Index: third_party/WebKit/Source/core/dom/Document.cpp |
diff --git a/third_party/WebKit/Source/core/dom/Document.cpp b/third_party/WebKit/Source/core/dom/Document.cpp |
index 3d1d8c156dea95fb3f0e265d4764c7a7e405806a..fff48c235e1ccde663663c406023bda44526daae 100644 |
--- a/third_party/WebKit/Source/core/dom/Document.cpp |
+++ b/third_party/WebKit/Source/core/dom/Document.cpp |
@@ -203,6 +203,7 @@ |
#include "core/page/FrameTree.h" |
#include "core/page/Page.h" |
#include "core/page/PointerLockController.h" |
+#include "core/page/scrolling/OverscrollController.h" |
#include "core/page/scrolling/RootScrollerController.h" |
#include "core/page/scrolling/ScrollStateCallback.h" |
#include "core/page/scrolling/ScrollingCoordinator.h" |
@@ -1950,6 +1951,20 @@ void Document::PropagateStyleToViewport() { |
} |
ScrollSnapType snap_type = overflow_style->GetScrollSnapType(); |
+ EScrollBoundaryBehavior scroll_boundary_behavior_x = |
+ overflow_style->ScrollBoundaryBehaviorX(); |
+ EScrollBoundaryBehavior scroll_boundary_behavior_y = |
+ overflow_style->ScrollBoundaryBehaviorY(); |
+ using ScrollBoundaryBehaviorType = |
+ WebScrollBoundaryBehavior::ScrollBoundaryBehaviorType; |
+ if (RuntimeEnabledFeatures::CSSScrollBoundaryBehaviorEnabled() && |
+ IsInMainFrame()) { |
+ GetPage()->GetOverscrollController().SetScrollBoundaryBehavior( |
+ WebScrollBoundaryBehavior( |
+ static_cast<ScrollBoundaryBehaviorType>(scroll_boundary_behavior_x), |
dtapuska
2017/08/22 14:51:04
Is there someone where asserting that the CSS cast
sunyunjia
2017/08/22 23:55:37
Yes see https://cs.chromium.org/chromium/src/third
|
+ static_cast<ScrollBoundaryBehaviorType>( |
+ scroll_boundary_behavior_y))); |
+ } |
RefPtr<ComputedStyle> viewport_style = GetLayoutViewItem().MutableStyle(); |
if (viewport_style->GetWritingMode() != root_writing_mode || |
@@ -1962,7 +1977,9 @@ void Document::PropagateStyleToViewport() { |
viewport_style->OverflowX() != overflow_x || |
viewport_style->OverflowY() != overflow_y || |
viewport_style->ColumnGap() != column_gap || |
- viewport_style->GetScrollSnapType() != snap_type) { |
+ viewport_style->GetScrollSnapType() != snap_type || |
+ viewport_style->ScrollBoundaryBehaviorX() != scroll_boundary_behavior_x || |
+ viewport_style->ScrollBoundaryBehaviorY() != scroll_boundary_behavior_y) { |
RefPtr<ComputedStyle> new_style = ComputedStyle::Clone(*viewport_style); |
new_style->SetWritingMode(root_writing_mode); |
new_style->SetDirection(root_direction); |
@@ -1974,6 +1991,8 @@ void Document::PropagateStyleToViewport() { |
new_style->SetOverflowY(overflow_y); |
new_style->SetColumnGap(column_gap); |
new_style->SetScrollSnapType(snap_type); |
+ new_style->SetScrollBoundaryBehaviorX(scroll_boundary_behavior_x); |
+ new_style->SetScrollBoundaryBehaviorY(scroll_boundary_behavior_y); |
GetLayoutViewItem().SetStyle(new_style); |
SetupFontBuilder(*new_style); |
} |