third_party/blink/renderer/core/page/autoscroll_controller_test.cc - 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 "third_party/blink/renderer/core/page/autoscroll_controller.h"

 #include "testing/gtest/include/gtest/gtest.h"
 #include "third_party/blink/renderer/core/css_value_keywords.h"
 #include "third_party/blink/renderer/core/dom/element.h"
 #include "third_party/blink/renderer/core/input/event_handler.h"
 #include "third_party/blink/renderer/core/layout/layout_view.h"
 #include "third_party/blink/renderer/core/page/page.h"
 #include "third_party/blink/renderer/core/testing/sim/sim_request.h"
 #include "third_party/blink/renderer/core/testing/sim/sim_test.h"

 namespace blink {

 class AutoscrollControllerTest : public SimTest {
  public:
   AutoscrollController& GetAutoscrollController() {
     return WebView().GetPage()->GetAutoscrollController();
   }
 };

 // Ensure Autoscroll not crash by layout called in UpdateSelectionForMouseDrag.
 TEST_F(AutoscrollControllerTest,
        CrashWhenLayoutStopAnimationBeforeScheduleAnimation) {
   WebView().MainFrameWidget()->Resize(WebSize(800, 600));
   WebView().SetBaseBackgroundColorOverride(SK_ColorTRANSPARENT);
   SimRequest request("https://example.com/test.html", "text/html");
   LoadURL("https://example.com/test.html");
   request.Complete(R"HTML(
     <!DOCTYPE html>
     <style>
       #scrollable {
         overflow: auto;
         width: 10px;
         height: 10px;
       }
     </style>
     <div id='scrollable'>
       <p id='p'>Some text here for selection autoscroll.</p>
       <p>Some text here for selection autoscroll.</p>
       <p>Some text here for selection autoscroll.</p>
       <p>Some text here for selection autoscroll.</p>
       <p>Some text here for selection autoscroll.</p>
       <p>Some text here for selection autoscroll.</p>
       <p>Some text here for selection autoscroll.</p>
       <p>Some text here for selection autoscroll.</p>
     </div>
   )HTML");

   Compositor().BeginFrame();

   AutoscrollController& controller = GetAutoscrollController();
   Document& document = GetDocument();

   Element* scrollable = document.getElementById("scrollable");
   DCHECK(scrollable);
   DCHECK(scrollable->GetLayoutObject());

   WebMouseEvent event(WebInputEvent::Type::kMouseDown, gfx::PointF(5, 5),
                       gfx::PointF(5, 5), WebPointerProperties::Button::kLeft, 0,
                       WebInputEvent::Modifiers::kLeftButtonDown,
                       base::TimeTicks::Now());
   event.SetFrameScale(1);

   GetDocument().GetFrame()->GetEventHandler().HandleMousePressEvent(event);

   controller.StartAutoscrollForSelection(scrollable->GetLayoutObject());

   DCHECK(controller.IsAutoscrolling());

   // Hide scrollable here will cause UpdateSelectionForMouseDrag stop animation.
   scrollable->SetInlineStyleProperty(CSSPropertyID::kDisplay,
                                      CSSValueID::kNone);

   // BeginFrame will call AutoscrollController::Animate.
   Compositor().BeginFrame();

   EXPECT_FALSE(controller.IsAutoscrolling());
 }

 // Ensure that autoscrolling continues when the MouseLeave event is fired.
 TEST_F(AutoscrollControllerTest, ContinueAutoscrollAfterMouseLeaveEvent) {
   WebView().MainFrameWidget()->Resize(WebSize(800, 600));
   SimRequest request("https://example.com/test.html", "text/html");
   LoadURL("https://example.com/test.html");
   request.Complete(R"HTML(
     <!DOCTYPE html>
     <style>
       #scrollable {
         width: 820px;
         height: 620px;
       }
     </style>
     <div id='scrollable'></div>
   )HTML");

   Compositor().BeginFrame();

   AutoscrollController& controller = GetAutoscrollController();

   EXPECT_FALSE(controller.IsAutoscrolling());

   LocalFrame* frame = GetDocument().GetFrame();
   Node* document_node = GetDocument().documentElement();
   controller.StartMiddleClickAutoscroll(
       frame, document_node->parentNode()->GetLayoutBox(), FloatPoint(),
       FloatPoint());

   EXPECT_TRUE(controller.IsAutoscrolling());

   WebMouseEvent mouse_leave_event(WebInputEvent::Type::kMouseLeave,
                                   WebInputEvent::kNoModifiers,
                                   base::TimeTicks::Now());
   mouse_leave_event.SetFrameScale(1);

   frame->GetEventHandler().HandleMouseLeaveEvent(mouse_leave_event);

