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284 строки
10 KiB
Plaintext
284 строки
10 KiB
Plaintext
/* -*- Mode: IDL; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is the Mozilla browser.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications, Inc.
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* Portions created by the Initial Developer are Copyright (C) 1999
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Travis Bogard <travis@netscape.com>
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* Darin Fisher <darin@meer.net>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsISupports.idl"
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interface nsIDOMDocument;
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interface nsIInputStream;
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interface nsISHistory;
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interface nsIURI;
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/**
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* The nsIWebNavigation interface defines an interface for navigating the web.
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* It provides methods and attributes to direct an object to navigate to a new
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* location, stop or restart an in process load, or determine where the object
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* has previously gone.
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*
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* @status UNDER_REVIEW
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*/
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[scriptable, uuid(F5D9E7B0-D930-11d3-B057-00A024FFC08C)]
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interface nsIWebNavigation : nsISupports
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{
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/**
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* Indicates if the object can go back. If true this indicates that
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* there is back session history available for navigation.
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*/
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readonly attribute boolean canGoBack;
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/**
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* Indicates if the object can go forward. If true this indicates that
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* there is forward session history available for navigation
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*/
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readonly attribute boolean canGoForward;
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/**
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* Tells the object to navigate to the previous session history item. When a
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* page is loaded from session history, all content is loaded from the cache
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* (if available) and page state (such as form values and scroll position) is
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* restored.
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*
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* @throw NS_ERROR_UNEXPECTED
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* Indicates that the call was unexpected at this time, which implies
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* that canGoBack is false.
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*/
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void goBack();
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/**
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* Tells the object to navigate to the next session history item. When a
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* page is loaded from session history, all content is loaded from the cache
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* (if available) and page state (such as form values and scroll position) is
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* restored.
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*
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* @throw NS_ERROR_UNEXPECTED
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* Indicates that the call was unexpected at this time, which implies
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* that canGoForward is false.
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*/
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void goForward();
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/**
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* Tells the object to navigate to the session history item at a given index.
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*
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* @throw NS_ERROR_UNEXPECTED
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* Indicates that the call was unexpected at this time, which implies
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* that session history entry at the given index does not exist.
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*/
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void gotoIndex(in long index);
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/****************************************************************************
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* The following flags may be bitwise combined to form the load flags
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* parameter passed to either the loadURI or reload method. Some of these
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* flags are only applicable to loadURI.
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*/
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/**
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* This flags defines the range of bits that may be specified.
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*/
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const unsigned long LOAD_FLAGS_MASK = 0xffff;
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/**
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* This is the default value for the load flags parameter.
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*/
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const unsigned long LOAD_FLAGS_NONE = 0x0000;
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/**
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* This flag specifies that the load should have the semantics of an HTML
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* Meta-refresh tag (i.e., that the cache should be bypassed). This flag
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* is only applicable to loadURI.
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* XXX the meaning of this flag is poorly defined.
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* XXX no one uses this, so we should probably deprecate and remove it.
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*/
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const unsigned long LOAD_FLAGS_IS_REFRESH = 0x0010;
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/**
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* This flag specifies that the load should have the semantics of a link
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* click. This flag is only applicable to loadURI.
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* XXX the meaning of this flag is poorly defined.
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*/
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const unsigned long LOAD_FLAGS_IS_LINK = 0x0020;
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/**
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* This flag specifies that history should not be updated. This flag is only
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* applicable to loadURI.
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*/
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const unsigned long LOAD_FLAGS_BYPASS_HISTORY = 0x0040;
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/**
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* This flag specifies that any existing history entry should be replaced.
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* This flag is only applicable to loadURI.
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*/
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const unsigned long LOAD_FLAGS_REPLACE_HISTORY = 0x0080;
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/**
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* This flag specifies that the local web cache should be bypassed, but an
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* intermediate proxy cache could still be used to satisfy the load.
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*/
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const unsigned long LOAD_FLAGS_BYPASS_CACHE = 0x0100;
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/**
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* This flag specifies that any intermediate proxy caches should be bypassed
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* (i.e., that the content should be loaded from the origin server).
