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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 "base/macros.h"
#include "content/public/browser/web_contents_user_data.h"
// Helper used by FullscreenController to track the state of a WebContents that
// is in fullscreen mode, but the browser window is not. See
// 'FullscreenWithinTab Note' in fullscreen_controller.h.
// The purpose of this class is to associate some fullscreen state at the tab
// level rather than at the Browser level. This allows tabs to be
// dragged/dropped between Browsers and have their fullscreen state handed off
// between FullscreenControllers as well.
// FullscreenWithinTabHelper is created on-demand, and its lifecycle is tied to
// that of its associated WebContents. It is automatically destroyed.
class FullscreenWithinTabHelper
: public content::WebContentsUserData<FullscreenWithinTabHelper> {
~FullscreenWithinTabHelper() override;
bool is_fullscreen_within_tab() const { return is_fullscreen_within_tab_; }
void SetIsFullscreenWithinTab(bool is_fullscreen) {
is_fullscreen_within_tab_ = is_fullscreen;
// Immediately remove and destroy the FullscreenWithinTabHelper instance
// associated with |web_contents|.
static void RemoveForWebContents(content::WebContents* web_contents);
friend class content::WebContentsUserData<FullscreenWithinTabHelper>;
explicit FullscreenWithinTabHelper(content::WebContents* ignored);
bool is_fullscreen_within_tab_;