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Enhance: faster msg.sendBg (#774)

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eight 2019-09-09 12:40:07 +08:00 committed by narcolepticinsomniac
parent 0e9d5ce08c
commit a7445011a9
1 changed files with 12 additions and 4 deletions
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16
js/msg.js
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@ -41,11 +41,19 @@ const msg = (() => {
if (isBg) { if (isBg) {
return Promise.resolve(window); return Promise.resolve(window);
} }
if (!chrome.runtime.getBackgroundPage) { // try using extension.getBackgroundPage because runtime.getBackgroundPage is too slow
return Promise.resolve(); // https://github.com/openstyles/stylus/issues/771
if (chrome.extension.getBackgroundPage) {
const bg = chrome.extension.getBackgroundPage();
if (bg && bg.document && bg.document.readyState !== 'loading') {
return Promise.resolve(bg);
}
} }
return promisify(chrome.runtime.getBackgroundPage.bind(chrome.runtime))() if (chrome.runtime.getBackgroundPage) {
.catch(() => null); return promisify(chrome.runtime.getBackgroundPage.bind(chrome.runtime))()
.catch(() => null);
}
return Promise.resolve(null);
} }
function send(data, target = 'extension') { function send(data, target = 'extension') {