Chrome浏览器中扒出来的一段js,后来搜索了一下出于Chromium 源码中
Chromium : http://git.chromium.org/gitweb/?p=external/WebKit_trimmed.git;a=blame;f=Source/WebCore/inspector/InjectedScriptSource.js;hb=b7b2869e21f268035cd69b3bda84120037da0727
可以看看，代码还是很不错的！
/*
* Copyright (C) 2007 Apple Inc. All rights reserved.
* Copyright (C) 2013 Google 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.
* 3. Neither the name of Apple Computer, Inc. ("Apple") 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 APPLE 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 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.
*/
/**
* @param {!InjectedScriptHostClass} InjectedScriptHost
* @param {!Window} inspectedWindow
* @param {number} injectedScriptId
*/
(function (InjectedScriptHost, inspectedWindow, injectedScriptId) {
/**
* Protect against Object overwritten by the user code.
* @suppress {duplicate}
*/
var Object = /** @type {function(new:Object, *=)} */ ({}.constructor);
/**
* @param {!Array.<T>} array
* @param {...} var_args
* @template T
*/
function push(array, var_args)
{
for (var i = 1; i < arguments.length; ++i)
array[array.length] = arguments[i];
}
/**
* @param {!Arguments.<T>} array
* @param {number=} index
* @return {!Array.<T>}
* @template T
*/
function slice(array, index)
{
var result = [];
for (var i = index || 0, j = 0; i < array.length; ++i, ++j)
result[j] = array[i];
return result;
}
/**
* @param {!Array.<T>} array1
* @param {!Array.<T>} array2
* @return {!Array.<T>}
* @template T
*/
function concat(array1, array2)
{
var result = [];
for (var i = 0; i < array1.length; ++i)
push(result, array1[i]);
for (var i = 0; i < array2.length; ++i)
push(result, array2[i]);
return result;
}
/**
* @param {*} obj
* @return {string}
* @suppress {uselessCode}
*/
function toString(obj)
{
// We don't use String(obj) because String could be overridden.
// Also the ("" + obj) expression may throw.
try {
return "" + obj;
} catch (e) {
var name = InjectedScriptHost.internalConstructorName(obj) || InjectedScriptHost.subtype(obj) || (typeof obj);
return "#<" + name + ">";
}
}
/**
* @param {*} obj
* @return {string}
*/
function toStringDescription(obj)
{
if (typeof obj === "number" && obj === 0 && 1 / obj < 0)
return "-0"; // Negative zero.
return toString(obj);
}
/**
* Please use this bind, not the one from Function.prototype
* @param {function(...)} func
* @param {?Object} thisObject
* @param {...} var_args
* @return {function(...)}
*/
function bind(func, thisObject, var_args)
{
var args = slice(arguments, 2);
/**
* @param {...} var_args
*/
function bound(var_args)
{
return InjectedScriptHost.callFunction(func, thisObject, concat(args, slice(arguments)));
}
bound.toString = function()
{
return "bound: " + toString(func);
};
return bound;
}
/**
* @param {T} obj
* @return {T}
* @template T
*/
function nullifyObjectProto(obj)
{
if (obj && typeof obj === "object")
obj.__proto__ = null;
return obj;
}
/**
* @param {*} obj
* @return {boolean}
*/
function isUInt32(obj)
{
return typeof obj === "number" && obj >>> 0 === obj && (obj > 0 || 1 / obj > 0);
}
/**
* FireBug's array detection.
* @param {*} obj
* @return {boolean}
*/
function isArrayLike(obj)
{
if (typeof obj !== "object")
return false;
try {
if (typeof obj.splice === "function")
return isUInt32(obj.length);
} catch (e) {
}
return false;
}
/**
* @param {number} a
* @param {number} b
* @return {number}
*/
function max(a, b)
{
return a > b ? a : b;
}
/**
* FIXME: Remove once ES6 is supported natively by JS compiler.
* @param {*} obj
* @return {boolean}
*/
function isSymbol(obj)
{
var type = typeof obj;
return (type === "symbol");
}
/**
* @constructor
*/
var InjectedScript = function()
{
/** @type {number} */
this._lastBoundObjectId = 1;
/** @type {!Object.<number, (!Object|symbol)>} */
this._idToWrappedObject = { __proto__: null };
/** @type {!Object.<number, string>} */
this._idToObjectGroupName = { __proto__: null };
/** @type {!Object.<string, !Array.<number>>} */
this._objectGroups = { __proto__: null };
/** @type {!Object.<string, !Object>} */
this._modules = { __proto__: null };
}
/**
* @type {!Object.<string, boolean>}
* @const
*/
InjectedScript.primitiveTypes = {
"undefined": true,
"boolean": true,
"number": true,
"string": true,
__proto__: null
}
InjectedScript.prototype = {
/**
* @param {*} object
* @return {boolean}
*/
isPrimitiveValue: function(object)
{
// FIXME(33716): typeof document.all is always 'undefined'.
return InjectedScript.primitiveTypes[typeof object] && !this._isHTMLAllCollection(object);
},
/**
* @param {*} object
* @param {string} groupName
* @param {boolean} canAccessInspectedWindow
* @param {boolean} generatePreview
* @return {!RuntimeAgent.RemoteObject}
*/
wrapObject: function(object, groupName, canAccessInspectedWindow, generatePreview)
{
if (canAccessInspectedWindow)
return this._wrapObject(object, groupName, false, generatePreview);
return this._fallbackWrapper(object);
},
/**
* @param {*} object
* @return {!RuntimeAgent.RemoteObject}
*/
_fallbackWrapper: function(object)
{
var result = { __proto__: null };
result.type = typeof object;
if (this.isPrimitiveValue(object))
result.value = object;
else
result.description = toString(object);
return /** @type {!RuntimeAgent.RemoteObject} */ (result);
},
/**
* @param {boolean} canAccessInspectedWindow
* @param {!Object} table
* @param {!Array.<string>|string|boolean} columns
* @return {!RuntimeAgent.RemoteObject}
*/
wrapTable: function(canAccessInspectedWindow, table, columns)
{
if (!canAccessInspectedWindow)
return this._fallbackWrapper(table);
var columnNames = null;
if (typeof columns === "string")
columns = [columns];
if (InjectedScriptHost.subtype(columns) === "array") {
columnNames = [];
for (var i = 0; i < columns.length; ++i)
columnNames[i] = toString(columns[i]);
}
return this._wrapObject(table, "console", false, true, columnNames, true);
},
/**
* @param {*} object
*/
inspectNode: function(object)
{
this._inspect(object);
},
/**
* @param {*} object
* @return {*}
*/
_inspect: function(object)
{
if (arguments.length === 0)
return;
var objectId = this._wrapObject(object, "");
var hints = { __proto__: null };
InjectedScriptHost.inspect(objectId, hints);
return object;
},
/**
* This method cannot throw.
