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comparison: dom/audiochannel/AudioChannelAgent.cpp
dom/audiochannel/AudioChannelAgent.cpp
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| -1:000000000000 | 0:8f0c8b78e4b8 |
|---|---|
| 1 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 2 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 4 | |
| 5 #include "AudioChannelAgent.h" | |
| 6 #include "AudioChannelCommon.h" | |
| 7 #include "AudioChannelService.h" | |
| 8 #include "nsIDOMWindow.h" | |
| 9 #include "nsPIDOMWindow.h" | |
| 10 #include "nsXULAppAPI.h" | |
| 11 | |
| 12 using namespace mozilla::dom; | |
| 13 | |
| 14 NS_IMPL_CYCLE_COLLECTION(AudioChannelAgent, mWindow, mCallback) | |
| 15 | |
| 16 NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(AudioChannelAgent) | |
| 17 NS_INTERFACE_MAP_ENTRY(nsIAudioChannelAgent) | |
| 18 NS_INTERFACE_MAP_ENTRY(nsISupports) | |
| 19 NS_INTERFACE_MAP_END | |
| 20 | |
| 21 NS_IMPL_CYCLE_COLLECTING_ADDREF(AudioChannelAgent) | |
| 22 NS_IMPL_CYCLE_COLLECTING_RELEASE(AudioChannelAgent) | |
| 23 | |
| 24 AudioChannelAgent::AudioChannelAgent() | |
| 25 : mAudioChannelType(AUDIO_AGENT_CHANNEL_ERROR) | |
| 26 , mIsRegToService(false) | |
| 27 , mVisible(true) | |
| 28 , mWithVideo(false) | |
| 29 { | |
| 30 } | |
| 31 | |
| 32 AudioChannelAgent::~AudioChannelAgent() | |
| 33 { | |
| 34 if (mIsRegToService) { | |
| 35 StopPlaying(); | |
| 36 } | |
| 37 } | |
| 38 | |
| 39 /* readonly attribute long audioChannelType; */ | |
| 40 NS_IMETHODIMP AudioChannelAgent::GetAudioChannelType(int32_t *aAudioChannelType) | |
| 41 { | |
| 42 *aAudioChannelType = mAudioChannelType; | |
| 43 return NS_OK; | |
| 44 } | |
| 45 | |
| 46 /* boolean init (in nsIDOMWindow window, in long channelType, | |
| 47 * in nsIAudioChannelAgentCallback callback); */ | |
| 48 NS_IMETHODIMP | |
| 49 AudioChannelAgent::Init(nsIDOMWindow* aWindow, int32_t aChannelType, | |
| 50 nsIAudioChannelAgentCallback *aCallback) | |
| 51 { | |
| 52 return InitInternal(aWindow, aChannelType, aCallback, | |
| 53 /* useWeakRef = */ false); | |
| 54 } | |
| 55 | |
| 56 /* boolean initWithWeakCallback (in nsIDOMWindow window, in long channelType, | |
| 57 * in nsIAudioChannelAgentCallback callback); */ | |
| 58 NS_IMETHODIMP | |
| 59 AudioChannelAgent::InitWithWeakCallback(nsIDOMWindow* aWindow, | |
| 60 int32_t aChannelType, | |
| 61 nsIAudioChannelAgentCallback *aCallback) | |
| 62 { | |
| 63 return InitInternal(aWindow, aChannelType, aCallback, | |
| 64 /* useWeakRef = */ true); | |
| 65 } | |
| 66 | |
| 67 /* void initWithVideo(in nsIDOMWindow window, in long channelType, | |
| 68 * in nsIAudioChannelAgentCallback callback, in boolean weak); */ | |
| 69 NS_IMETHODIMP | |
| 70 AudioChannelAgent::InitWithVideo(nsIDOMWindow* aWindow, int32_t aChannelType, | |
| 71 nsIAudioChannelAgentCallback *aCallback, | |
| 72 bool aUseWeakRef) | |
| 73 { | |
| 74 return InitInternal(aWindow, aChannelType, aCallback, aUseWeakRef, | |
| 75 /* withVideo = */ true); | |
| 76 } | |
| 77 | |
| 78 nsresult | |
| 79 AudioChannelAgent::InitInternal(nsIDOMWindow* aWindow, int32_t aChannelType, | |
| 80 nsIAudioChannelAgentCallback *aCallback, | |
| 81 bool aUseWeakRef, bool aWithVideo) | |
| 82 { | |
| 83 // We need the window only for IPC. | |
| 84 MOZ_ASSERT(aWindow || XRE_GetProcessType() == GeckoProcessType_Default); | |
| 85 | |
| 86 // We syncd the enum of channel type between nsIAudioChannelAgent.idl and | |
| 87 // AudioChannelBinding.h the same. | |
| 88 MOZ_ASSERT(int(AUDIO_AGENT_CHANNEL_NORMAL) == int(AudioChannel::Normal) && | |
| 89 int(AUDIO_AGENT_CHANNEL_CONTENT) == int(AudioChannel::Content) && | |
| 90 int(AUDIO_AGENT_CHANNEL_NOTIFICATION) == int(AudioChannel::Notification) && | |
| 91 int(AUDIO_AGENT_CHANNEL_ALARM) == int(AudioChannel::Alarm) && | |
| 92 int(AUDIO_AGENT_CHANNEL_TELEPHONY) == int(AudioChannel::Telephony) && | |
| 93 int(AUDIO_AGENT_CHANNEL_RINGER) == int(AudioChannel::Ringer) && | |
