Initial checkin of accessibility extensions.

ui/accessibility/extensions/caretbrowsing/options.js

+/* Copyright (c) 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. */
+
+function setRadio(name, defaultValue) {
+  chrome.storage.sync.get(name, function(result) {
+    var value = result[name];
+    if (value === undefined) {
+      value = defaultValue;
+      var obj = {};
+      obj[name] = value;
+      chrome.storage.sync.set(obj);
+    }
+    var controls = document.querySelectorAll(
+        'input[type="radio"][name="' + name + '"]');
+    for (var i = 0; i < controls.length; i++) {
+      var c = controls[i];
+      if (c.value == value) {
+        c.checked = true;
+      }
+      c.addEventListener('change', function(evt) {
+        if (evt.target.checked) {
+          var obj = {};
+          obj[evt.target.name] = evt.target.value;
+          chrome.storage.sync.set(obj);
+        }
+      }, false);
+    }
+  });
+}
+
+function load() {
+  var isMac = (navigator.appVersion.indexOf("Mac") != -1);
+  if (isMac) {
+    document.body.classList.add('mac');
+  } else {
+    document.body.classList.add('nonmac');
+  }
+
+  var isCros = (navigator.appVersion.indexOf("CrOS") != -1);
+  if (isCros) {
+    document.body.classList.add('cros');
+  } else {
+    document.body.classList.add('noncros');
+  }
+
+  setRadio('onenable', 'anim');
+  setRadio('onjump', 'flash');
+
+  var heading = document.querySelector('h1');
+  var sel = window.getSelection();
+  sel.setBaseAndExtent(heading, 0, heading, 0);
+
+  document.title = chrome.i18n.getMessage('caretBrowsingOptions');
+  var i18nElements = document.querySelectorAll('*[i18n-content]');
+  for (var i = 0; i < i18nElements.length; i++) {
+    var elem = i18nElements[i];
+    var msg = elem.getAttribute('i18n-content');
+    elem.innerHTML = chrome.i18n.getMessage(msg);
+  }
+}
+
+window.addEventListener('load', load, false);