SIL.FieldWorks.IText.InterlinDocForAnalysis.SelectOccurrence C# (CSharp) Method

		public override void SelectOccurrence(AnalysisOccurrence target)
		{
			if (target == null)
			{
				TryHideFocusBoxAndUninstall();
				return;
			}
			if (SelectedOccurrence == target && IsFocusBoxInstalled)
			{
				// Don't steal the focus from another window.  See FWR-1795.
				if (ParentForm == Form.ActiveForm)
				{
					if (ExistingFocusBox.CanFocus)
					{
						ExistingFocusBox.Focus(); // important when switching tabs with ctrl-tab.
					}
					else
					{
						VisibleChanged += FocusWhenVisible;
					}
				}
				return;
			}
			if (!m_vc.CanBeAnalyzed(target))
				return;
#if DEBUG
			// test preconditions.
			Debug.Assert(target.IsValid && !(target.Analysis is IPunctuationForm), "Given annotation type should not be punctuation"
				+ " but was " + target.Analysis.ShortName + ".");
#endif
			TriggerAnnotationSelected(target, true);
		}

            public override bool Redo()
            {
                if (m_newOccurrence != null && m_newOccurrence.IsValid)
                {
                    m_interlinDoc.SelectOccurrence(m_newOccurrence);
                }
                else
                {
                    m_interlinDoc.TryHideFocusBoxAndUninstall();
                }

                return(true);
            }