third_party/WebKit/Source/core/frame/Settings.h

/*
 * Copyright (C) 2003, 2006, 2007, 2008, 2009, 2011, 2012 Apple Inc. All rights
 * reserved.
 *           (C) 2006 Graham Dennis (graham.dennis@gmail.com)
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef Settings_h
#define Settings_h

#include <memory>

#include "base/macros.h"
#include "bindings/core/v8/V8CacheOptions.h"
#include "core/CoreExport.h"
#include "core/dom/events/AddEventListenerOptionsDefaults.h"
#include "core/editing/EditingBehaviorTypes.h"
#include "core/editing/SelectionStrategy.h"
#include "core/frame/SettingsDelegate.h"
#include "core/html/media/AutoplayPolicy.h"
#include "core/html/track/TextTrackKindUserPreference.h"
#include "core/loader/FrameLoaderTypes.h"
#include "core/settings_macros.h"
#include "platform/Timer.h"
#include "platform/fonts/GenericFontFamilySettings.h"
#include "platform/geometry/IntSize.h"
#include "platform/graphics/HighContrastSettings.h"
#include "platform/graphics/ImageAnimationPolicy.h"
#include "platform/weborigin/KURL.h"
#include "public/platform/PointerProperties.h"
#include "public/platform/WebDisplayMode.h"
#include "public/platform/WebEffectiveConnectionType.h"
#include "public/platform/WebViewportStyle.h"

namespace blink {

class CORE_EXPORT Settings {
  USING_FAST_MALLOC(Settings);

 public:
  static std::unique_ptr<Settings> Create();

  GenericFontFamilySettings& GetGenericFontFamilySettings() {
    return generic_font_family_settings_;
  }
  void NotifyGenericFontFamilyChange() {
    Invalidate(SettingsDelegate::kFontFamilyChange);
  }

  void SetTextAutosizingEnabled(bool);
  bool TextAutosizingEnabled() const { return text_autosizing_enabled_; }

  // Only set by Layout Tests, and only used if textAutosizingEnabled() returns
  // true.
  void SetTextAutosizingWindowSizeOverride(const IntSize&);
  const IntSize& TextAutosizingWindowSizeOverride() const {
    return text_autosizing_window_size_override_;
  }

  SETTINGS_GETTERS_AND_SETTERS

  // FIXME: This does not belong here.
  static void SetMockScrollbarsEnabled(bool flag);
  static bool MockScrollbarsEnabled();

  void SetDelegate(SettingsDelegate*);

  // TODO(lunalu): Service worker and shared worker count feature usage on the
  // blink side use counter via the shadow page. Once blink side use counter is
  // removed, this flag is no longer needed (crbug.com/811948).
  void SetIsShadowPage(bool);
  bool IsShadowPage() const { return is_shadow_page_; }

 private:
  Settings();

  void Invalidate(SettingsDelegate::ChangeType);

  SettingsDelegate* delegate_;

  GenericFontFamilySettings generic_font_family_settings_;
  IntSize text_autosizing_window_size_override_;
  bool text_autosizing_enabled_ : 1;
  // TODO(lunalu): Service worker is counting feature usage on the blink side
  // use counter via the shadow page. Once blink side use counter is removed,
  // this flag is no longer needed (crbug.com/811948).
  bool is_shadow_page_;

  SETTINGS_MEMBER_VARIABLES

  DISALLOW_COPY_AND_ASSIGN(Settings);
};

}  // namespace blink

#endif  // Settings_h