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Unified Diff: cc/input/scroll_boundary_behavior.h

Issue 2769793002: Implement CSS: scroll-boundary-behavior (Closed)
Patch Set: update the tests Created 3 years, 6 months ago
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Index: cc/input/scroll_boundary_behavior.h
diff --git a/cc/input/scroll_boundary_behavior.h b/cc/input/scroll_boundary_behavior.h
new file mode 100644
index 0000000000000000000000000000000000000000..37e1aada6e79436e7258f8c134e38f4886135075
--- /dev/null
+++ b/cc/input/scroll_boundary_behavior.h
@@ -0,0 +1,41 @@
+// Copyright (c) 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.
+
+#ifndef CC_INPUT_SCROLL_BOUNDARY_BEHAVIOR_H_
+#define CC_INPUT_SCROLL_BOUNDARY_BEHAVIOR_H_
+
+#include "cc/cc_export.h"
+
+namespace cc {
+
+struct CC_EXPORT ScrollBoundaryBehavior {
+ enum ScrollBoundaryBehaviorType {
+ kScrollBoundaryBehaviorTypeAuto,
+ kScrollBoundaryBehaviorTypeContain,
+ kScrollBoundaryBehaviorTypeNone
ajuma 2017/06/30 20:46:49 Please add brief comments about what these values
sunyunjia 2017/07/14 02:59:00 Done.
+ };
+
+ ScrollBoundaryBehavior()
+ : x(kScrollBoundaryBehaviorTypeAuto),
+ y(kScrollBoundaryBehaviorTypeAuto) {}
+ explicit ScrollBoundaryBehavior(ScrollBoundaryBehaviorType type)
+ : x(type), y(type) {}
+ ScrollBoundaryBehavior(ScrollBoundaryBehaviorType x_type,
+ ScrollBoundaryBehaviorType y_type)
+ : x(x_type), y(y_type) {}
+
+ ScrollBoundaryBehaviorType x;
+ ScrollBoundaryBehaviorType y;
+
+ bool operator==(const ScrollBoundaryBehavior& a) const {
+ return (a.x == x) && (a.y == y);
+ }
+ bool operator!=(const ScrollBoundaryBehavior& a) const {
+ return !(*this == a);
+ }
+};
+
+} // namespace cc
+
+#endif // CC_INPUT_SCROLL_BOUNDARY_BEHAVIOR_H_
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