| // 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_ |