/* 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_layers_MatrixMessage_h
#define mozilla_layers_MatrixMessage_h
#include "mozilla/Maybe.h"
#include "mozilla/gfx/Matrix.h"
#include "mozilla/layers/LayersTypes.h"
#include "Units.h" // for ScreenRect
#include "UnitTransforms.h"
namespace mozilla {
namespace layers {
class MatrixMessage {
public:
// Don't use this one directly
MatrixMessage() =
default;
MatrixMessage(
const Maybe<LayerToScreenMatrix4x4>& aMatrix,
const ScreenRect& aTopLevelViewportVisibleRectInBrowserCoords,
const LayersId& aLayersId)
: mMatrix(ToUnknownMatrix(aMatrix)),
mTopLevelViewportVisibleRectInBrowserCoords(
aTopLevelViewportVisibleRectInBrowserCoords),
mLayersId(aLayersId) {}
inline Maybe<LayerToScreenMatrix4x4> GetMatrix()
const {
return LayerToScreenMatrix4x4::FromUnknownMatrix(mMatrix);
}
inline ScreenRect GetTopLevelViewportVisibleRectInBrowserCoords()
const {
return mTopLevelViewportVisibleRectInBrowserCoords;
}
inline const LayersId& GetLayersId()
const {
return mLayersId; }
bool operator==(
const MatrixMessage& aOther)
const {
return aOther.mMatrix == mMatrix &&
aOther.mTopLevelViewportVisibleRectInBrowserCoords ==
mTopLevelViewportVisibleRectInBrowserCoords &&
aOther.mLayersId == mLayersId;
}
bool operator!=(
const MatrixMessage& aOther)
const {
return !(*this == aOther);
}
// Fields are public for IPC. Don't access directly
// elsewhere.
// Transform matrix to convert this layer to screen coordinate.
Maybe<gfx::Matrix4x4> mMatrix;
// Untyped for IPC
// The remote iframe document rectangle corresponding to this layer.
// The rectangle is the result of clipped out by ancestor async scrolling so
// that the rectangle will be empty if it's completely scrolled out of view.
ScreenRect mTopLevelViewportVisibleRectInBrowserCoords;
LayersId mLayersId;
};
};
// namespace layers
};
// namespace mozilla
#endif // mozilla_layers_MatrixMessage_h
