ProjectImportsScreenPresenter.java

/*
 * Copyright 2012 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.projectimportsscreen.client.forms;

import javax.inject.Inject;

import com.google.gwt.user.client.ui.IsWidget;
import org.guvnor.common.services.project.model.ProjectImports;
import org.jboss.errai.common.client.api.Caller;
import org.jboss.errai.common.client.api.RemoteCallback;
import org.kie.workbench.common.screens.projectimportsscreen.client.resources.i18n.ProjectConfigScreenConstants;
import org.kie.workbench.common.screens.projectimportsscreen.client.type.ProjectImportsResourceType;
import org.kie.workbench.common.services.shared.project.ProjectImportsContent;
import org.kie.workbench.common.services.shared.project.ProjectImportsService;
import org.kie.workbench.common.widgets.client.resources.i18n.CommonConstants;
import org.kie.workbench.common.widgets.metadata.client.KieEditor;
import org.uberfire.backend.vfs.ObservablePath;
import org.uberfire.backend.vfs.Path;
import org.uberfire.client.annotations.WorkbenchEditor;
import org.uberfire.client.annotations.WorkbenchMenu;
import org.uberfire.client.annotations.WorkbenchPartTitle;
import org.uberfire.client.annotations.WorkbenchPartView;
import org.uberfire.ext.widgets.common.client.callbacks.HasBusyIndicatorDefaultErrorCallback;
import org.uberfire.lifecycle.OnClose;
import org.uberfire.lifecycle.OnMayClose;
import org.uberfire.lifecycle.OnStartup;
import org.uberfire.mvp.Command;
import org.uberfire.mvp.ParameterizedCommand;
import org.uberfire.mvp.PlaceRequest;
import org.uberfire.workbench.events.NotificationEvent;
import org.uberfire.workbench.model.menu.Menus;

@WorkbenchEditor(identifier = "projectConfigScreen", supportedTypes = { ProjectImportsResourceType.class })
public class ProjectImportsScreenPresenter
        extends KieEditor {

    private ProjectImportsScreenView view;

    private Caller<ProjectImportsService> importsService;

    private ProjectImports model;

    public ProjectImportsScreenPresenter() {
    }

    @Inject
    public ProjectImportsScreenPresenter( final ProjectImportsScreenView view,
                                          final Caller<ProjectImportsService> importsService ) {
        super( view );
        this.view = view;
        this.importsService = importsService;
    }

    @OnStartup
    public void init( final ObservablePath path,
                      final PlaceRequest place ) {

        super.init( path,
                    place,
                    new ProjectImportsResourceType() );

    }

    private RemoteCallback<ProjectImportsContent> getModelSuccessCallback() {
        return new RemoteCallback<ProjectImportsContent>() {

            @Override
            public void callback( final ProjectImportsContent content ) {
                //Path is set to null when the Editor is closed (which can happen before async calls complete).
                if ( versionRecordManager.getCurrentPath() == null ) {
                    return;
                }

                model = content.getModel();

                resetEditorPages( content.getOverview() );

                view.setContent( model,
                                 isReadOnly );
                view.hideBusyIndicator();

                createOriginalHash( content.getModel() );
            }
        };
    }

    protected void makeMenuBar() {
        menus = menuBuilder
                .addSave( versionRecordManager.newSaveMenuItem( new Command() {
                    @Override
                    public void execute() {
                        onSave();
                    }
                } ) )
                .addCopy( versionRecordManager.getCurrentPath(),
                          fileNameValidator )
                .addRename( versionRecordManager.getPathToLatest(),
                            fileNameValidator )
                .addDelete( versionRecordManager.getPathToLatest() )
                .addNewTopLevelMenu( versionRecordManager.buildMenu() )
                .build();
    }

    @Override
    protected void loadContent() {
        importsService.call( getModelSuccessCallback(),
                             new HasBusyIndicatorDefaultErrorCallback( view ) ).loadContent( versionRecordManager.getCurrentPath() );
    }

    protected void save() {
        savePopUpPresenter.show( versionRecordManager.getCurrentPath(),
                                   new ParameterizedCommand<String>() {
                                       @Override
                                       public void execute( final String commitMessage ) {
                                           view.showSaving();
                                           importsService.call( getSaveSuccessCallback(),
                                                                new HasBusyIndicatorDefaultErrorCallback( view ) ).save( versionRecordManager.getCurrentPath(),
                                                                                                                         model,
                                                                                                                         metadata,
                                                                                                                         commitMessage );
                                       }
                                   }
                                 );

    }

    private RemoteCallback<Path> getSaveSuccessCallback() {
        return new RemoteCallback<Path>() {

            @Override
            public void callback( final Path path ) {
                view.hideBusyIndicator();
                notification.fire( new NotificationEvent( CommonConstants.INSTANCE.ItemSavedSuccessfully() ) );
                createOriginalHash( model );
            }
        };
    }

    @WorkbenchPartTitle
    public String getTitleText() {
        return ProjectConfigScreenConstants.INSTANCE.ExternalImports();
    }

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

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

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

    @OnMayClose
    public boolean mayClose() {
        return super.mayClose( model );
    }

}