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// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ui/compositor/test/test_compositor_host.h"
#include <windows.h>
#include <memory>
#include "base/compiler_specific.h"
#include "base/task/single_thread_task_runner.h"
#include "components/viz/common/surfaces/parent_local_surface_id_allocator.h"
#include "ui/compositor/compositor.h"
#include "ui/gfx/win/window_impl.h"
namespace ui {
class TestCompositorHostWin : public TestCompositorHost,
public gfx::WindowImpl {
public:
TestCompositorHostWin(const gfx::Rect& bounds,
ui::ContextFactory* context_factory) {
Init(NULL, bounds);
compositor_ = std::make_unique<ui::Compositor>(
context_factory->AllocateFrameSinkId(), context_factory,
base::SingleThreadTaskRunner::GetCurrentDefault(),
false /* enable_pixel_canvas */);
allocator_.GenerateId();
compositor_->SetAcceleratedWidget(hwnd());
compositor_->SetScaleAndSize(1.0f, GetSize(),
allocator_.GetCurrentLocalSurfaceId());
}
TestCompositorHostWin(const TestCompositorHostWin&) = delete;
TestCompositorHostWin& operator=(const TestCompositorHostWin&) = delete;
~TestCompositorHostWin() override { DestroyWindow(hwnd()); }
// Overridden from TestCompositorHost:
void Show() override {
ShowWindow(hwnd(), SW_SHOWNORMAL);
compositor_->SetVisible(true);
}
ui::Compositor* GetCompositor() override { return compositor_.get(); }
private:
CR_BEGIN_MSG_MAP_EX(TestCompositorHostWin)
CR_MSG_WM_PAINT(OnPaint)
CR_END_MSG_MAP()
void OnPaint(HDC dc) {
compositor_->ScheduleFullRedraw();
ValidateRect(hwnd(), NULL);
}
gfx::Size GetSize() {
RECT r;
GetClientRect(hwnd(), &r);
return gfx::Rect(r).size();
}
std::unique_ptr<ui::Compositor> compositor_;
viz::ParentLocalSurfaceIdAllocator allocator_;
CR_MSG_MAP_CLASS_DECLARATIONS(TestCompositorHostWin)
};
TestCompositorHost* TestCompositorHost::Create(
const gfx::Rect& bounds,
ui::ContextFactory* context_factory) {
return new TestCompositorHostWin(bounds, context_factory);
}
} // namespace ui
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