@Override
public void onDocumentChange(final DocumentChangeEvent event) {
if (documentHandle == null || !documentHandle.isSameAs(event.getDocument())) {
return;
}
createDirtyRegion(event);
autoSaveTimer.cancel();
autoSaveTimer.schedule(DELAY);
}
/**
* Creates a dirty region for a document event and adds it to the queue.
*
* @param event the document event for which to create a dirty region
*/
private void createDirtyRegion(final DocumentChangeEvent event) {
if (event.getLength() == 0 && event.getText() != null) {
// Insert
dirtyRegionQueue.addDirtyRegion(
new DirtyRegion(
event.getOffset(), event.getText().length(), DirtyRegion.INSERT, event.getText()));
} else if (event.getText() == null || event.getText().length() == 0) {
// Remove
dirtyRegionQueue.addDirtyRegion(
new DirtyRegion(event.getOffset(), event.getLength(), DirtyRegion.REMOVE, null));
} else {
// Replace (Remove + Insert)
dirtyRegionQueue.addDirtyRegion(
new DirtyRegion(event.getOffset(), event.getLength(), DirtyRegion.REMOVE, null));
dirtyRegionQueue.addDirtyRegion(
new DirtyRegion(
event.getOffset(), event.getText().length(), DirtyRegion.INSERT, event.getText()));
}
}