Add comment linking to Maniphest and Differential

Summary:
Allows you to link to comments with "D123#3" or "T123#3", then adds a pile of JS
to try to make it not terrible. :/

The thing I'm trying to avoid here is when someone says "look at this!
http://blog.com/#comment-239291" and you click and your browser jumps somewhere
random and you have no idea which comment they meant. Since I really hate this,
I've tried to avoid it by making sure the comment is always highlighted.

Test Plan:
Put T1#1 and D1#1 in remarkup and verified they linked properly.

Clicked anchors on individual comments.

Faked all comments hidden in Differential and verified they expanded on anchor
or anchor change.

Reviewed By: aran
Reviewers: aran, tomo, mroch, jungejason, tuomaspelkonen
CC: aran, epriestley
Differential Revision: 383

externals/javelin

@@ -1 +1 @@
-Subproject commit 7ac64cd03d89d6d5f8c7f85b32c9611d3866ea2b
+Subproject commit c714cff45db83fc8c34e82b7ec1155b7c442dc7b

src/__celerity_resource_map__.php

@@ -172,7 +172,7 @@ celerity_register_resource_map(array(
   ),
   'differential-revision-comment-css' =>
   array(
-    'uri' => '/res/e3ea8c34/rsrc/css/application/differential/revision-comment.css',
+    'uri' => '/res/e3539439/rsrc/css/application/differential/revision-comment.css',
     'type' => 'css',
     'requires' =>
     array(
@@ -188,6 +188,16 @@ celerity_register_resource_map(array(
     ),
     'disk' => '/rsrc/css/application/differential/revision-comment-list.css',
   ),
+  0 =>
+  array(
+    'uri' => '/res/39de799e/rsrc/js/javelin/docs/Base.js',
+    'type' => 'js',
+    'requires' =>
+    array(
+      0 => 'javelin-install',
+    ),
+    'disk' => '/rsrc/js/javelin/docs/Base.js',
+  ),
   'differential-revision-detail-css' =>
   array(
     'uri' => '/res/ea9de420/rsrc/css/application/differential/revision-detail.css',
@@ -279,16 +289,6 @@ celerity_register_resource_map(array(
     ),
     'disk' => '/rsrc/js/javelin/lib/behavior.js',
   ),
-  0 =>
-  array(
-    'uri' => '/res/39de799e/rsrc/js/javelin/docs/Base.js',
-    'type' => 'js',
-    'requires' =>
-    array(
-      0 => 'javelin-install',
-    ),
-    'disk' => '/rsrc/js/javelin/docs/Base.js',
-  ),
   'javelin-behavior-aphront-basic-tokenizer' =>
   array(
     'uri' => '/res/bce3961b/rsrc/js/application/core/behavior-tokenizer.js',
@@ -424,7 +424,7 @@ celerity_register_resource_map(array(
   ),
   'javelin-behavior-differential-show-all-comments' =>
   array(
-    'uri' => '/res/b7c7e1ee/rsrc/js/application/differential/behavior-show-all-comments.js',
+    'uri' => '/res/bcc990f0/rsrc/js/application/differential/behavior-show-all-comments.js',
     'type' => 'js',
     'requires' =>
     array(
@@ -560,6 +560,19 @@ celerity_register_resource_map(array(
     ),
     'disk' => '/rsrc/js/application/core/behavior-object-selector.js',
   ),
+  'javelin-behavior-phabricator-watch-anchor' =>
+  array(
+    'uri' => '/res/bb6fa5b2/rsrc/js/application/core/behavior-watch-anchor.js',
+    'type' => 'js',
+    'requires' =>
+    array(
+      0 => 'javelin-behavior',
+      1 => 'javelin-stratcom',
+      2 => 'javelin-util',
+      3 => 'javelin-dom',
