import 'bootstrap.css';
import '@grapecity/wijmo.styles/wijmo.css';
import './styles.css';
import * as wjNav from '@grapecity/wijmo.nav';
import { getData } from './data';
//
document.readyState === 'complete' ? init() : window.onload = init;
//
function init() {
let cbDragParents = document.querySelector('#allowDraggingParentNodes');
let cbDropIntoEmpty = document.querySelector('#allowDroppingIntoEmpty');
//
// create the tree
let tree = new wjNav.TreeView('#theTree', {
itemsSource: getData(),
displayMemberPath: 'header',
childItemsPath: 'items',
showCheckboxes: true,
imageMemberPath: 'img',
allowDragging: true,
//
// use the dragStart event to honor the allowDraggingParentNodes setting
// by setting the 'cancel' event parameter to true
dragStart: (s, e) => {
if (e && e.node && e.node.hasChildren) {
if (!cbDragParents.checked) {
e.cancel = true; // prevent dragging parent nodes
}
else {
e.node.isCollapsed = true; // collapse parent nodes when dragging
}
}
},
//
// use the dragOver event to honor the allowDroppingIntoEmpty setting
// by changing the 'position' event parameter to 'Before'
dragOver: (s, e) => {
if (!cbDropIntoEmpty.checked && !e.dropTarget.hasChildren && (e.position == wjNav.DropPosition.Into)) {
e.position = wjNav.DropPosition.Before;
}
}
});
//
// handle options
document.querySelector('#allowDragging').addEventListener('click', e => {
tree.allowDragging = e.target.checked;
});
}
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>MESCIUS Wijmo TreeView Drag and Drop</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<!-- SystemJS -->
<script src="node_modules/systemjs/dist/system.src.js"></script>
<script src="systemjs.config.js"></script>
<script>
System.import('./src/app');
</script>
</head>
<body>
<div class="container-fluid">
<label>
<input id="allowDragging" type="checkbox" checked="checked">
allow dragging
</label>
<br />
<label>
<input id="allowDraggingParentNodes" type="checkbox" checked="checked">
allow dragging parent nodes
</label>
<br />
<label>
<input id="allowDroppingIntoEmpty" type="checkbox" checked="checked">
allow dropping into empty nodes
</label>
<div id="theTree"></div>
</div>
</body>
</html>
export function getData() {
let imgUrl = 'resources/';
//
return [
{
header: 'Electronics',
img: imgUrl + 'electronics.png',
items: [
{ header: 'Trimmers/Shavers' },
{ header: 'Tablets' },
{
header: 'Phones',
img: imgUrl + 'phones.png',
items: [
{ header: 'Apple' },
{ header: 'Motorola', newItem: true },
{ header: 'Nokia' },
{ header: 'Samsung' }
]
},
{ header: 'Speakers', newItem: true },
{ header: 'Monitors' }
]
},
{
header: 'Toys',
img: imgUrl + 'toys.png',
items: [
{ header: 'Shopkins' },
{ header: 'Train Sets' },
{ header: 'Science Kit', newItem: true },
{ header: 'Play-Doh' },
{ header: 'Crayola' }
]
},
{
header: 'Home',
img: imgUrl + 'home.png',
items: [
{ header: 'Coffee Maker' },
{ header: 'Breadmaker', newItem: true },
{ header: 'Solar Panel', newItem: true },
{ header: 'Work Table' },
{ header: 'Propane Grill' }
]
}
];
}
/* default trees on this sample */
.wj-treeview {
display:block;
height: 350px;
font-size: 120%;
margin-top: 8px;
margin-bottom: 8px;
padding: 6px;
background: #f0f0f0;
box-shadow: 0 3px 6px rgba(0,0,0,0.16), 0 3px 6px rgba(0,0,0,0.23);
}
body {
margin-bottom: 24pt;
}
(function (global) {
System.config({
transpiler: 'plugin-babel',
babelOptions: {
es2015: true
},
meta: {
'*.css': { loader: 'css' }
},
paths: {
// paths serve as alias
'npm:': 'node_modules/'
},
// map tells the System loader where to look for things
map: {
'jszip': 'npm:jszip/dist/jszip.js',
'@grapecity/wijmo': 'npm:@grapecity/wijmo/index.js',
'@grapecity/wijmo.input': 'npm:@grapecity/wijmo.input/index.js',
'@grapecity/wijmo.styles': 'npm:@grapecity/wijmo.styles',
