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。
<template>
<div class="sample-tutorial">
<gc-spread-sheets class="sample-spreadsheets" @workbookInitialized="initSpread">
<gc-worksheet>
</gc-worksheet>
</gc-spread-sheets>
<div class="options-container">
<div class="options-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.
</div>
<div class="options-row">
<input type="checkbox" id="addMoreMenuItems" v-model="addMoreMenuItems">
<label for="addMoreMenuItems">Add background color menu selection</label>
</div>
</div>
</template>
<script>
import Vue from "vue";
import '@grapecity-software/spread-sheets-resources-zh';
GC.Spread.Common.CultureManager.culture("zh-cn");
import '@grapecity-software/spread-sheets-vue';
import GC from '@grapecity-software/spread-sheets';
import './styles.css';
let 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)'];
let spreadNS = GC.Spread.Sheets;
let App = Vue.extend({
name: "app",
data: function() {
return {
spread: null,
addMoreMenuItems: false
};
},
watch: {
addMoreMenuItems() {
let spread = this.spread;
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;
}
let commandManager = spread.commandManager();
// prepair select with a background color command and menu item
let selectWithABackgroundColor = {
text: "Select Color",
name: "selectColorWithBg",
workArea: "viewport",
subMenu: [
{
name: "selectColorPicker",
command: "selectWithBg"
}
]
};
spread.contextMenu.menuData.push(selectWithABackgroundColor);
let selectWithABackgroundColorCommand = {
canUndo: false,
execute: function(spread, options) {
if (options.commandOptions) {
let style = new GC.Spread.Sheets.Style();
style.name = 'style1';
style.backColor = options.commandOptions;
let sheet = spread.getActiveSheet();
sheet.suspendPaint();
let selections = sheet.getSelections();
let selectionIndex = 0, selectionCount = selections.length;
for (; selectionIndex < selectionCount; selectionIndex++) {
let selection = selections[selectionIndex];
for (let i = selection.row; i < (selection.row + selection.rowCount); i++) {
for (let 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);
// prepair insert rows by specified row count command and menu item
let insertRows = {
text: "insertRows",
name: "insertRows",
command: "insertRows",
workArea: "rowHeader"
};
spread.contextMenu.menuData.push(insertRows);
let insertRowsCommand = {
canUndo: false,
execute: function(spread, options) {
let rowCount = parseInt(options.commandOptions);
if (!isNaN(rowCount)) {
let sheet = spread.getSheetFromName(options.sheetName);
sheet.suspendPaint();
sheet.addRows(options.activeRow, rowCount);
sheet.resumePaint();
}
}
};
commandManager.register("insertRows", insertRowsCommand, null, false, false, false, false);
// customize context menu
function CustomMenuView() {
}
CustomMenuView.prototype = new GC.Spread.Sheets.ContextMenu.MenuView();
CustomMenuView.prototype.createMenuItemElement = function(menuItemData) {
let self = this;
if (menuItemData.name === "selectColorPicker") {
let containers = GC.Spread.Sheets.ContextMenu.MenuView.prototype.createMenuItemElement.call(self, menuItemData);
let supMenuItemContainer = containers[0];
while (supMenuItemContainer.firstChild) {
supMenuItemContainer.removeChild(supMenuItemContainer.firstChild);
}
let colorPicker = createColorpicker();
supMenuItemContainer.appendChild(colorPicker);
return supMenuItemContainer;
} else if (menuItemData.name === "insertRows") {
let containers = GC.Spread.Sheets.ContextMenu.MenuView.prototype.createMenuItemElement.call(self, menuItemData);
let supMenuItemContainer = containers[0];
supMenuItemContainer.appendChild(createInput());
return supMenuItemContainer;
} else {
let 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") {
let 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();
}
},
methods: {
initSpread: function(spread) {
this.spread = spread;
}
}
});
function createColorpicker() {
let colorPicker = document.createElement('div');
colorPicker.className = 'colorPickerContent';
for (let j = 0; j < 8; j++) {
let colorDom = document.createElement("div");
colorDom.className = 'colorDom';
colorDom.style['backgroundColor'] = colors[j];
colorPicker.appendChild(colorDom);
}
return colorPicker;
}
function isMenuItemExist(menuData, menuItemName) {
let i = 0, count = menuData.length;
for (; i < count; i++) {
if (menuItemName === menuData[i].name) {
return true;
}
}
}
function createInput() {
let 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;
}
new Vue({ render: h => h(App) }).$mount('#app');
</script>
<!doctype html>
<html style="height:100%;font-size:14px;">
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<link rel="stylesheet" type="text/css"
href="$DEMOROOT$/zh/vue/node_modules/@grapecity-software/spread-sheets/styles/gc.spread.sheets.excel2013white.css">
<script src="$DEMOROOT$/spread/source/data/outlineColumn.js" type="text/javascript"></script>
<!-- SystemJS -->
<script src="$DEMOROOT$/zh/vue/node_modules/systemjs/dist/system.src.js"></script>
<script src="systemjs.config.js"></script>
<script>
System.import('./src/app.vue');
System.import('$DEMOROOT$/zh/lib/vue/license.js');
</script>
</head>
<body>
<div id="app"></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;
}
.options-row {
font-size: 14px;
padding: 5px;
margin-top: 10px;
}
input {
display: inline-block;
}
input[type="text"] {
width: 200px;
}
label {
margin-bottom: 6px;
}
body {
position: absolute;
top: 0;
bottom: 0;
left: 0;
right: 0;
}
.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;
}
(function(global) {
System.config({
transpiler: 'plugin-babel',
babelOptions: {
es2015: true
},
meta: {
'*.css': { loader: 'css' },
'*.vue': { loader: 'vue-loader' }
},
paths: {
// paths serve as alias
'npm:': 'node_modules/'
},
// map tells the System loader where to look for things
map: {
'@grapecity-software/spread-sheets': 'npm:@grapecity-software/spread-sheets/index.js',
'@grapecity-software/spread-sheets-resources-zh': 'npm:@grapecity-software/spread-sheets-resources-zh/index.js',
'@grapecity-software/spread-sheets-vue': 'npm:@grapecity-software/spread-sheets-vue/index.js',
'@grapecity-software/jsob-test-dependency-package/react-components': 'npm:@grapecity-software/jsob-test-dependency-package/react-components/index.js',
'jszip': 'npm:jszip/dist/jszip.js',
'css': 'npm:systemjs-plugin-css/css.js',
'vue': 'npm:vue/dist/vue.min.js',
'vue-loader': 'npm:systemjs-vue-browser/index.js',
'tiny-emitter': 'npm:tiny-emitter/index.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'
},
rxjs: {
defaultExtension: 'js'
},
"node_modules": {
defaultExtension: 'js'
}
}
});
})(this);
