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// Copyright (c) 2015 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.
#ifndef CHROME_BROWSER_UI_EXCLUSIVE_ACCESS_MOUSE_LOCK_CONTROLLER_H_
#define CHROME_BROWSER_UI_EXCLUSIVE_ACCESS_MOUSE_LOCK_CONTROLLER_H_
#include "base/macros.h"
#include "chrome/browser/ui/exclusive_access/exclusive_access_controller_base.h"
#include "components/content_settings/core/common/content_settings.h"
// This class implements mouselock behavior.
class MouseLockController : public ExclusiveAccessControllerBase {
public:
explicit MouseLockController(ExclusiveAccessManager* manager);
~MouseLockController() override;
// Returns true if the mouse is locked.
bool IsMouseLocked() const;
// Returns true if the mouse was locked and no notification should be
// displayed to the user. This is the case when a notice has already been
// displayed to the user, and the application voluntarily unlocks, then
// re-locks the mouse (a duplicate notification should not be given). See
// content::MouseLockDispatcher::LockMouse.
bool IsMouseLockedSilently() const;
void RequestToLockMouse(content::WebContents* web_contents,
bool user_gesture,
bool last_unlocked_by_target);
// Override from ExclusiveAccessControllerBase
bool HandleUserPressedEscape() override;
void ExitExclusiveAccessToPreviousState() override;
// Called by Browser::LostMouseLock.
void LostMouseLock();
void UnlockMouse();
// If true, does not call into the WebContents to lock the mouse. Just assumes
// that it works. This may be necessary when calling
// Browser::RequestToLockMouse in tests, because the proper signal will not
// have been passed to the RenderViewHost.
void set_fake_mouse_lock_for_test(bool value) {
fake_mouse_lock_for_test_ = value;
}
private:
enum MouseLockState {
MOUSELOCK_UNLOCKED,
// Mouse has been locked.
MOUSELOCK_LOCKED,
// Mouse has been locked silently, with no notification to user.
MOUSELOCK_LOCKED_SILENTLY
};
void NotifyMouseLockChange();
void ExitExclusiveAccessIfNecessary() override;
void NotifyTabExclusiveAccessLost() override;
void RecordBubbleReshowsHistogram(int bubble_reshow_count) override;
MouseLockState mouse_lock_state_;
bool fake_mouse_lock_for_test_;
DISALLOW_COPY_AND_ASSIGN(MouseLockController);
};
#endif // CHROME_BROWSER_UI_EXCLUSIVE_ACCESS_MOUSE_LOCK_CONTROLLER_H_
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