com.risevision.ui.client.common.widgets.LastModifiedWidget.java Source code

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Here is the source code for com.risevision.ui.client.common.widgets.LastModifiedWidget.java

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// Copyright  2010 - May 2014 Rise Vision Incorporated.
// Use of this software is governed by the GPLv3 license
// (reproduced in the LICENSE file).

package com.risevision.ui.client.common.widgets;

import java.util.Date;

import com.google.gwt.i18n.client.DateTimeFormat;
import com.google.gwt.user.client.ui.Label;
import com.risevision.common.client.utils.RiseUtils;

public class LastModifiedWidget extends Label {
    private static LastModifiedWidget instance;
    //   private UserServiceAsync userService = (UserServiceAsync) GWT.create(UserService.class); 
    //   private RpcGetUserCallbackHandler callbackHandler = new RpcGetUserCallbackHandler();

    //   private Date changeDate;

    public static LastModifiedWidget getInstance() {
        try {
            if (instance == null)
                instance = new LastModifiedWidget();
        } catch (Exception e) {
            e.printStackTrace();
        }
        return instance;
    }

    public LastModifiedWidget() {
        setStyleName("rdn-LastModified");
    }

    public void Initialize(String changedBy, Date changeDate) {
        //      this.changeDate = changeDate;

        if (changeDate != null) {
            setText("Saved: " + getLastModified(changedBy, changeDate));
        }

        //      if (!RiseUtils.strIsNullOrEmpty(changedBy)) {
        //         userService.getUser(changedBy, callbackHandler);   
        //      }
    }

    public void Hide() {
        setText("");
    }

    public void Clear() {
        setText("");
    }

    public static String getLastModified(Date changeDate) {
        return getDateString(changeDate);
    }

    public static String getLastModified(String changedBy, Date changeDate) {
        if (changedBy == null) {
            return getLastModified(changeDate);
        } else {
            String username = changedBy;

            if (changedBy.indexOf("@") != -1) {
                username = changedBy.substring(0, changedBy.indexOf("@"));
            }

            return getDateString(changeDate) + " by " + username;
        }
    }

    @SuppressWarnings("deprecation")
    private static String getDateString(Date oldDate) {
        if (oldDate == null) {
            return "";
        }

        String difference = "";
        Date newDate = new Date();

        if (newDate.getYear() > oldDate.getYear() || newDate.getMonth() > oldDate.getMonth()) {
            difference = DateTimeFormat.getFormat(RiseUtils.SHORT_DATE_FORMAT).format(oldDate);
        } else if (newDate.getDate() > oldDate.getDate()) {
            difference = DateTimeFormat.getFormat("MMM d").format(oldDate);
        } else {
            difference = RiseUtils.timeToString(oldDate);
        }

        return difference;
    }

    //   class RpcGetUserCallbackHandler implements AsyncCallback<UserInfo> {
    //
    //      public void onFailure(Throwable caught) {
    //      }
    //
    //      public void onSuccess(UserInfo user) {
    //         if (user != null) {
    //            setText("Saved " + RiseUtils.dateToString(changedDate) + " by " + user.getFirstName() + " " + user.getLastName());
    //         }
    //      }
    //   }

}