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/**
* $Id: mxDefaultKeyHandlerCodec.js,v 1.5 2010-01-02 09:45:15 gaudenz Exp $
* Copyright (c) 2006-2010, JGraph Ltd
*/
mxCodecRegistry.register(function()
{
/**
* Class: mxDefaultKeyHandlerCodec
*
* Custom codec for configuring <mxDefaultKeyHandler>s. This class is created
* and registered dynamically at load time and used implicitely via
* <mxCodec> and the <mxCodecRegistry>. This codec only reads configuration
* data for existing key handlers, it does not encode or create key handlers.
*/
var codec = new mxObjectCodec(new mxDefaultKeyHandler());
/**
* Function: encode
*
* Returns null.
*/
codec.encode = function(enc, obj)
{
return null;
};
/**
* Function: decode
*
* Reads a sequence of the following child nodes
* and attributes:
*
* Child Nodes:
*
* add - Binds a keystroke to an actionname.
*
* Attributes:
*
* as - Keycode.
* action - Actionname to execute in editor.
* control - Optional boolean indicating if
* the control key must be pressed.
*
* Example:
*
* (code)
* <mxDefaultKeyHandler as="keyHandler">
* <add as="88" control="true" action="cut"/>
* <add as="67" control="true" action="copy"/>
* <add as="86" control="true" action="paste"/>
* </mxDefaultKeyHandler>
* (end)
*
* The keycodes are for the x, c and v keys.
*
* See also: <mxDefaultKeyHandler.bindAction>,
* http://www.js-examples.com/page/tutorials__key_codes.html
*/
codec.decode = function(dec, node, into)
{
if (into != null)
{
var editor = into.editor;
node = node.firstChild;
while (node != null)
{
if (!this.processInclude(dec, node, into) &&
node.nodeName == 'add')
{
var as = node.getAttribute('as');
var action = node.getAttribute('action');
var control = node.getAttribute('control');
into.bindAction(as, action, control);
}
node = node.nextSibling;
}
}
return into;
};
// Returns the codec into the registry
return codec;
}());
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