GuvnorDefaultEditorPresenter.java

/*
 * Copyright 2014 Red Hat, Inc. and/or its affiliates.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.kie.workbench.common.screens.defaulteditor.client.editor;

import javax.enterprise.context.Dependent;
import javax.enterprise.event.Event;
import javax.inject.Inject;

import com.google.gwt.user.client.ui.IsWidget;
import org.jboss.errai.common.client.api.Caller;
import org.jboss.errai.common.client.api.RemoteCallback;
import org.kie.workbench.common.screens.defaulteditor.service.DefaultEditorContent;
import org.kie.workbench.common.screens.defaulteditor.service.DefaultEditorService;
import org.kie.workbench.common.widgets.metadata.client.KieEditor;
import org.uberfire.backend.vfs.ObservablePath;
import org.uberfire.client.annotations.WorkbenchEditor;
import org.uberfire.client.annotations.WorkbenchMenu;
import org.uberfire.client.annotations.WorkbenchPartTitle;
import org.uberfire.client.annotations.WorkbenchPartTitleDecoration;
import org.uberfire.client.annotations.WorkbenchPartView;
import org.uberfire.client.workbench.type.AnyResourceType;
import org.uberfire.ext.editor.commons.client.validation.DefaultFileNameValidator;
import org.uberfire.ext.widgets.common.client.common.BusyIndicatorView;
import org.uberfire.lifecycle.OnClose;
import org.uberfire.lifecycle.OnStartup;
import org.uberfire.mvp.Command;
import org.uberfire.mvp.PlaceRequest;
import org.uberfire.workbench.events.NotificationEvent;
import org.uberfire.workbench.model.menu.Menus;

/**
 * A text based editor for Domain Specific Language definitions
 */
@Dependent
@WorkbenchEditor(identifier = "GuvnorDefaultFileEditor", supportedTypes = { AnyResourceType.class }, priority = -1)
public class GuvnorDefaultEditorPresenter
        extends KieEditor {

    private final GuvnorDefaultEditorView view;

    @Inject
    private Caller<DefaultEditorService> defaultEditorService;

    @Inject
    private Event<NotificationEvent> notification;

    @Inject
    private BusyIndicatorView busyIndicatorView;

    @Inject
    private DefaultFileNameValidator fileNameValidator;

    @Inject
    public GuvnorDefaultEditorPresenter( final GuvnorDefaultEditorView baseView ) {
        super( baseView );
        view = baseView;
    }

    @OnStartup
    public void onStartup( final ObservablePath path,
                           final PlaceRequest place ) {
        super.init( path,
                    place,
                    new AnyResourceType() );
        view.onStartup( path );
    }

    protected void makeMenuBar() {
        menus = menuBuilder
                .addCopy( versionRecordManager.getCurrentPath(),
                          fileNameValidator )
                .addRename( versionRecordManager.getCurrentPath(),
                            fileNameValidator )
                .addDelete( versionRecordManager.getCurrentPath() )
                .addNewTopLevelMenu( versionRecordManager.buildMenu() )
                .build();
    }

    @WorkbenchMenu
    public Menus getMenus() {
        return menus;
    }

    @OnClose
    public void onClose() {
        versionRecordManager.clear();
    }

    @WorkbenchPartTitle
    public String getTitleText() {
        return super.getTitleText();
    }

    @WorkbenchPartTitleDecoration
    public IsWidget getTitle() {
        return super.getTitle();
    }

    @Override
    protected void loadContent() {
        view.showLoading();
        defaultEditorService.call( getLoadSuccessCallback(),
                                   getNoSuchFileExceptionErrorCallback() ).loadContent( versionRecordManager.getCurrentPath() );
    }

    private RemoteCallback<DefaultEditorContent> getLoadSuccessCallback() {
        return new RemoteCallback<DefaultEditorContent>() {
            @Override
            public void callback( final DefaultEditorContent content ) {
                resetEditorPages( content.getOverview() );
                view.hideBusyIndicator();
            }
        };
    }

    @WorkbenchPartView
    public IsWidget getWidget() {
        return super.getWidget();
    }

    @Override
    protected Command onValidate() {
        return null;
    }

}