1 files changed, 91 insertions, 0 deletions
diff --git a/Source/WebInspectorUI/UserInterface/Proxies/FormatterWorkerProxy.js b/Source/WebInspectorUI/UserInterface/Proxies/FormatterWorkerProxy.js
new file mode 100644
index 000000000..96159fb87
--- /dev/null
+++ b/Source/WebInspectorUI/UserInterface/Proxies/FormatterWorkerProxy.js
@@ -0,0 +1,91 @@
+/*
+ * Copyright (C) 2016 Apple Inc. 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS 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 APPLE INC. OR ITS 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.
+ */
+
+WebInspector.FormatterWorkerProxy = class FormatterWorkerProxy extends WebInspector.Object
+{
+    constructor()
+    {
+        super();
+
+        this._formatterWorker = new Worker("Workers/Formatter/FormatterWorker.js");
+        this._formatterWorker.addEventListener("message", this._handleMessage.bind(this));
+
+        this._nextCallId = 1;
+        this._callbacks = new Map;
+    }
+
+    // Static
+
+    static singleton()
+    {
+        if (!FormatterWorkerProxy.instance)
+            FormatterWorkerProxy.instance = new FormatterWorkerProxy;
+        return FormatterWorkerProxy.instance;
+    }
+
+    // Actions
+
+    formatJavaScript(sourceText, isModule, indentString, includeSourceMapData)
+    {
+        this.performAction("formatJavaScript", ...arguments);
+    }
+
+    // Public
+
+    performAction(actionName)
+    {
+        let callId = this._nextCallId++;
+        let callback = arguments[arguments.length - 1];
+        let actionArguments = Array.prototype.slice.call(arguments, 1, arguments.length - 1);
+
+        console.assert(typeof actionName === "string", "performAction should always have an actionName");
+        console.assert(typeof callback === "function", "performAction should always have a callback");
+
+        this._callbacks.set(callId, callback);
+        this._postMessage({callId, actionName, actionArguments});
+    }
+
+    // Private
+
+    _postMessage()
+    {
+        this._formatterWorker.postMessage(...arguments);
+    }
+
+    _handleMessage(event)
+    {
+        let data = event.data;
+
+        // Action response.
+        if (data.callId) {
+            let callback = this._callbacks.get(data.callId);
+            this._callbacks.delete(data.callId);
+            callback(data.result);
+            return;
+        }
+
+        console.error("Unexpected FormatterWorker message", data);
+    }
+};