| 94 int(AUDIO_AGENT_CHANNEL_PUBLICNOTIFICATION) == int(AudioChannel::Publicnotification), | |
| 95 "Enum of channel on nsIAudioChannelAgent.idl should be the same with AudioChannelBinding.h"); | |
| 96 | |
| 97 if (mAudioChannelType != AUDIO_AGENT_CHANNEL_ERROR || | |
| 98 aChannelType > AUDIO_AGENT_CHANNEL_PUBLICNOTIFICATION || | |
| 99 aChannelType < AUDIO_AGENT_CHANNEL_NORMAL) { | |
| 100 return NS_ERROR_FAILURE; | |
| 101 } | |
| 102 | |
| 103 mWindow = aWindow; | |
| 104 mAudioChannelType = aChannelType; | |
| 105 | |
| 106 if (aUseWeakRef) { | |
| 107 mWeakCallback = do_GetWeakReference(aCallback); | |
| 108 } else { | |
| 109 mCallback = aCallback; | |
| 110 } | |
| 111 | |
| 112 mWithVideo = aWithVideo; | |
| 113 | |
| 114 return NS_OK; | |
| 115 } | |
| 116 | |
| 117 /* boolean startPlaying (); */ | |
| 118 NS_IMETHODIMP AudioChannelAgent::StartPlaying(int32_t *_retval) | |
| 119 { | |
| 120 AudioChannelService *service = AudioChannelService::GetAudioChannelService(); | |
| 121 if (mAudioChannelType == AUDIO_AGENT_CHANNEL_ERROR || | |
| 122 service == nullptr || mIsRegToService) { | |
| 123 return NS_ERROR_FAILURE; | |
| 124 } | |
| 125 | |
| 126 service->RegisterAudioChannelAgent(this, | |
| 127 static_cast<AudioChannel>(mAudioChannelType), mWithVideo); | |
| 128 *_retval = service->GetState(this, !mVisible); | |
| 129 mIsRegToService = true; | |
| 130 return NS_OK; | |
| 131 } | |
| 132 | |
| 133 /* void stopPlaying (); */ | |
| 134 NS_IMETHODIMP AudioChannelAgent::StopPlaying(void) | |
| 135 { | |
| 136 if (mAudioChannelType == AUDIO_AGENT_CHANNEL_ERROR || | |
| 137 !mIsRegToService) { | |
| 138 return NS_ERROR_FAILURE; | |
| 139 } | |
| 140 | |
| 141 AudioChannelService *service = AudioChannelService::GetAudioChannelService(); | |
| 142 service->UnregisterAudioChannelAgent(this); | |
| 143 mIsRegToService = false; | |
| 144 return NS_OK; | |
| 145 } | |
| 146 | |
| 147 /* void setVisibilityState (in boolean visible); */ | |
| 148 NS_IMETHODIMP AudioChannelAgent::SetVisibilityState(bool visible) | |
| 149 { | |
| 150 bool oldVisibility = mVisible; | |
| 151 | |
| 152 nsCOMPtr<nsIAudioChannelAgentCallback> callback = GetCallback(); | |
| 153 | |
| 154 mVisible = visible; | |
| 155 if (mIsRegToService && oldVisibility != mVisible && callback) { | |
| 156 AudioChannelService *service = AudioChannelService::GetAudioChannelService(); | |
| 157 callback->CanPlayChanged(service->GetState(this, !mVisible)); | |
| 158 } | |
| 159 return NS_OK; | |
| 160 } | |
| 161 | |
| 162 void AudioChannelAgent::NotifyAudioChannelStateChanged() | |
| 163 { | |
| 164 nsCOMPtr<nsIAudioChannelAgentCallback> callback = GetCallback(); | |
| 165 if (callback) { | |
| 166 AudioChannelService *service = AudioChannelService::GetAudioChannelService(); | |
| 167 callback->CanPlayChanged(service->GetState(this, !mVisible)); | |
| 168 } | |
| 169 } | |
| 170 | |
| 171 already_AddRefed<nsIAudioChannelAgentCallback> | |
| 172 AudioChannelAgent::GetCallback() | |
| 173 { | |
| 174 nsCOMPtr<nsIAudioChannelAgentCallback> callback = mCallback; | |
| 175 if (!callback) { | |
| 176 callback = do_QueryReferent(mWeakCallback); | |
| 177 } | |
| 178 return callback.forget(); | |
| 179 } | |
| 180 | |
| 181 void | |
| 182 AudioChannelAgent::WindowVolumeChanged() | |
| 183 { | |
| 184 nsCOMPtr<nsIAudioChannelAgentCallback> callback = GetCallback(); | |
| 185 if (!callback) { | |
| 186 return; | |
| 187 } | |
| 188 | |
| 189 callback->WindowVolumeChanged(); | |
| 190 } | |
| 191 | |
| 192 NS_IMETHODIMP | |
| 193 AudioChannelAgent::GetWindowVolume(float* aVolume) | |
| 194 { | |
| 195 NS_ENSURE_ARG_POINTER(aVolume); | |
| 196 | |
| 197 nsCOMPtr<nsPIDOMWindow> win = do_QueryInterface(mWindow); | |
| 198 if (!win) { | |
| 199 *aVolume = 1.0f; | |
| 200 return NS_OK; | |
| 201 } | |
| 202 | |
| 203 *aVolume = win->GetAudioGlobalVolume(); | |
| 204 return NS_OK; | |
| 205 } |
