RetroZilla/toolkit/obsolete/content/nsClipboard.js
2015-10-20 23:03:22 -04:00

98 lines
3.7 KiB
JavaScript

/* -*- Mode: Java; tab-width: 4; 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.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Ben Matthew Goodger <ben@netscape.com>
*
* 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 ***** */
/**
* nsClipboard - wrapper around nsIClipboard and nsITransferable
* that simplifies access to the clipboard.
**/
var nsClipboard = {
_CB: null,
get mClipboard()
{
if (!this._CB)
{
const kCBContractID = "@mozilla.org/widget/clipboard;1";
const kCBIID = Components.interfaces.nsIClipboard;
this._CB = Components.classes[kCBContractID].getService(kCBIID);
}
return this._CB;
},
currentClipboard: null,
/**
* Array/Object read (Object aFlavourList, long aClipboard, Bool aAnyFlag) ;
*
* returns the data in the clipboard
*
* @param FlavourSet aFlavourSet
* formatted list of desired flavours
* @param long aClipboard
* the clipboard to read data from (kSelectionClipboard/kGlobalClipboard)
* @param Bool aAnyFlag
* should be false.
**/
read: function (aFlavourList, aClipboard, aAnyFlag)
{
this.currentClipboard = aClipboard;
var data = nsTransferable.get(aFlavourList, this.getClipboardTransferable, aAnyFlag);
return data.first.first; // only support one item
},
/**
* nsISupportsArray getClipboardTransferable (Object aFlavourList) ;
*
* returns a nsISupportsArray of the item on the clipboard
*
* @param Object aFlavourList
* formatted list of desired flavours.
**/
getClipboardTransferable: function (aFlavourList)
{
const supportsContractID = "@mozilla.org/supports-array;1";
const supportsIID = Components.interfaces.nsISupportsArray;
var supportsArray = Components.classes[supportsContractID].createInstance(supportsIID);
var trans = nsTransferable.createTransferable();
for (var flavour in aFlavourList)
trans.addDataFlavor(flavour);
nsClipboard.mClipboard.getData(trans, nsClipboard.currentClipboard)
supportsArray.AppendElement(trans);
return supportsArray;
}
};