私はこれらのvueイベントハンドラーを知っています:
@click : mouse left-click
@dblclick : mouse double click
右クリックを検出するハンドラー/ディレクティブは何ですか? Vueツリービューでカスタムコンテキストメニューを実装する必要があります。
ありがとう。
<button @contextmenu="handler($event)">r-click</button>
methods : {
handler: function(e) {
//do stuff
e.preventDefault();
}
}
@contextmenu
がトリックを行います。 preventDefault
は、デフォルトのコンテキストメニューを表示しないようにするためのものです。
S コメントに示されているように、:
<button @contextmenu.prevent="handler">r-click</button>
prevent
修飾子は、デフォルトの動作を防ぐように注意を払うようになりました。
ここは、「カスタム」ワードへの答えでもあります-別名 idea 右クリック可能な要素のIDをキャッチする方法
<html>
<head>
<style>
html, body, #app {
margin: 0;
width: 100%;
height: 100%;
display: flex;
text-align: center;
align-items: center;
justify-content: center;
background-color: #343338;
font-family: Roboto, Tahoma, sans-serif;
}
.title {
color: white;
display: block;
font-size: 25px;
}
.cls-context-menu {
display:none;
position:absolute;
}
.cls-context-menu ul, #context-menu li {
list-style:none;
margin:0; padding:0;
background:white;
}
.cls-context-menu { border:solid 1px #CCC;}
.cls-context-menu li {
border-bottom:solid 1px #CCC;
display:block;
padding:5px 12px;
text-decoration:none;
color:blue;
}
.cls-context-menu li:hover{
background: blue;
color: #FFF;
}
.cls-context-menu li:last-child { border:none; }
.context-menu-icon {
top: 1px;
position: relative;
margin-right: 2px;
}
.cls-context-menu-item {
cursor: pointer;
display:block;
padding:20px;
background:#ECECEC;
}
</style>
<!-- <link rel="stylesheet" type="text/css"
href="../../poc/right-click-vmenu/right-click-menu.css" /> -->
</head>
<body>
<template id="context-menu-item-template">
<li class="cls-context-menu-item">
<slot></slot>
</li>
</template>
<template id="context-menu-template">
<div id="div-context-menu" :nid="cid" class="cls-context-menu" style="left: 160px; top: 57px; display: none">
<ul>
<context-menu-item>
<a @click="addNewItem($event)"><img class="context-menu-icon" src="data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHZpZXdCb3g9IjAgMCA0NS40IDQ1LjQiPjxwYXRoIGZpbGw9IiNmOTY5MGUiIGQ9Ik00MS4zIDE4LjZIMjYuOFY0YzAtMi0xLjgtNC00LTQtMi40IDAtNC4yIDItNC4yIDR2MTQuNkg0Yy0yIDAtNCAxLjgtNCA0IDAgMS4yLjUgMi4zIDEuMiAzIC44LjggMS44IDEuMyAzIDEuM2gxNC40djE0LjNjMCAxIC40IDIgMS4yIDMgLjcuNiAxLjggMSAzIDEgMi4yIDAgNC0xLjcgNC00VjI3aDE0LjVjMi4zIDAgNC0yIDQtNC4zcy0xLjgtNC00LTR6Ii8+PC9zdmc+" width="12">
add new </a>
</context-menu-item>
<context-menu-item>
<a @click="updateItem($event)"><img class="context-menu-icon" src="data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHZpZXdCb3g9IjAgMCA1MjguOSA1MjguOSI+PHBhdGggZmlsbD0iI2Y5NjkwZSIgZD0iTTMyOSA4OWwxMDcuNSAxMDcuN0wxNjQgNDY5IDU2LjcgMzYxLjYgMzI5IDg5em0xODktMjUuOGwtNDgtNDhjLTE4LjQtMTguNS00OC41LTE4LjUtNjcgMGwtNDYgNDYgMTA3LjUgMTA3LjVMNTE4IDExNWMxNC41LTE0LjIgMTQuNS0zNy40IDAtNTEuOHpNLjQgNTEyLjdjLTIgOC44IDYgMTYuNyAxNC44IDE0LjZsMTIwLTI5TDI3LjUgMzkwLjUuMyA1MTIuNnoiLz48L3N2Zz4=" width="12">
edit </a>
</context-menu-item>
<context-menu-item>
<a @click="removeItem($event)"><img class="context-menu-icon" src="data:image/svg+xml;base64,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" width="10">
remove</a>
</context-menu-item>
</ul>
</div>
</template>
<div id="app" @click="hideContextMenu()" @contextmenu = "showContextMenu($event)">
<div>
<h3 id="title-1" class="title">Num-01 Click with right-a on body</h3>
<h3 id="title-2" class="title">Num-02 Click with right-a on body</h3>
</div>
<context-menu></context-menu>
</div>
<div id="js_libs">
<script src="https://unpkg.com/axios/dist/axios.min.js"></script>
<script src="https://unpkg.com/[email protected]/dist/vue.js"></script>
<script src="https://unpkg.com/[email protected]/dist/vuex.js"></script>
</div>
<script>
Vue.component('context-menu-item', {
template: '#context-menu-item-template',
props: {
icon: ''
}
});
Vue.component('context-menu', {
template: '#context-menu-template'
, props: {
icon: ''
, nid: null
}
, data() {
return {
cid: null
}
}
, methods: {
addNewItem: function (e) {
var itemId = e.target.parentElement.parentElement.parentElement.cid
var msg = "UPDATE clicked for item-id : " + itemId
console.log ( msg ) ; alert ( msg ) ;
}
, updateItem: function (e) {
var itemId = e.target.parentElement.parentElement.parentElement.cid
var msg = "UPDATE clicked for item-id : " + itemId
console.log ( msg ) ; alert ( msg ) ;
}
, removeItem: function (e) {
var itemId = e.target.parentElement.parentElement.parentElement.cid
var msg = "REMOVE clicked for item-id : " + itemId
console.log ( msg ) ; alert ( msg ) ;
}
}
});
var vm = new Vue({
el: '#app'
, methods: {
showContextMenu: function (e) {
if ( e.target.className.startsWith("title") ) {
e.preventDefault();
var menu = document.getElementById("div-context-menu");
menu.style.left = e.pageX + 'px'
menu.style.top = e.pageY + 'px'
menu.style.display = 'block'
menu.cid = e.target.id.replace(/title-/,"")
console.log ( "cid")
console.log ( menu.cid )
}
}
, hideContextMenu: function () {
document.getElementById("div-context-menu").style.display = "none"
}
}
});
</script>
</body>
</html>