Restore old Home mobile menu behavior, hide crumbs

Summary:
Ref T12174.

  - Go back to the old mobile behavior (full-screen menu by default, click to see content).
  - Hide crumbs from all Home content UIs. I left them on the edit/configure UIs since they feel a little less out-of-place there and some have multiple levels.

Test Plan:
Viewed Home on mobile, viewed `/home/` on mobile.

Also, saw no crumbs.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T12174

Differential Revision: https://secure.phabricator.com/D17290

src/applications/home/application/PhabricatorHomeApplication.php

@@ -23,7 +23,12 @@ final class PhabricatorHomeApplication extends PhabricatorApplication {
   public function getRoutes() {
     return array(
       '/' => 'PhabricatorHomeMenuItemController',
-      '/home/' => array(
+
+      // NOTE: If you visit "/" on mobile, you get just the menu. If you visit
+      // "/home/" on mobile, you get the content. From the normal desktop
+      // UI, there's no difference between these pages.
+
+      '/(?P<content>home)/' => array(
         '' => 'PhabricatorHomeMenuItemController',
         'menu/' => $this->getProfileMenuRouting(
           'PhabricatorHomeMenuItemController'),

src/applications/home/controller/PhabricatorHomeMenuItemController.php

@@ -14,6 +14,11 @@ final class PhabricatorHomeMenuItemController
   public function handleRequest(AphrontRequest $request) {
     $viewer = $this->getViewer();
 
+    // Test if we should show mobile users the menu or the page content:
+    // if you visit "/", you just get the menu. If you visit "/home/", you
+    // get the content.
+    $is_content = $request->getURIData('content');
+
     $application = 'PhabricatorHomeApplication';
     $home_app = id(new PhabricatorApplicationQuery())
       ->setViewer($viewer)
@@ -24,7 +29,12 @@ final class PhabricatorHomeMenuItemController
     $engine = id(new PhabricatorHomeProfileMenuEngine())
       ->setProfileObject($home_app)
       ->setCustomPHID($viewer->getPHID())
-      ->setController($this);
+      ->setController($this)
+      ->setShowContentCrumbs(false);
+
+    if (!$is_content) {
+      $engine->addContentPageClass('phabricator-home');
+    }
 
     return $engine->buildResponse();
   }

src/applications/search/engine/PhabricatorProfileMenuEngine.php

@@ -11,6 +11,8 @@ abstract class PhabricatorProfileMenuEngine extends Phobject {
   private $navigation;
   private $showNavigation = true;
   private $editMode;
+  private $pageClasses = array();
+  private $showContentCrumbs = true;
 
   const ITEM_CUSTOM_DIVIDER = 'engine.divider';
   const ITEM_MANAGE = 'item.configure';
@@ -90,6 +92,20 @@ abstract class PhabricatorProfileMenuEngine extends Phobject {
     return $this->showNavigation;
   }
 
+  public function addContentPageClass($class) {
+    $this->pageClasses[] = $class;
+    return $this;
+  }
+
+  public function setShowContentCrumbs($show_content_crumbs) {
+    $this->showContentCrumbs = $show_content_crumbs;
+    return $this;
+  }
+
+  public function getShowContentCrumbs() {
+    return $this->showContentCrumbs;
+  }
+
   abstract public function getItemURI($path);
   abstract protected function isMenuEngineConfigurable();
 
@@ -118,14 +134,13 @@ abstract class PhabricatorProfileMenuEngine extends Phobject {
       $item_action = 'view';
     }
 
+    $is_view = ($item_action == 'view');
+
     // If the engine is not configurable, don't respond to any of the editing
     // or configuration routes.
     if (!$this->isMenuEngineConfigurable()) {
-      switch ($item_action) {
-        case 'view':
-          break;
-        default:
-          return new Aphront404Response();
+      if (!$is_view) {
+        return new Aphront404Response();
       }
     }
 
@@ -159,7 +174,7 @@ abstract class PhabricatorProfileMenuEngine extends Phobject {
     }
 
     if (!$selected_item) {
-      if ($item_action == 'view') {
+      if ($is_view) {
         $selected_item = $this->getDefaultItem();
       }
     }
@@ -190,7 +205,7 @@ abstract class PhabricatorProfileMenuEngine extends Phobject {
 
     $crumbs = $controller->buildApplicationCrumbsForEditEngine();
 
-    if ($item_action != 'view') {
+    if (!$is_view) {
       $navigation->selectFilter(self::ITEM_MANAGE);
 
       if ($selected_item) {
@@ -298,13 +313,22 @@ abstract class PhabricatorProfileMenuEngine extends Phobject {
 
     $page = $controller->newPage()
       ->setTitle($page_title)
-      ->setCrumbs($crumbs)
       ->appendChild($content);
 
+    if (!$is_view || $this->getShowContentCrumbs()) {
+      $page->setCrumbs($crumbs);
+    }
+
     if ($this->getShowNavigation()) {
       $page->setNavigation($navigation);
     }
 
+    if ($is_view) {
+      foreach ($this->pageClasses as $class) {
+        $page->addClass($class);
+      }
+    }
+
     return $page;
   }