Probably added app menu for mobile

Summary:
Messy POC. I hope I did this one right :P

Refs T2014

Test Plan: Switched browser forcefully into `device-phone`, saw filters in the menu top right. Browsed around Differential in desktop mode, nothing was broken, I think.

Reviewers: epriestley, chad, btrahan

CC: aran, Korvin

Maniphest Tasks: T2014

Differential Revision: https://secure.phabricator.com/D5693

src/applications/differential/controller/DifferentialController.php

@@ -10,8 +10,6 @@ abstract class DifferentialController extends PhabricatorController {
 
     require_celerity_resource('differential-core-view-css');
 
-    $viewer_is_anonymous = !$this->getRequest()->getUser()->isLoggedIn();
-
     $page = $this->buildStandardPageView();
     $page->setApplicationName(pht('Differential'));
     $page->setBaseURI('/differential/');
@@ -27,7 +25,6 @@ abstract class DifferentialController extends PhabricatorController {
   public function buildApplicationCrumbs() {
     $crumbs = parent::buildApplicationCrumbs();
 
-    $create_uri = new PhutilURI('/differential/diff/create/');
     $crumbs->addAction(
       id(new PhabricatorMenuItemView())
         ->setHref($this->getApplicationURI('/diff/create/'))
@@ -37,4 +34,65 @@ abstract class DifferentialController extends PhabricatorController {
     return $crumbs;
   }
 
+  public function buildSideNav($filter = null,
+    $for_app = false, $username = null) {
+
+    $viewer_is_anonymous = !$this->getRequest()->getUser()->isLoggedIn();
+
+    $uri = id(new PhutilURI('/differential/filter/'))
+      ->setQueryParams($this->getRequest()->getRequestURI()->getQueryParams());
+    $filters = $this->getFilters();
+    $filter = $this->selectFilter($filters, $filter, $viewer_is_anonymous);
+
+    $side_nav = new AphrontSideNavFilterView();
+    $side_nav->setBaseURI($uri);
+    foreach ($filters as $filter) {
+      list($filter_name, $display_name) = $filter;
+      if ($filter_name) {
+        $side_nav->addFilter($filter_name.'/'.$username, $display_name);
+      } else {
+        $side_nav->addLabel($display_name);
+      }
+    }
+
+    return $side_nav;
+  }
+
+  protected function getFilters() {
+    return array(
+      array(null, pht('User Revisions')),
+      array('active', pht('Active')),
+      array('revisions', pht('Revisions')),
+      array('reviews', pht('Reviews')),
+      array('subscribed', pht('Subscribed')),
+      array('drafts', pht('Draft Reviews')),
+      array(null, pht('All Revisions')),
+      array('all', pht('All')),
+    );
+  }
+
+  protected function selectFilter(
+    array $filters,
+    $requested_filter,
+    $viewer_is_anonymous) {
+
+    $default_filter = ($viewer_is_anonymous ? 'all' : 'active');
+
+    // If the user requested a filter, make sure it actually exists.
+    if ($requested_filter) {
+      foreach ($filters as $filter) {
+        if ($filter[0] === $requested_filter) {
+          return $requested_filter;
+        }
+      }
+    }
+
+    // If not, return the default filter.
+    return $default_filter;
+  }
+
+  public function buildApplicationMenu() {
+    return $this->buildSideNav(null, true)->getMenu();
+  }
+
 }

src/applications/differential/controller/DifferentialRevisionListController.php

@@ -17,7 +17,6 @@ final class DifferentialRevisionListController extends DifferentialController {
   public function processRequest() {
     $request = $this->getRequest();
     $user = $request->getUser();
-    $viewer_is_anonymous = !$user->isLoggedIn();
 
     $params = array_filter(
       array(
@@ -26,12 +25,9 @@ final class DifferentialRevisionListController extends DifferentialController {
       ));
     $params['participants'] = $request->getArr('participants');
 
-    $default_filter = ($viewer_is_anonymous ? 'all' : 'active');
     $filters = $this->getFilters();
-    $this->filter = $this->selectFilter(
+    $this->filter = $this->selectFilter($filters,
-      $filters,
+      $this->filter, !$user->isLoggedIn());
-      $this->filter,
-      $default_filter);
 
     // Redirect from search to canonical URL.
     $phid_arr = $request->getArr('view_users');
@@ -80,16 +76,7 @@ final class DifferentialRevisionListController extends DifferentialController {
       'order' => 'modified',
     );
 
-    $side_nav = new AphrontSideNavFilterView();
+    $side_nav = $this->buildSideNav($this->filter, false, $username);
-    $side_nav->setBaseURI(id(clone $uri)->setPath('/differential/filter/'));
-    foreach ($filters as $filter) {
-      list($filter_name, $display_name) = $filter;
-      if ($filter_name) {
-        $side_nav->addFilter($filter_name.'/'.$username, $display_name);
-      } else {
-        $side_nav->addLabel($display_name);
-      }
-    }
     $side_nav->selectFilter($this->filter.'/'.$username, null);
 
     $panels = array();
@@ -202,37 +189,6 @@ final class DifferentialRevisionListController extends DifferentialController {
       ));
   }
 
-  private function getFilters() {
-    return array(
-      array(null, pht('User Revisions')),
-      array('active', pht('Active')),
-      array('revisions', pht('Revisions')),
-      array('reviews', pht('Reviews')),
-      array('subscribed', pht('Subscribed')),
-      array('drafts', pht('Draft Reviews')),
-      array(null, pht('All Revisions')),
-      array('all', pht('All')),
-    );
-  }
-
-  private function selectFilter(
-    array $filters,
-    $requested_filter,
-    $default_filter) {
-
-    // If the user requested a filter, make sure it actually exists.
-    if ($requested_filter) {
-      foreach ($filters as $filter) {
-        if ($filter[0] === $requested_filter) {
-          return $requested_filter;
-        }
-      }
-    }
-
-    // If not, return the default filter.
-    return $default_filter;
-  }
-
   private function getFilterRequiresUser($filter) {
     static $requires = array(
       'active'      => true,