third_party/WebKit/Source/core/editing/CaretDisplayItemClientTest.cpp - chromium/src - Git at Google

 // Copyright 2017 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.

 #include "core/editing/CaretDisplayItemClient.h"

 #include "core/HTMLNames.h"
 #include "core/editing/FrameSelection.h"
 #include "core/frame/FrameView.h"
 #include "core/layout/LayoutTestHelper.h"
 #include "core/layout/LayoutView.h"
 #include "core/page/FocusController.h"
 #include "core/paint/PaintLayer.h"
 #include "platform/graphics/GraphicsLayer.h"
 #include "platform/graphics/paint/RasterInvalidationTracking.h"

 namespace blink {

 class CaretDisplayItemClientTest : public RenderingTest {
  protected:
   void SetUp() override {
     RenderingTest::SetUp();
     EnableCompositing();
     Selection().SetCaretBlinkingSuspended(true);
   }

   const RasterInvalidationTracking* GetRasterInvalidationTracking() const {
     // TODO(wangxianzhu): Test SPv2.
     return GetLayoutView()
         .Layer()
         ->GraphicsLayerBacking()
         ->GetRasterInvalidationTracking();
   }

   FrameSelection& Selection() const {
     return GetDocument().View()->GetFrame().Selection();
   }

   const DisplayItemClient& GetCaretDisplayItemClient() const {
     return Selection().CaretDisplayItemClientForTesting();
   }

   const LayoutBlock* CaretLayoutBlock() const {
     return static_cast<const CaretDisplayItemClient&>(
                GetCaretDisplayItemClient())
         .layout_block_;
   }

   const LayoutBlock* PreviousCaretLayoutBlock() const {
     return static_cast<const CaretDisplayItemClient&>(
                GetCaretDisplayItemClient())
         .previous_layout_block_;
   }

   Text* AppendTextNode(const String& data) {
     Text* text = GetDocument().createTextNode(data);
     GetDocument().body()->AppendChild(text);
     return text;
   }

   Element* AppendBlock(const String& data) {
     Element* block = GetDocument().createElement("div");
     Text* text = GetDocument().createTextNode(data);
     block->AppendChild(text);
     GetDocument().body()->AppendChild(block);
     return block;
   }

   void UpdateAllLifecyclePhases() {
     // Partial lifecycle updates should not affect caret paint invalidation.
     GetDocument().View()->UpdateLifecycleToLayoutClean();
     GetDocument().View()->UpdateAllLifecyclePhases();
     // Partial lifecycle updates should not affect caret paint invalidation.
     GetDocument().View()->UpdateLifecycleToLayoutClean();
   }
 };

 TEST_F(CaretDisplayItemClientTest, CaretPaintInvalidation) {
   GetDocument().body()->setContentEditable("true", ASSERT_NO_EXCEPTION);
   GetDocument().GetPage()->GetFocusController().SetActive(true);
   GetDocument().GetPage()->GetFocusController().SetFocused(true);

   Text* text = AppendTextNode("Hello, World!");
   UpdateAllLifecyclePhases();
   const auto* block = ToLayoutBlock(GetDocument().body()->GetLayoutObject());

   // Focus the body. Should invalidate the new caret.
   GetDocument().View()->SetTracksPaintInvalidations(true);
   GetDocument().body()->focus();
   UpdateAllLifecyclePhases();
   EXPECT_TRUE(block->ShouldPaintCursorCaret());

   LayoutRect caret_visual_rect = GetCaretDisplayItemClient().VisualRect();
   EXPECT_EQ(1, caret_visual_rect.Width());
   EXPECT_EQ(block->Location(), caret_visual_rect.Location());

   const auto* raster_invalidations =
       &GetRasterInvalidationTracking()->invalidations;
   ASSERT_EQ(1u, raster_invalidations->size());
   EXPECT_EQ(EnclosingIntRect(caret_visual_rect),
             (*raster_invalidations)[0].rect);
   EXPECT_EQ(block, (*raster_invalidations)[0].client);
   EXPECT_EQ(kPaintInvalidationCaret, (*raster_invalidations)[0].reason);

   std::unique_ptr<JSONArray> object_invalidations =
       GetDocument().View()->TrackedObjectPaintInvalidationsAsJSON();
   ASSERT_EQ(1u, object_invalidations->size());
   String s;
   JSONObject::Cast(object_invalidations->at(0))->Get("object")->AsString(&s);
   EXPECT_EQ("Caret", s);
   GetDocument().View()->SetTracksPaintInvalidations(false);

   // Move the caret to the end of the text. Should invalidate both the old and
   // new carets.
   GetDocument().View()->SetTracksPaintInvalidations(true);
   Selection().SetSelection(
       SelectionInDOMTree::Builder().Collapse(Position(text, 5)).Build());
   UpdateAllLifecyclePhases();
   EXPECT_TRUE(block->ShouldPaintCursorCaret());