* @param {*} object
* @param {string=} objectGroupName
* @param {boolean=} forceValueType
* @param {boolean=} generatePreview
* @param {?Array.<string>=} columnNames
* @param {boolean=} isTable
* @return {!RuntimeAgent.RemoteObject}
* @suppress {checkTypes}
*/
_wrapObject: function(object, objectGroupName, forceValueType, generatePreview, columnNames, isTable)
{
try {
return new InjectedScript.RemoteObject(object, objectGroupName, forceValueType, generatePreview, columnNames, isTable);
} catch (e) {
try {
var description = injectedScript._describe(e);
} catch (ex) {
var description = "<failed to convert exception to string>";
}
return new InjectedScript.RemoteObject(description);
}
},
/**
* @param {!Object|symbol} object
* @param {string=} objectGroupName
* @return {string}
*/
_bind: function(object, objectGroupName)
{
var id = this._lastBoundObjectId++;
this._idToWrappedObject[id] = object;
var objectId = "{\"injectedScriptId\":" + injectedScriptId + ",\"id\":" + id + "}";
if (objectGroupName) {
var group = this._objectGroups[objectGroupName];
if (!group) {
group = [];
this._objectGroups[objectGroupName] = group;
}
push(group, id);
this._idToObjectGroupName[id] = objectGroupName;
}
return objectId;
},
/**
* @param {string} objectId
* @return {!Object}
*/
_parseObjectId: function(objectId)
{
return nullifyObjectProto(/** @type {!Object} */ (InjectedScriptHost.eval("(" + objectId + ")")));
},
/**
* @param {string} objectGroupName
*/
releaseObjectGroup: function(objectGroupName)
{
if (objectGroupName === "console")
delete this._lastResult;
var group = this._objectGroups[objectGroupName];
if (!group)
return;
for (var i = 0; i < group.length; i++)
this._releaseObject(group[i]);
delete this._objectGroups[objectGroupName];
},
/**
* @param {string} objectId
*/
setLastEvaluationResult: function(objectId)
{
var parsedObjectId = this._parseObjectId(objectId);
var object = this._objectForId(parsedObjectId);
this._lastResult = object;
},
/**
* @param {string} methodName
* @param {string} args
* @return {*}
*/
dispatch: function(methodName, args)
{
var argsArray = /** @type {!Array.<*>} */ (InjectedScriptHost.eval("(" + args + ")"));
var result = InjectedScriptHost.callFunction(this[methodName], this, argsArray);
if (typeof result === "undefined") {
inspectedWindow.console.error("Web Inspector error: InjectedScript.%s returns undefined", methodName);
result = null;
}
return result;
},
/**
* @param {string} objectId
* @param {boolean} ownProperties
* @param {boolean} accessorPropertiesOnly
* @return {!Array.<!RuntimeAgent.PropertyDescriptor>|boolean}
*/
getProperties: function(objectId, ownProperties, accessorPropertiesOnly)
{
var parsedObjectId = this._parseObjectId(objectId);
var object = this._objectForId(parsedObjectId);
var objectGroupName = this._idToObjectGroupName[parsedObjectId.id];
if (!this._isDefined(object) || isSymbol(object))
return false;
object = /** @type {!Object} */ (object);
var descriptors = this._propertyDescriptors(object, ownProperties, accessorPropertiesOnly);
// Go over properties, wrap object values.
for (var i = 0; i < descriptors.length; ++i) {
var descriptor = descriptors[i];
if ("get" in descriptor)
descriptor.get = this._wrapObject(descriptor.get, objectGroupName);
if ("set" in descriptor)
descriptor.set = this._wrapObject(descriptor.set, objectGroupName);
if ("value" in descriptor)
descriptor.value = this._wrapObject(descriptor.value, objectGroupName);
if (!("configurable" in descriptor))
descriptor.configurable = false;
if (!("enumerable" in descriptor))
descriptor.enumerable = false;
if ("symbol" in descriptor)
descriptor.symbol = this._wrapObject(descriptor.symbol, objectGroupName);
}
return descriptors;
},
/**
* @param {string} objectId
* @return {!Array.<!Object>|boolean}
*/
getInternalProperties: function(objectId)
{
var parsedObjectId = this._parseObjectId(objectId);
var object = this._objectForId(parsedObjectId);
var objectGroupName = this._idToObjectGroupName[parsedObjectId.id];
if (!this._isDefined(object) || isSymbol(object))
return false;
object = /** @type {!Object} */ (object);
var descriptors = [];
var internalProperties = InjectedScriptHost.getInternalProperties(object);
if (internalProperties) {
for (var i = 0; i < internalProperties.length; i++) {
var property = internalProperties[i];
var descriptor = {
name: property.name,
value: this._wrapObject(property.value, objectGroupName),
__proto__: null
};
push(descriptors, descriptor);
}
}
return descriptors;
},
/**
* @param {string} functionId
* @return {!DebuggerAgent.FunctionDetails|string}
*/
getFunctionDetails: function(functionId)
{
var parsedFunctionId = this._parseObjectId(functionId);
var func = this._objectForId(parsedFunctionId);
if (typeof func !== "function")
return "Cannot resolve function by id.";
var details = nullifyObjectProto(/** @type {!DebuggerAgent.FunctionDetails} */ (InjectedScriptHost.functionDetails(func)));
if ("rawScopes" in details) {
var objectGroupName = this._idToObjectGroupName[parsedFunctionId.id];
var rawScopes = details["rawScopes"];
delete details["rawScopes"];
var scopes = [];
for (var i = 0; i < rawScopes.length; ++i)
scopes[i] = InjectedScript.CallFrameProxy._createScopeJson(rawScopes[i].type, rawScopes[i].object, objectGroupName);
details.scopeChain = scopes;
}
return details;
},
/**
* @param {string} objectId
* @return {!Array.<!Object>|string}
*/
getCollectionEntries: function(objectId)
{
var parsedObjectId = this._parseObjectId(objectId);
var object = this._objectForId(parsedObjectId);
if (!object || typeof object !== "object")
return "Could not find object with given id";
var entries = InjectedScriptHost.collectionEntries(object);
if (!entries)
return "Object with given id is not a collection";
var objectGroupName = this._idToObjectGroupName[parsedObjectId.id];
for (var i = 0; i < entries.length; ++i) {
var entry = nullifyObjectProto(entries[i]);
if ("key" in entry)
entry.key = this._wrapObject(entry.key, objectGroupName);
entry.value = this._wrapObject(entry.value, objectGroupName);
entries[i] = entry;
}
return entries;
},
/**
* @param {string} objectId
*/
releaseObject: function(objectId)
{
var parsedObjectId = this._parseObjectId(objectId);
this._releaseObject(parsedObjectId.id);
},
/**
* @param {number} id
*/
_releaseObject: function(id)
{
delete this._idToWrappedObject[id];
delete this._idToObjectGroupName[id];
},
/**
* @param {!Object} object
* @param {boolean=} ownProperties
* @param {boolean=} accessorPropertiesOnly
* @return {!Array.<!Object>}
*/
_propertyDescriptors: function(object, ownProperties, accessorPropertiesOnly)
{
var descriptors = [];
var propertyProcessed = { __proto__: null };
/**
* @param {?Object} o
* @param {!Array.<string|symbol>} properties
*/
function process(o, properties)
{
for (var i = 0; i < properties.length; ++i) {
var property = properties[i];
if (propertyProcessed[property])
continue;
var name = property;
if (isSymbol(property))
name = injectedScript._describe(property);
try {
propertyProcessed[property] = true;
var descriptor = nullifyObjectProto(InjectedScriptHost.suppressWarningsAndCallFunction(Object.getOwnPropertyDescriptor, Object, [o, property]));
if (descriptor) {
if (accessorPropertiesOnly && !("get" in descriptor || "set" in descriptor))
continue;
} else {
// Not all bindings provide proper descriptors. Fall back to the writable, configurable property.
