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123 lines
4.5 KiB
C++
123 lines
4.5 KiB
C++
/* -*- Mode: C++; tab-width: 2; 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 mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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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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/*
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* interface representing a collection of style data attached to a
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* document, which may be or be combined into a style rule processor
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*/
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#ifndef nsIStyleSheet_h___
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#define nsIStyleSheet_h___
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#include <stdio.h>
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#include "nsISupports.h"
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class nsIAtom;
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class nsString;
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class nsIURI;
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class nsIStyleRule;
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class nsPresContext;
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class nsIContent;
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class nsIDocument;
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class nsIStyleRuleProcessor;
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// IID for the nsIStyleSheet interface
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// 7b2d31da-c3fb-4537-bd97-337272b83568
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#define NS_ISTYLE_SHEET_IID \
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{ 0x7b2d31da, 0xc3fb, 0x4537, \
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{ 0xbd, 0x97, 0x33, 0x72, 0x72, 0xb8, 0x35, 0x68 } }
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/**
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* A style sheet is a thing associated with a document that has style
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* rules. Those style rules can be reached in one of two ways, depending
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* on which level of the nsStyleSet it is in:
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* 1) It can be |QueryInterface|d to nsIStyleRuleProcessor
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* 2) It can be |QueryInterface|d to nsICSSStyleSheet, with which the
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* |nsStyleSet| uses an |nsCSSRuleProcessor| to access the rules.
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*/
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class nsIStyleSheet : public nsISupports {
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public:
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NS_DECLARE_STATIC_IID_ACCESSOR(NS_ISTYLE_SHEET_IID)
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// basic style sheet data
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NS_IMETHOD GetSheetURI(nsIURI** aSheetURI) const = 0;
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NS_IMETHOD GetBaseURI(nsIURI** aBaseURI) const = 0;
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NS_IMETHOD GetTitle(nsString& aTitle) const = 0;
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NS_IMETHOD GetType(nsString& aType) const = 0;
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NS_IMETHOD_(PRBool) UseForMedium(nsPresContext* aPresContext) const = 0;
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NS_IMETHOD_(PRBool) HasRules() const = 0;
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/**
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* Whether the sheet is applicable. A sheet that is not applicable
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* should never be inserted into a style set. A sheet may not be
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* applicable for a variety of reasons including being disabled and
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* being incomplete.
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*
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*/
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NS_IMETHOD GetApplicable(PRBool& aApplicable) const = 0;
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/**
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* Set the stylesheet to be enabled. This may or may not make it
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* applicable. Note that this WILL inform the sheet's document of
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* its new applicable state if the state changes but WILL NOT call
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* BeginUpdate() or EndUpdate() on the document -- calling those is
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* the caller's responsibility. This allows use of SetEnabled when
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* batched updates are desired. If you want updates handled for
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* you, see nsIDOMStyleSheet::SetDisabled().
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*/
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NS_IMETHOD SetEnabled(PRBool aEnabled) = 0;
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/**
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* Whether the sheet is complete.
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*/
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NS_IMETHOD GetComplete(PRBool& aComplete) const = 0;
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NS_IMETHOD SetComplete() = 0;
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// style sheet owner info
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NS_IMETHOD GetParentSheet(nsIStyleSheet*& aParent) const = 0; // may be null
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NS_IMETHOD GetOwningDocument(nsIDocument*& aDocument) const = 0; // may be null
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NS_IMETHOD SetOwningDocument(nsIDocument* aDocument) = 0;
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#ifdef DEBUG
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virtual void List(FILE* out = stdout, PRInt32 aIndent = 0) const = 0;
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#endif
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};
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NS_DEFINE_STATIC_IID_ACCESSOR(nsIStyleSheet, NS_ISTYLE_SHEET_IID)
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#endif /* nsIStyleSheet_h___ */
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