   LayoutRect new_caret_visual_rect = GetCaretDisplayItemClient().VisualRect();
   EXPECT_EQ(caret_visual_rect.Size(), new_caret_visual_rect.Size());
   EXPECT_EQ(caret_visual_rect.Y(), new_caret_visual_rect.Y());
   EXPECT_LT(caret_visual_rect.X(), new_caret_visual_rect.X());

   raster_invalidations = &GetRasterInvalidationTracking()->invalidations;
   ASSERT_EQ(2u, raster_invalidations->size());
   EXPECT_EQ(EnclosingIntRect(caret_visual_rect),
             (*raster_invalidations)[0].rect);
   EXPECT_EQ(block, (*raster_invalidations)[0].client);
   EXPECT_EQ(kPaintInvalidationCaret, (*raster_invalidations)[0].reason);
   EXPECT_EQ(EnclosingIntRect(new_caret_visual_rect),
             (*raster_invalidations)[1].rect);
   EXPECT_EQ(block, (*raster_invalidations)[1].client);
   EXPECT_EQ(kPaintInvalidationCaret, (*raster_invalidations)[1].reason);

   object_invalidations =
       GetDocument().View()->TrackedObjectPaintInvalidationsAsJSON();
   ASSERT_EQ(1u, object_invalidations->size());
   JSONObject::Cast(object_invalidations->at(0))->Get("object")->AsString(&s);
   EXPECT_EQ("Caret", s);
   GetDocument().View()->SetTracksPaintInvalidations(false);

   // Remove selection. Should invalidate the old caret.
   LayoutRect old_caret_visual_rect = new_caret_visual_rect;
   GetDocument().View()->SetTracksPaintInvalidations(true);
   Selection().SetSelection(SelectionInDOMTree());
   UpdateAllLifecyclePhases();
   EXPECT_FALSE(block->ShouldPaintCursorCaret());
   EXPECT_EQ(LayoutRect(), GetCaretDisplayItemClient().VisualRect());

   raster_invalidations = &GetRasterInvalidationTracking()->invalidations;
   ASSERT_EQ(1u, raster_invalidations->size());
   EXPECT_EQ(EnclosingIntRect(old_caret_visual_rect),
             (*raster_invalidations)[0].rect);
   EXPECT_EQ(block, (*raster_invalidations)[0].client);

   object_invalidations =
       GetDocument().View()->TrackedObjectPaintInvalidationsAsJSON();
   ASSERT_EQ(1u, object_invalidations->size());
   JSONObject::Cast(object_invalidations->at(0))->Get("object")->AsString(&s);
   EXPECT_EQ("Caret", s);
   GetDocument().View()->SetTracksPaintInvalidations(false);
 }

 TEST_F(CaretDisplayItemClientTest, CaretMovesBetweenBlocks) {
   GetDocument().body()->setContentEditable("true", ASSERT_NO_EXCEPTION);
   GetDocument().GetPage()->GetFocusController().SetActive(true);
   GetDocument().GetPage()->GetFocusController().SetFocused(true);
   auto* block_element1 = AppendBlock("Block1");
   auto* block_element2 = AppendBlock("Block2");
   UpdateAllLifecyclePhases();
   auto* block1 = ToLayoutBlock(block_element1->GetLayoutObject());
   auto* block2 = ToLayoutBlock(block_element2->GetLayoutObject());

   // Focus the body.
   GetDocument().body()->focus();
   UpdateAllLifecyclePhases();
   LayoutRect caret_visual_rect1 = GetCaretDisplayItemClient().VisualRect();
   EXPECT_EQ(1, caret_visual_rect1.Width());
   EXPECT_EQ(block1->VisualRect().Location(), caret_visual_rect1.Location());
   EXPECT_TRUE(block1->ShouldPaintCursorCaret());
   EXPECT_FALSE(block2->ShouldPaintCursorCaret());

   // Move the caret into block2. Should invalidate both the old and new carets.
   GetDocument().View()->SetTracksPaintInvalidations(true);
   Selection().SetSelection(SelectionInDOMTree::Builder()
                                .Collapse(Position(block_element2, 0))
                                .Build());
   UpdateAllLifecyclePhases();

