File: display_change_notifier.h

package info (click to toggle)
chromium 138.0.7204.183-1
  • links: PTS, VCS
  • area: main
  • in suites: trixie
  • size: 6,071,908 kB
  • sloc: cpp: 34,937,088; ansic: 7,176,967; javascript: 4,110,704; python: 1,419,953; asm: 946,768; xml: 739,971; pascal: 187,324; sh: 89,623; perl: 88,663; objc: 79,944; sql: 50,304; cs: 41,786; fortran: 24,137; makefile: 21,806; php: 13,980; tcl: 13,166; yacc: 8,925; ruby: 7,485; awk: 3,720; lisp: 3,096; lex: 1,327; ada: 727; jsp: 228; sed: 36
file content (50 lines) | stat: -rw-r--r-- 1,393 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
39
40
41
42
43
44
45
46
47
48
49
50
// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef UI_DISPLAY_DISPLAY_CHANGE_NOTIFIER_H_
#define UI_DISPLAY_DISPLAY_CHANGE_NOTIFIER_H_

#include <vector>

#include "base/observer_list.h"
#include "build/buildflag.h"
#include "ui/display/display_export.h"

namespace display {
class Display;
class DisplayObserver;

// DisplayChangeNotifier is a class implementing the handling of DisplayObserver
// notification for Screen.
class DISPLAY_EXPORT DisplayChangeNotifier {
 public:
  DisplayChangeNotifier();

  DisplayChangeNotifier(const DisplayChangeNotifier&) = delete;
  DisplayChangeNotifier& operator=(const DisplayChangeNotifier&) = delete;

  ~DisplayChangeNotifier();

  void AddObserver(DisplayObserver* observer);

  void RemoveObserver(DisplayObserver* observer);

  void NotifyDisplaysChanged(const std::vector<Display>& old_displays,
                             const std::vector<Display>& new_displays);

  void NotifyCurrentWorkspaceChanged(const std::string& workspace);

#if BUILDFLAG(IS_MAC)
  void NotifyPrimaryDisplayChanged();
#endif

 private:
  // The observers that need to be notified when a display is modified, added
  // or removed.
  base::ObserverList<DisplayObserver> observer_list_;
};

}  // namespace display

#endif  // UI_DISPLAY_DISPLAY_CHANGE_NOTIFIER_H_