DocumentPictureInPicture.h

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/* -*- Mode: C++; tab-width: 2; 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_documentpip_DocumentPictureInPicture_h

#define mozilla_dom_documentpip_DocumentPictureInPicture_h

#include "mozilla/DOMEventTargetHelper.h"

#include "mozilla/dom/DocumentPictureInPictureBinding.h"

#include "nsIDOMEventListener.h"

namespace mozilla::dom {

class DocumentPictureInPicture final : public DOMEventTargetHelper,

                                       public nsIObserver,

                                       public nsIDOMEventListener {

 public:

  NS_DECL_NSIDOMEVENTLISTENER

  NS_DECL_NSIOBSERVER

  NS_DECL_ISUPPORTS_INHERITED

  NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(DocumentPictureInPicture,

                                           DOMEventTargetHelper)

  explicit DocumentPictureInPicture(nsPIDOMWindowInner* aWindow);

  JSObject* WrapObject(JSContext* aCx,

                       JS::Handle<JSObject*> aGivenProto) override;

  already_AddRefed<Promise> RequestWindow(

      const DocumentPictureInPictureOptions& aOptions, ErrorResult& aRv);

  // Get the current PiP window, exposed as webidl property

  nsGlobalWindowInner* GetWindow();

  IMPL_EVENT_HANDLER(enter);

  static Maybe<CSSIntRect> GetScreenRect(nsPIDOMWindowOuter* aWindow);

  static CSSIntSize CalcMaxDimensions(const CSSIntRect& screen);

  CSSIntRect DetermineExtent(bool aPreferInitialWindowPlacement,

                             int aRequestedWidth, int aRequestedHeight,

                             const CSSIntRect& screen);

 private:

  ~DocumentPictureInPicture();

  MOZ_CAN_RUN_SCRIPT void OnPiPResized();

  void OnPiPClosed();

  static const CSSIntSize sDefaultSize, sMinSize;

  // The extent of the most recently closed PiP

  Maybe<CSSIntRect> mPreviousExtent;

  // The size with which the most recent PiP was requested

  Maybe<CSSIntSize> mLastRequestedSize;

  // The currently open PiP (if any)

  RefPtr<nsPIDOMWindowInner> mLastOpenedWindow;

};

}  // namespace mozilla::dom

#endif  // mozilla_dom_documentpip_DocumentPictureInPicture_h