gojs
Version:
Interactive diagrams, charts, and graphs, such as trees, flowcharts, orgcharts, UML, BPMN, or business diagrams
267 lines (247 loc) • 12.4 kB
HTML
<html lang="en">
<head>
<meta charset="utf-8"/>
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no, viewport-fit=cover"/>
<meta name="description" content="Support selecting ports within nodes."/>
<link rel="stylesheet" href="../assets/css/style.css"/>
<!-- Copyright 1998-2023 by Northwoods Software Corporation. -->
<title>Selectable Ports</title>
</head>
<body>
<!-- This top nav is not part of the sample code -->
<nav id="navTop" class="w-full z-30 top-0 text-white bg-nwoods-primary">
<div class="w-full container max-w-screen-lg mx-auto flex flex-wrap sm:flex-nowrap items-center justify-between mt-0 py-2">
<div class="md:pl-4">
<a class="text-white hover:text-white no-underline hover:no-underline
font-bold text-2xl lg:text-4xl rounded-lg hover:bg-nwoods-secondary " href="../">
<h1 class="my-0 p-1 ">GoJS</h1>
</a>
</div>
<button id="topnavButton" class="rounded-lg sm:hidden focus:outline-none focus:ring" aria-label="Navigation">
<svg fill="currentColor" viewBox="0 0 20 20" class="w-6 h-6">
<path id="topnavOpen" fill-rule="evenodd" d="M3 5a1 1 0 011-1h12a1 1 0 110 2H4a1 1 0 01-1-1zM3 10a1 1 0 011-1h12a1 1 0 110 2H4a1 1 0 01-1-1zM9 15a1 1 0 011-1h6a1 1 0 110 2h-6a1 1 0 01-1-1z" clip-rule="evenodd"></path>
<path id="topnavClosed" class="hidden" fill-rule="evenodd" d="M4.293 4.293a1 1 0 011.414 0L10 8.586l4.293-4.293a1 1 0 111.414 1.414L11.414 10l4.293 4.293a1 1 0 01-1.414 1.414L10 11.414l-4.293 4.293a1 1 0 01-1.414-1.414L8.586 10 4.293 5.707a1 1 0 010-1.414z" clip-rule="evenodd"></path>
</svg>
</button>
<div id="topnavList" class="hidden sm:block items-center w-auto mt-0 text-white p-0 z-20">
<ul class="list-reset list-none font-semibold flex justify-end flex-wrap sm:flex-nowrap items-center px-0 pb-0">
<li class="p-1 sm:p-0"><a class="topnav-link" href="../learn/">Learn</a></li>
<li class="p-1 sm:p-0"><a class="topnav-link" href="../samples/">Samples</a></li>
<li class="p-1 sm:p-0"><a class="topnav-link" href="../intro/">Intro</a></li>
<li class="p-1 sm:p-0"><a class="topnav-link" href="../api/">API</a></li>
<li class="p-1 sm:p-0"><a class="topnav-link" href="https://www.nwoods.com/products/register.html">Register</a></li>
<li class="p-1 sm:p-0"><a class="topnav-link" href="../download.html">Download</a></li>
<li class="p-1 sm:p-0"><a class="topnav-link" href="https://forum.nwoods.com/c/gojs/11">Forum</a></li>
<li class="p-1 sm:p-0"><a class="topnav-link" href="https://www.nwoods.com/contact.html"
target="_blank" rel="noopener" onclick="getOutboundLink('https://www.nwoods.com/contact.html', 'contact');">Contact</a></li>
<li class="p-1 sm:p-0"><a class="topnav-link" href="https://www.nwoods.com/sales/index.html"
target="_blank" rel="noopener" onclick="getOutboundLink('https://www.nwoods.com/sales/index.html', 'buy');">Buy</a></li>
</ul>
</div>
</div>
<hr class="border-b border-gray-600 opacity-50 my-0 py-0" />
</nav>
<div class="md:flex flex-col md:flex-row md:min-h-screen w-full max-w-screen-xl mx-auto">
<div id="navSide" class="flex flex-col w-full md:w-48 text-gray-700 bg-white flex-shrink-0"></div>
<!-- * * * * * * * * * * * * * -->
<!-- Start of GoJS sample code -->
<script src="../release/go.js"></script>
<div id="allSampleContent" class="p-4 w-full">
<script id="code">
function init() {
// Since 2.2 you can also author concise templates with method chaining instead of GraphObject.make
// For details, see https://gojs.net/latest/intro/buildingObjects.html
const $ = go.GraphObject.make;
myDiagram =
new go.Diagram("myDiagramDiv",
{
