50 lines
1.1 KiB
JavaScript
50 lines
1.1 KiB
JavaScript
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/**
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* Sample plugin.
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*/
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Draw.loadPlugin(function(ui) {
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/**
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* Overrides SVG export to add metadata for each cell.
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*/
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var graphCreateSvgImageExport = Graph.prototype.createSvgImageExport;
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Graph.prototype.createSvgImageExport = function()
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{
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var exp = graphCreateSvgImageExport.apply(this, arguments);
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// Overrides rendering to add metadata
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var expDrawCellState = exp.drawCellState;
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exp.drawCellState = function(state, canvas)
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{
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var svgDoc = canvas.root.ownerDocument;
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var g = (svgDoc.createElementNS != null) ?
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svgDoc.createElementNS(mxConstants.NS_SVG, 'g') : svgDoc.createElement('g');
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g.setAttribute('id', 'cell-' + state.cell.id);
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// Temporary replaces root for content rendering
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var prev = canvas.root;
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prev.appendChild(g);
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canvas.root = g;
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expDrawCellState.apply(this, arguments);
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// Adds metadata if group is not empty
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if (g.firstChild == null)
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{
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g.parentNode.removeChild(g);
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}
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else if (mxUtils.isNode(state.cell.value))
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{
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g.setAttribute('content', mxUtils.getXml(state.cell.value));
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}
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// Restores previous root
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canvas.root = prev;
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};
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return exp;
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};
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});
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