// Copyright 2017 The Chromium Authors // 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/bindings/core/v8/script_evaluation_result.h" #include "third_party/blink/renderer/bindings/core/v8/script_function.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/dom/range.h" #include "third_party/blink/renderer/core/editing/dom_selection.h" #include "third_party/blink/renderer/core/editing/frame_selection.h" #include "third_party/blink/renderer/core/editing/selection_controller.h" #include "third_party/blink/renderer/core/editing/selection_template.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/script/classic_script.h" #include "third_party/blink/renderer/core/scroll/scroll_animator_base.h" #include "third_party/blink/renderer/core/testing/page_test_base.h" #include "third_party/blink/renderer/core/testing/sim/sim_request.h" #include "third_party/blink/renderer/core/testing/sim/sim_test.h" #include "third_party/blink/renderer/core/timing/dom_window_performance.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().MainFrameViewWidget()->Resize(gfx::Size(800, 600)); WebView().SetPageBaseBackgroundColor(SK_ColorTRANSPARENT); SimRequest request("https://example.com/test.html", "text/html"); LoadURL("https://example.com/test.html"); request.Complete(R"HTML(

Some text here for selection autoscroll.

)HTML"); Compositor().BeginFrame(); AutoscrollController& controller = GetAutoscrollController(); Document& document = GetDocument(); Element* scrollable = document.getElementById(AtomicString("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().MainFrameViewWidget()->Resize(gfx::Size(800, 600)); 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(); EXPECT_FALSE(controller.IsAutoscrolling()); LocalFrame* frame = GetDocument().GetFrame(); Node* document_node = GetDocument().documentElement(); controller.StartMiddleClickAutoscroll( frame, document_node->parentNode()->GetLayoutBox(), gfx::PointF(), gfx::PointF()); 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().MainFrameViewWidget()->Resize(gfx::Size(800, 600)); 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(); EXPECT_FALSE(controller.IsAutoscrolling()); LocalFrame* frame = GetDocument().GetFrame(); controller.StartMiddleClickAutoscroll(frame, GetDocument().GetLayoutView(), gfx::PointF(), gfx::PointF()); EXPECT_TRUE(controller.IsAutoscrolling()); // Confirm that it correctly stops autoscrolling when scrolling is no longer // possible WebView().MainFrameViewWidget()->Resize(gfx::Size(840, 640)); WebMouseEvent mouse_move_event(WebInputEvent::Type::kMouseMove, WebInputEvent::kNoModifiers, base::TimeTicks::Now()); frame->GetEventHandler().HandleMouseMoveEvent( mouse_move_event, Vector(), Vector()); EXPECT_FALSE(controller.IsAutoscrolling()); // Confirm that autoscrolling doesn't restart when scrolling is available // again WebView().MainFrameViewWidget()->Resize(gfx::Size(800, 600)); WebMouseEvent mouse_move_event2(WebInputEvent::Type::kMouseMove, WebInputEvent::kNoModifiers, base::TimeTicks::Now()); frame->GetEventHandler().HandleMouseMoveEvent( mouse_move_event2, Vector(), Vector()); EXPECT_FALSE(controller.IsAutoscrolling()); // And finally confirm that autoscrolling can start again. controller.StartMiddleClickAutoscroll(frame, GetDocument().GetLayoutView(), gfx::PointF(), gfx::PointF()); EXPECT_TRUE(controller.IsAutoscrolling()); } // Ensure that middle click autoscroll is not propagated in a direction when // propagation is not allowed. TEST_F(AutoscrollControllerTest, AutoscrollIsNotPropagated) { 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(); EXPECT_FALSE(controller.IsAutoscrolling()); LocalFrame* frame = GetDocument().GetFrame(); LayoutBox* scrollable = GetDocument().getElementById(AtomicString("scrollable"))->GetLayoutBox(); controller.StartMiddleClickAutoscroll( frame, scrollable, gfx::PointF(15.0, 15.0), gfx::PointF(15.0, 15.0)); EXPECT_TRUE(controller.IsAutoscrolling()); EXPECT_TRUE(controller.horizontal_autoscroll_layout_box_); EXPECT_FALSE(controller.vertical_autoscroll_layout_box_); } // Ensure that middle click autoscroll is propagated in a direction when // overscroll-behavior is set to auto for a that direction. TEST_F(AutoscrollControllerTest, AutoscrollIsPropagatedInYDirection) { 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(); EXPECT_FALSE(controller.IsAutoscrolling()); LocalFrame* frame = GetDocument().GetFrame(); LayoutBox* scrollable = GetDocument().getElementById(AtomicString("scrollable"))->GetLayoutBox(); controller.StartMiddleClickAutoscroll( frame, scrollable, gfx::PointF(15.0, 15.0), gfx::PointF(15.0, 15.0)); EXPECT_TRUE(controller.IsAutoscrolling()); EXPECT_TRUE(controller.vertical_autoscroll_layout_box_); EXPECT_TRUE(controller.horizontal_autoscroll_layout_box_); } TEST_F(AutoscrollControllerTest, TextSelectionAutoScroll) { WebView().MainFrameViewWidget()->Resize(gfx::Size(800, 600)); GetDocument().GetSettings()->SetScriptEnabled(true); Element* script = GetDocument().CreateRawElement(html_names::kScriptTag); SimRequest request("https://example.com/test.html", "text/html"); LoadURL("https://example.com/test.html"); request.Complete(R"HTML(

Test test test test test test...

