当enableAccessibility为true时SpreadJS将启用辅助功能。
于此同时，SpreadJS能通过以下方式获得焦点。
1.当按下注册有moveToNextCellThenControl 或 selectNextControl, moveToPreviousCellThenControl 或 selectPreviousControl事件的Tab键或者Tab+Shift键时。
2.点击工作簿内元素。
3.调用工作簿的焦点方法。
此外，这些是常见操作系统的屏幕阅读器。
Windows操作系统的NVDA
Mac操作系统的VoiceOver
window.onload = function () {
var spread = new GC.Spread.Sheets.Workbook(_getElementById('ss'), { sheetCount: 1 });
initSpread(spread);
};
function initSpread(spread) {
spread.suspendPaint();
//enable accessibility
spread.options.enableAccessibility = true;
//set focus
spread.focus();
//change the commands related to Tab key, Shift key with Tab key
var commands = spread.commandManager();
//TAB
commands.register("moveToNextCellThenControl", GC.Spread.Sheets.Commands.moveToNextCellThenControl, GC.Spread.Commands.Key.tab, false, false, false, false);
//SHIFT+TAB
commands.register("moveToPreviousCellThenControl", GC.Spread.Sheets.Commands.moveToPreviousCellThenControl, GC.Spread.Commands.Key.tab, false, true, false, false);
var sheet = spread.getActiveSheet();
//set default row height and column width
sheet.defaults.rowHeight = 50;
sheet.defaults.colWidth = 150;
//set default horizontal alignment and vertical alignment
var defaultStyle = sheet.getDefaultStyle();
defaultStyle.hAlign = GC.Spread.Sheets.HorizontalAlign.center;
defaultStyle.vAlign = GC.Spread.Sheets.VerticalAlign.center;
sheet.setDefaultStyle(defaultStyle);
//bind data source
sheet.setDataSource(dataSource);
spread.resumePaint();
}
function _getElementById(id) {
return document.getElementById(id);
}
<!doctype html>
<html style="height:100%;font-size:14px;">
<head>
<meta charset="utf-8" />
<meta name="spreadjs culture" content="zh-cn" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<link rel="stylesheet" type="text/css"
href="$DEMOROOT$/zh/purejs/node_modules/@grapecity-software/spread-sheets/styles/gc.spread.sheets.excel2013white.css">
<script src="$DEMOROOT$/zh/purejs/node_modules/@grapecity-software/spread-sheets/dist/gc.spread.sheets.all.min.js"
type="text/javascript"></script>
<script src="$DEMOROOT$/spread/source/data/data.js" type="text/javascript"></script>
<script src="$DEMOROOT$/spread/source/js/license.js" type="text/javascript"></script>
<script
src="$DEMOROOT$/zh/purejs/node_modules/@grapecity-software/spread-sheets-resources-zh/dist/gc.spread.sheets.resources.zh.min.js"
type="text/javascript"></script>
<script src="app.js" type="text/javascript"></script>
<link rel="stylesheet" type="text/css" href="styles.css">
</head>
<body>
<div class="sample-tutorial">
<div id="ss" class="sample-spreadsheets"></div>
<div class="options-container">
<div class="option-row">
</div>
</div>
</div>
</body>
</html>
.sample-tutorial {
height: 100%;
overflow: hidden;
}
.sample-spreadsheets {
width: 100%;
height: 100%;
overflow: hidden;
float: left;
}
.options-container {
float: right;
width: 280px;
padding: 12px;
height: 100%;
box-sizing: border-box;
background: #fbfbfb;
overflow: auto;
}
.option-row {
font-size: 14px;
padding: 5px;
margin-top: 10px;
}
body {
position: absolute;
top: 0;
bottom: 0;
left: 0;
right: 0;
}
