ingo@1: package de.intevation.flys.client.client.ui;
ingo@1: 
ingo@1: import com.google.gwt.core.client.GWT;
ingo@210: import com.google.gwt.i18n.client.LocaleInfo;
ingo@210: import com.google.gwt.user.client.Window;
bjoern@4215: import com.google.gwt.user.client.rpc.AsyncCallback;
ingo@28: import com.smartgwt.client.types.Alignment;
ingo@212: import com.smartgwt.client.util.BooleanCallback;
ingo@212: import com.smartgwt.client.util.SC;
ingo@532: import com.smartgwt.client.widgets.Button;
ingo@1: import com.smartgwt.client.widgets.Label;
ingo@6: import com.smartgwt.client.widgets.events.ClickEvent;
ingo@6: import com.smartgwt.client.widgets.events.ClickHandler;
ingo@1: import com.smartgwt.client.widgets.layout.HLayout;
ingo@1: 
ingo@6: import de.intevation.flys.client.client.FLYS;
ingo@211: import de.intevation.flys.client.client.FLYSConstants;
bjoern@4215: import de.intevation.flys.client.client.services.UserService;
bjoern@4215: import de.intevation.flys.client.client.services.UserServiceAsync;
ingo@25: import de.intevation.flys.client.shared.model.User;
ingo@1: 
ingo@1: 
ingo@1: /**
ingo@1:  * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
ingo@1:  */
ingo@1: public class MainMenu extends HLayout {
ingo@1: 
ingo@1:     /** The interface that provides i18n messages. */
christian@2983:     private final FLYSConstants messages = GWT.create(FLYSConstants.class);
ingo@1: 
ingo@6:     /** An instance to FLYS.*/
ingo@6:     protected FLYS flys;
ingo@6: 
ingo@2:     /** The user that is currently logged in. */
ingo@2:     protected User currentUser;
ingo@2: 
ingo@2:     /** The label that displays the current logged in user. */
ingo@2:     protected Label userText;
ingo@2: 
ingo@28:     /** The button to log the current user out.*/
ingo@532:     protected Button logout;
ingo@2: 
ingo@6:     /** The button to add new projects.*/
ingo@532:     protected Button newProject;
ingo@28: 
ingo@28:     /** The button to open the project list.*/
ingo@532:     protected Button projectList;
ingo@28: 
ingo@28:     /** The button to switch between the english and german version.*/
ingo@532:     protected Button language;
ingo@28: 
ingo@28:     /** The button to open an info panel.*/
ingo@532:     protected Button info;
ingo@6: 
bjoern@4215:     protected UserServiceAsync userService =
bjoern@4215:         GWT.create(UserService.class);
bjoern@4215: 
ingo@1:     /**
ingo@1:      * The default constructor for creating a new MainMenu.
ingo@1:      */
ingo@6:     public MainMenu(FLYS flys) {
ingo@6:         this.flys     = flys;
ingo@6: 
ingo@102:         String guest = messages.user() + " " + messages.guest();
ingo@102: 
ingo@102:         userText    = new Label(guest);
ingo@532:         newProject  = new Button(messages.new_project());
ingo@532:         projectList = new Button(messages.manage_projects());
ingo@532:         logout      = new Button(messages.logout());
ingo@532:         language    = new Button(messages.switch_language());
ingo@532:         info        = new Button(messages.info());
ingo@6: 
ingo@28:         newProject.addClickHandler(new ClickHandler() {
christian@2983:             @Override
ingo@6:             public void onClick(ClickEvent event) {
ingo@6:                 GWT.log("Clicked 'New Project' button.");
ingo@6:                 createNewProject();
ingo@6:             }
ingo@6:         });
ingo@2: 
ingo@28:         projectList.addClickHandler(new ClickHandler() {
christian@2983:             @Override
ingo@28:             public void onClick(ClickEvent event) {
ingo@28:                 GWT.log("Clicked 'Open ProjectList' button.");
raimund@88:                 ProjectList list = getFlys().getProjectList();
raimund@94:                 if (list.isVisible())
raimund@88:                     list.hide();
raimund@82:                 else
raimund@88:                     list.show();
ingo@28:             }
ingo@28:         });
ingo@28: 
ingo@28:         logout.addClickHandler(new ClickHandler() {
christian@2983:             @Override
ingo@28:             public void onClick(ClickEvent event) {
