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1 // Copyright 2017 The Chromium Authors. All rights reserved. | 1 // Copyright 2017 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.photo_picker; | 5 package org.chromium.chrome.browser.photo_picker; |
6 | 6 |
7 import android.content.res.Resources; | |
7 import android.graphics.Bitmap; | 8 import android.graphics.Bitmap; |
9 import android.os.AsyncTask; | |
8 import android.support.v7.widget.RecyclerView.ViewHolder; | 10 import android.support.v7.widget.RecyclerView.ViewHolder; |
9 import android.text.TextUtils; | 11 import android.text.TextUtils; |
10 | 12 |
13 import org.chromium.chrome.R; | |
14 | |
11 import java.util.List; | 15 import java.util.List; |
12 | 16 |
13 /** | 17 /** |
14 * Holds on to a {@link PickerBitmapView} that displays information about a pick er bitmap. | 18 * Holds on to a {@link PickerBitmapView} that displays information about a pick er bitmap. |
15 */ | 19 */ |
16 public class PickerBitmapViewHolder | 20 public class PickerBitmapViewHolder |
17 extends ViewHolder implements DecoderServiceHost.ImageDecodedCallback { | 21 extends ViewHolder implements DecoderServiceHost.ImageDecodedCallback { |
18 // Our parent category. | 22 // Our parent category. |
19 private PickerCategoryView mCategoryView; | 23 private PickerCategoryView mCategoryView; |
20 | 24 |
21 // The bitmap view we are holding on to. | 25 // The bitmap view we are holding on to. |
22 private final PickerBitmapView mItemView; | 26 private final PickerBitmapView mItemView; |
23 | 27 |
28 // The screen density. | |
29 private final float mDensity; | |
Theresa
2017/05/09 14:59:27
This value isn't used anymore, right?
Finnur
2017/05/09 15:08:22
Correct. Done.
| |
30 | |
24 // The request we are showing the bitmap for. | 31 // The request we are showing the bitmap for. |
25 private PickerBitmap mBitmapDetails; | 32 private PickerBitmap mBitmapDetails; |
26 | 33 |
27 /** | 34 /** |
28 * The PickerBitmapViewHolder. | 35 * The PickerBitmapViewHolder. |
29 * @param itemView The {@link PickerBitmapView} view for showing the image. | 36 * @param itemView The {@link PickerBitmapView} view for showing the image. |
30 */ | 37 */ |
31 public PickerBitmapViewHolder(PickerBitmapView itemView) { | 38 public PickerBitmapViewHolder(PickerBitmapView itemView) { |
32 super(itemView); | 39 super(itemView); |
33 mItemView = itemView; | 40 mItemView = itemView; |
41 mDensity = itemView.getContext().getResources().getDisplayMetrics().dens ity; | |
34 } | 42 } |
35 | 43 |
36 // DecoderServiceHost.ImageDecodedCallback | 44 // DecoderServiceHost.ImageDecodedCallback |
37 | 45 |
38 @Override | 46 @Override |
39 public void imageDecodedCallback(String filePath, Bitmap bitmap) { | 47 public void imageDecodedCallback(String filePath, Bitmap bitmap) { |
40 if (bitmap == null || bitmap.getWidth() == 0 || bitmap.getHeight() == 0) { | 48 if (bitmap == null || bitmap.getWidth() == 0 || bitmap.getHeight() == 0) { |
41 return; | 49 return; |
42 } | 50 } |
43 | 51 |
52 if (mCategoryView.getHighResBitmaps().get(filePath) == null) { | |
53 mCategoryView.getHighResBitmaps().put(filePath, bitmap); | |
54 } | |
55 | |
56 if (mCategoryView.getLowResBitmaps().get(filePath) == null) { | |
57 Resources resources = mItemView.getContext().getResources(); | |
58 new BitmapScalerTask(mCategoryView.getLowResBitmaps(), filePath, | |
59 resources.getDimensionPixelSize(R.dimen.photo_picker_grainy_ thumbnail_size)) | |
60 .executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, bitmap); | |
61 } | |
62 | |
44 if (!TextUtils.equals(mBitmapDetails.getFilePath(), filePath)) { | 63 if (!TextUtils.equals(mBitmapDetails.getFilePath(), filePath)) { |
45 return; | 64 return; |
46 } | 65 } |
47 | 66 |
48 mItemView.setThumbnailBitmap(bitmap); | 67 mItemView.setThumbnailBitmap(bitmap); |
49 } | 68 } |
50 | 69 |
51 /** | 70 /** |
52 * Display a single item from |position| in the PickerCategoryView. | 71 * Display a single item from |position| in the PickerCategoryView. |
53 * @param categoryView The PickerCategoryView to use to fetch the image. | 72 * @param categoryView The PickerCategoryView to use to fetch the image. |
54 * @param position The position of the item to fetch. | 73 * @param position The position of the item to fetch. |
55 */ | 74 */ |
56 public void displayItem(PickerCategoryView categoryView, int position) { | 75 public void displayItem(PickerCategoryView categoryView, int position) { |
57 mCategoryView = categoryView; | 76 mCategoryView = categoryView; |
58 | 77 |
59 List<PickerBitmap> pickerBitmaps = mCategoryView.getPickerBitmaps(); | 78 List<PickerBitmap> pickerBitmaps = mCategoryView.getPickerBitmaps(); |
60 mBitmapDetails = pickerBitmaps.get(position); | 79 mBitmapDetails = pickerBitmaps.get(position); |
61 | 80 |
62 if (mBitmapDetails.type() == PickerBitmap.CAMERA | 81 if (mBitmapDetails.type() == PickerBitmap.CAMERA |
63 || mBitmapDetails.type() == PickerBitmap.GALLERY) { | 82 || mBitmapDetails.type() == PickerBitmap.GALLERY) { |
64 mItemView.initialize(mBitmapDetails, null, false); | 83 mItemView.initialize(mBitmapDetails, null, false); |
65 return; | 84 return; |
66 } | 85 } |
67 | 86 |
68 // TODO(finnur): Use cached image, if available. | 87 String filePath = mBitmapDetails.getFilePath(); |
69 | 88 Bitmap original = mCategoryView.getHighResBitmaps().get(filePath); |
70 mItemView.initialize(mBitmapDetails, null, true); | 89 if (original != null) { |
90 mItemView.initialize(mBitmapDetails, original, false); | |
91 return; | |
92 } | |
71 | 93 |
72 int size = mCategoryView.getImageSize(); | 94 int size = mCategoryView.getImageSize(); |
73 mCategoryView.getDecoderServiceHost().decodeImage(mBitmapDetails.getFile Path(), size, this); | 95 Bitmap placeholder = mCategoryView.getLowResBitmaps().get(filePath); |
96 if (placeholder != null) { | |
97 // For performance stats see http://crbug.com/719919. | |
98 placeholder = BitmapUtils.scale(placeholder, size, false); | |
99 mItemView.initialize(mBitmapDetails, placeholder, true); | |
100 } else { | |
101 mItemView.initialize(mBitmapDetails, null, true); | |
102 } | |
103 | |
104 mCategoryView.getDecoderServiceHost().decodeImage(filePath, size, this); | |
74 } | 105 } |
75 | 106 |
76 /** | 107 /** |
77 * Returns the file path of the current request. | 108 * Returns the file path of the current request. |
78 */ | 109 */ |
79 public String getFilePath() { | 110 public String getFilePath() { |
80 return mBitmapDetails == null ? null : mBitmapDetails.getFilePath(); | 111 return mBitmapDetails == null ? null : mBitmapDetails.getFilePath(); |
81 } | 112 } |
82 } | 113 } |
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