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1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef ScrollStateCallback_h | 5 #ifndef ScrollStateCallback_h |
6 #define ScrollStateCallback_h | 6 #define ScrollStateCallback_h |
7 | 7 |
8 #include "platform/heap/Handle.h" | 8 #include "platform/heap/Handle.h" |
9 #include "public/platform/WebNativeScrollBehavior.h" | 9 #include "public/platform/WebNativeScrollBehavior.h" |
10 | 10 |
11 namespace blink { | 11 namespace blink { |
12 | 12 |
13 class ScrollState; | 13 class ScrollState; |
14 | 14 |
15 class ScrollStateCallback | 15 class ScrollStateCallback |
16 : public GarbageCollectedFinalized<ScrollStateCallback> { | 16 : public GarbageCollectedFinalized<ScrollStateCallback> { |
17 public: | 17 public: |
18 ScrollStateCallback() | 18 ScrollStateCallback() |
19 : native_scroll_behavior_(WebNativeScrollBehavior::kDisableNativeScroll) { | 19 : native_scroll_behavior_(WebNativeScrollBehavior::kDisableNativeScroll) { |
20 } | 20 } |
21 | 21 |
22 virtual ~ScrollStateCallback() {} | 22 virtual ~ScrollStateCallback() {} |
23 | 23 |
24 DEFINE_INLINE_VIRTUAL_TRACE() {} | 24 DEFINE_INLINE_VIRTUAL_TRACE() {} |
25 virtual void handleEvent(ScrollState*) = 0; | 25 virtual void handleEvent(ScrollState*) = 0; |
26 | 26 |
27 void SetNativeScrollBehavior(WebNativeScrollBehavior native_scroll_behavior) { | 27 void SetNativeScrollBehavior(WebNativeScrollBehavior native_scroll_behavior) { |
28 ASSERT(static_cast<int>(native_scroll_behavior) < 3); | 28 DCHECK_LT(static_cast<int>(native_scroll_behavior), 3); |
29 native_scroll_behavior_ = native_scroll_behavior; | 29 native_scroll_behavior_ = native_scroll_behavior; |
30 } | 30 } |
31 | 31 |
32 WebNativeScrollBehavior NativeScrollBehavior() { | 32 WebNativeScrollBehavior NativeScrollBehavior() { |
33 return native_scroll_behavior_; | 33 return native_scroll_behavior_; |
34 } | 34 } |
35 | 35 |
36 static WebNativeScrollBehavior ToNativeScrollBehavior( | 36 static WebNativeScrollBehavior ToNativeScrollBehavior( |
37 String native_scroll_behavior); | 37 String native_scroll_behavior); |
38 | 38 |
39 protected: | 39 protected: |
40 WebNativeScrollBehavior native_scroll_behavior_; | 40 WebNativeScrollBehavior native_scroll_behavior_; |
41 }; | 41 }; |
42 | 42 |
43 } // namespace blink | 43 } // namespace blink |
44 | 44 |
45 #endif // ScrollStateCallback_h | 45 #endif // ScrollStateCallback_h |
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