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demo.html
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<html>
<head>
<title>@ecolak mxGraph</title>
<style>
.container {
overflow: hidden;
position: absolute;
left: 120px;
top: 40px;
right: 0;
bottom: 0;
background: url("./src/grid.gif");
}
.toolbar {
display: flex;
align-items: center;
justify-content: left;
margin: 10px;
margin-left: 120px;
}
.toolbar button {
margin-left: 3px;
margin-right: 3px;
}
.sidebar {
font-size: 12px;
text-align: center;
overflow: hidden;
margin: 0;
padding: 0;
position: absolute;
width: 120px;
left: 0;
top: 0;
right: 0;
bottom: 0;
list-style: none;
padding-left: 10px;
padding-top: 10px;
}
.sidebar li {
list-style: none;
margin: 0;
padding: 0;
padding: 3px 5px;
margin-bottom: 6px;
width: 80px;
}
.sidebar li.task {
border: 1px solid #80c6ee;
cursor: pointer;
}
.taskWrapper .taskTitle {
color: #80c6ee;
}
.changeInput {
position: absolute;
top: 50px;
left: 150px;
z-index: 100;
}
</style>
<!-- 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
var json = localStorage.getItem('json')
render = (dataModel, graph) => {
const jsonEncoder = new JsonCodec();
let vertices = {};
const parent = graph.getDefaultParent();
graph.getModel().beginUpdate(); // Adds cells to the model in a single step
try {
dataModel && dataModel.graph.map((node)=> {
if(node.value) {
console.log(node.value);
if(typeof node.value === "object") {
const xmlNode = jsonEncoder.encode(node.value);
console.log(xmlNode)
vertices[node.id] = graph.insertVertex(parent, null, xmlNode, node.geometry.x, node.geometry.y, node.geometry.width, node.geometry.height, node.style);
} else if(node.value === "Edge") {
graph.insertEdge(parent, null, 'Edge', vertices[node.source], vertices[node.target], node.style)
}
}
});
} finally {
graph.getModel().endUpdate(); // Updates the display
}
}
class JsonCodec extends mxObjectCodec {
constructor() {
super((value)=>{});
}
encode (value) {
const xmlDoc = mxUtils.createXmlDocument();
const newObject = xmlDoc.createElement("TaskObject");
for(let prop in value) {
newObject.setAttribute(prop, value[prop]);
}
return newObject;
}
decode(model) {
return Object.keys(model.cells).map(
(iCell)=>{
const currentCell = model.getCell(iCell);
return (currentCell.value !== undefined)? currentCell : null;
}
).filter((item)=> (item !== null));
}
}
getJsonModel = (graph) => {
const encoder = new JsonCodec();
const jsonModel = encoder.decode(graph.getModel());
return {
"graph": jsonModel
}
}
function stringifyWithoutCircular(json){
return JSON.stringify(
json,
( key, value) => {
if((key === 'parent' || key == 'source' || key == 'target') && value !== null) {
return value.id;
} else if(key === 'value' && value !== null && value.localName) {
let results = {};
Object.keys(value.attributes).forEach(
(attrKey)=>{
const attribute = value.attributes[attrKey];
results[attribute.nodeName] = attribute.nodeValue;
}
)
return results;
}
return value;
},
4
);
}
function main() {
// 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 {
// Automatic layout part
let layout123 = document.getElementById('layout123');
const changeInput = document.querySelector('.changeInput')
const dom = `<label for="">label</label><input type="text" name="" id="label">
<label for="">value</label><input type="text" id='title'><input type='button' id='submit' value='submit'>`
let layoutFunc = function(v) {
graph.getModel().beginUpdate();
try {
layout.execute(graph.getDefaultParent());
}
catch (e) {
throw e;
}
finally {
graph.getModel().endUpdate();
}
}
layout123.addEventListener('click', layoutFunc)
// Enables guides
// Enable alignment lines to help locate
mxGraphHandler.prototype.guidesEnabled = true;
// Alt disables guides
mxGuide.prototype.isEnabledForEvent = function(evt)
{
return !mxEvent.isAltDown(evt);
};
// Specifies if waypoints should snap to the routing centers of terminals
mxEdgeHandler.prototype.snapToTerminals = true;
var graphs = [];
// Creates the graph inside the given container
var container = document.querySelector('.container');
document.body.appendChild(container);
var graph = new mxGraph(container);
var layout = new mxHierarchicalLayout(graph, mxConstants.DIRECTION_NORTH);
layout.parallelEdgeSpacing = 10;
graph.gridSize = 30;
// Disables built-in context menu
mxEvent.disableContextMenu(container);
graph.setPanning(true);
/