+    ),
+    'disk' => '/rsrc/js/application/core/behavior-watch-anchor.js',
+  ),
   'javelin-behavior-workflow' =>
   array(
     'uri' => '/res/079f49c3/rsrc/js/application/core/behavior-workflow.js',
@@ -574,7 +587,7 @@ celerity_register_resource_map(array(
   ),
   'javelin-dom' =>
   array(
-    'uri' => '/res/770d72cd/rsrc/js/javelin/lib/DOM.js',
+    'uri' => '/res/43e9e2de/rsrc/js/javelin/lib/DOM.js',
     'type' => 'js',
     'requires' =>
     array(
@@ -620,7 +633,7 @@ celerity_register_resource_map(array(
   ),
   'javelin-magical-init' =>
   array(
-    'uri' => '/res/ce002e50/rsrc/js/javelin/core/init.js',
+    'uri' => '/res/92e7f37e/rsrc/js/javelin/core/init.js',
     'type' => 'js',
     'requires' =>
     array(
@@ -641,7 +654,7 @@ celerity_register_resource_map(array(
   ),
   'javelin-request' =>
   array(
-    'uri' => '/res/72a23e59/rsrc/js/javelin/lib/Request.js',
+    'uri' => '/res/1ed0d596/rsrc/js/javelin/lib/Request.js',
     'type' => 'js',
     'requires' =>
     array(
@@ -811,7 +824,7 @@ celerity_register_resource_map(array(
   ),
   'maniphest-transaction-detail-css' =>
   array(
-    'uri' => '/res/14758b00/rsrc/css/application/maniphest/transaction-detail.css',
+    'uri' => '/res/7ee02b5e/rsrc/css/application/maniphest/transaction-detail.css',
     'type' => 'css',
     'requires' =>
     array(
@@ -1002,23 +1015,6 @@ celerity_register_resource_map(array(
       'uri' => '/res/pkg/122a6b6d/workflow.pkg.js',
       'type' => 'js',
     ),
-    '1ac25e8a' =>
-    array (
-      'name' => 'differential.pkg.css',
-      'symbols' =>
-      array (
-        0 => 'differential-core-view-css',
-        1 => 'differential-changeset-view-css',
-        2 => 'differential-revision-detail-css',
-        3 => 'differential-revision-history-css',
-        4 => 'differential-table-of-contents-css',
-        5 => 'differential-revision-comment-css',
-        6 => 'differential-revision-add-comment-css',
-        7 => 'differential-revision-comment-list-css',
-      ),
-      'uri' => '/res/pkg/1ac25e8a/differential.pkg.css',
-      'type' => 'css',
-    ),
     '33f413ef' =>
     array (
       'name' => 'typeahead.pkg.js',
@@ -1035,6 +1031,23 @@ celerity_register_resource_map(array(
       'uri' => '/res/pkg/33f413ef/typeahead.pkg.js',
       'type' => 'js',
     ),
+    '613cf273' =>
+    array (
+      'name' => 'differential.pkg.css',
+      'symbols' =>
+      array (
+        0 => 'differential-core-view-css',
+        1 => 'differential-changeset-view-css',
+        2 => 'differential-revision-detail-css',
+        3 => 'differential-revision-history-css',
+        4 => 'differential-table-of-contents-css',
+        5 => 'differential-revision-comment-css',
+        6 => 'differential-revision-add-comment-css',
+        7 => 'differential-revision-comment-list-css',
+      ),
+      'uri' => '/res/pkg/613cf273/differential.pkg.css',
+      'type' => 'css',
+    ),
     'a6102fe7' =>
     array (
       'name' => 'core.pkg.css',
@@ -1059,7 +1072,7 @@ celerity_register_resource_map(array(
       'uri' => '/res/pkg/a6102fe7/core.pkg.css',
       'type' => 'css',
     ),