// For this sample, automatically show the state of the diagram's model on the page
"ModelChanged": e => {
if (e.isTransactionFinished) showModel();
},
"undoManager.isEnabled": true
});
const UnselectedBrush = "lightgray"; // item appearance, if not "selected"
const SelectedBrush = "dodgerblue"; // item appearance, if "selected"
function isPortSelected(item) {
return item && item.fill !== UnselectedBrush; // assume the port is a Shape
}
function setPortSelected(item, sel) {
if (!item) return;
if (sel) {
item.fill = SelectedBrush;
} else {
item.fill = UnselectedBrush;
}
}
function onPortClick(e, tb) {
var shape = tb.panel.findObject("SHAPE");
if (shape !== null) {
var oldskips = shape.diagram.skipsUndoManager;
shape.diagram.skipsUndoManager = true;
if (e.control || e.meta) {
setPortSelected(shape, !isPortSelected(shape));
shape.part.isSelected = shape.part.ports.any(isPortSelected);
} else if (e.shift) {
// alternative policy: select all Ports between this item and some other one??
if (!isPortSelected(shape)) setPortSelected(shape, true);
shape.part.isSelected = true;
} else {
if (!isPortSelected(shape)) {
// deselect all sibling items
shape.part.ports.each(it => {
if (it !== shape) setPortSelected(it, false);
});
setPortSelected(shape, true);
}
shape.part.isSelected = true;
}
shape.diagram.skipsUndoManager = oldskips;
}
}
function makeItemTemplate(leftside) {
return $(go.Panel, "Auto",
{ margin: new go.Margin(1, 0) }, // some space between ports
$(go.Shape,
{
name: "SHAPE",
fill: UnselectedBrush, stroke: "gray",
geometryString: "F1 m 0,0 l 5,0 1,4 -1,4 -5,0 1,-4 -1,-4 z",
spot1: new go.Spot(0, 0, 5, 1), // keep the text inside the shape
spot2: new go.Spot(1, 1, -5, 0),
// some port-related properties
toSpot: go.Spot.Left,
toLinkable: leftside,
fromSpot: go.Spot.Right,
fromLinkable: !leftside,
cursor: "pointer"
},
new go.Binding("portId", "name")),
$(go.TextBlock,
new go.Binding("text", "name"),
{ // allow the user to select items -- the background color indicates whether "selected"
isActionable: true,
click: onPortClick
})
);
}
myDiagram.nodeTemplate =
$(go.Node, "Spot",
{ selectionAdorned: false },
{ locationSpot: go.Spot.Center, locationObjectName: "BODY" },
new go.Binding("location", "loc", go.Point.parse).makeTwoWay(go.Point.stringify),
$(go.Panel, "Auto",
{ name: "BODY" },
$(go.Shape, "RoundedRectangle",
{ stroke: "gray", strokeWidth: 2, fill: "transparent" },
new go.Binding("stroke", "isSelected", b => b ? SelectedBrush : UnselectedBrush).ofObject()),
$(go.Panel, "Vertical",
{ margin: 6 },
$(go.TextBlock,
new go.Binding("text", "name"),
{ alignment: go.Spot.Left }),
$(go.Picture, "images/60x90.png",
{ width: 30, height: 45, margin: new go.Margin(10, 10) })
)
),
$(go.Panel, "Vertical",
{ name: "LEFTPORTS", alignment: new go.Spot(0, 0.5, 0, 7) },
new go.Binding("itemArray", "inservices"),
{ itemTemplate: makeItemTemplate(true) }
),
$(go.Panel, "Vertical",
{ name: "RIGHTPORTS", alignment: new go.Spot(1, 0.5, 0, 7) },
new go.Binding("itemArray", "outservices"),
{ itemTemplate: makeItemTemplate(false) }
)
);
myDiagram.linkTemplate =
$(go.Link,
{ routing: go.Link.Orthogonal, corner: 10, toShortLength: -3 },
{ relinkableFrom: true, relinkableTo: true, reshapable: true, resegmentable: true },
$(go.Shape, { stroke: "gray", strokeWidth: 2.5 })
);
function findAllSelectedItems() {
var items = [];
for (var nit = myDiagram.nodes; nit.next();) {
var node = nit.value;
//?? Maybe this should only return selected items that are within selected Nodes
//if (!node.isSelected) continue;
node.ports.each(port => {
if (isPortSelected(port)) items.push(port.findBindingPanel());
});
}
return items;
}
// Override the standard CommandHandler deleteSelection and canDeleteSelection behavior.
