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feature: add orphan check to install-hook-openusercss

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DecentM 2018-02-08 05:04:12 +01:00
parent 6853158790
commit 46823a59e8
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1 changed files with 20 additions and 3 deletions
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23
content/install-hook-openusercss.js
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@ -153,9 +153,26 @@
window.addEventListener('message', installHandler);
};
window.removeEventListener('message', installHandler);
window.removeEventListener('message', handshakeHandler);
window.removeEventListener('message', installedHandler);
const orphanCheck = () => {
const eventName = chrome.runtime.id + '-install-hook-openusercss';
const orphanCheckRequest = () => {
// If we can't get the UI language, it means we are orphaned, and should
// remove our event handlers
if (chrome.i18n && chrome.i18n.getUILanguage()) return true;
window.removeEventListener('message', installHandler);
window.removeEventListener('message', handshakeHandler);
window.removeEventListener('message', installedHandler);
window.removeEventListener(eventName, orphanCheckRequest, true);
};
// Send the event before we listen for it, for other possible
// running instances of the content script.
dispatchEvent(new Event(eventName));
addEventListener(eventName, orphanCheckRequest, true);
};
orphanCheck();
attachHandshakeListeners();
attachInstallListeners();