnabled() ;
+    /* Can we go forward in the history ? */
+    bool forwardEnabled();
+    /* The method that is called when we click the back button */
+    void goBack() ;
+    /* The method that is called when we click the forward button */
+    void goForward() ;
+    /* The method that adds the position pPos to the navigation history */
+    bool addEntry(const SwPosition& rPos);
+    /* to get notified if our cursors self-destruct */
+    virtual void Notify(SfxBroadcaster& rBC, const SfxHint& rHint) override;
+};
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */