162 lines
4.7 KiB
HTML
162 lines
4.7 KiB
HTML
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<!--
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Copyright (c) 2006-2013, JGraph Ltd
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Offpage example for mxGraph. This example demonstrates creating
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offpage connectors in a graph and loading a new diagram on a
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single click.
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-->
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<html>
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<head>
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<title>Offpage connector example for mxGraph</title>
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<!-- Sets the basepath for the library if not in same directory -->
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<script type="text/javascript">
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mxBasePath = '../src';
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</script>
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<!-- Loads and initializes the library -->
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<script type="text/javascript" src="../src/js/mxClient.js"></script>
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<!-- Example code -->
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<script type="text/javascript">
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// Use complete cell as highlight region
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mxConstants.ACTIVE_REGION = 1;
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// Program starts here. Creates a sample graph in the dynamically
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// created DOM node called container which is created below.
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function main()
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{
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// Checks if browser is supported
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if (!mxClient.isBrowserSupported())
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{
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// Displays an error message if the browser is
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// not supported.
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mxUtils.error('Browser is not supported!', 200, false);
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}
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else
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{
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var container = document.createElement('div');
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container.style.position = 'absolute';
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container.style.overflow = 'hidden';
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container.style.left = '0px';
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container.style.top = '0px';
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container.style.right = '0px';
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container.style.bottom = '0px';
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container.style.background = 'url("editors/images/grid.gif")';
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// Workaround for Internet Explorer ignoring certain styles
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if (mxClient.IS_QUIRKS)
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{
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document.body.style.overflow = 'hidden';
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new mxDivResizer(container);
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}
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document.body.appendChild(container);
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// Creates the graph inside the given container
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var graph = new mxGraph(container);
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graph.setEnabled(false);
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// Highlights offpage connectors
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var highlight = new mxCellTracker(graph, null, function(me)
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{
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var cell = me.getCell();
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if (cell != null &&
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cell.value != null &&
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typeof(cell.value.create) == 'function')
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{
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return cell;
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}
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return null;
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});
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// Handles clicks on offpage connectors and
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// executes function in user object
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graph.addListener(mxEvent.CLICK, function(source, evt)
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{
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var cell = evt.getProperty('cell');
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if (cell != null &&
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cell.value != null &&
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typeof(cell.value.create) == 'function')
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{
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cell.value.create();
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}
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});
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// Handles clicks on offpage connectors and
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// executes function in user object
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graph.getCursorForCell = function(cell)
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{
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if (cell != null &&
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cell.value != null &&
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typeof(cell.value.create) == 'function')
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{
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return 'pointer';
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}
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};
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// Gets the default parent for inserting new cells. This
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// is normally the first child of the root (ie. layer 0).
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var first = null;
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var second = null;
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first = function()
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{
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var value = {toString: function() { return 'Next'; }, create: second};
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// Adds cells to the model in a single step
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graph.getModel().beginUpdate();
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try
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{
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graph.getModel().setRoot(graph.getModel().createRoot());
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var parent = graph.getDefaultParent();
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var v1 = graph.insertVertex(parent, null, 'Click', 30, 20, 80, 30, 'fillColor=#FFFF88;strokeColor=#FF1A00');
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var v2 = graph.insertVertex(parent, null, 'Next', 20, 150, 100, 30, 'fillColor=#FFFF88;strokeColor=#FF1A00');
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var v3 = graph.insertVertex(parent, null, value, 200, 150, 40, 40, 'shape=triangle;align=left;fillColor=#C3D9FF;strokeColor=#4096EE');
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var e1 = graph.insertEdge(parent, null, null, v1, v2, 'strokeColor=#FF1A00');
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}
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finally
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{
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// Updates the display
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graph.getModel().endUpdate();
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}
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};
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second = function()
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{
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var value = {toString: function() { return 'Prev'; }, create: first};
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// Adds cells to the model in a single step
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graph.getModel().beginUpdate();
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try
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{
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graph.getModel().setRoot(graph.getModel().createRoot());
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var parent = graph.getDefaultParent();
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var v1 = graph.insertVertex(parent, null, 'Click', 30, 20, 80, 30, 'fillColor=#CDEB8B;strokeColor=#008C00');
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var v2 = graph.insertVertex(parent, null, 'Prev', 220, 20, 100, 30, 'fillColor=#CDEB8B;strokeColor=#008C00');
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var v3 = graph.insertVertex(parent, null, value, 30, 150, 40, 40, 'shape=triangle;align=right;fillColor=#C3D9FF;strokeColor=#4096EE;direction=west');
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var e1 = graph.insertEdge(parent, null, null, v1, v2, 'strokeColor=#008C00');
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}
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finally
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{
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// Updates the display
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graph.getModel().endUpdate();
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}
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};
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first();
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}
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};
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</script>
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</head>
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<!-- Calls the main function after the page has loaded. Container is dynamically created. -->
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<body onload="main();">
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</body>
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</html>
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