/**
* Sets the dirty state of the right side of this viewer. If the new value differs from the old
* all registered listener are notified with a <code>PropertyChangeEvent</code> with the property
* name <code>CompareEditorInput.DIRTY_STATE</code>.
*
* @param dirty the state of the right side dirty flag
*/
protected void setRightDirty(boolean dirty) {
if (isRightDirty() != dirty) {
fRightSaveAction.setEnabled(dirty);
// Only fire the event if the combined dirty state has changed
if ((!isRightDirty() && !isLeftDirty()) || (isRightDirty() && !isLeftDirty()))
fireDirtyState(dirty);
}
}
/**
* 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();
}
};
}
/**
* Return the dirty state of the left side of this viewer.
*
* @return the dirty state of the left side of this viewer
* @since 3.3
*/
protected boolean isLeftDirty() {
return fLeftSaveAction.isEnabled();
}
/**
* Return the dirty state of the right side of this viewer.
*
* @return the dirty state of the right side of this viewer
* @since 3.3
*/
protected boolean isRightDirty() {
return fRightSaveAction.isEnabled();
}