chrome/browser/resources/pdf/elements/viewer-password-screen.js

// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

import 'chrome://resources/cr_elements/cr_button/cr_button.m.js';
import 'chrome://resources/cr_elements/cr_dialog/cr_dialog.m.js';
import 'chrome://resources/cr_elements/cr_input/cr_input.m.js';
import 'chrome://resources/cr_elements/shared_style_css.m.js';
import 'chrome://resources/cr_elements/shared_vars_css.m.js';

import {html, Polymer} from 'chrome://resources/polymer/v3_0/polymer/polymer_bundled.min.js';

Polymer({
  is: 'viewer-password-screen',

  _template: html`{__html_template__}`,

  properties: {
    invalid: Boolean,

    strings: Object,
  },

  get active() {
    return this.$.dialog.open;
  },

  show() {
    this.$.dialog.showModal();
  },

  close() {
    if (this.active) {
      this.$.dialog.close();
    }
  },

  deny() {
    const password = /** @type {!CrInputElement} */ (this.$.password);
    password.disabled = false;
    this.$.submit.disabled = false;
    this.invalid = true;
    password.select();
  },

  submit() {
    const password = /** @type {!CrInputElement} */ (this.$.password);
    if (password.value.length === 0) {
      return;
    }
    password.disabled = true;
    this.$.submit.disabled = true;
    this.fire('password-submitted', {password: password.value});
  },

  /**
   * Returns |message| if input is invalid, otherwise empty string.
   * This avoids setting the error message (which announces to screen readers)
   * when there is no error.
   * @param {string} message
   * @return {string}
   */
  getErrorMessage_(message) {
    return this.invalid ? message : '';
  }
});