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// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
const INITIALIZED_KEY: string = 'cvox_initialized';
// Handles interacting with the Lacros browser via extension APIs
// for ChromeVox in Ash.
async function main() {
// Inject script into all gdocs pages if not already initialized.
// For any new tabs that are opened after the ChromeVox helper started
// running, the manifest will handle content script injection, so there's
// no need to listen for any changes: This only has to be done one-time.
// Use session storage to ensure this is done once even if the service
// worker wakes up again later.
const initialized = await chrome.storage.session.get([INITIALIZED_KEY]);
if (initialized && INITIALIZED_KEY in initialized) {
return;
}
const storageUpdate = {[INITIALIZED_KEY]: true};
chrome.storage.session.set(storageUpdate);
// Inject into already-active tabs.
let matches = [];
try {
matches = chrome.runtime.getManifest().content_scripts![0]!.matches!;
} catch (e) {
throw new Error('Unable to find content script matches entry in manifest.');
}
// Build one large regexp.
const docsRe = new RegExp(matches.join('|'));
const windows = await chrome.windows.getAll({'populate': true});
for (const window of windows) {
if (!window.tabs) {
continue;
}
const tabs = window.tabs.filter(tab => docsRe.test(tab.url!));
for (const tab of tabs) {
chrome.scripting
.executeScript({
target: {tabId: tab.id!, allFrames: true},
files: ['chromevox_helper/cvox_gdocs_script.js'],
})
.then(() => {
if (chrome.runtime.lastError) {
console.error('Could not inject into tab ', tab);
}
});
}
}
}
main();
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