client: added features for camera

- [client] also revised date-taken section

client/html/post_readonly_sidebar.tpl

@@ -32,8 +32,21 @@
 
         <% if (ctx.post.type == "image" || ctx.post.type == "video" ) { %>
             <section class='date-taken'>
-                <i class='fa fa-clock-o'></i>Taken on
-                <%= ctx.makeUserFriendlyTime(ctx.post.dateTaken) %>
+                <i class='fa fa-clock-o'></i><!--
+                --><% if (ctx.post.dateTaken) { %><!--
+                    --><%= ctx.makeUserFriendlyTime(ctx.post.dateTaken) %><!--
+                --><% } else { %><!--
+                    -->Unknown date
+                <% } %>
+            </section>
+
+            <section class='camera'>
+                <i class='fa fa-camera'></i><!--
+                --><% if (ctx.post.camera) { %><!--
+                    --><%= ctx.post.camera %><!--
+                --><% } else { %><!--
+                    -->Unknown camera
+                <% } %>
             </section>
         <% } %>
 

client/js/models/post.js

@@ -154,6 +154,10 @@ class Post extends events.EventTarget {
         return this._dateTaken;
     }
 
+    get camera() {
+        return this._camera;
+    }
+
     set flags(value) {
         this._flags = value;
     }
@@ -497,6 +501,7 @@ class Post extends events.EventTarget {
             _ownFavorite: response.ownFavorite,
             _hasCustomThumbnail: response.hasCustomThumbnail,
             _dateTaken: response.dateTaken,
+            _camera: response.camera,
         });
 
         for (let obj of [this, this._orig]) {

client/js/util/misc.js

@@ -97,10 +97,6 @@ function formatRelativeTime(timeString) {
 }
 
 function formatUserFriendlyTime(timeString) {
-    if (!timeString) {
-        return "an unknown date";
-    }
-
     return format(Date.parse(timeString), "iii, LLLL dd yyyy 'at' HH:mm:ss");
 }