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comparison: content/media/webspeech/synth/SpeechSynthesis.cpp
content/media/webspeech/synth/SpeechSynthesis.cpp
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- TOR_BUG_9701
- changeset 8
- 97036ab72558
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| -1:000000000000 | 0:f21cad0be94e |
|---|---|
| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* vim:set ts=2 sw=2 sts=2 et cindent: */ | |
| 3 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 4 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 6 | |
| 7 #include "nsSpeechTask.h" | |
| 8 #include "prlog.h" | |
| 9 | |
| 10 #include "mozilla/dom/ContentChild.h" | |
| 11 #include "mozilla/dom/Element.h" | |
| 12 | |
| 13 #include "mozilla/dom/SpeechSynthesisBinding.h" | |
| 14 #include "SpeechSynthesis.h" | |
| 15 #include "nsSynthVoiceRegistry.h" | |
| 16 #include "nsIDocument.h" | |
| 17 | |
| 18 #undef LOG | |
| 19 #ifdef PR_LOGGING | |
| 20 PRLogModuleInfo* | |
| 21 GetSpeechSynthLog() | |
| 22 { | |
| 23 static PRLogModuleInfo* sLog = nullptr; | |
| 24 | |
| 25 if (!sLog) { | |
| 26 sLog = PR_NewLogModule("SpeechSynthesis"); | |
| 27 } | |
| 28 | |
| 29 return sLog; | |
| 30 } | |
| 31 #define LOG(type, msg) PR_LOG(GetSpeechSynthLog(), type, msg) | |
| 32 #else | |
| 33 #define LOG(type, msg) | |
| 34 #endif | |
| 35 | |
| 36 namespace mozilla { | |
| 37 namespace dom { | |
| 38 | |
| 39 static PLDHashOperator | |
| 40 TraverseCachedVoices(const nsAString& aKey, SpeechSynthesisVoice* aEntry, void* aData) | |
| 41 { | |
| 42 nsCycleCollectionTraversalCallback* cb = static_cast<nsCycleCollectionTraversalCallback*>(aData); | |
| 43 cb->NoteXPCOMChild(aEntry); | |
| 44 return PL_DHASH_NEXT; | |
| 45 } | |
| 46 | |
| 47 NS_IMPL_CYCLE_COLLECTION_CLASS(SpeechSynthesis) | |
| 48 | |
| 49 NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(SpeechSynthesis) | |
| 50 NS_IMPL_CYCLE_COLLECTION_UNLINK(mParent) | |
| 51 NS_IMPL_CYCLE_COLLECTION_UNLINK(mCurrentTask) | |
| 52 NS_IMPL_CYCLE_COLLECTION_UNLINK(mSpeechQueue) | |
| 53 NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER | |
| 54 tmp->mVoiceCache.Clear(); | |
| 55 NS_IMPL_CYCLE_COLLECTION_UNLINK_END | |
| 56 | |
| 57 NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(SpeechSynthesis) | |
| 58 NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mParent) | |
| 59 NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mCurrentTask) | |
| 60 NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mSpeechQueue) | |
| 61 NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS | |
| 62 tmp->mVoiceCache.EnumerateRead(TraverseCachedVoices, &cb); | |
| 63 NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END | |
| 64 | |
| 65 NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN(SpeechSynthesis) | |
| 66 NS_IMPL_CYCLE_COLLECTION_TRACE_PRESERVED_WRAPPER | |
| 67 NS_IMPL_CYCLE_COLLECTION_TRACE_END | |
| 68 | |
| 69 NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(SpeechSynthesis) | |
| 70 NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY | |
| 71 NS_INTERFACE_MAP_ENTRY(nsISupports) | |
| 72 NS_INTERFACE_MAP_END | |
| 73 | |
| 74 NS_IMPL_CYCLE_COLLECTING_ADDREF(SpeechSynthesis) | |
| 75 NS_IMPL_CYCLE_COLLECTING_RELEASE(SpeechSynthesis) | |
| 76 | |
| 77 SpeechSynthesis::SpeechSynthesis(nsPIDOMWindow* aParent) | |
| 78 : mParent(aParent) | |
| 79 { | |
| 80 SetIsDOMBinding(); | |
| 81 } | |
| 82 | |
| 83 SpeechSynthesis::~SpeechSynthesis() | |
| 84 { | |
| 85 } | |
| 86 | |
| 87 JSObject* | |
| 88 SpeechSynthesis::WrapObject(JSContext* aCx) | |
| 89 { | |
| 90 return SpeechSynthesisBinding::Wrap(aCx, this); | |
| 91 } | |
| 92 | |
| 93 nsIDOMWindow* | |
| 94 SpeechSynthesis::GetParentObject() const | |
| 95 { | |
| 96 return mParent; | |
| 97 } | |
| 98 | |
| 99 bool | |
| 100 SpeechSynthesis::Pending() const | |
| 101 { | |
| 102 switch (mSpeechQueue.Length()) { | |
| 103 case 0: | |
| 104 return false; | |
| 105 | |
| 106 case 1: | |
| 107 return mSpeechQueue.ElementAt(0)->GetState() == SpeechSynthesisUtterance::STATE_PENDING; | |
