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1 // Copyright 2016 The Chromium Authors. All rights reserved. | 1 // Copyright 2016 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 package org.chromium.chrome.browser.ntp.cards; | 5 package org.chromium.chrome.browser.ntp.cards; |
6 | 6 |
7 import android.content.Context; | 7 import android.content.Context; |
8 import android.view.View; | 8 import android.view.View; |
9 import android.view.ViewGroup; | 9 import android.view.ViewGroup; |
10 | 10 |
11 /** | 11 /** |
12 * Placeholder item to let the snippets flow to the top of the scroll list even
when it does not | 12 * Placeholder item to let the snippets flow to the top of the scroll list even
when it does not |
13 * contain enough of them. It is displayed as a dummy item with variable height
that just occupies | 13 * contain enough of them. It is displayed as a dummy item with variable height
that just occupies |
14 * the remaining space between the last item in the RecyclerView and the bottom
of the screen. | 14 * the remaining space between the last item in the RecyclerView and the bottom
of the screen. |
15 */ | 15 */ |
16 public class SpacingItem extends SingleItemGroup { | 16 public class SpacingItem extends Leaf { |
17 private static class SpacingView extends View { | 17 private static class SpacingView extends View { |
18 public SpacingView(Context context) { | 18 public SpacingView(Context context) { |
19 super(context); | 19 super(context); |
20 } | 20 } |
21 | 21 |
22 @Override | 22 @Override |
23 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { | 23 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { |
24 setMeasuredDimension( | 24 setMeasuredDimension( |
25 0, ((NewTabPageRecyclerView) getParent()).calculateBottomSpa
cing()); | 25 0, ((NewTabPageRecyclerView) getParent()).calculateBottomSpa
cing()); |
26 } | 26 } |
27 } | 27 } |
28 | 28 |
29 /** Creates the View object for displaying the variable spacing. */ | 29 /** Creates the View object for displaying the variable spacing. */ |
30 public static View createView(ViewGroup parent) { | 30 public static View createView(ViewGroup parent) { |
31 return new SpacingView(parent.getContext()); | 31 return new SpacingView(parent.getContext()); |
32 } | 32 } |
33 | 33 |
34 @Override | 34 @Override |
35 public int getType() { | 35 @ItemViewType |
36 return NewTabPageItem.VIEW_TYPE_SPACING; | 36 protected int getItemViewType() { |
| 37 return ItemViewType.VIEW_TYPE_SPACING; |
37 } | 38 } |
38 | 39 |
39 @Override | 40 @Override |
40 public void onBindViewHolder(NewTabPageViewHolder holder) { | 41 protected void onBindViewHolder(NewTabPageViewHolder holder) { |
41 // Nothing to do. | 42 // Nothing to do. |
42 } | 43 } |
43 } | 44 } |
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