webkitgtk-2.16.5HEADwebkitgtk-2.16.5master

1 files changed, 140 insertions, 0 deletions

diff --git a/Source/WebInspectorUI/UserInterface/Proxies/HeapSnapshotWorkerProxy.js b/Source/WebInspectorUI/UserInterface/Proxies/HeapSnapshotWorkerProxy.js
new file mode 100644
index 000000000..c47993c5e
--- /dev/null
+++ b/Source/WebInspectorUI/UserInterface/Proxies/HeapSnapshotWorkerProxy.js
@@ -0,0 +1,140 @@
+/*
+ * 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.HeapSnapshotWorkerProxy = class HeapSnapshotWorkerProxy extends WebInspector.Object
+{
+    constructor()
+    {
+        super();
+
+        this._heapSnapshotWorker = new Worker("Workers/HeapSnapshot/HeapSnapshotWorker.js");
+        this._heapSnapshotWorker.addEventListener("message", this._handleMessage.bind(this));
+
+        this._nextCallId = 1;
+        this._callbacks = new Map;
+
+        WebInspector.Frame.addEventListener(WebInspector.Frame.Event.MainResourceDidChange, this._mainResourceDidChange, this);
+    }
+
+    // Static
+
+    static singleton()
+    {
+        if (!HeapSnapshotWorkerProxy.instance)
+            HeapSnapshotWorkerProxy.instance = new HeapSnapshotWorkerProxy;
+        return HeapSnapshotWorkerProxy.instance;
+    }
+
+    // Actions
+
+    clearSnapshots(callback)
+    {
+        this.performAction("clearSnapshots", callback);
+    }
+
+    createSnapshot(snapshotStringData, callback)
+    {
+        this.performAction("createSnapshot", ...arguments);
+    }
+
+    createSnapshotDiff(objectId1, objectId2, callback)
+    {
+        this.performAction("createSnapshotDiff", ...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});
+    }
+
+    callMethod(objectId, methodName)
+    {
+        let callId = this._nextCallId++;
+        let callback = arguments[arguments.length - 1];
+        let methodArguments = Array.prototype.slice.call(arguments, 2, arguments.length - 1);
+
+        console.assert(typeof objectId === "number", "callMethod should always have an objectId");
+        console.assert(typeof methodName === "string", "callMethod should always have a methodName");
+        console.assert(typeof callback === "function", "callMethod should always have a callback");
+
+        this._callbacks.set(callId, callback);
+        this._postMessage({callId, objectId, methodName, methodArguments});
+    }
+
+    // Private
+
+    _mainResourceDidChange(event)
+    {
+        if (!event.target.isMainFrame())
+            return;
+
+        this.clearSnapshots(() => {
+            WebInspector.HeapSnapshotProxy.invalidateSnapshotProxies();
+        });
+    }
+
+    _postMessage()
+    {
+        this._heapSnapshotWorker.postMessage(...arguments);
+    }
+
+    _handleMessage(event)
+    {
+        let data = event.data;
+
+        // Error.
+        if (data.error) {
+            console.assert(data.callId);
+            this._callbacks.delete(data.callId);
+            return;
+        }
+
+        // Event.
+        if (data.eventName) {
+            this.dispatchEventToListeners(data.eventName, data.eventData);
+            return;
+        }
+
+        // Action or Method Response.
+        if (data.callId) {
+            let callback = this._callbacks.get(data.callId);
+            this._callbacks.delete(data.callId);
+            callback(data.result);
+            return;
+        }
+
+        console.error("Unexpected HeapSnapshotWorker message", data);
+    }
+};