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// Copyright 2014 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/browser/extensions/api/virtual_keyboard_private/chrome_virtual_keyboard_delegate.h"
#include <string>
#include <utility>
#include "ash/shell.h"
#include "base/command_line.h"
#include "base/metrics/histogram.h"
#include "base/metrics/user_metrics_action.h"
#include "base/strings/string16.h"
#include "chrome/browser/chromeos/login/lock/screen_locker.h"
#include "chrome/browser/chromeos/login/ui/user_adding_screen.h"
#include "chrome/browser/profiles/profile_manager.h"
#include "chrome/browser/ui/chrome_pages.h"
#include "chrome/common/url_constants.h"
#include "components/user_manager/user_manager.h"
#include "content/public/browser/user_metrics.h"
#include "extensions/common/api/virtual_keyboard_private.h"
#include "ui/aura/window_tree_host.h"
#include "ui/keyboard/keyboard_controller.h"
#include "ui/keyboard/keyboard_switches.h"
#include "ui/keyboard/keyboard_util.h"
namespace keyboard_api = extensions::api::virtual_keyboard_private;
namespace {
aura::Window* GetKeyboardContainer() {
keyboard::KeyboardController* controller =
keyboard::KeyboardController::GetInstance();
return controller ? controller->GetContainerWindow() : nullptr;
}
std::string GenerateFeatureFlag(const std::string& feature, bool enabled) {
return feature + (enabled ? "-enabled" : "-disabled");
}
keyboard::KeyboardMode getKeyboardModeEnum(keyboard_api::KeyboardMode mode) {
switch (mode) {
case keyboard_api::KEYBOARD_MODE_NONE:
return keyboard::NONE;
case keyboard_api::KEYBOARD_MODE_FULL_WIDTH:
return keyboard::FULL_WIDTH;
case keyboard_api::KEYBOARD_MODE_FLOATING:
return keyboard::FLOATING;
}
return keyboard::NONE;
}
keyboard::KeyboardState getKeyboardStateEnum(
keyboard_api::KeyboardState state) {
switch (state) {
case keyboard_api::KEYBOARD_STATE_ENABLED:
return keyboard::KEYBOARD_STATE_ENABLED;
case keyboard_api::KEYBOARD_STATE_DISABLED:
return keyboard::KEYBOARD_STATE_DISABLED;
case keyboard_api::KEYBOARD_STATE_AUTO:
case keyboard_api::KEYBOARD_STATE_NONE:
return keyboard::KEYBOARD_STATE_AUTO;
}
return keyboard::KEYBOARD_STATE_AUTO;
}
} // namespace
namespace extensions {
bool ChromeVirtualKeyboardDelegate::GetKeyboardConfig(
base::DictionaryValue* results) {
DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
results->SetString("layout", keyboard::GetKeyboardLayout());
// TODO(bshe): Consolidate a11y, hotrod and normal mode into a mode enum. See
// crbug.com/529474.
results->SetBoolean("a11ymode", keyboard::GetAccessibilityKeyboardEnabled());
results->SetBoolean("hotrodmode", keyboard::GetHotrodKeyboardEnabled());
scoped_ptr<base::ListValue> features(new base::ListValue());
features->AppendString(GenerateFeatureFlag(
"floatingvirtualkeyboard", keyboard::IsFloatingVirtualKeyboardEnabled()));
features->AppendString(
GenerateFeatureFlag("gesturetyping", keyboard::IsGestureTypingEnabled()));
features->AppendString(GenerateFeatureFlag(
"gestureediting", keyboard::IsGestureEditingEnabled()));
features->AppendString(
GenerateFeatureFlag("voiceinput", keyboard::IsVoiceInputEnabled()));
features->AppendString(GenerateFeatureFlag("experimental",
keyboard::IsExperimentalInputViewEnabled()));
results->Set("features", std::move(features));
return true;
}
bool ChromeVirtualKeyboardDelegate::HideKeyboard() {
DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
keyboard::KeyboardController* controller =
keyboard::KeyboardController::GetInstance();
if (!controller)
return false;
UMA_HISTOGRAM_ENUMERATION("VirtualKeyboard.KeyboardControlEvent",
keyboard::KEYBOARD_CONTROL_HIDE_USER,
keyboard::KEYBOARD_CONTROL_MAX);
// Pass HIDE_REASON_MANUAL since calls to HideKeyboard as part of this API
// would be user generated.