   LayoutRect caret_visual_rect2 = GetCaretDisplayItemClient().VisualRect();
   EXPECT_EQ(1, caret_visual_rect2.Width());
   EXPECT_EQ(block2->VisualRect().Location(), caret_visual_rect2.Location());
   EXPECT_FALSE(block1->ShouldPaintCursorCaret());
   EXPECT_TRUE(block2->ShouldPaintCursorCaret());

   const auto* raster_invalidations =
       &GetRasterInvalidationTracking()->invalidations;
   ASSERT_EQ(2u, raster_invalidations->size());
   EXPECT_EQ(EnclosingIntRect(caret_visual_rect1),
             (*raster_invalidations)[0].rect);
   EXPECT_EQ(block1, (*raster_invalidations)[0].client);
   EXPECT_EQ(kPaintInvalidationCaret, (*raster_invalidations)[0].reason);
   EXPECT_EQ(EnclosingIntRect(caret_visual_rect2),
             (*raster_invalidations)[1].rect);
   EXPECT_EQ(block2, (*raster_invalidations)[1].client);
   EXPECT_EQ(kPaintInvalidationCaret, (*raster_invalidations)[1].reason);

   std::unique_ptr<JSONArray> object_invalidations =
       GetDocument().View()->TrackedObjectPaintInvalidationsAsJSON();
   ASSERT_EQ(2u, object_invalidations->size());
   GetDocument().View()->SetTracksPaintInvalidations(false);

   // Move the caret back into block1.
   GetDocument().View()->SetTracksPaintInvalidations(true);
   Selection().SetSelection(SelectionInDOMTree::Builder()
                                .Collapse(Position(block_element1, 0))
                                .Build());
   UpdateAllLifecyclePhases();

   EXPECT_EQ(caret_visual_rect1, GetCaretDisplayItemClient().VisualRect());
   EXPECT_TRUE(block1->ShouldPaintCursorCaret());
   EXPECT_FALSE(block2->ShouldPaintCursorCaret());

   raster_invalidations = &GetRasterInvalidationTracking()->invalidations;
   ASSERT_EQ(2u, raster_invalidations->size());
   EXPECT_EQ(EnclosingIntRect(caret_visual_rect1),
             (*raster_invalidations)[0].rect);
   EXPECT_EQ(block1, (*raster_invalidations)[0].client);
   EXPECT_EQ(kPaintInvalidationCaret, (*raster_invalidations)[0].reason);
   EXPECT_EQ(EnclosingIntRect(caret_visual_rect2),
             (*raster_invalidations)[1].rect);
   EXPECT_EQ(block2, (*raster_invalidations)[1].client);
   EXPECT_EQ(kPaintInvalidationCaret, (*raster_invalidations)[1].reason);

   object_invalidations =
       GetDocument().View()->TrackedObjectPaintInvalidationsAsJSON();
   ASSERT_EQ(2u, object_invalidations->size());
   GetDocument().View()->SetTracksPaintInvalidations(false);
 }

 TEST_F(CaretDisplayItemClientTest, UpdatePreviousLayoutBlock) {
   GetDocument().body()->setContentEditable("true", ASSERT_NO_EXCEPTION);
   GetDocument().GetPage()->GetFocusController().SetActive(true);
   GetDocument().GetPage()->GetFocusController().SetFocused(true);
   auto* block_element1 = AppendBlock("Block1");
   auto* block_element2 = AppendBlock("Block2");
   UpdateAllLifecyclePhases();
   auto* block1 = ToLayoutBlock(block_element1->GetLayoutObject());
   auto* block2 = ToLayoutBlock(block_element2->GetLayoutObject());

   // Set caret into block2.
   GetDocument().body()->focus();
   Selection().SetSelection(SelectionInDOMTree::Builder()
                                .Collapse(Position(block_element2, 0))
                                .Build());
   GetDocument().View()->UpdateLifecycleToLayoutClean();
   EXPECT_TRUE(block2->ShouldPaintCursorCaret());
   EXPECT_EQ(block2, CaretLayoutBlock());
   EXPECT_FALSE(block1->ShouldPaintCursorCaret());
   EXPECT_FALSE(PreviousCaretLayoutBlock());

   // Move caret into block1. Should set previousCaretLayoutBlock to block2.
   Selection().SetSelection(SelectionInDOMTree::Builder()
                                .Collapse(Position(block_element1, 0))
                                .Build());
   GetDocument().View()->UpdateLifecycleToLayoutClean();
   EXPECT_TRUE(block1->ShouldPaintCursorCaret());
   EXPECT_EQ(block1, CaretLayoutBlock());
   EXPECT_FALSE(block2->ShouldPaintCursorCaret());
   EXPECT_EQ(block2, PreviousCaretLayoutBlock());

   // Move caret into block2. Partial update should not change
   // previousCaretLayoutBlock.
   Selection().SetSelection(SelectionInDOMTree::Builder()
                                .Collapse(Position(block_element2, 0))
                                .Build());
   GetDocument().View()->UpdateLifecycleToLayoutClean();
   EXPECT_TRUE(block2->ShouldPaintCursorCaret());
   EXPECT_EQ(block2, CaretLayoutBlock());
   EXPECT_FALSE(block1->ShouldPaintCursorCaret());
   EXPECT_EQ(block2, PreviousCaretLayoutBlock());

   // Remove block2. Should clear caretLayoutBlock and previousCaretLayoutBlock.
   block_element2->parentNode()->RemoveChild(block_element2);
   EXPECT_FALSE(CaretLayoutBlock());
   EXPECT_FALSE(PreviousCaretLayoutBlock());