// If there are any selected items, delete them instead of deleting any selected nodes or links.
myDiagram.commandHandler.canDeleteSelection = function() { // method override must be function, not =>
// true if there are any selected deletable nodes or links,
// or if there are any selected items within nodes
return go.CommandHandler.prototype.canDeleteSelection.call(this) ||
findAllSelectedItems().length > 0;
};
myDiagram.commandHandler.deleteSelection = function() { // method override must be function, not =>
var items = findAllSelectedItems();
if (items.length > 0) { // if there are any selected items, delete them
myDiagram.startTransaction("delete items");
for (var i = 0; i < items.length; i++) {
var item = items[i];
var nodedata = item.part.data;
var itemdata = item.data;
// find the item array that the item data is in; try "inservices" first
var itemarray = nodedata.inservices;
var itemindex = itemarray.indexOf(itemdata);
if (itemindex < 0) { // otherwise try "outservices"
itemarray = nodedata.outservices;
itemindex = itemarray.indexOf(itemdata);
}
if (itemindex >= 0) {
myDiagram.model.removeArrayItem(itemarray, itemindex);
}
}
myDiagram.commitTransaction("delete items");
} else { // otherwise just delete nodes and/or links, as usual
go.CommandHandler.prototype.deleteSelection.call(this);
}
};
myDiagram.model =
new go.GraphLinksModel(
{
copiesArrays: true,
copiesArrayObjects: true,
linkFromPortIdProperty: "fromPort",
linkToPortIdProperty: "toPort",
nodeDataArray: [
{ key: 1, name: "Server", inservices: [{ name: "s1" }, { name: "s2" }], outservices: [{ name: "o1" }], loc: "0 0" },
{ key: 2, name: "Other", inservices: [{ name: "s1" }, { name: "s2" }], loc: "200 60" }
],
linkDataArray: [
{ from: 1, fromPort: "o1", to: 2, toPort: "s2" }
]
});
showModel();
function showModel() {
document.getElementById("mySavedModel").value = myDiagram.model.toJson();
}
}
window.addEventListener('DOMContentLoaded', init);
</script>
<div id="sample">
<div id="myDiagramDiv" style="border: solid 1px black; width:100%; height:600px"></div>
<p>
Click on a port to toggle its selection.
The Delete command will only delete selected ports, if there are any; otherwise it will delete Nodes and Links as it normally would.
</p>
<p>The model data, automatically updated after each change or undo or redo:</p>
<textarea id="mySavedModel" style="width:100%;height:300px"></textarea>
</div>
</div>
<!-- * * * * * * * * * * * * * -->
<!-- End of GoJS sample code -->
</div>
</body>
<!-- This script is part of the gojs.net website, and is not needed to run the sample -->
<script src="../assets/js/goSamples.js"></script>
</html>