Make "View" links on Differential inline comment previews work again

Summary:
Ref T11114. Recent changes broke the links to jump to inline comments from the previews because they get hooked up with JS.

Restore the linking behavior.

Test Plan: Clicked "View" on an inline comment preview, jumped to that comment.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T11114

Differential Revision: https://secure.phabricator.com/D17131

webroot/rsrc/js/application/diff/behavior-preview-link.js

@@ -0,0 +1,36 @@
+/**
+ * @provides javelin-behavior-diff-preview-link
+ * @requires javelin-behavior
+ *           javelin-stratcom
+ *           javelin-dom
+ */
+
+JX.behavior('diff-preview-link', function(config, statics) {
+  if (statics.initialized) {
+    return;
+  }
+  statics.initialized = true;
+
+  var pht = JX.phtize(config.pht);
+
+  // After inline comment previews are rendered, hook up the links to the
+  // comments that are visible on the current page.
+  function link_inline_preview(e) {
+    var root = e.getData().rootNode;
+    var links = JX.DOM.scry(root, 'a',  'differential-inline-preview-jump');
+
+    for (var ii = 0; ii < links.length; ii++) {
+      var data = JX.Stratcom.getData(links[ii]);
+      try {
+        JX.$(data.anchor);
+        links[ii].href = '#' + data.anchor;
+        JX.DOM.setContent(links[ii], pht('view'));
+      } catch (ignored) {
+        // This inline comment isn't visible, e.g. on some other diff.
+      }
+    }
+
+  }
+
+  JX.Stratcom.listen('EditEngine.didCommentPreview', null, link_inline_preview);
+});