-    'd985d27a' =>
+    'db95a6d0' =>
     array (
       'name' => 'javelin.pkg.js',
       'symbols' =>
@@ -1075,7 +1088,7 @@ celerity_register_resource_map(array(
         8 => 'javelin-json',
         9 => 'javelin-uri',
       ),
-      'uri' => '/res/pkg/d985d27a/javelin.pkg.js',
+      'uri' => '/res/pkg/db95a6d0/javelin.pkg.js',
       'type' => 'js',
     ),
     'ed383f69' =>
@@ -1104,16 +1117,16 @@ celerity_register_resource_map(array(
     'aphront-table-view-css' => 'a6102fe7',
     'aphront-tokenizer-control-css' => 'a6102fe7',
     'aphront-typeahead-control-css' => 'a6102fe7',
-    'differential-changeset-view-css' => '1ac25e8a',
+    'differential-changeset-view-css' => '613cf273',
-    'differential-core-view-css' => '1ac25e8a',
+    'differential-core-view-css' => '613cf273',
-    'differential-revision-add-comment-css' => '1ac25e8a',
+    'differential-revision-add-comment-css' => '613cf273',
-    'differential-revision-comment-css' => '1ac25e8a',
+    'differential-revision-comment-css' => '613cf273',
-    'differential-revision-comment-list-css' => '1ac25e8a',
+    'differential-revision-comment-list-css' => '613cf273',
-    'differential-revision-detail-css' => '1ac25e8a',
+    'differential-revision-detail-css' => '613cf273',
-    'differential-revision-history-css' => '1ac25e8a',
+    'differential-revision-history-css' => '613cf273',
-    'differential-table-of-contents-css' => '1ac25e8a',
+    'differential-table-of-contents-css' => '613cf273',
     'diffusion-commit-view-css' => '03ef179e',
-    'javelin-behavior' => 'd985d27a',
+    'javelin-behavior' => 'db95a6d0',
     'javelin-behavior-aphront-basic-tokenizer' => '33f413ef',
     'javelin-behavior-differential-diff-radios' => 'ed383f69',
     'javelin-behavior-differential-edit-inline-comments' => 'ed383f69',
@@ -1121,22 +1134,22 @@ celerity_register_resource_map(array(
     'javelin-behavior-differential-populate' => 'ed383f69',
     'javelin-behavior-differential-show-more' => 'ed383f69',
     'javelin-behavior-workflow' => '122a6b6d',
-    'javelin-dom' => 'd985d27a',
+    'javelin-dom' => 'db95a6d0',
-    'javelin-event' => 'd985d27a',
+    'javelin-event' => 'db95a6d0',
-    'javelin-install' => 'd985d27a',
+    'javelin-install' => 'db95a6d0',
-    'javelin-json' => 'd985d27a',
+    'javelin-json' => 'db95a6d0',
     'javelin-mask' => '122a6b6d',
-    'javelin-request' => 'd985d27a',
+    'javelin-request' => 'db95a6d0',
-    'javelin-stratcom' => 'd985d27a',
+    'javelin-stratcom' => 'db95a6d0',
     'javelin-tokenizer' => '33f413ef',
     'javelin-typeahead' => '33f413ef',
     'javelin-typeahead-normalizer' => '33f413ef',
     'javelin-typeahead-ondemand-source' => '33f413ef',
     'javelin-typeahead-preloaded-source' => '33f413ef',
     'javelin-typeahead-source' => '33f413ef',
-    'javelin-uri' => 'd985d27a',
+    'javelin-uri' => 'db95a6d0',
-    'javelin-util' => 'd985d27a',
+    'javelin-util' => 'db95a6d0',
-    'javelin-vector' => 'd985d27a',
+    'javelin-vector' => 'db95a6d0',
     'javelin-workflow' => '122a6b6d',
     'phabricator-core-buttons-css' => 'a6102fe7',
     'phabricator-core-css' => 'a6102fe7',

