Bug 552352 - Using SWAP in Compare editor loses changes and dirty status
Change-Id: Iab835c01242ede0a481d17cafd5f603746695317
Signed-off-by: Niraj Modi <niraj.modi@in.ibm.com>
diff --git a/bundles/org.eclipse.compare/compare/org/eclipse/compare/contentmergeviewer/ContentMergeViewer.java b/bundles/org.eclipse.compare/compare/org/eclipse/compare/contentmergeviewer/ContentMergeViewer.java
index cab519f..daa89d9 100644
--- a/bundles/org.eclipse.compare/compare/org/eclipse/compare/contentmergeviewer/ContentMergeViewer.java
+++ b/bundles/org.eclipse.compare/compare/org/eclipse/compare/contentmergeviewer/ContentMergeViewer.java
@@ -1,5 +1,5 @@
/*******************************************************************************
- * Copyright (c) 2000, 2018 IBM Corporation and others.
+ * Copyright (c) 2000, 2020 IBM Corporation and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
@@ -914,6 +914,17 @@
fSwitchLeftAndRight = new Action() {
@Override
public void run() {
+ /*
+ * Bug 552352: When comparing .txt files with corresponding .txt file editors
+ * closed and user modifies the content of one of the .txt file in the compare
+ * view and the compare state becomes 'dirty' and if followed by a 'Swap'
+ * action, modifications get lost. This data loss is considered a severe
+ * problem, so to avoid this modified data loss in this scenario, show a
+ * confirmation dialog to 'save' the file before swapping and let user decide
+ * and take a call on this. Note: Issue not seen with .java & .properties files.
+ */
+ doSave(null, getInput());
+
IPreferenceStore preferences = getCompareConfiguration().getPreferenceStore();
preferences.setValue(ComparePreferencePage.SWAPPED, !getCompareConfiguration().isMirrored());
if (preferences instanceof IPersistentPreferenceStore) {