if (accessorPropertiesOnly)
continue;
try {
descriptor = { name: name, value: o[property], writable: false, configurable: false, enumerable: false, __proto__: null };
if (o === object)
descriptor.isOwn = true;
push(descriptors, descriptor);
} catch (e) {
// Silent catch.
}
continue;
}
} catch (e) {
if (accessorPropertiesOnly)
continue;
var descriptor = { __proto__: null };
descriptor.value = e;
descriptor.wasThrown = true;
}
descriptor.name = name;
if (o === object)
descriptor.isOwn = true;
if (isSymbol(property))
descriptor.symbol = property;
push(descriptors, descriptor);
}
}
for (var o = object; this._isDefined(o); o = o.__proto__) {
// First call Object.keys() to enforce ordering of the property descriptors.
process(o, Object.keys(/** @type {!Object} */ (o)));
process(o, Object.getOwnPropertyNames(/** @type {!Object} */ (o)));
if (Object.getOwnPropertySymbols)
process(o, Object.getOwnPropertySymbols(/** @type {!Object} */ (o)));
if (ownProperties) {
if (object.__proto__ && !accessorPropertiesOnly)
push(descriptors, { name: "__proto__", value: object.__proto__, writable: true, configurable: true, enumerable: false, isOwn: true, __proto__: null });
break;
}
}
return descriptors;
},
/**
* @param {string} expression
* @param {string} objectGroup
* @param {boolean} injectCommandLineAPI
* @param {boolean} returnByValue
* @param {boolean} generatePreview
* @return {*}
*/
evaluate: function(expression, objectGroup, injectCommandLineAPI, returnByValue, generatePreview)
{
return this._evaluateAndWrap(null, expression, objectGroup, injectCommandLineAPI, returnByValue, generatePreview);
},
/**
* @param {string} objectId
* @param {string} expression
* @param {string} args
* @param {boolean} returnByValue
* @return {!Object|string}
*/
callFunctionOn: function(objectId, expression, args, returnByValue)
{
var parsedObjectId = this._parseObjectId(objectId);
var object = this._objectForId(parsedObjectId);
if (!this._isDefined(object))
return "Could not find object with given id";
if (args) {
var resolvedArgs = [];
var callArgs = /** @type {!Array.<!RuntimeAgent.CallArgument>} */ (InjectedScriptHost.eval(args));
for (var i = 0; i < callArgs.length; ++i) {
try {
resolvedArgs[i] = this._resolveCallArgument(callArgs[i]);
} catch (e) {
return toString(e);
}
}
}
try {
var objectGroup = this._idToObjectGroupName[parsedObjectId.id];
var func = InjectedScriptHost.eval("(" + expression + ")");
if (typeof func !== "function")
return "Given expression does not evaluate to a function";
return { wasThrown: false,
result: this._wrapObject(InjectedScriptHost.callFunction(func, object, resolvedArgs), objectGroup, returnByValue),
__proto__: null };
} catch (e) {
return this._createThrownValue(e, objectGroup, false);
}
},
/**
* Resolves a value from CallArgument description.
* @param {!RuntimeAgent.CallArgument} callArgumentJson
* @return {*} resolved value
* @throws {string} error message
*/
_resolveCallArgument: function(callArgumentJson)
{
callArgumentJson = nullifyObjectProto(callArgumentJson);
var objectId = callArgumentJson.objectId;
if (objectId) {
var parsedArgId = this._parseObjectId(objectId);
if (!parsedArgId || parsedArgId["injectedScriptId"] !== injectedScriptId)
throw "Arguments should belong to the same JavaScript world as the target object.";
var resolvedArg = this._objectForId(parsedArgId);
if (!this._isDefined(resolvedArg))
throw "Could not find object with given id";
return resolvedArg;
} else if ("value" in callArgumentJson) {
var value = callArgumentJson.value;
if (callArgumentJson.type === "number" && typeof value !== "number")
value = Number(value);
return value;
}
return undefined;
},
/**
* @param {?JavaScriptCallFrame} callFrame
* @param {string} expression
* @param {string} objectGroup
* @param {boolean} injectCommandLineAPI
* @param {boolean} returnByValue
* @param {boolean} generatePreview
* @param {!Array.<!Object>=} scopeChain
* @return {!Object}
*/
_evaluateAndWrap: function(callFrame, expression, objectGroup, injectCommandLineAPI, returnByValue, generatePreview, scopeChain)
{
var wrappedResult = this._evaluateOn(callFrame, objectGroup, expression, injectCommandLineAPI, scopeChain);
if (!wrappedResult.exceptionDetails) {
return { wasThrown: false,
result: this._wrapObject(wrappedResult.result, objectGroup, returnByValue, generatePreview),
__proto__: null };
}
return this._createThrownValue(wrappedResult.result, objectGroup, generatePreview, wrappedResult.exceptionDetails);
},
/**
* @param {*} value
* @param {string} objectGroup
* @param {boolean} generatePreview
* @param {!DebuggerAgent.ExceptionDetails=} exceptionDetails
* @return {!Object}
*/
_createThrownValue: function(value, objectGroup, generatePreview, exceptionDetails)
{
var remoteObject = this._wrapObject(value, objectGroup, false, generatePreview && InjectedScriptHost.subtype(value) !== "error");
if (!remoteObject.description){
try {
remoteObject.description = toStringDescription(value);
} catch (e) {}
}
return { wasThrown: true, result: remoteObject, exceptionDetails: exceptionDetails, __proto__: null };
},
/**
* @param {?JavaScriptCallFrame} callFrame
* @param {string} objectGroup
* @param {string} expression
* @param {boolean} injectCommandLineAPI
* @param {!Array.<!Object>=} scopeChain
* @return {*}
*/
_evaluateOn: function(callFrame, objectGroup, expression, injectCommandLineAPI, scopeChain)
{
// Only install command line api object for the time of evaluation.
