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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef THIRD_PARTY_BLINK_RENDERER_CORE_TESTING_CORE_UNIT_TEST_HELPER_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_TESTING_CORE_UNIT_TEST_HELPER_H_
#include <gtest/gtest.h>
#include <memory>
#include "cc/layers/layer.h"
#include "third_party/blink/renderer/core/dom/document.h"
#include "third_party/blink/renderer/core/frame/local_frame_client.h"
#include "third_party/blink/renderer/core/frame/local_frame_view.h"
#include "third_party/blink/renderer/core/frame/settings.h"
#include "third_party/blink/renderer/core/html/html_element.h"
#include "third_party/blink/renderer/core/layout/geometry/logical_rect.h"
#include "third_party/blink/renderer/core/layout/geometry/physical_rect.h"
#include "third_party/blink/renderer/core/layout/layout_view.h"
#include "third_party/blink/renderer/core/layout/ng/layout_ng_block_flow.h"
#include "third_party/blink/renderer/core/loader/empty_clients.h"
#include "third_party/blink/renderer/core/paint/ng/ng_paint_fragment.h"
#include "third_party/blink/renderer/core/testing/page_test_base.h"
#include "third_party/blink/renderer/platform/testing/layer_tree_host_embedder.h"
#include "third_party/blink/renderer/platform/wtf/allocator/allocator.h"
namespace blink {
class PaintLayer;
class SingleChildLocalFrameClient final : public EmptyLocalFrameClient {
public:
explicit SingleChildLocalFrameClient() = default;
void Trace(Visitor* visitor) override {
visitor->Trace(child_);
EmptyLocalFrameClient::Trace(visitor);
}
// LocalFrameClient overrides:
LocalFrame* FirstChild() const override { return child_.Get(); }
LocalFrame* CreateFrame(const AtomicString& name,
HTMLFrameOwnerElement*) override;
void DidDetachChild() { child_ = nullptr; }
private:
Member<LocalFrame> child_;
};
class LocalFrameClientWithParent final : public EmptyLocalFrameClient {
public:
explicit LocalFrameClientWithParent(LocalFrame* parent) : parent_(parent) {}
void Trace(Visitor* visitor) override {
visitor->Trace(parent_);
EmptyLocalFrameClient::Trace(visitor);
}
// FrameClient overrides:
void Detached(FrameDetachType) override;
LocalFrame* Parent() const override { return parent_.Get(); }
LocalFrame* Top() const override { return parent_.Get(); }
private:
Member<LocalFrame> parent_;
};
// RenderingTestChromeClient ensures that we have a LayerTreeHost which allows
// testing property tree creation.
class RenderingTestChromeClient : public EmptyChromeClient {
public:
void SetUp() {
// Runtime flags can affect LayerTreeHost's settings so this needs to be
// recreated for each test.
layer_tree_.reset(new LayerTreeHostEmbedder());
device_emulation_transform_ = TransformationMatrix();
}
bool HasLayer(const cc::Layer& layer) {
return layer.layer_tree_host() == layer_tree_->layer_tree_host();
}
void AttachRootLayer(scoped_refptr<cc::Layer> layer,
LocalFrame* local_root) override {
layer_tree_->layer_tree_host()->SetRootLayer(std::move(layer));
}
cc::LayerTreeHost* layer_tree_host() {
return layer_tree_->layer_tree_host();
}
void SetDeviceEmulationTransform(const TransformationMatrix& t) {
device_emulation_transform_ = t;
}
TransformationMatrix GetDeviceEmulationTransform() const override {
return device_emulation_transform_;
}
void InjectGestureScrollEvent(LocalFrame& local_frame,
WebGestureDevice device,
const gfx::Vector2dF& delta,
ScrollGranularity granularity,
CompositorElementId scrollable_area_element_id,
WebInputEvent::Type injected_type) override;
private:
std::unique_ptr<LayerTreeHostEmbedder> layer_tree_;
TransformationMatrix device_emulation_transform_;
};
class RenderingTest : public PageTestBase {
USING_FAST_MALLOC(RenderingTest);
public:
virtual FrameSettingOverrideFunction SettingOverrider() const {
return nullptr;
}
virtual RenderingTestChromeClient& GetChromeClient() const;
explicit RenderingTest(LocalFrameClient* = nullptr);
const Node* HitTest(int x, int y);
HitTestResult::NodeSet RectBasedHitTest(const PhysicalRect& rect);
protected:
void SetUp() override;
void TearDown() override;
LayoutView& GetLayoutView() const {
return *GetDocument().View()->GetLayoutView();
}
LocalFrame& ChildFrame() {
return *To<LocalFrame>(GetFrame().Tree().FirstChild());
}
Document& ChildDocument() { return *ChildFrame().GetDocument(); }
void SetChildFrameHTML(const String&);
void RunDocumentLifecycle() {
GetDocument().View()->SetParentVisible(true);
GetDocument().View()->SetSelfVisible(true);
UpdateAllLifecyclePhasesForTest();
}
LayoutObject* GetLayoutObjectByElementId(const char* id) const {
const auto* element = GetElementById(id);
return element ? element->GetLayoutObject() : nullptr;
}
PaintLayer* GetPaintLayerByElementId(const char* id) {
return ToLayoutBoxModelObject(GetLayoutObjectByElementId(id))->Layer();
}
const DisplayItemClient* GetDisplayItemClientFromLayoutObject(
LayoutObject* obj) const {
LayoutNGBlockFlow* block_flow = ToLayoutNGBlockFlowOrNull(obj);
if (block_flow && block_flow->PaintFragment())
return block_flow->PaintFragment();
return obj;
}
const DisplayItemClient* GetDisplayItemClientFromElementId(
const char* id) const {
return GetDisplayItemClientFromLayoutObject(GetLayoutObjectByElementId(id));
}
private:
Persistent<LocalFrameClient> local_frame_client_;
};
// These constructors are for convenience of tests to construct these geometries
// from integers.
inline LogicalOffset::LogicalOffset(int inline_offset, int block_offset)
: inline_offset(inline_offset), block_offset(block_offset) {}
inline LogicalSize::LogicalSize(int inline_size, int block_size)
: inline_size(inline_size), block_size(block_size) {}
inline LogicalRect::LogicalRect(int inline_offset,
int block_offset,
int inline_size,
int block_size)
: offset(inline_offset, block_offset), size(inline_size, block_size) {}
inline PhysicalOffset::PhysicalOffset(int left, int top)
: left(left), top(top) {}
inline PhysicalSize::PhysicalSize(int width, int height)
: width(width), height(height) {}
inline PhysicalRect::PhysicalRect(int left, int top, int width, int height)
: offset(left, top), size(width, height) {}
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_CORE_TESTING_CORE_UNIT_TEST_HELPER_H_
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