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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/renderer/extensions/i18n_custom_bindings.h"
#include "base/bind.h"
#include "chrome/common/extensions/extension_messages.h"
#include "chrome/common/extensions/message_bundle.h"
#include "content/public/renderer/render_view.h"
#include "grit/renderer_resources.h"
#include "v8/include/v8.h"
namespace extensions {
I18NCustomBindings::I18NCustomBindings(Dispatcher* dispatcher,
v8::Handle<v8::Context> context)
: ChromeV8Extension(dispatcher, context) {
RouteFunction("GetL10nMessage",
base::Bind(&I18NCustomBindings::GetL10nMessage, base::Unretained(this)));
}
v8::Handle<v8::Value> I18NCustomBindings::GetL10nMessage(
const v8::Arguments& args) {
if (args.Length() != 3 || !args[0]->IsString()) {
NOTREACHED() << "Bad arguments";
return v8::Undefined();
}
std::string extension_id;
if (args[2]->IsNull() || !args[2]->IsString()) {
return v8::Undefined();
} else {
extension_id = *v8::String::Utf8Value(args[2]->ToString());
if (extension_id.empty())
return v8::Undefined();
}
L10nMessagesMap* l10n_messages = GetL10nMessagesMap(extension_id);
if (!l10n_messages) {
// Get the current RenderView so that we can send a routed IPC message
// from the correct source.
content::RenderView* renderview = GetRenderView();
if (!renderview)
return v8::Undefined();
L10nMessagesMap messages;
// A sync call to load message catalogs for current extension.
renderview->Send(new ExtensionHostMsg_GetMessageBundle(
extension_id, &messages));
// Save messages we got.
ExtensionToL10nMessagesMap& l10n_messages_map =
*GetExtensionToL10nMessagesMap();
l10n_messages_map[extension_id] = messages;
l10n_messages = GetL10nMessagesMap(extension_id);
}
std::string message_name = *v8::String::AsciiValue(args[0]);
std::string message =
MessageBundle::GetL10nMessage(message_name, *l10n_messages);
std::vector<std::string> substitutions;
if (args[1]->IsArray()) {
// chrome.i18n.getMessage("message_name", ["more", "params"]);
v8::Local<v8::Array> placeholders = v8::Local<v8::Array>::Cast(args[1]);
uint32_t count = placeholders->Length();
if (count > 9)
return v8::Undefined();
for (uint32_t i = 0; i < count; ++i) {
substitutions.push_back(
*v8::String::Utf8Value(
placeholders->Get(v8::Integer::New(i))->ToString()));
}
} else if (args[1]->IsString()) {
// chrome.i18n.getMessage("message_name", "one param");
substitutions.push_back(*v8::String::Utf8Value(args[1]->ToString()));
}
return v8::String::New(ReplaceStringPlaceholders(
message, substitutions, NULL).c_str());
}
} // namespace extension
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