dom/voicemail/Voicemail.cpp

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   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 "Voicemail.h"
   8
   9 #include "mozilla/dom/MozVoicemailBinding.h"
  10 #include "mozilla/dom/MozVoicemailEvent.h"
  11 #include "mozilla/dom/MozVoicemailStatusBinding.h"
  12
  13 #include "mozilla/Preferences.h"
  14 #include "mozilla/Services.h"
  15 #include "nsContentUtils.h"
  16 #include "nsDOMClassInfo.h"
  17 #include "nsServiceManagerUtils.h"
  18
  19 #define NS_RILCONTENTHELPER_CONTRACTID "@mozilla.org/ril/content-helper;1"
  20 const char* kPrefRilNumRadioInterfaces = "ril.numRadioInterfaces";
  21
  22 using namespace mozilla::dom;
  23
  24 class Voicemail::Listener MOZ_FINAL : public nsIVoicemailListener
  25 {
  26   Voicemail* mVoicemail;
  27
  28 public:
  29   NS_DECL_ISUPPORTS
  30   NS_FORWARD_SAFE_NSIVOICEMAILLISTENER(mVoicemail)
  31
  32   Listener(Voicemail* aVoicemail)
  33     : mVoicemail(aVoicemail)
  34   {
  35     MOZ_ASSERT(mVoicemail);
  36   }
  37
  38   void Disconnect()
  39   {
  40     MOZ_ASSERT(mVoicemail);
  41     mVoicemail = nullptr;
  42   }
  43
  44 private:
  45   ~Listener()
  46   {
  47     MOZ_ASSERT(!mVoicemail);
  48   }
  49 };
  50
  51 NS_IMPL_ISUPPORTS(Voicemail::Listener, nsIVoicemailListener)
  52
  53 Voicemail::Voicemail(nsPIDOMWindow* aWindow,
  54                      nsIVoicemailProvider* aProvider)
  55   : DOMEventTargetHelper(aWindow)
  56   , mProvider(aProvider)
  57 {
  58   mListener = new Listener(this);
  59   DebugOnly<nsresult> rv = mProvider->RegisterVoicemailMsg(mListener);
  60   NS_WARN_IF_FALSE(NS_SUCCEEDED(rv),
  61                    "Failed registering voicemail messages with provider");
  62 }
  63
  64 Voicemail::~Voicemail()
  65 {
  66   MOZ_ASSERT(mProvider && mListener);
  67
  68   mListener->Disconnect();
  69   mProvider->UnregisterVoicemailMsg(mListener);
  70 }
  71
  72 NS_IMPL_ISUPPORTS_INHERITED0(Voicemail, DOMEventTargetHelper)
  73
  74 JSObject*
  75 Voicemail::WrapObject(JSContext* aCx)
  76 {
  77   return MozVoicemailBinding::Wrap(aCx, this);
  78 }
  79
  80 bool
  81 Voicemail::IsValidServiceId(uint32_t aServiceId) const
  82 {
  83   uint32_t numClients = mozilla::Preferences::GetUint(kPrefRilNumRadioInterfaces, 1);
  84
  85   return aServiceId < numClients;
  86 }
  87
  88 bool
  89 Voicemail::PassedOrDefaultServiceId(const Optional<uint32_t>& aServiceId,
  90                                     uint32_t& aResult) const
  91 {
  92   if (aServiceId.WasPassed()) {
  93     if (!IsValidServiceId(aServiceId.Value())) {
  94       return false;
  95     }
  96     aResult = aServiceId.Value();
  97   } else {
  98     mProvider->GetVoicemailDefaultServiceId(&aResult);
  99   }
 100
 101   return true;
 102 }
 103
 104 // MozVoicemail WebIDL
 105
 106 already_AddRefed<MozVoicemailStatus>
 107 Voicemail::GetStatus(const Optional<uint32_t>& aServiceId,
 108                      ErrorResult& aRv) const
 109 {
 110   if (!mProvider) {
