diff --git a/src/applications/diffusion/controller/DiffusionChangeController.php b/src/applications/diffusion/controller/DiffusionChangeController.php
--- a/src/applications/diffusion/controller/DiffusionChangeController.php
+++ b/src/applications/diffusion/controller/DiffusionChangeController.php
@@ -6,9 +6,14 @@
     return true;
   }
 
-  protected function processDiffusionRequest(AphrontRequest $request) {
-    $drequest = $this->diffusionRequest;
-    $viewer = $request->getUser();
+  public function handleRequest(AphrontRequest $request) {
+    $response = $this->loadDiffusionContext();
+    if ($response) {
+      return $response;
+    }
+
+    $viewer = $this->getViewer();
+    $drequest = $this->getDiffusionRequest();
 
     $content = array();
 
@@ -89,15 +94,18 @@
       ->setHeader($header)
       ->addPropertyList($properties);
 
-    return $this->buildApplicationPage(
-      array(
-        $crumbs,
-        $object_box,
-        $content,
-      ),
-      array(
-        'title' => pht('Change'),
-      ));
+    return $this->newPage()
+      ->setTitle(
+        array(
+          basename($drequest->getPath()),
+          $repository->getDisplayName(),
+        ))
+      ->setCrumbs($crumbs)
+      ->appendChild(
+        array(
+          $object_box,
+          $content,
+        ));
   }
 
   private function buildActionView(DiffusionRequest $drequest) {
diff --git a/src/applications/diffusion/controller/DiffusionCommitBranchesController.php b/src/applications/diffusion/controller/DiffusionCommitBranchesController.php
--- a/src/applications/diffusion/controller/DiffusionCommitBranchesController.php
+++ b/src/applications/diffusion/controller/DiffusionCommitBranchesController.php
@@ -6,7 +6,12 @@
     return true;
   }
 
-  protected function processDiffusionRequest(AphrontRequest $request) {
+  public function handleRequest(AphrontRequest $request) {
+    $response = $this->loadDiffusionContext();
+    if ($response) {
+      return $response;
+    }
+
     $drequest = $this->getDiffusionRequest();
     $repository = $drequest->getRepository();
 
diff --git a/src/applications/diffusion/controller/DiffusionCommitEditController.php b/src/applications/diffusion/controller/DiffusionCommitEditController.php
--- a/src/applications/diffusion/controller/DiffusionCommitEditController.php
+++ b/src/applications/diffusion/controller/DiffusionCommitEditController.php
@@ -2,18 +2,24 @@
 
 final class DiffusionCommitEditController extends DiffusionController {
 
-  protected function processDiffusionRequest(AphrontRequest $request) {
-    $user       = $request->getUser();
-    $drequest   = $this->getDiffusionRequest();
+  public function handleRequest(AphrontRequest $request) {
+    $response = $this->loadDiffusionContext();
+    if ($response) {
+      return $response;
+    }
+
+    $viewer = $this->getViewer();
+    $drequest = $this->getDiffusionRequest();
     $repository = $drequest->getRepository();
-    $commit     = $drequest->loadCommit();
-    $data = $commit->loadCommitData();
-    $page_title = pht('Edit Diffusion Commit');
+    $commit = $drequest->loadCommit();
 
     if (!$commit) {
       return new Aphront404Response();
     }
 
+    $data = $commit->loadCommitData();
+    $page_title = pht('Edit Diffusion Commit');
+
     $commit_phid = $commit->getPHID();
     $edge_type = PhabricatorProjectObjectHasProjectEdgeType::EDGECONST;
     $current_proj_phids = PhabricatorEdgeQuery::loadDestinationPHIDs(
@@ -27,18 +33,21 @@
         ->setTransactionType(PhabricatorTransactions::TYPE_EDGE)
         ->setMetadataValue('edge:type', $edge_type)
         ->setNewValue(array('=' => array_fuse($proj_phids)));
+
       $editor = id(new PhabricatorAuditEditor())
-        ->setActor($user)
+        ->setActor($viewer)
         ->setContinueOnNoEffect(true)
         ->setContentSourceFromRequest($request);
-      $xactions = $editor->applyTransactions($commit, $xactions);
+
+      $editor->applyTransactions($commit, $xactions);
+
       return id(new AphrontRedirectResponse())
         ->setURI($commit->getURI());
     }
 
     $tokenizer_id = celerity_generate_unique_node_id();
     $form = id(new AphrontFormView())
-      ->setUser($user)
+      ->setUser($viewer)
       ->setAction($request->getRequestURI()->getPath())
       ->appendControl(
         id(new AphrontFormTokenizerControl())
@@ -87,33 +96,25 @@
           ->setValue(array($desc, " \xC2\xB7 ", $doc_link)));
     }
 
