1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
|
// 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_ALTERNATE_NAV_URL_FETCHER_H__
#define CHROME_BROWSER_ALTERNATE_NAV_URL_FETCHER_H__
#include <string>
#include "chrome/browser/url_fetcher.h"
#include "chrome/common/notification_service.h"
class NavigationController;
// Attempts to get the HEAD of a host name and displays an info bar if the
// request was successful. This is used for single-word queries where we can't
// tell if the entry was a search or an intranet hostname. The autocomplete bar
// assumes it's a query and issues an AlternateNavURLFetcher to display a "did
// you mean" infobar suggesting a navigation.
class AlternateNavURLFetcher : public NotificationObserver,
public URLFetcher::Delegate {
public:
enum State {
NOT_STARTED,
IN_PROGRESS,
SUCCEEDED,
FAILED,
};
explicit AlternateNavURLFetcher(const std::wstring& alternate_nav_url);
virtual ~AlternateNavURLFetcher();
State state() const { return state_; }
// Called by the NavigationController when it successfully navigates to the
// entry for which the fetcher is looking up an alternative.
// NOTE: This can be theoretically called multiple times, if multiple
// navigations with the same unique ID succeed.
void OnNavigatedToEntry();
// NotificationObserver
virtual void Observe(NotificationType type,
const NotificationSource& source,
const NotificationDetails& details);
// URLFetcher::Delegate
virtual void OnURLFetchComplete(const URLFetcher* source,
const GURL& url,
const URLRequestStatus& status,
int response_code,
const ResponseCookies& cookies,
const std::string& data);
private:
void ShowInfobar();
std::wstring alternate_nav_url_;
scoped_ptr<URLFetcher> fetcher_;
NavigationController* controller_;
State state_;
bool navigated_to_entry_;
DISALLOW_EVIL_CONSTRUCTORS(AlternateNavURLFetcher);
};
#endif // CHROME_BROWSER_ALTERNATE_NAV_URL_FETCHER_H__
|