// Surround the expression in with statements to inject our command line API so that
// the window object properties still take more precedent than our API functions.
var scopeExtensionForEval = (callFrame && injectCommandLineAPI) ? new CommandLineAPI(this._commandLineAPIImpl, callFrame) : undefined;
injectCommandLineAPI = !scopeExtensionForEval && !callFrame && injectCommandLineAPI && !("__commandLineAPI" in inspectedWindow);
var injectScopeChain = scopeChain && scopeChain.length && !("__scopeChainForEval" in inspectedWindow);
try {
var prefix = "";
var suffix = "";
if (injectCommandLineAPI) {
InjectedScriptHost.setNonEnumProperty(inspectedWindow, "__commandLineAPI", new CommandLineAPI(this._commandLineAPIImpl, callFrame));
prefix = "with (typeof __commandLineAPI !== 'undefined' ? __commandLineAPI : { __proto__: null }) {";
suffix = "}";
}
if (injectScopeChain) {
InjectedScriptHost.setNonEnumProperty(inspectedWindow, "__scopeChainForEval", scopeChain);
for (var i = 0; i < scopeChain.length; ++i) {
prefix = "with (typeof __scopeChainForEval !== 'undefined' ? __scopeChainForEval[" + i + "] : { __proto__: null }) {" + (suffix ? " " : "") + prefix;
if (suffix)
suffix += " }";
else
suffix = "}";
}
}
if (prefix)
expression = prefix + "\n" + expression + "\n" + suffix;
var wrappedResult = callFrame ? callFrame.evaluateWithExceptionDetails(expression, scopeExtensionForEval) : InjectedScriptHost.evaluateWithExceptionDetails(expression);
if (objectGroup === "console" && !wrappedResult.exceptionDetails)
this._lastResult = wrappedResult.result;
return wrappedResult;
} finally {
if (injectCommandLineAPI)
delete inspectedWindow["__commandLineAPI"];
if (injectScopeChain)
delete inspectedWindow["__scopeChainForEval"];
}
},
/**
* @param {?Object} callFrame
* @param {number} asyncOrdinal
* @return {!Array.<!InjectedScript.CallFrameProxy>|boolean}
*/
wrapCallFrames: function(callFrame, asyncOrdinal)
{
if (!callFrame)
return false;
var result = [];
var depth = 0;
do {
result[depth] = new InjectedScript.CallFrameProxy(depth, callFrame, asyncOrdinal);
callFrame = callFrame.caller;
++depth;
} while (callFrame);
return result;
},
/**
* @param {!JavaScriptCallFrame} topCallFrame
* @param {!Array.<!JavaScriptCallFrame>} asyncCallStacks
* @param {string} callFrameId
* @param {string} expression
* @param {string} objectGroup
* @param {boolean} injectCommandLineAPI
* @param {boolean} returnByValue
* @param {boolean} generatePreview
* @return {*}
*/
evaluateOnCallFrame: function(topCallFrame, asyncCallStacks, callFrameId, expression, objectGroup, injectCommandLineAPI, returnByValue, generatePreview)
{
var parsedCallFrameId = nullifyObjectProto(/** @type {!Object} */ (InjectedScriptHost.eval("(" + callFrameId + ")")));
var callFrame = this._callFrameForParsedId(topCallFrame, parsedCallFrameId, asyncCallStacks);
if (!callFrame)
return "Could not find call frame with given id";
if (parsedCallFrameId["asyncOrdinal"])
return this._evaluateAndWrap(null, expression, objectGroup, injectCommandLineAPI, returnByValue, generatePreview, callFrame.scopeChain);
return this._evaluateAndWrap(callFrame, expression, objectGroup, injectCommandLineAPI, returnByValue, generatePreview);
},
/**
* @param {!JavaScriptCallFrame} topCallFrame
* @param {string} callFrameId
* @return {*}
*/
restartFrame: function(topCallFrame, callFrameId)
{
var callFrame = this._callFrameForId(topCallFrame, callFrameId);
if (!callFrame)
return "Could not find call frame with given id";
var result = callFrame.restart();
if (result === false)
result = "Restart frame is not supported";
return result;
},
/**
* @param {!JavaScriptCallFrame} topCallFrame
* @param {string} callFrameId
* @return {*} a stepIn position array ready for protocol JSON or a string error
*/
getStepInPositions: function(topCallFrame, callFrameId)
{
var callFrame = this._callFrameForId(topCallFrame, callFrameId);
if (!callFrame)
return "Could not find call frame with given id";
var stepInPositionsUnpacked = JSON.parse(callFrame.stepInPositions);
if (typeof stepInPositionsUnpacked !== "object")
return "Step in positions not available";
return stepInPositionsUnpacked;
},
/**
* Either callFrameId or functionObjectId must be specified.
