content/child/npapi/webplugin_resource_client.h

   1 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CONTENT_CHILD_NPAPI_WEBPLUGIN_RESOURCE_CLIENT_H_
   6 #define CONTENT_CHILD_NPAPI_WEBPLUGIN_RESOURCE_CLIENT_H_
   7
   8 #include <string>
   9
  10 #include "base/basictypes.h"
  11
  12 class GURL;
  13
  14 namespace content {
  15
  16 // Simpler version of ResourceHandleClient that lends itself to proxying.
  17 class WebPluginResourceClient {
  18  public:
  19   virtual ~WebPluginResourceClient() {}
  20
  21   virtual void WillSendRequest(const GURL& url, int http_status_code) = 0;
  22   // The request_is_seekable parameter indicates whether byte range requests
  23   // can be issued for the underlying stream.
  24   virtual void DidReceiveResponse(const std::string& mime_type,
  25                                   const std::string& headers,
  26                                   uint32 expected_length,
  27                                   uint32 last_modified,
  28                                   bool request_is_seekable) = 0;
  29   virtual void DidReceiveData(const char* buffer, int length,
  30                               int data_offset) = 0;
  31   // The resource ids passed here ensures that data for range requests
  32   // is cleared. This applies for seekable streams.
  33   virtual void DidFinishLoading(unsigned long resource_id) = 0;
  34   virtual void DidFail(unsigned long resource_id) = 0;
  35   virtual bool IsMultiByteResponseExpected() = 0;
  36   virtual int ResourceId() = 0;
  37   // Tells this object that it will get responses from multiple resources.
  38   // This is necessary since the plugin process uses a single instance of
  39   // PluginStreamUrl object for multiple range requests.
  40   virtual void AddRangeRequestResourceId(unsigned long resource_id) { }
  41 };
  42
  43 }  // namespace content
  44
  45 #endif  // CONTENT_CHILD_NPAPI_WEBPLUGIN_RESOURCE_CLIENT_H_