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/*
* Copyright (C) 2015, 2016 Ericsson AB. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name of Ericsson nor the names of its contributors
* may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
// @conditional=ENABLE(WEB_RTC)
// @internal
// Operation queue as specified in section 4.3.1 (WebRTC 1.0)
function enqueueOperation(peerConnection, operation)
{
"use strict";
const operations = peerConnection.@operations;
function runNext() {
operations.@shift();
if (operations.length)
operations[0]();
};
return new @Promise(function (resolve, reject) {
operations.@push(function() {
operation().@then(resolve, reject).@then(runNext, runNext);
});
if (operations.length == 1)
operations[0]();
});
}
function objectAndCallbacksOverload(args, functionName, objectInfo, promiseMode, legacyMode)
{
"use strict";
let argsCount = args.length;
let objectArg = args[0];
let objectArgOk = false;
if (!argsCount) {
if (!objectInfo.defaultsToNull)
return @Promise.@reject(new @TypeError("Not enough arguments"));
objectArg = null;
objectArgOk = true;
argsCount = 1;
} else {
const hasMatchingType = objectArg instanceof objectInfo.constructor;
if (hasMatchingType)
objectArgOk = true;
else if (objectInfo.defaultsToNull)
objectArgOk = objectArg === null || typeof objectArg === "undefined";
else if (objectInfo.maybeDictionary) {
try {
objectArg = new objectInfo.constructor(objectArg);
objectArgOk = true;
} catch (e) {
objectArgOk = false;
}
}
}
if (!objectArgOk)
return @Promise.@reject(new @TypeError(`Argument 1 ('${objectInfo.argName}') to RTCPeerConnection.${functionName} must be an instance of ${objectInfo.argType}`));
if (argsCount === 1)
return promiseMode(objectArg);
// More than one argument: Legacy mode
if (argsCount < 3)
return @Promise.@reject(new @TypeError("Not enough arguments"));
const successCallback = args[1];
const errorCallback = args[2];
if (typeof successCallback !== "function")
return @Promise.@reject(new @TypeError(`Argument 2 ('successCallback') to RTCPeerConnection.${functionName} must be a function`));
if (typeof errorCallback !== "function")
return @Promise.@reject(new @TypeError(`Argument 3 ('errorCallback') to RTCPeerConnection.${functionName} must be a function`));
return legacyMode(objectArg, successCallback, errorCallback);
}
function callbacksAndDictionaryOverload(args, functionName, promiseMode, legacyMode)
{
"use strict";
if (args.length <= 1) {
// Zero or one arguments: Promise mode
const options = args[0];
if (args.length && !@isDictionary(options))
return @Promise.@reject(new @TypeError(`Argument 1 ('options') to RTCPeerConnection.${functionName} must be a dictionary`));
return promiseMode(options);
}
// More than one argument: Legacy mode
const successCallback = args[0];
const errorCallback = args[1];
const options = args[2];
if (typeof successCallback !== "function")
return @Promise.@reject(new @TypeError(`Argument 1 ('successCallback') to RTCPeerConnection.${functionName} must be a function`));
if (typeof errorCallback !== "function")
return @Promise.@reject(new @TypeError(`Argument 2 ('errorCallback') to RTCPeerConnection.${functionName} must be a function`));
if (args.length > 2 && !@isDictionary(options))
return @Promise.@reject(new @TypeError(`Argument 3 ('options') to RTCPeerConnection.${functionName} must be a dictionary`));
return legacyMode(successCallback, errorCallback, args[2]);
}
function isRTCPeerConnection(connection)
{
"use strict";
return @isObject(connection) && !!connection.@operations;
}
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