ProjectDiagramWorkbenchDocks.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.project.client.screens;

import java.util.logging.Level;
import java.util.logging.Logger;
import javax.enterprise.context.Dependent;
import javax.enterprise.event.Observes;
import javax.inject.Inject;

import com.google.gwt.logging.client.LogConfiguration;
import org.uberfire.client.workbench.docks.UberfireDock;
import org.uberfire.client.workbench.docks.UberfireDockPosition;
import org.uberfire.client.workbench.docks.UberfireDockReadyEvent;
import org.uberfire.client.workbench.docks.UberfireDocks;
import org.uberfire.mvp.impl.DefaultPlaceRequest;

// TODO: i18n.
@Dependent
public class ProjectDiagramWorkbenchDocks {

    private static Logger LOGGER = Logger.getLogger(ProjectDiagramWorkbenchDocks.class.getName());
    private final static UberfireDockPosition POSITION = UberfireDockPosition.EAST;

    private final UberfireDocks uberfireDocks;
    String perspectiveId;
    boolean enabled;
    boolean attached;
    private UberfireDock propertiesDock;
    private UberfireDock explorerDock;

    protected ProjectDiagramWorkbenchDocks() {
        this(null);
    }

    @Inject
    public ProjectDiagramWorkbenchDocks(final UberfireDocks uberfireDocks) {
        this.uberfireDocks = uberfireDocks;
        this.attached = false;
        this.enabled = false;
    }

    public void setup(final String perspectiveId) {
        this.perspectiveId = perspectiveId;
    }

    public void enableDocks() {
        if (!isEnabled()) {
            log(Level.INFO,
                "Enabling docks");
            uberfireDocks.enable(POSITION,
                                 perspectiveId);
            this.enabled = true;
        }
    }

    public void disableDocks() {
        if (isEnabled()) {
            log(Level.INFO,
                "Disabling docks");
            // TODO: Ask to walter - uberfireDocks.disable( POSITION, perspectiveId );
            uberfireDocks.disable(POSITION,
                                  perspectiveId);
            this.enabled = false;
        }
    }

    public boolean isEnabled() {
        return enabled;
    }

    private void attachDocks() {
        if (null == propertiesDock) {
            propertiesDock = createPropertiesDock(perspectiveId);
        }
        if (null == explorerDock) {
            explorerDock = createExplorerDock(perspectiveId);
        }
        if (!attached) {
            log(Level.INFO,
                "Attaching docks");
            uberfireDocks.add(propertiesDock);
            uberfireDocks.add(explorerDock);
            attached = true;
        }
    }

    private void detachDocks() {
        if (attached) {
            log(Level.INFO,
                "Detaching docks");
            if (null != propertiesDock) {
                uberfireDocks.remove(propertiesDock);
            }
            if (null != explorerDock) {
                uberfireDocks.remove(explorerDock);
            }
            attached = false;
        }
    }

    void onDockReadyEvent(final @Observes UberfireDockReadyEvent dockReadyEvent) {
        final String currentPerspectiveId = dockReadyEvent.getCurrentPerspective();
        if (null != currentPerspectiveId && currentPerspectiveId.equals(this.perspectiveId)) {
            attachDocks();
        } else {
            detachDocks();
        }
    }

    private UberfireDock createPropertiesDock(final String perspectiveId) {
        return new UberfireDock(POSITION,
                                "PENCIL_SQUARE_O",
                                new DefaultPlaceRequest(ProjectDiagramPropertiesScreen.SCREEN_ID),
                                perspectiveId)
                .withSize(450)
                .withLabel("Properties");
    }

    private UberfireDock createExplorerDock(final String perspectiveId) {
        return new UberfireDock(POSITION,
                                "EYE",
                                new DefaultPlaceRequest(ProjectDiagramExplorerScreen.SCREEN_ID),
                                perspectiveId)
                .withSize(450)
                .withLabel("Explore");
    }

    private void log(final Level level,
                     final String message) {
        if (LogConfiguration.loggingIsEnabled()) {
            LOGGER.log(level,
                       message);
        }
    }
}