From e3c404b92dcfc8e45225039ad5d2a9cff844cb4e Mon Sep 17 00:00:00 2001 From: "jcampan@chromium.org" Date: Tue, 23 Dec 2008 01:07:32 +0000 Subject: New attempt at landing the resource_dispatcher_host.cc splitting (broke the build on Friday). TBR=darin Review URL: http://codereview.chromium.org/15801 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@7400 0039d316-1c4b-4281-b951-d872f2087c98 --- .../renderer_host/download_resource_handler.h | 75 ++++++++++++++++++++++ 1 file changed, 75 insertions(+) create mode 100644 chrome/browser/renderer_host/download_resource_handler.h (limited to 'chrome/browser/renderer_host/download_resource_handler.h') diff --git a/chrome/browser/renderer_host/download_resource_handler.h b/chrome/browser/renderer_host/download_resource_handler.h new file mode 100644 index 0000000..52f6c94 --- /dev/null +++ b/chrome/browser/renderer_host/download_resource_handler.h @@ -0,0 +1,75 @@ +// Copyright (c) 2006-2008 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 CHROME_BROWSER_RENDERER_HOST_DOWNLOAD_RESOURCE_HANDLER_H_ +#define CHROME_BROWSER_RENDERER_HOST_DOWNLOAD_RESOURCE_HANDLER_H_ + +#include + +#include "chrome/browser/renderer_host/resource_dispatcher_host.h" +#include "chrome/browser/renderer_host/resource_handler.h" + +struct DownloadBuffer; + +// Forwards data to the download thread. +class DownloadResourceHandler : public ResourceHandler { + public: + DownloadResourceHandler(ResourceDispatcherHost* rdh, + int render_process_host_id, + int render_view_id, + int request_id, + const std::string& url, + DownloadFileManager* manager, + URLRequest* request, + bool save_as); + + // Not needed, as this event handler ought to be the final resource. + bool OnRequestRedirected(int request_id, const GURL& url); + + // Send the download creation information to the download thread. + bool OnResponseStarted(int request_id, ResourceResponse* response); + + // Create a new buffer, which will be handed to the download thread for file + // writing and deletion. + bool OnWillRead(int request_id, char** buf, int* buf_size, int min_size); + + bool OnReadCompleted(int request_id, int* bytes_read); + + bool OnResponseCompleted(int request_id, const URLRequestStatus& status); + + // If the content-length header is not present (or contains something other + // than numbers), the incoming content_length is -1 (unknown size). + // Set the content length to 0 to indicate unknown size to DownloadManager. + void set_content_length(const int64& content_length); + + void set_content_disposition(const std::string& content_disposition); + + void CheckWriteProgress(); + + private: + void StartPauseTimer(); + + int download_id_; + ResourceDispatcherHost::GlobalRequestID global_id_; + int render_view_id_; + char* read_buffer_; + std::string content_disposition_; + std::wstring url_; + int64 content_length_; + DownloadFileManager* download_manager_; + URLRequest* request_; + bool save_as_; // Request was initiated via "Save As" by the user. + DownloadBuffer* buffer_; + ResourceDispatcherHost* rdh_; + bool is_paused_; + base::OneShotTimer pause_timer_; + + static const int kReadBufSize = 32768; // bytes + static const int kLoadsToWrite = 100; // number of data buffers queued + static const int kThrottleTimeMs = 200; // milliseconds + + DISALLOW_COPY_AND_ASSIGN(DownloadResourceHandler); +}; + +#endif // CHROME_BROWSER_RENDERER_HOST_DOWNLOAD_RESOURCE_HANDLER_H_ -- cgit v1.1