'@grapecity/wijmo.cultures': 'npm:@grapecity/wijmo.cultures',
'@grapecity/wijmo.chart': 'npm:@grapecity/wijmo.chart/index.js',
'@grapecity/wijmo.chart.analytics': 'npm:@grapecity/wijmo.chart.analytics/index.js',
'@grapecity/wijmo.chart.animation': 'npm:@grapecity/wijmo.chart.animation/index.js',
'@grapecity/wijmo.chart.annotation': 'npm:@grapecity/wijmo.chart.annotation/index.js',
'@grapecity/wijmo.chart.finance': 'npm:@grapecity/wijmo.chart.finance/index.js',
'@grapecity/wijmo.chart.finance.analytics': 'npm:@grapecity/wijmo.chart.finance.analytics/index.js',
'@grapecity/wijmo.chart.hierarchical': 'npm:@grapecity/wijmo.chart.hierarchical/index.js',
'@grapecity/wijmo.chart.interaction': 'npm:@grapecity/wijmo.chart.interaction/index.js',
'@grapecity/wijmo.chart.radar': 'npm:@grapecity/wijmo.chart.radar/index.js',
'@grapecity/wijmo.chart.render': 'npm:@grapecity/wijmo.chart.render/index.js',
'@grapecity/wijmo.chart.webgl': 'npm:@grapecity/wijmo.chart.webgl/index.js',
'@grapecity/wijmo.chart.map': 'npm:@grapecity/wijmo.chart.map/index.js',
'@grapecity/wijmo.gauge': 'npm:@grapecity/wijmo.gauge/index.js',
'@grapecity/wijmo.grid': 'npm:@grapecity/wijmo.grid/index.js',
'@grapecity/wijmo.grid.detail': 'npm:@grapecity/wijmo.grid.detail/index.js',
'@grapecity/wijmo.grid.filter': 'npm:@grapecity/wijmo.grid.filter/index.js',
'@grapecity/wijmo.grid.search': 'npm:@grapecity/wijmo.grid.search/index.js',
'@grapecity/wijmo.grid.grouppanel': 'npm:@grapecity/wijmo.grid.grouppanel/index.js',
'@grapecity/wijmo.grid.multirow': 'npm:@grapecity/wijmo.grid.multirow/index.js',
'@grapecity/wijmo.grid.transposed': 'npm:@grapecity/wijmo.grid.transposed/index.js',
'@grapecity/wijmo.grid.transposedmultirow': 'npm:@grapecity/wijmo.grid.transposedmultirow/index.js',
'@grapecity/wijmo.grid.pdf': 'npm:@grapecity/wijmo.grid.pdf/index.js',
'@grapecity/wijmo.grid.sheet': 'npm:@grapecity/wijmo.grid.sheet/index.js',
'@grapecity/wijmo.grid.xlsx': 'npm:@grapecity/wijmo.grid.xlsx/index.js',
'@grapecity/wijmo.grid.selector': 'npm:@grapecity/wijmo.grid.selector/index.js',
'@grapecity/wijmo.grid.cellmaker': 'npm:@grapecity/wijmo.grid.cellmaker/index.js',
'@grapecity/wijmo.nav': 'npm:@grapecity/wijmo.nav/index.js',
'@grapecity/wijmo.odata': 'npm:@grapecity/wijmo.odata/index.js',
'@grapecity/wijmo.olap': 'npm:@grapecity/wijmo.olap/index.js',
'@grapecity/wijmo.rest': 'npm:@grapecity/wijmo.rest/index.js',
'@grapecity/wijmo.pdf': 'npm:@grapecity/wijmo.pdf/index.js',
'@grapecity/wijmo.pdf.security': 'npm:@grapecity/wijmo.pdf.security/index.js',
'@grapecity/wijmo.viewer': 'npm:@grapecity/wijmo.viewer/index.js',
'@grapecity/wijmo.xlsx': 'npm:@grapecity/wijmo.xlsx/index.js',
'@grapecity/wijmo.undo': 'npm:@grapecity/wijmo.undo/index.js',
'@grapecity/wijmo.interop.grid': 'npm:@grapecity/wijmo.interop.grid/index.js',
'@grapecity/wijmo.touch': 'npm:@grapecity/wijmo.touch/index.js',
'@grapecity/wijmo.cloud': 'npm:@grapecity/wijmo.cloud/index.js',
'@grapecity/wijmo.barcode': 'npm:@grapecity/wijmo.barcode/index.js',
'@grapecity/wijmo.barcode.common': 'npm:@grapecity/wijmo.barcode.common/index.js',
'@grapecity/wijmo.barcode.composite': 'npm:@grapecity/wijmo.barcode.composite/index.js',
'@grapecity/wijmo.barcode.specialized': 'npm:@grapecity/wijmo.barcode.specialized/index.js',
'jszip': 'npm:jszip/dist/jszip.js',
'bootstrap.css': 'npm:bootstrap/dist/css/bootstrap.min.css',
'css': 'npm:systemjs-plugin-css/css.js',
'plugin-babel': 'npm:systemjs-plugin-babel/plugin-babel.js',
'systemjs-babel-build':'npm:systemjs-plugin-babel/systemjs-babel-browser.js'
},
// packages tells the System loader how to load when no filename and/or no extension
packages: {
src: {
defaultExtension: 'js'
},
"node_modules": {
defaultExtension: 'js'
},
}
});
})(this);
