node-inspector/lib/FrontendCommandHandler.js at master · szpzs/node-inspector · GitHub

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var debugProtocol = require('debug')('node-inspector:protocol:devtools');

var RuntimeAgent = require('./RuntimeAgent').RuntimeAgent,

PageAgent = require('./PageAgent').PageAgent,

NetworkAgent = require('./NetworkAgent').NetworkAgent,

DebuggerAgent = require('./DebuggerAgent').DebuggerAgent;

/**

* @param {Object} config

* @param {FrontendClient} frontendClient

* @param {DebuggerClient} debuggerClient

* @param {BreakEventHandler} breakEventHandler

* @param {ScriptManager} scriptManager

* @param {InjectorClient} injectorClient

function FrontendCommandHandler(config,

frontendClient,

debuggerClient,

breakEventHandler,

scriptManager,

injectorClient) {

this._config = config;

this._agents = {};

this._specialCommands = {};

this._frontendClient = frontendClient;

this._debuggerClient = debuggerClient;

this._breakEventHandler = breakEventHandler;

this._scriptManager = scriptManager;

this._injectorClient = injectorClient;

this._initializeRegistry();

this._registerEventHandlers();

this._pauseInitialEvents();

}

FrontendCommandHandler.prototype = {

_initializeRegistry: function() {

this._registerAgent(

'Debugger',

new DebuggerAgent(

this._config,

this._frontendClient,

this._debuggerClient,

this._breakEventHandler,

this._scriptManager,

this._injectorClient)

);

this._registerAgent('Runtime', new RuntimeAgent(this._config, this._debuggerClient));

this._registerAgent(

'Page',

new PageAgent(

this._config,

this._debuggerClient,

this._scriptManager)

);

this._registerAgent('Network', new NetworkAgent());

this._registerNoopCommands(

'Network.enable',

'Console.enable',

'Console.clearMessages',

'Database.enable',

'DOMStorage.enable',

'DOM.hideHighlight',

'Inspector.enable',

'Page.clearDeviceOrientationOverride',

'Page.clearGeolocationOverride',

'Page.setContinuousPaintingEnabled',

'Page.setEmulatedMedia',

'Page.setDeviceMetricsOverride',

'Page.setShowDebugBorders',

'Page.setShowFPSCounter',

'Page.setShowScrollBottleneckRects',

'Page.setShowViewportSizeOnResize',

'Profiler.enable',

'CSS.enable'

);

this._registerQuery('CSS.getSupportedCSSProperties', { cssProperties: []});

this._registerQuery('Worker.canInspectWorkers', { result: false });

this._registerQuery('Page.getScriptExecutionStatus', { result: 'enabled' });

_registerAgent: function(name, agent) {

this._agents[name] = agent;

_registerNoopCommands: function() {

var i, fullMethodName;

for (i = 0; i < arguments.length; i++) {

fullMethodName = arguments[i];

this._specialCommands[fullMethodName] = {};

}

_registerQuery: function(fullMethodName, result) {

this._specialCommands[fullMethodName] = { result: result };

_registerEventHandlers: function() {

this._frontendClient.on(

'message',

this._handleFrontendMessage.bind(this));

_handleFrontendMessage: function(message) {

debugProtocol('frontend: ' + message);

var command = JSON.parse(message);

this.handleCommand(command);

_pauseInitialEvents: function() {

this._frontendClient.pauseEvents();

this._agents.Page.on('resource-tree', function() {

this._frontendClient.resumeEvents();

}.bind(this));

handleCommand: function(messageObject) {

var fullMethodName = messageObject.method,

domainAndMethod = fullMethodName.split('.'),

domainName = domainAndMethod[0],

methodName = domainAndMethod[1],

requestId = messageObject.id,

agent,

method;

if (this._specialCommands[fullMethodName]) {

this._handleMethodResult(

requestId,

fullMethodName,

null,

this._specialCommands[fullMethodName].result);

return;

}

agent = this._agents[domainName];

if (!agent) {

this._sendNotImplementedResponse(requestId, fullMethodName);

return;

}

method = agent[methodName];

if (!method || typeof method !== 'function') {

this._sendNotImplementedResponse(requestId, fullMethodName);

return;

}

method.call(agent, messageObject.params, function(error, result) {

this._handleMethodResult(messageObject.id, fullMethodName, error, result);

}.bind(this));

_sendNotImplementedResponse: function(requestId, fullMethodName) {

console.log(

'Received request for a method not implemented:',

fullMethodName

);

this._handleMethodResult(

requestId,

fullMethodName,

new Error('Not implemented.')

);

_handleMethodResult: function(requestId, fullMethodName, error, result) {

var response;

if (!requestId) {

if (response !== undefined)

console.log('Warning: discarded result of ' + fullMethodName);

return;

}

this._frontendClient.sendResponse(requestId, fullMethodName, error, result);

}

};

exports.FrontendCommandHandler = FrontendCommandHandler;

node-inspector/lib/FrontendCommandHandler.js at master · szpzs/node-inspector · GitHub

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