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, 164 insertions, 0 deletions

diff --git a/sd/source/ui/slidesorter/controller/SlsListener.hxx b/sd/source/ui/slidesorter/controller/SlsListener.hxx
new file mode 100644
index 000000000..eff02cf19
--- /dev/null
+++ b/sd/source/ui/slidesorter/controller/SlsListener.hxx
@@ -0,0 +1,164 @@
+/* -*- 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/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#pragma once
+
+#include <controller/SlideSorterController.hxx>
+#include <com/sun/star/document/XEventListener.hpp>
+#include <com/sun/star/beans/XPropertyChangeListener.hpp>
+#include <com/sun/star/accessibility/XAccessibleEventListener.hpp>
+#include <com/sun/star/frame/XFrameActionListener.hpp>
+#include <comphelper/compbase.hxx>
+#include <cppuhelper/weakref.hxx>
+
+#include <svl/lstner.hxx>
+#include <tools/link.hxx>
+#include <memory>
+
+class SdrPage;
+
+namespace sd {
+class ViewShellBase;
+}
+
+namespace sd::tools { class EventMultiplexerEvent; }
+namespace sd::slidesorter { class SlideSorter; }
+
+namespace sd::slidesorter::controller {
+
+typedef comphelper::WeakComponentImplHelper<
+    css::document::XEventListener,
+    css::beans::XPropertyChangeListener,
+    css::accessibility::XAccessibleEventListener,
+    css::frame::XFrameActionListener
+    > ListenerInterfaceBase;
+
+/** Listen for events of various types and sources and react to them.  This
+    class is a part of the controller.
+
+    When the view shell in the center pane is replaced by another the
+    associated controller is replaced as well.  Therefore we have to
+    register at the frame and on certain FrameActionEvents to stop listening
+    to the old controller and register as listener at the new one.
+*/
+class Listener
+    : public ListenerInterfaceBase,
+      public SfxListener
+{
+public:
+    explicit Listener (SlideSorter& rSlideSorter);
+    virtual ~Listener() override;
+
+    /** Connect to the current controller of the view shell as listener.
+        This method is called once during initialization and every time a
+        FrameActionEvent signals the current controller being exchanged.
+        When the connection is successful then the flag
+        mbListeningToController is set to <TRUE/>.
+    */
+    void ConnectToController();
+
+    /** Disconnect from the current controller of the view shell as
+        listener.  This method is called once during initialization and
+        every time a FrameActionEvent signals the current controller being
+        exchanged.  When this method terminates then mbListeningToController
+        is <FALSE/>.
+    */
+    void DisconnectFromController();
+
+    virtual void Notify (
+        SfxBroadcaster& rBroadcaster,
+        const SfxHint& rHint) override;
+
+    //=====  lang::XEventListener  ============================================
+    virtual void SAL_CALL
+        disposing (const css::lang::EventObject& rEventObject) override;
+
+    //=====  document::XEventListener  ========================================
+    virtual void SAL_CALL
+        notifyEvent (
+            const css::document::EventObject& rEventObject) override;
+
+    //=====  beans::XPropertySetListener  =====================================
+    virtual void SAL_CALL
+        propertyChange (
+            const css::beans::PropertyChangeEvent& rEvent) override;
+
+    //===== accessibility::XAccessibleEventListener  ==========================
+    virtual void SAL_CALL
+        notifyEvent (
+            const css::accessibility::AccessibleEventObject&
+            rEvent) override;
+
+    //===== frame::XFrameActionListener  ======================================
+    /** For certain actions the listener connects to a new controller of the
+        frame it is listening to.  This usually happens when the view shell
+        in the center pane is replaced by another view shell.
+    */
+    virtual void SAL_CALL
+        frameAction (const css::frame::FrameActionEvent& rEvent) override;
+
+    virtual void disposing(std::unique_lock<std::mutex>&) override;
+
+private:
+    SlideSorter& mrSlideSorter;
+    SlideSorterController& mrController;
+    ViewShellBase* mpBase;
+
+    /// Remember whether we are listening to the document.
+    bool mbListeningToDocument;
+    /// Remember whether we are listening to the UNO document.
+    bool mbListeningToUNODocument;
+    /// Remember whether we are listening to the UNO controller.
+    bool mbListeningToController;
+    /// Remember whether we are listening to the frame.
+    bool mbListeningToFrame;
+    bool mbIsMainViewChangePending;
+
+    css::uno::WeakReference< css::frame::XController> mxControllerWeak;
+    css::uno::WeakReference< css::frame::XFrame> mxFrameWeak;
+
+    /** This object is used to lock the model between some
+        events.  It is references counted in order to cope with events that
+        are expected but never sent.
+    */
+    std::shared_ptr<SlideSorterController::ModelChangeLock> mpModelChangeLock;
+
+    void ReleaseListeners();
+
+    /** Called when the edit mode has changed.  Update model accordingly.
+    */
+    void UpdateEditMode();
+
+    /** Handle a change in the order of slides or when the set of slides has
+        changed, i.e. a slide has been created.
+    */
+    void HandleModelChange (const SdrPage* pPage);
+
+    /** Handle a modification to a shape on the given page.  When this is a
+        regular page then update its preview.  When it is a master page then
+        additionally update the previews of all pages linked to it.
+    */
+    void HandleShapeModification (const SdrPage* pPage);
+
+    DECL_LINK(EventMultiplexerCallback, tools::EventMultiplexerEvent&, void);
+};
+
+} // end of namespace ::sd::slidesorter::controller
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */