/* -*- Mode: C++; 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/. */

#include "nsISupports.idl"

%{C++
namespace mozilla {
class CSSStyleSheet;
} // namespace mozilla
%}

[ptr] native CSSStyleSheet(mozilla::CSSStyleSheet);

[scriptable, uuid(4805e682-49b9-11d3-9ce4-ed60bd6cb5bc)]

interface nsIEditorStyleSheets : nsISupports
{
  /** Load and apply the style sheet, specified by aURL, to the
    * editor's document, replacing the last style sheet added (if any).
    * This is always asynchronous, and may cause network I/O.
    * 
    * @param aURL The style sheet to be loaded and applied.
    */
  void replaceStyleSheet(in AString aURL);

  /** Add the given style sheet to the editor's document,
    * on top of any that are already there.
    * This is always asynchronous, and may cause network I/O.
    *
    * @param aURL The style sheet to be loaded and applied.
    */
  void addStyleSheet(in AString aURL);

  /** Load and apply the override style sheet, specified by aURL, to the
    * editor's document, replacing the last override style sheet added (if any).
    * This is always synchronous, so aURL should be a local file with only
    * local @imports. This action is not undoable. It is not intended for
    * "user" style sheets, only for editor developers to add sheets to change
    * display behavior for editing (like showing special cursors) that will
    * not be affected by loading "document" style sheets with addStyleSheet or
    * especially replaceStyleSheet.
    * 
    * @param aURL The style sheet to be loaded and applied.
    */
  void replaceOverrideStyleSheet(in AString aURL);

  /** Load and apply an override style sheet, specified by aURL, to
    * the editor's document, on top of any that are already there.
    * This is always synchronous, so the same caveats about local files and no
    * non-local @import as replaceOverrideStyleSheet apply here, too.
    *
    * @param aURL The style sheet to be loaded and applied.
    */
  void addOverrideStyleSheet(in AString aURL);

  /** Remove the given style sheet from the editor's document
    * This is always synchronous
    *
    * @param aURL The style sheet to be removed
    */
  void removeStyleSheet(in AString aURL);

  /** Remove the given override style sheet from the editor's document
    * This is always synchronous
    *
    * @param aURL The style sheet to be removed.
    */
  void removeOverrideStyleSheet(in AString aURL);

  /** Enable or disable the given style sheet from the editor's document
    * This is always synchronous
    *
    * @param aURL  The style sheet to be enabled or disabled
    * @param aEnable true to enable, or false to disable the style sheet
    */
  void enableStyleSheet(in AString aURL, in boolean aEnable);

  /** Get the CSSStyleSheet associated with the given URL.
    *
    * @param aURL         The style sheet's URL
    * @return             the style sheet
    */
  [noscript] CSSStyleSheet getStyleSheetForURL(in AString aURL);

  /** Get the URL associated with the given CSSStyleSheet.
    *
    * @param aStyleSheet  The style sheet
    * @return             the style sheet's URL
    */
  [noscript] AString getURLForStyleSheet(in CSSStyleSheet aStyleSheet);
};
