add a helpful userscript

Open Fedi In My Instance.user.js

@@ -0,0 +1,89 @@
+// ==UserScript==
+// @name         Open Fedi In My Instance
+// @namespace    http://pix.solarpunk.moe
+// @version      0.1
+// @description  Open a Pixelfed post on your own instance by clicking the external link icon! For now, this is Pixelfed only.
+// @author       Vivi
+// @match        https://*/*
+// @icon         https://www.google.com/s3/favicons?sz=64&domain=pixelfed.social
+// @grant        GM_xmlhttpRequest
+// @connect      pix.solarpunk.moe
+// ==/UserScript==
+
+(function() {
+    'use strict';
+
+    const MY_INSTANCE = 'https://pix.solarpunk.moe';
+
+    var MutationObserver = window.MutationObserver;
+    var myObserver = new MutationObserver (mutationHandler);
+    var obsConfig = {
+        childList: true, attributes: true,
+        subtree: true, attributeFilter: ['class']
+    };
+
+    myObserver.observe (document, obsConfig);
+
+    function mutationHandler (mutationRecords) {
+
+        mutationRecords.forEach ( (mutation) => {
+            if (mutation.type == "childList"
+                && typeof mutation.addedNodes == 'object'
+                && mutation.addedNodes.length) {
+                for (let node of mutation.addedNodes) {
+                    processNode(node);
+                }
+            }
+            else if (mutation.type == 'attributes') {
+                processNode(mutation.target);
+            }
+        } );
+    }
+
+    function processNode (node) {
+        if (node.nodeType !== 1) {
+            return;
+        }
+
+        if (!node.classList.contains('timeline-status-component')) {
+            return;
+        }
+
+        let linkNode = node.querySelector('.timestamp');
+        if (!linkNode) {
+            return;
+        }
+
+        let link = linkNode.href;
+
+        let externalButton = document.createElement('button');
+
+        let icon = document.createElement('i');
+        externalButton.appendChild(icon);
+        icon.classList = 'far fa-external-link';
+
+        externalButton.classList = 'btn btn-dark';
+        externalButton.onclick = () => {
+            icon.classList = 'far fa-spinner fa-pulse';
+            GM_xmlhttpRequest({
+                method: 'GET',
+                url: `${MY_INSTANCE}/api/search?scope=remote&v=2&src=metro&q=${encodeURIComponent(link)}`,
+                responseType: 'json',
+                onerror: (e) => {
+                    console.error(e);
+                    icon.classList = 'far fa-external-link';
+                },
+                onload: (r) => {
+                    window.open(`${MY_INSTANCE}${r.response.posts[0].url}`,'popup','width=365,height=960');
+                    icon.classList = 'far fa-external-link';
+                }
+            });
+
+        };
+
+        // Find the dot menu
+        let dotMenu = node.querySelector('.card-header > .media > .btn-link');
+        dotMenu.before(externalButton);
+    }
+
+})();