GeckoMVMContext.h - mozsearch

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/* 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 GeckoMVMContext_h_

#define GeckoMVMContext_h_

#include "MVMContext.h"

#include "mozilla/Attributes.h"  // for MOZ_NON_OWNING_REF

#include "mozilla/RefPtr.h"

#include "nsCOMPtr.h"

namespace mozilla {

class PresShell;

namespace dom {

class Document;

class EventTarget;

}  // namespace dom

/**

 * An implementation of MVMContext that uses actual Gecko components.

 * This is intended for production use (whereas TestMVMContext is intended for

 * testing.)

*/

class GeckoMVMContext final : public MVMContext {

 public:

  explicit GeckoMVMContext(dom::Document* aDocument, PresShell* aPresShell);

  void AddEventListener(const nsAString& aType, nsIDOMEventListener* aListener,

                        bool aUseCapture) override;

  void RemoveEventListener(const nsAString& aType,

                           nsIDOMEventListener* aListener,

                           bool aUseCapture) override;

  void AddObserver(nsIObserver* aObserver, const char* aTopic,

                   bool aOwnsWeak) override;

  void RemoveObserver(nsIObserver* aObserver, const char* aTopic) override;

  void Destroy() override;

  nsViewportInfo GetViewportInfo(

      const ScreenIntSize& aDisplaySize) const override;

  CSSToLayoutDeviceScale CSSToDevPixelScale() const override;

  float GetResolution() const override;

  bool SubjectMatchesDocument(nsISupports* aSubject) const override;

  Maybe<CSSRect> CalculateScrollableRectForRSF() const override;

  bool IsResolutionUpdatedByApz() const override;

  LayoutDeviceMargin ScrollbarAreaToExcludeFromCompositionBounds()

      const override;

  Maybe<LayoutDeviceIntSize> GetDocumentViewerSize() const override;

  bool AllowZoomingForDocument() const override;

  bool IsInReaderMode() const override;

  bool IsDocumentLoading() const override;

  void SetResolutionAndScaleTo(float aResolution,

                               ResolutionChangeOrigin aOrigin) override;

  void SetVisualViewportSize(const CSSSize& aSize) override;

  void PostVisualViewportResizeEventByDynamicToolbar() override;

  void UpdateDisplayPortMargins() override;

  MOZ_CAN_RUN_SCRIPT_BOUNDARY void Reflow(const CSSSize& aNewSize) override;

  ScreenIntCoord GetDynamicToolbarOffset() override;

 private:

  RefPtr<dom::Document> mDocument;

  // raw ref since the presShell owns this

  PresShell* MOZ_NON_OWNING_REF mPresShell;

  nsCOMPtr<dom::EventTarget> mEventTarget;

};

}  // namespace mozilla

#endif  // GeckoMVMContext_h_