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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_BASE_SCREEN_HANDLER_H_ | 5 #ifndef CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_BASE_SCREEN_HANDLER_H_ |
6 #define CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_BASE_SCREEN_HANDLER_H_ | 6 #define CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_BASE_SCREEN_HANDLER_H_ |
7 | 7 |
8 #include <string> | 8 #include <string> |
9 | 9 |
10 #include "base/bind.h" | 10 #include "base/bind.h" |
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58 // via virtual Initialize() method (see below). | 58 // via virtual Initialize() method (see below). |
59 void InitializeBase(); | 59 void InitializeBase(); |
60 | 60 |
61 void set_async_assets_load_id(const std::string& async_assets_load_id) { | 61 void set_async_assets_load_id(const std::string& async_assets_load_id) { |
62 async_assets_load_id_ = async_assets_load_id; | 62 async_assets_load_id_ = async_assets_load_id; |
63 } | 63 } |
64 const std::string& async_assets_load_id() const { | 64 const std::string& async_assets_load_id() const { |
65 return async_assets_load_id_; | 65 return async_assets_load_id_; |
66 } | 66 } |
67 | 67 |
68 protected: | |
69 // All subclasses should implement this method to provide localized values. | |
70 virtual void DeclareLocalizedValues( | |
71 ::login::LocalizedValuesBuilder* builder) = 0; | |
72 | |
73 // All subclasses should implement this method to register callbacks for JS | |
74 // messages. | |
75 // | |
76 // TODO (ygorshenin, crbug.com/433797): make this method purely vrtual when | |
77 // all screens will be switched to use ScreenContext. | |
78 virtual void DeclareJSCallbacks() {} | |
79 | |
80 // Subclasses can override these methods to pass additional parameters | |
81 // to loadTimeData. Generally, it is a bad approach, and it should be replaced | |
82 // with Context at some point. | |
83 virtual void GetAdditionalParameters(base::DictionaryValue* parameters); | |
84 | |
85 // Shortcut for calling JS methods on WebUI side. | 68 // Shortcut for calling JS methods on WebUI side. |
86 void CallJS(const std::string& method); | 69 void CallJS(const std::string& method); |
87 | 70 |
88 template<typename A1> | 71 template<typename A1> |
89 void CallJS(const std::string& method, const A1& arg1) { | 72 void CallJS(const std::string& method, const A1& arg1) { |
90 web_ui()->CallJavascriptFunctionUnsafe(FullMethodPath(method), | 73 web_ui()->CallJavascriptFunctionUnsafe(FullMethodPath(method), |
91 ::login::MakeValue(arg1)); | 74 ::login::MakeValue(arg1)); |
92 } | 75 } |
93 | 76 |
94 template<typename A1, typename A2> | 77 template<typename A1, typename A2> |
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113 const A1& arg1, | 96 const A1& arg1, |
114 const A2& arg2, | 97 const A2& arg2, |
115 const A3& arg3, | 98 const A3& arg3, |
116 const A4& arg4) { | 99 const A4& arg4) { |
117 web_ui()->CallJavascriptFunctionUnsafe( | 100 web_ui()->CallJavascriptFunctionUnsafe( |
118 FullMethodPath(method), ::login::MakeValue(arg1), | 101 FullMethodPath(method), ::login::MakeValue(arg1), |
119 ::login::MakeValue(arg2), ::login::MakeValue(arg3), | 102 ::login::MakeValue(arg2), ::login::MakeValue(arg3), |
120 ::login::MakeValue(arg4)); | 103 ::login::MakeValue(arg4)); |
121 } | 104 } |
122 | 105 |
| 106 protected: |
| 107 // All subclasses should implement this method to provide localized values. |
| 108 virtual void DeclareLocalizedValues( |
| 109 ::login::LocalizedValuesBuilder* builder) = 0; |
| 110 |
| 111 // All subclasses should implement this method to register callbacks for JS |
| 112 // messages. |
| 113 // |
| 114 // TODO (ygorshenin, crbug.com/433797): make this method purely vrtual when |
| 115 // all screens will be switched to use ScreenContext. |
| 116 virtual void DeclareJSCallbacks() {} |
| 117 |
| 118 // Subclasses can override these methods to pass additional parameters |
| 119 // to loadTimeData. Generally, it is a bad approach, and it should be replaced |
| 120 // with Context at some point. |
| 121 virtual void GetAdditionalParameters(base::DictionaryValue* parameters); |
| 122 |
123 // Shortcut methods for adding WebUI callbacks. | 123 // Shortcut methods for adding WebUI callbacks. |
124 template<typename T> | 124 template<typename T> |
125 void AddRawCallback(const std::string& name, | 125 void AddRawCallback(const std::string& name, |
126 void (T::*method)(const base::ListValue* args)) { | 126 void (T::*method)(const base::ListValue* args)) { |
127 web_ui()->RegisterMessageCallback( | 127 web_ui()->RegisterMessageCallback( |
128 name, | 128 name, |
129 base::Bind(method, base::Unretained(static_cast<T*>(this)))); | 129 base::Bind(method, base::Unretained(static_cast<T*>(this)))); |
130 } | 130 } |
131 | 131 |
132 template<typename T, typename... Args> | 132 template<typename T, typename... Args> |
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194 | 194 |
195 // Pending changes to context which will be sent when the page will be ready. | 195 // Pending changes to context which will be sent when the page will be ready. |
196 base::DictionaryValue pending_context_changes_; | 196 base::DictionaryValue pending_context_changes_; |
197 | 197 |
198 DISALLOW_COPY_AND_ASSIGN(BaseScreenHandler); | 198 DISALLOW_COPY_AND_ASSIGN(BaseScreenHandler); |
199 }; | 199 }; |
200 | 200 |
201 } // namespace chromeos | 201 } // namespace chromeos |
202 | 202 |
203 #endif // CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_BASE_SCREEN_HANDLER_H_ | 203 #endif // CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_BASE_SCREEN_HANDLER_H_ |
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