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- /* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
- *
- * ***** BEGIN LICENSE BLOCK *****
- * Version: MPL 1.1/GPL 2.0/LGPL 2.1
- *
- * The contents of this file are subject to the Mozilla 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/MPL/
- *
- * 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 Communicator.
- *
- * The Initial Developer of the Original Code is
- * Netscape Communications Corp.
- * Portions created by the Initial Developer are Copyright (C) 1999
- * the Initial Developer. All Rights Reserved.
- *
- * Contributor(s):
- * Mike Pinkerton
- *
- * 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
- * of those above. If you wish to allow use of your version of this file only
- * under the terms of either the GPL or the LGPL, and not to allow others to
- * use your version of this file under the terms of the MPL, indicate your
- * decision by deleting the provisions above and replace them with the notice
- * and other provisions required by the GPL or the LGPL. If you do not delete
- * the provisions above, a recipient may use your version of this file under
- * the terms of any one of the MPL, the GPL or the LGPL.
- *
- * ***** END LICENSE BLOCK ***** */
-
- #include "nsISupports.idl"
- #include "nsISupportsArray.idl"
- #include "nsIFormatConverter.idl"
-
-
- %{ C++
-
- // these probably shouldn't live here, but in some central repository shared
- // by the entire app.
- #define kTextMime "text/plain"
- #define kUnicodeMime "text/unicode"
- #define kHTMLMime "text/html"
- #define kAOLMailMime "AOLMAIL"
- #define kPNGImageMime "image/png"
- #define kJPEGImageMime "image/jpg"
- #define kGIFImageMime "image/gif"
- #define kFileMime "application/x-moz-file"
-
- #define kURLMime "text/x-moz-url" // data contains url\ntitle
- #define kURLDataMime "text/x-moz-url-data" // data contains url only
- #define kURLDescriptionMime "text/x-moz-url-desc" // data contains description
- #define kNativeImageMime "application/x-moz-nativeimage"
- #define kNativeHTMLMime "application/x-moz-nativehtml"
-
- // the source URL for a file promise
- #define kFilePromiseURLMime "application/x-moz-file-promise-url"
- // the destination filename for a file promise
- #define kFilePromiseDestFilename "application/x-moz-file-promise-dest-filename"
- // a dataless flavor used to interact with the OS during file drags
- #define kFilePromiseMime "application/x-moz-file-promise"
- // a synthetic flavor, put into the transferable once we know the destination directory of a file drag
- #define kFilePromiseDirectoryMime "application/x-moz-file-promise-dir"
-
- %}
-
-
- /**
- * nsIFlavorDataProvider allows a flavor to 'promise' data later,
- * supplying the data lazily.
- *
- * To use it, call setTransferData, passing the flavor string,
- * a nsIFlavorDataProvider QI'd to nsISupports, and a data size of 0.
- *
- * When someone calls getTransferData later, if the data size is
- * stored as 0, the nsISupports will be QI'd to nsIFlavorDataProvider,
- * and its getFlavorData called.
- *
- */
- interface nsITransferable;
-
- [scriptable, uuid(7E225E5F-711C-11D7-9FAE-000393636592)]
- interface nsIFlavorDataProvider : nsISupports
- {
-
- /**
- * Retrieve the data from this data provider.
- *
- * @param aTransferable (in parameter) the transferable we're being called for.
- * @param aFlavor (in parameter) the flavor of data to retrieve
- * @param aData the data. Some variant of class in nsISupportsPrimitives.idl
- * @param aDataLen the length of the data
- */
- void getFlavorData(in nsITransferable aTransferable, in string aFlavor, out nsISupports aData, out unsigned long aDataLen);
- };
-
-
- [scriptable, uuid(8B5314BC-DB01-11d2-96CE-0060B0FB9956)]
- interface nsITransferable : nsISupports
- {
- const long kFlavorHasDataProvider = 0;
-
- /**
- * Computes a list of flavors (mime types as nsISupportsCString) that the transferable
- * can export, either through intrinsic knowledge or output data converters.
- *
- * @param aDataFlavorList fills list with supported flavors. This is a copy of
- * the internal list, so it may be edited w/out affecting the transferable.
- */
- nsISupportsArray flavorsTransferableCanExport ( ) ;
-
- /**
- * Given a flavor retrieve the data.
- *
- * @param aFlavor (in parameter) the flavor of data to retrieve
- * @param aData the data. Some variant of class in nsISupportsPrimitives.idl
- * @param aDataLen the length of the data
- */
- void getTransferData ( in string aFlavor, out nsISupports aData, out unsigned long aDataLen ) ;
-
- /**
- * Returns the best flavor in the transferable, given those that have
- * been added to it with |AddFlavor()|
- *
- * @param aFlavor (out parameter) the flavor of data that was retrieved
- * @param aData the data. Some variant of class in nsISupportsPrimitives.idl
- * @param aDataLen the length of the data
- */
- void getAnyTransferData ( out string aFlavor, out nsISupports aData, out unsigned long aDataLen ) ;
-
- /**
- * Returns true if the data is large.
- */
- boolean isLargeDataSet ( ) ;
-
-
- ///////////////////////////////
- // Setter part of interface
- ///////////////////////////////
-
- /**
- * Computes a list of flavors (mime types as nsISupportsCString) that the transferable can
- * accept into it, either through intrinsic knowledge or input data converters.
- *
- * @param outFlavorList fills list with supported flavors. This is a copy of
- * the internal list, so it may be edited w/out affecting the transferable.
- */
- nsISupportsArray flavorsTransferableCanImport ( ) ;
-
- /**
- * Sets the data in the transferable with the specified flavor. The transferable
- * will maintain its own copy the data, so it is not necessary to do that beforehand.
- *
- * @param aFlavor the flavor of data that is being set
- * @param aData the data, some variant of class in nsISupportsPrimitives.idl,
- * or an nsIFlavorDataProvider (see above)
- * @param aDataLen the length of the data, or 0 if passing a nsIFlavorDataProvider
- */
- void setTransferData ( in string aFlavor, in nsISupports aData, in unsigned long aDataLen ) ;
-
- /**
- * Add the data flavor, indicating that this transferable
- * can receive this type of flavor
- *
- * @param aDataFlavor a new data flavor to handle
- */
- void addDataFlavor ( in string aDataFlavor ) ;
-
- /**
- * Removes the data flavor matching the given one (string compare) and the data
- * that goes along with it.
- *
- * @param aDataFlavor a data flavor to remove
- */
- void removeDataFlavor ( in string aDataFlavor ) ;
-
- attribute nsIFormatConverter converter;
-
- };
-
-