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// Copyright 2015 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.
/**
* @fileoverview
* 'settings-a11y-page' is the small section of advanced settings with
* a link to the web store accessibility page on most platforms, and
* a subpage with lots of other settings on Chrome OS.
*/
Polymer({
is: 'settings-a11y-page',
behaviors: [WebUIListenerBehavior],
properties: {
/**
* The current active route.
*/
currentRoute: {
type: Object,
notify: true,
},
/**
* Preferences state.
*/
prefs: {
type: Object,
notify: true,
},
/**
* Whether to show accessibility labels settings.
*/
showAccessibilityLabelsSetting_: {
type: Boolean,
value: false,
},
/** @private {!Map<string, string>} */
focusConfig_: {
type: Object,
value: function() {
const map = new Map();
if (settings.routes.CAPTIONS) {
map.set(settings.routes.CAPTIONS.path, '#captions');
}
// <if expr="chromeos">
if (settings.routes.MANAGE_ACCESSIBILITY) {
map.set(
settings.routes.MANAGE_ACCESSIBILITY.path, '#subpage-trigger');
}
// </if>
return map;
},
},
/**
* Whether to show the link to caption settings.
* @private {boolean}
*/
showCaptionSettings_: {
type: Boolean,
value: function() {
return loadTimeData.getBoolean('enableCaptionSettings');
},
},
/**
* Whether the caption settings link opens externally.
* @private {boolean}
*/
captionSettingsOpensExternally_: {
type: Boolean,
value: function() {
let opensExternally = false;
// <if expr="is_macosx">
opensExternally = true;
// </if>
// <if expr="is_win">
opensExternally = loadTimeData.getBoolean('isWindows10OrNewer');
// </if>
return opensExternally;
},
},
// <if expr="chromeos">
/**
* Whether to show experimental accessibility features.
* Only used in Chrome OS.
* @private {boolean}
*/
showExperimentalFeatures_: {
type: Boolean,
value: function() {
return loadTimeData.getBoolean('showExperimentalA11yFeatures');
},
},
// </if>
},
/** @override */
ready: function() {
this.addWebUIListener(
'screen-reader-state-changed',
this.onScreenReaderStateChanged_.bind(this));
chrome.send('getScreenReaderState');
},
/**
* @private
* @param {boolean} hasScreenReader Whether a screen reader is enabled.
*/
onScreenReaderStateChanged_: function(hasScreenReader) {
// TODO(katie): Remove showExperimentalA11yLabels flag before launch.
this.showAccessibilityLabelsSetting_ = hasScreenReader &&
loadTimeData.getBoolean('showExperimentalA11yLabels');
},
/** @private */
onToggleAccessibilityImageLabels_: function() {
const a11yImageLabelsOn = this.$.a11yImageLabels.checked;
if (a11yImageLabelsOn) {
chrome.send('confirmA11yImageLabels');
}
chrome.metricsPrivate.recordBoolean(
'Accessibility.ImageLabels.FromSettings.ToggleSetting',
a11yImageLabelsOn);
},
// <if expr="chromeos">
/** @private */
onManageAccessibilityFeaturesTap_: function() {
settings.navigateTo(settings.routes.MANAGE_ACCESSIBILITY);
},
// </if>
/** private */
onMoreFeaturesLinkClick_: function() {
window.open(
'https://chrome.google.com/webstore/category/collection/accessibility');
},
/** @private */
onCaptionsClick_: function() {
// Open the system captions dialog for Mac.
// <if expr="is_macosx">
settings.CaptionsBrowserProxyImpl.getInstance().openSystemCaptionsDialog();
// </if>
// Open the system captions dialog for Windows 10+ or navigate to the
// caption settings page for older versions of Windows
// <if expr="is_win">
if (loadTimeData.getBoolean('isWindows10OrNewer')) {
settings.CaptionsBrowserProxyImpl.getInstance()
.openSystemCaptionsDialog();
} else {
settings.navigateTo(settings.routes.CAPTIONS);
}
// </if>
// Navigate to the caption settings page for ChromeOS and Linux as they
// do not have system caption settings.
// <if expr="chromeos or is_linux">
settings.navigateTo(settings.routes.CAPTIONS);
// </if>
},
});
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