/**
* 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});
}
/**
* Callback that is invoked when a property in the compare configuration ( {@link
* #getCompareConfiguration()} changes.
*
* @param event the property change event
* @since 3.3
*/
protected void handlePropertyChangeEvent(PropertyChangeEvent event) {
String key = event.getProperty();
if (key.equals(ICompareUIConstants.PROP_ANCESTOR_VISIBLE)) {
fAncestorVisible =
Utilities.getBoolean(
getCompareConfiguration(),
ICompareUIConstants.PROP_ANCESTOR_VISIBLE,
fAncestorVisible);
fComposite.layout(true);
updateCursor(fLeftLabel, VERTICAL);
updateCursor(fDirectionLabel, HORIZONTAL | VERTICAL);
updateCursor(fRightLabel, VERTICAL);
return;
}
if (key.equals(ICompareUIConstants.PROP_IGNORE_ANCESTOR)) {
setAncestorVisibility(
false,
!Utilities.getBoolean(
getCompareConfiguration(), ICompareUIConstants.PROP_IGNORE_ANCESTOR, false));
return;
}
}
private void initializeToolbars(Composite parent) {
ToolBarManager tbm = CompareViewerPane.getToolBarManager(parent);
if (tbm != null) {
tbm.removeAll();
// define groups
tbm.add(new Separator("modes")); // $NON-NLS-1$
tbm.add(new Separator("merge")); // $NON-NLS-1$
tbm.add(new Separator("navigation")); // $NON-NLS-1$
CompareConfiguration cc = getCompareConfiguration();
if (cc.isRightEditable()) {
fCopyLeftToRightAction =
new Action() {
public void run() {
copy(true);
}
};
Utilities.initAction(
fCopyLeftToRightAction, getResourceBundle(), "action.CopyLeftToRight."); // $NON-NLS-1$
tbm.appendToGroup("merge", fCopyLeftToRightAction); // $NON-NLS-1$
fHandlerService.registerAction(
fCopyLeftToRightAction, "org.eclipse.compare.copyAllLeftToRight"); // $NON-NLS-1$
}
if (cc.isLeftEditable()) {
fCopyRightToLeftAction =
new Action() {
public void run() {
copy(false);
}
};
Utilities.initAction(
fCopyRightToLeftAction, getResourceBundle(), "action.CopyRightToLeft."); // $NON-NLS-1$
tbm.appendToGroup("merge", fCopyRightToLeftAction); // $NON-NLS-1$
fHandlerService.registerAction(
fCopyRightToLeftAction, "org.eclipse.compare.copyAllRightToLeft"); // $NON-NLS-1$
}
final ChangePropertyAction a =
new ChangePropertyAction(
fBundle,
getCompareConfiguration(),
"action.EnableAncestor.",
ICompareUIConstants.PROP_ANCESTOR_VISIBLE); // $NON-NLS-1$
a.setChecked(fAncestorVisible);
fAncestorItem = new ActionContributionItem(a);
fAncestorItem.setVisible(false);
tbm.appendToGroup("modes", fAncestorItem); // $NON-NLS-1$
tbm.getControl().addDisposeListener(a);
createToolItems(tbm);
updateToolItems();
tbm.update(true);
}
}
/**
* 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;
}
private void internalRefresh(Object input) {
IMergeViewerContentProvider content = getMergeContentProvider();
if (content == null) {
return;
}
Object ancestor = content.getAncestorContent(input);
boolean oldFlag = fIsThreeWay;
if (Utilities.isHunk(input)) {
fIsThreeWay = true;
} else if (input instanceof ICompareInput)
fIsThreeWay = (((ICompareInput) input).getKind() & Differencer.DIRECTION_MASK) != 0;
else fIsThreeWay = ancestor != null;
if (fAncestorItem != null) fAncestorItem.setVisible(fIsThreeWay);
if (fAncestorVisible && oldFlag != fIsThreeWay) fComposite.layout(true);
Object left = content.getLeftContent(input);
Object right = content.getRightContent(input);
updateContent(ancestor, left, right);
// https://bugs.eclipse.org/bugs/show_bug.cgi?id=453799
// Content provider may be disposed after call to updateContent()
content = getMergeContentProvider();
if (content == null) {
return;
}
updateHeader();
ToolBarManager tbm = CompareViewerPane.getToolBarManager(fComposite.getParent());
if (tbm != null) {
updateToolItems();
tbm.update(true);
tbm.getControl().getParent().layout(true);
}
}
/**
* Returns the viewer's name.
*
* @return the viewer's name
*/
public String getTitle() {
return Utilities.getString(getResourceBundle(), "title"); // $NON-NLS-1$
}
/**
* Creates a new content merge viewer and initializes with a resource bundle and a configuration.
*
* @param style SWT style bits
* @param bundle the resource bundle
* @param cc the configuration object
*/
protected ContentMergeViewer(int style, ResourceBundle bundle, CompareConfiguration cc) {
fStyles = style & ~(SWT.LEFT_TO_RIGHT | SWT.RIGHT_TO_LEFT); // remove
// BIDI
// direction
// bits
fBundle = bundle;
fAncestorVisible =
Utilities.getBoolean(cc, ICompareUIConstants.PROP_ANCESTOR_VISIBLE, fAncestorVisible);
fConfirmSave = Utilities.getBoolean(cc, CompareEditor.CONFIRM_SAVE_PROPERTY, fConfirmSave);
setContentProvider(new MergeViewerContentProvider(cc));
fCompareInputChangeListener =
new ICompareInputChangeListener() {
public void compareInputChanged(ICompareInput input) {
if (input == getInput()) {
handleCompareInputChange();
}
}
};
// Make sure the compare configuration is not null
if (cc == null) fCompareConfiguration = new CompareConfiguration();
else fCompareConfiguration = cc;
fPropertyChangeListener =
new IPropertyChangeListener() {
public void propertyChange(PropertyChangeEvent event) {
ContentMergeViewer.this.handlePropertyChangeEvent(event);
}
};
fCompareConfiguration.addPropertyChangeListener(fPropertyChangeListener);
fLeftSaveAction = new SaveAction(true);
fLeftSaveAction.setEnabled(false);
fRightSaveAction = new SaveAction(false);
fRightSaveAction.setEnabled(false);
// this is used to update the dirty status,if we use
// org.eclipse.php.internal.ui.compare.ContentMergeViewer,we will get a
// ClassCastException
cmv =
new org.eclipse.compare.contentmergeviewer.ContentMergeViewer(
fStyles, fBundle, fCompareConfiguration) {
@Override
protected void createControls(Composite composite) {}
@Override
protected void handleResizeAncestor(int x, int y, int width, int height) {}
@Override
protected void handleResizeLeftRight(
int x, int y, int leftWidth, int centerWidth, int rightWidth, int height) {}
@Override
protected void updateContent(Object ancestor, Object left, Object right) {}
@Override
protected void copy(boolean leftToRight) {}
@Override
protected byte[] getContents(boolean left) {
return null;
}
@Override
public boolean internalIsLeftDirty() {
return ContentMergeViewer.this.isLeftDirty();
}
@Override
public boolean internalIsRightDirty() {
return ContentMergeViewer.this.isRightDirty();
}
};
}
private void fireDirtyState(boolean state) {
Utilities.firePropertyChange(
fListenerList, cmv, CompareEditorInput.DIRTY_STATE, null, new Boolean(state));
}