You can implement your own handler for actions like typing, delete or paste by providing an implementation of ro.sync.ecss.extensions.api.AuthorSchemaAwareEditingHandler. The Schema Aware Editing must be On or Custom in order for this handler to be called. The handler can either resolve a specific case, let the default implementation take place or reject the edit entirely by throwing an InvalidEditException.
package simple.documentation.framework.extensions;
/**
* Specific editing support for SDF documents.
* Handles typing and paste events inside section and tables.
*/
public class SDFSchemaAwareEditingHandler implements AuthorSchemaAwareEditingHandler {
Typing events can be handled using the handleTyping method. For example, the SDFSchemaAwareEditingHandler checks if the schema is not a learned one, was loaded successfully and Smart Paste is active. If these conditions are met, the event will be handled.
/**
* @see ro.sync.ecss.extensions.api.AuthorSchemaAwareEditingHandler#handleTyping(int, char, ro.sync.ecss.extensions.api.AuthorAccess)
*/
public boolean handleTyping(int offset, char ch, AuthorAccess authorAccess)
throws InvalidEditException {
boolean handleTyping = false;
AuthorSchemaManager authorSchemaManager = authorAccess.getDocumentController().getAuthorSchemaManager();
if (!authorSchemaManager.isLearnSchema() &&
!authorSchemaManager.hasLoadingErrors() &&
authorSchemaManager.getAuthorSchemaAwareOptions().isEnableSmartTyping()) {
try {
AuthorDocumentFragment characterFragment =
authorAccess.getDocumentController().createNewDocumentTextFragment(String.valueOf(ch));
handleTyping = handleInsertionEvent(offset, new AuthorDocumentFragment[] {characterFragment}, authorAccess);
} catch (AuthorOperationException e) {
throw new InvalidEditException(e.getMessage(), "Invalid typing event: " + e.getMessage(), e, false);
}
}
return handleTyping;
}
Implementing the AuthorSchemaAwareEditingHandler gives the possibility to handle other events like: the keyboard delete event at the given offset (using Delete or Backspace keys), delete element tags, delete selection, join elements or paste fragment.