Undo and Redo Buttons Plugin

redactorextras/redactorExtrasPlugin.php

@@ -38,15 +38,18 @@ public function getReleaseFeedUrl()
     {
         return 'https://raw.githubusercontent.com/elliotlewis/Redactor-Extras/master/changelog.json';
     }
-    
+
     public function getSourceLanguage()
     {
         return 'en';
     }
-    
+
     protected function defineSettings()
     {
         return array(
+            'bufferButtons' => array(
+                AttributeType::Bool, 'default' => false
+            ),
             'scriptButtons' => array(
                 AttributeType::Bool, 'default' => false
             ),
@@ -69,21 +72,26 @@ protected function defineSettings()
             'extraPluginCss'      => AttributeType::String,
         );
     }
-    
+
     public function getSettingsHtml()
     {
         return craft()->templates->render('redactorextras/_settings', array(
             'settings' => $this->getSettings()
         ));
     }
-    
+
     public function init()
 	{
 		if (craft()->request->isCpRequest())
 		{
             // Get settings
             $settings = $this->getSettings();
 
+            if($settings->bufferButtons === "1")
+            {
+                craft()->templates->includeJsResource('redactorextras/plugins/bufferbuttons.js');
+            }
+
             if($settings->scriptButtons === "1")
             {
                 craft()->templates->includeJsResource('redactorextras/plugins/scriptbuttons.js');
@@ -99,12 +107,12 @@ public function init()
                 craft()->templates->includeJsResource('redactorextras/plugins/alignment.js');
                 craft()->templates->includeCssResource('redactorextras/plugins/alignment.css');
             }
-            
+
             if($settings->properties === "1")
             {
                 craft()->templates->includeJsResource('redactorextras/plugins/properties.js');
             }
-            
+
             if($settings->definedlinks === "1")
             {
                 craft()->templates->includeJsResource('redactorextras/plugins/definedlinks.js');
@@ -114,7 +122,7 @@ public function init()
             {
                 craft()->templates->includeJsResource('redactorextras/plugins/limiter.js');
             }
-            
+
             if($settings->extraPluginJs != "")
             {
                 craft()->templates->includeJsFile($settings->extraPluginJs);
@@ -125,4 +133,4 @@ public function init()
             }
 		}
 	}
-}
+}

redactorextras/resources/plugins/bufferbuttons.js

@@ -0,0 +1,22 @@
+// Undo and Redo Buttons
+// Adapted from offical Redactor site
+// https://imperavi.com/redactor/examples/buttons-undo-and-redo/
+
+if (!RedactorPlugins) var RedactorPlugins = {};
+
+RedactorPlugins.bufferbuttons = function()
+{
+    return {
+        init: function()
+        {
+            var undo = this.button.addFirst('undo', 'Undo');
+            var redo = this.button.addAfter('undo', 'redo', 'Redo');
+
+            this.button.addCallback(undo, this.buffer.undo);
+            this.button.addCallback(redo, this.buffer.redo);
+
+            this.button.setIcon(undo, '<i class="re-icon-undo"></i>');
+            this.button.setIcon(redo, '<i class="re-icon-redo"></i>');
+        }
+    };
+};

redactorextras/templates/_settings.html

@@ -44,6 +44,15 @@ <h2>Extra plugins</h2>
 
 <p>Choose from the available extra Redactor plugins:</p>
 
+{{ forms.lightswitchField({
+	label:        "Undo and Redo"|t,
+	id:           "bufferButtons",
+	name:         "bufferButtons",
+	instructions: "Add undo and redo buttons. <code class=\"inlinecode\">'bufferbuttons'</code>"|t,
+	on:           settings.bufferButtons,
+	errors:       settings.getErrors('bufferButtons')
+}) }}
+
 {{ forms.lightswitchField({
 	label:        "Superscript and Subscript"|t,
 	id:           "scriptButtons",
@@ -152,4 +161,4 @@ <h3>Custom plugin</h3>
 	id:            "extraPluginCss",
 	name:          "extraPluginCss",
 	value:         settings.extraPluginCss,
-}) }}
+}) }}