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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 friend class SimpleWebViewDialogTest; | |
72 | |
73 // Possible transitions between states: | |
74 // | |
75 // wp(ShowIfRedirected(), WAITING_FOR_REDIRECTION) = IDLE | |
76 // wp(Show(), DISPLAYED) = IDLE | WAITING_FOR_REDIRECTION | |
77 // wp(Close(), IDLE) = WAITING_FOR_REDIRECTION | DISPLAYED | |
78 // wp(OnRedirected(), DISPLAYED) = WAITING_FOR_REDIRECTION | |
79 // wp(OnOriginalURLLoaded(), IDLE) = WAITING_FOR_REDIRECTION | DISPLAYED | |
80 // | |
81 // where wp(E, S) is a weakest precondition (initial state) such | |
82 // that after execution of E the system will be surely in the state S. | |
83 enum State { | |
84 STATE_IDLE = 0, | |
85 STATE_WAITING_FOR_REDIRECTION, | |
86 STATE_DISPLAYED, | |
87 STATE_UNKNOWN | |
88 }; | |
89 | |
90 // Initializes |captive_portal_view_| if it is not initialized and | |
91 // starts loading Captive Portal redirect URL. | |
92 void InitCaptivePortalView(); | |
93 | |
94 // Returns symbolic state name based on internal state. | |
95 State GetState() const; | |
96 | |
97 // When |widget| is not NULL and the same as |widget_| stops to observe | |
98 // notifications from |widget_| and resets it. | |
99 void DetachFromWidget(views::Widget* widget); | |
100 | |
101 CaptivePortalView* captive_portal_view_for_testing() { | |
102 return captive_portal_view_for_testing_; | |
103 } | |
104 | |
105 // Not owned by this class. | |
106 Delegate* delegate_; | |
107 // Not owned by this class. | |
108 views::Widget* widget_; | |
109 scoped_ptr<CaptivePortalView> captive_portal_view_; | |
110 | |
111 // Not owned by this class. | |
112 content::WebContents* web_contents_; | |
113 | |
114 CaptivePortalView* captive_portal_view_for_testing_; | |
115 | |
116 DISALLOW_COPY_AND_ASSIGN(CaptivePortalWindowProxy); | |
117 }; | |
118 | |
119 } // namespace chromeos | |
120 | |
121 #endif // CHROME_BROWSER_CHROMEOS_LOGIN_CAPTIVE_PORTAL_WINDOW_PROXY_H_ | |
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