graph.setTooltips(true);
graph.setConnectable(true);
graph.setCellsEditable(true);
graph.setEnabled(true);
// Enables HTML labels
graph.setHtmlLabels(true);
// Uncomment the following if you want the container
// to fit the size of the graph
//graph.setResizeContainer(true);
// Enables rubberband selection
new mxKeyHandler(graph);
new mxRubberband(graph);
graph.centerZoom = true;
var toolbar = document.querySelector('.toolbar')
toolbar.appendChild(mxUtils.button('zoom (+)', function(evt){
graph.zoomIn();
}));
toolbar.appendChild(mxUtils.button('zoom (-)', function(evt){
graph.zoomOut();
}));
toolbar.appendChild(mxUtils.button('Restore', function(evt){
graph.zoomActual();
graph.zoomFactor = 1.2;
}));
var undoManager = new mxUndoManager();
var listener = function(sender, evt) {
undoManager.undoableEditHappened(evt.getProperty('edit'));
};
graph.getModel().addListener(mxEvent.UNDO, listener);
graph.getView().addListener(mxEvent.UNDO, listener);
toolbar.appendChild(mxUtils.button('Cancel', function() {
undoManager.undo();
}));
toolbar.appendChild(mxUtils.button('Anti-cancel', function() {
undoManager.redo();
}));
toolbar.appendChild(mxUtils.button('view XML', function() {
var encoder = new mxCodec();
var node = encoder.encode(graph.getModel());
mxUtils.popup(mxUtils.getXml(node), true);
}));
toolbar.appendChild(mxUtils.button('view JSON', function() {
const jsonNodes = getJsonModel(graph);
let jsonStr = stringifyWithoutCircular(jsonNodes)
localStorage.setItem('json', jsonStr)
json = jsonStr;
console.log(jsonStr)
}));
toolbar.appendChild(mxUtils.button('render JSON', function() {
render(JSON.parse(json), graph);
}));
// var keyHandler = new mxKeyHandler(graph);
// keyHandler.bindKey(46, function(evt) {
// console.log('aaaa')
// if (graph.isEnabled()) {
// graph.removeCells();
// }
// });
graphs.push(graph);
graph.getSelectionModel().addListener(mxEvent.CHANGE, function(sender, evt){
// console.log(sender)
})
function selectionChanged(graph) {
var cell = graph.getSelectionCell();
var attrs = cell.value.attributes;
changeInput.innerHTML = dom
const inputLabel = document.getElementById('label');
const inputValue = document.getElementById('title');
// console.log(cell, attrs)
var currentDom;
for (var i = 0; i < attrs.length; i++) {
if (attrs[i].nodeName === 'label') {
inputLabel.value = attrs[i].nodeValue
currentDom = inputLabel
}
if (attrs[i].nodeName === 'text') {
inputValue.value = attrs[i].nodeValue
currentDom = inputValue
}
bindTextField(graph, cell, attrs[i], currentDom)
// console.log(attrs[i].nodeName + ':' + attrs[i].nodeValue);
}
}
function bindTextField(graph, cell, attribute, currentDom) {
var applyHandler = function() {
var newValue = currentDom.value || '';
var oldValue = cell.getAttribute(attribute.nodeName, '');
if (newValue != oldValue) {
graph.getModel().beginUpdate();
try {
var edit = new mxCellAttributeChange(
cell, attribute.nodeName,
newValue);
// console.log(edit)
graph.getModel().execute(edit);
// graph.updateCellSize(cell);
} finally{
graph.getModel().endUpdate();
}
}
changeInput.innerHTML = ''
};
const button = document.getElementById('submit')
mxEvent.addListener(button, 'click', applyHandler);
}
// Returns the graph under the mouse
// Snaps to fixed points
mxConstraintHandler.prototype.intersects = function(icon, point, source, existingEdge) {
return (!source || existingEdge) || mxUtils.intersects(icon.bounds, point);
};
// Special case: Snaps source of new connections to fixed points
// Without a connect preview in connectionHandler.createEdgeState mouseMove
// and getSourcePerimeterPoint should be overriden by setting sourceConstraint
// sourceConstraint to null in mouseMove and updating it and returning the
// nearest point (cp) in getSourcePerimeterPoint (see below)
var mxConnectionHandlerUpdateEdgeState = mxConnectionHandler.prototype.updateEdgeState;
mxConnectionHandler.prototype.updateEdgeState = function(pt, constraint) {
if (pt != null && this.previous != null)
{
var constraints = this.graph.getAllConnectionConstraints(this.previous);
var nearestConstraint = null;
var dist = null;
for (var i = 0; i < constraints.length; i++)
{
var cp = this.graph.getConnectionPoint(this.previous, constraints[i]);
if (cp != null)
{
var tmp = (cp.x - pt.x) * (cp.x - pt.x) + (cp.y - pt.y) * (cp.y - pt.y);
if (dist == null || tmp < dist)
{
nearestConstraint = constraints[i];
