/**
* Returns the (non-<code>null</code>) name of the left or right side if they are identical.
* Otherwise both names are concatenated (separated with a slash ('/')).
*
* <p>Subclasses may re-implement to provide a different name for this node.
*
* @return the name of this node.
*/
public String getName() {
String right = null;
if (fRight != null) right = fRight.getName();
String left = null;
if (fLeft != null) left = fLeft.getName();
if (right == null && left == null) {
if (fAncestor != null) return fAncestor.getName();
return Utilities.getString("DiffNode.noName"); // $NON-NLS-1$
}
if (right == null) return left;
if (left == null) return right;
if (right.equals(left)) return right;
String s1;
String s2;
if (fSwapSides) {
s1 = left;
s2 = right;
} else {
s1 = right;
s2 = left;
}
String fmt = Utilities.getString("DiffNode.nameFormat"); // $NON-NLS-1$
return MessageFormat.format(fmt, new String[] {s1, s2});
}
/**
* This method is called from the <code>Viewer</code> method <code>inputChanged</code> to save any
* unsaved changes of the old input.
*
* <p>The <code>ContentMergeViewer</code> implementation of this method calls <code>
* saveContent(...)</code>. If confirmation has been turned on with <code>setConfirmSave(true)
* </code>, a confirmation alert is posted before saving. Clients can override this method and are
* free to decide whether they want to call the inherited method.
*
* @param newInput the new input of this viewer, or <code>null</code> if there is no new input
* @param oldInput the old input element, or <code>null</code> if there was previously no input
* @return <code>true</code> if saving was successful, or if the user didn't want to save (by
* pressing 'NO' in the confirmation dialog).
* @since 2.0
*/
protected boolean doSave(Object newInput, Object oldInput) {
// before setting the new input we have to save the old
if (isLeftDirty() || isRightDirty()) {
if (Utilities.RUNNING_TESTS) {
if (Utilities.TESTING_FLUSH_ON_COMPARE_INPUT_CHANGE) {
flushContent(oldInput, null);
}
} else if (fConfirmSave) {
// post alert
Shell shell = fComposite.getShell();
MessageDialog dialog =
new MessageDialog(
shell,
Utilities.getString(getResourceBundle(), "saveDialog.title"), // $NON-NLS-1$
null, // accept the default window icon
Utilities.getString(getResourceBundle(), "saveDialog.message"), // $NON-NLS-1$
MessageDialog.QUESTION,
new String[] {
IDialogConstants.YES_LABEL, IDialogConstants.NO_LABEL,
},
0); // default
// button
// index
switch (dialog.open()) { // open returns index of pressed button
case 0:
flushContent(oldInput, null);
break;
case 1:
setLeftDirty(false);
setRightDirty(false);
break;
case 2:
throw new ViewerSwitchingCancelled();
}
} else flushContent(oldInput, null);
return true;
}
return false;
}
/**
* Returns the viewer's name.
*
* @return the viewer's name
*/
public String getTitle() {
return Utilities.getString(getResourceBundle(), "title"); // $NON-NLS-1$
}