| 108 | |
| 109 default: | |
| 110 return true; | |
| 111 } | |
| 112 } | |
| 113 | |
| 114 bool | |
| 115 SpeechSynthesis::Speaking() const | |
| 116 { | |
| 117 if (mSpeechQueue.IsEmpty()) { | |
| 118 return false; | |
| 119 } | |
| 120 | |
| 121 return mSpeechQueue.ElementAt(0)->GetState() == SpeechSynthesisUtterance::STATE_SPEAKING; | |
| 122 } | |
| 123 | |
| 124 bool | |
| 125 SpeechSynthesis::Paused() const | |
| 126 { | |
| 127 if (mSpeechQueue.IsEmpty()) { | |
| 128 return false; | |
| 129 } | |
| 130 | |
| 131 return mSpeechQueue.ElementAt(0)->IsPaused(); | |
| 132 } | |
| 133 | |
| 134 void | |
| 135 SpeechSynthesis::Speak(SpeechSynthesisUtterance& aUtterance) | |
| 136 { | |
| 137 if (aUtterance.mState != SpeechSynthesisUtterance::STATE_NONE) { | |
| 138 // XXX: Should probably raise an error | |
| 139 return; | |
| 140 } | |
| 141 | |
| 142 mSpeechQueue.AppendElement(&aUtterance); | |
| 143 aUtterance.mState = SpeechSynthesisUtterance::STATE_PENDING; | |
| 144 | |
| 145 if (mSpeechQueue.Length() == 1) { | |
| 146 AdvanceQueue(); | |
| 147 } | |
| 148 } | |
| 149 | |
| 150 void | |
| 151 SpeechSynthesis::AdvanceQueue() | |
| 152 { | |
| 153 LOG(PR_LOG_DEBUG, | |
| 154 ("SpeechSynthesis::AdvanceQueue length=%d", mSpeechQueue.Length())); | |
| 155 | |
| 156 if (mSpeechQueue.IsEmpty()) { | |
| 157 return; | |
| 158 } | |
| 159 | |
| 160 nsRefPtr<SpeechSynthesisUtterance> utterance = mSpeechQueue.ElementAt(0); | |
| 161 | |
| 162 nsAutoString docLang; | |
| 163 nsCOMPtr<nsPIDOMWindow> win = do_QueryInterface(mParent); | |
| 164 nsIDocument* doc = win->GetExtantDoc(); | |
| 165 | |
| 166 if (doc) { | |
| 167 Element* elm = doc->GetHtmlElement(); | |
| 168 | |
| 169 if (elm) { | |
| 170 elm->GetLang(docLang); | |
| 171 } | |
| 172 } | |
| 173 | |
| 174 mCurrentTask = | |
| 175 nsSynthVoiceRegistry::GetInstance()->SpeakUtterance(*utterance, docLang); | |
| 176 | |
| 177 if (mCurrentTask) { | |
| 178 mCurrentTask->SetSpeechSynthesis(this); | |
| 179 } | |
| 180 | |
| 181 return; | |
| 182 } | |
| 183 | |
| 184 void | |
| 185 SpeechSynthesis::Cancel() | |
| 186 { | |
| 187 mSpeechQueue.Clear(); | |
| 188 | |
| 189 if (mCurrentTask) { | |
| 190 mCurrentTask->Cancel(); | |
| 191 } | |
| 192 } | |
| 193 | |
| 194 void | |
| 195 SpeechSynthesis::Pause() | |
| 196 { | |
| 197 if (mCurrentTask) { | |
| 198 mCurrentTask->Pause(); | |
| 199 } | |
| 200 } | |
| 201 | |
| 202 void | |
| 203 SpeechSynthesis::Resume() | |
| 204 { | |
| 205 if (mCurrentTask) { | |
| 206 mCurrentTask->Resume(); | |
| 207 } | |
| 208 } | |
| 209 | |
| 210 void | |
| 211 SpeechSynthesis::OnEnd(const nsSpeechTask* aTask) | |
| 212 { | |
| 213 MOZ_ASSERT(mCurrentTask == aTask); | |
| 214 | |
| 215 if (!mSpeechQueue.IsEmpty()) { | |
| 216 mSpeechQueue.RemoveElementAt(0); | |
| 217 } | |
| 218 | |
| 219 mCurrentTask = nullptr; | |
| 220 AdvanceQueue(); | |
| 221 } | |
| 222 | |
| 223 void | |
| 224 SpeechSynthesis::GetVoices(nsTArray< nsRefPtr<SpeechSynthesisVoice> >& aResult) | |
| 225 { | |
| 226 aResult.Clear(); | |
| 227 uint32_t voiceCount = 0; | |
| 228 | |
| 229 nsresult rv = nsSynthVoiceRegistry::GetInstance()->GetVoiceCount(&voiceCount); | |
| 230 NS_ENSURE_SUCCESS_VOID(rv); | |
| 231 | |
| 232 for (uint32_t i = 0; i < voiceCount; i++) { | |
| 233 nsAutoString uri; | |
| 234 rv = nsSynthVoiceRegistry::GetInstance()->GetVoice(i, uri); | |
| 235 | |
| 236 if (NS_FAILED(rv)) { | |
| 237 NS_WARNING("Failed to retrieve voice from registry"); | |
| 238 continue; | |
| 239 } | |
| 240 | |
| 241 SpeechSynthesisVoice* voice = mVoiceCache.GetWeak(uri); | |
| 242 | |
| 243 if (!voice) { | |
| 244 voice = new SpeechSynthesisVoice(this, uri); | |
| 245 } | |
| 246 | |
| 247 aResult.AppendElement(voice); | |
| 248 } | |
| 249 | |
| 250 mVoiceCache.Clear(); | |
| 251 | |
| 252 for (uint32_t i = 0; i < aResult.Length(); i++) { | |
| 253 SpeechSynthesisVoice* voice = aResult[i]; | |
| 254 mVoiceCache.Put(voice->mUri, voice); | |
| 255 } | |
| 256 } | |
| 257 | |
| 258 } // namespace dom | |
| 259 } // namespace mozilla |
