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65 lines
2.4 KiB
C++
65 lines
2.4 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef nsIScriptEventHandlerOwner_h__
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#define nsIScriptEventHandlerOwner_h__
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#include "nsISupports.h"
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#include "nsIScriptContext.h"
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#include "nsAString.h"
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template<class> class nsScriptObjectHolder;
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class nsIAtom;
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#define NS_ISCRIPTEVENTHANDLEROWNER_IID \
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{ 0xc8f35f71, 0x07d1, 0x4ff3, \
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{ 0xa3, 0x2f, 0x65, 0xcb, 0x35, 0x64, 0xac, 0xe0 } }
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/**
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* Associate a compiled event handler with its target object, which owns it
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* This is an adjunct to nsIScriptObjectOwner that nsEventListenerManager's
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* implementation queries for, in order to avoid recompiling a recurrent or
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* prototype-inherited event handler.
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*/
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class nsIScriptEventHandlerOwner : public nsISupports
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{
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public:
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NS_DECLARE_STATIC_IID_ACCESSOR(NS_ISCRIPTEVENTHANDLEROWNER_IID)
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/**
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* Compile the specified event handler. This does NOT bind it to
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* anything. That's the caller's responsibility.
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*
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* @param aContext the context to use when creating event handler
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* @param aName the name of the handler
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* @param aBody the handler script body
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* @param aURL the URL or filename for error messages
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* @param aLineNo the starting line number of the script for error messages
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* @param aHandler the holder for the compiled handler object
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*/
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virtual nsresult CompileEventHandler(nsIScriptContext* aContext,
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nsIAtom *aName,
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const nsAString& aBody,
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const char* aURL,
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PRUint32 aLineNo,
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nsScriptObjectHolder<JSObject>& aHandler) = 0;
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/**
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* Retrieve an already-compiled event handler that can be bound to a
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* target object using a script context.
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*
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* @param aName the name of the event handler to retrieve
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* @param aHandler the holder for the compiled event handler.
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*/
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virtual nsresult GetCompiledEventHandler(nsIAtom *aName,
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nsScriptObjectHolder<JSObject>& aHandler) = 0;
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};
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NS_DEFINE_STATIC_IID_ACCESSOR(nsIScriptEventHandlerOwner,
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NS_ISCRIPTEVENTHANDLEROWNER_IID)
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#endif // nsIScriptEventHandlerOwner_h__
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