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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 #include "chrome/renderer/extensions/i18n_custom_bindings.h" | |
| 6 | |
| 7 #include "base/bind.h" | |
| 8 #include "content/public/renderer/render_thread.h" | |
| 9 #include "content/public/renderer/render_view.h" | |
| 10 #include "extensions/common/extension_messages.h" | |
| 11 #include "extensions/common/message_bundle.h" | |
| 12 #include "grit/renderer_resources.h" | |
| 13 #include "v8/include/v8.h" | |
| 14 | |
| 15 namespace extensions { | |
| 16 | |
| 17 I18NCustomBindings::I18NCustomBindings(Dispatcher* dispatcher, | |
| 18 ChromeV8Context* context) | |
| 19 : ChromeV8Extension(dispatcher, context) { | |
| 20 RouteFunction("GetL10nMessage", | |
| 21 base::Bind(&I18NCustomBindings::GetL10nMessage, base::Unretained(this))); | |
| 22 RouteFunction("GetL10nUILanguage", | |
| 23 base::Bind(&I18NCustomBindings::GetL10nUILanguage, | |
| 24 base::Unretained(this))); | |
| 25 } | |
| 26 | |
| 27 void I18NCustomBindings::GetL10nMessage( | |
| 28 const v8::FunctionCallbackInfo<v8::Value>& args) { | |
| 29 if (args.Length() != 3 || !args[0]->IsString()) { | |
| 30 NOTREACHED() << "Bad arguments"; | |
| 31 return; | |
| 32 } | |
| 33 | |
| 34 std::string extension_id; | |
| 35 if (args[2]->IsNull() || !args[2]->IsString()) { | |
| 36 return; | |
| 37 } else { | |
| 38 extension_id = *v8::String::Utf8Value(args[2]->ToString()); | |
| 39 if (extension_id.empty()) | |
| 40 return; | |
| 41 } | |
| 42 | |
| 43 L10nMessagesMap* l10n_messages = GetL10nMessagesMap(extension_id); | |
| 44 if (!l10n_messages) { | |
| 45 // Get the current RenderView so that we can send a routed IPC message | |
| 46 // from the correct source. | |
| 47 content::RenderView* renderview = GetRenderView(); | |
| 48 if (!renderview) | |
| 49 return; | |
| 50 | |
| 51 L10nMessagesMap messages; | |
| 52 // A sync call to load message catalogs for current extension. | |
| 53 renderview->Send(new ExtensionHostMsg_GetMessageBundle( | |
| 54 extension_id, &messages)); | |
| 55 | |
| 56 // Save messages we got. | |
| 57 ExtensionToL10nMessagesMap& l10n_messages_map = | |
| 58 *GetExtensionToL10nMessagesMap(); | |
| 59 l10n_messages_map[extension_id] = messages; | |
| 60 | |
| 61 l10n_messages = GetL10nMessagesMap(extension_id); | |
| 62 } | |
| 63 | |
| 64 std::string message_name = *v8::String::Utf8Value(args[0]); | |
| 65 std::string message = | |
| 66 MessageBundle::GetL10nMessage(message_name, *l10n_messages); | |
| 67 | |
| 68 v8::Isolate* isolate = args.GetIsolate(); | |
| 69 std::vector<std::string> substitutions; | |
| 70 if (args[1]->IsArray()) { | |
| 71 // chrome.i18n.getMessage("message_name", ["more", "params"]); | |
| 72 v8::Local<v8::Array> placeholders = v8::Local<v8::Array>::Cast(args[1]); | |
| 73 uint32_t count = placeholders->Length(); | |
| 74 if (count > 9) | |
| 75 return; | |
| 76 for (uint32_t i = 0; i < count; ++i) { | |
| 77 substitutions.push_back( | |
| 78 *v8::String::Utf8Value( | |
| 79 placeholders->Get(v8::Integer::New(isolate, i))->ToString())); | |
| 80 } | |
| 81 } else if (args[1]->IsString()) { | |
| 82 // chrome.i18n.getMessage("message_name", "one param"); | |
| 83 substitutions.push_back(*v8::String::Utf8Value(args[1]->ToString())); | |
| 84 } | |
| 85 | |
| 86 args.GetReturnValue().Set( | |
| 87 v8::String::NewFromUtf8(isolate, ReplaceStringPlaceholders( | |
| 88 message, substitutions, NULL).c_str())); | |
| 89 } | |
| 90 | |
| 91 void I18NCustomBindings::GetL10nUILanguage( | |
| 92 const v8::FunctionCallbackInfo<v8::Value>& args) { | |
| 93 args.GetReturnValue().Set(v8::String::NewFromUtf8( | |
| 94 args.GetIsolate(), content::RenderThread::Get()->GetLocale().c_str())); | |
| 95 } | |
| 96 | |
| 97 } // namespace extensions | |
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