fix(district): Attaches pacer_case_id to entry links

Adds the `pacer_case_id` as a query parameter to entry links, allowing it to be easily accessible from the URL even if it's not present in the subsequent page's DOM. This will simplify the process of navigating between pages while retaining important case information.

CHANGES.md

@@ -12,6 +12,7 @@ Changes:
 
 Fixes:
  - Corrected typo in build script, ensuring correct favicon path for Firefox releases([379](https://github.com/freelawproject/recap/issues/379), [397](https://github.com/freelawproject/recap-chrome/pull/397))
+ - Attaches the pacer_case_id as a query parameter to entry links in District Courts Reports ([369](https://github.com/freelawproject/recap/issues/369)).
 
 For developers:
  - Nothing yet

src/content_delegate.js

@@ -605,17 +605,33 @@ ContentDelegate.prototype.attachRecapLinkToEligibleDocs = async function () {
     if (!result) continue;
 
     let href = `https://storage.courtlistener.com/${result.filepath_local}`;
-    let recap_link = $('<a/>', {
+    let recapLink = $('<a/>', {
       class: 'recap-inline',
       title: 'Available for free from the RECAP Archive.',
       href: href,
     });
-    recap_link.append(
+    recapLink.append(
       $('<img/>').attr({
         src: chrome.runtime.getURL('assets/images/icon-16.png'),
       })
     );
-    recap_link.insertAfter(this.links[i]);
+    recapLink.insertAfter(this.links[i]);
+
+    // Attaches the case ID to the entry link as a query parameter. This allows
+    // us to access it from the URL, even if it's not available in the
+    // subsequent page's DOM.
+    entryLink = this.links[i];
+    let url = new URL(entryLink.href);
+    url.searchParams.set('caseId', this.pacer_case_id);
+    entryLink.setAttribute('href', url.toString());
+
+    entryLink.removeAttribute('onclick');
+    entryLink.setAttribute('target', '_self');
+    entryLink.dataset.recap =
+      'Modified by RECAP Extension to add caseId' + 'attribute.';
+    // clone and replace anchor elements to remove all listeners
+    let clonedNode = entryLink.cloneNode(true);
+    entryLink.replaceWith(clonedNode);
   }
   let spinner = document.getElementById('recap-button-spinner');
   if (spinner) {