// 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 "testing/gtest/include/gtest/gtest.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/page/autoscroll_controller.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(
)HTML");
Compositor().BeginFrame();
AutoscrollController& controller = GetAutoscrollController();
Document& document = GetDocument();
Element* scrollable = document.getElementById("scrollable");
DCHECK(scrollable);
DCHECK(scrollable->GetLayoutObject());
WebMouseEvent event(WebInputEvent::kMouseDown, WebFloatPoint(5, 5),
WebFloatPoint(5, 5), WebPointerProperties::Button::kLeft,
0, WebInputEvent::Modifiers::kLeftButtonDown,
CurrentTimeTicks());
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(CSSPropertyDisplay, CSSValueNone);
// BeginFrame will call AutoscrollController::Animate.
Compositor().BeginFrame();
EXPECT_FALSE(controller.IsAutoscrolling());
}
} // namespace blink