+    $form->appendControl(
+      id(new AphrontFormSubmitControl())
+        ->setValue(pht('Save'))
+        ->addCancelButton($commit->getURI()));
 
-    Javelin::initBehavior('project-create', array(
-      'tokenizerID' => $tokenizer_id,
-    ));
-
-    $submit = id(new AphrontFormSubmitControl())
-      ->setValue(pht('Save'))
-      ->addCancelButton($commit->getURI());
-      $form->appendChild($submit);
-
-    $crumbs = $this->buildCrumbs(array(
-      'commit' => true,
-    ));
+    $crumbs = $this->buildCrumbs(
+      array(
+        'commit' => true,
+      ));
     $crumbs->addTextCrumb(pht('Edit'));
 
     $form_box = id(new PHUIObjectBoxView())
       ->setHeaderText($page_title)
       ->setForm($form);
 
-    return $this->buildApplicationPage(
-      array(
-        $crumbs,
-        $form_box,
-      ),
-      array(
-        'title' => $page_title,
-      ));
+    return $this->newPage()
+      ->setTitle($page_title)
+      ->setCrumbs($crumbs)
+      ->appendChild($form_box);
   }
 
 }
diff --git a/src/applications/diffusion/controller/DiffusionCommitTagsController.php b/src/applications/diffusion/controller/DiffusionCommitTagsController.php
--- a/src/applications/diffusion/controller/DiffusionCommitTagsController.php
+++ b/src/applications/diffusion/controller/DiffusionCommitTagsController.php
@@ -6,7 +6,12 @@
     return true;
   }
 
-  protected function processDiffusionRequest(AphrontRequest $request) {
+  public function handleRequest(AphrontRequest $request) {
+    $response = $this->loadDiffusionContext();
+    if ($response) {
+      return $response;
+    }
+
     $drequest = $this->getDiffusionRequest();
     $repository = $drequest->getRepository();
 
diff --git a/src/applications/diffusion/controller/DiffusionHistoryController.php b/src/applications/diffusion/controller/DiffusionHistoryController.php
--- a/src/applications/diffusion/controller/DiffusionHistoryController.php
+++ b/src/applications/diffusion/controller/DiffusionHistoryController.php
@@ -6,19 +6,24 @@
     return true;
   }
 
-  protected function processDiffusionRequest(AphrontRequest $request) {
-    $drequest = $this->diffusionRequest;
-    $viewer = $request->getUser();
+  public function handleRequest(AphrontRequest $request) {
+    $response = $this->loadDiffusionContext();
+    if ($response) {
+      return $response;
+    }
+
+    $viewer = $this->getViewer();
+    $drequest = $this->getDiffusionRequest();
     $repository = $drequest->getRepository();
 
-    $page_size = $request->getInt('pagesize', 100);
-    $offset = $request->getInt('offset', 0);
+    $pager = id(new PHUIPagerView())
+      ->readFromRequest($request);
 
     $params = array(
       'commit' => $drequest->getCommit(),
       'path' => $drequest->getPath(),
-      'offset' => $offset,
-      'limit' => $page_size + 1,
+      'offset' => $pager->getOffset(),
+      'limit' => $pager->getPageSize() + 1,
     );
 
     if (!$request->getBool('copies')) {
@@ -32,13 +37,8 @@
     $history = DiffusionPathChange::newFromConduit(
       $history_results['pathChanges']);
 
-    $pager = new PHUIPagerView();
-    $pager->setPageSize($page_size);
-    $pager->setOffset($offset);
     $history = $pager->sliceResults($history);
 
-    $pager->setURI($request->getRequestURI(), 'offset');
-
     $show_graph = !strlen($drequest->getPath());
     $content = array();
 
@@ -51,7 +51,7 @@
 
     if ($show_graph) {
       $history_table->setParents($history_results['parents']);
-      $history_table->setIsHead($offset == 0);
+      $history_table->setIsHead(!$pager->getOffset());
     }
 
     $history_panel = new PHUIObjectBoxView();
@@ -79,23 +79,21 @@
         'view'   => 'history',
       ));
 
-    $pager = id(new PHUIBoxView())
-      ->addClass('ml')
-      ->appendChild($pager);
+    $pager_box = $this->renderTablePagerBox($pager);
 
