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// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/ash/input_method/native_input_method_engine.h"
#include <utility>
#include "ash/constants/ash_features.h"
#include "ash/lobster/lobster_controller.h"
#include "base/feature_list.h"
#include "base/metrics/histogram_macros.h"
#include "chrome/browser/ash/input_method/assistive_suggester_client_filter.h"
#include "chrome/browser/ash/input_method/assistive_suggester_switch.h"
#include "chrome/browser/ash/input_method/autocorrect_manager.h"
#include "chrome/browser/ash/input_method/editor_mediator_factory.h"
#include "chrome/browser/ash/input_method/get_current_window_properties.h"
#include "chrome/browser/ash/input_method/grammar_service_client.h"
#include "chrome/browser/ash/input_method/native_input_method_engine_observer.h"
#include "chrome/browser/ash/input_method/suggestions_service_client.h"
#include "chrome/browser/ash/lobster/lobster_event_sink.h"
#include "chrome/browser/ash/lobster/lobster_service_provider.h"
#include "chrome/browser/ui/ash/input_method/input_method_menu_manager.h"
#include "chromeos/constants/chromeos_features.h"
#include "components/prefs/pref_service.h"
#include "ui/base/ime/ash/input_method_manager.h"
namespace ash {
namespace input_method {
namespace {
bool ShouldRouteToFirstPartyVietnameseInput(std::string_view engine_id) {
return base::FeatureList::IsEnabled(features::kFirstPartyVietnameseInput) &&
(engine_id == "vkd_vi_vni" || engine_id == "vkd_vi_telex");
}
} // namespace
NativeInputMethodEngine::NativeInputMethodEngine()
: NativeInputMethodEngine(/*use_ime_service=*/true) {}
NativeInputMethodEngine::NativeInputMethodEngine(bool use_ime_service)
: use_ime_service_(use_ime_service) {}
// static
std::unique_ptr<NativeInputMethodEngine>
NativeInputMethodEngine::CreateForTesting(bool use_ime_service) {
return base::WrapUnique<NativeInputMethodEngine>(
new NativeInputMethodEngine(use_ime_service));
}
NativeInputMethodEngine::~NativeInputMethodEngine() = default;
NativeInputMethodEngine::NativeInputMethodEngine(
std::unique_ptr<AssistiveSuggesterSwitch> suggester_switch)
: suggester_switch_(std::move(suggester_switch)) {}
void NativeInputMethodEngine::Initialize(
std::unique_ptr<InputMethodEngineObserver> observer,
const char* extension_id,
Profile* profile) {
// TODO(crbug.com/40154142): refactor the mix of unique and raw ptr here.
std::unique_ptr<AssistiveSuggester> assistive_suggester =
std::make_unique<AssistiveSuggester>(
this, profile,
suggester_switch_
? std::move(suggester_switch_)
: std::make_unique<AssistiveSuggesterClientFilter>(
base::BindRepeating(&GetFocusedTabUrl),
base::BindRepeating(&GetFocusedWindowProperties)));
assistive_suggester_ = assistive_suggester.get();
std::unique_ptr<AutocorrectManager> autocorrect_manager =
std::make_unique<AutocorrectManager>(this, profile);
autocorrect_manager_ = autocorrect_manager.get();
auto suggestions_service_client =
base::FeatureList::IsEnabled(features::kAssistMultiWord)
? std::make_unique<SuggestionsServiceClient>()
: nullptr;
auto suggestions_collector =
base::FeatureList::IsEnabled(features::kAssistMultiWord)
? std::make_unique<SuggestionsCollector>(
assistive_suggester_, std::move(suggestions_service_client))
: nullptr;
EditorMediator* editor_event_sink =
chromeos::features::IsOrcaEnabled()
? EditorMediatorFactory::GetInstance()->GetForProfile(profile)
: nullptr;
LobsterEventSink* lobster_event_sink =
ash::features::IsLobsterEnabled()
? LobsterServiceProvider::GetForProfile(profile)
: nullptr;
chrome_keyboard_controller_client_observer_.Observe(
ChromeKeyboardControllerClient::Get());
// Wrap the given observer in our observer that will decide whether to call
// Mojo directly or forward to the extension.
