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// Copyright 2011 The Closure Library Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS-IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

/**
 * @fileoverview A wrapper for the HTML5 File ProgressEvent objects.
 *
 */
goog.provide('goog.fs.ProgressEvent');

goog.require('goog.events.Event');



/**
 * A wrapper for the progress events emitted by the File APIs.
 *
 * @param {!ProgressEvent} event The underlying event object.
 * @param {!Object} target The file access object emitting the event.
 * @extends {goog.events.Event}
 * @constructor
 */
goog.fs.ProgressEvent = function(event, target) {
  goog.base(this, event.type, target);

  /**
   * The underlying event object.
   * @type {!ProgressEvent}
   * @private
   */
  this.event_ = event;
};
goog.inherits(goog.fs.ProgressEvent, goog.events.Event);


/**
 * @return {boolean} Whether or not the total size of the of the file being
 *     saved is known.
 */
goog.fs.ProgressEvent.prototype.isLengthComputable = function() {
  return this.event_.lengthComputable;
};


/**
 * @return {number} The number of bytes saved so far.
 */
goog.fs.ProgressEvent.prototype.getLoaded = function() {
  return this.event_.loaded;
};


/**
 * @return {number} The total number of bytes in the file being saved.
 */
goog.fs.ProgressEvent.prototype.getTotal = function() {
  return this.event_.total;
};