<!--
Copyright (c) 2006-2013, JGraph Ltd
Monitor example for mxGraph. This eample demonstrates using a
graph to display the current state of a workflow.
-->
<html>
<head>
<title>mxGraph Workflow Monitor</title>
<!-- Sets the basepath for the library if not in same directory -->
<script type="text/javascript">
mxBasePath = '../src';
</script>
<!-- Loads and initializes the library -->
<script type="text/javascript" src="../src/js/mxClient.js"></script>
<!-- Example code -->
<script type="text/javascript">
// Program starts here. Creates a sample graph in the
// DOM node with the specified ID. This function is invoked
// from the onLoad event handler of the document (see below).
function main(container)
{
// Checks if the browser is supported
if (!mxClient.isBrowserSupported())
{
// Displays an error message if the browser is not supported.
mxUtils.error('Browser is not supported!', 200, false);
}
else
{
mxConstants.SHADOWCOLOR = '#e0e0e0';
// Creates the graph inside the given container
var graph = createGraph(container);
// Creates a process display using the activity names as IDs to refer to the elements
var xml = '<mxGraphModel><root><mxCell id="0"/><mxCell id="1" parent="0"/>'+
'<mxCell id="2" value="Claim Handling Process" style="swimlane" vertex="1" parent="1"><mxGeometry x="1" width="850" height="400" as="geometry"/></mxCell>'+
'<mxCell id="3" value="Claim Manager" style="swimlane" vertex="1" parent="2"><mxGeometry x="30" width="820" height="200" as="geometry"/></mxCell>'+
'<mxCell id="5" value="" style="start" vertex="1" parent="3"><mxGeometry x="40" y="85" width="30" height="30" as="geometry"/></mxCell>'+
'<mxCell id="AuthorizeClaim" value="Authorize
Claim" vertex="1" parent="3"><mxGeometry x="90" y="80" width="100" height="40" as="geometry"/></mxCell>'+
'<mxCell id="6" value="X" style="step" vertex="1" parent="3"><mxGeometry x="210" y="85" width="30" height="30" as="geometry"/></mxCell>'+
'<mxCell id="ApproveClaim" value="Approve
Claim" vertex="1" parent="3"><mxGeometry x="260" y="80" width="100" height="40" as="geometry"/></mxCell>'+
'<mxCell id="7" value="X" style="step" vertex="1" parent="3"><mxGeometry x="380" y="85" width="30" height="30" as="geometry"/></mxCell>'+
'<mxCell id="8" value="" edge="1" parent="3" source="5" target="AuthorizeClaim"><mxGeometry relative="1" as="geometry"/></mxCell>'+
'<mxCell id="9" value="" edge="1" parent="3" source="AuthorizeClaim" target="6"><mxGeometry relative="1" as="geometry"/></mxCell>'+
'<mxCell id="10" value="" edge="1" parent="3" source="6" target="ApproveClaim"><mxGeometry relative="1" as="geometry"/></mxCell>'+
'<mxCell id="11" value="" edge="1" parent="3" source="ApproveClaim" target="7"><mxGeometry relative="1" as="geometry"/></mxCell>'+
'<mxCell id="12" value="" edge="1" parent="3" source="7" target="AuthorizeClaim"><mxGeometry relative="1" as="geometry"><Array as="points"><mxPoint x="140" y="40"/></Array></mxGeometry></mxCell>'+
'<mxCell id="ReviewClaim" value="Review
Claim" vertex="1" parent="3"><mxGeometry x="480" y="80" width="100" height="40" as="geometry"/></mxCell>'+
'<mxCell id="22" value="X" style="step" vertex="1" parent="3"><mxGeometry x="600" y="85" width="30" height="30" as="geometry"/></mxCell>'+
'<mxCell id="23" value="" edge="1" parent="3" source="ReviewClaim" target="22"><mxGeometry relative="1" as="geometry"/></mxCell>'+
'<mxCell id="ApproveReviewedClaim" value="Approve Rev.
