open.source/stylus
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

fixup: innerObserver

Browse Source
This commit is contained in:
tophf 2020-03-16 13:18:17 +03:00
parent d4317878db
commit 08f90ff891
1 changed files with 8 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
content/style-injector.js
View File

@ -313,7 +313,11 @@ self.createStyleInjector = self.INJECTED === 1 ? self.createStyleInjector : ({
let digest = 0;
let lastCalledTime = NaN;
let observing = false;
const observer = new MutationObserver(() => {
const observer = new MutationObserver(onMutation);
const innerObserver = new MutationObserver(onMutation);
return {evade, start, stop};
function onMutation() {
if (digest) {
if (performance.now() - lastCalledTime > 1000) {
digest = 0;
@ -326,8 +330,7 @@ self.createStyleInjector = self.INJECTED === 1 ? self.createStyleInjector : ({
digest++;
lastCalledTime = performance.now();
}
});
return {evade, start, stop};
}
function evade(fn) {
const restore = observing && start;
@ -339,14 +342,13 @@ self.createStyleInjector = self.INJECTED === 1 ? self.createStyleInjector : ({
function start() {
if (observing) return;
observer.observe(document.documentElement, {childList: true});
observer.observe(container, {childList: true});
innerObserver.observe(container, {childList: true});
observing = true;
}
function stop() {
if (!observing) return;
// FIXME: do we need this?
observer.takeRecords();
innerObserver.disconnect();
observer.disconnect();
observing = false;
}