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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_RENDERER_EXTERNAL_HOST_BINDINGS_H_ | 5 #ifndef CHROME_RENDERER_EXTERNAL_HOST_BINDINGS_H_ |
6 #define CHROME_RENDERER_EXTERNAL_HOST_BINDINGS_H_ | 6 #define CHROME_RENDERER_EXTERNAL_HOST_BINDINGS_H_ |
7 #pragma once | 7 #pragma once |
8 | 8 |
9 #include "ipc/ipc_message.h" | 9 #include "ipc/ipc_sender.h" |
10 #include "webkit/glue/cpp_bound_class.h" | 10 #include "webkit/glue/cpp_bound_class.h" |
11 | 11 |
12 // ExternalHostBindings is the class backing the "externalHost" object | 12 // ExternalHostBindings is the class backing the "externalHost" object |
13 // accessible from Javascript | 13 // accessible from Javascript |
14 // | 14 // |
15 // We expose one function, for sending a message to the external host: | 15 // We expose one function, for sending a message to the external host: |
16 // postMessage(String message[, String target]); | 16 // postMessage(String message[, String target]); |
17 class ExternalHostBindings : public webkit_glue::CppBoundClass { | 17 class ExternalHostBindings : public webkit_glue::CppBoundClass { |
18 public: | 18 public: |
19 ExternalHostBindings(IPC::Message::Sender* sender, int routing_id); | 19 ExternalHostBindings(IPC::Sender* sender, int routing_id); |
20 virtual ~ExternalHostBindings(); | 20 virtual ~ExternalHostBindings(); |
21 | 21 |
22 // Invokes the registered onmessage handler. | 22 // Invokes the registered onmessage handler. |
23 // Returns true on successful invocation. | 23 // Returns true on successful invocation. |
24 bool ForwardMessageFromExternalHost(const std::string& message, | 24 bool ForwardMessageFromExternalHost(const std::string& message, |
25 const std::string& origin, | 25 const std::string& origin, |
26 const std::string& target); | 26 const std::string& target); |
27 | 27 |
28 // Overridden to hold onto a pointer back to the web frame. | 28 // Overridden to hold onto a pointer back to the web frame. |
29 void BindToJavascript(WebKit::WebFrame* frame, const std::string& classname); | 29 void BindToJavascript(WebKit::WebFrame* frame, const std::string& classname); |
30 | 30 |
31 private: | 31 private: |
32 // Creates an uninitialized instance of a MessageEvent object. | 32 // Creates an uninitialized instance of a MessageEvent object. |
33 // This is equivalent to calling window.document.createEvent("MessageEvent") | 33 // This is equivalent to calling window.document.createEvent("MessageEvent") |
34 // in javascript. | 34 // in javascript. |
35 bool CreateMessageEvent(NPObject** message_event); | 35 bool CreateMessageEvent(NPObject** message_event); |
36 | 36 |
37 // The postMessage() function provided to Javascript. | 37 // The postMessage() function provided to Javascript. |
38 void PostMessage(const webkit_glue::CppArgumentList& args, | 38 void PostMessage(const webkit_glue::CppArgumentList& args, |
39 webkit_glue::CppVariant* result); | 39 webkit_glue::CppVariant* result); |
40 | 40 |
41 webkit_glue::CppVariant on_message_handler_; | 41 webkit_glue::CppVariant on_message_handler_; |
42 WebKit::WebFrame* frame_; | 42 WebKit::WebFrame* frame_; |
43 IPC::Message::Sender* sender_; | 43 IPC::Sender* sender_; |
44 int routing_id_; | 44 int routing_id_; |
45 | 45 |
46 DISALLOW_COPY_AND_ASSIGN(ExternalHostBindings); | 46 DISALLOW_COPY_AND_ASSIGN(ExternalHostBindings); |
47 }; | 47 }; |
48 | 48 |
49 #endif // CHROME_RENDERER_EXTERNAL_HOST_BINDINGS_H_ | 49 #endif // CHROME_RENDERER_EXTERNAL_HOST_BINDINGS_H_ |
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