teichmann@5861: /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde
teichmann@5861:  * Software engineering by Intevation GmbH
teichmann@5861:  *
teichmann@5993:  * This file is Free Software under the GNU AGPL (>=v3)
teichmann@5861:  * and comes with ABSOLUTELY NO WARRANTY! Check out the
teichmann@5993:  * documentation coming with Dive4Elements River for details.
teichmann@5861:  */
teichmann@5861: 
teichmann@5835: package org.dive4elements.river.client.client.ui;
ingo@27: 
ingo@27: import com.google.gwt.core.client.GWT;
bjoern@4602: import com.google.gwt.i18n.client.LocaleInfo;
bjoern@4602: import com.google.gwt.user.client.Window;
bjoern@4602: import com.google.gwt.user.client.rpc.AsyncCallback;
ingo@27: import com.smartgwt.client.types.Alignment;
bjoern@4602: import com.smartgwt.client.types.VerticalAlignment;
bjoern@4602: import com.smartgwt.client.util.BooleanCallback;
bjoern@4602: import com.smartgwt.client.util.SC;
bjoern@4602: import com.smartgwt.client.widgets.Button;
ingo@27: import com.smartgwt.client.widgets.Img;
ingo@27: import com.smartgwt.client.widgets.Label;
bjoern@4602: import com.smartgwt.client.widgets.events.ClickEvent;
bjoern@4602: import com.smartgwt.client.widgets.events.ClickHandler;
christian@6546: import com.smartgwt.client.widgets.form.DynamicForm;
christian@6437: import com.smartgwt.client.widgets.layout.HLayout;
ingo@27: 
christian@6437: import org.dive4elements.river.client.client.Config;
teichmann@5835: import org.dive4elements.river.client.client.FLYS;
teichmann@5835: import org.dive4elements.river.client.client.FLYSConstants;
teichmann@5835: import org.dive4elements.river.client.client.services.UserService;
teichmann@5835: import org.dive4elements.river.client.client.services.UserServiceAsync;
teichmann@5835: import org.dive4elements.river.client.shared.model.User;
ingo@27: 
ingo@27: 
ingo@27: /**
christian@6437:  * Header of the FLYS webpage/app.
christian@6437:  *
ingo@27:  * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
ingo@27:  */
ingo@27: public class FLYSHeader extends HLayout {
ingo@27: 
ingo@27:     /** The interface that provides the message resources. */
christian@6437:     private final FLYSConstants MESSAGES = GWT.create(FLYSConstants.class);
ingo@27: 
ingo@27:     /** The height used for this header.*/
bjoern@4602:     public static final int HEIGHT = 56;
ingo@27: 
ingo@27:     /** The height used for the images.*/
ingo@27:     public static final int IMG_HEIGHT = 50;
ingo@27: 
bjoern@4602:     /** The user that is currently logged in. */
bjoern@4602:     private User currentUser;
ingo@27: 
bjoern@4602:     /** The label that displays the current logged in user. */
christian@6437:     private final Label userText;
bjoern@4602: 
bjoern@4602:     /** The button to log the current user out.*/
christian@6437:     private final Button logout;
bjoern@4602: 
bjoern@4602:     /** The button to open the project list.*/
christian@6437:     private final Button projectList;
bjoern@4602: 
bjoern@4602:     /** The button to switch between the english and german version.*/
christian@6437:     private final Button language;
bjoern@4602: 
bjoern@4602:     /** The button to open an info panel.*/
christian@6437:     private final Button info;
bjoern@4602: 
christian@6437:     private final UserServiceAsync userService =
bjoern@4602:         GWT.create(UserService.class);
bjoern@4602: 
bjoern@4602:     /** An instance to FLYS.*/
christian@6437:     private final FLYS flys;
bjoern@4602: 
bjoern@4602: 
bjoern@4602:     public FLYSHeader(FLYS flys) {
bjoern@4602:         this.flys     = flys;
bjoern@4602: 
bjoern@4602:         String guest = MESSAGES.user() + " " + MESSAGES.guest();
bjoern@4602: 
bjoern@4602:         userText    = new Label(guest);
bjoern@4602:         projectList = new Button(MESSAGES.manage_projects());
bjoern@4602:         logout      = new Button(MESSAGES.logout());
bjoern@4602:         language    = new Button(MESSAGES.switch_language());
bjoern@4602:         info        = new Button(MESSAGES.info());
bjoern@4602: 
bjoern@4602:         projectList.addClickHandler(new ClickHandler() {
bjoern@4602:             @Override
bjoern@4602:             public void onClick(ClickEvent event) {
bjoern@4602:                 GWT.log("Clicked 'Open ProjectList' button.");
bjoern@4602:                 getFlys().openProjectList();
bjoern@4602:             }
bjoern@4602:         });
bjoern@4602: 
bjoern@4602:         logout.addClickHandler(new ClickHandler() {
bjoern@4602:             @Override
bjoern@4602:             public void onClick(ClickEvent event) {
bjoern@4602:                 GWT.log("Clicked 'logout' button.");
bjoern@4602:                 userService.logoutCurrentUser(new AsyncCallback<Void>() {
christian@6437:                     @Override
bjoern@4602:                     public void onFailure(Throwable caught) {
bjoern@4602:                     }
bjoern@4602: 
christian@6437:                     @Override
bjoern@4602:                     public void onSuccess(Void result) {
bjoern@4602:                         /* Just reload the page. GGInAFilter is goint to redirect
bjoern@4602:                          * to the correct login page */
bjoern@4602:                         Window.Location.reload();
bjoern@4602:                     }
bjoern@4602:                 });
bjoern@4602: 
bjoern@4602:             }
bjoern@4602:         });
bjoern@4602: 
bjoern@4602:         language.addClickHandler(new ClickHandler() {
bjoern@4602:             @Override
bjoern@4602:             public void onClick(ClickEvent event) {
bjoern@4602:                 LocaleInfo info            = LocaleInfo.getCurrentLocale();
bjoern@4602:                 final String currentLocale = info.getLocaleName();
bjoern@4602:                 final String newLocale     = currentLocale.equals("de")
bjoern@4602:                     ? "en"
bjoern@4602:                     : "de";
bjoern@4602: 
bjoern@4602:                 SC.confirm(MESSAGES.warning(), MESSAGES.warning_language(),
bjoern@4602:                     new BooleanCallback() {
bjoern@4602:                         @Override
bjoern@4602:                         public void execute(Boolean value) {
bjoern@4602:                             if (value) {
bjoern@4602:                                 switchLanguage(currentLocale, newLocale);
bjoern@4602:                             }
bjoern@4602:                         }
bjoern@4602:                     });
bjoern@4602:             }
bjoern@4602:         });
bjoern@4602: 
bjoern@4602:         info.addClickHandler(new ClickHandler() {
bjoern@4602:             @Override
bjoern@4602:             public void onClick(ClickEvent event) {
bjoern@4602:                 GWT.log("Clicked 'info' button.");
christian@6437:                 String wikiLink = Config.getInstance().getWikiUrl() + "/Info";
christian@6546: 
christian@6546:                 // Create a dynamic form which contains the SAML session
christian@6546:                 // for the user which is currently logged in
christian@6546:                 DynamicForm df = WikiLinks.dynamicForm(getFlys(), wikiLink);
christian@6546:                 info.addChild(df);    // add the form somewhere
christian@6546:                 df.submitForm();      // submit the form to go to the wiki
christian@6546:                 info.removeChild(df); // and remove the dynamic form
bjoern@4602:             }
bjoern@4602:         });
ingo@27:         init();
ingo@27:     }
ingo@27: 
ingo@27:     public void init() {
bjoern@4602:         setStyleName("header");
ingo@27:         setWidth100();
ingo@27:         setHeight(HEIGHT);
bjoern@4602:         setBackgroundColor("#a9c9e6");
ingo@27:         setLayoutLeftMargin(5);
ingo@27:         setLayoutRightMargin(5);
ingo@27: 
raimund@1399:         String baseUrl = GWT.getHostPageBaseURL();
ingo@27: 
ingo@27:         Img flys = new Img(
raimund@1399:             baseUrl + MESSAGES.flysLogo(),
raimund@1399:             50,
ingo@27:             IMG_HEIGHT);
ingo@27: 
bjoern@4602:         Img bfg = new Img(
bjoern@4602:             baseUrl + MESSAGES.bfgLogoSmall(),
bjoern@4602:             150,
bjoern@4602:             IMG_HEIGHT);
ingo@27: 
ingo@27:         Label fullname = new Label(MESSAGES.fullname());
ingo@27:         fullname.setHeight(HEIGHT - IMG_HEIGHT);
bjoern@4602:         fullname.setStyleName("fontBlackMid");
ingo@27: 
bjoern@4602:         HLayout left = new HLayout();
bjoern@4602:         left.setDefaultLayoutAlign(VerticalAlignment.CENTER);
bjoern@4602:         left.setMembersMargin(3);
ingo@27:         left.addMember(flys);
ingo@27:         left.addMember(fullname);
ingo@27: 
ingo@27:         HLayout right = new HLayout();
ingo@27:         right.setAlign(Alignment.RIGHT);
bjoern@4602:         right.setDefaultLayoutAlign(Alignment.RIGHT);
bjoern@4602:         right.setDefaultLayoutAlign(VerticalAlignment.CENTER);
bjoern@4602:         right.setMembersMargin(3);
bjoern@4602:         right.setLayoutRightMargin(5);
bjoern@4602: 
bjoern@4602:         projectList.setStyleName("manageProjects");
bjoern@4602:         userText.setStyleName("fontBlackSmall");
bjoern@4602:         logout.setStyleName("fontLightSmall");
bjoern@4602:         language.setStyleName("fontLightSmall");
bjoern@4602:         info.setStyleName("fontLightSmall");
bjoern@4602: 
bjoern@4602:         userText.setAlign(Alignment.RIGHT);
bjoern@4602:         userText.setWidth(200);
bjoern@4602:         logout.setWidth(70);
bjoern@4602:         info.setWidth(40);
bjoern@4602:         language.setWidth(70);
bjoern@4602: 
bjoern@4602:         left.addMember(projectList);
bjoern@4602:         if (this.flys.isProjectListVisible()) {
bjoern@4602:             hideProjectButton();
bjoern@4602:         }
bjoern@4602:         else {
bjoern@4602:             showProjectButton();
bjoern@4602:         }
bjoern@4602: 
bjoern@4602:         right.addMember(userText);
bjoern@4602:         right.addMember(logout);
bjoern@4602:         right.addMember(language);
felix@6558:         // TEMPORARILY DEACTIVATED: The info button to link in wiki.
felix@6558:         // TODO (issue702)
felix@6558:         //right.addMember(info);
ingo@27:         right.addMember(bfg);
ingo@27: 
ingo@27:         addMember(left);
ingo@27:         addMember(right);
ingo@27:     }
ingo@27: 
bjoern@4602:     /**
bjoern@4602:      * Returns the FLYS instance stored in this class.
bjoern@4602:      *
bjoern@4602:      * @return the flys instance.
bjoern@4602:      */
bjoern@4602:     private FLYS getFlys() {
bjoern@4602:         return flys;
bjoern@4602:     }
ingo@27: 
ingo@27:     /**
bjoern@4602:      * This method triggers the language switch between the <i>currentLocale</i>
bjoern@4602:      * and the <i>newLocale</i>. The switch is done by replacing a "locale="
bjoern@4602:      * parameter in the url of the application. We could use the GWT UrlBuilder
bjoern@4602:      * class to create a new URL, but - in my eyes - this class is a bit
bjoern@4602:      * inconsistens in its implementation.
ingo@27:      *
bjoern@4602:      * @param currentLocale The current locale string (e.g. "en").
bjoern@4602:      * @param newLocale The new locale string (e.g. "de").
ingo@27:      */
bjoern@4602:     private void switchLanguage(String currentLocale, String newLocale) {
bjoern@4602:         String newLocation = Window.Location.getHref();
ingo@27: 
bjoern@4602:         if (newLocation.endsWith("/")) {
bjoern@4602:             newLocation = newLocation.substring(0, newLocation.length()-1);
bjoern@4602:         }
ingo@27: 
bjoern@4602:         String replace     = null;
bjoern@4602:         String replaceWith = null;
bjoern@4602: 
bjoern@4602:         if (newLocation.indexOf("&locale=") >= 0) {
bjoern@4602:             replace = currentLocale.equals("de")
bjoern@4602:                 ? "&locale=de"
bjoern@4602:                 : "&locale=en";
bjoern@4602: 
bjoern@4602:             replaceWith = "&locale=" + newLocale;
bjoern@4602:         }
bjoern@4602:         else if (newLocation.indexOf("?locale=") >= 0) {
bjoern@4602:             replace = currentLocale.equals("de")
bjoern@4602:                 ? "?locale=de"
bjoern@4602:                 : "?locale=en";
bjoern@4602: 
bjoern@4602:             replaceWith = "?locale=" + newLocale;
bjoern@4602:         }
bjoern@4602:         else {
bjoern@4602:             newLocation += newLocation.indexOf("?") >= 0
bjoern@4602:                 ? "&locale=" + newLocale
bjoern@4602:                 : "?locale=" + newLocale;
bjoern@4602:         }
bjoern@4602: 
bjoern@4602:         if (replace != null && replaceWith != null) {
bjoern@4602:             newLocation = newLocation.replace(replace, replaceWith);
bjoern@4602:         }
bjoern@4602: 
bjoern@4602:         Window.open(newLocation, "_self", "");
bjoern@4602:     }
bjoern@4602: 
bjoern@4602:     /**
bjoern@4602:      * Update the text field that shows the current user. If no user is
bjoern@4602:      * currently logged in, the text will display {@link FLYSConstants.guest()}.
bjoern@4602:      */
bjoern@4602:     private void updateCurrentUser() {
bjoern@4602:         String name = currentUser != null
bjoern@4602:             ? currentUser.getName()
bjoern@4602:             : MESSAGES.guest();
bjoern@4602: 
bjoern@4602:         GWT.log("Update the current user: " + name);
bjoern@4602: 
bjoern@4602:         String username = MESSAGES.user() + " " + name;
bjoern@4602:         userText.setContents(username);
bjoern@4602:     }
bjoern@4602: 
bjoern@4602:     /**
bjoern@4602:      * Set the current {@link User} and call {@link updateCurrentUser()}
bjoern@4602:      * afterwards.
bjoern@4602:      *
bjoern@4602:      * @param user the new user.
bjoern@4602:      */
bjoern@4602:     public void setCurrentUser(User currentUser) {
bjoern@4602:         this.currentUser = currentUser;
bjoern@4602: 
bjoern@4602:         updateCurrentUser();
bjoern@4602:     }
bjoern@4602: 
bjoern@4602:     public void hideProjectButton() {
bjoern@4602:         this.projectList.hide();
bjoern@4602:     }
bjoern@4602: 
bjoern@4602:     public void showProjectButton() {
bjoern@4602:         this.projectList.show();
ingo@27:     }
ingo@27: }
ingo@27: // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :