vant components

packages/field/CHANGELOG.md

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+## 0.0.2 (2017-01-20)
+
+* 改了bug A
+* 加了功能B
+
+## 0.0.1 (2017-01-10)
+
+* 第一版

packages/field/README.md

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+# @youzan/<%= name %>
+
+!!! 请在此处填写你的文档最简单描述 !!!
+
+[![version][version-image]][download-url]
+[![download][download-image]][download-url]
+
+[version-image]: http://npm.qima-inc.com/badge/v/@youzan/<%= name %>.svg?style=flat-square
+[download-image]: http://npm.qima-inc.com/badge/d/@youzan/<%= name %>.svg?style=flat-square
+[download-url]: http://npm.qima-inc.com/package/@youzan/<%= name %>
+
+## Demo
+
+## Usage
+
+## API
+
+| 参数       | 说明      | 类型       | 默认值       | 可选值       |
+|-----------|-----------|-----------|-------------|-------------|
+| className | 自定义额外类名 | string  | ''          | ''          |
+
+
+
+
+## License
+[MIT](https://opensource.org/licenses/MIT)

packages/field/index.js

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+import Field from './src/field';
+
+export default Field;

packages/field/package.json

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+{
+  "name": "@youzan/van-field",
+  "version": "0.0.1",
+  "description": "form field component",
+  "main": "./index.js",
+  "author": "zhangmin <zhangmin@youzan.com>",
+  "license": "MIT",
+  "devDependencies": {},
+  "dependencies": {}
+}

packages/field/src/field.vue

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+<template>
+  <van-cell
+    class="van-field"
+    :title="label"
+    :required="required"
+    :class="{
+      'van-field--hastextarea': type === 'textarea',
+      'van-field--nolabel': !label,
+      'van-field--disabled': disabled,
+      'van-field--error': error,
+      'van-field--border': border,
+      'van-field--autosize': autosize
+    }">
+    <textarea
+      v-if="type === 'textarea'"
+      ref="textareaElement"
+      class="van-field__control"
+      v-model="currentValue"
+      @focus="handleInputFocus"
+      :placeholder="placeholder"
+      :maxlength="maxlength"
+      :disabled="disabled"
+      :readonly="readonly"
+      :rows="rows"
+      :cols="cols">
+    </textarea>
+    <input
+      v-else
+      class="van-field__control"
+      :value="currentValue"
+      @input="handleInput"
+      @focus="handleInputFocus"
+      :type="type"
+      :placeholder="placeholder"
+      :maxlength="maxlength"
+      :disabled="disabled"
+      :readonly="readonly">
+  </van-cell>
+</template>
+
+<script>
+const VALID_TYPES = ['text', 'number', 'email', 'url', 'tel', 'date', 'datetime', 'password', 'textarea'];
+import zanCell from 'packages/cell';
+
+export default {
+  name: 'van-field',
+
+  components: {
+    zanCell
+  },
+
+  props: {
+    type: {
+      type: String,
+      default: 'text',
+      validator(value) {
+        return VALID_TYPES.indexOf(value) > -1;
+      }
+    },
+    placeholder: String,
+    value: {},
+    label: String,
+    disabled: Boolean,
+    error: Boolean,
+    readonly: Boolean,
+    required: Boolean,
+    maxlength: [String, Number],
+    border: Boolean,
+    rows: [String, Number],
+    cols: [String, Number],
+    autosize: {
+      type: Boolean,
+      default: false
+    }
+  },
+
+  data() {
+    return {
+      currentValue: this.value
+    };
+  },
+
+  watch: {
+    value(val) {
+      this.currentValue = val;
+    },
+
+    currentValue(val) {
+      if (this.autosize && this.type === 'textarea') this.sizeAdjust();
+      this.$emit('input', val);
+    }
+  },
+
+  methods: {
+    handleInput(event) {
+      this.currentValue = event.target.value;
+    },
+
+    sizeAdjust() {
+      const textareaElement = this.$refs.textareaElement;
+      const textAreaDiff = (parseInt(textareaElement.style.paddingBottom, 10) +
+          parseInt(textareaElement.style.paddingTop, 10)) || 0;
+      // 需要先设为0， 才可以让scrollHeight正确计算。
+      textareaElement.style.height = 0 + 'px';
+      textareaElement.style.height = (textareaElement.scrollHeight - textAreaDiff) + 'px';
+    },
+
+    handleInputFocus() {
+      this.$emit('focus');
+    }
+  }
+};
+</script>