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dabd327027
These changes allow us to asynchronously load pre-loaded stylesheets, in a way that's similar to ChromeUtils.compileScript. The new method returns a Promise which resolves to the preloaded sheet once it's finished loading. This will allow us to remove the last remaining use of synchronous channels in moz-extension: URLs. MozReview-Commit-ID: 7J52ff93YKT --HG-- extra : rebase_source : 20fa013cdc7f5fbedb5ce671ede17765a2abbac2
72 lines
2.6 KiB
Plaintext
72 lines
2.6 KiB
Plaintext
/* -*- Mode: IDL; 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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/* interface for managing user and user-agent style sheets */
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#include "nsISupports.idl"
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interface nsIPreloadedStyleSheet;
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interface nsIURI;
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/*
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* nsIStyleSheetService allows extensions or embeddors to add to the
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* built-in list of user or agent style sheets.
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*/
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[scriptable, uuid(4de68896-e8eb-41de-8237-a797b570ac4a)]
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interface nsIStyleSheetService : nsISupports
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{
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const unsigned long AGENT_SHEET = 0;
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const unsigned long USER_SHEET = 1;
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const unsigned long AUTHOR_SHEET = 2;
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/**
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* Synchronously loads a style sheet from |sheetURI| and adds it to the list
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* of user or agent style sheets.
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*
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* A user sheet loaded via this API will come before userContent.css and
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* userChrome.css in the cascade (so the rules in it will have lower
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* precedence than rules in those sheets).
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*
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* An agent sheet loaded via this API will come after ua.css in the cascade
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* (so the rules in it will have higher precedence than rules in ua.css).
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*
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* The relative ordering of two user or two agent sheets loaded via
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* this API is undefined.
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*
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* Sheets added via this API take effect on all documents, including
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* already-loaded ones, immediately.
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*/
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void loadAndRegisterSheet(in nsIURI sheetURI, in unsigned long type);
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/**
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* Returns true if a style sheet at |sheetURI| has previously been
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* added to the list of style sheets specified by |type|.
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*/
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boolean sheetRegistered(in nsIURI sheetURI, in unsigned long type);
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/**
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* Synchronously loads a style sheet from |sheetURI| and returns the
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* new style sheet object. Can be used with nsIDOMWindowUtils.addSheet.
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*/
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nsIPreloadedStyleSheet preloadSheet(in nsIURI sheetURI,
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in unsigned long type);
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/**
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* Asynchronously loads a style sheet from |sheetURI| and returns a Promise
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* which resolves to the new style sheet object, which can be used with
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* nsIDOMWindowUtils.addSheet, when it has completed loading.
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*/
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[implicit_jscontext]
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jsval preloadSheetAsync(in nsIURI sheetURI, in unsigned long type);
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/**
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* Remove the style sheet at |sheetURI| from the list of style sheets
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* specified by |type|. The removal takes effect immediately, even for
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* already-loaded documents.
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*/
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void unregisterSheet(in nsIURI sheetURI, in unsigned long type);
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};
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