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improve orphan check + cosmetics

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This commit is contained in:
tophf 2022-08-03 23:58:55 +03:00
parent 685bf1fa3e
commit b88a978843
2 changed files with 25 additions and 21 deletions
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2
content/apply.js
View File

@ -259,7 +259,7 @@
}
function orphanCheck() {
if (tryCatch(() => chrome.i18n.getUILanguage())) return;
if (chrome.runtime.id) return;
// In Chrome content script is orphaned on an extension update/reload
// so we need to detach event listeners
window.removeEventListener(orphanEventId, orphanCheck, true);

40
content/install-hook-userstyles.js
View File

@ -174,7 +174,7 @@
}
function orphanCheck() {
if (chrome.i18n) return true;
if (chrome.runtime.id) return true;
removeEventListener(orphanEventId, orphanCheck, true);
removeEventListener('click', onClick, true);
removeEventListener('change', onChange);
@ -185,42 +185,46 @@
})();
function inPageContext(eventId, eventIdHost, styleId, apiUrl) {
window.isInstalled = true;
const {dispatchEvent, CustomEvent, removeEventListener} = window;
const apply = Map.call.bind(Map.apply);
const CR = chrome.runtime;
const {sendMessage} = CR;
const SEND = 'sendMessage';
const RP = Response.prototype;
const origJson = RP.json;
let done, vars;
CR.sendMessage = function (id, msg, opts, cb = opts) {
if (id === 'fjnbnpbmkenffdnngjfgmeleoegfcffe' &&
const ORIG = {json: RP.json, [SEND]: CR[SEND]};
let done, orphaned, vars;
CR[SEND] = ovrSend;
RP.json = ovrJson;
window.isInstalled = true;
addEventListener(eventId, onCommand, true);
function ovrSend(id, msg, opts, cb = opts) {
if (!orphaned &&
id === 'fjnbnpbmkenffdnngjfgmeleoegfcffe' &&
msg && msg.type === 'deleteStyle' &&
typeof cb === 'function') {
cb(true);
} else {
return sendMessage(...arguments);
return ORIG[SEND](...arguments);
}
};
RP.json = async function () {
const res = await apply(origJson, this, arguments);
}
async function ovrJson() {
const res = await apply(ORIG.json, this, arguments);
try {
if (!done && this.url === apiUrl) {
RP.json = origJson;
done = true; // will be used if called by another script that saved our RP.json hook
if (RP.json === ovrJson) RP.json = ORIG.json;
done = true;
send(res);
setVars(res);
}
} catch (e) {}
return res;
};
addEventListener(eventId, onCommand, true);
}
function onCommand(e) {
if (e.detail === 'quit') {
removeEventListener(eventId, onCommand, true);
CR.sendMessage = sendMessage;
RP.json = origJson;
done = true;
// We can restore the hooks only if another script didn't modify them
if (CR[SEND] === ovrSend) CR[SEND] = ovrSend;
if (RP.json === ovrJson) RP.json = ORIG.json;
done = orphaned = true;
} else if (/^vars:/.test(e.detail)) {
vars = JSON.parse(e.detail.slice(5));
} else if (e.relatedTarget) {