/*******************************************************************************
* Copyright (c) 2012-2017 Codenvy, S.A.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Codenvy, S.A. - initial API and implementation
*******************************************************************************/
package org.eclipse.che.ide.api.editor;
import com.google.gwt.user.client.rpc.AsyncCallback;
import com.google.gwt.user.client.ui.IsWidget;
import org.eclipse.che.ide.api.parts.AbstractPartPresenter;
import org.eclipse.che.ide.api.editor.EditorAgent.OpenEditorCallback;
import javax.validation.constraints.NotNull;
import java.util.ArrayList;
import java.util.List;
/**
* Abstract implementation of {@link EditorPartPresenter} that is intended
* to be used by subclassing instead of directly implementing an interface.
*
* @author Evgen Vidolob
* @author Dmitry Shnurenko
*/
public abstract class AbstractEditorPresenter extends AbstractPartPresenter implements EditorPartPresenter {
protected boolean dirtyState;
protected EditorInput input;
protected final List<EditorPartCloseHandler> closeHandlers = new ArrayList<>();
/** {@inheritDoc} */
@Override
public void init(@NotNull EditorInput input, final OpenEditorCallback callback) {
this.input = input;
initializeEditor(callback);
}
/** Initializes this editor. */
protected abstract void initializeEditor(final OpenEditorCallback callback);
/**
* Set dirty state and notify expressions
*
* @param dirty
*/
protected void updateDirtyState(boolean dirty) {
dirtyState = dirty;
firePropertyChange(EditorPartPresenter.TITLE_PROPERTY);
firePropertyChange(PROP_DIRTY);
}
/** {@inheritDoc} */
@Override
public IsWidget getView() {
throw new UnsupportedOperationException("This method isn't supported in this class " + getClass());
}
/** {@inheritDoc} */
@Override
public boolean isDirty() {
return dirtyState;
}
/** {@inheritDoc} */
@Override
public void addCloseHandler(@NotNull EditorPartCloseHandler closeHandler) {
if (!closeHandlers.contains(closeHandler)) {
closeHandlers.add(closeHandler);
}
}
/** {@inheritDoc} */
@Override
public EditorInput getEditorInput() {
return input;
}
protected void handleClose() {
for (EditorPartCloseHandler handler : closeHandlers) {
handler.onClose(this);
}
}
/** {@inheritDoc} */
@Override
public void onFileChanged() {
firePropertyChange(TITLE_PROPERTY);
}
@Override
public void onClosing(AsyncCallback<Void> callback) {
callback.onSuccess(null);
}
}