client/posts: reorder elements in mobile layout

Navigation is always right below the image, and comments are always
at the very bottom, to minimize scrolling for common actions.

client/css/post-main-view.styl

@@ -15,7 +15,7 @@
             border: 0
             outline: 0
 
-        nav.buttons
+    >.sidebar>nav.buttons, >.content nav.buttons
         margin-top: 0
         display: flex
         flex-wrap: wrap
@@ -34,19 +34,23 @@
                 font-size: 140%
             text-align: center
         @media (max-width: 800px)
-                margin-top: 2em
+            margin-top: 0.6em
+            margin-bottom: 0.6em
 
     >.content
         width: 100%
 
     .post-container
-        margin-bottom: 2em
+        margin-bottom: 0.6em
 
         .post-content
             margin: 0
 
+    .after-mobile-controls
+        width: 100%
+
 .darktheme .post-view
-    >.sidebar
+    >.sidebar, >.content
         nav.buttons
             article
                 a:not(.inactive):hover
@@ -56,6 +60,8 @@
 @media (max-width: 800px)
     .post-view
         flex-wrap: wrap
+        >.after-mobile-controls
+            order: 3
         >.sidebar
             order: 2
             min-width: 100%
@@ -113,7 +119,6 @@
         h1
             margin-bottom: 0.5em
         .thumbnail
-            background-position: 50% 30%
             width: 4em
             height: 3em
         li

client/html/post_main.tpl

@@ -29,6 +29,7 @@
                     <span class='vim-nav-hint'>Next post &gt;</span>
                 </a>
             </article>
+            <% if (ctx.canEditPosts || ctx.canDeletePosts || ctx.canFeaturePosts) { %>
             <article class='edit-post'>
                 <% if (ctx.editMode) { %>
                     <a href='<%= ctx.getPostUrl(ctx.post.id, ctx.parameters) %>'>
@@ -36,16 +37,13 @@
                         <span class='vim-nav-hint'>Back to view mode</span>
                     </a>
                 <% } else { %>
-                    <% if (ctx.canEditPosts || ctx.canDeletePosts || ctx.canFeaturePosts) { %>
                     <a href='<%= ctx.getPostEditUrl(ctx.post.id, ctx.parameters) %>'>
-                    <% } else { %>
-                        <a class='inactive'>
-                    <% } %>
                     <i class='fa fa-pencil'></i>
                     <span class='vim-nav-hint'>Edit post</span>
                     </a>
                 <% } %>
             </article>
+            <% } %>
         </nav>
 
         <div class='sidebar-container'></div>
@@ -54,13 +52,15 @@
     <div class='content'>
         <div class='post-container'></div>
 
-        <% if (ctx.canListComments) { %>
+        <div class='after-mobile-controls'>
-            <div class='comments-container'></div>
-        <% } %>
-
             <% if (ctx.canCreateComments) { %>
                 <h2>Add comment</h2>
                 <div class='comment-form-container'></div>
             <% } %>
+
+            <% if (ctx.canListComments) { %>
+                <div class='comments-container'></div>
+            <% } %>
+        </div>
     </div>
 </div>

client/js/controls/post_content_control.js

@@ -103,6 +103,30 @@ class PostContentControl {
     }
 
     _refreshSize() {
+        if (window.innerWidth <= 800) {
+            const buttons = document.querySelector(".sidebar > .buttons");
+            if (buttons) {
+                const content = document.querySelector(".content");
+                content.insertBefore(buttons, content.querySelector(".post-container + *"));
+
+                const afterControls = document.querySelector(".content > .after-mobile-controls");
+                if (afterControls) {
+                    afterControls.parentElement.parentElement.appendChild(afterControls);
+                }
+            }
+        } else {
+            const buttons = document.querySelector(".content > .buttons");
+            if (buttons) {
+                const sidebar = document.querySelector(".sidebar");
+                sidebar.insertBefore(buttons, sidebar.firstElementChild);
+            }
+
+            const afterControls = document.querySelector(".content + .after-mobile-controls");
+            if (afterControls) {
+                document.querySelector(".content").appendChild(afterControls);
+            }
+        }
+
         this._currentFitFunction();
     }