SpreadJS 提供的导航操作定义在 GC.Spread.Sheets.Commands 中。
moveToNextCell:移动到下一个单元格(默认操作是按下 Tab 键)。
moveToPreviousCell: 移动到前一个单元格（默认操作是同时按下 Shift 键和 Tab 键）。
selectNextControl: 选中 spread.nextControl 所指定的元素。如果没有设置，则自动检测。
selectPreviousControl:选中 spread.previousControl 所指定的元素。如果没有设置，则自动检测。
moveToNextCellThenControl: 移动到下一个单元格时，如果有活动单元格是最后一个可见的单元格，则选中下一个控件。
moveToPreviousCellThenControl: 移动到前一个单元格时，如果有活动单元格是第一个可见的单元格，则选中前一个控件。
通过 nextControl 和 previousControl 方法来设置选择控件。例如：
调用 register 方法来设置导航键和相应的操作。例如：
register 方法的参数列举如下：
name: 操作的名称。
execute: 操作的执行函数。
key: 按键的 Unicode 编码。
ctrl: 按下 Ctrl 键时为 true,否则为 false。
shift: 按下 Shift 键时为 true，否则为 false。
alt: 按下 Alt 键时为 true，否则为 false。
meta: 按下 Macintosh 设备上的 Command 键或者 Windows 设备上的 Windows 键时为 true,否则为false。
当 Spread 失去焦点时，调用 hideSelection 方法来隐藏选择效果。例如：
window.onload = function () {
var spread = new GC.Spread.Sheets.Workbook(document.getElementById("ss"), { sheetCount: 1 });
initSpread(spread);
};
function initSpread(spread) {
var sheet = spread.getSheet(0);
spread.suspendPaint();
sheet.setRowCount(20);
sheet.setColumnCount(10);
sheet.addSpan(0, 0, 1, 7);
sheet.setValue(0, 0, "按下 \'Tab\' 或 \'Shift + Tab\' 键，选区将相应移动。");
for (var i = 1; i < 20; i += 3) {
for (var j = 1; j < 20; j += 3) {
sheet.setValue(i, j, "测试");
}
}
spread.resumePaint();
var commandManager = spread.commandManager();
_getElementById("preButton").addEventListener('click', _alertHandle);
_getElementById("nextButton").addEventListener('click', _alertHandle);
function _alertHandle() {
alert(this.value);
}
_getElementById("tabAction").addEventListener('change', _moveHandle);
_getElementById("shiftTabAction").addEventListener('change', _moveHandle);
function _moveHandle() {
var id = this.id, isShift = id.indexOf("shift") === 0,
value = parseInt(this.value, 10),
actions = GC.Spread.Sheets.Commands,
action;
switch (value) {
case 0:
action = isShift ? actions.moveToPreviousCell : actions.moveToNextCell;
break;
case 1:
action = isShift ? actions.selectPreviousControl : actions.selectNextControl;
break;
case 2:
action = isShift ? actions.moveToPreviousCellThenControl : actions.moveToNextCellThenControl;
break;
}
if (action) {
commandManager.register("customCommand" + new Date().valueOf(), action, GC.Spread.Commands.Key.tab, false, isShift, false, false);
}
}
_getElementById("nextControl").addEventListener('change', _handle);
_getElementById("preControl").addEventListener('change', _handle);
function _handle() {
var id = this.id, isPre = id.indexOf("pre") === 0,
value = this.value,
control = value ? document.getElementById(value) : undefined;
if (isPre) {
spread.previousControl(control);
} else {
spread.nextControl(control);
}
}
_getElementById("hideSelection").addEventListener('click', function () {
spread.options.hideSelection = this.checked;
});
function customSelectLeft(workbook, options) {
var sheet = workbook.getSheetFromName(options.sheetName);
var activeRowIndex = sheet.getActiveRowIndex();
var activeColIndex = sheet.getActiveColumnIndex();
var selNeedAdjust = getNeedAdjustSelection(sheet.getSelections(), activeRowIndex, activeColIndex);
var findFirstNotNullColIndex = function (sheet, fixRow, offset, stop) {
while (offset > stop) {
if (sheet.getValue(fixRow, offset) !== null) {
break;
}
offset--;
}
return offset;
}
var rangeChangeSmall = selNeedAdjust.col === activeColIndex && selNeedAdjust.colCount > 1 ? true : false;
var stopSearchIndex = rangeChangeSmall ? activeColIndex : 0;
var startSearchIndex = rangeChangeSmall ? selNeedAdjust.col + selNeedAdjust.colCount - 1 - 1 : selNeedAdjust.col - 1;
var findResult = findFirstNotNullColIndex(sheet, activeRowIndex, startSearchIndex, stopSearchIndex);
if (selNeedAdjust !== null && findResult >= 0) {
selNeedAdjust.colCount = rangeChangeSmall ? findResult - selNeedAdjust.col + 1 : selNeedAdjust.col - findResult + selNeedAdjust.colCount;
selNeedAdjust.col = rangeChangeSmall ? selNeedAdjust.col : findResult;
