66 lines
2.2 KiB
C++
66 lines
2.2 KiB
C++
// Copyright (c) 2008 The Chromium Embedded Framework Authors.
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// Portions copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef _JSCONTAINER_H
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#define _JSCONTAINER_H
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#include "../include/cef.h"
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#include "third_party/npapi/bindings/npruntime.h"
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class WebFrame;
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// CefJSContainer lets you map Javascript method calls and property accesses
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// directly to C++ method calls and CefVariant* variable access.
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// Portions of the implementation are borrowed from
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// webkit\glue\cpp_bound_class.cc
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class CefJSContainer : public CefThreadSafeBase<CefBase>
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{
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public:
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CefJSContainer(CefBrowser* browser,
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CefRefPtr<CefJSHandler> handler);
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~CefJSContainer();
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// Given a WebFrame, BindToJavascript builds the NPObject that will represent
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// the class and binds it to the frame's window under the given name. This
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// should generally be called from the WebView delegate's
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// WindowObjectCleared(). A class so bound will be accessible to JavaScript
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// as window.<classname>. The owner of the CefJSContainer is responsible for
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// keeping the object around while the frame is alive, and for destroying it
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// afterwards.
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void BindToJavascript(WebFrame* frame,
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const std::wstring& classname);
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CefRefPtr<CefJSHandler> GetHandler() { return handler_; }
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protected:
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bool HasMethod(NPIdentifier ident);
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bool HasProperty(NPIdentifier ident);
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bool Invoke(NPIdentifier ident,
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WebFrame* frame,
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const NPVariant* args,
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size_t arg_count,
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NPVariant* result);
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bool GetProperty(NPIdentifier ident,
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WebFrame* frame,
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NPVariant* result);
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bool SetProperty(NPIdentifier ident,
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WebFrame* frame,
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const NPVariant* value);
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friend struct CefNPObject;
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protected:
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CefBrowser* browser_;
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CefRefPtr<CefJSHandler> handler_;
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// A list of all NPObjects we created and bound in BindToJavascript(), so we
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// can clean them up when we're destroyed.
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typedef std::vector<NPObject*> BoundObjectList;
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BoundObjectList bound_objects_;
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};
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#endif // _JSHANDLER_CONTAINER_H
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