text: /* 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.
   */
  
  'use strict';
  
  (function (root, factory) {
    if (typeof define === 'function' && define.amd) {
      define('pdfjs-web/password_prompt', ['exports',
        'pdfjs-web/ui_utils', 'pdfjs-web/overlay_manager', 'pdfjs-web/pdfjs'],
        factory);
    } else if (typeof exports !== 'undefined') {
      factory(exports, require('./ui_utils.js'), require('./overlay_manager.js'),
        require('./pdfjs.js'));
    } else {
      factory((root.pdfjsWebPasswordPrompt = {}), root.pdfjsWebUIUtils,
        root.pdfjsWebOverlayManager, root.pdfjsWebPDFJS);
    }
  }(this, function (exports, uiUtils, overlayManager, pdfjsLib) {
  
  var mozL10n = uiUtils.mozL10n;
  var OverlayManager = overlayManager.OverlayManager;
  
  /**
   * @typedef {Object} PasswordPromptOptions
   * @property {string} overlayName - Name of the overlay for the overlay manager.
   * @property {HTMLDivElement} container - Div container for the overlay.
   * @property {HTMLParagraphElement} label - Label containing instructions for
   *                                          entering the password.
   * @property {HTMLInputElement} input - Input field for entering the password.
   * @property {HTMLButtonElement} submitButton - Button for submitting the
   *                                              password.
   * @property {HTMLButtonElement} cancelButton - Button for cancelling password
   *                                              entry.
   */
  
  /**
   * @class
   */
  var PasswordPrompt = (function PasswordPromptClosure() {
    /**
     * @constructs PasswordPrompt
     * @param {PasswordPromptOptions} options
     */
    function PasswordPrompt(options) {
      this.overlayName = options.overlayName;
      this.container = options.container;
      this.label = options.label;
      this.input = options.input;
      this.submitButton = options.submitButton;
      this.cancelButton = options.cancelButton;
  
      this.updateCallback = null;
      this.reason = null;
  
      // Attach the event listeners.
      this.submitButton.addEventListener('click', this.verify.bind(this));
      this.cancelButton.addEventListener('click', this.close.bind(this));
      this.input.addEventListener('keydown', function (e) {
        if (e.keyCode === 13) { // Enter key
          this.verify();
        }
      }.bind(this));
  
      OverlayManager.register(this.overlayName, this.container,
                              this.close.bind(this), true);
    }
  
    PasswordPrompt.prototype = {
      open: function PasswordPrompt_open() {
        OverlayManager.open(this.overlayName).then(function () {
          this.input.type = 'password';
          this.input.focus();
  
          var promptString = mozL10n.get('password_label', null,
            'Enter the password to open this PDF file.');
  
          if (this.reason === pdfjsLib.PasswordResponses.INCORRECT_PASSWORD) {
            promptString = mozL10n.get('password_invalid', null,
              'Invalid password. Please try again.');
          }
  
          this.label.textContent = promptString;
        }.bind(this));
      },
  
      close: function PasswordPrompt_close() {
        OverlayManager.close(this.overlayName).then(function () {
          this.input.value = '';
          this.input.type = '';
        }.bind(this));
      },
  
      verify: function PasswordPrompt_verify() {
        var password = this.input.value;
        if (password && password.length > 0) {
          this.close();
          return this.updateCallback(password);
        }
      },
  
      setUpdateCallback:
          function PasswordPrompt_setUpdateCallback(updateCallback, reason) {
        this.updateCallback = updateCallback;
        this.reason = reason;
      }
    };
  
    return PasswordPrompt;
  })();
  
  exports.PasswordPrompt = PasswordPrompt;
  }));
  