import 'bootstrap.css';
import '@mescius/wijmo.styles/wijmo.css';
import './styles.css';
import { FlexGrid } from '@mescius/wijmo.grid';
import { EditHighlighter } from './edit-highlighter';
document.readyState === 'complete' ? init() : window.onload = init;
function init() {
// create the grid
var theGrid = new FlexGrid('#theGrid', {
itemsSource: getData()
});
// create the EditHighlighter
new EditHighlighter(theGrid, 'cell-changed');
// create some random data
function getData() {
var data = [];
var countries = 'US,Germany,UK,Japan,Italy,Greece'.split(',');
for (var i = 0; i < countries.length; i++) {
data.push({
id: i,
country: countries[i],
sales: Math.random() * 10000,
expenses: Math.random() * 5000,
overdue: i % 4 == 0
});
}
return data;
}
}
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>MESCIUS Wijmo FlexGrid Editing</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<!-- SystemJS -->
<script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.21.5/system.src.js" integrity="sha512-skZbMyvYdNoZfLmiGn5ii6KmklM82rYX2uWctBhzaXPxJgiv4XBwJnFGr5k8s+6tE1pcR1nuTKghozJHyzMcoA==" crossorigin="anonymous"></script>
<script src="systemjs.config.js"></script>
<script>
System.import('./src/app');
</script>
</head>
<body>
<div class="container-fluid">
<div id="theGrid"></div>
</div>
</body>
</html>
.wj-flexgrid {
max-height: 220px;
margin: 10px;
}
.wj-flexgrid .cell-changed {
background-color: lightpink;
}
body {
margin-bottom: 24px;
}
import { isUndefined, isDate, toggleClass } from '@mescius/wijmo';
/**
* Class that highlights cells that have been edited in a FlexGrid.
*/
export class EditHighlighter {
/**
* Initializes a new instance of the {@link EditHighlighter} class.
*
* @param grid FlexGrid to highlight.
* @param cssClass Class name to apply to changed cells.
*/
constructor(grid, cssClass) {
this._originalValues = new Map();
this._grid = grid;
let cellChanging = this._cellChanging.bind(this), cellChanged = this._cellChanged.bind(this);
grid.beginningEdit.addHandler(cellChanging);
grid.cellEditEnded.addHandler(cellChanged);
grid.pastingCell.addHandler(cellChanging);
grid.pastedCell.addHandler(cellChanged);
grid.formatItem.addHandler((s, e) => {
if (e.panel == s.cells) {
let changed = this._hasChange(e.getRow().dataItem, e.getColumn().binding);
toggleClass(e.cell, 'cell-changed', changed);
}
});
}
/**
* Clears all the changes and removes all highlights.
*/
clearChanges() {
this._originalValues.clear();
this._grid.invalidate();
}
// checks whether a cell has changed
_hasChange(item, binding) {
item = this._originalValues.get(item);
return item != null && !isUndefined(item[binding]);
}
// handles cell changing (edit or paste)
_cellChanging(s, e) {
this._originalValue = s.getCellData(e.row, e.col, false);
}
// handles cell changed (edit or paste)
_cellChanged(s, e) {
let newValue = s.getCellData(e.row, e.col, false);
this._storeChange(e.getRow().dataItem, e.getColumn().binding, this._originalValue, newValue);
}
// store a change into the _originalValues map
_storeChange(item, binding, originalValue, newValue) {
// get the item with the original values
let editItem = this._originalValues.get(item);
if (editItem == null) {
editItem = {};
this._originalValues.set(item, editItem);
}
// get the original value from the item if possible
let editValue = editItem[binding];
if (!isUndefined(editValue)) {
originalValue = editValue;
}
// store or clear the change
if (this._sameValue(originalValue, newValue)) {
delete editItem[binding];
if (Object.keys(editItem).length == 0) {
this._originalValues.delete(item);
}
}
else {
