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// Copyright (c) 2012 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.
// This class pairs with DownloadController on Java side to forward requests
// for GET downloads to the current DownloadListener. POST downloads are
// handled on the native side.
//
// Both classes are Singleton classes. C++ object owns Java object.
//
// Call sequence
// GET downloads:
// DownloadController::NewGetDownload() =>
// DownloadController.newHttpGetDownload() =>
// DownloadListener.onDownloadStart() /
// DownloadListener2.requestHttpGetDownload()
//
#ifndef CONTENT_BROWSER_ANDROID_DOWNLOAD_CONTROLLER_H_
#define CONTENT_BROWSER_ANDROID_DOWNLOAD_CONTROLLER_H_
#pragma once
#include <string>
#include "base/android/jni_helper.h"
#include "base/memory/singleton.h"
#include "content/public/browser/download_item.h"
#include "googleurl/src/gurl.h"
#include "net/cookies/cookie_monster.h"
namespace net {
class URLRequest;
}
namespace content {
struct GlobalRequestID;
class RenderViewHost;
class WebContents;
class DownloadController : public DownloadItem::Observer {
public:
static bool RegisterDownloadController(JNIEnv* env);
static DownloadController* GetInstance();
// Called when DownloadController Java object is instantiated.
void Init(JNIEnv* env, jobject obj);
// Starts a new download request with Android. Should be called on the
// UI thread.
void CreateGETDownload(RenderViewHost* source,
int request_id);
// Should be called when a POST download is started. Notifies the embedding
// app about the download. Called on the UI thread.
void OnPostDownloadStarted(WebContents* web_contents,
DownloadItem* download_item);
// DownloadItem::Observer interface.
virtual void OnDownloadUpdated(DownloadItem* item) OVERRIDE;
virtual void OnDownloadOpened(DownloadItem* item) OVERRIDE;
private:
// Used to store all the information about an Android download.
struct DownloadInfoAndroid {
explicit DownloadInfoAndroid(net::URLRequest* request);
~DownloadInfoAndroid() {}
// The URL from which we are downloading. This is the final URL after any
// redirection by the server for |original_url_|.
GURL url;
// The original URL before any redirection by the server for this URL.
GURL original_url;
int64 total_bytes;
std::string content_disposition;
std::string original_mime_type;
std::string user_agent;
std::string cookie;
WebContents* web_contents;
// Default copy constructor is used for passing this struct by value.
};
struct JavaObject;
friend struct DefaultSingletonTraits<DownloadController>;
DownloadController();
virtual ~DownloadController();
void PrepareDownloadInfo(const GlobalRequestID& global_id,
int render_process_id,
int render_view_id);
void CheckPolicyAndLoadCookies(const DownloadInfoAndroid& info,
int render_process_id,
int render_view_id,
const GlobalRequestID& global_id,
const net::CookieList& cookie_list);
void DoLoadCookies(const DownloadInfoAndroid& info,
int render_process_id,
int render_view_id,
const GlobalRequestID& global_id);
void OnCookieResponse(DownloadInfoAndroid info,
int render_process_id,
int render_view_id,
const std::string& cookie);
void StartAndroidDownload(const DownloadInfoAndroid& info,
int render_process_id,
int render_view_id);
jobject GetContentViewFromWebContents(WebContents* web_contents);
jobject GetContentView(int render_process_id, int render_view_id);
// Creates Java object if it is not created already and returns it.
JavaObject* GetJavaObject();
JavaObject* java_object_;
DISALLOW_COPY_AND_ASSIGN(DownloadController);
};
} // namespace content
#endif // CONTENT_BROWSER_ANDROID_DOWNLOAD_CONTROLLER_H_
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