Add paste samples to list view.

Summary:
This adds a "body" field to `PhabricatorObjectItemView` which lets you optionally
add more information to the list view. It then uses this new field to show
samples of pastes in the paste list view.

Test Plan:
{F27147}

{F27148}

Reviewers: epriestley

CC: aran, Korvin

Differential Revision: https://secure.phabricator.com/D4188

src/applications/paste/controller/PhabricatorPasteController.php

@@ -39,4 +39,31 @@ abstract class PhabricatorPasteController extends PhabricatorController {
     return $crumbs;
   }
 
+  public function buildSourceCodeView(
+    PhabricatorPaste $paste,
+    PhabricatorFile $file,
+    $max_lines = null) {
+
+    $language = $paste->getLanguage();
+    $source = $file->loadFileData();
+
+    if (empty($language)) {
+      $source = PhabricatorSyntaxHighlighter::highlightWithFilename(
+        $paste->getTitle(),
+        $source);
+    } else {
+      $source = PhabricatorSyntaxHighlighter::highlightWithLanguage(
+        $language,
+        $source);
+    }
+
+    $lines = explode("\n", $source);
+
+    if ($max_lines) {
+      $lines = array_slice($lines, 0, $max_lines);
+    }
+
+    return id(new PhabricatorSourceCodeView())
+      ->setLines($lines);
+  }
 }

src/applications/paste/controller/PhabricatorPasteListController.php

@@ -76,17 +76,32 @@ final class PhabricatorPasteListController extends PhabricatorPasteController {
 
     $this->loadHandles(mpull($pastes, 'getAuthorPHID'));
 
+    $file_phids = mpull($pastes, 'getFilePHID');
+    $files = array();
+    if ($file_phids) {
+      $files = id(new PhabricatorFile())->loadAllWhere(
+        "phid IN (%Ls)",
+        $file_phids);
+    }
+    $files_map = mpull($files, null, 'getPHID');
+
     $list = new PhabricatorObjectItemListView();
     $list->setViewer($user);
     foreach ($pastes as $paste) {
       $created = phabricator_date($paste->getDateCreated(), $user);
       $author = $this->getHandle($paste->getAuthorPHID())->renderLink();
 
+      $file_phid = $paste->getFilePHID();
+      $file = idx($files_map, $file_phid);
+
+      $source_code = $this->buildSourceCodeView($paste, $file, 5)->render();
+
       $item = id(new PhabricatorObjectItemView())
         ->setHeader($paste->getFullName())
         ->setHref('/P'.$paste->getID())
         ->setObject($paste)
-        ->addAttribute(pht('Created %s by %s', $created, $author));
+        ->addAttribute(pht('Created %s by %s', $created, $author))
+        ->appendChild($source_code);
       $list->addItem($item);
     }
 

src/applications/paste/controller/PhabricatorPasteViewController.php

@@ -152,27 +152,4 @@ final class PhabricatorPasteViewController extends PhabricatorPasteController {
     return $properties;
   }
 
-  private function buildSourceCodeView(
-    PhabricatorPaste $paste,
-    PhabricatorFile $file) {
-
-    $language = $paste->getLanguage();
-    $source = $file->loadFileData();
-
-    if (empty($language)) {
-      $source = PhabricatorSyntaxHighlighter::highlightWithFilename(
-        $paste->getTitle(),
-        $source);
-    } else {
-      $source = PhabricatorSyntaxHighlighter::highlightWithLanguage(
-        $language,
-        $source);
-    }
-
-    $lines = explode("\n", $source);
-
-    return id(new PhabricatorSourceCodeView())
-      ->setLines($lines);
-  }
-
 }

src/view/layout/PhabricatorObjectItemView.php

@@ -144,7 +144,7 @@ final class PhabricatorObjectItemView extends AphrontView {
       array(
         'class' => implode(' ', $classes),
       ),
-      $icons.$header.$attrs);
+      $icons.$header.$attrs.$this->renderChildren());
   }
 
 }