refactor(opengraph): move OpenGraph related settings to .Params.opengraph

exampleSite/config.toml

@@ -4,17 +4,19 @@ theme = "hugo-theme-stack"
 paginate = 5
 
 [params]
-    twitter = "0xJimmy"
     postSection = "post"
     emoji = "🍥"
     avatar = "img/avatar.jpg"
-    logo = "/avatar.jpg"
     subtitle = "和世界分享刚编的破事"
     postLicense = "Licenced under CC BY-NC-SA 4.0"
     [params.widgets]
         enabled = ['archive', 'tag-cloud']
         [params.widgets.tagCloud]
             limit = 10
+    [params.opengraph]
+        defaultImage = "img/logo.png"
+        [params.opengraph.twitter]
+            site = "0xJimmy"
             
 [menu]
     [[menu.main]]

layouts/partials/head/opengraph.html

@@ -10,7 +10,7 @@
   	{{- end -}}
 '>
 
-{{ with .Site.Params.twitter }}
+{{ with .Site.Params.opengraph.twitter.site }}
 <meta name="twitter:site" content="{{ . }}">
 {{ end }}
 <meta name="twitter:title" content="{{ partial "data/title" . }}">
@@ -40,12 +40,13 @@
 	{{- end -}}
 {{- end -}}
 
-<meta name="twitter:card" content="summary_large_image">
-
 {{- if .Params.image -}}
 	{{ $image := partial "helper/image" . }}
+	<meta name="twitter:card" content="summary_large_image">
+	<meta property='og:image' content='{{ absURL $image.RelPermalink }}' />
+	<meta name="twitter:image" content='{{ absURL $image.RelPermalink }}' />
+{{- else if .Site.Params.opengraph.defaultImage -}}
+	{{ $image := resources.Get .Site.Params.opengraph.defaultImage }}
 	<meta property='og:image' content='{{ absURL $image.RelPermalink }}' />
 	<meta name="twitter:image" content='{{ absURL $image.RelPermalink }}' />
-{{- else -}}
-	<meta property='og:image' content='{{ absURL .Site.Params.logo }}' />
 {{- end -}}