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// 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.
var site;
var key1;
var key2;
function setRadio(name, value) {
var radios = document.querySelectorAll('input[name="' + name + '"]');
for (var i = 0; i < radios.length; i++) {
radios[i].checked = (radios[i].value == value);
radios[i].disabled = !getEnabled();
}
}
function update() {
document.body.className = getEnabled() ? '' : 'disabled';
if (getEnabled()) {
$('title').innerText = chrome.i18n.getMessage('highcontrast_enabled');
$('toggle').innerHTML =
'<b>' + chrome.i18n.getMessage('highcontrast_disable') + '</b><br>' +
'<span class="kb">(' + key1 + ')</span>';
$('subcontrols').style.display = 'block';
} else {
$('title').innerText = chrome.i18n.getMessage('highcontrast_disabled');
$('toggle').innerHTML =
'<b>' + chrome.i18n.getMessage('highcontrast_enable') + '</b><br>' +
'<span class="kb">(' + key1 + ')</span>';
$('subcontrols').style.display = 'none';
}
setRadio('keyaction', getKeyAction());
if (site) {
setRadio('scheme', getSiteScheme(site));
$('make_default').disabled = (getSiteScheme(site) == getDefaultScheme());
} else {
setRadio('scheme', getDefaultScheme());
}
if (getEnabled()) {
document.documentElement.setAttribute(
'hc',
site ? 'a' + getSiteScheme(site) : 'a' + getDefaultScheme());
} else {
document.documentElement.setAttribute('hc', 'a0');
}
}
function onToggle() {
setEnabled(!getEnabled());
update();
}
function onForget() {
resetSiteSchemes();
update();
}
function onRadioChange(name, value) {
switch (name) {
case 'keyaction':
setKeyAction(value);
break;
case 'apply':
setApply(value);
break;
case 'scheme':
if (site) {
setSiteScheme(site, value);
} else {
setDefaultScheme(value);
}
break;
}
update();
}
function onMakeDefault() {
setDefaultScheme(getSiteScheme(site));
update();
}
function addRadioListeners(name) {
var radios = document.querySelectorAll('input[name="' + name + '"]');
for (var i = 0; i < radios.length; i++) {
radios[i].addEventListener('change', function(evt) {
onRadioChange(evt.target.name, evt.target.value);
}, false);
radios[i].addEventListener('click', function(evt) {
onRadioChange(evt.target.name, evt.target.value);
}, false);
}
}
function init() {
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);
}
addRadioListeners('keyaction');
addRadioListeners('apply');
addRadioListeners('scheme');
$('toggle').addEventListener('click', onToggle, false);
$('make_default').addEventListener('click', onMakeDefault, false);
$('forget').addEventListener('click', onForget, false);
if (navigator.appVersion.indexOf('Mac') != -1) {
key1 = '⌘+Shift+F11';
key2 = '⌘+Shift+F12';
} else {
key1 = 'Shift+F11';
key2 = 'Shift+F12';
}
chrome.windows.getLastFocused({'populate': true}, function(window) {
for (var i = 0; i < window.tabs.length; i++) {
var tab = window.tabs[i];
if (tab.active) {
if (isDisallowedUrl(tab.url)) {
$('scheme_title').innerText =
chrome.i18n.getMessage('highcontrast_default');
$('make_default').style.display = 'none';
} else {
site = siteFromUrl(tab.url);
$('scheme_title').innerHTML =
chrome.i18n.getMessage('highcontrast_',
'<b>' + site + '</b>:<br>' +
'<span class="kb">(' + key2 + ')</span>');
$('make_default').style.display = 'block';
}
update();
return;
}
}
site = 'unknown site';
update();
});
}
window.addEventListener('load', init, false);
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