i18n_hooks_delegate.cc | Explore in Territory

// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "extensions/renderer/api/i18n_hooks_delegate.h"

#include <string_view>
#include <vector>

#include "base/check.h"
#include "base/i18n/rtl.h"
#include "base/metrics/histogram_macros.h"
#include "base/strings/string_util.h"
#include "content/public/renderer/render_frame.h"
#include "content/public/renderer/render_thread.h"
#include "extensions/common/extension.h"
#include "extensions/common/extension_id.h"
#include "extensions/common/message_bundle.h"
#include "extensions/renderer/bindings/api_binding_types.h"
#include "extensions/renderer/bindings/js_runner.h"
#include "extensions/renderer/extension_frame_helper.h"
#include "extensions/renderer/get_script_context.h"
#include "extensions/renderer/script_context.h"
#include "extensions/renderer/service_worker_data.h"
#include "extensions/renderer/shared_l10n_map.h"
#include "extensions/renderer/worker_thread_dispatcher.h"
#include "gin/converter.h"
#include "gin/data_object_builder.h"
#include "third_party/cld_3/src/src/nnet_language_identifier.h"
#include "v8/include/v8-container.h"
#include "v8/include/v8-context.h"
#include "v8/include/v8-exception.h"
#include "v8/include/v8-isolate.h"
#include "v8/include/v8-object.h"
#include "v8/include/v8-primitive.h"

namespace extensions {

namespace {

constexpr char kGetMessage[] = …;
constexpr char kGetUILanguage[] = …;
constexpr char kDetectLanguage[] = …;

// Max number of languages to detect.
const int kCldNumLangs = …;

// CLD3 minimum reliable byte threshold. Predictions for inputs below this size
// in bytes will be considered unreliable.
const int kCld3MinimumByteThreshold = …;

struct DetectedLanguage { … };

// LanguageDetectionResult object that holds detected langugae reliability and
// array of DetectedLanguage
struct LanguageDetectionResult { … };

v8::Local<v8::Value> DetectedLanguage::ToV8(v8::Isolate* isolate) const { … }

v8::Local<v8::Value> LanguageDetectionResult::ToV8(
    v8::Local<v8::Context> context) const { … }

void InitDetectedLanguages(
    const std::vector<chrome_lang_id::NNetLanguageIdentifier::Result>&
        lang_results,
    LanguageDetectionResult* result) { … }

// Returns the localized method for the given |message_name| and
// substitutions. This can result in a synchronous IPC being sent to the browser
// for the first call related to an extension in this process.
v8::Local<v8::Value> GetI18nMessage(const std::string& message_name,
                                    const ExtensionId& extension_id,
                                    v8::Local<v8::Value> v8_substitutions,
                                    v8::Local<v8::Value> v8_options,
                                    SharedL10nMap::IPCTarget* ipc_target,
                                    v8::Local<v8::Context> context) { … }

// Returns the detected language for the sample |text|.
v8::Local<v8::Value> DetectTextLanguage(v8::Local<v8::Context> context,
                                        const std::string& text) { … }

}  // namespace

RequestResult;

I18nHooksDelegate::I18nHooksDelegate() { … }
I18nHooksDelegate::~I18nHooksDelegate() = default;

RequestResult I18nHooksDelegate::HandleRequest(
    const std::string& method_name,
    const APISignature* signature,
    v8::Local<v8::Context> context,
    v8::LocalVector<v8::Value>* arguments,
    const APITypeReferenceMap& refs) { … }

RequestResult I18nHooksDelegate::HandleGetMessage(
    ScriptContext* script_context,
    const APISignature::V8ParseResult& parse_result) { … }

RequestResult I18nHooksDelegate::HandleGetUILanguage(
    ScriptContext* script_context,
    const APISignature::V8ParseResult& parse_result) { … }

RequestResult I18nHooksDelegate::HandleDetectLanguage(
    ScriptContext* script_context,
    const APISignature::V8ParseResult& parse_result) { … }

}  // namespace extensions
chromium/extensions/renderer/api/i18n_hooks_delegate.cc
