// Copyright 2015 The Chromium Authors
// 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_EXCLUSIVE_ACCESS_CONTEXT_H_
#define CHROME_BROWSER_UI_EXCLUSIVE_ACCESS_EXCLUSIVE_ACCESS_CONTEXT_H_

#include "chrome/browser/ui/exclusive_access/exclusive_access_bubble_hide_callback.h"
#include "chrome/browser/ui/exclusive_access/exclusive_access_bubble_type.h"
#include "chrome/browser/ui/exclusive_access/fullscreen_tab_params.h"
#include "url/origin.h"

class Profile;

namespace content {
class WebContents;
}

// The context for exclusive access, i.e. fullscreen, pointer and keyboard lock.
// This interface is implemented by WebContents host views, e.g. BrowserView.
class ExclusiveAccessContext {
 public:
  virtual ~ExclusiveAccessContext() = default;

  // Returns the current profile associated with the window.
  virtual Profile* GetProfile() = 0;

  // Returns whether the window hosting the browser view is fullscreen.
  virtual bool IsFullscreen() const = 0;

  // Called when we transition between tab and browser fullscreen. This method
  // updates the UI by showing/hiding the tab strip, toolbar and bookmark bar
  // in the browser fullscreen. Currently only supported on Mac.
  virtual void UpdateUIForTabFullscreen() {}

  // Enters fullscreen and updates the exclusive access bubble.
  virtual void EnterFullscreen(const url::Origin& origin,
                               ExclusiveAccessBubbleType bubble_type,
                               FullscreenTabParams fullscreen_tab_params) = 0;

  // Exits fullscreen and updates the exclusive access bubble.
  virtual void ExitFullscreen() = 0;

  // Updates the exclusive access bubble.
  virtual void UpdateExclusiveAccessBubble(
      const ExclusiveAccessBubbleParams& params,
      ExclusiveAccessBubbleHideCallback first_hide_callback) = 0;

  // Returns whether the exclusive access bubble is currently shown.
  virtual bool IsExclusiveAccessBubbleDisplayed() const = 0;

  // Informs the exclusive access system of some user input, which may update
  // internal timers and/or re-display the bubble.
  virtual void OnExclusiveAccessUserInput() = 0;

  // Returns the currently active WebContents, or nullptr if there is none.
  virtual content::WebContents* GetWebContentsForExclusiveAccess() = 0;

  // window.setResizable(false) blocks user-initiated fullscreen requests, see:
  // https://github.com/explainers-by-googlers/additional-windowing-controls/blob/main/README.md
  virtual bool CanUserEnterFullscreen() const = 0;

  // There are special modes where the user isn't allowed to exit fullscreen on
  // their own, and this function allows us to check for that.
  virtual bool CanUserExitFullscreen() const = 0;
};

#endif  // CHROME_BROWSER_UI_EXCLUSIVE_ACCESS_EXCLUSIVE_ACCESS_CONTEXT_H_