chromium/chrome/browser/ui/exclusive_access/keyboard_lock_controller.cc

// 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 "chrome/browser/ui/exclusive_access/keyboard_lock_controller.h"

#include "base/feature_list.h"
#include "base/functional/bind.h"
#include "base/metrics/user_metrics.h"
#include "base/time/default_tick_clock.h"
#include "base/time/time.h"
#include "chrome/browser/ui/exclusive_access/exclusive_access_bubble_hide_callback.h"
#include "chrome/browser/ui/exclusive_access/exclusive_access_manager.h"
#include "chrome/browser/ui/exclusive_access/exclusive_access_permission_manager.h"
#include "chrome/browser/ui/exclusive_access/fullscreen_controller.h"
#include "chrome/browser/ui/ui_features.h"
#include "components/input/native_web_keyboard_event.h"
#include "content/public/browser/web_contents.h"
#include "ui/events/keycodes/keyboard_codes.h"

TimeTicks;
WebContents;

namespace {

// Amount of time the user must hold ESC to exit full screen.
constexpr base::TimeDelta kHoldEscapeTime = …;

// Amount of time to look for ESC key presses to reshow the exit instructions.
constexpr base::TimeDelta kDefaultEscRepeatWindow = …;

// Number of times ESC must be pressed within |kDefaultEscRepeatWindow| to
// trigger the exit instructions to be shown again.
constexpr int kEscRepeatCountToTriggerUiReshow = …;

// Check whether `event` is a kRawKeyDown type and doesn't have non-stateful
// modifiers (i.e. shift, ctrl etc.).
bool IsUnmodifiedEscKeyDownEvent(const input::NativeWebKeyboardEvent& event) { … }

}  // namespace

KeyboardLockController::KeyboardLockController(ExclusiveAccessManager* manager)
    : … { … }

KeyboardLockController::~KeyboardLockController() = default;

bool KeyboardLockController::HandleUserPressedEscape() { … }

void KeyboardLockController::HandleUserHeldEscape() { … }

void KeyboardLockController::HandleUserReleasedEscapeEarly() { … }

bool KeyboardLockController::RequiresPressAndHoldEscToExit() const { … }

void KeyboardLockController::ExitExclusiveAccessToPreviousState() { … }

void KeyboardLockController::ExitExclusiveAccessIfNecessary() { … }

void KeyboardLockController::NotifyTabExclusiveAccessLost() { … }

bool KeyboardLockController::IsKeyboardLockActive() const { … }

void KeyboardLockController::RequestKeyboardLock(WebContents* web_contents,
                                                 bool esc_key_locked) { … }

bool KeyboardLockController::HandleKeyEvent(
    const input::NativeWebKeyboardEvent& event) { … }

void KeyboardLockController::CancelKeyboardLockRequest(WebContents* tab) { … }

void KeyboardLockController::LockKeyboard(
    base::WeakPtr<content::WebContents> web_contents,
    bool esc_key_locked) { … }

void KeyboardLockController::UnlockKeyboard() { … }

void KeyboardLockController::UnlockKeyboardForWebContents(
    base::WeakPtr<content::WebContents> web_contents) { … }

void KeyboardLockController::HandleUserHeldEscapeDeprecated() { … }

void KeyboardLockController::ReShowExitBubbleIfNeeded() { … }