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*/
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const unsigned long LOAD_FLAGS_BYPASS_PROXY = 0x0200;
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/**
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* This flag specifies that a reload was triggered as a result of detecting
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* an incorrect character encoding while parsing a previously loaded
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* document.
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*/
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const unsigned long LOAD_FLAGS_CHARSET_CHANGE = 0x0400;
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/**
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* If this flag is set, Stop() will be called before the load starts
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* and will stop both content and network activity (the default is to
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* only stop network activity). Effectively, this passes the
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* STOP_CONTENT flag to Stop(), in addition to the STOP_NETWORK flag.
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*/
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const unsigned long LOAD_FLAGS_STOP_CONTENT = 0x0800;
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/**
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* A hint this load was prompted by an external program: take care!
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*/
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const unsigned long LOAD_FLAGS_FROM_EXTERNAL = 0x1000;
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/**
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* Loads a given URI. This will give priority to loading the requested URI
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* in the object implementing this interface. If it can't be loaded here
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* however, the URI dispatcher will go through its normal process of content
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* loading.
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*
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* @param aURI
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* The URI string to load. For HTTP and FTP URLs and possibly others,
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* characters above U+007F will be converted to UTF-8 and then URL-
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* escaped per the rules of RFC 2396.
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* @param aLoadFlags
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* Flags modifying load behaviour. This parameter is a bitwise
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* combination of the load flags defined above. (Undefined bits are
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* reserved for future use.) Generally you will pass LOAD_FLAGS_NONE
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* for this parameter.
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* @param aReferrer
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* The referring URI. If this argument is null, then the referring
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* URI will be inferred internally.
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* @param aPostData
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* If the URI corresponds to a HTTP request, then this stream is
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* appended directly to the HTTP request headers. It may be prefixed
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* with additional HTTP headers. This stream must contain a "\r\n"
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* sequence separating any HTTP headers from the HTTP request body.
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* This parameter is optional and may be null.
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* @param aHeaders
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* If the URI corresponds to a HTTP request, then any HTTP headers
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* contained in this stream are set on the HTTP request. The HTTP
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* header stream is formatted as:
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* ( HEADER "\r\n" )*
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* This parameter is optional and may be null.
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*/
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void loadURI(in wstring aURI,
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in unsigned long aLoadFlags,
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in nsIURI aReferrer,
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in nsIInputStream aPostData,
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in nsIInputStream aHeaders);
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/**
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* Tells the Object to reload the current page. There may be cases where the
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* user will be asked to confirm the reload (for example, when it is
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* determined that the request is non-idempotent).
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*
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* @param aReloadFlags
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* Flags modifying load behaviour. This parameter is a bitwise
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* combination of the Load Flags defined above. (Undefined bits are
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* reserved for future use.) Generally you will pass LOAD_FLAGS_NONE
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* for this parameter.
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*
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* @throw NS_BINDING_ABORTED
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* Indicating that the user canceled the reload.
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*/
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void reload(in unsigned long aReloadFlags);
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/****************************************************************************
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* The following flags may be passed as the stop flags parameter to the stop
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* method defined on this interface.
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*/
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/**
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* This flag specifies that all network activity should be stopped. This
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* includes both active network loads and pending META-refreshes.
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*/
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const unsigned long STOP_NETWORK = 0x01;
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/**
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* This flag specifies that all content activity should be stopped. This
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* includes animated images, plugins and pending Javascript timeouts.
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*/
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const unsigned long STOP_CONTENT = 0x02;
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/**
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* This flag specifies that all activity should be stopped.
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*/
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const unsigned long STOP_ALL = 0x03;
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/**
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* Stops a load of a URI.
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*
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* @param aStopFlags
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* This parameter is one of the stop flags defined above.
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*/
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void stop(in unsigned long aStopFlags);
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/**
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* Retrieves the current DOM document for the frame, or lazily creates a
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* blank document if there is none. This attribute never returns null except
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* for unexpected error situations.
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*/
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readonly attribute nsIDOMDocument document;
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/**
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* The currently loaded URI or null.
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*/
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readonly attribute nsIURI currentURI;
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/**
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* The referring URI for the currently loaded URI or null.
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*/
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readonly attribute nsIURI referringURI;
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/**
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* The session history object used by this web navigation instance.
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*/
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attribute nsISHistory sessionHistory;
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};
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