mxgraph-map-fix
Version:
mxGraph is a fully client side JavaScript diagramming library that uses SVG and HTML for rendering.
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HTML
<!--
Copyright (c) 2006-2013, JGraph Ltd
Backend example for mxGraph. This example demonstrates using
AJAX to open and save XML from a .NET backend.
-->
<html>
<head>
<title>Backend example for mxGraph</title>
<!-- Sets the basepath for the library if not in same directory -->
<script type="text/javascript">
mxBasePath = '/mxgraph/javascript/src';
</script>
<!-- Loads and initializes the library -->
<script type="text/javascript" src="/mxgraph/javascript/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 {
// Disables the built-in context menu
mxEvent.disableContextMenu(container);
// Creates the graph inside the given container
var graph = new mxGraph(container);
// Opens a file from the backend
document.body.appendChild(mxUtils.button('Open', function () {
// Asks for dummy file ID to demonstrate handling of IDs in general
var id = mxUtils.prompt('Enter file ID');
mxUtils.get('Backend.ashx?id=' + encodeURIComponent(id), function (req) {
var node = req.getDocumentElement();
var dec = new mxCodec(node.ownerDocument);
dec.decode(node, graph.getModel());
// Stores ID for saving
graph.id = id;
});
}));
// Saves a file to the backend
document.body.appendChild(mxUtils.button('Save', function () {
if (graph.id == null) {
mxUtils.alert('No open file');
}
else {
var enc = new mxCodec();
var node = enc.encode(graph.getModel());
var xml = mxUtils.getXml(node);
mxUtils.post('Backend.ashx?id=' + encodeURIComponent(graph.id), 'xml=' + encodeURIComponent(xml), function () {
mxUtils.alert('Saved');
}, function () {
mxUtils.alert('Error');
});
}
}));
}
};
</script>
</head>
<!-- Page passes the container for the graph to the program -->
<body onload="main(document.getElementById('graphContainer'))">
<!-- Creates a container for the graph with a grid wallpaper -->
<div id="graphContainer"
style="position:relative;overflow:hidden;width:321px;height:241px;background:url('mxgraph/javascript/examples/editors/images/grid.gif');cursor:default;">
</div>
<!--Ignore this. Just checks for the /mxgraph virtual directory. -->
<div style="border: solid 1px black;background:red;display:none;padding:10px;width:60%;" id="warning">
<h3>Warning: Virtual Directory /mxgraph not found!</h3>
<p>
A virtual directory (<code>/mxgraph</code>) that points to the top-level
directory of the mxGraph distribution is required in IIS for these examples
to work. This virtual directory must be manually created using the IIS Manager.
</p>
</div>
<script type="text/javascript">
// Checks if the virtual directory exists by loading an image that should be in
// the virtual directory. If the image cannot be found then a warning is shown.
var image = new Image();
image.onerror = function () {
document.getElementById('warning').style.display = '';
}
image.src = '/mxgraph/javascript/src/images/transparent.gif';
</script>
</body>
</html>