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// Copyright (c) 2011 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_EXTENSIONS_WEBSTORE_INLINE_INSTALLER_H_
#define CHROME_BROWSER_EXTENSIONS_WEBSTORE_INLINE_INSTALLER_H_
#pragma once
#include <string>
#include "base/memory/ref_counted.h"
#include "base/memory/scoped_ptr.h"
#include "base/values.h"
#include "chrome/browser/extensions/extension_install_ui.h"
#include "chrome/browser/extensions/webstore_install_helper.h"
#include "content/browser/tab_contents/tab_contents_observer.h"
#include "content/common/net/url_fetcher.h"
#include "googleurl/src/gurl.h"
#include "third_party/skia/include/core/SkBitmap.h"
class TabContents;
class SafeWebstoreResponseParser;
// Manages inline installs requested by a page (downloads and parses metadata
// from the webstore, shows the install UI, starts the download once the user
// confirms). Clients must implement the WebstoreInlineInstaller::Delegate
// interface to be notified when the inline install completes (successfully or
// not). The client will not be notified if the TabContents that this install
// request is attached to goes away.
class WebstoreInlineInstaller
: public base::RefCountedThreadSafe<WebstoreInlineInstaller>,
public ExtensionInstallUI::Delegate,
public TabContentsObserver,
public URLFetcher::Delegate,
public WebstoreInstallHelper::Delegate {
public:
class Delegate {
public:
virtual void OnInlineInstallSuccess(int install_id) = 0;
virtual void OnInlineInstallFailure(int install_id,
const std::string& error) = 0;
};
WebstoreInlineInstaller(TabContents* tab_contents,
int install_id,
std::string webstore_item_id,
GURL requestor_url,
Delegate* d);
void BeginInstall();
private:
friend class base::RefCountedThreadSafe<WebstoreInlineInstaller>;
friend class SafeWebstoreResponseParser;
virtual ~WebstoreInlineInstaller();
// Several delegate/client inteface implementations follow. The normal flow
// (for successful installs) is:
//
// 1. BeginInstall: starts the fetch of data from the webstore
// 2. OnURLFetchComplete: starts the parsing of data from the webstore
// 3. OnWebstoreResponseParseSuccess: starts the parsing of the manifest and
// fetching of icon data.
// 4. OnWebstoreParseSuccess: shows the install UI
// 5. InstallUIProceed: initiates the .crx download/install
//
// All flows (whether successful or not) end up in CompleteInstall, which
// informs our delegate of success/failure.
// UrlFetcher::Delegate interface implementation.
virtual void OnURLFetchComplete(const URLFetcher* source) OVERRIDE;
// Client callbacks for SafeWebstoreResponseParser when parsing is complete.
void OnWebstoreResponseParseSuccess(DictionaryValue* webstore_data);
void OnWebstoreResponseParseFailure(const std::string& error);
// WebstoreInstallHelper::Delegate interface implementation.
virtual void OnWebstoreParseSuccess(
const SkBitmap& icon,
base::DictionaryValue* parsed_manifest) OVERRIDE;
virtual void OnWebstoreParseFailure(
InstallHelperResultCode result_code,
const std::string& error_message) OVERRIDE;
// ExtensionInstallUI::Delegate interface implementation.
virtual void InstallUIProceed() OVERRIDE;
virtual void InstallUIAbort(bool user_initiated) OVERRIDE;
// TabContentsObserver interface implementation.
virtual void TabContentsDestroyed(TabContents* tab_contents) OVERRIDE;
void CompleteInstall(const std::string& error);
int install_id_;
std::string id_;
GURL requestor_url_;
Delegate* delegate_;
// For fetching webstore JSON data.
scoped_ptr<URLFetcher> webstore_data_url_fetcher_;
// Extracted from the webstore JSON data response.
std::string localized_name_;
std::string localized_description_;
std::string localized_user_count_;
double average_rating_;
int rating_count_;
scoped_ptr<DictionaryValue> webstore_data_;
scoped_ptr<DictionaryValue> manifest_;
scoped_refptr<Extension> dummy_extension_;
SkBitmap icon_;
DISALLOW_IMPLICIT_CONSTRUCTORS(WebstoreInlineInstaller);
};
#endif // CHROME_BROWSER_EXTENSIONS_WEBSTORE_INLINE_INSTALLER_H_
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