Implement Element.scrollIntoView for scroll-behavior: smooth.

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

 // Copyright 2014 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/RootFrameViewport.h"
 
 #include "core/layout/ScrollAlignment.h"
 #include "platform/geometry/DoubleRect.h"
 #include "platform/geometry/LayoutRect.h"
 #include "platform/scheduler/child/web_scheduler.h"
@@ skipping 289 matching lines @@
   VisualViewportStub* visual_viewport =
       VisualViewportStub::Create(viewport_size, viewport_size);
 
   ScrollableArea* root_frame_viewport =
       RootFrameViewport::Create(*visual_viewport, *layout_viewport);
 
   // Test that the visual viewport is scrolled if the viewport has been
   // resized (as is the case when the ChromeOS keyboard comes up) but not
   // scaled.
   visual_viewport->SetViewportSize(IntSize(100, 100));
-  root_frame_viewport->ScrollIntoView(LayoutRect(100, 250, 50, 50),
-                                      ScrollAlignment::kAlignToEdgeIfNeeded,
-                                      ScrollAlignment::kAlignToEdgeIfNeeded);
+  root_frame_viewport->ScrollIntoView(
+      LayoutRect(100, 250, 50, 50), ScrollAlignment::kAlignToEdgeIfNeeded,
+      ScrollAlignment::kAlignToEdgeIfNeeded, false);
   EXPECT_SIZE_EQ(ScrollOffset(50, 150), layout_viewport->GetScrollOffset());
   EXPECT_SIZE_EQ(ScrollOffset(0, 50), visual_viewport->GetScrollOffset());
 
-  root_frame_viewport->ScrollIntoView(LayoutRect(25, 75, 50, 50),
-                                      ScrollAlignment::kAlignToEdgeIfNeeded,
-                                      ScrollAlignment::kAlignToEdgeIfNeeded);
+  root_frame_viewport->ScrollIntoView(
+      LayoutRect(25, 75, 50, 50), ScrollAlignment::kAlignToEdgeIfNeeded,
+      ScrollAlignment::kAlignToEdgeIfNeeded, false);
   EXPECT_SIZE_EQ(ScrollOffset(25, 75), layout_viewport->GetScrollOffset());
   EXPECT_SIZE_EQ(ScrollOffset(0, 0), visual_viewport->GetScrollOffset());
 
   // Reset the visual viewport's size, scale the page, and repeat the test
   visual_viewport->SetViewportSize(IntSize(100, 150));
   visual_viewport->SetScale(2);
   root_frame_viewport->SetScrollOffset(ScrollOffset(), kProgrammaticScroll);
 
-  root_frame_viewport->ScrollIntoView(LayoutRect(50, 75, 50, 75),
-                                      ScrollAlignment::kAlignToEdgeIfNeeded,
-                                      ScrollAlignment::kAlignToEdgeIfNeeded);
+  root_frame_viewport->ScrollIntoView(
+      LayoutRect(50, 75, 50, 75), ScrollAlignment::kAlignToEdgeIfNeeded,
+      ScrollAlignment::kAlignToEdgeIfNeeded, false);
   EXPECT_SIZE_EQ(ScrollOffset(0, 0), layout_viewport->GetScrollOffset());
   EXPECT_SIZE_EQ(ScrollOffset(50, 75), visual_viewport->GetScrollOffset());
 
-  root_frame_viewport->ScrollIntoView(LayoutRect(190, 290, 10, 10),
-                                      ScrollAlignment::kAlignToEdgeIfNeeded,
-                                      ScrollAlignment::kAlignToEdgeIfNeeded);
+  root_frame_viewport->ScrollIntoView(
+      LayoutRect(190, 290, 10, 10), ScrollAlignment::kAlignToEdgeIfNeeded,
+      ScrollAlignment::kAlignToEdgeIfNeeded, false);
   EXPECT_SIZE_EQ(ScrollOffset(100, 150), layout_viewport->GetScrollOffset());
   EXPECT_SIZE_EQ(ScrollOffset(50, 75), visual_viewport->GetScrollOffset());
 
   // Scrolling into view the viewport rect itself should be a no-op.
   visual_viewport->SetViewportSize(IntSize(100, 100));
   visual_viewport->SetScale(1.5f);
   visual_viewport->SetScrollOffset(ScrollOffset(0, 10), kProgrammaticScroll);
   layout_viewport->SetScrollOffset(ScrollOffset(50, 50), kProgrammaticScroll);
   root_frame_viewport->SetScrollOffset(root_frame_viewport->GetScrollOffset(),
                                        kProgrammaticScroll);
 
   root_frame_viewport->ScrollIntoView(
       LayoutRect(root_frame_viewport->VisibleContentRect(kExcludeScrollbars)),
       ScrollAlignment::kAlignToEdgeIfNeeded,
-      ScrollAlignment::kAlignToEdgeIfNeeded);
+      ScrollAlignment::kAlignToEdgeIfNeeded, false);
   EXPECT_SIZE_EQ(ScrollOffset(50, 50), layout_viewport->GetScrollOffset());
   EXPECT_SIZE_EQ(ScrollOffset(0, 10), visual_viewport->GetScrollOffset());
 
   root_frame_viewport->ScrollIntoView(
       LayoutRect(root_frame_viewport->VisibleContentRect(kExcludeScrollbars)),
-      ScrollAlignment::kAlignCenterAlways, ScrollAlignment::kAlignCenterAlways);
+      ScrollAlignment::kAlignCenterAlways, ScrollAlignment::kAlignCenterAlways,
+      false);
   EXPECT_SIZE_EQ(ScrollOffset(50, 50), layout_viewport->GetScrollOffset());
   EXPECT_SIZE_EQ(ScrollOffset(0, 10), visual_viewport->GetScrollOffset());
 
   root_frame_viewport->ScrollIntoView(
       LayoutRect(root_frame_viewport->VisibleContentRect(kExcludeScrollbars)),
-      ScrollAlignment::kAlignTopAlways, ScrollAlignment::kAlignTopAlways);
+      ScrollAlignment::kAlignTopAlways, ScrollAlignment::kAlignTopAlways,
+      false);
   EXPECT_SIZE_EQ(ScrollOffset(50, 50), layout_viewport->GetScrollOffset());
   EXPECT_SIZE_EQ(ScrollOffset(0, 10), visual_viewport->GetScrollOffset());
 }
 
 // Tests that the setScrollOffset method works correctly with both viewports.
 TEST_F(RootFrameViewportTest, SetScrollOffset) {
   IntSize viewport_size(500, 500);
   RootFrameViewStub* layout_viewport =
       RootFrameViewStub::Create(viewport_size, IntSize(1000, 2000));
   VisualViewportStub* visual_viewport =
@@ skipping 115 matching lines @@
   EXPECT_SIZE_EQ(ScrollOffset(150, 150), alternate_scroller->GetScrollOffset());
   EXPECT_SIZE_EQ(ScrollOffset(200, 200),
                  root_frame_viewport->GetScrollOffset());
   EXPECT_SIZE_EQ(ScrollOffset(50, 50), layout_viewport->GetScrollOffset());
 
   EXPECT_SIZE_EQ(ScrollOffset(550, 450),
                  root_frame_viewport->MaximumScrollOffset());
 }
 
 }  // namespace blink