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comparison: dom/system/gonk/AudioChannelManager.cpp
dom/system/gonk/AudioChannelManager.cpp
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| -1:000000000000 | 0:a6cf7fda046c |
|---|---|
| 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 file, | |
| 3 * You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 4 | |
| 5 #include "nsIDOMClassInfo.h" | |
| 6 #include "nsIDOMEvent.h" | |
| 7 #include "nsIDOMEventListener.h" | |
| 8 #include "nsPIDOMWindow.h" | |
| 9 #include "nsIDocShell.h" | |
| 10 #include "nsIPermissionManager.h" | |
| 11 #include "nsIInterfaceRequestorUtils.h" | |
| 12 #include "AudioChannelManager.h" | |
| 13 #include "mozilla/dom/AudioChannelManagerBinding.h" | |
| 14 | |
| 15 using namespace mozilla::hal; | |
| 16 | |
| 17 namespace mozilla { | |
| 18 namespace dom { | |
| 19 namespace system { | |
| 20 | |
| 21 NS_IMPL_QUERY_INTERFACE_INHERITED(AudioChannelManager, DOMEventTargetHelper, | |
| 22 nsIDOMEventListener) | |
| 23 NS_IMPL_ADDREF_INHERITED(AudioChannelManager, DOMEventTargetHelper) | |
| 24 NS_IMPL_RELEASE_INHERITED(AudioChannelManager, DOMEventTargetHelper) | |
| 25 | |
| 26 AudioChannelManager::AudioChannelManager() | |
| 27 : mState(SWITCH_STATE_UNKNOWN) | |
| 28 , mVolumeChannel(-1) | |
| 29 { | |
| 30 RegisterSwitchObserver(SWITCH_HEADPHONES, this); | |
| 31 mState = GetCurrentSwitchState(SWITCH_HEADPHONES); | |
| 32 SetIsDOMBinding(); | |
| 33 } | |
| 34 | |
| 35 AudioChannelManager::~AudioChannelManager() | |
| 36 { | |
| 37 UnregisterSwitchObserver(SWITCH_HEADPHONES, this); | |
| 38 | |
| 39 nsCOMPtr<EventTarget> target = do_QueryInterface(GetOwner()); | |
| 40 NS_ENSURE_TRUE_VOID(target); | |
| 41 | |
| 42 target->RemoveSystemEventListener(NS_LITERAL_STRING("visibilitychange"), | |
| 43 this, | |
| 44 /* useCapture = */ true); | |
| 45 } | |
| 46 | |
| 47 void | |
| 48 AudioChannelManager::Init(nsPIDOMWindow* aWindow) | |
| 49 { | |
| 50 BindToOwner(aWindow->IsOuterWindow() ? | |
| 51 aWindow->GetCurrentInnerWindow() : aWindow); | |
| 52 | |
| 53 nsCOMPtr<nsIDOMEventTarget> target = do_QueryInterface(GetOwner()); | |
| 54 NS_ENSURE_TRUE_VOID(target); | |
| 55 | |
| 56 target->AddSystemEventListener(NS_LITERAL_STRING("visibilitychange"), | |
| 57 this, | |
| 58 /* useCapture = */ true, | |
| 59 /* wantsUntrusted = */ false); | |
| 60 } | |
| 61 | |
| 62 JSObject* | |
| 63 AudioChannelManager::WrapObject(JSContext* aCx) | |
| 64 { | |
| 65 return AudioChannelManagerBinding::Wrap(aCx, this); | |
| 66 } | |
| 67 | |
| 68 void | |
| 69 AudioChannelManager::Notify(const SwitchEvent& aEvent) | |
| 70 { | |
| 71 mState = aEvent.status(); | |
| 72 | |
| 73 DispatchTrustedEvent(NS_LITERAL_STRING("headphoneschange")); | |
| 74 } | |
| 75 | |
| 76 bool | |
| 77 AudioChannelManager::SetVolumeControlChannel(const nsAString& aChannel) | |
| 78 { | |
| 79 if (aChannel.EqualsASCII("publicnotification")) { | |
| 80 return false; | |
| 81 } | |
| 82 | |
| 83 AudioChannel newChannel = AudioChannelService::GetAudioChannel(aChannel); | |
| 84 | |
| 85 // Only normal channel doesn't need permission. | |
| 86 if (newChannel != AudioChannel::Normal) { | |
| 87 nsCOMPtr<nsIPermissionManager> permissionManager = | |
| 88 do_GetService(NS_PERMISSIONMANAGER_CONTRACTID); | |
| 89 if (!permissionManager) { | |
| 90 return false; | |
| 91 } | |
| 92 uint32_t perm = nsIPermissionManager::UNKNOWN_ACTION; | |
| 93 permissionManager->TestPermissionFromWindow(GetOwner(), | |
| 94 nsCString(NS_LITERAL_CSTRING("audio-channel-") + | |
| 95 NS_ConvertUTF16toUTF8(aChannel)).get(), &perm); | |
| 96 if (perm != nsIPermissionManager::ALLOW_ACTION) { | |
| 97 return false; | |
| 98 } | |
| 99 } | |
| 100 | |
| 101 if (mVolumeChannel == (int32_t)newChannel) { | |
| 102 return true; | |
| 103 } | |
| 104 | |
| 105 mVolumeChannel = (int32_t)newChannel; | |
| 106 | |
| 107 NotifyVolumeControlChannelChanged(); | |
| 108 return true; | |
| 109 } | |
| 110 | |
| 111 bool | |
| 112 AudioChannelManager::GetVolumeControlChannel(nsAString & aChannel) | |
| 113 { | |
| 114 if (mVolumeChannel >= 0) { | |
| 115 AudioChannelService::GetAudioChannelString( | |
| 116 static_cast<AudioChannel>(mVolumeChannel), | |
| 117 aChannel); | |
| 118 } else { | |
| 119 aChannel.AssignASCII(""); | |
| 120 } | |
| 121 | |
| 122 return true; | |
| 123 } | |
| 124 | |
| 125 void | |
| 126 AudioChannelManager::NotifyVolumeControlChannelChanged() | |
| 127 { | |
| 128 nsCOMPtr<nsIDocShell> docshell = do_GetInterface(GetOwner()); | |
| 129 NS_ENSURE_TRUE_VOID(docshell); | |
| 130 | |
| 131 bool isActive = false; | |
| 132 docshell->GetIsActive(&isActive); | |
| 133 | |
| 134 AudioChannelService* service = AudioChannelService::GetAudioChannelService(); | |
| 135 if (isActive) { | |
| 136 service->SetDefaultVolumeControlChannel(mVolumeChannel, isActive); | |
| 137 } else { | |
| 138 service->SetDefaultVolumeControlChannel(-1, isActive); | |
| 139 } | |
| 140 } | |
| 141 | |
| 142 NS_IMETHODIMP | |
| 143 AudioChannelManager::HandleEvent(nsIDOMEvent* aEvent) | |
| 144 { | |
| 145 nsAutoString type; | |
| 146 aEvent->GetType(type); | |
| 147 | |
| 148 if (type.EqualsLiteral("visibilitychange")) { | |
| 149 NotifyVolumeControlChannelChanged(); | |
| 150 } | |
| 151 return NS_OK; | |
| 152 } | |
| 153 | |
| 154 } // namespace system | |
| 155 } // namespace dom | |
| 156 } // namespace mozilla |
