Java tutorial
package com.constellio.app.ui.pages.base; import static com.constellio.app.ui.i18n.i18n.$; import java.util.ArrayList; import java.util.List; import elemental.json.JsonArray; import org.apache.commons.lang3.StringUtils; import com.constellio.app.api.extensions.params.PagesComponentsExtensionParams; import com.constellio.app.entities.navigation.NavigationItem; import com.constellio.app.modules.rm.ui.components.userDocument.UserDocumentsWindow; import com.constellio.app.services.factories.AppLayerFactory; import com.constellio.app.ui.application.ConstellioUI; import com.constellio.app.ui.application.CoreViews; import com.constellio.app.ui.application.Navigation; import com.constellio.app.ui.application.NavigatorConfigurationService; import com.constellio.app.ui.framework.components.ComponentState; import com.constellio.app.ui.pages.base.ConstellioMenuImpl.ConstellioMenuButton; import com.constellio.app.ui.util.ComponentTreeUtils; import com.vaadin.event.dd.DropHandler; import com.vaadin.navigator.Navigator; import com.vaadin.navigator.View; import com.vaadin.navigator.ViewChangeListener; import com.vaadin.server.ExternalResource; import com.vaadin.server.ThemeResource; import com.vaadin.shared.ui.label.ContentMode; import com.vaadin.ui.Button; import com.vaadin.ui.Button.ClickEvent; import com.vaadin.ui.Button.ClickListener; import com.vaadin.ui.Component; import com.vaadin.ui.CssLayout; import com.vaadin.ui.DragAndDropWrapper; import com.vaadin.ui.HorizontalLayout; import com.vaadin.ui.JavaScript; import com.vaadin.ui.JavaScriptFunction; import com.vaadin.ui.Label; import com.vaadin.ui.Link; import com.vaadin.ui.Panel; import com.vaadin.ui.SingleComponentContainer; import com.vaadin.ui.UI; import com.vaadin.ui.VerticalLayout; import com.vaadin.ui.themes.ValoTheme; /* * Dashboard MainView is a simple HorizontalLayout that wraps the menu on the * left and creates a simple container for the navigator on the right. */ @SuppressWarnings("serial") @com.vaadin.annotations.JavaScript("theme://Constellio.js") public class MainLayoutImpl extends VerticalLayout implements MainLayout { private MainLayoutPresenter presenter; private HorizontalLayout mainMenuContentFooterLayout; private CssLayout contentFooterWrapperLayout; private VerticalLayout contentFooterLayout; private ConstellioHeaderImpl header; private Component mainMenu; private SingleComponentContainer contentViewWrapper; private DragAndDropWrapper dragAndDropWrapper; private UserDocumentsWindow userDocumentsWindow; public MainLayoutImpl(AppLayerFactory appLayerFactory) { this.presenter = new MainLayoutPresenter(this); mainMenuContentFooterLayout = new HorizontalLayout(); mainMenuContentFooterLayout.setSizeFull(); mainMenuContentFooterLayout.addStyleName("main-menu-content-footer"); contentViewWrapper = new Panel(); Navigator navigator = new Navigator(UI.getCurrent(), contentViewWrapper); NavigatorConfigurationService navigatorConfigurationService = appLayerFactory .getNavigatorConfigurationService(); navigatorConfigurationService.configure(navigator); UI.getCurrent().setNavigator(navigator); contentFooterWrapperLayout = new CssLayout(); contentFooterWrapperLayout.setId("content-footer-wrapper"); contentFooterLayout = new VerticalLayout(); contentFooterLayout.addStyleName("content-footer"); header = buildHeader(); header.setSizeUndefined(); mainMenu = buildMainMenu(); userDocumentsWindow = new UserDocumentsWindow(); dragAndDropWrapper = new DragAndDropWrapper(mainMenuContentFooterLayout); dragAndDropWrapper.setSizeFull(); dragAndDropWrapper.setDropHandler(userDocumentsWindow); navigator.addViewChangeListener(new ViewChangeListener() { @Override public boolean beforeViewChange(ViewChangeEvent event) { return true; } @Override public void afterViewChange(ViewChangeEvent event) { View newView = event.getNewView(); if (newView instanceof NoDragAndDrop) { dragAndDropWrapper.setDropHandler(null); } else if (newView instanceof DropHandler) { dragAndDropWrapper.setDropHandler((DropHandler) newView); } else { List<DropHandler> viewDropHandlers = ComponentTreeUtils.getChildren((Component) newView, DropHandler.class); if (viewDropHandlers.size() > 1) { dragAndDropWrapper.setDropHandler(null); } else if (viewDropHandlers.size() == 1) { dragAndDropWrapper.setDropHandler(viewDropHandlers.get(0)); } else