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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /editor/libeditor/ChangeAttributeTransaction.h
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
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+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef ChangeAttributeTransaction_h
+#define ChangeAttributeTransaction_h
+
+#include "mozilla/Attributes.h" // override
+#include "mozilla/EditTransactionBase.h" // base class
+#include "nsCOMPtr.h" // nsCOMPtr members
+#include "nsCycleCollectionParticipant.h" // NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED
+#include "nsISupportsImpl.h" // NS_DECL_ISUPPORTS_INHERITED
+#include "nsString.h" // nsString members
+
+class nsIAtom;
+
+namespace mozilla {
+
+namespace dom {
+class Element;
+} // namespace dom
+
+/**
+ * A transaction that changes an attribute of a content node. This transaction
+ * covers add, remove, and change attribute.
+ */
+class ChangeAttributeTransaction final : public EditTransactionBase
+{
+public:
+ /**
+ * @param aElement the element whose attribute will be changed
+ * @param aAttribute the name of the attribute to change
+ * @param aValue the new value for aAttribute, or null to remove
+ */
+ ChangeAttributeTransaction(dom::Element& aElement,
+ nsIAtom& aAttribute,
+ const nsAString* aValue);
+
+ NS_DECL_ISUPPORTS_INHERITED
+ NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(ChangeAttributeTransaction,
+ EditTransactionBase)
+
+ NS_DECL_EDITTRANSACTIONBASE
+
+ NS_IMETHOD RedoTransaction() override;
+
+private:
+ virtual ~ChangeAttributeTransaction();
+
+ // The element to operate upon
+ nsCOMPtr<dom::Element> mElement;
+
+ // The attribute to change
+ nsCOMPtr<nsIAtom> mAttribute;
+
+ // The value to set the attribute to (ignored if mRemoveAttribute==true)
+ nsString mValue;
+
+ // True if the operation is to remove mAttribute from mElement
+ bool mRemoveAttribute;
+
+ // True if the mAttribute was set on mElement at the time of execution
+ bool mAttributeWasSet;
+
+ // The value to set the attribute to for undo
+ nsString mUndoValue;
+};
+
+} // namespace mozilla
+
+#endif // #ifndef ChangeAttributeTransaction_h