From ea44e60b7ed5f674b6de65fad669ac43a45438cc Mon Sep 17 00:00:00 2001
From: janekptacijarabaci <janekptacijarabaci@seznam.cz>
Date: Fri, 18 Aug 2017 13:39:37 +0200
Subject: HTML - implement the labels attribute (follow up)

---
 dom/base/Element.h | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

(limited to 'dom/base/Element.h')

diff --git a/dom/base/Element.h b/dom/base/Element.h
index 5d878df60..cf1d197e2 100644
--- a/dom/base/Element.h
+++ b/dom/base/Element.h
@@ -544,6 +544,18 @@ public:
   virtual uint32_t GetAttrCount() const override;
   virtual bool IsNodeOfType(uint32_t aFlags) const override;
 
+  /**
+   * Get the class list of this element (this corresponds to the value of the
+   * class attribute).  This may be null if there are no classes, but that's not
+   * guaranteed (e.g. we could have class="").
+   */
+  const nsAttrValue* GetClasses() const {
+    if (HasFlag(NODE_MAY_HAVE_CLASS)) {
+      return DoGetClasses();
+    }
+    return nullptr;
+  }
+
 #ifdef DEBUG
   virtual void List(FILE* out = stdout, int32_t aIndent = 0) const override
   {
@@ -1371,6 +1383,12 @@ protected:
   nsTArray<nsDOMSlots::IntersectionObserverRegistration>* RegisteredIntersectionObservers();
 
 private:
+  /**
+   * Hook for implementing GetClasses.  This is guaranteed to only be
+   * called if the NODE_MAY_HAVE_CLASS flag is set.
+   */
+  const nsAttrValue* DoGetClasses() const;
+
   /**
    * Get this element's client area rect in app units.
    * @return the frame's client area
-- 
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