Find/replace overlay: allow pasting into replace input field eclipse-…

…platform#2509

While actions of the target editor are properly deactivated when the
find input field of the FindReplaceOverlay has focus, the same does not
happen for the replace input field. In consequence, for example, you
cannot paste clipboard content into the replace input field via the
according keyboard shortcut (CTRL+V).

With this change, the functionality to deactivate target editor actions
is also applied when the the replace input field has focus, in addition
to the find input field.

Contributes to
eclipse-platform#2509

bundles/org.eclipse.ui.workbench.texteditor/src/org/eclipse/ui/internal/findandreplace/overlay/FindReplaceOverlay.java

@@ -147,6 +147,37 @@ private final class KeyboardShortcuts {
 	private ControlDecoration searchBarDecoration;
 	private ContentAssistCommandAdapter contentAssistSearchField, contentAssistReplaceField;
 
+	private FocusListener inputFieldTargetActionActivation = new FocusListener() {
+		@Override
+		public void focusGained(FocusEvent e) {
+			setTextEditorActionsActivated(false);
+		}
+
+		@Override
+		public void focusLost(FocusEvent e) {
+			setTextEditorActionsActivated(true);
+		}
+
+		/*
+		 * Adapted from
+		 * org.eclipse.jdt.internal.ui.javaeditor.JavaEditor#setActionsActivated(
+		 * boolean)
+		 */
+		private void setTextEditorActionsActivated(boolean state) {
+			if (!(targetPart instanceof AbstractTextEditor)) {
+				return;
+			}
+			try {
+				Method method = AbstractTextEditor.class.getDeclaredMethod("setActionActivation", boolean.class); //$NON-NLS-1$
+				method.setAccessible(true);
+				method.invoke(targetPart, Boolean.valueOf(state));
+			} catch (IllegalArgumentException | InvocationTargetException | IllegalAccessException | SecurityException | NoSuchMethodException ex) {
+				TextEditorPlugin.getDefault().getLog()
+						.log(Status.error("cannot (de-)activate actions for text editor", ex)); //$NON-NLS-1$
+			}
+		}
+	};
+
 	public FindReplaceOverlay(Shell parent, IWorkbenchPart part, IFindReplaceTarget target) {
 		targetPart = part;
 		targetControl = getTargetControl(parent, part);
@@ -560,39 +591,16 @@ private void createSearchBar() {
 			showUserFeedback(normalTextForegroundColor, true);
 			updateIncrementalSearch();
 		});
+		searchBar.addFocusListener(inputFieldTargetActionActivation);
 		searchBar.addFocusListener(new FocusListener() {
-
 			@Override
 			public void focusGained(FocusEvent e) {
 				findReplaceLogic.resetIncrementalBaseLocation();
-				setTextEditorActionsActivated(false);
 			}
-
 			@Override
 			public void focusLost(FocusEvent e) {
 				showUserFeedback(normalTextForegroundColor, false);
-				setTextEditorActionsActivated(true);
 			}
-
-			/*
-			 * Adapted from
-			 * org.eclipse.jdt.internal.ui.javaeditor.JavaEditor#setActionsActivated(
-			 * boolean)
-			 */
-			private void setTextEditorActionsActivated(boolean state) {
-				if (!(targetPart instanceof AbstractTextEditor)) {
-					return;
-				}
-				try {
-					Method method = AbstractTextEditor.class.getDeclaredMethod("setActionActivation", boolean.class); //$NON-NLS-1$
-					method.setAccessible(true);
-					method.invoke(targetPart, Boolean.valueOf(state));
-				} catch (IllegalArgumentException | InvocationTargetException | IllegalAccessException | SecurityException | NoSuchMethodException ex) {
-					TextEditorPlugin.getDefault().getLog()
-							.log(Status.error("cannot (de-)activate actions for text editor", ex)); //$NON-NLS-1$
-				}
-			}
-
 		});
 		searchBar.setMessage(FindReplaceMessages.FindReplaceOverlay_searchBar_message);
 		contentAssistSearchField = createContentAssistField(searchBar, true);
@@ -618,6 +626,7 @@ private void createReplaceBar() {
 		replaceBar.addModifyListener(e -> {
 			findReplaceLogic.setReplaceString(replaceBar.getText());
 		});
+		replaceBar.addFocusListener(inputFieldTargetActionActivation);
 		replaceBar.addFocusListener(FocusListener.focusLostAdapter(e -> {
 			replaceBar.setForeground(normalTextForegroundColor);
 			searchBar.setForeground(normalTextForegroundColor);