dist = tmp;
}
}
}
if (nearestConstraint != null)
{
this.sourceConstraint = nearestConstraint;
}
// In case the edge style must be changed during the preview:
// this.edgeState.style['edgeStyle'] = 'orthogonalEdgeStyle';
// And to use the new edge style in the new edge inserted into the graph,
// update the cell style as follows:
//this.edgeState.cell.style = mxUtils.setStyle(this.edgeState.cell.style, 'edgeStyle', this.edgeState.style['edgeStyle']);
}
mxConnectionHandlerUpdateEdgeState.apply(this, arguments);
};
if (graph.connectionHandler.connectImage == null) {
graph.connectionHandler.isConnectableCell = function(cell) {
return false;
};
mxEdgeHandler.prototype.isConnectableCell = function(cell) {
return graph.connectionHandler.isConnectableCell(cell);
};
}
graph.getAllConnectionConstraints = function(terminal) {
if (terminal != null && this.model.isVertex(terminal.cell)) {
return [new mxConnectionConstraint(new mxPoint(0.5, 0), true),
new mxConnectionConstraint(new mxPoint(0, 0.5), true),
new mxConnectionConstraint(new mxPoint(1, 0.5), true),
new mxConnectionConstraint(new mxPoint(0.5, 1), true)];
}
return null;
};
// Connect preview
graph.connectionHandler.createEdgeState = function(me) {
var edge = graph.createEdge(null, null, 'Edge', null, null, 'edgeStyle=orthogonalEdgeStyle');
return new mxCellState(this.graph.view, edge, this.graph.getCellStyle(edge));
};
var graphF = function(evt) {
var x = mxEvent.getClientX(evt);
var y = mxEvent.getClientY(evt);
var elt = document.elementFromPoint(x, y);
for (var i = 0; i < graphs.length; i++)
{
if (mxUtils.isAncestorNode(graphs[i].container, elt))
{
return graphs[i];
}
}
return null;
};
// Inserts a cell at the given location
// Adds optional caching for the HTML label
// var cached = true;
// if (cached) {
// // Ignores cached label in codec
// mxCodecRegistry.getCodec(mxCell).exclude.push('div');
// // Invalidates cached labels
// graph.model.setValue = function(cell, value)
// {
// cell.div = null;
// mxGraphModel.prototype.setValue.apply(this, arguments);
// };
// }
// Installs a custom tooltip for cells
graph.getTooltipForCell = function(cell) {
return cell.getAttribute('desc')
}
graph.popupMenuHandler.factoryMethod = function(menu, cell, evt) {
return createPopupMenu(graph, menu, cell, evt);
};
// graph.isCellEditable = function(cell) {
// return !this.getModel().isEdge(cell);
// };
graph.convertValueToString = function(cell) {
if (mxUtils.isNode(cell.value) && cell.value.nodeName.toLowerCase() == 'taskobject') {
console.log(cell.getAttribute('label'))
// Returns a DOM for the label
var div = document.createElement('div');
div.setAttribute('class', 'taskWrapper');
div.innerHTML = `<span class='taskTitle'>${cell.getAttribute('label')}</span>`
mxUtils.br(div);
var p = document.createElement('p');
p.setAttribute('class', 'taskName');
p.innerHTML = cell.getAttribute('text');
div.appendChild(p);
return div;
}
return '';
};
var funct = function(graph, evt, target, x, y, value) {
// console.log(value)
// var cell = new mxCell(value, new mxGeometry(0, 0, 120, 40), 'strokeColor=#80c6ee;strokeWidth=2;fillColor=white');
// cell.vertex = true;
// var cells = graph.importCells([cell], x, y, target);
var doc = mxUtils.createXmlDocument();
var obj = doc.createElement('TaskObject');
obj.setAttribute('label', value);
obj.setAttribute('text', '');
obj.setAttribute('desc', 'Description')
//Get the top level, which can be considered as the parent node
var parent = graph.getDefaultParent();
//parent，value，x，y，width，height
//style, stylename;image=imageUrl
console.log(obj)
let cell = graph.insertVertex(parent, target, obj, x, y, 150, 60, 'strokeColor=#80c6ee;strokeWidth=2;fillColor=white');
graph.setSelectionCell(cell)
selectionChanged(graph)
// if (cells != null && cells.length > 0)
// {
// graph.scrollCellToVisible(cells[0]);
// graph.setSelectionCells(cells);
// }
};
// Creates a DOM node that acts as the drag source
// var div = document.createElement('div')
// div.style.width = '80px';
// div.style.height = '30px';
// div.style.backgroundColor='pink';
// document.body.appendChild(div);
// Disables built-in DnD in IE (this is needed for cross-frame DnD, see below)
if (mxClient.IS_IE)
{
mxEvent.addListener(img, 'dragstart', function(evt)
{
evt.returnValue = false;
});
}
// Creates the element that is being for the actual preview.
