gojs
Version:
Interactive diagrams, charts, and graphs, such as trees, flowcharts, orgcharts, UML, BPMN, or business diagrams
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HTML
<html>
<head>
<meta charset="UTF-8">
<title>HTMLInfo Text Editor</title>
<meta name="description" content="A re-implementation of the default text editor, implemented by the TextEditor extension." />
<meta name="viewport" content="width=device-width, initial-scale=1">
<!-- Copyright 1998-2020 by Northwoods Software Corporation. -->
<script src="../release/go.js"></script>
<script src="TextEditor.js"></script>
<script src="../assets/js/goSamples.js"></script> <!-- this is only for the GoJS Samples framework -->
<script id="code">
function init() {
if (window.goSamples) goSamples(); // init for these samples -- you don't need to call this
var $ = go.GraphObject.make; // for conciseness in defining templates
myDiagram = $(go.Diagram, "myDiagramDiv", // create a Diagram for the DIV HTML element
{
"undoManager.isEnabled": true // enable undo & redo
});
myDiagram.toolManager.textEditingTool.defaultTextEditor = window.TextEditor;
// this predicate is true if the new string has at least three characters
// and has a vowel in it
function okName(textblock, oldstr, newstr) {
return newstr.length >= 3 && /[aeiouy]/i.test(newstr);
};
// define a simple Node template
myDiagram.nodeTemplate =
$(go.Node, "Auto", // the Shape will go around the TextBlock
$(go.Shape, "RoundedRectangle", { strokeWidth: 0 },
new go.Binding("fill", "color")),
$(go.TextBlock,
{ margin: 8, editable: true, textValidation: okName }, // some room around the text
new go.Binding("text", "key"))
);
myDiagram.model = new go.GraphLinksModel(
[
{ key: "Alpha", color: "lightblue" },
{ key: "Beta", color: "orange" },
{ key: "Gamma", color: "lightgreen" },
{ key: "Delta", color: "pink" }
],
[
{ from: "Alpha", to: "Beta" },
{ from: "Alpha", to: "Gamma" },
{ from: "Beta", to: "Beta" },
{ from: "Gamma", to: "Delta" },
{ from: "Delta", to: "Alpha" }
]);
}
</script>
</head>
<body onload="init()">
<div id="sample">
<!-- The DIV for the Diagram needs an explicit size or else we won't see anything.
Also add a border to help see the edges. -->
<div id="myDiagramDiv" style="border: solid 1px black; width:400px; height:400px"></div>
<p>This sample constructs an <a>HTMLInfo</a> that acts as a re-implementation of the default text editor.
<p>The implementation is contained in the file <a href="TextEditor.js" target="_blank">TextEditor.js</a>
and exposes <code>window.TextEditor</code>,
which is used in this file as the value of <code>myDiagram.toolManager.textEditingTool.defaultTextEditor</code>.
<p>This also adds a text validation predicate, <code>okName</code>, as the <a>TextBlock.textValidation</a> property.
That predicate makes sure that the new string has at least three characters and contains a vowel.
<p>You can see additional custom text editors in the <a href="../samples/customTextEditingTool.html">Custom TextEditingTool sample</a>.
</div>
</body>
</html>