chrome/browser/sync/js_event_router.h

   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 JsEventDetails;
  17 class JsEventHandler;
  18
  19 // An interface for objects that don't directly handle Javascript
  20 // events but can pass them to JsEventHandlers or route them to other
  21 // JsEventRouters.
  22 class JsEventRouter {
  23  public:
  24   virtual void RouteJsEvent(
  25       const std::string& name, const JsEventDetails& details) = 0;
  26
  27   // |target| is const because it shouldn't be used except by the
  28   // router that directly knows about it (which can then safely cast
  29   // away the constness).
  30   virtual void RouteJsMessageReply(
  31       const std::string& name, const JsArgList& args,
  32       const JsEventHandler* target) = 0;
  33
  34  protected:
  35   virtual ~JsEventRouter() {}
  36 };
  37
  38 }  // namespace browser_sync
  39
  40 #endif  // CHROME_BROWSER_SYNC_JS_EVENT_ROUTER_H_