src/__phutil_library_map__.php

@@ -410,6 +410,7 @@ phutil_register_library_map(array(
     'PhabricatorRemarkupRuleDiffusion' => 'infrastructure/markup/remarkup/markuprule/diffusion',
     'PhabricatorRemarkupRuleImageMacro' => 'infrastructure/markup/remarkup/markuprule/imagemacro',
     'PhabricatorRemarkupRuleManiphest' => 'infrastructure/markup/remarkup/markuprule/maniphest',
+    'PhabricatorRemarkupRuleObjectName' => 'infrastructure/markup/remarkup/markuprule/objectname',
     'PhabricatorRemarkupRuleProxyImage' => 'infrastructure/markup/remarkup/markuprule/proxyimage',
     'PhabricatorRemarkupRuleYoutube' => 'infrastructure/markup/remarkup/markuprule/youtube',
     'PhabricatorRepository' => 'applications/repository/storage/repository',
@@ -841,10 +842,11 @@ phutil_register_library_map(array(
     'PhabricatorProjectProfile' => 'PhabricatorProjectDAO',
     'PhabricatorProjectProfileController' => 'PhabricatorProjectController',
     'PhabricatorRedirectController' => 'PhabricatorController',
-    'PhabricatorRemarkupRuleDifferential' => 'PhutilRemarkupRule',
+    'PhabricatorRemarkupRuleDifferential' => 'PhabricatorRemarkupRuleObjectName',
     'PhabricatorRemarkupRuleDiffusion' => 'PhutilRemarkupRule',
     'PhabricatorRemarkupRuleImageMacro' => 'PhutilRemarkupRule',
-    'PhabricatorRemarkupRuleManiphest' => 'PhutilRemarkupRule',
+    'PhabricatorRemarkupRuleManiphest' => 'PhabricatorRemarkupRuleObjectName',
+    'PhabricatorRemarkupRuleObjectName' => 'PhutilRemarkupRule',
     'PhabricatorRemarkupRuleProxyImage' => 'PhutilRemarkupRule',
     'PhabricatorRemarkupRuleYoutube' => 'PhutilRemarkupRule',
     'PhabricatorRepository' => 'PhabricatorRepositoryDAO',

src/applications/auth/controller/login/PhabricatorLoginController.php

@@ -42,7 +42,7 @@ class PhabricatorLoginController extends PhabricatorAuthController {
     $error_view = null;
     if ($password_auth) {
       $error = false;
-      $username = $request->getCookie('phusr');
+      $username_or_email = $request->getCookie('phusr');
       if ($request->isFormPost()) {
         $username_or_email = $request->getStr('username_or_email');
 

src/applications/differential/view/revisioncomment/DifferentialRevisionCommentView.php

@@ -25,6 +25,7 @@ final class DifferentialRevisionCommentView extends AphrontView {
   private $inlines;
   private $changesets;
   private $target;
+  private $commentNumber;
 
   public function setComment($comment) {
     $this->comment = $comment;
@@ -61,6 +62,11 @@ final class DifferentialRevisionCommentView extends AphrontView {
     $this->target = $target;
   }
 
+  public function setCommentNumber($comment_number) {
+    $this->commentNumber = $comment_number;
+    return $this;
+  }
+
   public function render() {
 
     require_celerity_resource('phabricator-remarkup-css');
@@ -78,6 +84,24 @@ final class DifferentialRevisionCommentView extends AphrontView {
       $date = date('F jS, Y g:i:s A', $comment->getDateCreated());
     }
 
+    $info = array($date);
+
+    $comment_anchor = null;
+    $num = $this->commentNumber;
+    if ($num) {
+      Javelin::initBehavior('phabricator-watch-anchor');
+      $info[] = phutil_render_tag(
+        'a',
+        array(
+          'name' => 'comment-'.$num,
+          'href' => '#comment-'.$num,
+        ),
+        'Comment D'.$comment->getRevisionID().'#'.$num);
+      $comment_anchor = 'anchor-comment-'.$num;
+    }
+
+    $info = implode(' · ', $info);
+
     $author = $this->handles[$comment->getAuthorPHID()];
     $author_link = $author->renderLink();
 
