The Tor Browser: dom/bluetooth/bluez/BluetoothUtils.cpp@b8a032363ba2 (annotated)

dom/bluetooth/bluez/BluetoothUtils.cpp@b8a032363ba2 (annotated)

dom/bluetooth/bluez/BluetoothUtils.cpp

Thu, 22 Jan 2015 13:21:57 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Thu, 22 Jan 2015 13:21:57 +0100
branch: TOR_BUG_9701
changeset 15: b8a032363ba2
permissions: -rw-r--r--

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

 /* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 40 -*- */
 /* vim: set ts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
  * You can obtain one at http://mozilla.org/MPL/2.0/. */
 #include "base/basictypes.h"
 #include "BluetoothReplyRunnable.h"
 #include "BluetoothService.h"
 #include "BluetoothUtils.h"
 #include "jsapi.h"
 #include "mozilla/Scoped.h"
 #include "mozilla/dom/bluetooth/BluetoothTypes.h"
 #include "nsContentUtils.h"
 #include "nsCxPusher.h"
 #include "nsIScriptContext.h"
 #include "nsISystemMessagesInternal.h"
 #include "nsString.h"
 #include "nsTArray.h"
 #include "nsServiceManagerUtils.h"
 BEGIN_BLUETOOTH_NAMESPACE
 bool
 SetJsObject(JSContext* aContext,
             const BluetoothValue& aValue,
             JS::Handle<JSObject*> aObj)
 {
   MOZ_ASSERT(aContext && aObj);
   if (aValue.type() != BluetoothValue::TArrayOfBluetoothNamedValue) {
     BT_WARNING("SetJsObject: Invalid parameter type");
     return false;
   }
   const nsTArray<BluetoothNamedValue>& arr =
     aValue.get_ArrayOfBluetoothNamedValue();
   for (uint32_t i = 0; i < arr.Length(); i++) {
     JS::Rooted<JS::Value> val(aContext);
     const BluetoothValue& v = arr[i].value();
     switch(v.type()) {
        case BluetoothValue::TnsString: {
         JSString* jsData = JS_NewUCStringCopyN(aContext,
                                      v.get_nsString().BeginReading(),
                                      v.get_nsString().Length());
         NS_ENSURE_TRUE(jsData, false);
         val = STRING_TO_JSVAL(jsData);
         break;
       }
       case BluetoothValue::Tuint32_t:
         val = INT_TO_JSVAL(v.get_uint32_t());
         break;
       case BluetoothValue::Tbool:
         val = BOOLEAN_TO_JSVAL(v.get_bool());
         break;
       default:
         BT_WARNING("SetJsObject: Parameter is not handled");
         break;
     }
     if (!JS_SetProperty(aContext, aObj,
                         NS_ConvertUTF16toUTF8(arr[i].name()).get(),
                         val)) {
       BT_WARNING("Failed to set property");
       return false;
     }
   }
   return true;
 }
 nsString
 GetObjectPathFromAddress(const nsAString& aAdapterPath,
                          const nsAString& aDeviceAddress)
 {
   // The object path would be like /org/bluez/2906/hci0/dev_00_23_7F_CB_B4_F1,
   // and the adapter path would be the first part of the object path, according
   // to the example above, it's /org/bluez/2906/hci0.
   nsString devicePath(aAdapterPath);
   devicePath.AppendLiteral("/dev_");
   devicePath.Append(aDeviceAddress);
   devicePath.ReplaceChar(':', '_');
   return devicePath;
 }
 nsString
 GetAddressFromObjectPath(const nsAString& aObjectPath)
 {
   // The object path would be like /org/bluez/2906/hci0/dev_00_23_7F_CB_B4_F1,
   // and the adapter path would be the first part of the object path, according
   // to the example above, it's /org/bluez/2906/hci0.
   nsString address(aObjectPath);
   int addressHead = address.RFind("/") + 5;
   MOZ_ASSERT(addressHead + BLUETOOTH_ADDRESS_LENGTH == (int)address.Length());
   address.Cut(0, addressHead);
   address.ReplaceChar('_', ':');
   return address;
 }
 bool
 BroadcastSystemMessage(const nsAString& aType,
                        const InfallibleTArray<BluetoothNamedValue>& aData)
 {
   mozilla::AutoSafeJSContext cx;
   NS_ASSERTION(!::JS_IsExceptionPending(cx),
       "Shouldn't get here when an exception is pending!");
   JS::Rooted<JSObject*> obj(cx, JS_NewObject(cx, nullptr, JS::NullPtr(),
                                              JS::NullPtr()));
   if (!obj) {
     BT_WARNING("Failed to new JSObject for system message!");
     return false;
   }
   if (!SetJsObject(cx, aData, obj)) {
     BT_WARNING("Failed to set properties of system message!");
     return false;
   }
   nsCOMPtr<nsISystemMessagesInternal> systemMessenger =
     do_GetService("@mozilla.org/system-message-internal;1");
   NS_ENSURE_TRUE(systemMessenger, false);
   JS::Rooted<JS::Value> value(cx, JS::ObjectValue(*obj));
   systemMessenger->BroadcastMessage(aType, value,
                                     JS::UndefinedHandleValue);
   return true;
 }
 void
 DispatchBluetoothReply(BluetoothReplyRunnable* aRunnable,
                        const BluetoothValue& aValue,
                        const nsAString& aErrorStr)
 {
   // Reply will be deleted by the runnable after running on main thread
   BluetoothReply* reply;
   if (!aErrorStr.IsEmpty()) {
     nsString err(aErrorStr);
     reply = new BluetoothReply(BluetoothReplyError(err));
   } else {
     MOZ_ASSERT(aValue.type() != BluetoothValue::T__None);
     reply = new BluetoothReply(BluetoothReplySuccess(aValue));
   }
   aRunnable->SetReply(reply);
   if (NS_FAILED(NS_DispatchToMainThread(aRunnable))) {
     BT_WARNING("Failed to dispatch to main thread!");
   }
 }
 void
 ParseAtCommand(const nsACString& aAtCommand, const int aStart,
                nsTArray<nsCString>& aRetValues)
 {
   int length = aAtCommand.Length();
   int begin = aStart;
   for (int i = aStart; i < length; ++i) {
     // Use ',' as separator
     if (aAtCommand[i] == ',') {
       nsCString tmp(nsDependentCSubstring(aAtCommand, begin, i - begin));
       aRetValues.AppendElement(tmp);
       begin = i + 1;
     }
   }
   nsCString tmp(nsDependentCSubstring(aAtCommand, begin));
   aRetValues.AppendElement(tmp);
 }
 void
 DispatchStatusChangedEvent(const nsAString& aType,
                            const nsAString& aAddress,
                            bool aStatus)
 {
   MOZ_ASSERT(NS_IsMainThread());
   InfallibleTArray<BluetoothNamedValue> data;
   data.AppendElement(
     BluetoothNamedValue(NS_LITERAL_STRING("address"), nsString(aAddress)));
   data.AppendElement(
     BluetoothNamedValue(NS_LITERAL_STRING("status"), aStatus));
   BluetoothSignal signal(nsString(aType), NS_LITERAL_STRING(KEY_ADAPTER), data);
   BluetoothService* bs = BluetoothService::Get();
   NS_ENSURE_TRUE_VOID(bs);
   bs->DistributeSignal(signal);
 }
 END_BLUETOOTH_NAMESPACE

The Tor Browser / annotate

dom/bluetooth/bluez/BluetoothUtils.cpp@b8a032363ba2 (annotated)

dom/bluetooth/bluez/BluetoothUtils.cpp