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112 lines
3.9 KiB
Plaintext
112 lines
3.9 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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%{C++
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/**
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* Calling QueryInterface with this special IID will return a null-terminated
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* table of QITableEntry's. Not all objects support this.
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* Note that this breaks XPCOM rules a bit (the table doesn't derive from
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* nsISupports).
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*/
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#define NS_THISPTROFFSETS_SID \
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{ 0x23e017cc, 0x5d6f, 0x430c, \
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{ 0xb3, 0xe6, 0x9d, 0x32, 0x65, 0x70, 0xd6, 0xb8 } }
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%}
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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(986c11d0-f340-11d4-9075-0010a4e73d9a)]
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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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* Get a language mapping specific helper object that may assist in using
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* objects of this class in a specific lanaguage. For instance, if asked
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* for the helper for nsIProgrammingLanguage::JAVASCRIPT this might return
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* an object that can be QI'd into the nsIXPCScriptable interface to assist
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* XPConnect in supplying JavaScript specific behavior to callers of the
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* instance object.
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*
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* see: nsIProgrammingLanguage.idl
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*
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* Should return null if no helper available for given language.
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*/
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nsISupports getHelperForLanguage(in uint32_t language);
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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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* Return language type from list in nsIProgrammingLanguage
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*/
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readonly attribute uint32_t implementationLanguage;
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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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