File: any_widget_observer_singleton.cc

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 (42 lines) | stat: -rw-r--r-- 1,325 bytes parent folder | download | duplicates (6)
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
// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "ui/views/widget/any_widget_observer_singleton.h"

#include "base/no_destructor.h"
#include "base/observer_list.h"
#include "ui/views/widget/any_widget_observer.h"

namespace views::internal {

// static
AnyWidgetObserverSingleton* AnyWidgetObserverSingleton::GetInstance() {
  static base::NoDestructor<AnyWidgetObserverSingleton> observer;
  return observer.get();
}

#define PROPAGATE_NOTIFICATION(method)                      \
  void AnyWidgetObserverSingleton::method(Widget* widget) { \
    observers_.Notify(&AnyWidgetObserver::method, widget);  \
  }

PROPAGATE_NOTIFICATION(OnAnyWidgetInitialized)
PROPAGATE_NOTIFICATION(OnAnyWidgetShown)
PROPAGATE_NOTIFICATION(OnAnyWidgetHidden)
PROPAGATE_NOTIFICATION(OnAnyWidgetClosing)

#undef PROPAGATE_NOTIFICATION

void AnyWidgetObserverSingleton::AddObserver(AnyWidgetObserver* observer) {
  observers_.AddObserver(observer);
}

void AnyWidgetObserverSingleton::RemoveObserver(AnyWidgetObserver* observer) {
  observers_.RemoveObserver(observer);
}

AnyWidgetObserverSingleton::AnyWidgetObserverSingleton() = default;
AnyWidgetObserverSingleton::~AnyWidgetObserverSingleton() = default;

}  // namespace views::internal