* @param {!JavaScriptCallFrame} topCallFrame
* @param {string|boolean} callFrameId or false
* @param {string|boolean} functionObjectId or false
* @param {number} scopeNumber
* @param {string} variableName
* @param {string} newValueJsonString RuntimeAgent.CallArgument structure serialized as string
* @return {string|undefined} undefined if success or an error message
*/
setVariableValue: function(topCallFrame, callFrameId, functionObjectId, scopeNumber, variableName, newValueJsonString)
{
try {
var newValueJson = /** @type {!RuntimeAgent.CallArgument} */ (InjectedScriptHost.eval("(" + newValueJsonString + ")"));
var resolvedValue = this._resolveCallArgument(newValueJson);
if (typeof callFrameId === "string") {
var callFrame = this._callFrameForId(topCallFrame, callFrameId);
if (!callFrame)
return "Could not find call frame with given id";
callFrame.setVariableValue(scopeNumber, variableName, resolvedValue)
} else {
var parsedFunctionId = this._parseObjectId(/** @type {string} */ (functionObjectId));
var func = this._objectForId(parsedFunctionId);
if (typeof func !== "function")
return "Could not resolve function by id";
InjectedScriptHost.setFunctionVariableValue(func, scopeNumber, variableName, resolvedValue);
}
} catch (e) {
return toString(e);
}
return undefined;
},
/**
* @param {!JavaScriptCallFrame} topCallFrame
* @param {string} callFrameId
* @return {?JavaScriptCallFrame}
*/
_callFrameForId: function(topCallFrame, callFrameId)
{
var parsedCallFrameId = nullifyObjectProto(/** @type {!Object} */ (InjectedScriptHost.eval("(" + callFrameId + ")")));
return this._callFrameForParsedId(topCallFrame, parsedCallFrameId, []);
},
/**
* @param {!JavaScriptCallFrame} topCallFrame
* @param {!Object} parsedCallFrameId
* @param {!Array.<!JavaScriptCallFrame>} asyncCallStacks
* @return {?JavaScriptCallFrame}
*/
_callFrameForParsedId: function(topCallFrame, parsedCallFrameId, asyncCallStacks)
{
var asyncOrdinal = parsedCallFrameId["asyncOrdinal"]; // 1-based index
if (asyncOrdinal)
topCallFrame = asyncCallStacks[asyncOrdinal - 1];
var ordinal = parsedCallFrameId["ordinal"];
var callFrame = topCallFrame;
while (--ordinal >= 0 && callFrame)
callFrame = callFrame.caller;
return callFrame;
},
/**
* @param {!Object} objectId
* @return {!Object|symbol}
*/
_objectForId: function(objectId)
{
return this._idToWrappedObject[objectId.id];
},
/**
* @param {string} objectId
* @return {!Object|symbol}
*/
findObjectById: function(objectId)
{
var parsedObjectId = this._parseObjectId(objectId);
return this._objectForId(parsedObjectId);
},
/**
* @param {string} objectId
* @return {?Node}
*/
nodeForObjectId: function(objectId)
{
var object = this.findObjectById(objectId);
if (!object || this._subtype(object) !== "node")
return null;
return /** @type {!Node} */ (object);
},
/**
* @param {string} name
* @return {!Object}
*/
module: function(name)
{
return this._modules[name];
},
/**
* @param {string} name
* @param {string} source
* @return {?Object}
*/
injectModule: function(name, source)
{
delete this._modules[name];
var moduleFunction = InjectedScriptHost.eval("(" + source + ")");
if (typeof moduleFunction !== "function") {
inspectedWindow.console.error("Web Inspector error: A function was expected for module %s evaluation", name);
return null;
}
var module = /** @type {!Object} */ (InjectedScriptHost.callFunction(moduleFunction, inspectedWindow, [InjectedScriptHost, inspectedWindow, injectedScriptId, this]));
this._modules[name] = module;
return module;
},
/**
* @param {*} object
* @return {boolean}
*/
_isDefined: function(object)
{
return !!object || this._isHTMLAllCollection(object);
},
/**
* @param {*} object
* @return {boolean}
*/
_isHTMLAllCollection: function(object)
{
// document.all is reported as undefined, but we still want to process it.
return (typeof object === "undefined") && InjectedScriptHost.isHTMLAllCollection(object);
},
/**
* @param {*} obj
* @return {?string}
*/
_subtype: function(obj)
{
if (obj === null)
return "null";
if (this.isPrimitiveValue(obj))
return null;
var subtype = InjectedScriptHost.subtype(obj);
// FIXME: Consider exposing "error" subtype via protocol.
if (subtype && subtype !== "error")
return subtype;
if (isArrayLike(obj))
return "array";
// If owning frame has navigated to somewhere else window properties will be undefined.
return null;
},
/**
* @param {*} obj
* @return {?string}
*/
_describe: function(obj)
{
if (this.isPrimitiveValue(obj))
return null;
var subtype = this._subtype(obj);
if (subtype === "regexp")
return toString(obj);
if (subtype === "date")
return toString(obj);
if (subtype === "node") {
var description = obj.nodeName.toLowerCase();
switch (obj.nodeType) {
case 1 /* Node.ELEMENT_NODE */:
description += obj.id ? "#" + obj.id : "";
var className = obj.className;
description += (className && typeof className === "string") ? "." + className.trim().replace(/\s+/g, ".") : "";
break;
case 10 /*Node.DOCUMENT_TYPE_NODE */:
description = "<!DOCTYPE " + description + ">";
break;
}
return description;
}
var className = InjectedScriptHost.internalConstructorName(obj);
if (subtype === "array") {
if (typeof obj.length === "number")
className += "[" + obj.length + "]";
return className;
}
// NodeList in JSC is a function, check for array prior to this.
if (typeof obj === "function")
return toString(obj);
if (isSymbol(obj)) {
try {
return /** @type {string} */ (InjectedScriptHost.callFunction(Symbol.prototype.toString, obj)) || "Symbol";
} catch (e) {
return "Symbol";
}
}
if (InjectedScriptHost.subtype(obj) === "error") {
try {
var message = obj.message;
if (message)
return className + ": " + message;
} catch(e) {
}
}
return className;
}
}
/**
* @type {!InjectedScript}
* @const
*/
var injectedScript = new InjectedScript();
/**
* @constructor
* @param {*} object
* @param {string=} objectGroupName
* @param {boolean=} forceValueType
* @param {boolean=} generatePreview
* @param {?Array.<string>=} columnNames
* @param {boolean=} isTable
* @param {boolean=} skipEntriesPreview
*/
InjectedScript.RemoteObject = function(object, objectGroupName, forceValueType, generatePreview, columnNames, isTable, skipEntriesPreview)
{
this.type = typeof object;
if (this.type === "undefined" && injectedScript._isHTMLAllCollection(object))
this.type = "object";
if (injectedScript.isPrimitiveValue(object) || object === null || forceValueType) {
// We don't send undefined values over JSON.
if (this.type !== "undefined")
this.value = object;
// Null object is object with 'null' subtype.
if (object === null)
this.subtype = "null";
// Provide user-friendly number values.
if (this.type === "number") {
this.description = toStringDescription(object);
// Override "value" property for values that can not be JSON-stringified.
