Move drag related functionality out of LocalFrame

third_party/WebKit/Source/core/frame/LocalFrameTest.cpp

-// Copyright 2016 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/frame/LocalFrame.h"
-
-#include "core/editing/FrameSelection.h"
-#include "core/frame/LocalFrameView.h"
-#include "core/frame/PerformanceMonitor.h"
-#include "core/frame/VisualViewport.h"
-#include "core/html/HTMLElement.h"
-#include "core/layout/LayoutObject.h"
-#include "core/testing/DummyPageHolder.h"
-#include "core/timing/Performance.h"
-#include "platform/DragImage.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-namespace blink {
-
-class LocalFrameTest : public ::testing::Test {
- protected:
-  LocalFrameTest() = default;
-  ~LocalFrameTest() override = default;
-
-  Document& GetDocument() const { return dummy_page_holder_->GetDocument(); }
-  LocalFrame& GetFrame() const { return *GetDocument().GetFrame(); }
-  Performance* GetPerformance() const { return performance_; }
-
-  void SetBodyContent(const std::string& body_content) {
-    GetDocument().body()->setInnerHTML(String::FromUTF8(body_content.c_str()));
-    UpdateAllLifecyclePhases();
-  }
-
-  void UpdateAllLifecyclePhases() {
-    GetDocument().View()->UpdateAllLifecyclePhases();
-  }
-
- private:
-  void SetUp() override {
-    dummy_page_holder_ = DummyPageHolder::Create(IntSize(800, 600));
-    performance_ = Performance::Create(&GetFrame());
-  }
-
-  std::unique_ptr<DummyPageHolder> dummy_page_holder_;
-  Persistent<Performance> performance_;
-};
-
-TEST_F(LocalFrameTest, nodeImage) {
-  SetBodyContent(
-      "<style>"
-      "#sample { width: 100px; height: 100px; }"
-      "</style>"
-      "<div id=sample></div>");
-  Element* sample = GetDocument().getElementById("sample");
-  const std::unique_ptr<DragImage> image = GetFrame().NodeImage(*sample);
-  EXPECT_EQ(IntSize(100, 100), image->Size());
-}
-
-TEST_F(LocalFrameTest, nodeImageWithNestedElement) {
-  SetBodyContent(
-      "<style>"
-      "div { -webkit-user-drag: element }"
-      "span:-webkit-drag { color: #0F0 }"
-      "</style>"
-      "<div id=sample><span>Green when dragged</span></div>");
-  Element* sample = GetDocument().getElementById("sample");
-  const std::unique_ptr<DragImage> image = GetFrame().NodeImage(*sample);
-  EXPECT_EQ(
-      Color(0, 255, 0),
-      sample->firstChild()->GetLayoutObject()->ResolveColor(CSSPropertyColor))
-      << "Descendants node should have :-webkit-drag.";
-}
-
-TEST_F(LocalFrameTest, nodeImageWithPsuedoClassWebKitDrag) {
-  SetBodyContent(
-      "<style>"
-      "#sample { width: 100px; height: 100px; }"
-      "#sample:-webkit-drag { width: 200px; height: 200px; }"
-      "</style>"
-      "<div id=sample></div>");
-  Element* sample = GetDocument().getElementById("sample");
-  const std::unique_ptr<DragImage> image = GetFrame().NodeImage(*sample);
-  EXPECT_EQ(IntSize(200, 200), image->Size())
-      << ":-webkit-drag should affect dragged image.";
-}
-
-TEST_F(LocalFrameTest, nodeImageWithoutDraggedLayoutObject) {
-  SetBodyContent(
-      "<style>"
-      "#sample { width: 100px; height: 100px; }"
-      "#sample:-webkit-drag { display:none }"
-      "</style>"
-      "<div id=sample></div>");
-  Element* sample = GetDocument().getElementById("sample");
-  const std::unique_ptr<DragImage> image = GetFrame().NodeImage(*sample);
-  EXPECT_EQ(nullptr, image.get()) << ":-webkit-drag blows away layout object";
-}
-
-TEST_F(LocalFrameTest, nodeImageWithChangingLayoutObject) {
-  SetBodyContent(
-      "<style>"
-      "#sample { color: blue; }"
-      "#sample:-webkit-drag { display: inline-block; color: red; }"
-      "</style>"
-      "<span id=sample>foo</span>");
-  Element* sample = GetDocument().getElementById("sample");
-  UpdateAllLifecyclePhases();
-  LayoutObject* before_layout_object = sample->GetLayoutObject();
-  const std::unique_ptr<DragImage> image = GetFrame().NodeImage(*sample);
-
-  EXPECT_TRUE(sample->GetLayoutObject() != before_layout_object)
-      << ":-webkit-drag causes sample to have different layout object.";
-  EXPECT_EQ(Color(255, 0, 0),
-            sample->GetLayoutObject()->ResolveColor(CSSPropertyColor))
-      << "#sample has :-webkit-drag.";
-
-  // Layout w/o :-webkit-drag
-  UpdateAllLifecyclePhases();
-
-  EXPECT_EQ(Color(0, 0, 255),
-            sample->GetLayoutObject()->ResolveColor(CSSPropertyColor))
-      << "#sample doesn't have :-webkit-drag.";
-}
-
-TEST_F(LocalFrameTest, dragImageForSelectionUsesPageScaleFactor) {
-  SetBodyContent(
-      "<div>Hello world! This tests that the bitmap for drag image is scaled "
-      "by page scale factor</div>");
-  GetFrame().GetPage()->GetVisualViewport().SetScale(1);
-  GetFrame().Selection().SelectAll();
-  UpdateAllLifecyclePhases();
-  const std::unique_ptr<DragImage> image1(
-      GetFrame().DragImageForSelection(0.75f));
-  GetFrame().GetPage()->GetVisualViewport().SetScale(2);
-  GetFrame().Selection().SelectAll();
-  UpdateAllLifecyclePhases();
-  const std::unique_ptr<DragImage> image2(
-      GetFrame().DragImageForSelection(0.75f));
-
-  EXPECT_GT(image1->Size().Width(), 0);
-  EXPECT_GT(image1->Size().Height(), 0);
-  EXPECT_EQ(image1->Size().Width() * 2, image2->Size().Width());
-  EXPECT_EQ(image1->Size().Height() * 2, image2->Size().Height());
-}
-
-}  // namespace blink