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
|
// Copyright 2016 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 PDF_URL_LOADER_WRAPPER_H_
#define PDF_URL_LOADER_WRAPPER_H_
#include <string>
#include "base/macros.h"
#include "ppapi/cpp/completion_callback.h"
namespace chrome_pdf {
class URLLoaderWrapper {
public:
virtual ~URLLoaderWrapper() {}
// Returns length of content, will be -1, if it is unknown.
virtual int GetContentLength() const = 0;
// Returns if the response headers contains "accept-ranges".
virtual bool IsAcceptRangesBytes() const = 0;
// Returns if the content encoded in response.
virtual bool IsContentEncoded() const = 0;
// Returns response content type.
virtual std::string GetContentType() const = 0;
// Returns response content disposition.
virtual std::string GetContentDisposition() const = 0;
// Returns response status code.
virtual int GetStatusCode() const = 0;
// Returns if the response contains multi parts.
virtual bool IsMultipart() const = 0;
// If true, |start| contains the start of the byte range.
// If false, response contains full document and |start| will be undefined.
virtual bool GetByteRangeStart(int* start) const = 0;
// Close connection.
virtual void Close() = 0;
// Open new connection and send http range request.
virtual void OpenRange(const std::string& url,
const std::string& referrer_url,
uint32_t position,
uint32_t size,
const pp::CompletionCallback& cc) = 0;
// Read the response body. The size of the buffer must be large enough to
// hold the specified number of bytes to read.
// This function might perform a partial read.
virtual void ReadResponseBody(char* buffer,
int buffer_size,
const pp::CompletionCallback& cc) = 0;
// Returns the current download progress.
// Progress only refers to the response body and does not include the headers.
// If false, progress is unknown, bytes_received/total_bytes_to_be_received
// will be undefined.
virtual bool GetDownloadProgress(
int64_t* bytes_received,
int64_t* total_bytes_to_be_received) const = 0;
};
} // namespace chrome_pdf
#endif // PDF_URL_LOADER_WRAPPER_H_
|
