/*
* Copyright 2012 JBoss Inc
*
* 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.drools.workbench.screens.enums.client.editor;
import java.util.List;
import javax.enterprise.context.Dependent;
import javax.enterprise.event.Event;
import javax.enterprise.event.Observes;
import javax.enterprise.inject.New;
import javax.inject.Inject;
import com.google.gwt.user.client.ui.IsWidget;
import org.drools.workbench.screens.enums.client.resources.i18n.EnumEditorConstants;
import org.drools.workbench.screens.enums.client.type.EnumResourceType;
import org.drools.workbench.screens.enums.model.EnumModelContent;
import org.drools.workbench.screens.enums.service.EnumService;
import org.guvnor.common.services.shared.metadata.MetadataService;
import org.guvnor.common.services.shared.validation.model.ValidationMessage;
import org.guvnor.common.services.shared.version.events.RestoreEvent;
import org.jboss.errai.common.client.api.Caller;
import org.jboss.errai.common.client.api.RemoteCallback;
import org.kie.uberfire.client.callbacks.DefaultErrorCallback;
import org.kie.uberfire.client.callbacks.HasBusyIndicatorDefaultErrorCallback;
import org.kie.uberfire.client.common.MultiPageEditor;
import org.kie.uberfire.client.common.Page;
import org.kie.workbench.common.widgets.client.callbacks.CommandBuilder;
import org.kie.workbench.common.widgets.client.callbacks.CommandDrivenErrorCallback;
import org.kie.workbench.common.widgets.client.menu.FileMenuBuilder;
import org.kie.workbench.common.widgets.client.popups.file.CommandWithCommitMessage;
import org.kie.workbench.common.widgets.client.popups.file.SaveOperationService;
import org.kie.workbench.common.widgets.client.popups.validation.DefaultFileNameValidator;
import org.kie.workbench.common.widgets.client.popups.validation.ValidationPopup;
import org.kie.workbench.common.widgets.client.resources.i18n.CommonConstants;
import org.kie.workbench.common.widgets.metadata.client.callbacks.MetadataSuccessCallback;
import org.kie.workbench.common.widgets.metadata.client.widget.MetadataWidget;
import org.kie.workbench.common.widgets.viewsource.client.screen.ViewSourceView;
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.client.mvp.PlaceManager;
import org.uberfire.client.workbench.events.ChangeTitleWidgetEvent;
import org.uberfire.lifecycle.IsDirty;
import org.uberfire.lifecycle.OnClose;
import org.uberfire.lifecycle.OnMayClose;
import org.uberfire.lifecycle.OnSave;
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;
import org.uberfire.workbench.type.FileNameUtil;
import static org.kie.uberfire.client.common.ConcurrentChangePopup.*;
/**
* Enum Editor Presenter
*/
@Dependent
@WorkbenchEditor(identifier = "EnumEditor", supportedTypes = { EnumResourceType.class })
public class EnumEditorPresenter {
@Inject
private EnumEditorView view;
@Inject
private ViewSourceView viewSource;
@Inject
private MultiPageEditor multiPage;
@Inject
private Caller<EnumService> enumService;
@Inject
private Event<NotificationEvent> notification;
@Inject
private Event<ChangeTitleWidgetEvent> changeTitleNotification;
@Inject
private PlaceManager placeManager;
@Inject
private Caller<MetadataService> metadataService;
@Inject
private EnumResourceType type;
@Inject
private DefaultFileNameValidator fileNameValidator;
@Inject
@New
private FileMenuBuilder menuBuilder;
private Menus menus;
@Inject
private MetadataWidget metadataWidget;
private ObservablePath path;
private PlaceRequest place;
private boolean isReadOnly;
private String version;
private ObservablePath.OnConcurrentUpdateEvent concurrentUpdateSessionInfo = null;
@OnStartup
public void onStartup( final ObservablePath path,
final PlaceRequest place ) {
this.path = path;
this.place = place;
this.isReadOnly = place.getParameter( "readOnly", null ) == null ? false : true;
this.version = place.getParameter( "version", null );
this.path.onRename( new Command() {
@Override
public void execute() {
changeTitleNotification.fire( new ChangeTitleWidgetEvent( place, getTitle(), null ) );
}
} );
this.path.onDelete( new Command() {
@Override
public void execute() {
placeManager.forceClosePlace( place );
}
} );
this.path.onConcurrentUpdate( new ParameterizedCommand<ObservablePath.OnConcurrentUpdateEvent>() {
@Override
public void execute( final ObservablePath.OnConcurrentUpdateEvent eventInfo ) {
concurrentUpdateSessionInfo = eventInfo;
}
} );
this.path.onConcurrentRename( new ParameterizedCommand<ObservablePath.OnConcurrentRenameEvent>() {
@Override
public void execute( final ObservablePath.OnConcurrentRenameEvent info ) {
newConcurrentRename( info.getSource(),
info.getTarget(),
info.getIdentity(),
new Command() {
@Override
public void execute() {
disableMenus();
}
},
new Command() {
@Override
public void execute() {
reload();
}
}
).show();
}
} );
this.path.onConcurrentDelete( new ParameterizedCommand<ObservablePath.OnConcurrentDelete>() {
@Override
public void execute( final ObservablePath.OnConcurrentDelete info ) {
newConcurrentDelete( info.getPath(),
info.getIdentity(),
new Command() {
@Override
public void execute() {
disableMenus();
}
},
new Command() {
@Override
public void execute() {
placeManager.closePlace( place );
}
}
).show();
}
} );
makeMenuBar();
view.showBusyIndicator( CommonConstants.INSTANCE.Loading() );
loadContent();
}
private void reload() {
concurrentUpdateSessionInfo = null;
changeTitleNotification.fire( new ChangeTitleWidgetEvent( place, getTitle(), null ) );
view.showBusyIndicator( CommonConstants.INSTANCE.Loading() );
loadContent();
}
private void disableMenus() {
menus.getItemsMap().get( FileMenuBuilder.MenuItems.COPY ).setEnabled( false );
menus.getItemsMap().get( FileMenuBuilder.MenuItems.RENAME ).setEnabled( false );
menus.getItemsMap().get( FileMenuBuilder.MenuItems.DELETE ).setEnabled( false );
menus.getItemsMap().get( FileMenuBuilder.MenuItems.VALIDATE ).setEnabled( false );
}
private void loadContent() {
enumService.call( getModelSuccessCallback(),
new CommandDrivenErrorCallback( view,
new CommandBuilder().addNoSuchFileException( view,
multiPage,
menus ).build()
) ).loadContent( path );
}
private RemoteCallback<EnumModelContent> getModelSuccessCallback() {
return new RemoteCallback<EnumModelContent>() {
@Override
public void callback( final EnumModelContent response ) {
//Path is set to null when the Editor is closed (which can happen before async calls complete).