ingo@28:                 GWT.log("Clicked 'logout' button.");
bjoern@4215:                 userService.logoutCurrentUser(new AsyncCallback<Void>() {
bjoern@4215:                     public void onFailure(Throwable caught) {
bjoern@4215:                     }
bjoern@4215: 
bjoern@4215:                     public void onSuccess(Void result) {
bjoern@4215:                         Window.Location.replace("/login.jsp");
bjoern@4215:                     }
bjoern@4215:                 });
bjoern@4215: 
ingo@28:             }
ingo@28:         });
ingo@28: 
ingo@28:         language.addClickHandler(new ClickHandler() {
christian@2983:             @Override
ingo@28:             public void onClick(ClickEvent event) {
ingo@212:                 LocaleInfo info            = LocaleInfo.getCurrentLocale();
ingo@212:                 final String currentLocale = info.getLocaleName();
ingo@212:                 final String newLocale     = currentLocale.equals("de")
ingo@212:                     ? "en"
ingo@212:                     : "de";
ingo@210: 
ingo@212:                 SC.confirm(messages.warning(), messages.warning_language(),
ingo@212:                     new BooleanCallback() {
christian@2983:                         @Override
ingo@212:                         public void execute(Boolean value) {
ingo@212:                             if (value) {
ingo@212:                                 switchLanguage(currentLocale, newLocale);
ingo@212:                             }
ingo@212:                         }
ingo@212:                     });
ingo@28:             }
ingo@28:         });
ingo@28: 
ingo@28:         info.addClickHandler(new ClickHandler() {
christian@2983:             @Override
ingo@28:             public void onClick(ClickEvent event) {
ingo@28:                 GWT.log("Clicked 'info' button.");
ingo@28:                 GWT.log("IMPLEMENT the 'open info panel' function.");
ingo@28:             }
ingo@28:         });
ingo@28: 
ingo@1:         init();
ingo@1:     }
ingo@1: 
ingo@1: 
ingo@2:     /**
ingo@2:      * This method is called by the constructor after creating the necessary
ingo@2:      * components. It initializes layout specific stuff like width, height,
ingo@2:      * colors and so on and appends the components.
ingo@2:      */
ingo@1:     protected void init() {
raimund@66:         setStyleName("bgBlueDark");
raimund@66:         setHeight("25px");
ingo@28:         setLayoutMargin(5);
ingo@6: 
raimund@66:         newProject.setStyleName("fontLightSmall");
raimund@66:         projectList.setStyleName("fontLightSmall");
raimund@66:         userText.setStyleName("fontLightSmall");
raimund@66:         newProject.setStyleName("fontLightSmall");
raimund@66:         logout.setStyleName("fontLightSmall");
raimund@66:         language.setStyleName("fontLightSmall");
raimund@66:         info.setStyleName("fontLightSmall");
raimund@66: 
raimund@66:         projectList.setWidth("140px");
raimund@66: 
ingo@28:         HLayout leftPanel = new HLayout();
ingo@28:         leftPanel.setWidth("80%");
ingo@28:         leftPanel.setMembersMargin(5);
ingo@28:         leftPanel.addMember(newProject);
ingo@28:         leftPanel.addMember(projectList);
ingo@6: 
ingo@28:         userText.setAlign(Alignment.RIGHT);
ingo@28:         userText.setWidth(200);
ingo@28:         logout.setWidth(70);
ingo@28:         info.setWidth(40);
ingo@28:         language.setWidth(70);
ingo@28: 
ingo@28:         HLayout rightPanel = new HLayout();
ingo@28:         rightPanel.setAlign(Alignment.RIGHT);
ingo@28:         rightPanel.setMembersMargin(3);
ingo@28:         rightPanel.setLayoutRightMargin(5);
ingo@28:         rightPanel.addMember(userText);
ingo@28:         rightPanel.addMember(logout);
ingo@28:         rightPanel.addMember(language);
ingo@28:         rightPanel.addMember(info);
ingo@28: 
ingo@28:         addMember(leftPanel);
ingo@28:         addMember(rightPanel);
ingo@28:     }
ingo@28: 
ingo@28: 
ingo@28:     /**
ingo@28:      * Returns the FLYS instance stored in this class.
