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184 lines
7.1 KiB
Plaintext
184 lines
7.1 KiB
Plaintext
/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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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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#include "nsISupports.idl"
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#include "nsISupportsArray.idl"
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#include "nsIFormatConverter.idl"
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%{ C++
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// these probably shouldn't live here, but in some central repository shared
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// by the entire app.
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#define kTextMime "text/plain"
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#define kUnicodeMime "text/unicode"
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#define kMozTextInternal "text/x-moz-text-internal" // text data which isn't suppoed to be parsed by other apps.
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#define kHTMLMime "text/html"
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#define kAOLMailMime "AOLMAIL"
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#define kPNGImageMime "image/png"
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#define kJPEGImageMime "image/jpeg"
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#define kJPGImageMime "image/jpg"
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#define kGIFImageMime "image/gif"
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#define kFileMime "application/x-moz-file"
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#define kURLMime "text/x-moz-url" // data contains url\ntitle
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#define kURLDataMime "text/x-moz-url-data" // data contains url only
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#define kURLDescriptionMime "text/x-moz-url-desc" // data contains description
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#define kURLPrivateMime "text/x-moz-url-priv" // same as kURLDataMime but for private uses
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#define kNativeImageMime "application/x-moz-nativeimage"
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#define kNativeHTMLMime "application/x-moz-nativehtml"
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// These are used to indicate the context for a fragment of HTML source, such
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// that some parent structure and style can be preserved. kHTMLContext
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// contains the serialized ancestor elements, whereas kHTMLInfo are numbers
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// identifying where in the context the fragment was from.
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#define kHTMLContext "text/_moz_htmlcontext"
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#define kHTMLInfo "text/_moz_htmlinfo"
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// the source URL for a file promise
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#define kFilePromiseURLMime "application/x-moz-file-promise-url"
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// the destination filename for a file promise
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#define kFilePromiseDestFilename "application/x-moz-file-promise-dest-filename"
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// a dataless flavor used to interact with the OS during file drags
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#define kFilePromiseMime "application/x-moz-file-promise"
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// a synthetic flavor, put into the transferable once we know the destination directory of a file drag
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#define kFilePromiseDirectoryMime "application/x-moz-file-promise-dir"
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%}
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/**
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* nsIFlavorDataProvider allows a flavor to 'promise' data later,
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* supplying the data lazily.
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*
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* To use it, call setTransferData, passing the flavor string,
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* a nsIFlavorDataProvider QI'd to nsISupports, and a data size of 0.
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*
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* When someone calls getTransferData later, if the data size is
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* stored as 0, the nsISupports will be QI'd to nsIFlavorDataProvider,
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* and its getFlavorData called.
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*
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*/
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interface nsITransferable;
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interface nsILoadContext;
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[scriptable, uuid(7E225E5F-711C-11D7-9FAE-000393636592)]
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interface nsIFlavorDataProvider : nsISupports
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{
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/**
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* Retrieve the data from this data provider.
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*
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* @param aTransferable (in parameter) the transferable we're being called for.
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* @param aFlavor (in parameter) the flavor of data to retrieve
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* @param aData the data. Some variant of class in nsISupportsPrimitives.idl
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* @param aDataLen the length of the data
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*/
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void getFlavorData(in nsITransferable aTransferable, in string aFlavor, out nsISupports aData, out unsigned long aDataLen);
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};
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[scriptable, uuid(5a611a60-e5b5-11e1-aff1-0800200c9a66)]
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interface nsITransferable : nsISupports
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{
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const long kFlavorHasDataProvider = 0;
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/**
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* Initializes a transferable object. This should be called on all
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* transferable objects. Failure to do so will result in fatal assertions in
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* debug builds.
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*
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* @param aContext the load context associated with the transferable object.
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* This can be set to null if a load context is not available.
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*/
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void init(in nsILoadContext aContext);
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/**
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* Computes a list of flavors (mime types as nsISupportsCString) that the transferable
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* can export, either through intrinsic knowledge or output data converters.
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*
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* @param aDataFlavorList fills list with supported flavors. This is a copy of
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* the internal list, so it may be edited w/out affecting the transferable.
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*/
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nsISupportsArray flavorsTransferableCanExport ( ) ;
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/**
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* Given a flavor retrieve the data.
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*
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* @param aFlavor (in parameter) the flavor of data to retrieve
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* @param aData the data. Some variant of class in nsISupportsPrimitives.idl
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* @param aDataLen the length of the data
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*/
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void getTransferData ( in string aFlavor, out nsISupports aData, out unsigned long aDataLen ) ;
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/**
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* Returns the best flavor in the transferable, given those that have
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* been added to it with |AddFlavor()|
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*
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* @param aFlavor (out parameter) the flavor of data that was retrieved
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* @param aData the data. Some variant of class in nsISupportsPrimitives.idl
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* @param aDataLen the length of the data
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*/
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void getAnyTransferData ( out string aFlavor, out nsISupports aData, out unsigned long aDataLen ) ;
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/**
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* Returns true if the data is large.
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*/
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boolean isLargeDataSet ( ) ;
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///////////////////////////////
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// Setter part of interface
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///////////////////////////////
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/**
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* Computes a list of flavors (mime types as nsISupportsCString) that the transferable can
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* accept into it, either through intrinsic knowledge or input data converters.
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*
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* @param outFlavorList fills list with supported flavors. This is a copy of
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* the internal list, so it may be edited w/out affecting the transferable.
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*/
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nsISupportsArray flavorsTransferableCanImport ( ) ;
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/**
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* Sets the data in the transferable with the specified flavor. The transferable
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* will maintain its own copy the data, so it is not necessary to do that beforehand.
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*
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* @param aFlavor the flavor of data that is being set
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* @param aData the data, either some variant of class in nsISupportsPrimitives.idl,
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* an nsIFile, or an nsIFlavorDataProvider (see above)
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* @param aDataLen the length of the data, or 0 if passing a nsIFlavorDataProvider
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*/
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void setTransferData ( in string aFlavor, in nsISupports aData, in unsigned long aDataLen ) ;
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/**
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* Add the data flavor, indicating that this transferable
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* can receive this type of flavor
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*
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* @param aDataFlavor a new data flavor to handle
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*/
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void addDataFlavor ( in string aDataFlavor ) ;
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/**
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* Removes the data flavor matching the given one (string compare) and the data
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* that goes along with it.
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*
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* @param aDataFlavor a data flavor to remove
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*/
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void removeDataFlavor ( in string aDataFlavor ) ;
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attribute nsIFormatConverter converter;
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/**
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* Use of the SetIsPrivateData() method generated by isPrivateData attribute should
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* be avoided as much as possible because the value set may not reflect the status
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* of the context in which the transferable was created.
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*/
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[noscript] attribute boolean isPrivateData;
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};
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