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Template and Multilevel nesting in Vue ContextMenu component

Template

The ContextMenu items can be customized by using the Render event. The item render event triggers while rendering each menu item. The event argument will be used to identify the menu item and customize it based on the requirement. In the following sample, the menu item is rendered with keycode for specified action in ContextMenu using the template. Here, the keycode is specified for Save as, View page source, and Inspect in the right side corner of the menu items by adding span element in the beforeItemRender event.

Source
Preview
app.vue
<template>
<div>
<div id="target">Right click / Touch hold to open the ContextMenu</div>
<ejs-contextmenu target='#target' :items='menuItems' :beforeItemRender="onBeforeItemRender"></ejs-contextmenu>
</div>
</template>

<script>
import Vue from 'vue';
import { ContextMenuPlugin } from "@syncfusion/ej2-vue-navigations";
import { enableRipple, createElement } from '@syncfusion/ej2-base';

enableRipple(true);
Vue.use(ContextMenuPlugin);

export default {
    data () {
        return {
            menuItems:[
            {
                text: 'Save as...'
            },
            {
                text: 'View page source'
            },
            {
                text: 'Inspect'
            }]
        };
    },
    methods: {
        onBeforeItemRender: function(args) {
            var shortCutSpan = createElement('span');
            var text = args.item.text;
            var shortCutText = text === 'Save as...' ? 'Ctrl + S' : (text === 'View page source' ?
            'Ctrl + U'      : 'Ctrl + Shift + I');
            shortCutSpan.textContent = shortCutText;
            args.element.appendChild(shortCutSpan);
            shortCutSpan.setAttribute('class','shortcut');
        }
    }
}
</script>

<style>
@import "../node_modules/@syncfusion/ej2-base/styles/material.css";
@import "../node_modules/@syncfusion/ej2-buttons/styles/material.css";
@import "../node_modules/@syncfusion/ej2-inputs/styles/material.css";
@import "../node_modules/@syncfusion/ej2-popups/styles/material.css";
@import "../node_modules/@syncfusion/ej2-navigations/styles/material.css";

#target {
  border: 1px dashed;
  height: 150px;
  padding: 10px;
  position: relative;
  text-align: justify;
  color: gray;
  user-select: none;
}

.shortcut {
  float: right;
  font-size: 10px;
  opacity: 0.5;
  padding-left: 50px;
}

</style>

To create span element, createElement utility function used from ej2-base.

Multilevel nesting

The Multiple level nesting supports in ContextMenu. It can be achieved by mapping the items property inside the parent menuItems. In the below sample, three level nesting of ContextMenu is provided.

Source
Preview
app.vue
<template>
<div>
<div id="target">Right click / Touch hold to open the ContextMenu</div>
<ejs-contextmenu target='#target' :items='menuItems'></ejs-contextmenu>
</div>
</template>

<script>
import Vue from 'vue';
import { ContextMenuPlugin } from "@syncfusion/ej2-vue-navigations";
import { enableRipple } from '@syncfusion/ej2-base';

enableRipple(true);
Vue.use(ContextMenuPlugin);

export default {
    data () {
        return {
            menuItems:[
            {
                text: 'Show All Bookmarks',
            },
            {
                text: 'Bookmarks Toolbar',
                items: [
                    {
                        text: 'Most Visited',
                        items: [
                        {
                            text: 'Google',
                        },
                        {
                            text: 'Gmail'
                        }]
                    },
                    {
                        text: 'Recently Added'
                    }
                ]
            }]
        };
    }
}
</script>

<style>
@import "../node_modules/@syncfusion/ej2-base/styles/material.css";
@import "../node_modules/@syncfusion/ej2-buttons/styles/material.css";
@import "../node_modules/@syncfusion/ej2-inputs/styles/material.css";
@import "../node_modules/@syncfusion/ej2-popups/styles/material.css";
@import "../node_modules/@syncfusion/ej2-navigations/styles/material.css";

#target {
  border: 1px dashed;
  height: 150px;
  padding: 10px;
  position: relative;
  text-align: justify;
  color: gray;
  user-select: none;
}

</style>
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