   // Set caret into block1.
   Selection().SetSelection(SelectionInDOMTree::Builder()
                                .Collapse(Position(block_element1, 0))
                                .Build());
   UpdateAllLifecyclePhases();
   // Remove selection.
   Selection().SetSelection(SelectionInDOMTree());
   GetDocument().View()->UpdateLifecycleToLayoutClean();
   EXPECT_EQ(block1, PreviousCaretLayoutBlock());
 }

 TEST_F(CaretDisplayItemClientTest, CaretHideMoveAndShow) {
   GetDocument().body()->setContentEditable("true", ASSERT_NO_EXCEPTION);
   GetDocument().GetPage()->GetFocusController().SetActive(true);
   GetDocument().GetPage()->GetFocusController().SetFocused(true);

   Text* text = AppendTextNode("Hello, World!");
   GetDocument().body()->focus();
   UpdateAllLifecyclePhases();
   const auto* block = ToLayoutBlock(GetDocument().body()->GetLayoutObject());

   LayoutRect caret_visual_rect = GetCaretDisplayItemClient().VisualRect();
   EXPECT_EQ(1, caret_visual_rect.Width());
   EXPECT_EQ(block->Location(), caret_visual_rect.Location());

   // Simulate that the blinking cursor becomes invisible.
   Selection().SetCaretVisible(false);
   // Move the caret to the end of the text.
   GetDocument().View()->SetTracksPaintInvalidations(true);
   Selection().SetSelection(
       SelectionInDOMTree::Builder().Collapse(Position(text, 5)).Build());
   // Simulate that the cursor blinking is restarted.
   Selection().SetCaretVisible(true);
   UpdateAllLifecyclePhases();

   LayoutRect new_caret_visual_rect = GetCaretDisplayItemClient().VisualRect();
   EXPECT_EQ(caret_visual_rect.Size(), new_caret_visual_rect.Size());
   EXPECT_EQ(caret_visual_rect.Y(), new_caret_visual_rect.Y());
   EXPECT_LT(caret_visual_rect.X(), new_caret_visual_rect.X());

   const auto& raster_invalidations =
       GetRasterInvalidationTracking()->invalidations;
   ASSERT_EQ(2u, raster_invalidations.size());
   EXPECT_EQ(EnclosingIntRect(caret_visual_rect), raster_invalidations[0].rect);
   EXPECT_EQ(block, raster_invalidations[0].client);
   EXPECT_EQ(kPaintInvalidationCaret, raster_invalidations[0].reason);
   EXPECT_EQ(EnclosingIntRect(new_caret_visual_rect),
             raster_invalidations[1].rect);
   EXPECT_EQ(block, raster_invalidations[1].client);
   EXPECT_EQ(kPaintInvalidationCaret, raster_invalidations[1].reason);

   auto object_invalidations =
       GetDocument().View()->TrackedObjectPaintInvalidationsAsJSON();
   ASSERT_EQ(1u, object_invalidations->size());
   String s;
   JSONObject::Cast(object_invalidations->at(0))->Get("object")->AsString(&s);
   EXPECT_EQ("Caret", s);
   GetDocument().View()->SetTracksPaintInvalidations(false);
 }

 TEST_F(CaretDisplayItemClientTest, CompositingChange) {
   EnableCompositing();
   SetBodyInnerHTML(
       "<style>"
       "  body { margin: 0 }"
       "  #container { position: absolute; top: 55px; left: 66px; }"
       "</style>"
       "<div id='container'>"
       "  <div id='editor' contenteditable style='padding: 50px'>ABCDE</div>"
       "</div>");

   GetDocument().GetPage()->GetFocusController().SetActive(true);
   GetDocument().GetPage()->GetFocusController().SetFocused(true);
   auto* container = GetDocument().getElementById("container");
   auto* editor = GetDocument().getElementById("editor");
   auto* editor_block = ToLayoutBlock(editor->GetLayoutObject());
   Selection().SetSelection(
       SelectionInDOMTree::Builder().Collapse(Position(editor, 0)).Build());
   UpdateAllLifecyclePhases();

   EXPECT_TRUE(editor_block->ShouldPaintCursorCaret());
   EXPECT_EQ(editor_block, CaretLayoutBlock());
   EXPECT_EQ(LayoutRect(116, 105, 1, 1),
             GetCaretDisplayItemClient().VisualRect());

   // Composite container.
   container->setAttribute(HTMLNames::styleAttr, "will-change: transform");
   UpdateAllLifecyclePhases();
   EXPECT_EQ(LayoutRect(50, 50, 1, 1), GetCaretDisplayItemClient().VisualRect());

   // Uncomposite container.
   container->setAttribute(HTMLNames::styleAttr, "");
   UpdateAllLifecyclePhases();
   EXPECT_EQ(LayoutRect(116, 105, 1, 1),
             GetCaretDisplayItemClient().VisualRect());
 }

 }  // namespace blink
	// Copyright 2017 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.