@@ -189,21 +213,25 @@ final class DifferentialRevisionCommentView extends AphrontView {
       $background = "background-image: url('{$uri}');";
     }
 
-    return
+    return phutil_render_tag(
-      '<div class="differential-comment '.$action_class.'">'.
+      'div',
-        '<div class="differential-comment-head">'.
+      array(
-          '<div class="differential-comment-date">'.$date.'</div>'.
+        'class' => "differential-comment {$action_class}",
-          '<div class="differential-comment-title">'.$title.'</div>'.
+        'id'    => $comment_anchor,
-        '</div>'.
+      ),
-        '<div class="differential-comment-body" style="'.$background.'">'.
+      '<div class="differential-comment-head">'.
-          '<div class="differential-comment-content">'.
+        '<span class="differential-comment-info">'.$info.'</span>'.
-            '<div class="differential-comment-core">'.
+        '<span class="differential-comment-title">'.$title.'</span>'.
-              $content.
+        '<div style="clear: both;"></div>'.
-            '</div>'.
+      '</div>'.
-            $inline_render.
+      '<div class="differential-comment-body" style="'.$background.'">'.
+        '<div class="differential-comment-content">'.
+          '<div class="differential-comment-core">'.
+            $content.
           '</div>'.
+          $inline_render.
         '</div>'.
-      '</div>';
+      '</div>');
   }
 
 }

src/applications/differential/view/revisioncomment/__init__.php

@@ -8,6 +8,7 @@
 
 phutil_require_module('phabricator', 'applications/differential/constants/action');
 phutil_require_module('phabricator', 'infrastructure/celerity/api');
+phutil_require_module('phabricator', 'infrastructure/javelin/api');
 phutil_require_module('phabricator', 'view/base');
 
 phutil_require_module('phutil', 'markup');

src/applications/differential/view/revisioncommentlist/DifferentialRevisionCommentListView.php

@@ -63,7 +63,7 @@ final class DifferentialRevisionCommentListView extends AphrontView {
 
     $inlines = mgroup($this->inlines, 'getCommentID');
 
-
+    $num = 1;
     $html = array();
     foreach ($this->comments as $comment) {
       $view = new DifferentialRevisionCommentView();
@@ -73,6 +73,7 @@ final class DifferentialRevisionCommentListView extends AphrontView {
       $view->setInlineComments(idx($inlines, $comment->getID(), array()));
       $view->setChangesets($this->changesets);
       $view->setTargetDiff($this->target);
+      $view->setCommentNumber($num++);
 
       $html[] = $view->render();
     }
@@ -158,7 +159,7 @@ final class DifferentialRevisionCommentListView extends AphrontView {
     }
 
     return
-      '<div>'.
+      '<div class="differential-comment-list">'.
         implode("\n", $header).
         $hidden.
         implode("\n", $visible).

src/applications/maniphest/view/transactiondetail/ManiphestTransactionDetailView.php

@@ -23,6 +23,7 @@ class ManiphestTransactionDetailView extends AphrontView {
   private $markupEngine;
   private $forEmail;
   private $preview;
+  private $commentNumber;
 
   private $renderSummaryOnly;
   private $renderFullSummary;
@@ -65,6 +66,11 @@ class ManiphestTransactionDetailView extends AphrontView {
     return $this->renderFullSummary;
   }
 
+  public function setCommentNumber($comment_number) {
+    $this->commentNumber = $comment_number;
+    return $this;
+  }
+
   public function renderForEmail($with_date) {
     $this->forEmail = true;
 
@@ -174,16 +180,37 @@ class ManiphestTransactionDetailView extends AphrontView {
       $timestamp = phabricator_format_timestamp($transaction->getDateCreated());
     }
 