sheet.repaint();
}
}
function customSelectRight(workbook, options) {
var sheet = workbook.getSheetFromName(options.sheetName);
var activeRowIndex = sheet.getActiveRowIndex();
var activeColIndex = sheet.getActiveColumnIndex();
var sheetColCount = sheet.getColumnCount();
var selNeedAdjust = getNeedAdjustSelection(sheet.getSelections(), activeRowIndex, activeColIndex);
var findNextNotNullColIndex = function (sheet, fixRow, offset, stop) {
while (offset < stop) {
if (sheet.getValue(fixRow, offset) !== null) {
break;
}
offset++;
}
return offset;
}
var rangeChangeSmall = selNeedAdjust.col + selNeedAdjust.colCount - 1 === activeColIndex && selNeedAdjust.colCount > 1 ? true : false;
var stopSearchIndex = rangeChangeSmall ? activeColIndex : sheetColCount;
var startSearchIndex = rangeChangeSmall ? selNeedAdjust.col + 1 : selNeedAdjust.col + selNeedAdjust.colCount;
var findResult = findNextNotNullColIndex(sheet, activeRowIndex, startSearchIndex, stopSearchIndex);
if (selNeedAdjust !== null && findResult <= sheetColCount) {
selNeedAdjust.colCount = rangeChangeSmall ? selNeedAdjust.colCount + selNeedAdjust.col - findResult : findResult - selNeedAdjust.col + 1;
selNeedAdjust.col = rangeChangeSmall ? findResult : selNeedAdjust.col;
sheet.repaint();
}
}
function customSelectUp(workbook, options) {
var sheet = workbook.getSheetFromName(options.sheetName);
var activeRowIndex = sheet.getActiveRowIndex();
var activeColIndex = sheet.getActiveColumnIndex();
var selNeedAdjust = getNeedAdjustSelection(sheet.getSelections(), activeRowIndex, activeColIndex);
var findFirstNotNullRowIndex = function (sheet, fixCol, offset, stop) {
while (offset > stop) {
if (sheet.getValue(offset, fixCol) !== null) {
break;
}
offset--;
}
return offset;
}
var rangeChangeSmall = selNeedAdjust.row === activeRowIndex && selNeedAdjust.rowCount > 1 ? true : false;
var stopSearchIndex = rangeChangeSmall ? activeRowIndex : 0;
var startSearchIndex = rangeChangeSmall ? selNeedAdjust.row + selNeedAdjust.rowCount - 1 - 1 : selNeedAdjust.row - 1;
var findResult = findFirstNotNullRowIndex(sheet, activeColIndex, startSearchIndex, stopSearchIndex);
if (selNeedAdjust !== null && findResult >= 0) {
selNeedAdjust.rowCount = rangeChangeSmall ? findResult - selNeedAdjust.row + 1 : selNeedAdjust.row - findResult + selNeedAdjust.rowCount;
selNeedAdjust.row = rangeChangeSmall ? selNeedAdjust.row : findResult;
sheet.repaint();
}
}
function customSelectDown(workbook, options) {
var sheet = workbook.getSheetFromName(options.sheetName);
var activeRowIndex = sheet.getActiveRowIndex();
var activeColIndex = sheet.getActiveColumnIndex();
var sheetRowCount = sheet.getRowCount();
var selNeedAdjust = getNeedAdjustSelection(sheet.getSelections(), activeRowIndex, activeColIndex);
var findNextNotNullRowIndex = function (sheet, fixCol, offset, stop) {
while (offset < stop) {
if (sheet.getValue(offset, fixCol) !== null) {
break;
}
offset++;
}
return offset;
}
var rangeChangeSmall = selNeedAdjust.row + selNeedAdjust.rowCount - 1 === activeRowIndex && selNeedAdjust.rowCount > 1 ? true : false;
var stopSearchIndex = rangeChangeSmall ? activeRowIndex : sheetRowCount;
var startSearchIndex = rangeChangeSmall ? selNeedAdjust.row + 1 : selNeedAdjust.row + selNeedAdjust.rowCount;
var findResult = findNextNotNullRowIndex(sheet, activeColIndex, startSearchIndex, stopSearchIndex);
if (selNeedAdjust !== null && findResult <= sheetRowCount) {
selNeedAdjust.rowCount = rangeChangeSmall ? selNeedAdjust.rowCount + selNeedAdjust.row - findResult : findResult - selNeedAdjust.row + 1;
selNeedAdjust.row = rangeChangeSmall ? findResult : selNeedAdjust.row;
sheet.repaint();
}
}
function getNeedAdjustSelection(selections, rowIndex, colIndex) {
var sel = null;
for (var i = 0; i < selections.length; i++) {
if (selections[i].contains(rowIndex, colIndex)) {
sel = selections[i];
}
}
return sel;
}
commandManager.register("customSelectLeft", customSelectLeft);
