ChromeObserver.h - mozsearch

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* vim: set ts=8 sts=2 et sw=2 tw=80: */

/* 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 mozilla_dom_ChromeObserver_h

#define mozilla_dom_ChromeObserver_h

#include "nsStubMutationObserver.h"

class nsIWidget;

namespace mozilla::dom {

class Document;

class ChromeObserver final : public nsStubMutationObserver {

 public:

  NS_DECL_ISUPPORTS

  explicit ChromeObserver(Document* aDocument);

  void Init();

  NS_DECL_NSIMUTATIONOBSERVER_ATTRIBUTECHANGED

  NS_DECL_NSIMUTATIONOBSERVER_NODEWILLBEDESTROYED

 protected:

  nsIWidget* GetWindowWidget();

  void SetDrawsTitle(bool aState);

  void SetChromeMargins(const nsAttrValue* aValue);

  nsresult HideWindowChrome(bool aShouldHide);

 private:

  void ResetChromeMargins();

  ~ChromeObserver();

  // A weak pointer cleared when the element will be destroyed.

  Document* MOZ_NON_OWNING_REF mDocument;

};

}  // namespace mozilla::dom

#endif  // mozilla_dom_ChromeObserver_h