1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
|
// Copyright 2014 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 CHROME_BROWSER_ANDROID_THUMBNAIL_THUMBNAIL_STORE_H_
#define CHROME_BROWSER_ANDROID_THUMBNAIL_THUMBNAIL_STORE_H_
#include <list>
#include <set>
#include <string>
#include "base/bind.h"
#include "base/containers/hash_tables.h"
#include "base/files/file_path.h"
#include "base/memory/ref_counted.h"
#include "base/observer_list.h"
#include "base/time/time.h"
#include "chrome/browser/android/thumbnail/scoped_ptr_expiring_cache.h"
#include "chrome/browser/android/thumbnail/thumbnail.h"
#include "third_party/skia/include/core/SkBitmap.h"
#include "ui/android/resources/ui_resource_client_android.h"
#include "ui/android/resources/ui_resource_provider.h"
#include "ui/gfx/geometry/point.h"
#include "ui/gfx/geometry/size.h"
#include "ui/gfx/geometry/size_f.h"
#include "url/gurl.h"
namespace base {
class File;
class Time;
}
namespace content {
class ContentViewCore;
}
typedef std::list<TabId> TabIdList;
class ThumbnailStoreObserver {
public:
virtual void OnFinishedThumbnailRead(TabId tab_id) = 0;
};
class ThumbnailStore : ThumbnailDelegate {
public:
ThumbnailStore(const std::string& disk_cache_path_str,
size_t default_cache_size,
size_t approximation_cache_size,
size_t compression_queue_max_size,
size_t write_queue_max_size,
bool use_approximation_thumbnail);
virtual ~ThumbnailStore();
void SetUIResourceProvider(ui::UIResourceProvider* ui_resource_provider);
void AddThumbnailStoreObserver(ThumbnailStoreObserver* observer);
void RemoveThumbnailStoreObserver(
ThumbnailStoreObserver* observer);
void Put(TabId tab_id, const SkBitmap& bitmap, float thumbnail_scale);
void Remove(TabId tab_id);
Thumbnail* Get(TabId tab_id, bool force_disk_read, bool allow_approximation);
void RemoveFromDiskAtAndAboveId(TabId min_id);
void InvalidateThumbnailIfChanged(TabId tab_id, const GURL& url);
bool CheckAndUpdateThumbnailMetaData(TabId tab_id, const GURL& url);
void UpdateVisibleIds(const TabIdList& priority);
void DecompressThumbnailFromFile(
TabId tab_id,
const base::Callback<void(bool, SkBitmap)>&
post_decompress_callback);
// ThumbnailDelegate implementation
virtual void InvalidateCachedThumbnail(Thumbnail* thumbnail) override;
private:
class ThumbnailMetaData {
public:
ThumbnailMetaData();
ThumbnailMetaData(const base::Time& current_time, const GURL& url);
const GURL& url() const { return url_; }
base::Time capture_time() const { return capture_time_; }
private:
base::Time capture_time_;
GURL url_;
};
typedef ScopedPtrExpiringCache<TabId, Thumbnail> ExpiringThumbnailCache;
typedef base::hash_map<TabId, ThumbnailMetaData> ThumbnailMetaDataMap;
void RemoveFromDisk(TabId tab_id);
static void RemoveFromDiskTask(const base::FilePath& file_path);
static void RemoveFromDiskAtAndAboveIdTask(const base::FilePath& dir_path,
TabId min_id);
void WriteThumbnailIfNecessary(TabId tab_id,
skia::RefPtr<SkPixelRef> compressed_data,
float scale,
const gfx::Size& content_size);
void CompressThumbnailIfNecessary(TabId tab_id,
const base::Time& time_stamp,
const SkBitmap& bitmap,
float scale);
void ReadNextThumbnail();
void MakeSpaceForNewItemIfNecessary(TabId tab_id);
void RemoveFromReadQueue(TabId tab_id);
base::FilePath GetFilePath(TabId tab_id) const;
static void WriteTask(const base::FilePath& file_path,
skia::RefPtr<SkPixelRef> compressed_data,
float scale,
const gfx::Size& content_size,
const base::Callback<void()>& post_write_task);
void PostWriteTask();
static void CompressionTask(
SkBitmap raw_data,
gfx::Size encoded_size,
const base::Callback<void(skia::RefPtr<SkPixelRef>, const gfx::Size&)>&
post_compression_task);
void PostCompressionTask(TabId tab_id,
const base::Time& time_stamp,
float scale,
skia::RefPtr<SkPixelRef> compressed_data,
const gfx::Size& content_size);
static void DecompressionTask(
const base::Callback<void(bool, SkBitmap)>&
post_decompress_callback,
skia::RefPtr<SkPixelRef> compressed_data,
float scale,
const gfx::Size& encoded_size);
static void ReadTask(
bool decompress,
const base::FilePath& file_path,
const base::Callback<
void(skia::RefPtr<SkPixelRef>, float, const gfx::Size&)>&
post_read_task);
void PostReadTask(TabId tab_id,
skia::RefPtr<SkPixelRef> compressed_data,
float scale,
const gfx::Size& content_size);
void NotifyObserversOfThumbnailRead(TabId tab_id);
void RemoveOnMatchedTimeStamp(TabId tab_id, const base::Time& time_stamp);
static std::pair<SkBitmap, float> CreateApproximation(const SkBitmap& bitmap,
float scale);
const base::FilePath disk_cache_path_;
const size_t compression_queue_max_size_;
const size_t write_queue_max_size_;
const bool use_approximation_thumbnail_;
size_t compression_tasks_count_;
size_t write_tasks_count_;
bool read_in_progress_;
ExpiringThumbnailCache cache_;
ExpiringThumbnailCache approximation_cache_;
ObserverList<ThumbnailStoreObserver> observers_;
ThumbnailMetaDataMap thumbnail_meta_data_;
TabIdList read_queue_;
TabIdList visible_ids_;
ui::UIResourceProvider* ui_resource_provider_;
base::WeakPtrFactory<ThumbnailStore> weak_factory_;
DISALLOW_COPY_AND_ASSIGN(ThumbnailStore);
};
#endif // CHROME_BROWSER_ANDROID_THUMBNAIL_THUMBNAIL_STORE_H_
|
