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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.
importScripts("common.js");
function injectContentScripts() {
chrome.windows.getAll({'populate': true}, windows => {
for (const w of windows) {
for (const tab of w.tabs) {
var url = tab.url;
if (url.indexOf('chrome') == 0 || url.indexOf('about') == 0) {
continue;
}
chrome.scripting.executeScript({
target: { tabId: tab.id, allFrames: true },
files: [ 'common.js', 'highcontrast.js' ],
injectImmediately: true,
});
}
}
});
}
function toggleEnabled() {
setEnabled(!getEnabled());
}
function toggleSite(url) {
var site = siteFromUrl(url);
var scheme = getSiteScheme(site);
if (scheme > 0) {
scheme = 0;
} else if (getDefaultScheme() > 0) {
scheme = getDefaultScheme();
} else {
scheme = DEFAULT_SCHEME;
}
setSiteScheme(site, scheme);
}
async function init() {
injectContentScripts();
chrome.runtime.onMessage.addListener((message, sender, sendResponse) => {
if (message['toggle_global']) {
toggleEnabled();
}
if (message['toggle_site']) {
toggleSite(sender.tab ? sender.tab.url : 'www.example.com');
}
});
if (navigator.appVersion.indexOf('Mac') != -1) {
chrome.action.setTitle({'title': 'High Contrast (Cmd+Shift+F11)'});
}
}
self.addEventListener('install', init);
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