1 files changed, 145 insertions, 0 deletions
diff --git a/Source/WebCore/Modules/mediastream/RTCPeerConnectionInternals.js b/Source/WebCore/Modules/mediastream/RTCPeerConnectionInternals.js
new file mode 100644
index 000000000..498d4f886
--- /dev/null
+++ b/Source/WebCore/Modules/mediastream/RTCPeerConnectionInternals.js
@@ -0,0 +1,145 @@
+/*
+ * 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;
+}