if (dragAndDropWrapper.getDropHandler() != userDocumentsWindow) { dragAndDropWrapper.setDropHandler(userDocumentsWindow); } } // SerializationUtils.clone(event.getOldView()); // SerializationUtils.clone(newView); } }); addComponent(header); addComponent(dragAndDropWrapper); setExpandRatio(dragAndDropWrapper, 1); mainMenuContentFooterLayout.addComponent(mainMenu); mainMenuContentFooterLayout.addComponent(contentFooterWrapperLayout); mainMenuContentFooterLayout.setExpandRatio(contentFooterWrapperLayout, 1); contentFooterWrapperLayout.addComponent(contentFooterLayout); contentFooterLayout.addComponent(contentViewWrapper); Component message = buildMessage(); if (message != null) { message.addStyleName("message"); contentFooterLayout.addComponent(message); } contentFooterLayout.setExpandRatio(contentViewWrapper, 1); Component footer = buildFooter(); if (footer != null) { contentFooterLayout.addComponent(footer); } Component license = buildLicense(); if (license != null) { license.addStyleName("license"); } PagesComponentsExtensionParams params = new PagesComponentsExtensionParams(header, mainMenu, contentFooterLayout, this, contentViewWrapper, contentFooterWrapperLayout, presenter.getUser()); appLayerFactory.getExtensions().getSystemWideExtensions().decorateView(params); String collection = ConstellioUI.getCurrentSessionContext().getCurrentCollection(); if (collection != null) { appLayerFactory.getExtensions().forCollection(collection).decorateView(params); } buildInitJavascript(); } protected ConstellioHeaderImpl buildHeader() { return new ConstellioHeaderImpl(); } protected Component buildMainMenu() { ConstellioMenuImpl mainMenu = new ConstellioMenuImpl() { @Override protected List<ConstellioMenuButton> buildMainMenuButtons() { return MainLayoutImpl.this.buildMainMenuButtons(); } }; mainMenu.setHeight("100%"); return mainMenu; } protected List<ConstellioMenuButton> buildMainMenuButtons() { List<ConstellioMenuButton> mainMenuButtons = new ArrayList<>(); for (NavigationItem item : presenter.getNavigationItems()) { mainMenuButtons.add(buildButton(item)); } return mainMenuButtons; } private Component buildMessage() { String messageText = presenter.getMessage(); if (StringUtils.isEmpty(messageText)) { return null; } Label message = new Label(messageText); message.addStyleName("footer-warning"); message.addStyleName(ValoTheme.LABEL_LARGE); message.addStyleName(ValoTheme.LABEL_BOLD); return message; } protected Component buildFooter() { Link poweredByConstellioLink = new Link( $("MainLayout.footerAlt") + " (" + presenter.getCurrentVersion() + ")", new ExternalResource("http://www.constellio.com")); poweredByConstellioLink.setTargetName("_blank"); poweredByConstellioLink.addStyleName(ValoTheme.LINK_LARGE); poweredByConstellioLink.addStyleName("footer"); return poweredByConstellioLink; } protected Component buildLicense() { boolean showFooter = !"true".equals(System.getProperty("no_footer_message")); Label licenseLabel = new Label($("MainLayout.footerLicense")); licenseLabel.addStyleName(ValoTheme.LABEL_TINY); licenseLabel.setContentMode(ContentMode.HTML); licenseLabel.setVisible(showFooter); return licenseLabel; } protected void buildInitJavascript() { JavaScript.getCurrent().addFunction("constellio_easter_egg_code", new JavaScriptFunction() { @Override public void call(JsonArray arguments) { ((ConstellioMenuImpl) mainMenu).getUserSettingsItem() .setIcon(new ThemeResource("images/profiles/egg.jpg")); } }); } private ConstellioMenuButton buildButton(final NavigationItem item) { ComponentState state = presenter.getStateFor(item); Button button = new Button($("MainLayout." + item.getCode())); button.setVisible(state.isVisible()); button.setEnabled(state.isEnabled()); button.addStyleName(item.getCode()); if (item.getFontAwesome() != null) { button.setIcon(item.getFontAwesome()); } button.addClickListener(new ClickListener() { @Override public void buttonClick(ClickEvent event) { item.activate(navigate()); } }); return new ConstellioMenuButton(item.getViewGroup(), button); } @Override public CoreViews navigateTo() { return ConstellioUI.getCurrent().navigateTo(); } @Override public Navigation navigate() { return ConstellioUI.getCurrent().navigate(); } @Override public ConstellioHeaderImpl getHeader() { return header; } }