File: overscroll_pref_manager.h

package info (click to toggle)
chromium 143.0.7499.109-1
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 5,786,824 kB
  • sloc: cpp: 35,783,839; ansic: 7,477,365; javascript: 3,962,116; python: 1,480,521; xml: 764,832; asm: 710,816; pascal: 188,028; sh: 88,717; perl: 88,692; objc: 79,984; sql: 57,625; cs: 42,265; fortran: 24,101; makefile: 22,509; tcl: 15,277; php: 14,018; yacc: 9,043; ruby: 7,553; awk: 3,720; lisp: 3,233; lex: 1,330; ada: 727; jsp: 228; sed: 36
file content (38 lines) | stat: -rw-r--r-- 1,233 bytes parent folder | download | duplicates (5) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
 
// Copyright 2023 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_OVERSCROLL_PREF_MANAGER_H_
#define CHROME_BROWSER_UI_OVERSCROLL_PREF_MANAGER_H_

#include "base/memory/raw_ptr.h"
#include "components/prefs/pref_change_registrar.h"

class TabStripModel;

class OverscrollPrefManager {
 public:
  OverscrollPrefManager(TabStripModel* tab_strip_model, bool is_type_devtools);
  ~OverscrollPrefManager();

  // Called to determine if the active tab of the hosting Browser can be
  // overscrolled with touch/wheel gestures.
  bool CanOverscrollContent() const;

 private:
  // Handle changes to kOverscrollHistoryNavigationEnabled preference.
  void OnOverscrollHistoryNavigationEnabledChanged();

  const raw_ptr<TabStripModel> tab_strip_model_;

  PrefChangeRegistrar local_state_pref_registrar_;

  // Whether this is for devtools type.
  const bool is_type_devtools_;

  // Whether the browser can overscroll content for history navigation.
  // Reflects the value of the kOverscrollHistoryNavigationEnabled pref.
  bool overscroll_history_navigation_enabled_ = true;
};

#endif  // CHROME_BROWSER_UI_OVERSCROLL_PREF_MANAGER_H_