WelcomeScreen.java

/*
 * Copyright 2017 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.stunner.standalone.client.screens;

import javax.annotation.PostConstruct;
import javax.enterprise.context.Dependent;

import com.google.gwt.user.client.ui.FlowPanel;
import com.google.gwt.user.client.ui.IsWidget;
import org.gwtbootstrap3.client.ui.Heading;
import org.gwtbootstrap3.client.ui.constants.HeadingSize;
import org.kie.workbench.common.stunner.core.client.util.StunnerClientLogger;
import org.uberfire.client.annotations.WorkbenchContextId;
import org.uberfire.client.annotations.WorkbenchMenu;
import org.uberfire.client.annotations.WorkbenchPartTitle;
import org.uberfire.client.annotations.WorkbenchPartView;
import org.uberfire.client.annotations.WorkbenchScreen;
import org.uberfire.lifecycle.OnClose;
import org.uberfire.lifecycle.OnOpen;
import org.uberfire.lifecycle.OnStartup;
import org.uberfire.mvp.PlaceRequest;
import org.uberfire.workbench.model.menu.MenuFactory;
import org.uberfire.workbench.model.menu.Menus;

@Dependent
@WorkbenchScreen(identifier = WelcomeScreen.SCREEN_ID)
public class WelcomeScreen {

    public static final String SCREEN_ID = "WelcomeScreen";

    private class View extends FlowPanel {

        public View(final String tag) {
            super(tag);
            init();
        }

        public View() {
            init();
        }

        private void init() {
            add(new Heading(HeadingSize.H1,
                            "Welcome to Stunner!"));
        }
    }

    private Menus menu = null;
    private View view = new View();

    @PostConstruct
    public void init() {
    }

    @OnStartup
    public void onStartup(final PlaceRequest placeRequest) {
        this.menu = makeMenuBar();
    }

    private Menus makeMenuBar() {
        return MenuFactory
                .newTopLevelMenu("Switch log level")
                .respondsWith(StunnerClientLogger::switchLogLevel)
                .endMenu()
                .build();
    }

    @OnOpen
    public void onOpen() {
    }

    @OnClose
    public void onClose() {
    }

    @WorkbenchMenu
    public Menus getMenu() {
        return menu;
    }

    @WorkbenchPartTitle
    public String getTitle() {
        return "Welcome";
    }

    @WorkbenchPartView
    public IsWidget getWidget() {
        return view;
    }

    @WorkbenchContextId
    public String getMyContextRef() {
        return "welcomeScreenContext";
    }
}