Claim" vertex="1" parent="3"><mxGeometry x="650" y="80" width="100" height="40" as="geometry"/></mxCell>'+
'<mxCell id="26" value="" edge="1" parent="3" source="22" target="ApproveReviewedClaim"><mxGeometry relative="1" as="geometry"/></mxCell>'+
'<mxCell id="27" value="X" style="step" vertex="1" parent="3"><mxGeometry x="770" y="85" width="30" height="30" as="geometry"/></mxCell>'+
'<mxCell id="28" value="" edge="1" target="27" parent="3" source="ApproveReviewedClaim"><mxGeometry relative="1" as="geometry"><mxPoint x="740" y="100" as="sourcePoint"/><mxPoint x="760" y="100" as="targetPoint"/></mxGeometry></mxCell>'+
'<mxCell id="32" value="" edge="1" parent="3" source="27" target="ReviewClaim"><mxGeometry relative="1" as="geometry"><Array as="points"><mxPoint x="665" y="160"/></Array></mxGeometry></mxCell>'+
'<mxCell id="4" value="Accountant" style="swimlane" vertex="1" parent="2"><mxGeometry x="30" y="200" width="820" height="200" as="geometry"/></mxCell>'+
'<mxCell id="EnterAccountingData" value="Enter
Data" vertex="1" parent="4"><mxGeometry x="430" y="80" width="100" height="40" as="geometry"/></mxCell>'+
'<mxCell id="14" value="X" style="step" vertex="1" parent="4"><mxGeometry x="550" y="85" width="30" height="30" as="geometry"/></mxCell>'+
'<mxCell id="15" value="" edge="1" parent="4" source="EnterAccountingData" target="14"><mxGeometry relative="1" as="geometry"/></mxCell>'+
'<mxCell id="CheckAccountingData" value="Check
Data" vertex="1" parent="4"><mxGeometry x="600" y="80" width="100" height="40" as="geometry"/></mxCell>'+
'<mxCell id="16" value="" edge="1" parent="4" source="14" target="CheckAccountingData"><mxGeometry relative="1" as="geometry"/></mxCell>'+
'<mxCell id="17" value="X" style="step" vertex="1" parent="4"><mxGeometry x="720" y="85" width="30" height="30" as="geometry"/></mxCell>'+
'<mxCell id="18" value="" edge="1" parent="4" source="CheckAccountingData" target="17"><mxGeometry relative="1" as="geometry"/></mxCell>'+
'<mxCell id="19" value="" style="end" vertex="1" parent="4"><mxGeometry x="770" y="85" width="30" height="30" as="geometry"/></mxCell>'+
'<mxCell id="20" value="" edge="1" parent="4" source="17" target="19"><mxGeometry relative="1" as="geometry"/></mxCell>'+
'<mxCell id="31" value="" edge="1" parent="4" source="17" target="EnterAccountingData"><mxGeometry relative="1" as="geometry"><Array as="points"><mxPoint x="625" y="160"/></Array></mxGeometry></mxCell>'+
'<mxCell id="13" value="" edge="1" parent="2" source="7" target="EnterAccountingData"><mxGeometry relative="1" as="geometry"/></mxCell>'+
'<mxCell id="24" value="" edge="1" parent="2" source="14" target="ReviewClaim" style="edgeStyle=none"><mxGeometry relative="1" as="geometry"><Array as="points"><mxPoint x="595" y="180"/><mxPoint x="480" y="180"/><mxPoint x="480" y="100"/></Array></mxGeometry></mxCell>'+
'<mxCell id="29" value="" edge="1" parent="2" source="22" target="EnterAccountingData"><mxGeometry relative="1" as="geometry"><Array as="points"><mxPoint x="469" y="40"/></Array></mxGeometry></mxCell>'+