commandManager.register("customSelectRight", customSelectRight);
commandManager.register("customSelectDown", customSelectDown);
commandManager.register("customSelectUp", customSelectUp);
commandManager.setShortcutKey(null, GC.Spread.Commands.Key.left, true, true, false, false);
commandManager.setShortcutKey("customSelectLeft", GC.Spread.Commands.Key.left, true, true, false, false);
commandManager.setShortcutKey(null, GC.Spread.Commands.Key.right, true, true, false, false);
commandManager.setShortcutKey("customSelectRight", GC.Spread.Commands.Key.right, true, true, false, false);
commandManager.setShortcutKey(null, GC.Spread.Commands.Key.down, true, true, false, false);
commandManager.setShortcutKey("customSelectDown", GC.Spread.Commands.Key.down, true, true, false, false);
commandManager.setShortcutKey(null, GC.Spread.Commands.Key.up, true, true, false, false);
commandManager.setShortcutKey("customSelectUp", GC.Spread.Commands.Key.up, true, true, false, false);
};
function _getElementById(id) {
return document.getElementById(id);
}
<!doctype html>
<html style="height:100%;font-size:14px;">
<head>
<meta name="spreadjs culture" content="zh-cn" />
<meta charset="utf-8" />
<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="$DEMOROOT$/zh/purejs/node_modules/@grapecity-software/spread-sheets-resources-zh/dist/gc.spread.sheets.resources.zh.min.js"
type="text/javascript"></script>
<script src="$DEMOROOT$/spread/source/js/license.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">
<p>将 “Tab 用于:” 字段更改为 “下一个控件”，然后点击 Spread 实例使其获得焦点。</p>
<p>按下 Tab 键，观察焦点移动到本页面的 “上一个编辑框” 文本框。</p>
<p>您可以利用此功能更改 Spread 中特定导航键的作用。</p>
<div class="option-row" style="margin-bottom: 10px;">
<input type="text" id="preEdit" placeholder="上一个编辑框" title="候选上一个控件" />
<input type="button" id="preButton" title="也是候选上一个控件" value="上一个按钮" />
</div>
<div class="option-row">
<input type="text" id="nextEdit" placeholder="下一个编辑框" title="候选下一个控件" />
<input type="button" id="nextButton" title="也是候选下一个控件" value="下一个按钮" />
</div>
<div class="option-row">
<label>Tab 用于:</label>
<select id="tabAction">
<option value="0" selected="selected">下一个单元格</option>
<option value="1">下一个控件</option>
<option value="2">下一个单元格后再到控件</option>
</select>
<label class="colorLabel">这控制着用户按下 Tab 键时发生的导航操作。</label>
</div>
<div class="option-row">
<label>Shift + Tab 用于:</label>
<select id="shiftTabAction">
<option value="0" selected="selected">上一个单元格</option>
<option value="1">上一个控件</option>
<option value="2">上一个单元格后再到控件</option>
</select>
<label class="colorLabel">这控制着用户按下 Shift+Tab 键时发生的导航操作。</label>
</div>
<div class="option-row">
<label>下一个控件:</label>
<select id="nextControl">
<option value="" selected="selected">未设置（自动检测）</option>
<option value="nextEdit">下一个编辑框</option>
<option value="nextButton">下一个按钮</option>
</select>
<label class="colorLabel">这定义了相对于 Spread 实例的下一个控件是哪个。</label>
</div>
<div class="option-row">
<label>上一个控件:</label>
<select id="preControl">
<option value="" selected="selected">未设置（自动检测）</option>
<option value="preEdit">上一个编辑框</option>
<option value="preButton">上一个按钮</option>
</select>
<label class="colorLabel">这定义了相对于 Spread 实例的上一个控件是哪个。</label>
</div>
<div class="option-row">
<input type="checkbox" id="hideSelection" />
<label for="hideSelection">隐藏选择</label>
<label class="colorLabel">勾选此框将隐藏 Spread 实例中的选择内容。</label>
</div>
</div>
</div>
</body>
</html>
.sample-tutorial {
position: relative;
height: 100%;
overflow: hidden;
}
.sample-spreadsheets {
width: calc(100% - 280px);
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;
}
.options-toggle {
display: none;
}
input, select {
padding: 4px 6px;
margin: 4px 0;
width: 100%;
box-sizing: border-box;
}
input[type=checkbox] {
width: auto;
}
.colorLabel {
width: auto;
color: #606060;
display: block;
}
.demo-options {
margin-top: 5px;
}
p{
padding:2px 10px;
background-color:#F4F8EB;
}
body {
position: absolute;
top: 0;
bottom: 0;
left: 0;
right: 0;
}