ingo@28:      *
ingo@28:      * @return the flys instance.
ingo@28:      */
ingo@28:     protected FLYS getFlys() {
ingo@28:         return flys;
ingo@2:     }
ingo@2: 
ingo@2: 
ingo@2:     /**
ingo@2:      * Set the current {@link User} and call {@link updateCurrentUser()}
ingo@2:      * afterwards.
ingo@2:      *
ingo@2:      * @param user the new user.
ingo@2:      */
ingo@2:     public void setCurrentUser(User currentUser) {
ingo@2:         this.currentUser = currentUser;
ingo@2: 
ingo@2:         updateCurrentUser();
ingo@2:     }
ingo@2: 
ingo@2: 
ingo@2:     /**
ingo@2:      * Update the text field that shows the current user. If no user is
ingo@211:      * currently logged in, the text will display {@link FLYSConstants.guest()}.
ingo@2:      */
ingo@2:     public void updateCurrentUser() {
ingo@2:         String name = currentUser != null
ingo@25:             ? currentUser.getName()
ingo@2:             : messages.guest();
ingo@2: 
ingo@2:         GWT.log("Update the current user: " + name);
ingo@102: 
ingo@102:         String username = messages.user() + " " + name;
ingo@102:         userText.setContents(username);
ingo@1:     }
ingo@6: 
ingo@6: 
ingo@6:     /**
ingo@6:      * Create a new project by calling FLYS.newProject().
ingo@6:      */
ingo@6:     protected void createNewProject() {
ingo@6:         flys.newProject();
ingo@6:     }
ingo@210: 
ingo@210: 
ingo@210:     /**
ingo@210:      * This method triggers the language switch between the <i>currentLocale</i>
ingo@210:      * and the <i>newLocale</i>. The switch is done by replacing a "locale="
ingo@210:      * parameter in the url of the application. We could use the GWT UrlBuilder
ingo@210:      * class to create a new URL, but - in my eyes - this class is a bit
ingo@210:      * inconsistens in its implementation.
ingo@210:      *
ingo@210:      * @param currentLocale The current locale string (e.g. "en").
ingo@210:      * @param newLocale The new locale string (e.g. "de").
ingo@210:      */
ingo@210:     protected void switchLanguage(String currentLocale, String newLocale) {
ingo@210:         String newLocation = Window.Location.getHref();
ingo@210: 
ingo@212:         if (newLocation.endsWith("/")) {
ingo@212:             newLocation = newLocation.substring(0, newLocation.length()-1);
ingo@212:         }
ingo@212: 
ingo@212:         String replace     = null;
ingo@212:         String replaceWith = null;
ingo@212: 
ingo@210:         if (newLocation.indexOf("&locale=") >= 0) {
ingo@212:             replace = currentLocale.equals("de")
ingo@210:                 ? "&locale=de"
ingo@210:                 : "&locale=en";
ingo@210: 
ingo@212:             replaceWith = "&locale=" + newLocale;
ingo@210:         }
ingo@210:         else if (newLocation.indexOf("?locale=") >= 0) {
ingo@212:             replace = currentLocale.equals("de")
ingo@210:                 ? "?locale=de"
ingo@210:                 : "?locale=en";
ingo@210: 
ingo@212:             replaceWith = "?locale=" + newLocale;
ingo@210:         }
ingo@210:         else {
ingo@210:             newLocation += newLocation.indexOf("?") >= 0
ingo@210:                 ? "&locale=" + newLocale
ingo@210:                 : "?locale=" + newLocale;
ingo@210:         }
ingo@210: 
ingo@212:         if (replace != null && replaceWith != null) {
ingo@212:             newLocation = newLocation.replace(replace, replaceWith);
ingo@212:         }
ingo@212: 
ingo@210:         Window.open(newLocation, "_self", "");
ingo@210:     }
ingo@1: }
ingo@1: // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :