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package in.shop2020.catalog.dashboard.client;
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import com.google.gwt.core.client.GWT;
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import com.google.gwt.event.dom.client.ClickEvent;
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import com.google.gwt.event.dom.client.ClickHandler;
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import com.google.gwt.uibinder.client.UiBinder;
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import com.google.gwt.uibinder.client.UiField;
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import com.google.gwt.uibinder.client.UiHandler;
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import com.google.gwt.user.client.ui.Anchor;
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import com.google.gwt.user.client.ui.Button;
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import com.google.gwt.user.client.ui.Composite;
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import com.google.gwt.user.client.ui.DialogBox;
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import com.google.gwt.user.client.ui.HTML;
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import com.google.gwt.user.client.ui.Widget;
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/**
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 * Contains logo, welcome message, about and sign out link.
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 */
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public class TopPanel extends Composite {
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  interface Binder extends UiBinder<Widget, TopPanel> { }
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  private static final Binder binder = GWT.create(Binder.class);
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  @UiField Anchor signOutLink;
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  @UiField Anchor aboutLink;
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  @UiField HTML greetingLabel;
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  public TopPanel() {
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    initWidget(binder.createAndBindUi(this));
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  }
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  @UiHandler("aboutLink")
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  void onAboutClicked(ClickEvent event) {
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    final DialogBox dlg = new DialogBox();
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    Button ok = new Button("Close");
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    ok.addClickHandler(new ClickHandler() {
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        @Override
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        public void onClick(ClickEvent event) {
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            dlg.hide();
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        }
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    });
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    dlg.setText("Catalog Dashboard.\nYou can edit the item details here.");
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    dlg.setWidget(ok);
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    dlg.setAutoHideEnabled(true);
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    dlg.setGlassEnabled(true);
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    dlg.setPopupPosition(500, 250);
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    dlg.show();
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    dlg.center();
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  }
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  /**
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   * Called from CatalogDashboard.java after login authentication is successful.
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   * @param greeting
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   */
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  public void changeGreeting(String greeting){
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	  greetingLabel.setText("Welcome "+ greeting);
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  }
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  /**
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   * Click listener of sign out link is added in CatalogDashboard.initMainDB(String)
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   * @return
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   */
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  public Anchor getSignOutLink(){
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	  return signOutLink;
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  }
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}