Fix an issue with symbol lookup identifying path names in Diffusion

Summary:
Depends on D18939. Ref T13047. Symbol lookup can be activated from a diff (in Differential or Diffusion) or from the static view of a file at a particular commit.

In the latter case, we need to figure out the path a little differently. The character and line number approaches still work as written.

Test Plan:
  - Command-clicked symbols in the Diffusion browse view with blame on and off; saw path, line and char populate properly.
  - Command-clicked symbols in Differential diff view to check I didn't break anything.

Reviewers: amckinley

Reviewed By: amckinley

Maniphest Tasks: T13047

Differential Revision: https://secure.phabricator.com/D18940

resources/celerity/map.php

@@ -13,7 +13,7 @@ return array(
     'core.pkg.js' => '4c79d74f',
     'darkconsole.pkg.js' => '1f9a31bc',
     'differential.pkg.css' => '45951e9e',
-    'differential.pkg.js' => 'b69ae3ec',
+    'differential.pkg.js' => '19ee9979',
     'diffusion.pkg.css' => 'a2d17c7d',
     'diffusion.pkg.js' => '6134c5a1',
     'favicon.ico' => '30672e08',
@@ -443,7 +443,7 @@ return array(
     'rsrc/js/application/releeph/releeph-preview-branch.js' => 'b2b4fbaf',
     'rsrc/js/application/releeph/releeph-request-state-change.js' => 'a0b57eb8',
     'rsrc/js/application/releeph/releeph-request-typeahead.js' => 'de2e896f',
-    'rsrc/js/application/repository/repository-crossreference.js' => 'fc2d8ffd',
+    'rsrc/js/application/repository/repository-crossreference.js' => '2ab10a76',
     'rsrc/js/application/search/behavior-reorder-profile-menu-items.js' => 'e2e0a072',
     'rsrc/js/application/search/behavior-reorder-queries.js' => 'e9581f08',
     'rsrc/js/application/slowvote/behavior-slowvote-embed.js' => '887ad43f',
@@ -692,7 +692,7 @@ return array(
     'javelin-behavior-reorder-applications' => '76b9fc3e',
     'javelin-behavior-reorder-columns' => 'e1d25dfb',
     'javelin-behavior-reorder-profile-menu-items' => 'e2e0a072',
-    'javelin-behavior-repository-crossreference' => 'fc2d8ffd',
+    'javelin-behavior-repository-crossreference' => '2ab10a76',
     'javelin-behavior-scrollbar' => '834a1173',
     'javelin-behavior-search-reorder-queries' => 'e9581f08',
     'javelin-behavior-select-content' => 'bf5374ef',
@@ -1088,6 +1088,12 @@ return array(
       'javelin-install',
       'javelin-util',
     ),
+    '2ab10a76' => array(
+      'javelin-behavior',
+      'javelin-dom',
+      'javelin-stratcom',
+      'javelin-uri',
+    ),
     '2ae077e1' => array(
       'javelin-behavior',
       'javelin-dom',
@@ -2159,12 +2165,6 @@ return array(
       'javelin-install',
       'javelin-dom',
     ),
-    'fc2d8ffd' => array(
-      'javelin-behavior',
-      'javelin-dom',
-      'javelin-stratcom',
-      'javelin-uri',
-    ),
     'fc91ab6c' => array(
       'javelin-behavior',
       'javelin-dom',

src/applications/diffusion/controller/DiffusionBrowseController.php

@@ -658,6 +658,11 @@ final class DiffusionBrowseController extends DiffusionController {
       ->setBackground(PHUIObjectBoxView::BLUE_PROPERTY)
       ->appendChild($corpus)
       ->addClass('diffusion-mobile-view')
+      ->addSigil('diffusion-file-content-view')
+      ->setMetadata(
+        array(
+          'path' => $this->getDiffusionRequest()->getPath(),
+        ))
       ->setCollapsed(true);
 
     $messages = array();

webroot/rsrc/js/application/repository/repository-crossreference.js

@@ -94,12 +94,15 @@ JX.behavior('repository-crossreference', function(config, statics) {
     };
     var c = target.className;
     c = c.replace(classHighlight, '').trim();
+
     if (class_map[c]) {
       query.type = class_map[c];
     }
+
     if (target.hasAttribute('data-symbol-context')) {
       query.context = target.getAttribute('data-symbol-context');
     }
+
     if (target.hasAttribute('data-symbol-name')) {
       symbol = target.getAttribute('data-symbol-name');
     }
@@ -176,13 +179,26 @@ JX.behavior('repository-crossreference', function(config, statics) {
   }
 
   function getPath(target) {
-    var changeset = JX.DOM.findAbove(target, 'div', 'differential-changeset');
-
-    if (!changeset) {
-      return null;
+    // This method works in Differential, when browsing a changset.
+    var changeset;
+    try {
+      changeset = JX.DOM.findAbove(target, 'div', 'differential-changeset');
+      return JX.Stratcom.getData(changeset).path;
+    } catch (ex) {
+      // Ignore.
     }
 
-    return JX.Stratcom.getData(changeset).path;
+    // This method works in Diffusion, when viewing the content of a file at
+    // a particular commit.
+    var file;
+    try {
+      file = JX.DOM.findAbove(target, 'div', 'diffusion-file-content-view');
+      return JX.Stratcom.getData(file).path;
+    } catch (ex) {
+      // Ignore.
+    }
+
+    return null;
   }
 
   function getChar(target) {