sfx2: make SfxLokHelper::setView() set also the active frame

Without this, comphelper::dispatchCommand() doesn't work on the current
frame. This causes e.g. undo not working when only a given view is
allowed to do undo.

In the desktop case vcl::Window::ImplGrabFocus() calls both
SfxViewFrame::MakeActive_Impl() and
framework::Desktop::setActiveFrame(), but in the LOK case the first was
called directly, that's how the active frame was outdated.

Change-Id: If97a9de316b4c8dd49e55cd273bdb2dfe9866f38
Reviewed-on: https://gerrit.libreoffice.org/28032Reviewed-by: Miklos Vajna <vmiklos@collabora.co.uk>
Tested-by: Jenkins <ci@libreoffice.org>

sfx2/source/view/lokhelper.cxx

@@ -11,12 +11,17 @@
 
 #include <boost/property_tree/json_parser.hpp>
 
+#include <com/sun/star/frame/Desktop.hpp>
+
+#include <comphelper/processfactory.hxx>
 #include <sfx2/viewsh.hxx>
 #include <sfx2/request.hxx>
 #include <sfx2/viewfrm.hxx>
 
 #include <shellimpl.hxx>
 
+using namespace com::sun::star;
+
 int SfxLokHelper::createView()
 {
     SfxViewFrame* pViewFrame = SfxViewFrame::GetFirst();
@@ -59,6 +64,11 @@ void SfxLokHelper::setView(int nId)
 
             SfxViewFrame* pViewFrame = pViewShell->GetViewFrame();
             pViewFrame->MakeActive_Impl(false);
+
+            // Make comphelper::dispatchCommand() find the correct frame.
+            uno::Reference<frame::XFrame> xFrame = pViewFrame->GetFrame().GetFrameInterface();
+            uno::Reference<frame::XDesktop2> xDesktop = frame::Desktop::create(comphelper::getProcessComponentContext());
+            xDesktop->setActiveFrame(xFrame);
             return;
         }
     }

sw/qa/extras/tiledrendering/tiledrendering.cxx

@@ -61,6 +61,7 @@ public:
     void testTextEditViewInvalidations();
     void testUndoInvalidations();
     void testUndoLimiting();
+    void testUndoDispatch();
     void testShapeTextUndoShells();
     void testShapeTextUndoGroupShells();
 
@@ -89,6 +90,7 @@ public:
     CPPUNIT_TEST(testTextEditViewInvalidations);
     CPPUNIT_TEST(testUndoInvalidations);
     CPPUNIT_TEST(testUndoLimiting);
+    CPPUNIT_TEST(testUndoDispatch);
     CPPUNIT_TEST(testShapeTextUndoShells);
     CPPUNIT_TEST(testShapeTextUndoGroupShells);
     CPPUNIT_TEST_SUITE_END();
@@ -923,6 +925,41 @@ void SwTiledRenderingTest::testUndoLimiting()
     comphelper::LibreOfficeKit::setActive(false);
 }
 
+void SwTiledRenderingTest::testUndoDispatch()
+{
+    // Load a document and create two views.
+    comphelper::LibreOfficeKit::setActive();
+    SwXTextDocument* pXTextDocument = createDoc("dummy.fodt");
+    int nView1 = SfxLokHelper::getView();
+    SfxLokHelper::createView();
+    pXTextDocument->initializeForTiledRendering(uno::Sequence<beans::PropertyValue>());
+    int nView2 = SfxLokHelper::getView();
+
+    // Insert a character in the first view.
+    SfxLokHelper::setView(nView1);
+    pXTextDocument->postKeyEvent(LOK_KEYEVENT_KEYINPUT, 'c', 0);
+    pXTextDocument->postKeyEvent(LOK_KEYEVENT_KEYUP, 'c', 0);
+
+    // Click before the first word in the second view.
+    SfxLokHelper::setView(nView2);
+    SwWrtShell* pWrtShell = pXTextDocument->GetDocShell()->GetWrtShell();
+    SwShellCursor* pShellCursor = pWrtShell->getShellCursor(false);
+    Point aStart = pShellCursor->GetSttPos();
+    aStart.setX(aStart.getX() - 1000);
+    pXTextDocument->postMouseEvent(LOK_MOUSEEVENT_MOUSEBUTTONDOWN, aStart.getX(), aStart.getY(), 1, MOUSE_LEFT, 0);
+    pXTextDocument->postMouseEvent(LOK_MOUSEEVENT_MOUSEBUTTONUP, aStart.getX(), aStart.getY(), 1, MOUSE_LEFT, 0);
+    uno::Reference<frame::XDesktop2> xDesktop = frame::Desktop::create(comphelper::getProcessComponentContext());
+    uno::Reference<frame::XFrame> xFrame2 = xDesktop->getActiveFrame();
+
+    // Now switch back to the first view, and make sure that the active frame is updated.
+    SfxLokHelper::setView(nView1);
+    uno::Reference<frame::XFrame> xFrame1 = xDesktop->getActiveFrame();
+    // This failed: setView() did not update the active frame.
+    CPPUNIT_ASSERT(xFrame1 != xFrame2);
+
+    comphelper::LibreOfficeKit::setActive(false);
+}
+
 void SwTiledRenderingTest::testShapeTextUndoShells()
 {
     // Load a document and create a view.