From b8769260ae46b31f4b98d90d3f82160a6d1d106b Mon Sep 17 00:00:00 2001
From: Eugen Neuber <eugen.neuber@tugraz.at>
Date: Wed, 13 Jan 2021 07:33:48 +0100
Subject: [PATCH] Add some code for an observer
(only a prove of concept)
---
packages/provider/src/provider.js | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
diff --git a/packages/provider/src/provider.js b/packages/provider/src/provider.js
index 52eda0ac..014090ee 100644
--- a/packages/provider/src/provider.js
+++ b/packages/provider/src/provider.js
@@ -97,6 +97,25 @@ export class Provider extends HTMLElement {
e.stopPropagation();
}
}, false);
+
+ // Options for the observer (which mutations to observe)
+ const config = { attributes: true, childList: false, subtree: false };
+
+ // Callback function to execute when mutations are observed
+ const callback = function(mutationsList, observer) {
+ // Use traditional 'for loops' for IE 11
+ for(const mutation of mutationsList) {
+ if (mutation.type === 'attributes') {
+ console.log('The ' + mutation.attributeName + ' attribute was modified.');
+ }
+ }
+ };
+
+ // Create an observer instance linked to the callback function
+ const observer = new MutationObserver(callback);
+
+ // Start observing the target node for configured mutations
+ observer.observe(this, config);
}
id() {
--
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