switch (this.description) {
case "NaN":
case "Infinity":
case "-Infinity":
case "-0":
this.value = this.description;
break;
}
}
return;
}
object = /** @type {!Object} */ (object);
this.objectId = injectedScript._bind(object, objectGroupName);
var subtype = injectedScript._subtype(object);
if (subtype)
this.subtype = subtype;
var className = InjectedScriptHost.internalConstructorName(object);
if (className)
this.className = className;
this.description = injectedScript._describe(object);
if (generatePreview && this.type === "object")
this.preview = this._generatePreview(object, undefined, columnNames, isTable, skipEntriesPreview);
}
InjectedScript.RemoteObject.prototype = {
/**
* @return {!RuntimeAgent.ObjectPreview} preview
*/
_createEmptyPreview: function()
{
var preview = {
type: /** @type {!RuntimeAgent.ObjectPreviewType.<string>} */ (this.type),
description: this.description || toStringDescription(this.value),
lossless: true,
overflow: false,
properties: [],
__proto__: null
};
if (this.subtype)
preview.subtype = /** @type {!RuntimeAgent.ObjectPreviewSubtype.<string>} */ (this.subtype);
return preview;
},
/**
* @param {!Object} object
* @param {?Array.<string>=} firstLevelKeys
* @param {?Array.<string>=} secondLevelKeys
* @param {boolean=} isTable
* @param {boolean=} skipEntriesPreview
* @return {!RuntimeAgent.ObjectPreview} preview
*/
_generatePreview: function(object, firstLevelKeys, secondLevelKeys, isTable, skipEntriesPreview)
{
var preview = this._createEmptyPreview();
var firstLevelKeysCount = firstLevelKeys ? firstLevelKeys.length : 0;
var propertiesThreshold = {
properties: isTable ? 1000 : max(5, firstLevelKeysCount),
indexes: isTable ? 1000 : max(100, firstLevelKeysCount),
__proto__: null
};
try {
var descriptors = injectedScript._propertyDescriptors(object);
if (firstLevelKeys) {
var nameToDescriptors = { __proto__: null };
for (var i = 0; i < descriptors.length; ++i) {
var descriptor = descriptors[i];
nameToDescriptors["#" + descriptor.name] = descriptor;
}
descriptors = [];
for (var i = 0; i < firstLevelKeys.length; ++i)
descriptors[i] = nameToDescriptors["#" + firstLevelKeys[i]];
}
this._appendPropertyDescriptors(preview, descriptors, propertiesThreshold, secondLevelKeys, isTable);
if (propertiesThreshold.indexes < 0 || propertiesThreshold.properties < 0)
return preview;
// Add internal properties to preview.
var internalProperties = InjectedScriptHost.getInternalProperties(object) || [];
for (var i = 0; i < internalProperties.length; ++i) {
internalProperties[i] = nullifyObjectProto(internalProperties[i]);
internalProperties[i].enumerable = true;
}
this._appendPropertyDescriptors(preview, internalProperties, propertiesThreshold, secondLevelKeys, isTable);
if (this.subtype === "map" || this.subtype === "set")
this._appendEntriesPreview(object, preview, skipEntriesPreview);
} catch (e) {
preview.lossless = false;
}
return preview;
},
/**
* @param {!RuntimeAgent.ObjectPreview} preview
* @param {!Array.<!Object>} descriptors
* @param {!Object} propertiesThreshold
* @param {?Array.<string>=} secondLevelKeys
* @param {boolean=} isTable
*/
_appendPropertyDescriptors: function(preview, descriptors, propertiesThreshold, secondLevelKeys, isTable)
{
for (var i = 0; i < descriptors.length; ++i) {
if (propertiesThreshold.indexes < 0 || propertiesThreshold.properties < 0)
break;
var descriptor = descriptors[i];
if (!descriptor)
continue;
if (descriptor.wasThrown) {
preview.lossless = false;
continue;
}
if (!descriptor.enumerable && !descriptor.isOwn)
continue;
var name = descriptor.name;
if (name === "__proto__")
continue;
if (this.subtype === "array" && name === "length")
continue;
if (!("value" in descriptor)) {
preview.lossless = false;
this._appendPropertyPreview(preview, { name: name, type: "accessor", __proto__: null }, propertiesThreshold);
continue;
}
var value = descriptor.value;
if (value === null) {
this._appendPropertyPreview(preview, { name: name, type: "object", subtype: "null", value: "null", __proto__: null }, propertiesThreshold);
continue;
}
var type = typeof value;
if (!descriptor.enumerable && type === "function")
continue;
if (type === "undefined" && injectedScript._isHTMLAllCollection(value))
type = "object";
var maxLength = 100;
if (InjectedScript.primitiveTypes[type]) {
if (type === "string" && value.length > maxLength) {
value = this._abbreviateString(value, maxLength, true);
preview.lossless = false;
}
this._appendPropertyPreview(preview, { name: name, type: type, value: toStringDescription(value), __proto__: null }, propertiesThreshold);
continue;
}
var property = { name: name, type: type, __proto__: null };
var subtype = injectedScript._subtype(value);
if (subtype)
property.subtype = subtype;
if (secondLevelKeys === null || secondLevelKeys) {
var subPreview = this._generatePreview(value, secondLevelKeys || undefined, undefined, isTable);
property.valuePreview = subPreview;
if (!subPreview.lossless)
preview.lossless = false;
if (subPreview.overflow)
preview.overflow = true;
} else {
var description = "";
if (type !== "function")
description = this._abbreviateString(/** @type {string} */ (injectedScript._describe(value)), maxLength, subtype === "regexp");
property.value = description;
preview.lossless = false;
}
this._appendPropertyPreview(preview, property, propertiesThreshold);
}
},
/**
* @param {!RuntimeAgent.ObjectPreview} preview
* @param {!Object} property
* @param {!Object} propertiesThreshold
*/
_appendPropertyPreview: function(preview, property, propertiesThreshold)
{
if (toString(property.name >>> 0) === property.name)
propertiesThreshold.indexes--;
else
propertiesThreshold.properties--;
if (propertiesThreshold.indexes < 0 || propertiesThreshold.properties < 0) {
