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
|
/*
* Copyright (C) 2007 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef THIRD_PARTY_BLINK_RENDERER_CORE_LOADER_PROGRESS_TRACKER_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_LOADER_PROGRESS_TRACKER_H_
#include "third_party/blink/renderer/core/core_export.h"
#include "third_party/blink/renderer/core/loader/frame_loader_types.h"
#include "third_party/blink/renderer/platform/heap/handle.h"
#include "third_party/blink/renderer/platform/loader/fetch/resource_load_priority.h"
#include "third_party/blink/renderer/platform/wtf/allocator/allocator.h"
#include "third_party/blink/renderer/platform/wtf/forward.h"
#include "third_party/blink/renderer/platform/wtf/hash_map.h"
namespace blink {
class LocalFrameClient;
class LocalFrame;
class ResourceResponse;
struct ProgressItem {
USING_FAST_MALLOC(ProgressItem);
public:
int64_t bytes_received = 0;
int64_t estimated_length = 0;
};
// FIXME: This is only used on Android. Android is the only Chrome
// browser which shows a progress bar during loading.
// We should find a better way for Android to get this data and remove this!
class CORE_EXPORT ProgressTracker final
: public GarbageCollected<ProgressTracker> {
public:
explicit ProgressTracker(LocalFrame*);
ProgressTracker(const ProgressTracker&) = delete;
ProgressTracker& operator=(const ProgressTracker&) = delete;
~ProgressTracker();
void Trace(Visitor*) const;
void Dispose();
double EstimatedProgress() const;
void ProgressStarted();
void ProgressCompleted();
void FinishedParsing();
void DidFirstContentfulPaint();
void WillStartLoading(uint64_t identifier, ResourceLoadPriority);
void IncrementProgress(uint64_t identifier, const ResourceResponse&);
void IncrementProgress(uint64_t identifier, uint64_t);
void CompleteProgress(uint64_t identifier);
private:
LocalFrameClient* GetLocalFrameClient() const;
void UpdateProgressItem(ProgressItem& item,
int64_t bytes_received,
int64_t estimated_length);
void MaybeSendProgress();
void SendFinalProgress();
void Reset();
bool HaveParsedAndPainted();
Member<LocalFrame> frame_;
double last_notified_progress_value_;
double last_notified_progress_time_;
bool finished_parsing_;
bool did_first_contentful_paint_;
double progress_value_;
int64_t bytes_received_ = 0;
int64_t estimated_bytes_for_pending_requests_ = 0;
HashMap<uint64_t, ProgressItem> progress_items_;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_CORE_LOADER_PROGRESS_TRACKER_H_
|
