loplugin:unocast (sdext::presenter::PresenterNotesView)

(See the upcoming commit introducing that loplugin:unocast on why such
dynamic_casts from UNO types are dangerous.)

Change-Id: Iee184c75fb5d4a8f00b932c001df023de795c469
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/144144
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>

sdext/source/presenter/PresenterAccessibility.cxx

@@ -38,6 +38,7 @@
 #include <com/sun/star/drawing/framework/XPane.hpp>
 #include <com/sun/star/drawing/framework/XView.hpp>
 #include <com/sun/star/lang/IndexOutOfBoundsException.hpp>
+#include <comphelper/servicehelper.hxx>
 #include <cppuhelper/compbase.hxx>
 #include <cppuhelper/implbase.hxx>
 #include <o3tl/safeint.hxx>
@@ -513,7 +514,7 @@ void PresenterAccessible::UpdateAccessibilityHierarchy()
     if (pNotesPane)
         xNotesView = pNotesPane->mxView;
     rtl::Reference<PresenterNotesView> pNotesView (
-        dynamic_cast<PresenterNotesView*>(xNotesView.get()));
+        comphelper::getFromUnoTunnel<PresenterNotesView>(xNotesView));
 
     UpdateAccessibilityHierarchy(
         pPreviewPane ? pPreviewPane->mxContentWindow : Reference<awt::XWindow>(),

sdext/source/presenter/PresenterNotesView.cxx

@@ -37,6 +37,7 @@
 #include <com/sun/star/rendering/CompositeOperation.hpp>
 #include <com/sun/star/rendering/XSpriteCanvas.hpp>
 #include <com/sun/star/text/XTextRange.hpp>
+#include <comphelper/servicehelper.hxx>
 
 using namespace ::com::sun::star;
 using namespace ::com::sun::star::uno;
@@ -376,6 +377,15 @@ void SAL_CALL PresenterNotesView::keyPressed (const awt::KeyEvent& rEvent)
 
 void SAL_CALL PresenterNotesView::keyReleased (const awt::KeyEvent&) {}
 
+sal_Int64 PresenterNotesView::getSomething(css::uno::Sequence<sal_Int8> const & aIdentifier) {
+    return comphelper::getSomethingImpl(aIdentifier, this);
+}
+
+css::uno::Sequence<sal_Int8> const & PresenterNotesView::getUnoTunnelId() {
+    static comphelper::UnoIdInit const id;
+    return id.getSeq();
+}
+
 
 void PresenterNotesView::Layout()
 {

sdext/source/presenter/PresenterNotesView.hxx

@@ -31,6 +31,7 @@
 #include <com/sun/star/drawing/framework/XView.hpp>
 #include <com/sun/star/drawing/framework/XResourceId.hpp>
 #include <com/sun/star/frame/XController.hpp>
+#include <com/sun/star/lang/XUnoTunnel.hpp>
 #include <rtl/ref.hxx>
 #include <memory>
 
@@ -45,7 +46,8 @@ typedef cppu::WeakComponentImplHelper<
     css::awt::XPaintListener,
     css::drawing::framework::XView,
     css::drawing::XDrawView,
-    css::awt::XKeyListener
+    css::awt::XKeyListener,
+    css::lang::XUnoTunnel
     > PresenterNotesViewInterfaceBase;
 
 /** A drawing framework view of the notes of a slide.  At the moment this is
@@ -117,6 +119,9 @@ public:
     virtual void SAL_CALL keyPressed (const css::awt::KeyEvent& rEvent) override;
     virtual void SAL_CALL keyReleased (const css::awt::KeyEvent& rEvent) override;
 
+    sal_Int64 SAL_CALL getSomething(css::uno::Sequence<sal_Int8> const & aIdentifier) override;
+    static css::uno::Sequence<sal_Int8> const & getUnoTunnelId();
+
 private:
     css::uno::Reference<css::drawing::framework::XResourceId> mxViewId;
     ::rtl::Reference<PresenterController> mpPresenterController;

sdext/source/presenter/PresenterProtocolHandler.cxx

@@ -24,6 +24,7 @@
 #include "PresenterPaneContainer.hxx"
 #include "PresenterViewFactory.hxx"
 #include "PresenterWindowManager.hxx"
+#include <comphelper/servicehelper.hxx>
 #include <cppuhelper/compbase.hxx>
 #include <cppuhelper/supportsservice.hxx>
 #include <algorithm>
@@ -792,7 +793,7 @@ NotesFontSizeCommand::NotesFontSizeCommand(
     if (!pDescriptor)
         return nullptr;
 
-    return dynamic_cast<PresenterNotesView*>(pDescriptor->mxView.get());
+    return comphelper::getFromUnoTunnel<PresenterNotesView>(pDescriptor->mxView);
 }
 
 void NotesFontSizeCommand::Execute()