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/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/* interface for managing user and user-agent style sheets */
#include "nsISupports.idl"
interface nsIURI;
interface nsIDOMStyleSheet;
/*
* nsIStyleSheetService allows extensions or embeddors to add to the
* built-in list of user or agent style sheets.
*/
[scriptable, uuid(4de68896-e8eb-41de-8237-a797b570ac4a)]
interface nsIStyleSheetService : nsISupports
{
const unsigned long AGENT_SHEET = 0;
const unsigned long USER_SHEET = 1;
const unsigned long AUTHOR_SHEET = 2;
/**
* Synchronously loads a style sheet from |sheetURI| and adds it to the list
* of user or agent style sheets.
*
* A user sheet loaded via this API will come before userContent.css and
* userChrome.css in the cascade (so the rules in it will have lower
* precedence than rules in those sheets).
*
* An agent sheet loaded via this API will come after ua.css in the cascade
* (so the rules in it will have higher precedence than rules in ua.css).
*
* The relative ordering of two user or two agent sheets loaded via
* this API is undefined.
*
* Sheets added via this API take effect on all documents, including
* already-loaded ones, immediately.
*/
void loadAndRegisterSheet(in nsIURI sheetURI, in unsigned long type);
/**
* Returns true if a style sheet at |sheetURI| has previously been
* added to the list of style sheets specified by |type|.
*/
boolean sheetRegistered(in nsIURI sheetURI, in unsigned long type);
/**
* Synchronously loads a style sheet from |sheetURI| and returns the
* new style sheet object. Can be used with nsIDOMWindowUtils.addSheet.
*/
nsIDOMStyleSheet preloadSheet(in nsIURI sheetURI, in unsigned long type);
/**
* Remove the style sheet at |sheetURI| from the list of style sheets
* specified by |type|. The removal takes effect immediately, even for
* already-loaded documents.
*/
void unregisterSheet(in nsIURI sheetURI, in unsigned long type);
};
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