preview.overflow = true;
preview.lossless = false;
} else {
push(preview.properties, property);
}
},
/**
* @param {!Object} object
* @param {!RuntimeAgent.ObjectPreview} preview
* @param {boolean=} skipEntriesPreview
*/
_appendEntriesPreview: function(object, preview, skipEntriesPreview)
{
var entries = InjectedScriptHost.collectionEntries(object);
if (!entries)
return;
if (skipEntriesPreview) {
if (entries.length) {
preview.overflow = true;
preview.lossless = false;
}
return;
}
preview.entries = [];
var entriesThreshold = 5;
for (var i = 0; i < entries.length; ++i) {
if (preview.entries.length >= entriesThreshold) {
preview.overflow = true;
preview.lossless = false;
break;
}
var entry = nullifyObjectProto(entries[i]);
var previewEntry = {
value: generateValuePreview(entry.value),
__proto__: null
};
if ("key" in entry)
previewEntry.key = generateValuePreview(entry.key);
push(preview.entries, previewEntry);
}
/**
* @param {*} value
* @return {!RuntimeAgent.ObjectPreview}
*/
function generateValuePreview(value)
{
var remoteObject = new InjectedScript.RemoteObject(value, undefined, undefined, true, undefined, undefined, true);
var valuePreview = remoteObject.preview || remoteObject._createEmptyPreview();
if (remoteObject.objectId)
injectedScript.releaseObject(remoteObject.objectId);
if (!valuePreview.lossless)
preview.lossless = false;
return valuePreview;
}
},
/**
* @param {string} string
* @param {number} maxLength
* @param {boolean=} middle
* @return {string}
*/
_abbreviateString: function(string, maxLength, middle)
{
if (string.length <= maxLength)
return string;
if (middle) {
var leftHalf = maxLength >> 1;
var rightHalf = maxLength - leftHalf - 1;
return string.substr(0, leftHalf) + "\u2026" + string.substr(string.length - rightHalf, rightHalf);
}
return string.substr(0, maxLength) + "\u2026";
},
__proto__: null
}
/**
* @constructor
* @param {number} ordinal
* @param {!JavaScriptCallFrame} callFrame
* @param {number} asyncOrdinal
*/
InjectedScript.CallFrameProxy = function(ordinal, callFrame, asyncOrdinal)
{
this.callFrameId = "{\"ordinal\":" + ordinal + ",\"injectedScriptId\":" + injectedScriptId + (asyncOrdinal ? ",\"asyncOrdinal\":" + asyncOrdinal : "") + "}";
this.functionName = (callFrame.type === "function" ? callFrame.functionName : "");
this.location = { scriptId: toString(callFrame.sourceID), lineNumber: callFrame.line, columnNumber: callFrame.column, __proto__: null };
this.scopeChain = this._wrapScopeChain(callFrame);
this.this = injectedScript._wrapObject(callFrame.thisObject, "backtrace");
if (callFrame.isAtReturn)
this.returnValue = injectedScript._wrapObject(callFrame.returnValue, "backtrace");
}
InjectedScript.CallFrameProxy.prototype = {
/**
* @param {!JavaScriptCallFrame} callFrame
* @return {!Array.<!DebuggerAgent.Scope>}
*/
_wrapScopeChain: function(callFrame)
{
var scopeChain = callFrame.scopeChain;
var scopeChainProxy = [];
for (var i = 0; i < scopeChain.length; ++i)
scopeChainProxy[i] = InjectedScript.CallFrameProxy._createScopeJson(callFrame.scopeType(i), scopeChain[i], "backtrace");
return scopeChainProxy;
},
__proto__: null
}
/**
* @param {number} scopeTypeCode
* @param {*} scopeObject
* @param {string} groupId
* @return {!DebuggerAgent.Scope}
*/
InjectedScript.CallFrameProxy._createScopeJson = function(scopeTypeCode, scopeObject, groupId)
{
const GLOBAL_SCOPE = 0;
const LOCAL_SCOPE = 1;
const WITH_SCOPE = 2;
const CLOSURE_SCOPE = 3;
const CATCH_SCOPE = 4;
/** @type {!Object.<number, string>} */
var scopeTypeNames = { __proto__: null };
scopeTypeNames[GLOBAL_SCOPE] = "global";
scopeTypeNames[LOCAL_SCOPE] = "local";
scopeTypeNames[WITH_SCOPE] = "with";
scopeTypeNames[CLOSURE_SCOPE] = "closure";
scopeTypeNames[CATCH_SCOPE] = "catch";
return {
object: injectedScript._wrapObject(scopeObject, groupId),
type: /** @type {!DebuggerAgent.ScopeType} */ (scopeTypeNames[scopeTypeCode]),
__proto__: null
};
}
/**
* @constructor
* @param {!CommandLineAPIImpl} commandLineAPIImpl
* @param {?JavaScriptCallFrame} callFrame
*/
function CommandLineAPI(commandLineAPIImpl, callFrame)
{
/**
* @param {string} member
* @return {boolean}
*/
function inScopeVariables(member)
{
if (!callFrame)
return (member in inspectedWindow);
var scopeChain = callFrame.scopeChain;
for (var i = 0; i < scopeChain.length; ++i) {
if (member in scopeChain[i])
return true;
}
return false;
}
/**
* @param {string} name The name of the method for which a toString method should be generated.
* @return {function():string}
*/
function customToStringMethod(name)
{
return function()
{
var funcArgsSyntax = "";
try {
var funcSyntax = "" + commandLineAPIImpl[name];
funcSyntax = funcSyntax.replace(/\n/g, " ");
funcSyntax = funcSyntax.replace(/^function[^\(]*\(([^\)]*)\).*$/, "$1");
funcSyntax = funcSyntax.replace(/\s*,\s*/g, ", ");
funcSyntax = funcSyntax.replace(/\bopt_(\w+)\b/g, "[$1]");
funcArgsSyntax = funcSyntax.trim();
} catch (e) {
}
return "function " + name + "(" + funcArgsSyntax + ") { [Command Line API] }";
};
}
for (var i = 0; i < CommandLineAPI.members_.length; ++i) {
var member = CommandLineAPI.members_[i];
if (inScopeVariables(member))
continue;
this[member] = bind(commandLineAPIImpl[member], commandLineAPIImpl);
this[member].toString = customToStringMethod(member);
}
for (var i = 0; i < 5; ++i) {
var member = "$" + i;
if (inScopeVariables(member))
continue;
this.__defineGetter__("$" + i, bind(commandLineAPIImpl._inspectedObject, commandLineAPIImpl, i));
}
this.$_ = injectedScript._lastResult;
this.__proto__ = null;
}
// NOTE: Please keep the list of API methods below snchronized to that in WebInspector.RuntimeModel!
// NOTE: Argument names of these methods will be printed in the console, so use pretty names!
