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// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CONTENT_BROWSER_RENDERER_HOST_DIRECT_MANIPULATION_TEST_HELPER_WIN_H_
#define CONTENT_BROWSER_RENDERER_HOST_DIRECT_MANIPULATION_TEST_HELPER_WIN_H_
#include <windows.h>
#include <directmanipulation.h>
#include <wrl.h>
#include <array>
namespace content {
class PrecisionTouchpadBrowserTest;
// Size of the |transforms_| array. The DirectManipulationContent API specifies
// that the size is always 6 for direct manipulation transforms.
inline constexpr int kTransformMatrixSize = 6;
// This class is used for setting up mock content to be used for testing direct
// manipulation and precision touchpad code paths. Most of its methods aren't
// used, and its only real purpose is to store, update, and provide the
// transforms scale, scroll_x, and scroll_y.
class MockDirectManipulationContent
: public Microsoft::WRL::RuntimeClass<
Microsoft::WRL::RuntimeClassFlags<
Microsoft::WRL::RuntimeClassType::ClassicCom>,
Microsoft::WRL::Implements<
Microsoft::WRL::RuntimeClassFlags<
Microsoft::WRL::RuntimeClassType::ClassicCom>,
Microsoft::WRL::FtmBase,
IDirectManipulationContent>> {
public:
MockDirectManipulationContent();
MockDirectManipulationContent(const MockDirectManipulationContent&) = delete;
MockDirectManipulationContent& operator=(
const MockDirectManipulationContent&) = delete;
// IDirectManipulationContent:
~MockDirectManipulationContent() override;
void SetContentTransform(float scale, float scroll_x, float scroll_y);
// IDirectManipulationContent:
HRESULT STDMETHODCALLTYPE GetContentTransform(float* transforms,
DWORD point_count) override;
// Other Overrides, also from IDirectManipulationContent
HRESULT STDMETHODCALLTYPE GetContentRect(RECT* contentSize) override;
HRESULT STDMETHODCALLTYPE SetContentRect(const RECT* contentSize) override;
HRESULT STDMETHODCALLTYPE GetViewport(REFIID riid, void** object) override;
HRESULT STDMETHODCALLTYPE GetTag(REFIID riid,
void** object,
UINT32* id) override;
HRESULT STDMETHODCALLTYPE SetTag(IUnknown* object, UINT32 id) override;
HRESULT STDMETHODCALLTYPE GetOutputTransform(float* matrix,
DWORD point_count) override;
HRESULT STDMETHODCALLTYPE SyncContentTransform(const float* matrix,
DWORD point_count) override;
private:
friend class PrecisionTouchpadBrowserTest;
// IDirectManipulationContent provides a 3x2 transform matrix, written out
// flatly as M = [(1,1), (1,2), (2,1), (2,2), (3,1), (3,2)].
// Each element stores the following information:
// (1,1) - x scale
// (1,2) - y rotation (0 when rotation is not allowed, such as in Chromium)
// (2,1) - x rotation (0 when rotation is not allowed)
// (2,2) - y scale
// (3,1) - x offset
// (3,2) - y offset.
std::array<float, kTransformMatrixSize> transforms_;
};
} // namespace content
#endif // CONTENT_BROWSER_RENDERER_HOST_DIRECT_MANIPULATION_TEST_HELPER_WIN_H_
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