tweak phame blog template a bit for better Facebook integration

Summary: this makes it more sensical when you hit "share" from a bookmarklet or cut and paste a link into FB, basically by having post-specific data when sharing a post.

Test Plan: looked at generated HTML on my test blog

Reviewers: epriestley

Reviewed By: epriestley

CC: chad, aran, Korvin

Differential Revision: https://secure.phabricator.com/D4266

src/applications/phame/skins/PhameBasicBlogSkin.php

@@ -9,6 +9,24 @@ abstract class PhameBasicBlogSkin extends PhameBlogSkin {
 
   private $pager;
   private $title;
+  private $description;
+  private $oGType;
+
+  protected function setOGType($og_type) {
+    $this->oGType = $og_type;
+    return $this;
+  }
+  protected function getOGType() {
+    return $this->oGType;
+  }
+
+  protected function setDescription($description) {
+    $this->description = $description;
+    return $this;
+  }
+  protected function getDescription() {
+    return $this->description;
+  }
 
   protected function setTitle($title) {
     $this->title = $title;
@@ -192,7 +210,10 @@ abstract class PhameBasicBlogSkin extends PhameBlogSkin {
 
     $matches = null;
     $path = $request->getPath();
+    // default to the blog-wide values
     $this->setTitle($this->getBlog()->getName());
+    $this->setDescription($this->getBlog()->getDescription());
+    $this->setOGType('website');
     if (preg_match('@^/post/(?P<name>.*)$@', $path, $matches)) {
       $post = id(new PhamePostQuery())
         ->setViewer($user)
@@ -201,7 +222,10 @@ abstract class PhameBasicBlogSkin extends PhameBlogSkin {
         ->executeOne();
 
       if ($post) {
+        $description = $post->getMarkupText(PhamePost::MARKUP_FIELD_SUMMARY);
         $this->setTitle($post->getTitle());
+        $this->setDescription($description);
+        $this->setOGType('article');
         $view = head($this->buildPostViews(array($post)));
         return $this->renderPostDetail($view);
       }

src/applications/phame/skins/PhameBasicTemplateBlogSkin.php

@@ -80,10 +80,12 @@ final class PhameBasicTemplateBlogSkin extends PhameBasicBlogSkin {
 
   private function getDefaultScope() {
     return array(
-      'skin'  => $this,
-      'blog'  => $this->getBlog(),
-      'uri'   => $this->getURI(''),
-      'title' => $this->getTitle(),
+      'skin'        => $this,
+      'blog'        => $this->getBlog(),
+      'uri'         => $this->getURI(''),
+      'title'       => $this->getTitle(),
+      'description' => $this->getDescription(),
+      'og_type'     => $this->getOGType(),
     );
   }