if ( path == null ) {
return;
}
multiPage.clear();
multiPage.addWidget( view,
CommonConstants.INSTANCE.EditTabTitle() );
multiPage.addPage( new Page( viewSource,
CommonConstants.INSTANCE.SourceTabTitle() ) {
@Override
public void onFocus() {
viewSource.setContent( view.getContent() );
}
@Override
public void onLostFocus() {
viewSource.clear();
}
} );
multiPage.addPage( new Page( metadataWidget,
CommonConstants.INSTANCE.MetadataTabTitle() ) {
@Override
public void onFocus() {
metadataWidget.showBusyIndicator( CommonConstants.INSTANCE.Loading() );
metadataService.call( new MetadataSuccessCallback( metadataWidget,
isReadOnly ),
new HasBusyIndicatorDefaultErrorCallback( metadataWidget ) ).getMetadata( path );
}
@Override
public void onLostFocus() {
//Nothing to do
}
} );
view.setContent( response.getModel().getDRL() );
view.hideBusyIndicator();
}
};
}
private void makeMenuBar() {
if ( isReadOnly ) {
menus = menuBuilder.addRestoreVersion( path ).build();
} else {
menus = menuBuilder
.addSave( new Command() {
@Override
public void execute() {
onSave();
}
} )
.addCopy( path,
fileNameValidator )
.addRename( path,
fileNameValidator )
.addDelete( path )
.addValidate( onValidate() )
.build();
}
}
private Command onValidate() {
return new Command() {
@Override
public void execute() {
enumService.call( new RemoteCallback<List<ValidationMessage>>() {
@Override
public void callback( final List<ValidationMessage> results ) {
if ( results == null || results.isEmpty() ) {
notification.fire( new NotificationEvent( CommonConstants.INSTANCE.ItemValidatedSuccessfully(),
NotificationEvent.NotificationType.SUCCESS ) );
} else {
ValidationPopup.showMessages( results );
}
}
}, new DefaultErrorCallback() ).validate( path,
view.getContent() );
}
};
}
@OnSave
public void onSave() {
if ( isReadOnly ) {
view.alertReadOnly();
return;
}
if ( concurrentUpdateSessionInfo != null ) {
newConcurrentUpdate( concurrentUpdateSessionInfo.getPath(),
concurrentUpdateSessionInfo.getIdentity(),
new Command() {
@Override
public void execute() {
save();
}
},
new Command() {
@Override
public void execute() {
//cancel?
}
},
new Command() {
@Override
public void execute() {
reload();
}
}
).show();
} else {
save();
}
}
private void save() {
new SaveOperationService().save( path,
new CommandWithCommitMessage() {
@Override
public void execute( final String commitMessage ) {
view.showBusyIndicator( CommonConstants.INSTANCE.Saving() );
enumService.call( getSaveSuccessCallback(),
new HasBusyIndicatorDefaultErrorCallback( view ) ).save( path,
view.getContent(),
metadataWidget.getContent(),
commitMessage );
}
}
);
concurrentUpdateSessionInfo = null;
}
private RemoteCallback<Path> getSaveSuccessCallback() {
return new RemoteCallback<Path>() {
@Override
public void callback( final Path path ) {
view.setNotDirty();
view.hideBusyIndicator();
metadataWidget.resetDirty();
notification.fire( new NotificationEvent( CommonConstants.INSTANCE.ItemSavedSuccessfully() ) );
}
};
}
@IsDirty
public boolean isDirty() {
return view.isDirty() || metadataWidget.isDirty();
}
@OnClose
public void onClose() {
this.path = null;
}
@OnMayClose
public boolean checkIfDirty() {
if ( isDirty() ) {
return view.confirmClose();
}
return true;
}
@WorkbenchPartTitle
public String getTitle() {
String fileName = FileNameUtil.removeExtension( path,
type );
if ( version != null ) {
fileName = fileName + " v" + version;
}
return EnumEditorConstants.INSTANCE.EnumEditorTitle() + " [" + fileName + "]";
}
@WorkbenchPartView
public IsWidget getWidget() {
return multiPage;
}
@WorkbenchMenu
public Menus getMenus() {
return menus;
}
public void onRestore( @Observes RestoreEvent restore ) {
if ( path == null || restore == null || restore.getPath() == null ) {
return;
}
if ( path.equals( restore.getPath() ) ) {
loadContent();
notification.fire( new NotificationEvent( CommonConstants.INSTANCE.ItemRestored() ) );
}
}
}