From 120c7729668b2b676e291e67db1e1c4666edce9f Mon Sep 17 00:00:00 2001
From: Christopher Joe <cjoe@silverstripe.com>
Date: Wed, 30 Aug 2017 22:41:56 +1200
Subject: [PATCH] Add TreeDropdownField from React to Entwine

---
 src/Forms/TreeDropdownField.php               | 20 +++++++++++++++++++
 .../SilverStripe/Forms/TreeDropdownField.ss   | 11 +++++-----
 2 files changed, 25 insertions(+), 6 deletions(-)

diff --git a/src/Forms/TreeDropdownField.php b/src/Forms/TreeDropdownField.php
index 23cfda353..2bea56ae9 100644
--- a/src/Forms/TreeDropdownField.php
+++ b/src/Forms/TreeDropdownField.php
@@ -605,6 +605,26 @@ class TreeDropdownField extends FormField
         $callback = $this->getDisableFunction();
         return $callback && call_user_func($callback, $node);
     }
+    
+    /**
+     * Attributes to be given for this field type
+     * @return array
+     */
+    public function getAttributes()
+    {
+        $attributes = array(
+            'class' => $this->extraClass(),
+            'id' => $this->ID(),
+            'data-schema' => json_encode($this->getSchemaData()),
+            'data-state' => json_encode($this->getSchemaState()),
+        );
+        
+        $attributes = array_merge($attributes, $this->attributes);
+        
+        $this->extend('updateAttributes', $attributes);
+        
+        return $attributes;
+    }
 
     /**
      * @param string $field
diff --git a/templates/SilverStripe/Forms/TreeDropdownField.ss b/templates/SilverStripe/Forms/TreeDropdownField.ss
index ed4eaa4a8..fad2a4e5f 100644
--- a/templates/SilverStripe/Forms/TreeDropdownField.ss
+++ b/templates/SilverStripe/Forms/TreeDropdownField.ss
@@ -1,8 +1,7 @@
-<div class="TreeDropdownField <% if $extraClass %> $extraClass<% end_if %><% if $ShowSearch %> searchable<% end_if %>"
-     data-url-tree="$Link('tree')"
-     data-title="$Title.ATT"
-     data-empty-title="$EmptyTitle.ATT"
-     <% if $Description %>title="$Description.ATT"<% end_if %>
-     <% if $Metadata %>data-metadata="$Metadata.ATT"<% end_if %> tabindex="0">
+<div
+	class="TreeDropdownField<% if $extraClass %> $extraClass<% end_if %><% if $ShowSearch %> searchable<% end_if %>"
+	$AttributesHTML('class')
+	<% if $Metadata %>data-metadata="$Metadata.ATT"<% end_if %>
+>
 	<input id="$ID" type="hidden" name="$Name.ATT" value="$Value.ATT" />
 </div>