'<mxCell id="30" value="" edge="1" parent="2" source="27" target="EnterAccountingData"><mxGeometry relative="1" as="geometry"><Array as="points"><mxPoint x="469" y="40"/></Array></mxGeometry></mxCell>'+
'<mxCell id="33" value="" edge="1" parent="2" source="6" target="EnterAccountingData"><mxGeometry relative="1" as="geometry"><Array as="points"><mxPoint x="255" y="200"/></Array></mxGeometry></mxCell>'+
'</root></mxGraphModel>';
var doc = mxUtils.parseXml(xml);
var codec = new mxCodec(doc);
codec.decode(doc.documentElement, graph.getModel());
}
// Creates a button to invoke the refresh function
document.body.appendChild(mxUtils.button('Update', function(evt)
{
// XML is normally fetched from URL at server using mxUtils.get - this is a client-side
// string with randomized states to demonstrate the idea of the workflow monitor
var xml = '<process><update id="ApproveClaim" state="'+getState()+'"/><update id="AuthorizeClaim" state="'+getState()+'"/>'+
'<update id="CheckAccountingData" state="'+getState()+'"/><update id="ReviewClaim" state="'+getState()+'"/>'+
'<update id="ApproveReviewedClaim" state="'+getState()+'"/><update id="EnterAccountingData" state="'+getState()+'"/></process>';
update(graph, xml);
}));
};
/**
* Updates the display of the given graph using the XML data
*/
function update(graph, xml)
{
if (xml != null && xml.length > 0)
{
var doc = mxUtils.parseXml(xml);
if (doc != null && doc.documentElement != null)
{
var model = graph.getModel();
var nodes = doc.documentElement.getElementsByTagName('update');
if (nodes != null && nodes.length > 0)
{
model.beginUpdate();
try
{
for (var i = 0; i < nodes.length; i++)
{
// Processes the activity nodes inside the process node
var id = nodes[i].getAttribute('id');
var state = nodes[i].getAttribute('state');
// Gets the cell for the given activity name from the model
var cell = model.getCell(id);
// Updates the cell color and adds some tooltip information
if (cell != null)
{
// Resets the fillcolor and the overlay
graph.setCellStyles(mxConstants.STYLE_FILLCOLOR, 'white', [cell]);
graph.removeCellOverlays(cell);
// Changes the cell color for the known states
if (state == 'Running')
{
graph.setCellStyles(mxConstants.STYLE_FILLCOLOR, '#f8cecc', [cell]);
}
else if (state == 'Waiting')
{
graph.setCellStyles(mxConstants.STYLE_FILLCOLOR, '#fff2cc', [cell]);
}
else if (state == 'Completed')
{
graph.setCellStyles(mxConstants.STYLE_FILLCOLOR, '#d4e1f5', [cell]);
}
// Adds tooltip information using an overlay icon
if (state != 'Init')
{
// Sets the overlay for the cell in the graph
graph.addCellOverlay(cell, createOverlay(graph.warningImage, 'State: '+state));
}
}
} // for
}
finally
{
model.endUpdate();
}
}
}
}
};
/**
* Creates an overlay object using the given tooltip and text for the alert window
* which is being displayed on click.
*/
function createOverlay(image, tooltip)
{
var overlay = new mxCellOverlay(image, tooltip);
// Installs a handler for clicks on the overlay
overlay.addListener(mxEvent.CLICK, function(sender, evt)
{
mxUtils.alert(tooltip + '\nLast update: ' + new Date());
});
return overlay;
};
/**
* Creates and returns an empty graph inside the given container.
