Bug 1457 - Transport Menu "Scrub" and "Seek" do not correctly indicate when either Scrubbing mode is active

src/tracks/ui/Scrubbing.cpp

@@ -281,6 +281,7 @@ void Scrubber::MarkScrubStart(
    mProject->SetAudioIOToken(0);
 
    mSeeking = seek;
+   CheckMenuItems();
 
    ctb->SetPlay(true, ControlToolBar::PlayAppearance::Straight );
    // Commented out for Bug 1421
@@ -291,7 +292,6 @@ void Scrubber::MarkScrubStart(
    mScrubStartPosition = xx;
    ctb->UpdateStatusBar(mProject);
    mOptions.startClockTimeMillis = ::wxGetLocalTimeMillis();
-
    mCancelled = false;
 }
 
@@ -891,6 +891,7 @@ void Scrubber::OnScrubOrSeek(bool seek)
    }
 
    mSeeking = seek;
+   CheckMenuItems();
 
    auto ruler = mProject->GetRulerPanel();
    if (ruler)

src/tracks/ui/Scrubbing.h

@@ -136,11 +136,11 @@ public:
 
    void Pause(bool paused);
    bool IsPaused() const;
+   void CheckMenuItems();
 
 private:
    void DoScrub(bool seek);
    void OnActivateOrDeactivateApp(wxActivateEvent & event);
-   void CheckMenuItems();
 
    // I need this because I can't push the scrubber as an event handler
    // in two places at once.