Improved password prompt

web/password_prompt.js

@@ -0,0 +1,94 @@
+/* -*- 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 PDFJS, mozL10n */
+
+'use strict';
+
+var PasswordPrompt = {
+  visible: false,
+  updatePassword: null,
+  reason: null,
+  overlayContainer: null,
+  passwordField: null,
+  passwordText: null,
+  passwordSubmit: null,
+  passwordCancel: null,
+
+  initialize: function secondaryToolbarInitialize(options) {
+    this.overlayContainer = options.overlayContainer;
+    this.passwordField = options.passwordField;
+    this.passwordText = options.passwordText;
+    this.passwordSubmit = options.passwordSubmit;
+    this.passwordCancel = options.passwordCancel;
+
+    // Attach the event listeners.
+    this.passwordSubmit.addEventListener('click',
+      this.verifyPassword.bind(this));
+
+    this.passwordCancel.addEventListener('click', this.hide.bind(this));
+
+    this.passwordField.addEventListener('keydown',
+      function (e) {
+        if (e.keyCode === 13) { // Enter key
+          this.verifyPassword();
+        }
+      }.bind(this));
+
+    this.overlayContainer.addEventListener('keydown',
+      function (e) {
+        if (e.keyCode === 27) { // Esc key
+          this.hide();
+        }
+      }.bind(this));
+  },
+
+  show: function passwordPromptShow() {
+    if (this.visible) {
+      return;
+    }
+    this.visible = true;
+    this.overlayContainer.classList.remove('hidden');
+    this.passwordField.focus();
+
+    var promptString = mozL10n.get('password_label', null,
+      'Enter the password to open this PDF file.');
+
+    if (this.reason === PDFJS.PasswordResponses.INCORRECT_PASSWORD) {
+      promptString = mozL10n.get('password_invalid', null,
+        'Invalid password. Please try again.');
+    }
+
+    this.passwordText.textContent = promptString;
+  },
+
+  hide: function passwordPromptClose() {
+    if (!this.visible) {
+      return;
+    }
+    this.visible = false;
+    this.passwordField.value = '';
+    this.overlayContainer.classList.add('hidden');
+  },
+
+  verifyPassword: function passwordPromptVerifyPassword() {
+    var password = this.passwordField.value;
+    if (password && password.length > 0) {
+      this.hide();
+      return this.updatePassword(password);
+    }
+  }
+};