bind <f> to board flip in play, analysis, and editor

ui/analyse/src/keyboard.js

@@ -49,4 +49,5 @@ module.exports = function(ctrl) {
     m.redraw();
   }));
   k.bind(['esc'], ctrl.chessground.cancelMove);
+  k.bind('f', preventing(ctrl.flip));
 };

ui/editor/src/ctrl.js

@@ -2,6 +2,7 @@ var chessground = require('chessground');
 var partial = chessground.util.partial;
 var editor = require('./editor');
 var m = require('mithril');
+var keyboard = require('./keyboard');
 
 module.exports = function(cfg) {
 
@@ -54,11 +55,16 @@ module.exports = function(cfg) {
   }.bind(this);
 
   this.positionLooksLegit = function() {
-    var kings = {white: 0, black: 0};
+    var kings = {
+      white: 0,
+      black: 0
+    };
     var pieces = this.chessground.data.pieces;
     for (var pos in pieces) {
       if (pieces[pos] && pieces[pos].role === 'king') kings[pieces[pos].color]++;
     }
     return kings.white === 1 && kings.black === 1;
   }.bind(this);
+
+  keyboard(this);
 };

ui/editor/src/keyboard.js

@@ -0,0 +1,21 @@
+var k = Mousetrap;
+var m = require('mithril');
+
+function preventing(f) {
+  return function(e) {
+    if (e.preventDefault) {
+      e.preventDefault();
+    } else {
+      // internet explorer
+      e.returnValue = false;
+    }
+    f();
+  };
+}
+
+module.exports = function(ctrl) {
+  k.bind('f', preventing(function() {
+    ctrl.chessground.toggleOrientation();
+    m.redraw();
+  }));
+};

ui/round/src/replay/keyboard.js

@@ -45,5 +45,6 @@ module.exports = {
       ctrl.replay.jump(ctrl.data.game.moves.length);
       m.redraw();
     }));
+    k.bind('f', preventing(ctrl.flip));
   }
 };