64 lines
2.3 KiB
C++
64 lines
2.3 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_layers_MatrixMessage_h
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#define mozilla_layers_MatrixMessage_h
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#include "mozilla/Maybe.h"
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#include "mozilla/gfx/Matrix.h"
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#include "mozilla/layers/LayersTypes.h"
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#include "Units.h" // for ScreenRect
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#include "UnitTransforms.h"
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namespace mozilla {
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namespace layers {
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class MatrixMessage {
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public:
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// Don't use this one directly
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MatrixMessage() = default;
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MatrixMessage(const Maybe<LayerToScreenMatrix4x4>& aMatrix,
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const ScreenRect& aTopLevelViewportVisibleRectInBrowserCoords,
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const LayersId& aLayersId)
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: mMatrix(ToUnknownMatrix(aMatrix)),
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mTopLevelViewportVisibleRectInBrowserCoords(
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aTopLevelViewportVisibleRectInBrowserCoords),
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mLayersId(aLayersId) {}
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inline Maybe<LayerToScreenMatrix4x4> GetMatrix() const {
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return LayerToScreenMatrix4x4::FromUnknownMatrix(mMatrix);
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}
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inline ScreenRect GetTopLevelViewportVisibleRectInBrowserCoords() const {
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return mTopLevelViewportVisibleRectInBrowserCoords;
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}
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inline const LayersId& GetLayersId() const { return mLayersId; }
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bool operator==(const MatrixMessage& aOther) const {
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return aOther.mMatrix == mMatrix &&
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aOther.mTopLevelViewportVisibleRectInBrowserCoords ==
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mTopLevelViewportVisibleRectInBrowserCoords &&
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aOther.mLayersId == mLayersId;
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}
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bool operator!=(const MatrixMessage& aOther) const {
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return !(*this == aOther);
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}
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// Fields are public for IPC. Don't access directly
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// elsewhere.
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// Transform matrix to convert this layer to screen coordinate.
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Maybe<gfx::Matrix4x4> mMatrix; // Untyped for IPC
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// The remote iframe document rectangle corresponding to this layer.
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// The rectangle is the result of clipped out by ancestor async scrolling so
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// that the rectangle will be empty if it's completely scrolled out of view.
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ScreenRect mTopLevelViewportVisibleRectInBrowserCoords;
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LayersId mLayersId;
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};
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}; // namespace layers
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}; // namespace mozilla
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#endif // mozilla_layers_MatrixMessage_h
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