Fetch support (php-debugbar#422)

Author: stevelacey

src/DebugBar/JavascriptRenderer.php

@@ -70,6 +70,8 @@ class JavascriptRenderer
 
     protected $ajaxHandlerClass = 'PhpDebugBar.AjaxHandler';
 
+    protected $ajaxHandlerBindToFetch = false;
+
     protected $ajaxHandlerBindToJquery = true;
 
     protected $ajaxHandlerBindToXHR = false;
@@ -477,6 +479,27 @@ public function getAjaxHandlerClass()
         return $this->ajaxHandlerClass;
     }
 
+    /**
+     * Sets whether to call bindToFetch() on the ajax handler
+     *
+     * @param boolean $bind
+     */
+    public function setBindAjaxHandlerToFetch($bind = true)
+    {
+        $this->ajaxHandlerBindToFetch = $bind;
+        return $this;
+    }
+
+    /**
+     * Checks whether bindToFetch() will be called on the ajax handler
+     *
+     * @return boolean
+     */
+    public function isAjaxHandlerBoundToFetch()
+    {
+        return $this->ajaxHandlerBindToFetch;
+    }
+
     /**
      * Sets whether to call bindToJquery() on the ajax handler
      *
@@ -1022,6 +1045,9 @@ protected function getJsInitializationCode()
                 $this->variableName,
                 $this->ajaxHandlerAutoShow ? 'true' : 'false'
             );
+            if ($this->ajaxHandlerBindToFetch) {
+                $js .= sprintf("%s.ajaxHandler.bindToFetch();\n", $this->variableName);
+            }
             if ($this->ajaxHandlerBindToXHR) {
                 $js .= sprintf("%s.ajaxHandler.bindToXHR();\n", $this->variableName);
             } elseif ($this->ajaxHandlerBindToJquery) {