/**
* @type {!Array.<string>}
* @const
*/
CommandLineAPI.members_ = [
"$", "$$", "$x", "dir", "dirxml", "keys", "values", "profile", "profileEnd",
"monitorEvents", "unmonitorEvents", "inspect", "copy", "clear", "getEventListeners",
"debug", "undebug", "monitor", "unmonitor", "table"
];
/**
* @constructor
*/
function CommandLineAPIImpl()
{
}
CommandLineAPIImpl.prototype = {
/**
* @param {string} selector
* @param {!Node=} opt_startNode
* @return {*}
*/
$: function (selector, opt_startNode)
{
if (this._canQuerySelectorOnNode(opt_startNode))
return opt_startNode.querySelector(selector);
return inspectedWindow.document.querySelector(selector);
},
/**
* @param {string} selector
* @param {!Node=} opt_startNode
* @return {*}
*/
$$: function (selector, opt_startNode)
{
if (this._canQuerySelectorOnNode(opt_startNode))
return opt_startNode.querySelectorAll(selector);
return inspectedWindow.document.querySelectorAll(selector);
},
/**
* @param {!Node=} node
* @return {boolean}
*/
_canQuerySelectorOnNode: function(node)
{
return !!node && InjectedScriptHost.subtype(node) === "node" && (node.nodeType === Node.ELEMENT_NODE || node.nodeType === Node.DOCUMENT_NODE || node.nodeType === Node.DOCUMENT_FRAGMENT_NODE);
},
/**
* @param {string} xpath
* @param {!Node=} opt_startNode
* @return {*}
*/
$x: function(xpath, opt_startNode)
{
var doc = (opt_startNode && opt_startNode.ownerDocument) || inspectedWindow.document;
var result = doc.evaluate(xpath, opt_startNode || doc, null, XPathResult.ANY_TYPE, null);
switch (result.resultType) {
case XPathResult.NUMBER_TYPE:
return result.numberValue;
case XPathResult.STRING_TYPE:
return result.stringValue;
case XPathResult.BOOLEAN_TYPE:
return result.booleanValue;
default:
var nodes = [];
var node;
while (node = result.iterateNext())
push(nodes, node);
return nodes;
}
},
/**
* @return {*}
*/
dir: function(var_args)
{
return InjectedScriptHost.callFunction(inspectedWindow.console.dir, inspectedWindow.console, slice(arguments));
},
/**
* @return {*}
*/
dirxml: function(var_args)
{
return InjectedScriptHost.callFunction(inspectedWindow.console.dirxml, inspectedWindow.console, slice(arguments));
},
/**
* @return {!Array.<string>}
*/
keys: function(object)
{
return Object.keys(object);
},
/**
* @return {!Array.<*>}
*/
values: function(object)
{
var result = [];
for (var key in object)
push(result, object[key]);
return result;
},
/**
* @return {*}
*/
profile: function(opt_title)
{
return InjectedScriptHost.callFunction(inspectedWindow.console.profile, inspectedWindow.console, slice(arguments));
},
/**
* @return {*}
*/
profileEnd: function(opt_title)
{
return InjectedScriptHost.callFunction(inspectedWindow.console.profileEnd, inspectedWindow.console, slice(arguments));
},
/**
* @param {!Object} object
* @param {!Array.<string>|string=} opt_types
*/
monitorEvents: function(object, opt_types)
{
if (!object || !object.addEventListener || !object.removeEventListener)
return;
var types = this._normalizeEventTypes(opt_types);
for (var i = 0; i < types.length; ++i) {
object.removeEventListener(types[i], this._logEvent, false);
object.addEventListener(types[i], this._logEvent, false);
}
},
/**
* @param {!Object} object
* @param {!Array.<string>|string=} opt_types
*/
unmonitorEvents: function(object, opt_types)
{
if (!object || !object.addEventListener || !object.removeEventListener)
return;
var types = this._normalizeEventTypes(opt_types);
for (var i = 0; i < types.length; ++i)
object.removeEventListener(types[i], this._logEvent, false);
},
/**
* @param {*} object
* @return {*}
*/
inspect: function(object)
{
return injectedScript._inspect(object);
},
copy: function(object)
{
var string;
if (injectedScript._subtype(object) === "node") {
string = object.outerHTML;
} else if (injectedScript.isPrimitiveValue(object)) {
string = toString(object);
} else {
try {
string = JSON.stringify(object, null, " ");
} catch (e) {
string = toString(object);
}
}
var hints = { copyToClipboard: true, __proto__: null };
var remoteObject = injectedScript._wrapObject(string, "")
InjectedScriptHost.inspect(remoteObject, hints);
},
clear: function()
{
InjectedScriptHost.clearConsoleMessages();
},
/**
* @param {!Node} node
* @return {!Array.<!{type: string, listener: function(), useCapture: boolean, remove: function()}>|undefined}
*/
getEventListeners: function(node)
{
var result = nullifyObjectProto(InjectedScriptHost.getEventListeners(node));
if (!result)
return result;
/** @this {{type: string, listener: function(), useCapture: boolean}} */
var removeFunc = function()
{
node.removeEventListener(this.type, this.listener, this.useCapture);
}
for (var type in result) {
var listeners = result[type];
for (var i = 0, listener; listener = listeners[i]; ++i) {
listener["type"] = type;
listener["remove"] = removeFunc;
}
}
return result;
},
debug: function(fn)
{
InjectedScriptHost.debugFunction(fn);
},
undebug: function(fn)
{
InjectedScriptHost.undebugFunction(fn);
},
monitor: function(fn)
{
InjectedScriptHost.monitorFunction(fn);
},
unmonitor: function(fn)
{
InjectedScriptHost.unmonitorFunction(fn);
},
table: function(data, opt_columns)
{
InjectedScriptHost.callFunction(inspectedWindow.console.table, inspectedWindow.console, slice(arguments));
},
/**
* @param {number} num
*/
_inspectedObject: function(num)
{
return InjectedScriptHost.inspectedObject(num);
},
/**
* @param {!Array.<string>|string=} types
* @return {!Array.<string>}
*/
_normalizeEventTypes: function(types)
{
if (typeof types === "undefined")
types = ["mouse", "key", "touch", "control", "load", "unload", "abort", "error", "select", "change", "submit", "reset", "focus", "blur", "resize", "scroll", "search", "devicemotion", "deviceorientation"];
else if (typeof types === "string")
types = [types];
var result = [];
for (var i = 0; i < types.length; ++i) {
if (types[i] === "mouse")
push(result, "mousedown", "mouseup", "click", "dblclick", "mousemove", "mouseover", "mouseout", "mousewheel");
else if (types[i] === "key")
push(result, "keydown", "keyup", "keypress", "textInput");
else if (types[i] === "touch")
push(result, "touchstart", "touchmove", "touchend", "touchcancel");
else if (types[i] === "control")
push(result, "resize", "scroll", "zoom", "focus", "blur", "select", "change", "submit", "reset");
else
push(result, types[i]);
}
return result;
},
/**
* @param {!Event} event
*/
_logEvent: function(event)
{
inspectedWindow.console.log(event.type, event);
}
}
injectedScript._commandLineAPIImpl = new CommandLineAPIImpl();
return injectedScript;
})
可以看看，代码还是很不错的！