From 0bbe831bcd186bd36b5f7b6b1c239a90c7dca5dd Mon Sep 17 00:00:00 2001
From: Simon Parri <simonparri@ganzeria.com>
Date: Tue, 23 Sep 2025 09:10:45 -0500
Subject: Add tabs/by-id/*/capture-url.txt for current URL+text fragment

---
 extension/background.js | 10 ++++++++++
 extension/currentURL.js | 11 +++++++++++
 2 files changed, 21 insertions(+)
 create mode 100644 extension/currentURL.js

diff --git a/extension/background.js b/extension/background.js
index c6cf5b8..1b8960a 100644
--- a/extension/background.js
+++ b/extension/background.js
@@ -326,6 +326,10 @@ Routes["/tabs/by-id"] = {
     return (await browser.tabs.executeScript(tabId, {code}))[0];
   });
 
+  const routeFromScriptFile = file => makeRouteWithContents(async ({tabId}) => {
+    return (await browser.tabs.executeScript(tabId, {file}))[0];
+  });
+
   Routes["/tabs/by-id/#TAB_ID/url.txt"] = {
     description: `Text file containing the current URL of this tab.`,
     usage: ['cat $0',
@@ -349,6 +353,12 @@ Routes["/tabs/by-id"] = {
     ...routeFromScript(`document.body.innerHTML`)
   };
 
+  Routes["/tabs/by-id/#TAB_ID/capture-url.txt"] = {
+    description: `Text file containing the current URL + text fragment of this tab.`,
+    usage: 'cat $0',
+    ...routeFromScriptFile("/currentURL.js")
+  };
+
   Routes["/tabs/by-id/#TAB_ID/active"] = {
     description: 'Text file containing `true` or `false` depending on whether this tab is active in its window.',
     usage: ['cat $0',
diff --git a/extension/currentURL.js b/extension/currentURL.js
new file mode 100644
index 0000000..0aeab92
--- /dev/null
+++ b/extension/currentURL.js
@@ -0,0 +1,11 @@
+function encode(str) {
+  return encodeURIComponent(str).replace("-", "%2D")
+}
+
+let sel = window.document.getSelection(),
+    ctx = sel?.anchorNode?.parentElement?.textContent?.split(sel),
+    anc = sel.toString() ? `:~:text=${ctx[0] ? encode(ctx[0])+"-," : ""}${sel}${ctx[1] ? ",-"+encode(ctx[1]) : ""}` : ""
+
+let url = new URL(window.location)
+if (anc) url.hash = anc
+url.toString()
-- 
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