+    $info = array();
+    $info[] = $timestamp;
+
+
+    $comment_anchor = null;
+    $num = $this->commentNumber;
+    if ($num) {
+      Javelin::initBehavior('phabricator-watch-anchor');
+      $info[] = javelin_render_tag(
+        'a',
+        array(
+          'name' => 'comment-'.$num,
+          'href' => '#comment-'.$num,
+        ),
+        'Comment T'.$any_transaction->getTaskID().'#'.$num);
+      $comment_anchor = 'anchor-comment-'.$num;
+    }
+
+    $info = implode(' · ', $info);
+
     return phutil_render_tag(
       'div',
       array(
-        'class' =>  "maniphest-transaction-detail-container",
+        'class' => "maniphest-transaction-detail-container",
         'style' => "background-image: url('".$author->getImageURI()."')",
+        'id'    => $comment_anchor,
       ),
       '<div class="maniphest-transaction-detail-view '.$more_classes.'">'.
         '<div class="maniphest-transaction-header">'.
           '<div class="maniphest-transaction-timestamp">'.
-            $timestamp.
+            $info.
           '</div>'.
           $descs.
         '</div>'.

src/applications/maniphest/view/transactionlist/ManiphestTransactionListView.php

@@ -77,17 +77,19 @@ class ManiphestTransactionListView extends AphrontView {
       $groups[] = $group;
     }
 
+    $sequence = 1;
     foreach ($groups as $group) {
       $view = new ManiphestTransactionDetailView();
       $view->setTransactionGroup($group);
       $view->setHandles($this->handles);
       $view->setMarkupEngine($this->markupEngine);
       $view->setPreview($this->preview);
+      $view->setCommentNumber($sequence++);
       $views[] = $view->render();
     }
 
     return
-      '<div style="padding: .5em 1.5em;">'.
+      '<div class="maniphest-transaction-list-view">'.
         implode("\n", $views).
       '</div>';
   }

src/docs/userguide/remarkup.diviner

@@ -98,6 +98,10 @@ by mentioning the name of an object:
                 # You must specify at least 7 characters of the hash.
   T123          # Link to Maniphest task T123
 
+You can also link directly to a comment in Maniphest and Differential:
+
+  T123#4        # Link to comment #4 of T123
+
 = Quoting Text =
 
 To quote text, preface it with an ">":

src/infrastructure/celerity/response/CelerityStaticResourceResponse.php

@@ -43,9 +43,22 @@ final class CelerityStaticResourceResponse {
     return $this->metadataBlock;
   }
 
+  /**
+   * Register a behavior for initialization. NOTE: if $config is empty,
+   * a behavior will execute only once even if it is initialized multiple times.
+   * If $config is nonempty, the behavior will be invoked once for each config.
+   */
   public function initBehavior($behavior, array $config = array()) {
     $this->requireResource('javelin-behavior-'.$behavior);
-    $this->behaviors[$behavior][] = $config;
+
+    if (empty($this->behaviors[$behavior])) {
+      $this->behaviors[$behavior] = array();
+    }
+
+    if ($config) {
+      $this->behaviors[$behavior][] = $config;
+    }
+
     return $this;
   }
 

src/infrastructure/markup/remarkup/markuprule/differential/PhabricatorRemarkupRuleDifferential.php

@@ -20,18 +20,10 @@
  * @group markup
  */
 class PhabricatorRemarkupRuleDifferential
-  extends PhutilRemarkupRule {
+  extends PhabricatorRemarkupRuleObjectName {
 
-  public function apply($text) {
+  protected function getObjectNamePrefix() {
-    return preg_replace_callback(
+    return 'D';
-      '@\bD(\d+)\b@',
-      array($this, 'markupDifferentialLink'),
-      $text);
-  }
-
-  public function markupDifferentialLink($matches) {
-    return $this->getEngine()->storeText(
-      '<a href="/D'.$matches[1].'">D'.$matches[1].'</a>');
   }
 
 }

src/infrastructure/markup/remarkup/markuprule/differential/__init__.php

@@ -6,7 +6,7 @@
 
 
 
