1 | /* |
2 | * Copyright (C) 2017 Apple Inc. All rights reserved. |
3 | * |
4 | * Redistribution and use in source and binary forms, with or without |
5 | * modification, are permitted provided that the following conditions |
6 | * are met: |
7 | * 1. Redistributions of source code must retain the above copyright |
8 | * notice, this list of conditions and the following disclaimer. |
9 | * 2. Redistributions in binary form must reproduce the above copyright |
10 | * notice, this list of conditions and the following disclaimer in the |
11 | * documentation and/or other materials provided with the distribution. |
12 | * |
13 | * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' |
14 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
15 | * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
16 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS |
17 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
18 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
19 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
20 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
21 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
22 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
23 | * THE POSSIBILITY OF SUCH DAMAGE. |
24 | */ |
25 | |
26 | #pragma once |
27 | |
28 | #include <wtf/Function.h> |
29 | |
30 | #if PLATFORM(IOS_FAMILY) |
31 | #include <wtf/RetainPtr.h> |
32 | OBJC_CLASS WebLowPowerModeObserver; |
33 | #endif |
34 | |
35 | #if USE(GLIB) |
36 | #include <wtf/glib/GRefPtr.h> |
37 | typedef struct _GDBusProxy GDBusProxy; |
38 | #endif |
39 | |
40 | namespace WebCore { |
41 | |
42 | class LowPowerModeNotifier { |
43 | WTF_MAKE_FAST_ALLOCATED; |
44 | public: |
45 | using LowPowerModeChangeCallback = WTF::Function<void(bool isLowPowerModeEnabled)>; |
46 | WEBCORE_EXPORT explicit LowPowerModeNotifier(LowPowerModeChangeCallback&&); |
47 | WEBCORE_EXPORT ~LowPowerModeNotifier(); |
48 | |
49 | WEBCORE_EXPORT bool isLowPowerModeEnabled() const; |
50 | |
51 | private: |
52 | #if PLATFORM(IOS_FAMILY) |
53 | void notifyLowPowerModeChanged(bool); |
54 | friend void notifyLowPowerModeChanged(LowPowerModeNotifier&, bool); |
55 | |
56 | RetainPtr<WebLowPowerModeObserver> m_observer; |
57 | LowPowerModeChangeCallback m_callback; |
58 | #elif USE(GLIB) |
59 | void updateWarningLevel(); |
60 | void warningLevelChanged(); |
61 | static void gPropertiesChangedCallback(LowPowerModeNotifier*, GVariant* changedProperties); |
62 | |
63 | GRefPtr<GDBusProxy> m_displayDeviceProxy; |
64 | GRefPtr<GCancellable> m_cancellable; |
65 | LowPowerModeChangeCallback m_callback; |
66 | bool m_lowPowerModeEnabled { false }; |
67 | #endif |
68 | }; |
69 | |
70 | } |
71 | |