gecko-dev/layout/style/nsICSSLoader.h

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: NPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Netscape Public License
* Version 1.1 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
* http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1999
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
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* ***** END LICENSE BLOCK ***** */
#ifndef nsICSSLoader_h___
#define nsICSSLoader_h___
#include "nsISupports.h"
#include "nsAReadableString.h"
#include "nsICSSImportRule.h"
class nsIAtom;
class nsString;
class nsIURI;
class nsICSSParser;
class nsICSSStyleSheet;
class nsIPresContext;
class nsIContent;
class nsIParser;
class nsIDocument;
class nsIUnicharInputStream;
class nsICSSLoaderObserver;
// IID for the nsIStyleSheetLoader interface {a6cf9101-15b3-11d2-932e-00805f8add32}
#define NS_ICSS_LOADER_IID \
{0xa6cf9101, 0x15b3, 0x11d2, {0x93, 0x2e, 0x00, 0x80, 0x5f, 0x8a, 0xdd, 0x32}}
typedef void (*nsCSSLoaderCallbackFunc)(nsICSSStyleSheet* aSheet, void *aData, PRBool aDidNotify);
class nsICSSLoader : public nsISupports {
public:
static const nsIID& GetIID() { static nsIID iid = NS_ICSS_LOADER_IID; return iid; }
NS_IMETHOD Init(nsIDocument* aDocument) = 0;
NS_IMETHOD DropDocumentReference(void) = 0; // notification that doc is going away
NS_IMETHOD SetCaseSensitive(PRBool aCaseSensitive) = 0;
NS_IMETHOD SetQuirkMode(PRBool aQuirkMode) = 0;
NS_IMETHOD SetPreferredSheet(const nsAReadableString& aTitle) = 0;
// Get/Recycle a CSS parser for general use
NS_IMETHOD GetParserFor(nsICSSStyleSheet* aSheet,
nsICSSParser** aParser) = 0;
NS_IMETHOD RecycleParser(nsICSSParser* aParser) = 0;
// Load an inline style sheet
// - if aCompleted is PR_TRUE, the sheet is fully loaded, don't
// block for it.
// - if aCompleted is PR_FALSE, the sheet is still loading and
// will be inserted in the document when complete
NS_IMETHOD LoadInlineStyle(nsIContent* aElement,
nsIUnicharInputStream* aIn,
const nsString& aTitle,
const nsString& aMedia,
PRInt32 aDefaultNameSpaceID,
PRInt32 aDocIndex,
nsIParser* aParserToUnblock,
PRBool& aCompleted,
nsICSSLoaderObserver* aObserver) = 0;
// Load a linked style sheet
// - if aCompleted is PR_TRUE, the sheet is fully loaded, don't
// block for it.
// - if aCompleted is PR_FALSE, the sheet is still loading and
// will be inserted in the document when complete
NS_IMETHOD LoadStyleLink(nsIContent* aElement,
nsIURI* aURL,
const nsString& aTitle,
const nsString& aMedia,
PRInt32 aDefaultNameSpaceID,
PRInt32 aDocIndex,
nsIParser* aParserToUnblock,
PRBool& aCompleted,
nsICSSLoaderObserver* aObserver) = 0;
// Load a child style sheet (@import)
NS_IMETHOD LoadChildSheet(nsICSSStyleSheet* aParentSheet,
nsIURI* aURL,
const nsString& aMedia,
PRInt32 aDefaultNameSpaceID,
PRInt32 aSheetIndex,
nsICSSImportRule* aRule) = 0;
// Load a user agent or user sheet immediately
// (note that @imports mayl come in asynchronously)
// - if aCompleted is PR_TRUE, the sheet is fully loaded
// - if aCompleted is PR_FALSE, the sheet is still loading and
// aCAllback will be called when the sheet is complete
NS_IMETHOD LoadAgentSheet(nsIURI* aURL,
nsICSSStyleSheet*& aSheet,
PRBool& aCompleted,
nsICSSLoaderObserver* aObserver) = 0;
// sets the out-param to the current charset, as set by SetCharset
NS_IMETHOD GetCharset(/*out*/nsAString &aCharsetDest) const = 0;
// SetCharset will ensure that the charset provided is the preferred charset
// if an empty string, then it is set to the default charset
NS_IMETHOD SetCharset(/*in*/ const nsAString &aCharsetSrc) = 0;
// stop loading all sheets
NS_IMETHOD Stop(void) = 0;
// stop loading one sheet
NS_IMETHOD StopLoadingSheet(nsIURI* aURL) = 0;
};
extern NS_EXPORT nsresult
NS_NewCSSLoader(nsIDocument* aDocument, nsICSSLoader** aLoader);
extern NS_EXPORT nsresult
NS_NewCSSLoader(nsICSSLoader** aLoader);
#endif /* nsICSSLoader_h___ */