editItem[binding] = originalValue;
}
}
// compare two values taking dates into account
_sameValue(item1, item2) {
if (item1 === item2) {
return true;
}
if (isDate(item1) && isDate(item2)) {
return item1.getTime() == item2.getTime();
}
return false;
}
}
(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',
'@mescius/wijmo': 'npm:@mescius/wijmo/index.js',
'@mescius/wijmo.input': 'npm:@mescius/wijmo.input/index.js',
'@mescius/wijmo.styles': 'npm:@mescius/wijmo.styles',
'@mescius/wijmo.cultures': 'npm:@mescius/wijmo.cultures',
'@mescius/wijmo.chart': 'npm:@mescius/wijmo.chart/index.js',
'@mescius/wijmo.chart.analytics': 'npm:@mescius/wijmo.chart.analytics/index.js',
'@mescius/wijmo.chart.animation': 'npm:@mescius/wijmo.chart.animation/index.js',
'@mescius/wijmo.chart.annotation': 'npm:@mescius/wijmo.chart.annotation/index.js',
'@mescius/wijmo.chart.finance': 'npm:@mescius/wijmo.chart.finance/index.js',
'@mescius/wijmo.chart.finance.analytics': 'npm:@mescius/wijmo.chart.finance.analytics/index.js',
'@mescius/wijmo.chart.hierarchical': 'npm:@mescius/wijmo.chart.hierarchical/index.js',
'@mescius/wijmo.chart.interaction': 'npm:@mescius/wijmo.chart.interaction/index.js',
'@mescius/wijmo.chart.radar': 'npm:@mescius/wijmo.chart.radar/index.js',
'@mescius/wijmo.chart.render': 'npm:@mescius/wijmo.chart.render/index.js',
'@mescius/wijmo.chart.webgl': 'npm:@mescius/wijmo.chart.webgl/index.js',
'@mescius/wijmo.chart.map': 'npm:@mescius/wijmo.chart.map/index.js',
'@mescius/wijmo.gauge': 'npm:@mescius/wijmo.gauge/index.js',
'@mescius/wijmo.grid': 'npm:@mescius/wijmo.grid/index.js',
'@mescius/wijmo.grid.detail': 'npm:@mescius/wijmo.grid.detail/index.js',
'@mescius/wijmo.grid.filter': 'npm:@mescius/wijmo.grid.filter/index.js',
'@mescius/wijmo.grid.search': 'npm:@mescius/wijmo.grid.search/index.js',
'@mescius/wijmo.grid.grouppanel': 'npm:@mescius/wijmo.grid.grouppanel/index.js',
'@mescius/wijmo.grid.multirow': 'npm:@mescius/wijmo.grid.multirow/index.js',
'@mescius/wijmo.grid.transposed': 'npm:@mescius/wijmo.grid.transposed/index.js',
'@mescius/wijmo.grid.transposedmultirow': 'npm:@mescius/wijmo.grid.transposedmultirow/index.js',
'@mescius/wijmo.grid.pdf': 'npm:@mescius/wijmo.grid.pdf/index.js',
'@mescius/wijmo.grid.sheet': 'npm:@mescius/wijmo.grid.sheet/index.js',
'@mescius/wijmo.grid.xlsx': 'npm:@mescius/wijmo.grid.xlsx/index.js',
'@mescius/wijmo.grid.selector': 'npm:@mescius/wijmo.grid.selector/index.js',
'@mescius/wijmo.grid.cellmaker': 'npm:@mescius/wijmo.grid.cellmaker/index.js',
'@mescius/wijmo.nav': 'npm:@mescius/wijmo.nav/index.js',
'@mescius/wijmo.odata': 'npm:@mescius/wijmo.odata/index.js',
'@mescius/wijmo.olap': 'npm:@mescius/wijmo.olap/index.js',
'@mescius/wijmo.rest': 'npm:@mescius/wijmo.rest/index.js',
'@mescius/wijmo.pdf': 'npm:@mescius/wijmo.pdf/index.js',
'@mescius/wijmo.pdf.security': 'npm:@mescius/wijmo.pdf.security/index.js',
'@mescius/wijmo.viewer': 'npm:@mescius/wijmo.viewer/index.js',
'@mescius/wijmo.xlsx': 'npm:@mescius/wijmo.xlsx/index.js',
'@mescius/wijmo.undo': 'npm:@mescius/wijmo.undo/index.js',
'@mescius/wijmo.interop.grid': 'npm:@mescius/wijmo.interop.grid/index.js',
'@mescius/wijmo.touch': 'npm:@mescius/wijmo.touch/index.js',
'@mescius/wijmo.cloud': 'npm:@mescius/wijmo.cloud/index.js',
'@mescius/wijmo.barcode': 'npm:@mescius/wijmo.barcode/index.js',
'@mescius/wijmo.barcode.common': 'npm:@mescius/wijmo.barcode.common/index.js',
'@mescius/wijmo.barcode.composite': 'npm:@mescius/wijmo.barcode.composite/index.js',
'@mescius/wijmo.barcode.specialized': 'npm:@mescius/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);