	#include "core/editing/CaretDisplayItemClient.h"

	#include "core/HTMLNames.h"
	#include "core/editing/FrameSelection.h"
	#include "core/frame/FrameView.h"
	#include "core/layout/LayoutTestHelper.h"
	#include "core/layout/LayoutView.h"
	#include "core/page/FocusController.h"
	#include "core/paint/PaintLayer.h"
	#include "platform/graphics/GraphicsLayer.h"
	#include "platform/graphics/paint/RasterInvalidationTracking.h"

	namespace blink {

	class CaretDisplayItemClientTest : public RenderingTest {
	protected:
	void SetUp() override {
	RenderingTest::SetUp();
	EnableCompositing();
	Selection().SetCaretBlinkingSuspended(true);
	}

	const RasterInvalidationTracking* GetRasterInvalidationTracking() const {
	// TODO(wangxianzhu): Test SPv2.
	return GetLayoutView()
	.Layer()
	->GraphicsLayerBacking()
	->GetRasterInvalidationTracking();
	}

	FrameSelection& Selection() const {
	return GetDocument().View()->GetFrame().Selection();
	}

	const DisplayItemClient& GetCaretDisplayItemClient() const {
	return Selection().CaretDisplayItemClientForTesting();
	}

	const LayoutBlock* CaretLayoutBlock() const {
	return static_cast<const CaretDisplayItemClient&>(
	GetCaretDisplayItemClient())
	.layout_block_;
	}

	const LayoutBlock* PreviousCaretLayoutBlock() const {
	return static_cast<const CaretDisplayItemClient&>(
	GetCaretDisplayItemClient())
	.previous_layout_block_;
	}

	Text* AppendTextNode(const String& data) {
	Text* text = GetDocument().createTextNode(data);
	GetDocument().body()->AppendChild(text);
	return text;
	}

	Element* AppendBlock(const String& data) {
	Element* block = GetDocument().createElement("div");
	Text* text = GetDocument().createTextNode(data);
	block->AppendChild(text);
	GetDocument().body()->AppendChild(block);
	return block;
	}

	void UpdateAllLifecyclePhases() {
	// Partial lifecycle updates should not affect caret paint invalidation.
	GetDocument().View()->UpdateLifecycleToLayoutClean();
	GetDocument().View()->UpdateAllLifecyclePhases();
	// Partial lifecycle updates should not affect caret paint invalidation.
	GetDocument().View()->UpdateLifecycleToLayoutClean();
	}
	};

	TEST_F(CaretDisplayItemClientTest, CaretPaintInvalidation) {
	GetDocument().body()->setContentEditable("true", ASSERT_NO_EXCEPTION);
	GetDocument().GetPage()->GetFocusController().SetActive(true);
	GetDocument().GetPage()->GetFocusController().SetFocused(true);

	Text* text = AppendTextNode("Hello, World!");
	UpdateAllLifecyclePhases();
	const auto* block = ToLayoutBlock(GetDocument().body()->GetLayoutObject());

	// Focus the body. Should invalidate the new caret.
	GetDocument().View()->SetTracksPaintInvalidations(true);
	GetDocument().body()->focus();
	UpdateAllLifecyclePhases();
	EXPECT_TRUE(block->ShouldPaintCursorCaret());

	LayoutRect caret_visual_rect = GetCaretDisplayItemClient().VisualRect();
	EXPECT_EQ(1, caret_visual_rect.Width());
	EXPECT_EQ(block->Location(), caret_visual_rect.Location());

	const auto* raster_invalidations =
	&GetRasterInvalidationTracking()->invalidations;
	ASSERT_EQ(1u, raster_invalidations->size());
	EXPECT_EQ(EnclosingIntRect(caret_visual_rect),
	(*raster_invalidations)[0].rect);
	EXPECT_EQ(block, (*raster_invalidations)[0].client);
	EXPECT_EQ(kPaintInvalidationCaret, (*raster_invalidations)[0].reason);

	std::unique_ptr<JSONArray> object_invalidations =
	GetDocument().View()->TrackedObjectPaintInvalidationsAsJSON();
	ASSERT_EQ(1u, object_invalidations->size());
	String s;
	JSONObject::Cast(object_invalidations->at(0))->Get("object")->AsString(&s);
	EXPECT_EQ("Caret", s);
	GetDocument().View()->SetTracksPaintInvalidations(false);

	// Move the caret to the end of the text. Should invalidate both the old and
	// new carets.
	GetDocument().View()->SetTracksPaintInvalidations(true);
	Selection().SetSelection(
	SelectionInDOMTree::Builder().Collapse(Position(text, 5)).Build());
	UpdateAllLifecyclePhases();
	EXPECT_TRUE(block->ShouldPaintCursorCaret());

