你可以去重新定义上下文菜单的CSS名称去展示不同的外观，例如：
你可以通过重写createMenuItemElement方法来修改上下文菜单的菜单选项和结构。
你可以重写getCommandOptions方法，来实现在命令执行时提供更多的选项。
window.onload = function () {
var spread = new GC.Spread.Sheets.Workbook(document.getElementById("ss"), {sheetCount: 2});
initEvents(spread);
};
function initEvents(spread) {
document.getElementById('addMoreMenuItems').onchange = function () {
if (isMenuItemExist(spread.contextMenu.menuData, "selectColorWithBg") || isMenuItemExist(spread.contextMenu.menuData, "insertRows")) {
spread.contextMenu.menuData.forEach(function (item, index) {
if (item && (item.name === "selectColorWithBg" || item.name === "insertRows")) {
spread.contextMenu.menuData.splice(index, 1);
}
});
return;
}
var commandManager = spread.commandManager();
var selectWithABackgroundColor = {
text: "Select Color",
name: "selectColorWithBg",
workArea: "viewport",
subMenu: [
{
name: "selectColorPicker",
command: "selectWithBg"
}
]
};
spread.contextMenu.menuData.push(selectWithABackgroundColor);
var selectWithABackgroundColorCommand = {
canUndo: false,
execute: function (spread, options) {
if (options.commandOptions) {
var style = new GC.Spread.Sheets.Style();
style.name = 'style1';
style.backColor = options.commandOptions;
var sheet = spread.getActiveSheet();
sheet.suspendPaint();
var selections = sheet.getSelections();
var selectionIndex = 0, selectionCount = selections.length;
for (; selectionIndex < selectionCount; selectionIndex++) {
var selection = selections[selectionIndex];
for (var i = selection.row; i < (selection.row + selection.rowCount); i++) {
for (var j = selection.col; j < (selection.col + selection.colCount); j++) {
sheet.setStyle(i, j, style, GC.Spread.Sheets.SheetArea.viewport);
}
}
}
sheet.resumePaint();
}
}
};
commandManager.register("selectWithBg", selectWithABackgroundColorCommand, null, false, false, false, false);
var insertRows = {
text: "insertRows",
name: "insertRows",
command: "insertRows",
workArea: "rowHeader"
};
spread.contextMenu.menuData.push(insertRows);
var insertRowsCommand = {
canUndo: false,
execute: function (spread, options) {
var rowCount = parseInt(options.commandOptions);
if (!isNaN(rowCount)) {
var sheet = spread.getSheetFromName(options.sheetName);
sheet.suspendPaint();
sheet.addRows(options.activeRow, rowCount);
sheet.resumePaint();
}
}
};
commandManager.register("insertRows", insertRowsCommand, null, false, false, false, false);
function CustomMenuView() {
}
CustomMenuView.prototype = new GC.Spread.Sheets.ContextMenu.MenuView();
CustomMenuView.prototype.createMenuItemElement = function (menuItemData) {
var self = this;
if (menuItemData.name === "selectColorPicker") {
var containers = GC.Spread.Sheets.ContextMenu.MenuView.prototype.createMenuItemElement.call(self, menuItemData);
var supMenuItemContainer = containers[0];
while (supMenuItemContainer.firstChild) {
supMenuItemContainer.removeChild(supMenuItemContainer.firstChild);
}
var colorPicker = createColorpicker();
supMenuItemContainer.appendChild(colorPicker);
return supMenuItemContainer;
} else if (menuItemData.name === "insertRows") {
var containers = GC.Spread.Sheets.ContextMenu.MenuView.prototype.createMenuItemElement.call(self, menuItemData);
var supMenuItemContainer = containers[0];
supMenuItemContainer.appendChild(createInput());
return supMenuItemContainer;
} else {
var menuItemView = GC.Spread.Sheets.ContextMenu.MenuView.prototype.createMenuItemElement.call(self, menuItemData);
return menuItemView;
}
};
CustomMenuView.prototype.getCommandOptions = function (menuItemData, host, event) {
if (menuItemData && menuItemData.name === "selectColorPicker") {
var ele = event.target || event.srcElement;
return ele.style.backgroundColor;
} else if (menuItemData && menuItemData.name === "insertRows") {
return host.getElementsByClassName("inputBlock")[0].value;
}
};
spread.contextMenu.menuView = new CustomMenuView();
};
var colors = ['rgb(255,255,255)', 'rgb(0,255,255)', 'rgb(255,0,255)', 'rgb(255,255,0)', 'rgb(255,0,0)',
'rgb(0,255,0)', 'rgb(0,0,255)', 'rgb(0,0,0)'];
function createColorpicker() {
var colorPicker = document.createElement('div');
colorPicker.className = 'colorPickerContent';
for (var j = 0; j < 8; j++) {
var colorDom = document.createElement("div");
colorDom.className = 'colorDom';
colorDom.style['backgroundColor'] = colors[j];
colorPicker.appendChild(colorDom);
}
return colorPicker;
}
}
function createInput() {
var inputBlock = document.createElement('input');
inputBlock.className = 'inputBlock';
inputBlock.type = 'text';
inputBlock.value = '1';
inputBlock.setAttribute('gcUIElement', 'gcContextMenu');
inputBlock.style = 'width: 20px';
inputBlock.onclick = function (ev) {
if (ev.target) {
ev.stopPropagation()
}
}
return inputBlock;
}
function isMenuItemExist(menuData, menuItemName) {
var i = 0, count = menuData.length;
for (; i < count; i++) {
if (menuItemName === menuData[i].name) {
return true;
}
}
}
<!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">
<div class="option-row">
Right click any cell to bring up the context menu.You can easily modify the context menu depending on
your needs. Select the option below to add a new context menu item on viewport that will allow the user
to change the background color of the cell and a new context menu item on rowHeader that will allow the
user to add row count by specified number.<br />
<div class="option-row">
<input id="addMoreMenuItems" type="checkbox" />
<label for="addMoreMenuItems">Add more menu items</label>
</div>
</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;
margin-top: 10px;
}
label {
margin-bottom: 6px;
}
input {
padding: 4px 6px;
}
input[type=button] {
margin-top: 6px;
}
.buttonStyle{
width:240px;
height:30px;
}
.colorPickerContent{
width: 100%;
background-color:white;
}
.colorDom{
width: 14px;
height: 14px;
margin:0 0 0 6px;
display: inline-block;
border: solid 1px #333333;
vertical-align: top;
}
body {
position: absolute;
top: 0;
bottom: 0;
left: 0;
right: 0;
}