-phutil_require_module('phutil', 'markup/engine/remarkup/markuprule/base');
+phutil_require_module('phabricator', 'infrastructure/markup/remarkup/markuprule/objectname');
 
 
 phutil_require_source('PhabricatorRemarkupRuleDifferential.php');

src/infrastructure/markup/remarkup/markuprule/maniphest/PhabricatorRemarkupRuleManiphest.php

@@ -20,18 +20,10 @@
  * @group markup
  */
 class PhabricatorRemarkupRuleManiphest
-  extends PhutilRemarkupRule {
+  extends PhabricatorRemarkupRuleObjectName {
 
-  public function apply($text) {
+  protected function getObjectNamePrefix() {
-    return preg_replace_callback(
+    return 'T';
-      '@\bT(\d+)\b@',
-      array($this, 'markupManiphestLink'),
-      $text);
-  }
-
-  public function markupManiphestLink($matches) {
-    return $this->getEngine()->storeText(
-      '<a href="/T'.$matches[1].'">T'.$matches[1].'</a>');
   }
 
 }

src/infrastructure/markup/remarkup/markuprule/maniphest/__init__.php

@@ -6,7 +6,7 @@
 
 
 
-phutil_require_module('phutil', 'markup/engine/remarkup/markuprule/base');
+phutil_require_module('phabricator', 'infrastructure/markup/remarkup/markuprule/objectname');
 
 
 phutil_require_source('PhabricatorRemarkupRuleManiphest.php');

src/infrastructure/markup/remarkup/markuprule/objectname/PhabricatorRemarkupRuleObjectName.php

@@ -0,0 +1,57 @@
+<?php
+
+/*
+ * Copyright 2011 Facebook, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * @group markup
+ */
+abstract class PhabricatorRemarkupRuleObjectName
+  extends PhutilRemarkupRule {
+
+  abstract protected function getObjectNamePrefix();
+
+  public function apply($text) {
+    $prefix = $this->getObjectNamePrefix();
+    return preg_replace_callback(
+      "@\b{$prefix}(\d+)(?:#(\d+))?\b@",
+      array($this, 'markupObjectNameLink'),
+      $text);
+  }
+
+  public function markupObjectNameLink($matches) {
+    $prefix = $this->getObjectNamePrefix();
+    $id = $matches[1];
+
+    if (isset($matches[2])) {
+      $comment_id = $matches[2];
+      $href = "/{$prefix}{$id}#comment-{$comment_id}";
+      $text = "{$prefix}{$id}#{$comment_id}";
+    } else {
+      $href = "/{$prefix}{$id}";
+      $text = "{$prefix}{$id}";
+    }
+
+    return $this->getEngine()->storeText(
+      phutil_render_tag(
+        'a',
+        array(
+          'href' => $href,
+        ),
+        $text));
+  }
+
+}

src/infrastructure/markup/remarkup/markuprule/objectname/__init__.php

@@ -0,0 +1,13 @@
+<?php
+/**
+ * This file is automatically generated. Lint this module to rebuild it.
+ * @generated
+ */
+
+
+
+phutil_require_module('phutil', 'markup');
+phutil_require_module('phutil', 'markup/engine/remarkup/markuprule/base');
+
+
+phutil_require_source('PhabricatorRemarkupRuleObjectName.php');

src/view/form/base/AphrontFormView.php

@@ -65,14 +65,7 @@ final class AphrontFormView extends AphrontView {
   public function render() {
     require_celerity_resource('aphront-form-view-css');
 
-    static $initialized_behavior;
+    Javelin::initBehavior('aphront-form-disable-on-submit');
-    if (!$initialized_behavior) {
-      // TODO: This is sort of a yucky hack.
-      $initialized_behavior = true;
-      Javelin::initBehavior(
-        'aphront-form-disable-on-submit',
-        array());
-    }
 
     return javelin_render_tag(
       'form',

webroot/rsrc/css/application/differential/revision-comment.css

@@ -3,14 +3,29 @@
  */
 
 
-.differential-comment-date {
+.differential-comment {
+  padding: 3px 6px;
+  margin-bottom: 10px;
+  border: 1px solid transparent;
+}
+
+.differential-comment-list .anchor-target {
+  background-color: #ffffdd;
+  border-color: #ffff00;
+}
+
+.differential-comment-info {
   color:       #666666;
   float:       right;
   font-size:   11px;
-  margin:      0em;
+  margin:      0 0 3px;
   padding-top: 6px;
 }
 