 111     aRv.Throw(NS_ERROR_UNEXPECTED);
 112     return nullptr;
 113   }
 114
 115   uint32_t id = 0;
 116   if (!PassedOrDefaultServiceId(aServiceId, id)) {
 117     aRv.Throw(NS_ERROR_INVALID_ARG);
 118     return nullptr;
 119   }
 120   JSContext *cx = nsContentUtils::GetCurrentJSContext();
 121   JS::Rooted<JS::Value> status(cx);
 122   nsresult rv = mProvider->GetVoicemailStatus(id, &status);
 123   if (NS_FAILED(rv)) {
 124     aRv.Throw(rv);
 125     return nullptr;
 126   }
 127   if (!status.isObject()) {
 128     aRv.Throw(NS_ERROR_UNEXPECTED);
 129     return nullptr;
 130   }
 131   JS::Rooted<JSObject*> statusObj(cx, &status.toObject());
 132   nsRefPtr<MozVoicemailStatus> res = new MozVoicemailStatus(statusObj, GetParentObject());
 133   return res.forget();
 134 }
 135
 136 void
 137 Voicemail::GetNumber(const Optional<uint32_t>& aServiceId, nsString& aNumber,
 138                      ErrorResult& aRv) const
 139 {
 140   aNumber.SetIsVoid(true);
 141
 142   if (!mProvider) {
 143     aRv.Throw(NS_ERROR_UNEXPECTED);
 144     return;
 145   }
 146
 147   uint32_t id = 0;
 148   if (!PassedOrDefaultServiceId(aServiceId, id)) {
 149     aRv.Throw(NS_ERROR_INVALID_ARG);
 150     return;
 151   }
 152
 153   aRv = mProvider->GetVoicemailNumber(id, aNumber);
 154 }
 155
 156 void
 157 Voicemail::GetDisplayName(const Optional<uint32_t>& aServiceId, nsString& aDisplayName,
 158                           ErrorResult& aRv) const
 159 {
 160   aDisplayName.SetIsVoid(true);
 161
 162   if (!mProvider) {
 163     aRv.Throw(NS_ERROR_UNEXPECTED);
 164     return;
 165   }
 166
 167   uint32_t id = 0;
 168   if (!PassedOrDefaultServiceId(aServiceId, id)) {
 169     aRv.Throw(NS_ERROR_INVALID_ARG);
 170     return;
 171   }
 172
 173   aRv = mProvider->GetVoicemailDisplayName(id, aDisplayName);
 174 }
 175
 176 // nsIVoicemailListener
 177
 178 NS_IMETHODIMP
 179 Voicemail::NotifyStatusChanged(JS::HandleValue aStatus)
 180 {
 181   MozVoicemailEventInit init;
 182   init.mBubbles = false;
 183   init.mCancelable = false;
 184   if (aStatus.isObject()) {
 185     JSContext *cx = nsContentUtils::GetCurrentJSContext();
 186     JS::Rooted<JSObject*> statusObj(cx, &aStatus.toObject());
 187     init.mStatus = new MozVoicemailStatus(statusObj, GetParentObject());
 188   }
 189
 190   nsRefPtr<MozVoicemailEvent> event =
 191     MozVoicemailEvent::Constructor(this, NS_LITERAL_STRING("statuschanged"), init);
 192   return DispatchTrustedEvent(event);
 193 }
 194
 195 nsresult
 196 NS_NewVoicemail(nsPIDOMWindow* aWindow, Voicemail** aVoicemail)
 197 {
 198   nsPIDOMWindow* innerWindow = aWindow->IsInnerWindow() ?
 199     aWindow :
 200     aWindow->GetCurrentInnerWindow();
 201
 202   nsCOMPtr<nsIVoicemailProvider> provider =
 203     do_GetService(NS_RILCONTENTHELPER_CONTRACTID);
 204   NS_ENSURE_STATE(provider);
 205
 206   nsRefPtr<Voicemail> voicemail = new Voicemail(innerWindow, provider);
 207   voicemail.forget(aVoicemail);
 208   return NS_OK;
 209 }