-    return $this->buildApplicationPage(
-      array(
-        $crumbs,
-        $object_box,
-        $content,
-        $pager,
-      ),
-      array(
-        'title' => array(
+    return $this->newPage()
+      ->setTitle(
+        array(
           pht('History'),
-          $drequest->getRepository()->getDisplayName(),
-        ),
-      ));
+          $repository->getDisplayName(),
+        ))
+      ->setCrumbs($crumbs)
+      ->appendChild(
+        array(
+          $object_box,
+          $content,
+          $pager_box,
+        ));
   }
 
   private function buildActionView(DiffusionRequest $drequest) {
diff --git a/src/applications/diffusion/controller/DiffusionMirrorDeleteController.php b/src/applications/diffusion/controller/DiffusionMirrorDeleteController.php
--- a/src/applications/diffusion/controller/DiffusionMirrorDeleteController.php
+++ b/src/applications/diffusion/controller/DiffusionMirrorDeleteController.php
@@ -3,9 +3,14 @@
 final class DiffusionMirrorDeleteController
   extends DiffusionController {
 
-  protected function processDiffusionRequest(AphrontRequest $request) {
-    $viewer = $request->getUser();
-    $drequest = $this->diffusionRequest;
+  public function handleRequest(AphrontRequest $request) {
+    $response = $this->loadDiffusionContext();
+    if ($response) {
+      return $response;
+    }
+
+    $viewer = $this->getViewer();
+    $drequest = $this->getDiffusionRequest();
     $repository = $drequest->getRepository();
 
     $mirror = id(new PhabricatorRepositoryMirrorQuery())
diff --git a/src/applications/diffusion/controller/DiffusionMirrorEditController.php b/src/applications/diffusion/controller/DiffusionMirrorEditController.php
--- a/src/applications/diffusion/controller/DiffusionMirrorEditController.php
+++ b/src/applications/diffusion/controller/DiffusionMirrorEditController.php
@@ -3,9 +3,14 @@
 final class DiffusionMirrorEditController
   extends DiffusionController {
 
-  protected function processDiffusionRequest(AphrontRequest $request) {
-    $viewer = $request->getUser();
-    $drequest = $this->diffusionRequest;
+  public function handleRequest(AphrontRequest $request) {
+    $response = $this->loadDiffusionContext();
+    if ($response) {
+      return $response;
+    }
+
+    $viewer = $this->getViewer();
+    $drequest = $this->getDiffusionRequest();
     $repository = $drequest->getRepository();
 
     PhabricatorPolicyFilter::requireCapability(
diff --git a/src/applications/diffusion/controller/DiffusionPushEventViewController.php b/src/applications/diffusion/controller/DiffusionPushEventViewController.php
--- a/src/applications/diffusion/controller/DiffusionPushEventViewController.php
+++ b/src/applications/diffusion/controller/DiffusionPushEventViewController.php
@@ -7,8 +7,8 @@
     return true;
   }
 
-  protected function processDiffusionRequest(AphrontRequest $request) {
-    $viewer = $request->getUser();
+  public function handleRequest(AphrontRequest $request) {
+    $viewer = $this->getViewer();
 
     $event = id(new PhabricatorRepositoryPushEventQuery())
       ->setViewer($viewer)
@@ -57,16 +57,15 @@
       ->setHeaderText(pht('All Pushed Updates'))
       ->setTable($updates_table);
 
-    return $this->buildApplicationPage(
-      array(
-        $crumbs,
-        $detail_box,
-        $commits_box,
-        $update_box,
-      ),
-      array(
-        'title' => $title,
-      ));
+    return $this->newPage()
+      ->setTitle($title)
+      ->setCrumbs($crumbs)
+      ->appendChild(
+        array(
+          $detail_box,
+          $commits_box,
+          $update_box,
+        ));
   }
 
   private function buildPropertyList(PhabricatorRepositoryPushEvent $event) {
diff --git a/src/applications/diffusion/controller/DiffusionPushLogListController.php b/src/applications/diffusion/controller/DiffusionPushLogListController.php
--- a/src/applications/diffusion/controller/DiffusionPushLogListController.php
+++ b/src/applications/diffusion/controller/DiffusionPushLogListController.php
@@ -6,29 +6,10 @@
     return true;
   }
 