)HTML"); script->SetInnerHTMLWithoutTrustedTypes(R"HTML( let eventCounts = {pointerdown: 0, scroll: 0}; let target = document.getElementById('targetDiv'); for (let evt in eventCounts) { target.addEventListener(evt, function(e) { eventCounts[e.type]++; let log = document.getElementById('log'); log.innerText += " " + e.type; }); } )HTML"); GetDocument().body()->AppendChild(script); GetDocument().UpdateStyleAndLayout(DocumentUpdateReason::kTest); Compositor().BeginFrame(); AutoscrollController& controller = GetAutoscrollController(); Document& document = GetDocument(); Element* scrollable = document.getElementById(AtomicString("targetDiv")); DCHECK(scrollable); DCHECK(scrollable->GetLayoutObject()); WebMouseEvent event(WebInputEvent::Type::kMouseDown, gfx::PointF(10, 10), gfx::PointF(10, 10), WebPointerProperties::Button::kLeft, 1, WebInputEvent::Modifiers::kLeftButtonDown, base::TimeTicks::Now()); event.SetFrameScale(1); GetDocument().GetFrame()->GetEventHandler().HandleMousePressEvent(event); controller.StartAutoscrollForSelection(scrollable->GetLayoutObject()); DCHECK(controller.IsAutoscrolling()); WebMouseEvent mouse_event( WebInputEvent::Type::kMouseMove, gfx::PointF(50, 150), gfx::PointF(50, 150), WebPointerProperties::Button::kLeft, 1, WebInputEvent::Modifiers::kLeftButtonDown, base::TimeTicks::Now()); GetDocument().GetFrame()->GetEventHandler().HandleMouseMoveEvent( mouse_event, Vector(), Vector()); ScrollableArea* scrollable_area = scrollable->GetLayoutBox()->GetScrollableArea(); controller.Animate(); EXPECT_TRUE(controller.AutoscrollInProgress()); Compositor().BeginFrame(); mouse_event.SetPositionInWidget(100, 200); mouse_event.SetPositionInScreen(100, 200); GetDocument().GetFrame()->GetEventHandler().HandleMouseMoveEvent( mouse_event, Vector(), Vector()); controller.Animate(); LocalDOMWindow* current_window = GetDocument().GetFrame()->DomWindow(); DCHECK(current_window); WindowPerformance* window_performance = DOMWindowPerformance::performance(*current_window); EXPECT_TRUE(controller.AutoscrollInProgress()); EXPECT_GT(scrollable_area->GetScrollOffset().y(), 0); EXPECT_TRUE(window_performance->IsAutoscrollActive()); Compositor().BeginFrame(); EXPECT_GT(scrollable_area->GetScrollOffset().y(), 0); EXPECT_TRUE(window_performance->IsAutoscrollActive()); mouse_event.SetType(blink::WebInputEvent::Type::kMouseUp); GetDocument().GetFrame()->GetEventHandler().HandleMouseReleaseEvent( mouse_event); Compositor().BeginFrame(); EXPECT_FALSE(controller.AutoscrollInProgress()); EXPECT_FALSE(window_performance->IsAutoscrollActive()); WebElement element = GetDocument().getElementById(AtomicString("log")); EXPECT_EQ("pointerdown scroll", element.InnerHTML().Utf8()); const auto selection = GetDocument().GetFrame()->Selection().GetSelectionInDomTree(); ASSERT_TRUE(selection.IsRange()); Range* range = CreateRange(EphemeralRange(selection.Anchor(), selection.Focus())); ASSERT_TRUE(range); EXPECT_GT(range->GetText().length(), 0u); } TEST_F(AutoscrollControllerTest, PageVisibilityChangeCancelsAutoscroll) { WebView().MainFrameViewWidget()->Resize(gfx::Size(800, 600)); GetDocument().GetSettings()->SetScriptEnabled(true); static const char* kAutoscrollHTML = R"HTML(

)HTML"; SimRequest request("https://example.com/test.html", "text/html"); LoadURL("https://example.com/test.html"); request.Complete(kAutoscrollHTML); AutoscrollController& controller = GetAutoscrollController(); EXPECT_FALSE(controller.IsAutoscrolling()); LocalFrame* frame = GetDocument().GetFrame(); controller.StartMiddleClickAutoscroll(frame, GetDocument().GetLayoutView(), gfx::PointF(), gfx::PointF()); EXPECT_TRUE(controller.IsAutoscrolling()); frame->GetPage()->SetVisibilityState( mojom::blink::PageVisibilityState::kHidden, /*is_initial_state=*/false); EXPECT_FALSE(controller.IsAutoscrolling()); } TEST_F(AutoscrollControllerTest, PageLoadCancelsAutoscroll) { WebView().MainFrameViewWidget()->Resize(gfx::Size(800, 600)); GetDocument().GetSettings()->SetScriptEnabled(true); static const char* kAutoscrollHTML = R"HTML(

)HTML"; SimRequest request("https://example.com/test.html", "text/html"); LoadURL("https://example.com/test.html"); request.Complete(kAutoscrollHTML); AutoscrollController& controller = GetAutoscrollController(); EXPECT_FALSE(controller.IsAutoscrolling()); LocalFrame* frame = GetDocument().GetFrame(); controller.StartMiddleClickAutoscroll(frame, GetDocument().GetLayoutView(), gfx::PointF(), gfx::PointF()); EXPECT_TRUE(controller.IsAutoscrolling()); SimRequest request_2("https://example.com/test_2.html", "text/html"); LoadURL("https://example.com/test_2.html"); request_2.Complete(kAutoscrollHTML); EXPECT_FALSE(controller.IsAutoscrolling()); } } // namespace blink