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1 // Copyright (c) 2009 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2009 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_EXTENSIONS_EXTENSION_FUNCTION_DISPATCHER_H_ | 5 #ifndef CHROME_BROWSER_EXTENSIONS_EXTENSION_FUNCTION_DISPATCHER_H_ |
6 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_FUNCTION_DISPATCHER_H_ | 6 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_FUNCTION_DISPATCHER_H_ |
7 | 7 |
8 #include <string> | 8 #include <string> |
9 #include <set> | 9 #include <set> |
10 #include <vector> | 10 #include <vector> |
11 | 11 |
12 #include "base/ref_counted.h" | 12 #include "base/ref_counted.h" |
13 #include "googleurl/src/gurl.h" | 13 #include "googleurl/src/gurl.h" |
14 | 14 |
15 class Browser; | 15 class Browser; |
16 class ExtensionFunction; | 16 class ExtensionFunction; |
| 17 class ExtensionHost; |
17 class Profile; | 18 class Profile; |
18 class RenderViewHost; | 19 class RenderViewHost; |
19 class RenderViewHostDelegate; | 20 class RenderViewHostDelegate; |
20 | 21 |
21 // A factory function for creating new ExtensionFunction instances. | 22 // A factory function for creating new ExtensionFunction instances. |
22 typedef ExtensionFunction* (*ExtensionFunctionFactory)(); | 23 typedef ExtensionFunction* (*ExtensionFunctionFactory)(); |
23 | 24 |
24 // ExtensionFunctionDispatcher receives requests to execute functions from | 25 // ExtensionFunctionDispatcher receives requests to execute functions from |
25 // Chromium extensions running in a RenderViewHost and dispatches them to the | 26 // Chromium extensions running in a RenderViewHost and dispatches them to the |
26 // appropriate handler. It lives entirely on the UI thread. | 27 // appropriate handler. It lives entirely on the UI thread. |
27 class ExtensionFunctionDispatcher { | 28 class ExtensionFunctionDispatcher { |
28 public: | 29 public: |
29 class Delegate { | 30 class Delegate { |
30 public: | 31 public: |
31 virtual Browser* GetBrowser() = 0; | 32 virtual Browser* GetBrowser() = 0; |
| 33 virtual ExtensionHost* GetExtensionHost() { return NULL; } |
32 }; | 34 }; |
33 | 35 |
34 // The peer object allows us to notify ExtensionFunctions when we are | 36 // The peer object allows us to notify ExtensionFunctions when we are |
35 // destroyed. | 37 // destroyed. |
36 struct Peer : public base::RefCounted<Peer> { | 38 struct Peer : public base::RefCounted<Peer> { |
37 Peer(ExtensionFunctionDispatcher* dispatcher) : dispatcher_(dispatcher) {} | 39 Peer(ExtensionFunctionDispatcher* dispatcher) : dispatcher_(dispatcher) {} |
38 ExtensionFunctionDispatcher* dispatcher_; | 40 ExtensionFunctionDispatcher* dispatcher_; |
39 }; | 41 }; |
40 | 42 |
41 // Gets a list of all known extension function names. | 43 // Gets a list of all known extension function names. |
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61 void HandleRequest(const std::string& name, const std::string& args, | 63 void HandleRequest(const std::string& name, const std::string& args, |
62 int request_id, bool has_callback); | 64 int request_id, bool has_callback); |
63 | 65 |
64 // Send a response to a function. | 66 // Send a response to a function. |
65 void SendResponse(ExtensionFunction* api, bool success); | 67 void SendResponse(ExtensionFunction* api, bool success); |
66 | 68 |
67 // Gets the browser extension functions should operate relative to. For | 69 // Gets the browser extension functions should operate relative to. For |
68 // example, for positioning windows, or alert boxes, or creating tabs. | 70 // example, for positioning windows, or alert boxes, or creating tabs. |
69 Browser* GetBrowser(); | 71 Browser* GetBrowser(); |
70 | 72 |
| 73 // Gets the ExtensionHost associated with this object. In the case of |
| 74 // tab hosted extension pages, this will return NULL. |
| 75 ExtensionHost* GetExtensionHost(); |
| 76 |
71 // Handle a malformed message. Possibly the result of an attack, so kill | 77 // Handle a malformed message. Possibly the result of an attack, so kill |
72 // the renderer. | 78 // the renderer. |
73 void HandleBadMessage(ExtensionFunction* api); | 79 void HandleBadMessage(ExtensionFunction* api); |
74 | 80 |
75 // Gets the URL for the view we're displaying. | 81 // Gets the URL for the view we're displaying. |
76 const GURL& url() { return url_; } | 82 const GURL& url() { return url_; } |
77 | 83 |
78 // Gets the ID for this extension. | 84 // Gets the ID for this extension. |
79 const std::string extension_id() { return url_.host(); } | 85 const std::string extension_id() { return url_.host(); } |
80 | 86 |
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95 | 101 |
96 // AutomationExtensionFunction requires access to the RenderViewHost | 102 // AutomationExtensionFunction requires access to the RenderViewHost |
97 // associated with us. We make it a friend rather than exposing the | 103 // associated with us. We make it a friend rather than exposing the |
98 // RenderViewHost as a public method as we wouldn't want everyone to | 104 // RenderViewHost as a public method as we wouldn't want everyone to |
99 // start assuming a 1:1 relationship between us and RenderViewHost, | 105 // start assuming a 1:1 relationship between us and RenderViewHost, |
100 // whereas AutomationExtensionFunction is by necessity "tight" with us. | 106 // whereas AutomationExtensionFunction is by necessity "tight" with us. |
101 friend class AutomationExtensionFunction; | 107 friend class AutomationExtensionFunction; |
102 }; | 108 }; |
103 | 109 |
104 #endif // CHROME_BROWSER_EXTENSIONS_EXTENSION_FUNCTION_DISPATCHER_H_ | 110 #endif // CHROME_BROWSER_EXTENSIONS_EXTENSION_FUNCTION_DISPATCHER_H_ |
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