SimpleTaskSystem.Web/Assets/lib/pdfjs-1.0.1149/web/compatibility.js

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/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
/* Copyright 2012 Mozilla Foundation
 *
 * 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.
 */
/* globals VBArray, PDFJS */

'use strict';

// Initializing PDFJS global object here, it case if we need to change/disable
// some PDF.js features, e.g. range requests
if (typeof PDFJS === 'undefined') {
  (typeof window !== 'undefined' ? window : this).PDFJS = {};
}

// Checking if the typed arrays are supported
// Support: iOS<6.0 (subarray), IE<10, Android<4.0
(function checkTypedArrayCompatibility() {
  if (typeof Uint8Array !== 'undefined') {
    // Support: iOS<6.0
    if (typeof Uint8Array.prototype.subarray === 'undefined') {
        Uint8Array.prototype.subarray = function subarray(start, end) {
          return new Uint8Array(this.slice(start, end));
        };
        Float32Array.prototype.subarray = function subarray(start, end) {
          return new Float32Array(this.slice(start, end));
        };
    }

    // Support: Android<4.1
    if (typeof Float64Array === 'undefined') {
      window.Float64Array = Float32Array;
    }
    return;
  }

  function subarray(start, end) {
    return new TypedArray(this.slice(start, end));
  }

  function setArrayOffset(array, offset) {
    if (arguments.length < 2) {
      offset = 0;
    }
    for (var i = 0, n = array.length; i < n; ++i, ++offset) {
      this[offset] = array[i] & 0xFF;
    }
  }