1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef CHROME_BROWSER_SYNC_JS_EVENT_ROUTER_H_ 6 #define CHROME_BROWSER_SYNC_JS_EVENT_ROUTER_H_ 7 #pragma once 8 9 // See README.js for design comments. 10 11 #include <string> 12 13 namespace browser_sync { 14 15 class JsArgList; 16 class JsEventHandler; 17 18 // An interface for objects that don't directly handle Javascript 19 // events but can pass them to JsEventHandlers or route them to other 20 // JsEventRouters. 21 class JsEventRouter { 22 public: 23 // If |target| is NULL that means the event is intended for every 24 // handler. Otherwise the event is meant for the given target only. 25 // |target| is const because it shouldn't be used except by the 26 // router that directly knows about it (which can then safely cast 27 // away the constness). 28 virtual void RouteJsEvent(const std::string& name, const JsArgList& args, 29 const JsEventHandler* target) = 0; 30 31 protected: ~JsEventRouter()32 virtual ~JsEventRouter() {} 33 }; 34 35 } // namespace browser_sync 36 37 #endif // CHROME_BROWSER_SYNC_JS_EVENT_ROUTER_H_ 38