   EXPECT_TRUE(controller.IsAutoscrolling());
 }

 // Ensure that autoscrolling stops when scrolling is no longer available.
 TEST_F(AutoscrollControllerTest, StopAutoscrollOnResize) {
   WebView().MainFrameWidget()->Resize(WebSize(800, 600));
   SimRequest request("https://example.com/test.html", "text/html");
   LoadURL("https://example.com/test.html");
   request.Complete(R"HTML(
     <!DOCTYPE html>
     <style>
       #scrollable {
         width: 820px;
         height: 620px;
       }
     </style>
     <div id='scrollable'></div>
   )HTML");

   Compositor().BeginFrame();

   AutoscrollController& controller = GetAutoscrollController();

   EXPECT_FALSE(controller.IsAutoscrolling());

   LocalFrame* frame = GetDocument().GetFrame();
   controller.StartMiddleClickAutoscroll(frame, GetDocument().GetLayoutView(),
                                         FloatPoint(), FloatPoint());

   EXPECT_TRUE(controller.IsAutoscrolling());

   // Confirm that it correctly stops autoscrolling when scrolling is no longer
   // possible
   WebView().MainFrameWidget()->Resize(WebSize(840, 640));

   WebMouseEvent mouse_move_event(WebInputEvent::Type::kMouseMove,
                                  WebInputEvent::kNoModifiers,
                                  base::TimeTicks::Now());

   frame->GetEventHandler().HandleMouseMoveEvent(
       mouse_move_event, Vector<WebMouseEvent>(), Vector<WebMouseEvent>());

   EXPECT_FALSE(controller.IsAutoscrolling());

   // Confirm that autoscrolling doesn't restart when scrolling is available
   // again
   WebView().MainFrameWidget()->Resize(WebSize(800, 600));

   WebMouseEvent mouse_move_event2(WebInputEvent::Type::kMouseMove,
                                   WebInputEvent::kNoModifiers,
                                   base::TimeTicks::Now());

   frame->GetEventHandler().HandleMouseMoveEvent(
       mouse_move_event2, Vector<WebMouseEvent>(), Vector<WebMouseEvent>());

   EXPECT_FALSE(controller.IsAutoscrolling());

   // And finally confirm that autoscrolling can start again.
   controller.StartMiddleClickAutoscroll(frame, GetDocument().GetLayoutView(),
                                         FloatPoint(), FloatPoint());

   EXPECT_TRUE(controller.IsAutoscrolling());
 }

 }  // 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 "third_party/blink/renderer/core/page/autoscroll_controller.h"

	#include "testing/gtest/include/gtest/gtest.h"
	#include "third_party/blink/renderer/core/css_value_keywords.h"
	#include "third_party/blink/renderer/core/dom/element.h"
	#include "third_party/blink/renderer/core/input/event_handler.h"
	#include "third_party/blink/renderer/core/layout/layout_view.h"
	#include "third_party/blink/renderer/core/page/page.h"
	#include "third_party/blink/renderer/core/testing/sim/sim_request.h"
	#include "third_party/blink/renderer/core/testing/sim/sim_test.h"

	namespace blink {

	class AutoscrollControllerTest : public SimTest {
	public:
	AutoscrollController& GetAutoscrollController() {
	return WebView().GetPage()->GetAutoscrollController();
	}
	};

	// Ensure Autoscroll not crash by layout called in UpdateSelectionForMouseDrag.
	TEST_F(AutoscrollControllerTest,
	CrashWhenLayoutStopAnimationBeforeScheduleAnimation) {
	WebView().MainFrameWidget()->Resize(WebSize(800, 600));
	WebView().SetBaseBackgroundColorOverride(SK_ColorTRANSPARENT);
	SimRequest request("https://example.com/test.html", "text/html");
	LoadURL("https://example.com/test.html");
	request.Complete(R"HTML(
	<!DOCTYPE html>
	<style>
	#scrollable {
	overflow: auto;
	width: 10px;
	height: 10px;
	}
	</style>
	<div id='scrollable'>
	<p id='p'>Some text here for selection autoscroll.</p>
	<p>Some text here for selection autoscroll.</p>
	<p>Some text here for selection autoscroll.</p>
	<p>Some text here for selection autoscroll.</p>
	<p>Some text here for selection autoscroll.</p>
	<p>Some text here for selection autoscroll.</p>
	<p>Some text here for selection autoscroll.</p>
	<p>Some text here for selection autoscroll.</p>
	</div>
	)HTML");

	Compositor().BeginFrame();

	AutoscrollController& controller = GetAutoscrollController();
	Document& document = GetDocument();

	Element* scrollable = document.getElementById("scrollable");
	DCHECK(scrollable);
	DCHECK(scrollable->GetLayoutObject());

