[英]VueJS template - Flip between Login Form & Register Form
我正在嘗試在“登錄表單”和“注冊表單”之間切換。 我嘗試使用在 codepen Flat HTML5/CSS3 Login Form上遇到的代碼。 代碼工作得很好,但是當我將 HTML 代碼集成到 Vue 模板中時,表單不會翻轉到“創建帳戶”表單。 我觀察到 JavaScript 中有一些需要糾正的地方,但我無法准確理解是什么。
我的代碼如下:
HTML
<template id="login-page"> // PROBLEM When this Tag is added and called using VueJS component
<div class="login-page">
<div class="form">
<form class="register-form">
<input type="text" placeholder="name"/>
<input type="password" placeholder="password"/>
<input type="text" placeholder="email address"/>
<button>create</button>
<p class="message">Already registered? <a href="#">Sign In</a></p>
</form>
<form class="login-form">
<input type="text" placeholder="username"/>
<input type="password" placeholder="password"/>
<button>login</button>
<p class="message">Not registered? <a href="#">Create an account</a></p>
</form>
</div>
</div>
</template> // PROBLEM When this Tag is added and called using VueJS component
VueJS
// Vue component: login-page
const LoginPage = {
template: '#login-page',
data() {
return {
login_message: 'Please enter your credentials to login.',
loginStage: 'login-form',
}
},
}
JavaScript
<script>
$('.message a').click(function(){
$('form').animate({height: "toggle", opacity: "toggle"}, "slow");
});
</script>
CSS
<style>
@import url(https://fonts.googleapis.com/css?family=Roboto:300);
.login-page {
width: 360px;
padding: 8% 0 0;
margin: auto;
}
.form {
position: relative;
z-index: 1;
background: #FFFFFF;
max-width: 360px;
margin: 0 auto 100px;
padding: 45px;
text-align: center;
box-shadow: 0 0 20px 0 rgba(0, 0, 0, 0.2), 0 5px 5px 0 rgba(0, 0, 0, 0.24);
}
.form input {
font-family: "Roboto", sans-serif;
outline: 0;
background: #f2f2f2;
width: 100%;
border: 0;
margin: 0 0 15px;
padding: 15px;
box-sizing: border-box;
font-size: 14px;
}
.form button {
font-family: "Roboto", sans-serif;
text-transform: uppercase;
outline: 0;
background: #4CAF50;
width: 100%;
border: 0;
padding: 15px;
color: #FFFFFF;
font-size: 14px;
-webkit-transition: all 0.3 ease;
transition: all 0.3 ease;
cursor: pointer;
}
.form button:hover,.form button:active,.form button:focus {
background: #43A047;
}
.form .message {
margin: 15px 0 0;
color: #b3b3b3;
font-size: 12px;
}
.form .message a {
color: #4CAF50;
text-decoration: none;
}
.form .register-form {
display: none;
}
.container {
position: relative;
z-index: 1;
max-width: 300px;
margin: 0 auto;
}
.container:before, .container:after {
content: "";
display: block;
clear: both;
}
.container .info {
margin: 50px auto;
text-align: center;
}
.container .info h1 {
margin: 0 0 15px;
padding: 0;
font-size: 36px;
font-weight: 300;
color: #1a1a1a;
}
.container .info span {
color: #4d4d4d;
font-size: 12px;
}
.container .info span a {
color: #000000;
text-decoration: none;
}
.container .info span .fa {
color: #EF3B3A;
}
body {
background: #76b852; /* fallback for old browsers */
background: -webkit-linear-gradient(right, #76b852, #8DC26F);
background: -moz-linear-gradient(right, #76b852, #8DC26F);
background: -o-linear-gradient(right, #76b852, #8DC26F);
background: linear-gradient(to left, #76b852, #8DC26F);
font-family: "Roboto", sans-serif;
-webkit-font-smoothing: antialiased;
-moz-osx-font-smoothing: grayscale;
}
</style>
您正在混合使用 Vue 作為庫和 Vue 作為框架。 看起來,您實際上是在嘗試使用 Vue 作為庫,所以我相應地更改了代碼,這里是 myfiddle 。 您只需添加一個轉換,有關更多信息,請查看文檔Enter/Leave & List Transitions 。
HTML:
<div id="login-page" class="login-page">
<div class="form">
<form class="register-form" v-show="showRegisterForm">
<input type="text" placeholder="name"/>
<input type="password" placeholder="password"/>
<input type="text" placeholder="email address"/>
<button>create</button>