+.differential-comment-info a {
+  font-weight: bold;
+}
+
 .differential-comment-title {
   font-weight:         bold;
   height:              16px;
@@ -24,7 +39,6 @@
   padding-left:         62px;
   background-repeat:    no-repeat;
   background-position:  6px 0px;
-  margin-bottom:        14px;
 }
 
 .differential-comment-content {

webroot/rsrc/css/application/maniphest/transaction-detail.css

@@ -2,10 +2,21 @@
  * @provides maniphest-transaction-detail-css
  */
 
+.maniphest-trnasaction-list-view {
+  padding: .5em 1.5em;
+}
+
 .maniphest-transaction-detail-container {
-  margin: 1em 1em 1.5em;
+  margin: 1em 1em 1.25em;
-  background: 0px 0px no-repeat;
+  background: 2px 2px no-repeat;
   min-height: 50px;
+  padding: 2px 2px;
+  border: 1px solid transparent;
+}
+
+.maniphest-transaction-list-view .anchor-target {
+  background-color: #ffffdd;
+  border-color: #ffff00;
 }
 
 .maniphest-transaction-detail-container .upforgrab {

webroot/rsrc/js/application/core/behavior-watch-anchor.js

@@ -0,0 +1,34 @@
+/**
+ * @provides javelin-behavior-phabricator-watch-anchor
+ * @requires javelin-behavior
+ *           javelin-stratcom
+ *           javelin-util
+ *           javelin-dom
+ */
+
+JX.behavior('phabricator-watch-anchor', function() {
+
+  var highlighted;
+
+  function highlight() {
+    highlighted && JX.DOM.alterClass(highlighted, 'anchor-target', false);
+    try {
+      highlighted = JX.$('anchor-' + window.location.hash.replace('#', ''));
+      JX.DOM.alterClass(highlighted, 'anchor-target', true);
+    } catch (ex) {
+      if (ex === JX.$.NotFound) {
+        highlighted = null;
+      } else {
+        throw ex;
+      }
+    }
+  }
+
+  JX.Stratcom.listen(
+    'hashchange',
+    null,
+    // Defer invocation so other listeners can update the document.
+    function() { JX.defer(highlight); });
+
+  JX.defer(highlight);
+});

webroot/rsrc/js/application/differential/behavior-show-all-comments.js

@@ -7,13 +7,43 @@
 
 JX.behavior('differential-show-all-comments', function(config) {
 
+  var shown = false;
+  function reveal(node) {
+    if (shown) {
+      return;
+    }
+    shown = true;
+    node = node || JX.DOM.find(
+      document.body,
+      'div',
+      'differential-all-comments-container');
+    if (node) {
+      JX.DOM.setContent(node, JX.$H(config.markup));
+    }
+  }
+
+  // Reveal the hidden comments if the user clicks "Show All Comments", or if
+  // there's an anchor in the URL, since we don't want to link to "#comment-3"
+  // and have it collapsed.
+
+  if (window.location.hash) {
+    reveal();
+  } else {
+    JX.Stratcom.listen(
+      'hashchange',
+      null,
+      function(e) {
+        if (window.location.hash.match(/comment/)) {
+          reveal();
+        }
+      });
+  }
+
   JX.Stratcom.listen(
     'click',
     'differential-show-all-comments',
     function(e) {
-      JX.DOM.setContent(
+      reveal(e.getNode('differential-all-comments-container'));
-        e.getNode('differential-all-comments-container'),
-        JX.$H(config.markup));
       e.kill();
     });