84 lines
1.6 KiB
JavaScript
84 lines
1.6 KiB
JavaScript
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/**
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* Copyright (c) 2006-2015, JGraph Ltd
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* Copyright (c) 2006-2015, Gaudenz Alder
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*/
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mxCodecRegistry.register(function()
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{
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/**
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* Class: mxRootChangeCodec
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*
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* Codec for <mxRootChange>s. This class is created and registered
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* dynamically at load time and used implicitly via <mxCodec> and
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* the <mxCodecRegistry>.
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*
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* Transient Fields:
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*
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* - model
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* - previous
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* - root
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*/
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var codec = new mxObjectCodec(new mxRootChange(),
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['model', 'previous', 'root']);
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/**
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* Function: onEncode
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*
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* Encodes the child recursively.
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*/
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codec.afterEncode = function(enc, obj, node)
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{
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enc.encodeCell(obj.root, node);
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return node;
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};
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/**
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* Function: beforeDecode
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*
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* Decodes the optional children as cells
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* using the respective decoder.
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*/
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codec.beforeDecode = function(dec, node, obj)
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{
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if (node.firstChild != null &&
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node.firstChild.nodeType == mxConstants.NODETYPE_ELEMENT)
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{
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// Makes sure the original node isn't modified
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node = node.cloneNode(true);
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var tmp = node.firstChild;
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obj.root = dec.decodeCell(tmp, false);
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var tmp2 = tmp.nextSibling;
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tmp.parentNode.removeChild(tmp);
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tmp = tmp2;
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while (tmp != null)
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{
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tmp2 = tmp.nextSibling;
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dec.decodeCell(tmp);
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tmp.parentNode.removeChild(tmp);
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tmp = tmp2;
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}
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}
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return node;
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};
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/**
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* Function: afterDecode
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*
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* Restores the state by assigning the previous value.
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*/
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codec.afterDecode = function(dec, node, obj)
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{
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obj.previous = obj.root;
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return obj;
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};
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// Returns the codec into the registry
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return codec;
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}());
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