content/public/browser/resource_dispatcher_host.h

   1 // Copyright (c) 2012 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_PUBLIC_BROWSER_RESOURCE_DISPATCHER_HOST_H_
   6 #define CONTENT_PUBLIC_BROWSER_RESOURCE_DISPATCHER_HOST_H_
   7
   8 #include "base/callback_forward.h"
   9 #include "base/memory/scoped_ptr.h"
  10 #include "content/public/browser/download_interrupt_reasons.h"
  11
  12 namespace net {
  13 class URLRequest;
  14 }
  15
  16 namespace content {
  17
  18 class DownloadItem;
  19 class ResourceContext;
  20 class ResourceDispatcherHostDelegate;
  21 struct DownloadSaveInfo;
  22 struct Referrer;
  23
  24 class CONTENT_EXPORT ResourceDispatcherHost {
  25  public:
  26   typedef base::Callback<void(DownloadItem*, DownloadInterruptReason)>
  27       DownloadStartedCallback;
  28
  29   // Returns the singleton instance of the ResourceDispatcherHost.
  30   static ResourceDispatcherHost* Get();
  31
  32   // This does not take ownership of the delegate. It is expected that the
  33   // delegate have a longer lifetime than the ResourceDispatcherHost.
  34   virtual void SetDelegate(ResourceDispatcherHostDelegate* delegate) = 0;
  35
  36   // Controls whether third-party sub-content can pop-up HTTP basic auth
  37   // dialog boxes.
  38   virtual void SetAllowCrossOriginAuthPrompt(bool value) = 0;
  39
  40   // Initiates a download by explicit request of the renderer (e.g. due to
  41   // alt-clicking a link) or some other chrome subsystem.
  42   // |is_content_initiated| is used to indicate that the request was generated
  43   // from a web page, and hence may not be as trustworthy as a browser
  44   // generated request.  If |download_id| is invalid, a download id will be
  45   // automatically assigned to the request, otherwise the specified download id
  46   // will be used.  (Note that this will result in re-use of an existing
  47   // download item if the download id was already assigned.)  If the download
  48   // is started, |started_callback| will be called on the UI thread with the
  49   // DownloadItem; otherwise an interrupt reason will be returned.
  50   virtual DownloadInterruptReason BeginDownload(
  51       scoped_ptr<net::URLRequest> request,
  52       const Referrer& referrer,
  53       bool is_content_initiated,
  54       ResourceContext* context,
  55       int child_id,
  56       int route_id,
  57       bool prefer_cache,
  58       scoped_ptr<DownloadSaveInfo> save_info,
  59       uint32 download_id,
  60       const DownloadStartedCallback& started_callback) = 0;
  61
  62   // Clears the ResourceDispatcherHostLoginDelegate associated with the request.
  63   virtual void ClearLoginDelegateForRequest(net::URLRequest* request) = 0;
  64
  65   // Causes all new requests for the route identified by |child_id| and
  66   // |route_id| to be blocked (not being started) until
  67   // ResumeBlockedRequestsForRoute is called.
  68   virtual void BlockRequestsForRoute(int child_id, int route_id) = 0;
  69
  70   // Resumes any blocked request for the specified route id.
  71   virtual void ResumeBlockedRequestsForRoute(int child_id, int route_id) = 0;
  72
  73  protected:
  74   virtual ~ResourceDispatcherHost() {}
  75 };
  76
  77 }  // namespace content
  78
  79 #endif  // CONTENT_PUBLIC_BROWSER_RESOURCE_DISPATCHER_HOST_H_