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88 lines
3.0 KiB
Plaintext
88 lines
3.0 KiB
Plaintext
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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*
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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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#include "nsISupports.idl"
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interface nsIXPCScriptable;
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/**
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* Provides information about a specific implementation class. If you want
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* your class to implement nsIClassInfo, see nsIClassInfoImpl.h for
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* instructions--you most likely do not want to inherit from nsIClassInfo.
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*/
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[scriptable, uuid(a60569d7-d401-4677-ba63-2aa5971af25d)]
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interface nsIClassInfo : nsISupports
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{
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/**
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* Get an ordered list of the interface ids that instances of the class
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* promise to implement. Note that nsISupports is an implicit member
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* of any such list and need not be included.
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*
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* Should set *count = 0 and *array = null and return NS_OK if getting the
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* list is not supported.
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*/
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void getInterfaces(out uint32_t count,
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[array, size_is(count), retval] out nsIIDPtr array);
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/**
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* Return an object to assist XPConnect in supplying JavaScript-specific
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* behavior to callers of the instance object, or null if not needed.
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*/
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nsIXPCScriptable getScriptableHelper();
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/**
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* A contract ID through which an instance of this class can be created
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* (or accessed as a service, if |flags & SINGLETON|), or null.
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*/
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readonly attribute string contractID;
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/**
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* A human readable string naming the class, or null.
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*/
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readonly attribute string classDescription;
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/**
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* A class ID through which an instance of this class can be created
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* (or accessed as a service, if |flags & SINGLETON|), or null.
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*/
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readonly attribute nsCIDPtr classID;
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/**
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* Bitflags for 'flags' attribute.
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*/
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const uint32_t SINGLETON = 1 << 0;
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const uint32_t THREADSAFE = 1 << 1;
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const uint32_t MAIN_THREAD_ONLY = 1 << 2;
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const uint32_t DOM_OBJECT = 1 << 3;
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const uint32_t PLUGIN_OBJECT = 1 << 4;
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const uint32_t SINGLETON_CLASSINFO = 1 << 5;
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/**
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* 'flags' attribute bitflag: whether objects of this type implement
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* nsIContent.
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*/
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const uint32_t CONTENT_NODE = 1 << 6;
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// The high order bit is RESERVED for consumers of these flags.
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// No implementor of this interface should ever return flags
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// with this bit set.
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const uint32_t RESERVED = 1 << 31;
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readonly attribute uint32_t flags;
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/**
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* Also a class ID through which an instance of this class can be created
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* (or accessed as a service, if |flags & SINGLETON|). If the class does
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* not have a CID, it should return NS_ERROR_NOT_AVAILABLE. This attribute
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* exists so C++ callers can avoid allocating and freeing a CID, as would
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* happen if they used classID.
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*/
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[noscript] readonly attribute nsCID classIDNoAlloc;
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};
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