<p class="message">Already registered? <a href="#" @click.prevent="toggleForm('login')">Sign In</a></p>
</form>
<form class="login-form" v-show="showLoginForm">
<input type="text" placeholder="username"/>
<input type="password" placeholder="password"/>
<button>login</button>
<p class="message">Not registered? <a href="#" @click.prevent="toggleForm('register')">Create an account</a></p>
</form>
</div>
</div>
JS:
new Vue({
el: '#login-page',
data() {
return {
login_message: 'Please enter your credentials to login.',
loginStage: 'login-form',
currentForm: 'login',
}
},
computed: {
showRegisterForm() {
return this.currentForm === 'register';
},
showLoginForm() {
return this.currentForm === 'login';
},
},
methods: {
toggleForm(formName) {
this.currentForm = formName;
},
},
});
CSS:
@import url(https://fonts.googleapis.com/css?family=Roboto:300);
.login-page {
width: 360px;
padding: 8% 0 0;
margin: auto;
}
.form {
position: relative;
z-index: 1;
background: #FFFFFF;
max-width: 360px;
margin: 0 auto 100px;
padding: 45px;
text-align: center;
box-shadow: 0 0 20px 0 rgba(0, 0, 0, 0.2), 0 5px 5px 0 rgba(0, 0, 0, 0.24);
}
.form input {
font-family: "Roboto", sans-serif;
outline: 0;
background: #f2f2f2;
width: 100%;
border: 0;
margin: 0 0 15px;
padding: 15px;
box-sizing: border-box;
font-size: 14px;
}
.form button {
font-family: "Roboto", sans-serif;
text-transform: uppercase;
outline: 0;
background: #4CAF50;
width: 100%;
border: 0;
padding: 15px;
color: #FFFFFF;
font-size: 14px;
-webkit-transition: all 0.3 ease;
transition: all 0.3 ease;
cursor: pointer;
}
.form button:hover,.form button:active,.form button:focus {
background: #43A047;
}
.form .message {
margin: 15px 0 0;
color: #b3b3b3;
font-size: 12px;
}
.form .message a {
color: #4CAF50;
text-decoration: none;
}
.container {
position: relative;
z-index: 1;
max-width: 300px;
margin: 0 auto;
}
.container:before, .container:after {
content: "";
display: block;
clear: both;
}
.container .info {
margin: 50px auto;
text-align: center;
}
.container .info h1 {
margin: 0 0 15px;
padding: 0;
font-size: 36px;
font-weight: 300;
color: #1a1a1a;
}
.container .info span {
color: #4d4d4d;
font-size: 12px;
}
.container .info span a {
color: #000000;
text-decoration: none;
}
.container .info span .fa {
color: #EF3B3A;
}
body {
background: #76b852; /* fallback for old browsers */
background: -webkit-linear-gradient(right, #76b852, #8DC26F);
background: -moz-linear-gradient(right, #76b852, #8DC26F);
background: -o-linear-gradient(right, #76b852, #8DC26F);
background: linear-gradient(to left, #76b852, #8DC26F);
font-family: "Roboto", sans-serif;
-webkit-font-smoothing: antialiased;
-moz-osx-font-smoothing: grayscale;
}
雖然@Fred 接受了@chr 的回答,但這(仍然)是對 Vue 的誤用。
(請注意,這不是試圖重現工作小提琴,而是回答如何使用更面向 Vue 的方法在“登錄表單”和“注冊表單”之間翻轉的一般問題)
在 Vue 的處理方式中,登錄表單和注冊表單之間的切換應該通過標記完成,使用Vue 條件渲染而不是調用函數showRegisterForm()
和showLoginForm()
。
toggleForm
不需要參數,因為模型已經知道currentForm
的值是什么。
if
和else
是最簡單的方法,它利用 Vue 模型中的屬性,例如chr在他們的答案中引入的currentForm: 'login'
。
HTML 只需要稍作改動
<div id="login-page" class="login-page">
<div class="form">
<form v-if="currentForm.toLowerCase() === 'register'" class="register-form">
<input type="text" placeholder="name"/>
<input type="password" placeholder="password"/>
<input type="text" placeholder="email address"/>
<button>create</button>
<p class="message">Already registered?
<a href="#" @click.prevent="toggleForm()">Sign In</a></p>
</form>
<form v-else class="login-form">
<input type="text" placeholder="username"/>
<input type="password" placeholder="password"/>
<button>login</button>
<p class="message">Not registered?
<a href="#" @click.prevent="toggleForm()">Create an account</a></p>
</form>
</div>
</div>
部分查看所需的模型可能是
const model = new Vue({
data : {
'currentForm' : 'login',
...
