Devtools: Switch JS execution context to match inspected node

third_party/WebKit/Source/devtools/front_end/components/ExecutionContextModel.js

Index: third_party/WebKit/Source/devtools/front_end/components/ExecutionContextModel.js
diff --git a/third_party/WebKit/Source/devtools/front_end/components/ExecutionContextModel.js b/third_party/WebKit/Source/devtools/front_end/components/ExecutionContextModel.js
index 95a55893fff06e4d96957ca16999fc01025d86f6..02583fd9f51bc7d5b51aa3d6978cd74b62de214f 100644
--- a/third_party/WebKit/Source/devtools/front_end/components/ExecutionContextModel.js
+++ b/third_party/WebKit/Source/devtools/front_end/components/ExecutionContextModel.js
@@ -152,6 +152,9 @@ WebInspector.ExecutionContextModel.prototype = {
     targetAdded: function(target)
     {
         target.runtimeModel.executionContexts().forEach(this._executionContextCreated, this);
+        var domModel = WebInspector.DOMModel.fromTarget(target);
+        if (domModel)
+            domModel.addEventListener(WebInspector.DOMModel.Events.NodeInspected, this._nodeInspected, this);

[pfeldman, 2016/02/04 00:18:53]

This code should move to the UI level in order to track manual node selection in
the elements panel.

[samli, 2016/02/05 19:43:16]

Done

     },
 
     /**
@@ -165,6 +168,35 @@ WebInspector.ExecutionContextModel.prototype = {
             if (executionContexts[i].target() === target)
                 this._executionContextDestroyed(executionContexts[i]);
         }
+        var domModel = WebInspector.DOMModel.fromTarget(target);
+        if (domModel)
+            domModel.removeEventListener(WebInspector.DOMModel.Events.NodeInspected, this._nodeInspected, this);
+    },
+
+    /**
+     * @param {!WebInspector.Event} event
+     */
+    _nodeInspected: function(event)
+    {
+        /**
+         * @param {?WebInspector.DOMNode} domNode
+         * @this {!WebInspector.ExecutionContextModel}
+         */
+        function updateExecutionContext(domNode)
+        {
+            if (!domNode)
+                return;
+            var executionContexts = this._optionByExecutionContext.keysArray();
+            for (var context of executionContexts) {
+                if (context.frameId == domNode.frameId() || (!domNode.frameId() && context.isMainWorldContext)) {
+                    WebInspector.context.setFlavor(WebInspector.ExecutionContext, context);
+                    return;
+                }
+            }
+        }
+
+        var deferredNode = /** @type {!WebInspector.DeferredDOMNode} */(event.data);
+        deferredNode.resolvePromise().then(updateExecutionContext.bind(this));
     },
 
     /**