1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/dom/bluetooth/bluez/BluetoothUtils.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,199 @@
1.4 +/* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 40 -*- */
1.5 +/* vim: set ts=2 et sw=2 tw=80: */
1.6 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this file,
1.8 + * You can obtain one at http://mozilla.org/MPL/2.0/. */
1.9 +
1.10 +#include "base/basictypes.h"
1.11 +
1.12 +#include "BluetoothReplyRunnable.h"
1.13 +#include "BluetoothService.h"
1.14 +#include "BluetoothUtils.h"
1.15 +#include "jsapi.h"
1.16 +#include "mozilla/Scoped.h"
1.17 +#include "mozilla/dom/bluetooth/BluetoothTypes.h"
1.18 +#include "nsContentUtils.h"
1.19 +#include "nsCxPusher.h"
1.20 +#include "nsIScriptContext.h"
1.21 +#include "nsISystemMessagesInternal.h"
1.22 +#include "nsString.h"
1.23 +#include "nsTArray.h"
1.24 +#include "nsServiceManagerUtils.h"
1.25 +
1.26 +BEGIN_BLUETOOTH_NAMESPACE
1.27 +
1.28 +bool
1.29 +SetJsObject(JSContext* aContext,
1.30 + const BluetoothValue& aValue,
1.31 + JS::Handle<JSObject*> aObj)
1.32 +{
1.33 + MOZ_ASSERT(aContext && aObj);
1.34 +
1.35 + if (aValue.type() != BluetoothValue::TArrayOfBluetoothNamedValue) {
1.36 + BT_WARNING("SetJsObject: Invalid parameter type");
1.37 + return false;
1.38 + }
1.39 +
1.40 + const nsTArray<BluetoothNamedValue>& arr =
1.41 + aValue.get_ArrayOfBluetoothNamedValue();
1.42 +
1.43 + for (uint32_t i = 0; i < arr.Length(); i++) {
1.44 + JS::Rooted<JS::Value> val(aContext);
1.45 + const BluetoothValue& v = arr[i].value();
1.46 +
1.47 + switch(v.type()) {
1.48 + case BluetoothValue::TnsString: {
1.49 + JSString* jsData = JS_NewUCStringCopyN(aContext,
1.50 + v.get_nsString().BeginReading(),
1.51 + v.get_nsString().Length());
1.52 + NS_ENSURE_TRUE(jsData, false);
1.53 + val = STRING_TO_JSVAL(jsData);
1.54 + break;
1.55 + }
1.56 + case BluetoothValue::Tuint32_t:
1.57 + val = INT_TO_JSVAL(v.get_uint32_t());
1.58 + break;
1.59 + case BluetoothValue::Tbool:
1.60 + val = BOOLEAN_TO_JSVAL(v.get_bool());
1.61 + break;
1.62 + default:
1.63 + BT_WARNING("SetJsObject: Parameter is not handled");
1.64 + break;
1.65 + }
1.66 +
1.67 + if (!JS_SetProperty(aContext, aObj,
1.68 + NS_ConvertUTF16toUTF8(arr[i].name()).get(),
1.69 + val)) {
1.70 + BT_WARNING("Failed to set property");
1.71 + return false;
1.72 + }
1.73 + }
1.74 +
1.75 + return true;
1.76 +}
1.77 +
1.78 +nsString
1.79 +GetObjectPathFromAddress(const nsAString& aAdapterPath,
1.80 + const nsAString& aDeviceAddress)
1.81 +{
1.82 + // The object path would be like /org/bluez/2906/hci0/dev_00_23_7F_CB_B4_F1,
1.83 + // and the adapter path would be the first part of the object path, according
1.84 + // to the example above, it's /org/bluez/2906/hci0.
1.85 + nsString devicePath(aAdapterPath);
1.86 + devicePath.AppendLiteral("/dev_");
1.87 + devicePath.Append(aDeviceAddress);
1.88 + devicePath.ReplaceChar(':', '_');
1.89 + return devicePath;
1.90 +}
1.91 +
1.92 +nsString
1.93 +GetAddressFromObjectPath(const nsAString& aObjectPath)
1.94 +{
1.95 + // The object path would be like /org/bluez/2906/hci0/dev_00_23_7F_CB_B4_F1,
1.96 + // and the adapter path would be the first part of the object path, according
1.97 + // to the example above, it's /org/bluez/2906/hci0.
