Upstream version 5.34.104.0
[platform/framework/web/crosswalk.git] / src / chrome / browser / chromeos / login / captive_portal_window_proxy.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 CHROME_BROWSER_CHROMEOS_LOGIN_CAPTIVE_PORTAL_WINDOW_PROXY_H_
6 #define CHROME_BROWSER_CHROMEOS_LOGIN_CAPTIVE_PORTAL_WINDOW_PROXY_H_
7
8 #include "base/compiler_specific.h"
9 #include "base/memory/scoped_ptr.h"
10 #include "ui/views/widget/widget_observer.h"
11
12 namespace content {
13 class WebContents;
14 }
15
16 namespace views {
17 class Widget;
18 }
19
20 namespace chromeos {
21
22 class CaptivePortalView;
23
24 // Delegate interface for CaptivePortalWindowProxy.
25 class CaptivePortalWindowProxyDelegate {
26  public:
27   // Called when a captive portal is detected.
28   virtual void OnPortalDetected() = 0;
29
30  protected:
31   virtual ~CaptivePortalWindowProxyDelegate() {}
32 };
33
34 // Proxy which manages showing of the window for CaptivePortal sign-in.
35 class CaptivePortalWindowProxy : public views::WidgetObserver {
36  public:
37   typedef CaptivePortalWindowProxyDelegate Delegate;
38
39   CaptivePortalWindowProxy(Delegate* delegate,
40                            content::WebContents* web_contents);
41   virtual ~CaptivePortalWindowProxy();
42
43   // Shows captive portal window only after a redirection has happened. So it is
44   // safe to call this method, when the caller isn't 100% sure that the network
45   // is in the captive portal state.
46   // Subsequent call to this method would reuses existing view
47   // but reloads test page (generate_204).
48   void ShowIfRedirected();
49
50   // Forces captive portal window show.
51   void Show();
52
53   // Closes the window.
54   void Close();
55
56   // Called by CaptivePortalView when URL loading was redirected from the
57   // original URL.
58   void OnRedirected();
59
60   // Called by CaptivePortalView when origin URL is loaded without any
61   // redirections.
62   void OnOriginalURLLoaded();
63
64   // Overridden from views::WidgetObserver:
65   virtual void OnWidgetClosing(views::Widget* widget) OVERRIDE;
66   virtual void OnWidgetDestroying(views::Widget* widget) OVERRIDE;
67   virtual void OnWidgetDestroyed(views::Widget* widget) OVERRIDE;
68
69  private:
70   friend class CaptivePortalWindowTest;
71
72   // Possible transitions between states:
73   //
74   // wp(ShowIfRedirected(), WAITING_FOR_REDIRECTION) = IDLE
75   // wp(Show(), DISPLAYED) = IDLE | WAITING_FOR_REDIRECTION
76   // wp(Close(), IDLE) = WAITING_FOR_REDIRECTION | DISPLAYED
77   // wp(OnRedirected(), DISPLAYED) = WAITING_FOR_REDIRECTION
78   // wp(OnOriginalURLLoaded(), IDLE) = WAITING_FOR_REDIRECTION | DISPLAYED
79   //
80   // where wp(E, S) is a weakest precondition (initial state) such
81   // that after execution of E the system will be surely in the state S.
82   enum State {
83     STATE_IDLE = 0,
84     STATE_WAITING_FOR_REDIRECTION,
85     STATE_DISPLAYED,
86     STATE_UNKNOWN
87   };
88
89   // Initializes |captive_portal_view_| if it is not initialized and
90   // starts loading Captive Portal redirect URL.
91   void InitCaptivePortalView();
92
93   // Returns symbolic state name based on internal state.
94   State GetState() const;
95
96   // When |widget| is not NULL and the same as |widget_| stops to observe
97   // notifications from |widget_| and resets it.
98   void DetachFromWidget(views::Widget* widget);
99
100   // Not owned by this class.
101   Delegate* delegate_;
102   // Not owned by this class.
103   views::Widget* widget_;
104   scoped_ptr<CaptivePortalView> captive_portal_view_;
105
106   // Not owned by this class.
107   content::WebContents* web_contents_;
108
109   DISALLOW_COPY_AND_ASSIGN(CaptivePortalWindowProxy);
110 };
111
112 }  // namespace chromeos
113
114 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_CAPTIVE_PORTAL_WINDOW_PROXY_H_