	LayoutRect new_caret_visual_rect = GetCaretDisplayItemClient().VisualRect();
	EXPECT_EQ(caret_visual_rect.Size(), new_caret_visual_rect.Size());
	EXPECT_EQ(caret_visual_rect.Y(), new_caret_visual_rect.Y());
	EXPECT_LT(caret_visual_rect.X(), new_caret_visual_rect.X());

	raster_invalidations = &GetRasterInvalidationTracking()->invalidations;
	ASSERT_EQ(2u, raster_invalidations->size());
	EXPECT_EQ(EnclosingIntRect(caret_visual_rect),
	(*raster_invalidations)[0].rect);
	EXPECT_EQ(block, (*raster_invalidations)[0].client);
	EXPECT_EQ(kPaintInvalidationCaret, (*raster_invalidations)[0].reason);
	EXPECT_EQ(EnclosingIntRect(new_caret_visual_rect),
	(*raster_invalidations)[1].rect);
	EXPECT_EQ(block, (*raster_invalidations)[1].client);
	EXPECT_EQ(kPaintInvalidationCaret, (*raster_invalidations)[1].reason);

	object_invalidations =
	GetDocument().View()->TrackedObjectPaintInvalidationsAsJSON();
	ASSERT_EQ(1u, object_invalidations->size());
	JSONObject::Cast(object_invalidations->at(0))->Get("object")->AsString(&s);
	EXPECT_EQ("Caret", s);
	GetDocument().View()->SetTracksPaintInvalidations(false);

	// Remove selection. Should invalidate the old caret.
	LayoutRect old_caret_visual_rect = new_caret_visual_rect;
	GetDocument().View()->SetTracksPaintInvalidations(true);
	Selection().SetSelection(SelectionInDOMTree());
	UpdateAllLifecyclePhases();
	EXPECT_FALSE(block->ShouldPaintCursorCaret());
	EXPECT_EQ(LayoutRect(), GetCaretDisplayItemClient().VisualRect());

	raster_invalidations = &GetRasterInvalidationTracking()->invalidations;
	ASSERT_EQ(1u, raster_invalidations->size());
	EXPECT_EQ(EnclosingIntRect(old_caret_visual_rect),
	(*raster_invalidations)[0].rect);
	EXPECT_EQ(block, (*raster_invalidations)[0].client);

	object_invalidations =
	GetDocument().View()->TrackedObjectPaintInvalidationsAsJSON();
	ASSERT_EQ(1u, object_invalidations->size());
	JSONObject::Cast(object_invalidations->at(0))->Get("object")->AsString(&s);
	EXPECT_EQ("Caret", s);
	GetDocument().View()->SetTracksPaintInvalidations(false);
	}

	TEST_F(CaretDisplayItemClientTest, CaretMovesBetweenBlocks) {
	GetDocument().body()->setContentEditable("true", ASSERT_NO_EXCEPTION);
	GetDocument().GetPage()->GetFocusController().SetActive(true);
	GetDocument().GetPage()->GetFocusController().SetFocused(true);
	auto* block_element1 = AppendBlock("Block1");
	auto* block_element2 = AppendBlock("Block2");
	UpdateAllLifecyclePhases();
	auto* block1 = ToLayoutBlock(block_element1->GetLayoutObject());
	auto* block2 = ToLayoutBlock(block_element2->GetLayoutObject());

	// Focus the body.
	GetDocument().body()->focus();
	UpdateAllLifecyclePhases();
	LayoutRect caret_visual_rect1 = GetCaretDisplayItemClient().VisualRect();
	EXPECT_EQ(1, caret_visual_rect1.Width());
	EXPECT_EQ(block1->VisualRect().Location(), caret_visual_rect1.Location());
	EXPECT_TRUE(block1->ShouldPaintCursorCaret());
	EXPECT_FALSE(block2->ShouldPaintCursorCaret());

	// Move the caret into block2. Should invalidate both the old and new carets.
	GetDocument().View()->SetTracksPaintInvalidations(true);
	Selection().SetSelection(SelectionInDOMTree::Builder()
	.Collapse(Position(block_element2, 0))
	.Build());
	UpdateAllLifecyclePhases();

	LayoutRect caret_visual_rect2 = GetCaretDisplayItemClient().VisualRect();
	EXPECT_EQ(1, caret_visual_rect2.Width());
	EXPECT_EQ(block2->VisualRect().Location(), caret_visual_rect2.Location());
	EXPECT_FALSE(block1->ShouldPaintCursorCaret());
	EXPECT_TRUE(block2->ShouldPaintCursorCaret());

	const auto* raster_invalidations =
	&GetRasterInvalidationTracking()->invalidations;
	ASSERT_EQ(2u, raster_invalidations->size());
	EXPECT_EQ(EnclosingIntRect(caret_visual_rect1),
	(*raster_invalidations)[0].rect);
	EXPECT_EQ(block1, (*raster_invalidations)[0].client);
	EXPECT_EQ(kPaintInvalidationCaret, (*raster_invalidations)[0].reason);
	EXPECT_EQ(EnclosingIntRect(caret_visual_rect2),
	(*raster_invalidations)[1].rect);
	EXPECT_EQ(block2, (*raster_invalidations)[1].client);
	EXPECT_EQ(kPaintInvalidationCaret, (*raster_invalidations)[1].reason);

	std::unique_ptr<JSONArray> object_invalidations =
	GetDocument().View()->TrackedObjectPaintInvalidationsAsJSON();
	ASSERT_EQ(2u, object_invalidations->size());
	GetDocument().View()->SetTracksPaintInvalidations(false);