*/
function createGraph(container)
{
var graph = new mxGraph(container);
graph.setTooltips(true);
graph.setEnabled(false);
// Disables folding
graph.isCellFoldable = function(cell, collapse)
{
return false;
};
// Creates the stylesheet for the process display
var style = graph.getStylesheet().getDefaultVertexStyle();
style[mxConstants.STYLE_FONTSIZE] = 11;
style[mxConstants.STYLE_FONTCOLOR] = 'black';
style[mxConstants.STYLE_STROKECOLOR] = '#808080';
style[mxConstants.STYLE_FILLCOLOR] = 'white';
style[mxConstants.STYLE_GRADIENTCOLOR] = 'white';
style[mxConstants.STYLE_GRADIENT_DIRECTION] = mxConstants.DIRECTION_EAST;
style[mxConstants.STYLE_ROUNDED] = true;
style[mxConstants.STYLE_SHADOW] = true;
style[mxConstants.STYLE_FONTSTYLE] = 1;
style = graph.getStylesheet().getDefaultEdgeStyle();
style[mxConstants.STYLE_EDGE] = mxEdgeStyle.ElbowConnector;
style[mxConstants.STYLE_STROKECOLOR] = '#808080';
style[mxConstants.STYLE_ROUNDED] = true;
style[mxConstants.STYLE_SHADOW] = true;
style = [];
style[mxConstants.STYLE_SHAPE] = mxConstants.SHAPE_SWIMLANE;
style[mxConstants.STYLE_PERIMETER] = mxPerimeter.RectanglePerimeter;
style[mxConstants.STYLE_STROKECOLOR] = '#a0a0a0';
style[mxConstants.STYLE_FONTCOLOR] = '#606060';
style[mxConstants.STYLE_FILLCOLOR] = '#E0E0DF';
style[mxConstants.STYLE_GRADIENTCOLOR] = 'white';
style[mxConstants.STYLE_STARTSIZE] = 30;
style[mxConstants.STYLE_ROUNDED] = false;
style[mxConstants.STYLE_FONTSIZE] = 12;
style[mxConstants.STYLE_FONTSTYLE] = 0;
style[mxConstants.STYLE_HORIZONTAL] = false;
// To improve text quality for vertical labels in some old IE versions...
style[mxConstants.STYLE_LABEL_BACKGROUNDCOLOR] = '#efefef';
graph.getStylesheet().putCellStyle('swimlane', style);
style = [];
style[mxConstants.STYLE_SHAPE] = mxConstants.SHAPE_RHOMBUS;
style[mxConstants.STYLE_PERIMETER] = mxPerimeter.RhombusPerimeter;
style[mxConstants.STYLE_STROKECOLOR] = '#91BCC0';
style[mxConstants.STYLE_FONTCOLOR] = 'gray';
style[mxConstants.STYLE_FILLCOLOR] = '#91BCC0';
style[mxConstants.STYLE_GRADIENTCOLOR] = 'white';
style[mxConstants.STYLE_ALIGN] = mxConstants.ALIGN_CENTER;
style[mxConstants.STYLE_VERTICAL_ALIGN] = mxConstants.ALIGN_MIDDLE;
style[mxConstants.STYLE_FONTSIZE] = 16;
graph.getStylesheet().putCellStyle('step', style);
style = [];
style[mxConstants.STYLE_SHAPE] = mxConstants.SHAPE_ELLIPSE;
style[mxConstants.STYLE_PERIMETER] = mxPerimeter.EllipsePerimeter;
style[mxConstants.STYLE_FONTCOLOR] = 'gray';
style[mxConstants.STYLE_FILLCOLOR] = '#A0C88F';
style[mxConstants.STYLE_GRADIENTCOLOR] = 'white';
style[mxConstants.STYLE_STROKECOLOR] = '#A0C88F';
style[mxConstants.STYLE_ALIGN] = mxConstants.ALIGN_CENTER;
style[mxConstants.STYLE_VERTICAL_ALIGN] = mxConstants.ALIGN_MIDDLE;
style[mxConstants.STYLE_FONTSIZE] = 16;
graph.getStylesheet().putCellStyle('start', style);
style = mxUtils.clone(style);
style[mxConstants.STYLE_FILLCOLOR] = '#DACCBC';
style[mxConstants.STYLE_STROKECOLOR] = '#AF7F73';
graph.getStylesheet().putCellStyle('end', style);
return graph;
};
/**
* Returns a random state.
*/
function getState()
{
var state = 'Init';
var rnd = Math.random() * 4;
if (rnd > 3)
{
state = 'Completed';
}
else if (rnd > 2)
{
state = 'Running';
}
else if (rnd > 1)
{
state = 'Waiting';
}
return state;
};
</script>
</head>
<!-- Page passes the container and control to the main function -->
<body onload="main(document.getElementById('graphContainer'));">
<!-- Acts as a container for the graph -->
<div id="graphContainer" style="overflow:hidden;position:relative;width:861px;height:406px;cursor:default;">
</div>
<br>
</body>
</html>