var dragElt = document.createElement('div');
dragElt.style.border = 'dashed black 1px';
dragElt.style.width = '120px';
dragElt.style.height = '40px';
tasksDrag = document.querySelectorAll('.sidebar .task')
Array.prototype.slice.call(tasksDrag).forEach(ele => {
const value = ele.getAttribute('data-title')
let ds = mxUtils.makeDraggable(ele, graphF, (graph, evt, target, x, y) => funct(graph, evt, target, x, y, value), dragElt, null, null, graph.autoscroll, true);
ds.isGuidesEnabled = function() {
return graph.graphHandler.guidesEnabled;
};
ds.createDragElement = mxDragSource.prototype.createDragElement;
})
// Function to create the entries in the popupmenu
function createPopupMenu(graph, menu, cell, evt) {
if (cell) {
if (cell.edge === true) {
menu.addItem('Delete', null, function() {
graph.removeCells([cell]);
mxEvent.consume(evt);
});
} else {
menu.addItem('Edit', null, function() {
// mxUtils.alert('Edit: ');
selectionChanged(graph)
})
menu.addItem('Delete', null, function() {
graph.removeCells([cell]);
mxEvent.consume(evt);
});
}
}
};
// load json
var dataModel = json;
render(JSON.parse(dataModel), graph);
// Drag source is configured to use dragElt for preview and as drag icon
// if scalePreview (last) argument is true. Dx and dy are null to force
// the use of the defaults. Note that dx and dy are only used for the
// drag icon but not for the preview.
// Redirects feature to global switch. Note that this feature should only be used
// if the the x and y arguments are used in funct to insert the cell.
// Restores original drag icon while outside of graph
}
};
// NOTE: To enable cross-document DnD (eg. between frames),
// the following methods need to be overridden:
/*mxDragSourceMouseUp = mxDragSource.prototype.mouseUp;
mxDragSource.prototype.mouseUp = function(evt)
{
var doc = this.element.ownerDocument;
if (doc != document)
{
var mu = (mxClient.IS_TOUCH) ? 'touchend' : 'mouseup';
if (this.mouseUpHandler != null)
{
mxEvent.removeListener(doc, mu, this.mouseUpHandler);
}
}
mxDragSourceMouseUp.apply(this, arguments);
};*/
/*mxDragSourceMouseDown = mxDragSource.prototype.mouseDown;
mxDragSource.prototype.mouseDown = function(evt)
{
if (this.enabled && !mxEvent.isConsumed(evt))
{
mxDragSourceMouseDown.apply(this, arguments);
var doc = this.element.ownerDocument;
if (doc != document)
{
var mu = (mxClient.IS_TOUCH) ? 'touchend' : 'mouseup';
mxEvent.addListener(doc, mu, this.mouseUpHandler);
}
}
};*/
</script>
</head>
<!-- Page passes the container for the graph to the program -->
<body onload="main();">
<ul class="sidebar">
<li class="title" data-title="Task node" data-value="Task node">
Task node
</li>
<li class="task" data-title="Kafka->HDFS" data-value="Channel task">
Channel task
</li>
<li class="task" data-title="A/B test task" data-value="A/B test task">
A/Btest task
</li>
<li class="task" data-title="Hive->Email" data-value="Report task">
Report Task
</li>
<li class="task" data-title="Hive->Hive" data-value="HSQL task">
HSQL task
</li>
<li class="task" data-title="shell task" data-value="shell task">
shell task
</li>
<li id="layout123">layout</li>
</ul>
<div class="toolbar"></div>
<div class="container"></div>
<div class="changeInput" style="z-index: 10;"></div>
</body>
</html>