auto native_observer = std::make_unique<NativeInputMethodEngineObserver>(
profile->GetPrefs(), editor_event_sink, lobster_event_sink,
std::move(observer), std::move(assistive_suggester),
std::move(autocorrect_manager), std::move(suggestions_collector),
std::make_unique<GrammarManager>(
profile, std::make_unique<GrammarServiceClient>(), this),
use_ime_service_);
InputMethodEngine::Initialize(std::move(native_observer), extension_id,
profile);
}
bool NativeInputMethodEngine::ShouldRouteToNativeMojoEngine(
const std::string& engine_id) const {
return use_ime_service_ && CanRouteToNativeMojoEngine(engine_id);
}
void NativeInputMethodEngine::CandidateClicked(uint32_t index) {
// The parent implementation will try to convert `index` into a candidate ID.
// The native Mojo engine doesn't use candidate IDs, so we just treat `index`
// as the ID, without doing a mapping.
if (ShouldRouteToNativeMojoEngine(GetActiveComponentId())) {
GetNativeObserver()->OnCandidateClicked(GetActiveComponentId(), index,
MOUSE_BUTTON_LEFT);
} else {
InputMethodEngine::CandidateClicked(index);
}
}
bool NativeInputMethodEngine::IsReadyForTesting() {
if (ShouldRouteToNativeMojoEngine(GetActiveComponentId())) {
return GetNativeObserver()->IsReadyForTesting(); // IN-TEST
}
return InputMethodEngine::IsReadyForTesting();
}
void NativeInputMethodEngine::OnKeyboardEnabledChanged(bool enabled) {
// Re-activate the engine whenever the virtual keyboard is enabled or disabled
// so that the native or extension state is reset correctly.
Enable(GetActiveComponentId());
}
void NativeInputMethodEngine::OnProfileWillBeDestroyed(Profile* profile) {
InputMethodEngine::OnProfileWillBeDestroyed(profile);
GetNativeObserver()->OnProfileWillBeDestroyed();
}
void NativeInputMethodEngine::FlushForTesting() {
GetNativeObserver()->FlushForTesting();
}
bool NativeInputMethodEngine::IsConnectedForTesting() const {
return GetNativeObserver()->IsConnectedForTesting();
}
void NativeInputMethodEngine::OnAutocorrect(
const std::u16string& typed_word,
const std::u16string& corrected_word,
int start_index) {
autocorrect_manager_->HandleAutocorrect(
gfx::Range(start_index, start_index + corrected_word.length()),
typed_word, corrected_word);
}
NativeInputMethodEngineObserver* NativeInputMethodEngine::GetNativeObserver()
const {
return static_cast<NativeInputMethodEngineObserver*>(observer_.get());
}
bool NativeInputMethodEngine::UpdateMenuItems(
const std::vector<InputMethodManager::MenuItem>& items,
std::string* error) {
// Ignore calls to UpdateMenuItems when the native Mojo engine is active.
// The menu items are stored in a singleton that is shared between the native
// Mojo engine and the extension. This method is called when the extension
// wants to update the menu items.
// Ignore this if the native Mojo engine is active to prevent the extension
// from overriding the menu items set by the native Mojo engine.
if (ShouldRouteToNativeMojoEngine(GetActiveComponentId())) {
return true;
}
return InputMethodEngine::UpdateMenuItems(items, error);
}
void NativeInputMethodEngine::OnInputMethodOptionsChanged() {
if (ShouldRouteToNativeMojoEngine(GetActiveComponentId()) ||
ShouldRouteToFirstPartyVietnameseInput(GetActiveComponentId())) {
Enable(GetActiveComponentId());
} else {
InputMethodEngine::OnInputMethodOptionsChanged();
}
}
} // namespace input_method
} // namespace ash
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