},
...
methods : {
toggleForm() {
this.currentForm = this.currentForm === 'login' ? 'register' : 'login';
}
},
...
});
當currentForm
的值發生變化時,Vue 將負責更改要顯示的表單。
另請參閱問題VueJS - Swap component on click的答案以獲得更通用的方法。
@chr解決方案對我有用,除了必須更改的前兩行 JavaScript 代碼,因為在我的情況下,我有一個現有的 Vue,它調用登錄組件,然后激活登錄模板。
JavaScript
// Vue component: login-page
const LoginPage = {
template: '#login-page',
data() {
return {
login_message: 'Please enter your credentials to login.',
currentForm: 'login',
}
},
computed: {
showRegisterForm() {
return this.currentForm === 'register';
},
showLoginForm() {
return this.currentForm === 'login';
},
},
methods: {
toggleForm(formName) {
this.currentForm = formName;
},
},
}
Stephen P 的代碼也工作得很好,而且更整潔,除了第一種形式應該有單引號中的寄存器,即“寄存器”,下面更正了。
HTML
<div id="login-page" class="login-page">
<span><h1>{{currentForm.toUpperCase()}} FORM</h1></span>
<span><h5>Please enter your credentials to {{currentForm.toLowerCase()}}.</h5></span>
<div class="form">
<form v-if="currentForm.toLowerCase() === 'register'" class="register-form">
<input type="text" placeholder="name"/>
<input type="password" placeholder="password"/>
<input type="text" placeholder="email address"/>
<button>create</button>
<p class="message">Already registered? <a href="#" @click.prevent="toggleForm()">Sign In</a></p>
</form>
<form v-else class="login-form">
<input type="text" placeholder="username"/>
<input type="password" placeholder="password"/>
<button>login</button>
<p class="message">Not registered? <a href="#" @click.prevent="toggleForm()">Create an account</a></p>
</form>
</div>
</div>
JavaScript
// Vue component: login-page
const LoginPage = {
template: '#login-page',
data() {
return {
currentForm: 'login',
}
},
methods: {
toggleForm()
{
this.currentForm = this.currentForm === 'login' ? 'register' : 'login';
}
},
}
CSS
@import url(https://fonts.googleapis.com/css?family=Roboto:300);
.login-page {
width: 360px;
padding: 8% 0 0;
margin: auto;
}
.form {
position: relative;
z-index: 1;
background: #FFFFFF;
max-width: 360px;
margin: 0 auto 100px;
padding: 45px;
text-align: center;
box-shadow: 0 0 20px 0 rgba(0, 0, 0, 0.2), 0 5px 5px 0 rgba(0, 0, 0, 0.24);
}
.form input {
font-family: "Roboto", sans-serif;
outline: 0;
background: #f2f2f2;
width: 100%;
border: 0;
margin: 0 0 15px;
padding: 15px;
box-sizing: border-box;
font-size: 14px;
}
.form button {
font-family: "Roboto", sans-serif;
text-transform: uppercase;
outline: 0;
background: #4CAF50;
width: 100%;
border: 0;
padding: 15px;
color: #FFFFFF;
font-size: 14px;
-webkit-transition: all 0.3 ease;
transition: all 0.3 ease;
cursor: pointer;
}
.form button:hover,.form button:active,.form button:focus {
background: #43A047;
}
.form .message {
margin: 15px 0 0;
color: #b3b3b3;
font-size: 12px;
}
.form .message a {
color: #4CAF50;
text-decoration: none;
}
.container {
position: relative;
z-index: 1;
max-width: 300px;
margin: 0 auto;
}
.container:before, .container:after {
content: "";
display: block;
clear: both;
}
.container .info {
margin: 50px auto;
text-align: center;
}
.container .info h1 {
margin: 0 0 15px;
padding: 0;
font-size: 36px;
font-weight: 300;
color: #1a1a1a;
}
.container .info span {
color: #4d4d4d;
font-size: 12px;
}
.container .info span a {
color: #000000;
text-decoration: none;
}
.container .info span .fa {
color: #EF3B3A;
}
body {
background: #76b852; /* fallback for old browsers */
background: -webkit-linear-gradient(right, #76b852, #8DC26F);
background: -moz-linear-gradient(right, #76b852, #8DC26F);
background: -o-linear-gradient(right, #76b852, #8DC26F);
background: linear-gradient(to left, #76b852, #8DC26F);
font-family: "Roboto", sans-serif;
-webkit-font-smoothing: antialiased;
-moz-osx-font-smoothing: grayscale;
}
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