	// Move the caret back into block1.
	GetDocument().View()->SetTracksPaintInvalidations(true);
	Selection().SetSelection(SelectionInDOMTree::Builder()
	.Collapse(Position(block_element1, 0))
	.Build());
	UpdateAllLifecyclePhases();

	EXPECT_EQ(caret_visual_rect1, GetCaretDisplayItemClient().VisualRect());
	EXPECT_TRUE(block1->ShouldPaintCursorCaret());
	EXPECT_FALSE(block2->ShouldPaintCursorCaret());

	raster_invalidations = &GetRasterInvalidationTracking()->invalidations;
	ASSERT_EQ(2u, raster_invalidations->size());
	EXPECT_EQ(EnclosingIntRect(caret_visual_rect1),
	(*raster_invalidations)[0].rect);
	EXPECT_EQ(block1, (*raster_invalidations)[0].client);
	EXPECT_EQ(kPaintInvalidationCaret, (*raster_invalidations)[0].reason);
	EXPECT_EQ(EnclosingIntRect(caret_visual_rect2),
	(*raster_invalidations)[1].rect);
	EXPECT_EQ(block2, (*raster_invalidations)[1].client);
	EXPECT_EQ(kPaintInvalidationCaret, (*raster_invalidations)[1].reason);

	object_invalidations =
	GetDocument().View()->TrackedObjectPaintInvalidationsAsJSON();
	ASSERT_EQ(2u, object_invalidations->size());
	GetDocument().View()->SetTracksPaintInvalidations(false);
	}

	TEST_F(CaretDisplayItemClientTest, UpdatePreviousLayoutBlock) {
	GetDocument().body()->setContentEditable("true", ASSERT_NO_EXCEPTION);
	GetDocument().GetPage()->GetFocusController().SetActive(true);
	GetDocument().GetPage()->GetFocusController().SetFocused(true);
	auto* block_element1 = AppendBlock("Block1");
	auto* block_element2 = AppendBlock("Block2");
	UpdateAllLifecyclePhases();
	auto* block1 = ToLayoutBlock(block_element1->GetLayoutObject());
	auto* block2 = ToLayoutBlock(block_element2->GetLayoutObject());

	// Set caret into block2.
	GetDocument().body()->focus();
	Selection().SetSelection(SelectionInDOMTree::Builder()
	.Collapse(Position(block_element2, 0))
	.Build());
	GetDocument().View()->UpdateLifecycleToLayoutClean();
	EXPECT_TRUE(block2->ShouldPaintCursorCaret());
	EXPECT_EQ(block2, CaretLayoutBlock());
	EXPECT_FALSE(block1->ShouldPaintCursorCaret());
	EXPECT_FALSE(PreviousCaretLayoutBlock());

	// Move caret into block1. Should set previousCaretLayoutBlock to block2.
	Selection().SetSelection(SelectionInDOMTree::Builder()
	.Collapse(Position(block_element1, 0))
	.Build());
	GetDocument().View()->UpdateLifecycleToLayoutClean();
	EXPECT_TRUE(block1->ShouldPaintCursorCaret());
	EXPECT_EQ(block1, CaretLayoutBlock());
	EXPECT_FALSE(block2->ShouldPaintCursorCaret());
	EXPECT_EQ(block2, PreviousCaretLayoutBlock());

	// Move caret into block2. Partial update should not change
	// previousCaretLayoutBlock.
	Selection().SetSelection(SelectionInDOMTree::Builder()
	.Collapse(Position(block_element2, 0))
	.Build());
	GetDocument().View()->UpdateLifecycleToLayoutClean();
	EXPECT_TRUE(block2->ShouldPaintCursorCaret());
	EXPECT_EQ(block2, CaretLayoutBlock());
	EXPECT_FALSE(block1->ShouldPaintCursorCaret());
	EXPECT_EQ(block2, PreviousCaretLayoutBlock());

	// Remove block2. Should clear caretLayoutBlock and previousCaretLayoutBlock.
	block_element2->parentNode()->RemoveChild(block_element2);
	EXPECT_FALSE(CaretLayoutBlock());
	EXPECT_FALSE(PreviousCaretLayoutBlock());

