FEATURE: add 'enable_emoji' site setting

plugins/emoji/assets/javascripts/emoji.js.erb

@@ -1,4 +1,6 @@
 (function() {
+  // disable the whole plugin
+
 
   var emoji = <%= Dir.glob(File.expand_path("../../../public/images/*.png", __FILE__)).map{|f| File.basename(f).split(".")[0]}.inspect %>;
 
@@ -55,6 +57,7 @@
     } else {
       var replacement = translations[t];
       Discourse.Dialect.inlineReplace(t, function (token, match, prev) {
+        if (!Discourse.SiteSettings.enable_emoji) { return; }
         return checkPrev(prev) ? imageFor(replacement) : token;
       });
     }
@@ -69,6 +72,8 @@
                                            }).join("|"));
 
   Discourse.Dialect.registerInline(':', function(text, match, prev) {
+    if (!Discourse.SiteSettings.enable_emoji) { return; }
+
     var endPos = text.indexOf(':', 1),
         firstSpace = text.search(/\s/),
         contents;
@@ -104,6 +109,7 @@
   var ComposerView = (Discourse && Discourse.ComposerView) || (typeof require !== "undefined" && require('discourse/views/composer').default);
   if (ComposerView) {
     ComposerView.on("initWmdEditor", function(event){
+      if (!Discourse.SiteSettings.enable_emoji) { return; }
 
       var baseUrl = Discourse.getURL("/");
 

plugins/emoji/config/locales/client.en.yml

@@ -0,0 +1,6 @@
+en:
+  admin_js:
+    admin:
+      site_settings:
+        categories:
+          emoji: "Emoji"

plugins/emoji/config/locales/server.en.yml

@@ -0,0 +1,3 @@
+en:
+  site_settings:
+    enable_emoji: "Enable the emoji plugin"

plugins/emoji/config/settings.yml

@@ -0,0 +1,4 @@
+emoji:
+  enable_emoji:
+    default: true
+    client: true