controller->HideKeyboard(keyboard::KeyboardController::HIDE_REASON_MANUAL);
return true;
}
bool ChromeVirtualKeyboardDelegate::InsertText(const base::string16& text) {
DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
return keyboard::InsertText(text);
}
bool ChromeVirtualKeyboardDelegate::OnKeyboardLoaded() {
DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
keyboard::MarkKeyboardLoadFinished();
base::UserMetricsAction("VirtualKeyboardLoaded");
return true;
}
void ChromeVirtualKeyboardDelegate::SetHotrodKeyboard(bool enable) {
if (keyboard::GetHotrodKeyboardEnabled() == enable)
return;
keyboard::SetHotrodKeyboardEnabled(enable);
// This reloads virtual keyboard even if it exists. This ensures virtual
// keyboard gets the correct state of the hotrod keyboard through
// chrome.virtualKeyboardPrivate.getKeyboardConfig.
if (keyboard::IsKeyboardEnabled())
ash::Shell::GetInstance()->CreateKeyboard();
}
bool ChromeVirtualKeyboardDelegate::LockKeyboard(bool state) {
DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
keyboard::KeyboardController* controller =
keyboard::KeyboardController::GetInstance();
if (!controller)
return false;
keyboard::KeyboardController::GetInstance()->set_lock_keyboard(state);
return true;
}
bool ChromeVirtualKeyboardDelegate::SendKeyEvent(const std::string& type,
int char_value,
int key_code,
const std::string& key_name,
int modifiers) {
DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
aura::Window* window = GetKeyboardContainer();
return window && keyboard::SendKeyEvent(type,
char_value,
key_code,
key_name,
modifiers,
window->GetHost());
}
bool ChromeVirtualKeyboardDelegate::ShowLanguageSettings() {
DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
content::RecordAction(base::UserMetricsAction("OpenLanguageOptionsDialog"));
chrome::ShowSettingsSubPageForProfile(ProfileManager::GetActiveUserProfile(),
chrome::kLanguageOptionsSubPage);
return true;
}
bool ChromeVirtualKeyboardDelegate::SetVirtualKeyboardMode(int mode_enum) {
keyboard::KeyboardMode keyboard_mode =
getKeyboardModeEnum(static_cast<keyboard_api::KeyboardMode>(mode_enum));
keyboard::KeyboardController* controller =
keyboard::KeyboardController::GetInstance();
if (!controller)
return false;
controller->SetKeyboardMode(keyboard_mode);
return true;
}
bool ChromeVirtualKeyboardDelegate::SetRequestedKeyboardState(int state_enum) {
keyboard::KeyboardState keyboard_state = getKeyboardStateEnum(
static_cast<keyboard_api::KeyboardState>(state_enum));
bool was_enabled = keyboard::IsKeyboardEnabled();
keyboard::SetRequestedKeyboardState(keyboard_state);
bool is_enabled = keyboard::IsKeyboardEnabled();
if (was_enabled == is_enabled)
return true;
if (is_enabled) {
ash::Shell::GetInstance()->CreateKeyboard();
} else {
ash::Shell::GetInstance()->DeactivateKeyboard();
}
return true;
}
bool ChromeVirtualKeyboardDelegate::IsLanguageSettingsEnabled() {
return (user_manager::UserManager::Get()->IsUserLoggedIn() &&
!chromeos::UserAddingScreen::Get()->IsRunning() &&
!(chromeos::ScreenLocker::default_screen_locker() &&
chromeos::ScreenLocker::default_screen_locker()->locked()));
}
} // namespace extensions
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