1.98 + nsString address(aObjectPath);
1.99 + int addressHead = address.RFind("/") + 5;
1.100 +
1.101 + MOZ_ASSERT(addressHead + BLUETOOTH_ADDRESS_LENGTH == (int)address.Length());
1.102 +
1.103 + address.Cut(0, addressHead);
1.104 + address.ReplaceChar('_', ':');
1.105 +
1.106 + return address;
1.107 +}
1.108 +
1.109 +bool
1.110 +BroadcastSystemMessage(const nsAString& aType,
1.111 + const InfallibleTArray<BluetoothNamedValue>& aData)
1.112 +{
1.113 + mozilla::AutoSafeJSContext cx;
1.114 + NS_ASSERTION(!::JS_IsExceptionPending(cx),
1.115 + "Shouldn't get here when an exception is pending!");
1.116 +
1.117 + JS::Rooted<JSObject*> obj(cx, JS_NewObject(cx, nullptr, JS::NullPtr(),
1.118 + JS::NullPtr()));
1.119 + if (!obj) {
1.120 + BT_WARNING("Failed to new JSObject for system message!");
1.121 + return false;
1.122 + }
1.123 +
1.124 + if (!SetJsObject(cx, aData, obj)) {
1.125 + BT_WARNING("Failed to set properties of system message!");
1.126 + return false;
1.127 + }
1.128 +
1.129 + nsCOMPtr<nsISystemMessagesInternal> systemMessenger =
1.130 + do_GetService("@mozilla.org/system-message-internal;1");
1.131 + NS_ENSURE_TRUE(systemMessenger, false);
1.132 +
1.133 + JS::Rooted<JS::Value> value(cx, JS::ObjectValue(*obj));
1.134 + systemMessenger->BroadcastMessage(aType, value,
1.135 + JS::UndefinedHandleValue);
1.136 +
1.137 + return true;
1.138 +}
1.139 +
1.140 +void
1.141 +DispatchBluetoothReply(BluetoothReplyRunnable* aRunnable,
1.142 + const BluetoothValue& aValue,
1.143 + const nsAString& aErrorStr)
1.144 +{
1.145 + // Reply will be deleted by the runnable after running on main thread
1.146 + BluetoothReply* reply;
1.147 + if (!aErrorStr.IsEmpty()) {
1.148 + nsString err(aErrorStr);
1.149 + reply = new BluetoothReply(BluetoothReplyError(err));
1.150 + } else {
1.151 + MOZ_ASSERT(aValue.type() != BluetoothValue::T__None);
1.152 + reply = new BluetoothReply(BluetoothReplySuccess(aValue));
1.153 + }
1.154 +
1.155 + aRunnable->SetReply(reply);
1.156 + if (NS_FAILED(NS_DispatchToMainThread(aRunnable))) {
1.157 + BT_WARNING("Failed to dispatch to main thread!");
1.158 + }
1.159 +}
1.160 +
1.161 +void
1.162 +ParseAtCommand(const nsACString& aAtCommand, const int aStart,
1.163 + nsTArray<nsCString>& aRetValues)
1.164 +{
1.165 + int length = aAtCommand.Length();
1.166 + int begin = aStart;
1.167 +
1.168 + for (int i = aStart; i < length; ++i) {
1.169 + // Use ',' as separator
1.170 + if (aAtCommand[i] == ',') {
1.171 + nsCString tmp(nsDependentCSubstring(aAtCommand, begin, i - begin));
1.172 + aRetValues.AppendElement(tmp);
1.173 +
1.174 + begin = i + 1;
1.175 + }
1.176 + }
1.177 +
1.178 + nsCString tmp(nsDependentCSubstring(aAtCommand, begin));
1.179 + aRetValues.AppendElement(tmp);
1.180 +}
1.181 +
1.182 +void
1.183 +DispatchStatusChangedEvent(const nsAString& aType,
1.184 + const nsAString& aAddress,
1.185 + bool aStatus)
1.186 +{
1.187 + MOZ_ASSERT(NS_IsMainThread());
1.188 +
1.189 + InfallibleTArray<BluetoothNamedValue> data;
1.190 + data.AppendElement(
1.191 + BluetoothNamedValue(NS_LITERAL_STRING("address"), nsString(aAddress)));
1.192 + data.AppendElement(
1.193 + BluetoothNamedValue(NS_LITERAL_STRING("status"), aStatus));
1.194 +
1.195 + BluetoothSignal signal(nsString(aType), NS_LITERAL_STRING(KEY_ADAPTER), data);
1.196 +
1.197 + BluetoothService* bs = BluetoothService::Get();
1.198 + NS_ENSURE_TRUE_VOID(bs);
1.199 + bs->DistributeSignal(signal);
1.200 +}
1.201 +
1.202 +END_BLUETOOTH_NAMESPACE