	// Set caret into block1.
	Selection().SetSelection(SelectionInDOMTree::Builder()
	.Collapse(Position(block_element1, 0))
	.Build());
	UpdateAllLifecyclePhases();
	// Remove selection.
	Selection().SetSelection(SelectionInDOMTree());
	GetDocument().View()->UpdateLifecycleToLayoutClean();
	EXPECT_EQ(block1, PreviousCaretLayoutBlock());
	}

	TEST_F(CaretDisplayItemClientTest, CaretHideMoveAndShow) {
	GetDocument().body()->setContentEditable("true", ASSERT_NO_EXCEPTION);
	GetDocument().GetPage()->GetFocusController().SetActive(true);
	GetDocument().GetPage()->GetFocusController().SetFocused(true);

	Text* text = AppendTextNode("Hello, World!");
	GetDocument().body()->focus();
	UpdateAllLifecyclePhases();
	const auto* block = ToLayoutBlock(GetDocument().body()->GetLayoutObject());

	LayoutRect caret_visual_rect = GetCaretDisplayItemClient().VisualRect();
	EXPECT_EQ(1, caret_visual_rect.Width());
	EXPECT_EQ(block->Location(), caret_visual_rect.Location());

	// Simulate that the blinking cursor becomes invisible.
	Selection().SetCaretVisible(false);
	// Move the caret to the end of the text.
	GetDocument().View()->SetTracksPaintInvalidations(true);
	Selection().SetSelection(
	SelectionInDOMTree::Builder().Collapse(Position(text, 5)).Build());
	// Simulate that the cursor blinking is restarted.
	Selection().SetCaretVisible(true);
	UpdateAllLifecyclePhases();

	LayoutRect new_caret_visual_rect = GetCaretDisplayItemClient().VisualRect();
	EXPECT_EQ(caret_visual_rect.Size(), new_caret_visual_rect.Size());
	EXPECT_EQ(caret_visual_rect.Y(), new_caret_visual_rect.Y());
	EXPECT_LT(caret_visual_rect.X(), new_caret_visual_rect.X());

	const auto& raster_invalidations =
	GetRasterInvalidationTracking()->invalidations;
	ASSERT_EQ(2u, raster_invalidations.size());
	EXPECT_EQ(EnclosingIntRect(caret_visual_rect), raster_invalidations[0].rect);
	EXPECT_EQ(block, raster_invalidations[0].client);
	EXPECT_EQ(kPaintInvalidationCaret, raster_invalidations[0].reason);
	EXPECT_EQ(EnclosingIntRect(new_caret_visual_rect),
	raster_invalidations[1].rect);
	EXPECT_EQ(block, raster_invalidations[1].client);
	EXPECT_EQ(kPaintInvalidationCaret, raster_invalidations[1].reason);

	auto object_invalidations =
	GetDocument().View()->TrackedObjectPaintInvalidationsAsJSON();
	ASSERT_EQ(1u, object_invalidations->size());
	String s;
	JSONObject::Cast(object_invalidations->at(0))->Get("object")->AsString(&s);
	EXPECT_EQ("Caret", s);
	GetDocument().View()->SetTracksPaintInvalidations(false);
	}

	TEST_F(CaretDisplayItemClientTest, CompositingChange) {
	EnableCompositing();
	SetBodyInnerHTML(
	"<style>"
	" body { margin: 0 }"
	" #container { position: absolute; top: 55px; left: 66px; }"
	"</style>"
	"<div id='container'>"
	" <div id='editor' contenteditable style='padding: 50px'>ABCDE</div>"
	"</div>");

	GetDocument().GetPage()->GetFocusController().SetActive(true);
	GetDocument().GetPage()->GetFocusController().SetFocused(true);
	auto* container = GetDocument().getElementById("container");
	auto* editor = GetDocument().getElementById("editor");
	auto* editor_block = ToLayoutBlock(editor->GetLayoutObject());
	Selection().SetSelection(
	SelectionInDOMTree::Builder().Collapse(Position(editor, 0)).Build());
	UpdateAllLifecyclePhases();

	EXPECT_TRUE(editor_block->ShouldPaintCursorCaret());
	EXPECT_EQ(editor_block, CaretLayoutBlock());
	EXPECT_EQ(LayoutRect(116, 105, 1, 1),
	GetCaretDisplayItemClient().VisualRect());

	// Composite container.
	container->setAttribute(HTMLNames::styleAttr, "will-change: transform");
	UpdateAllLifecyclePhases();
	EXPECT_EQ(LayoutRect(50, 50, 1, 1), GetCaretDisplayItemClient().VisualRect());

	// Uncomposite container.
	container->setAttribute(HTMLNames::styleAttr, "");
	UpdateAllLifecyclePhases();
	EXPECT_EQ(LayoutRect(116, 105, 1, 1),
	GetCaretDisplayItemClient().VisualRect());
	}

	} // namespace blink