link game setup FEN to board editor

app/views/setup/fenInput.scala.html

@@ -1,6 +1,6 @@
 @(field: play.api.data.Field, strict: Boolean)(implicit ctx: Context)
 
-<div class="fen_position optional_config" data-validate-url="@routes.Setup.validateFen@strict.fold("?strict=1", "")">
+<div class="fen_position optional_config" data-validate-url="@routes.Setup.validateFen@{strict.??("?strict=1")}">
   @base.input(field, placeholder=trans.pasteTheFenStringHere.str().some)
-  <div class="preview"></div>
+  <a class="board_editor" href="@routes.Editor.index(~field.value)"><span class="preview"></span>@trans.boardEditor()</a>
 </div>

public/javascripts/big.js

@@ -1921,15 +1921,19 @@ var storage = {
 
       var validateFen = _.debounce(function() {
         $fenInput.removeClass("success failure");
-        if ($fenInput.val()) {
+        var fen = $fenInput.val();
+        if (fen) {
           $.ajax({
             url: $fenInput.parent().data('validate-url'),
             data: {
-              fen: $fenInput.val()
+              fen: fen
             },
             success: function(data) {
               $fenInput.addClass("success");
               $fenPosition.find('.preview').html(data);
+              $fenPosition.find('a.board_editor').each(function() {
+                $(this).attr('href', $(this).attr('href').replace(/editor\/.+$/, "editor/" + fen));
+              });
               $('body').trigger('lichess.content_loaded');
               $.centerOverboard();
             },

public/stylesheets/common.css

@@ -1389,7 +1389,7 @@ div.game_config input#fen.failure {
   color: #aa0000;
 }
 div.game_config .fen_position .mini_board {
-  margin: 10px auto;
+  margin: 10px auto 0 auto;
 }
 div.game_config .time_choice, div.game_config .increment_choice, div.game_config .elo_range_config {
   padding-bottom: 1em;

todo

@@ -60,7 +60,6 @@ many tv ideas (answer)
   http://i.imgur.com/ZSi90k0.jpg
 separate games in spectator chat
 real board editor save
-edit board from play fen
 clickable mistakes list in analysis
 FEN/editor castle/enpassant https://github.com/ornicar/lila/issues/42 white/black to play
 stupid team forum slug http://ru.lichess.org/forum/team-4epa250h