MVMContext.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 MVMContext_h_

#define MVMContext_h_

#include "Units.h"

#include "mozilla/Maybe.h"

#include "mozilla/PresShellForwards.h"

#include "nsISupportsImpl.h"

#include "nsStringFwd.h"

#include "nsViewportInfo.h"

class nsIDOMEventListener;

class nsIObserver;

class nsISupports;

namespace mozilla {

/**

 * The interface MobileViewportManager uses to interface with its surroundings.

 * This mainly exists to facilitate testing MobileViewportManager in isolation

 * from the rest of Gecko.

*/

class MVMContext {

  NS_INLINE_DECL_THREADSAFE_REFCOUNTING(MVMContext)

 protected:

  virtual ~MVMContext() {}

 public:

  virtual void AddEventListener(const nsAString& aType,

                                nsIDOMEventListener* aListener,

                                bool aUseCapture) = 0;

  virtual void RemoveEventListener(const nsAString& aType,

                                   nsIDOMEventListener* aListener,

                                   bool aUseCapture) = 0;

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

                           bool aOwnsWeak) = 0;

  virtual void RemoveObserver(nsIObserver* aObserver, const char* aTopic) = 0;

  virtual void Destroy() = 0;

  virtual nsViewportInfo GetViewportInfo(

      const ScreenIntSize& aDisplaySize) const = 0;

  virtual CSSToLayoutDeviceScale CSSToDevPixelScale() const = 0;

  virtual float GetResolution() const = 0;

  virtual bool SubjectMatchesDocument(nsISupports* aSubject) const = 0;

  virtual Maybe<CSSRect> CalculateScrollableRectForRSF() const = 0;

  virtual bool IsResolutionUpdatedByApz() const = 0;

  virtual LayoutDeviceMargin ScrollbarAreaToExcludeFromCompositionBounds()

      const = 0;

  virtual Maybe<LayoutDeviceIntSize> GetDocumentViewerSize() const = 0;

  virtual bool AllowZoomingForDocument() const = 0;

  virtual bool IsInReaderMode() const = 0;

  virtual bool IsDocumentLoading() const = 0;

  virtual void SetResolutionAndScaleTo(float aResolution,

                                       ResolutionChangeOrigin aOrigin) = 0;

  virtual void SetVisualViewportSize(const CSSSize& aSize) = 0;

  virtual void PostVisualViewportResizeEventByDynamicToolbar() = 0;

  virtual void UpdateDisplayPortMargins() = 0;

  virtual void Reflow(const CSSSize& aNewSize) = 0;

  virtual ScreenIntCoord GetDynamicToolbarOffset() = 0;

};

}  // namespace mozilla

#endif  // MVMContext_h_