	WebMouseEvent event(WebInputEvent::Type::kMouseDown, gfx::PointF(5, 5),
	gfx::PointF(5, 5), WebPointerProperties::Button::kLeft, 0,
	WebInputEvent::Modifiers::kLeftButtonDown,
	base::TimeTicks::Now());
	event.SetFrameScale(1);

	GetDocument().GetFrame()->GetEventHandler().HandleMousePressEvent(event);

	controller.StartAutoscrollForSelection(scrollable->GetLayoutObject());

	DCHECK(controller.IsAutoscrolling());

	// Hide scrollable here will cause UpdateSelectionForMouseDrag stop animation.
	scrollable->SetInlineStyleProperty(CSSPropertyID::kDisplay,
	CSSValueID::kNone);

	// BeginFrame will call AutoscrollController::Animate.
	Compositor().BeginFrame();

	EXPECT_FALSE(controller.IsAutoscrolling());
	}

	// Ensure that autoscrolling continues when the MouseLeave event is fired.
	TEST_F(AutoscrollControllerTest, ContinueAutoscrollAfterMouseLeaveEvent) {
	WebView().MainFrameWidget()->Resize(WebSize(800, 600));
	SimRequest request("https://example.com/test.html", "text/html");
	LoadURL("https://example.com/test.html");
	request.Complete(R"HTML(
	<!DOCTYPE html>
	<style>
	#scrollable {
	width: 820px;
	height: 620px;
	}
	</style>
	<div id='scrollable'></div>
	)HTML");

	Compositor().BeginFrame();

	AutoscrollController& controller = GetAutoscrollController();

	EXPECT_FALSE(controller.IsAutoscrolling());

	LocalFrame* frame = GetDocument().GetFrame();
	Node* document_node = GetDocument().documentElement();
	controller.StartMiddleClickAutoscroll(
	frame, document_node->parentNode()->GetLayoutBox(), FloatPoint(),
	FloatPoint());

	EXPECT_TRUE(controller.IsAutoscrolling());

	WebMouseEvent mouse_leave_event(WebInputEvent::Type::kMouseLeave,
	WebInputEvent::kNoModifiers,
	base::TimeTicks::Now());
	mouse_leave_event.SetFrameScale(1);

	frame->GetEventHandler().HandleMouseLeaveEvent(mouse_leave_event);

	EXPECT_TRUE(controller.IsAutoscrolling());
	}

	// Ensure that autoscrolling stops when scrolling is no longer available.
	TEST_F(AutoscrollControllerTest, StopAutoscrollOnResize) {
	WebView().MainFrameWidget()->Resize(WebSize(800, 600));
	SimRequest request("https://example.com/test.html", "text/html");
	LoadURL("https://example.com/test.html");
	request.Complete(R"HTML(
	<!DOCTYPE html>
	<style>
	#scrollable {
	width: 820px;
	height: 620px;
	}
	</style>
	<div id='scrollable'></div>
	)HTML");

	Compositor().BeginFrame();

	AutoscrollController& controller = GetAutoscrollController();

	EXPECT_FALSE(controller.IsAutoscrolling());

	LocalFrame* frame = GetDocument().GetFrame();
	controller.StartMiddleClickAutoscroll(frame, GetDocument().GetLayoutView(),
	FloatPoint(), FloatPoint());

	EXPECT_TRUE(controller.IsAutoscrolling());

	// Confirm that it correctly stops autoscrolling when scrolling is no longer
	// possible
	WebView().MainFrameWidget()->Resize(WebSize(840, 640));

	WebMouseEvent mouse_move_event(WebInputEvent::Type::kMouseMove,
	WebInputEvent::kNoModifiers,
	base::TimeTicks::Now());

	frame->GetEventHandler().HandleMouseMoveEvent(
	mouse_move_event, Vector<WebMouseEvent>(), Vector<WebMouseEvent>());

	EXPECT_FALSE(controller.IsAutoscrolling());

	// Confirm that autoscrolling doesn't restart when scrolling is available
	// again
	WebView().MainFrameWidget()->Resize(WebSize(800, 600));

	WebMouseEvent mouse_move_event2(WebInputEvent::Type::kMouseMove,
	WebInputEvent::kNoModifiers,
	base::TimeTicks::Now());

	frame->GetEventHandler().HandleMouseMoveEvent(
	mouse_move_event2, Vector<WebMouseEvent>(), Vector<WebMouseEvent>());

	EXPECT_FALSE(controller.IsAutoscrolling());

	// And finally confirm that autoscrolling can start again.
	controller.StartMiddleClickAutoscroll(frame, GetDocument().GetLayoutView(),
	FloatPoint(), FloatPoint());

	EXPECT_TRUE(controller.IsAutoscrolling());
	}

	} // namespace blink