feat(Form): add failed event params

src/field/index.js

@@ -135,19 +135,29 @@ export default createComponent({
       }
     },
 
-    // @exposed-api
     validate() {
+      return new Promise(resolve => {
         if (!this.rules) {
-        return true;
+          resolve();
         }
 
-      return !this.rules.some(rule => {
+        const messages = [];
+
+        this.rules.forEach(rule => {
           if (rule.required && !this.formValue) {
-          this.validateMessage = rule.message;
-          return true;
+            messages.push(rule.message);
           }
+        });
 
-        return false;
+        if (messages.length) {
+          this.validateMessage = messages[0];
+          resolve({
+            name: this.name,
+            messages,
+          });
+        } else {
+          resolve();
+        }
       });
     },
 

src/form/index.js

@@ -19,10 +19,20 @@ export default createComponent({
   methods: {
     // @exposed-api
     validate() {
-      return this.fields.map(item => item.validate()).every(item => item);
+      return new Promise((resolve, reject) => {
+        Promise.all(this.fields.map(item => item.validate())).then(errors => {
+          errors = errors.filter(item => item);
+
+          if (errors.length) {
+            reject(errors);
+          } else {
+            resolve();
+          }
+        });
+      });
     },
 
-    getFormData() {
+    getValues() {
       return this.fields.reduce((form, field) => {
         form[field.name] = field.formValue;
         return form;
@@ -32,13 +42,18 @@ export default createComponent({
     onSubmit(event) {
       event.preventDefault();
 
-      const valid = this.validate();
+      const values = this.getValues();
 
-      if (valid) {
-        this.$emit('submit', this.getFormData());
-      } else {
-        this.$emit('failed');
-      }
+      this.validate()
+        .then(() => {
+          this.$emit('submit', values);
+        })
+        .catch(errors => {
+          this.$emit('failed', {
+            values,
+            errors,
+          });
+        });
     },
   },
 

vant.config.js

@@ -126,6 +126,10 @@ module.exports = {
                 path: 'field',
                 title: 'Field 输入框',
               },
+              {
+                path: 'form',
+                title: 'Form 表单',
+              },
               {
                 path: 'number-keyboard',
                 title: 'NumberKeyboard 数字键盘',
@@ -461,6 +465,10 @@ module.exports = {
                 path: 'field',
                 title: 'Field',
               },
+              {
+                path: 'form',
+                title: 'Form',
+              },
               {
                 path: 'number-keyboard',
                 title: 'NumberKeyboard',