-  protected function processDiffusionRequest(AphrontRequest $request) {
-    $request = $this->getRequest();
-    $controller = id(new PhabricatorApplicationSearchController())
-      ->setQueryKey($request->getURIData('queryKey'))
-      ->setSearchEngine(new PhabricatorRepositoryPushLogSearchEngine())
-      ->setNavigation($this->buildSideNavView());
-
-    return $this->delegateToController($controller);
-  }
-
-  public function buildSideNavView($for_app = false) {
-    $viewer = $this->getRequest()->getUser();
-
-    $nav = new AphrontSideNavFilterView();
-    $nav->setBaseURI(new PhutilURI($this->getApplicationURI()));
-
-    id(new PhabricatorRepositoryPushLogSearchEngine())
-      ->setViewer($viewer)
-      ->addNavigationItems($nav->getMenu());
-
-    $nav->selectFilter(null);
-
-    return $nav;
+  public function handleRequest(AphrontRequest $request) {
+    return id(new PhabricatorRepositoryPushLogSearchEngine())
+      ->setController($this)
+      ->buildResponse();
   }
 
 }
diff --git a/src/applications/diffusion/controller/DiffusionRefTableController.php b/src/applications/diffusion/controller/DiffusionRefTableController.php
--- a/src/applications/diffusion/controller/DiffusionRefTableController.php
+++ b/src/applications/diffusion/controller/DiffusionRefTableController.php
@@ -6,9 +6,13 @@
     return true;
   }
 
-  protected function processDiffusionRequest(AphrontRequest $request) {
-    $viewer = $this->getViewer();
+  public function handleRequest(AphrontRequest $request) {
+    $response = $this->loadDiffusionContext();
+    if ($response) {
+      return $response;
+    }
 
+    $viewer = $this->getViewer();
     $drequest = $this->getDiffusionRequest();
     $repository = $drequest->getRepository();
 
@@ -132,18 +136,15 @@
     $crumbs = $this->buildCrumbs(array());
     $crumbs->addTextCrumb(pht('Refs'));
 
-    return $this->buildApplicationPage(
-      array(
-        $crumbs,
-        $content,
-      ),
-      array(
-        'title' => array(
-          pht('Refs'),
-          $repository->getMonogram(),
+    return $this->newPage()
+      ->setTitle(
+        array(
           $ref_name,
-        ),
-      ));
+          pht('Ref'),
+          $repository->getDisplayName(),
+        ))
+      ->setCrumbs($crumbs)
+      ->appendChild($content);
   }
 
 }
diff --git a/src/applications/diffusion/controller/DiffusionRepositoryListController.php b/src/applications/diffusion/controller/DiffusionRepositoryListController.php
--- a/src/applications/diffusion/controller/DiffusionRepositoryListController.php
+++ b/src/applications/diffusion/controller/DiffusionRepositoryListController.php
@@ -6,28 +6,10 @@
     return true;
   }
 
-  protected function processDiffusionRequest(AphrontRequest $request) {
-    $controller = id(new PhabricatorApplicationSearchController())
-      ->setQueryKey($request->getURIData('queryKey'))
-      ->setSearchEngine(new PhabricatorRepositorySearchEngine())
-      ->setNavigation($this->buildSideNavView());
-
-    return $this->delegateToController($controller);
-  }
-
-  public function buildSideNavView($for_app = false) {
-    $viewer = $this->getRequest()->getUser();
-
-    $nav = new AphrontSideNavFilterView();
-    $nav->setBaseURI(new PhutilURI($this->getApplicationURI()));
-
-    id(new PhabricatorRepositorySearchEngine())
-      ->setViewer($viewer)
-      ->addNavigationItems($nav->getMenu());
-
-    $nav->selectFilter(null);
-
-    return $nav;
+  public function handleRequest(AphrontRequest $request) {
+    return id(new PhabricatorRepositorySearchEngine())
+      ->setController($this)
+      ->buildResponse();
   }
 
   protected function buildApplicationCrumbs() {
diff --git a/src/applications/diffusion/controller/DiffusionRepositoryTestAutomationController.php b/src/applications/diffusion/controller/DiffusionRepositoryTestAutomationController.php
--- a/src/applications/diffusion/controller/DiffusionRepositoryTestAutomationController.php
+++ b/src/applications/diffusion/controller/DiffusionRepositoryTestAutomationController.php
@@ -3,9 +3,14 @@
 final class DiffusionRepositoryTestAutomationController
   extends DiffusionRepositoryEditController {
 
-  protected function processDiffusionRequest(AphrontRequest $request) {
+  public function handleRequest(AphrontRequest $request) {
+    $response = $this->loadDiffusionContext();
+    if ($response) {
+      return $response;
+    }
+
     $viewer = $this->getViewer();
-    $drequest = $this->diffusionRequest;
+    $drequest = $this->getDiffusionRequest();
     $repository = $drequest->getRepository();
 
     $repository = id(new PhabricatorRepositoryQuery())