IFE2017/js-task2-02.html at master · icyfish/IFE2017 · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
<!DOCTYPE>
<html>
  <head>
    <meta charset="utf-8">
    <title>IFE JavaScript Task2 02</title>
  <style type="text/css">
    body{
      position: relative;
    }
    .container{
      position: absolute;
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%);
    }
    .block{
      margin: 5px;
    }
    label{
      display: inline-block;
      width: 70px;
      text-align: right;
      margin: 10px;
    }
    input{
      width: 200px;
    }
    button{
      float: right;
    }
    .prompt-message{
      color: gray;
      padding-left: 93px;
    }
    .error{
      color: red;
      padding-left: 93px;
    }
    .pass{
      color: green;
      padding-left: 93px;
    }
    .error-box{
      border: 1px solid red;
    }
    .pass-box{
      border: 1px solid green;
    }
  </style>
  </head>

  <body>
    <div class="container">
      <form name="info-form">
        <div class="username">
          <label for="username">名称</label>
          <input name="username" type="text" class="input-box"/>
          <div class="prompt-message"></div>
        </div>
        <div class="password">
          <label for="password">密码</label>
          <input name="password" type="password" class="input-box"/>
          <div class="prompt-message"></div>
        </div>
        <div class="psw-confirmation">
          <label for="psw-confirmation">密码确认</label>
          <input name="psw-confirmation" type="password" class="input-box"/>
          <div class="prompt-message"></div>
        </div>
        <div class="email">
          <label for="email">邮箱</label>
          <input name="email" type="email" class="input-box"/></label>
          <div class="prompt-message"></div>
        </div>
        <div class="phone">
          <label for="phone">手机</label>
          <input name="phone" type="text" class="input-box"/>
          <div class="prompt-message"></div>
        </div>
        <div class="submit">
          <button type="submit" class='btn'>提交</button>
        </div>
      </form>
    </div>
    <script type="text/javascript">
    (function(){

      const submitBtn = document.querySelector('.btn');

      const infoForm = document.forms['info-form'];
      const nameInput = document.forms['info-form']['username'];
      const passwordInput = document.forms['info-form']['password'];
      const pswConfirmInput = document.forms['info-form']['psw-confirmation'];
      const phoneInput = document.forms['info-form']['phone'];
      const emailInput = document.forms['info-form']['email'];

      const username = document.querySelector('.username');
      const password = document.querySelector('.password');
      const pswConfirm = document.querySelector('.psw-confirmation');
      const email = document.querySelector('.email');
      const phone = document.querySelector('.phone');

      // 显示表单填写规则
      function showPrompt(inputBox, inputType, message){
        inputBox.onfocus = () => {
          inputType.querySelector('.prompt-message').classList.remove('error');
          inputType.querySelector('.prompt-message').classList.remove('pass');
          inputType.querySelector('.prompt-message').textContent = message;
        }
      };

      // 显示校验结果错误效果
      function showError(inputBox, inputType, errorMsg){
        inputType.querySelector('.prompt-message').textContent = errorMsg;
        inputType.querySelector('.prompt-message').classList.add('error');
        inputBox.classList.add('error-box');
      };

      // 显示校验结果正确效果
      function showPass(inputBox, inputType, passMsg){
        inputType.querySelector('.prompt-message').textContent = passMsg;
        inputType.querySelector('.prompt-message').classList.add('pass');
        inputBox.classList.add('pass-box');
      };


      // 检查是否为英文字符
      function isEn(char){
        return (char.charCodeAt() >= 0x00 && char.charCodeAt() <= 0xFF);
      };

      // 获取名称的字符串实际长度
      function getSumOfChars(){
        const inputArr = nameInput.value.split('');
        const sumOfChars = inputArr.reduce((accumulator, char) => {
          if(!isEn(char)) {
            return accumulator = accumulator + 2;
          }
          return ++accumulator;
        }, 0);

        return sumOfChars;
      };

      // 检查名称输入的正确性
      function validateName(){
        const sumOfChars = getSumOfChars();
        const inCharsLimit = (sumOfChars >= 4 && sumOfChars <= 16);
        return inCharsLimit;
      };

      // 检查密码输入正确性
      function validatePassword(){
        return passwordInput.value !== "";
      };

      // 检查两次密码输入是否一致
      function validatePswConfirm(){
        return passwordInput.value !== "" && passwordInput.value === pswConfirmInput.value;
      };

      // 检查email输入正确性
      function validateEmail() {
        const re = /^(([^<>()[\]\\.,;:\s@\"]+(\.[^<>()[\]\\.,;:\s@\"]+)*)|(\".+\"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/;
        return re.test(emailInput.value);
      };

      // 检查电话号码格式
      function validatePhone(){
        const re = /^[0-9]+$/;
        return re.test(phoneInput.value);
      }

      // 显示校验结果

      function displayNameValidation(){
        validateName() ? showPass(nameInput, username, '名称可用') : showError(nameInput, username, '名称格式错误');
      };

      function displayPasswordValidation(){
        validatePassword() ? showPass(passwordInput, password, '密码可用') : showError(passwordInput, password, '密码格式错误');
      };

      function displayPswConfirmValidation(){
        validatePswConfirm() ? showPass(pswConfirmInput, pswConfirm, '两次密码输入一致') : showError(pswConfirmInput, pswConfirm, '两次密码不一致');
      };

      function displayEmailValidation(){
        validateEmail() ? showPass(emailInput, email, '邮箱格式正确') : showError(emailInput, email, '邮箱格式错误');
      };

      function displayPhoneValidation(){
        validatePhone() ? showPass(phoneInput, phone, '手机号格式正确') : showError(phoneInput, phone, '手机号格式错误');
      };

      // 校验处理函数

      function validationHandler(input){
        input.addEventListener('blur',() => {
          switch (input) {
            case nameInput:
              displayNameValidation();
              break;
            case passwordInput:
              displayPasswordValidation();
              break;
            case pswConfirmInput:
              displayPswConfirmValidation();
              break;
            case emailInput:
              displayEmailValidation();
              break;
            case phoneInput:
              displayPhoneValidation();
              break;
          }
        })
      };

      // 点击提交检查所有输入格式并显示校验结果

      function onFormSubmission(){
          submitBtn.addEventListener('click',(e) => {
          displayNameValidation();
          displayPasswordValidation();
          displayPswConfirmValidation();
          displayEmailValidation();
          displayPhoneValidation();
          e.preventDefault();
          if(!validateName() || !validatePassword() || !validatePswConfirm() || !validateEmail() || !validatePhone()){
            alert('提交失败');
            return false;
          } else {
            alert('提交成功');
            return true;
          }
        })
      };

      function init(){

        // 点击输入框显示提示文字
        showPrompt(nameInput, username, '必填, 长度为4~16个字符');
        showPrompt(passwordInput, password, '请输入密码');
        showPrompt(pswConfirmInput, pswConfirm, '再次输入相同密码');
        showPrompt(emailInput, email, '请输入邮箱地址');
        showPrompt(phoneInput, phone, '请输入手机号');

        validationHandler(nameInput);
        validationHandler(passwordInput);
        validationHandler(pswConfirmInput);
        validationHandler(emailInput);
        validationHandler(phoneInput);

        onFormSubmission();

      };


      init();
      })();
    </script>
  </body>
</html>