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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 GFX_ZOOMCONSTRAINTS_H
#define GFX_ZOOMCONSTRAINTS_H
#include <iosfwd>
#include "Units.h" // for CSSRect, CSSPixel, etc
#include "mozilla/Maybe.h"
#include "mozilla/layers/ScrollableLayerGuid.h" // for ScrollableLayerGuid
namespace mozilla {
namespace layers {
struct ZoomConstraints {
bool mAllowZoom;
bool mAllowDoubleTapZoom;
CSSToParentLayerScale mMinZoom;
CSSToParentLayerScale mMaxZoom;
ZoomConstraints() : mAllowZoom(true), mAllowDoubleTapZoom(true) {
MOZ_COUNT_CTOR(ZoomConstraints);
}
ZoomConstraints(bool aAllowZoom, bool aAllowDoubleTapZoom,
const CSSToParentLayerScale& aMinZoom,
const CSSToParentLayerScale& aMaxZoom)
: mAllowZoom(aAllowZoom),
mAllowDoubleTapZoom(aAllowDoubleTapZoom),
mMinZoom(aMinZoom),
mMaxZoom(aMaxZoom) {
MOZ_COUNT_CTOR(ZoomConstraints);
}
ZoomConstraints(const ZoomConstraints& other)
: mAllowZoom(other.mAllowZoom),
mAllowDoubleTapZoom(other.mAllowDoubleTapZoom),
mMinZoom(other.mMinZoom),
mMaxZoom(other.mMaxZoom) {
MOZ_COUNT_CTOR(ZoomConstraints);
}
MOZ_COUNTED_DTOR(ZoomConstraints)
bool operator==(const ZoomConstraints& other) const {
return mAllowZoom == other.mAllowZoom &&
mAllowDoubleTapZoom == other.mAllowDoubleTapZoom &&
mMinZoom == other.mMinZoom && mMaxZoom == other.mMaxZoom;
}
bool operator!=(const ZoomConstraints& other) const {
return !(*this == other);
}
friend std::ostream& operator<<(std::ostream& aStream,
const ZoomConstraints& z);
};
typedef Maybe<ZoomConstraints> MaybeZoomConstraints;
} // namespace layers
} // namespace mozilla
#endif /* GFX_ZOOMCONSTRAINTS_H */
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