/* -*- 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_HTMLSourceElement_h

#define mozilla_dom_HTMLSourceElement_h

#include "mozilla/Attributes.h"

#include "nsGenericHTMLElement.h"

#include "mozilla/dom/HTMLMediaElement.h"

class nsAttrValue;

namespace mozilla {

namespace dom {

class MediaList;

class HTMLSourceElement final : public nsGenericHTMLElement

{

public:

  explicit HTMLSourceElement(already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo);

  // nsISupports

  NS_DECL_ISUPPORTS_INHERITED

  NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(HTMLSourceElement,

                                           nsGenericHTMLElement)

  NS_IMPL_FROMNODE_HTML_WITH_TAG(HTMLSourceElement, source)

  virtual nsresult Clone(dom::NodeInfo*, nsINode** aResult) const override;

  // Override BindToTree() so that we can trigger a load when we add a

  // child source element.

  virtual nsresult BindToTree(nsIDocument* aDocument, nsIContent* aParent,

                              nsIContent* aBindingParent) override;

  // If this element's media attr matches for its owner document.  Returns true

  // if no media attr was set.

  bool MatchesCurrentMedia();

  // True if a source tag would match the given media attribute for the

  // specified document. Used by the preloader to determine valid <source> tags

  // prior to DOM creation.

  static bool WouldMatchMediaForDocument(const nsAString& aMediaStr,

                                         const nsIDocument *aDocument);

  // Return the MediaSource object if any associated with the src attribute

  // when it was set.

  MediaSource* GetSrcMediaSource() { return mSrcMediaSource; };

  // WebIDL

  void GetSrc(nsString& aSrc)

  {

    GetURIAttr(nsGkAtoms::src, nullptr, aSrc);

  }

  void SetSrc(const nsAString& aSrc, nsIPrincipal* aTriggeringPrincipal, mozilla::ErrorResult& rv)

  {

    SetHTMLAttr(nsGkAtoms::src, aSrc, aTriggeringPrincipal, rv);

  }

  nsIPrincipal* GetSrcTriggeringPrincipal() const

  {

    return mSrcTriggeringPrincipal;

  }

  nsIPrincipal* GetSrcsetTriggeringPrincipal() const

  {

    return mSrcsetTriggeringPrincipal;

  }

  void GetType(DOMString& aType)

  {

    GetHTMLAttr(nsGkAtoms::type, aType);

  }

  void SetType(const nsAString& aType, ErrorResult& rv)

  {

    SetHTMLAttr(nsGkAtoms::type, aType, rv);

  }

  void GetSrcset(DOMString& aSrcset)

  {

    GetHTMLAttr(nsGkAtoms::srcset, aSrcset);

  }

  void SetSrcset(const nsAString& aSrcset, nsIPrincipal* aTriggeringPrincipal, mozilla::ErrorResult& rv)

  {

    SetHTMLAttr(nsGkAtoms::srcset, aSrcset, aTriggeringPrincipal, rv);

  }

  void GetSizes(DOMString& aSizes)

  {

    GetHTMLAttr(nsGkAtoms::sizes, aSizes);

  }

  void SetSizes(const nsAString& aSizes, mozilla::ErrorResult& rv)

  {

    SetHTMLAttr(nsGkAtoms::sizes, aSizes, rv);

  }

  void GetMedia(DOMString& aMedia)

  {

    GetHTMLAttr(nsGkAtoms::media, aMedia);

  }

  void SetMedia(const nsAString& aMedia, mozilla::ErrorResult& rv)

  {

    SetHTMLAttr(nsGkAtoms::media, aMedia, rv);

  }

protected:

  virtual ~HTMLSourceElement();

  virtual JSObject* WrapNode(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;

protected:

  virtual nsresult AfterSetAttr(int32_t aNameSpaceID, nsAtom* aName,

                                const nsAttrValue* aValue,

                                const nsAttrValue* aOldValue,

                                nsIPrincipal* aMaybeScriptedPrincipal,

                                bool aNotify) override;

private:

  RefPtr<MediaList> mMediaList;

  RefPtr<MediaSource> mSrcMediaSource;

  // The triggering principal for the src attribute.

  nsCOMPtr<nsIPrincipal> mSrcTriggeringPrincipal;

  // The triggering principal for the srcset attribute.

  nsCOMPtr<nsIPrincipal> mSrcsetTriggeringPrincipal;

  // Generates a new MediaList using the given input

  void UpdateMediaList(const nsAttrValue* aValue);

};

} // namespace dom

} // namespace mozilla

#endif // mozilla_dom_HTMLSourceElement_h