嵌套命名视图
我们也有可能使用命名视图创建嵌套视图的复杂布局。这时你也需要命名用到的嵌套 router-view 组件。我们以一个设置面板为例：
/settings/emails /settings/profile
+-----------------------------------+ +------------------------------+
| UserSettings | | UserSettings |
| +-----+-------------------------+ | | +-----+--------------------+ |
| | Nav | UserEmailsSubscriptions | | +------------> | | Nav | UserProfile | |
| | +-------------------------+ | | | +--------------------+ |
| | | | | | | | UserProfilePreview | |
| +-----+-------------------------+ | | +-----+--------------------+ |
+-----------------------------------+ +------------------------------+
Nav只是一个常规组件。UserSettings是一个视图组件。UserEmailsSubscriptions、UserProfile、UserProfilePreview是嵌套的视图组件。
注意：我们先忘记 HTML/CSS 具体的布局的样子，只专注在用到的组件上。
代码，由于要翻墙，保存一下：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<script src="https://unpkg.com/vue/dist/vue.js"></script>
<script src="https://unpkg.com/vue-router/dist/vue-router.js"></script>
<style>
.us {
display: grid;
grid-template-columns: auto 1fr;
grid-template-rows: auto;
grid-template-areas:
"header header"
"nav content"
"nav helper"
;
}
h2 {
grid-area: header;
}
.us__nav {
grid-area: nav;
border: 1px dotted;
margin-right: .75rem;
padding: .3rem;
}
.us__content {
grid-area: content;
}
.us__content--helper {
grid-area: helper;
}
</style>
</head>
<body>
<div id="app">
<h1>Nested Named Views</h1>
<router-view></router-view>
</div>
</body>
<script>
const UserSettingsNav = {
template: `
<div class="us__nav">
<router-link to="/settings/emails">emails</router-link>
<br>
<router-link to="/settings/profile">profile</router-link>
</div>
`
}
const UserSettings = {
template: `
<div class="us">
<h2>User Settings</h2>
<UserSettingsNav/>
<router-view class ="us__content"/>
<router-view name="helper" class="us__content us__content--helper"/>
</div>
`,
components: { UserSettingsNav }
}
const UserEmailsSubscriptions = {
template: `
<div>
<h3>Email Subscriptions</h3>
</div>
`
}
const UserProfile = {
template: `
<div>
<h3>Edit your profile</h3>
</div>
`
}
const UserProfilePreview = {
template: `
<div>
<h3>Preview of your profile</h3>
</div>
`
}
const router = new VueRouter({
mode: 'history',
routes: [
{
path: '/settings',
// You could also have named views at tho top
component: UserSettings,
children: [{
path: 'emails',
component: UserEmailsSubscriptions
}, {
path: 'profile',
components: {
default: UserProfile,
helper: UserProfilePreview
}
}]
}
]
})
router.push('/settings/emails')
new Vue({
router,
el: '#app'
})
</script>
</html>