feat(Field): add selection-start、selection-end prop (#1898)

packages/field/README.md

@@ -169,6 +169,8 @@ Page({
 | cursor-spacing | 输入框聚焦时底部与键盘的距离 | `Number` | `50` |
 | adjust-position | 键盘弹起时，是否自动上推页面 | `Boolean` | `true` |
 | show-confirm-bar | 是否显示键盘上方带有”完成“按钮那一栏，只对 textarea 有效 | `Boolean` | `true` |
+| selection-start | 光标起始位置，自动聚集时有效，需与 selection-end 搭配使用 | `Number` | `-1` |
+| selection-end | 光标结束位置，自动聚集时有效，需与 selection-start 搭配使用 | `Number` | `-1` |
 
 ### Events
 

packages/field/index.ts

@@ -32,6 +32,14 @@ VantComponent({
     placeholder: String,
     placeholderStyle: String,
     errorMessageAlign: String,
+    selectionEnd: {
+      type: Number,
+      value: -1
+    },
+    selectionStart: {
+      type: Number,
+      value: -1
+    },
     showConfirmBar: {
       type: Boolean,
       value: true

packages/field/index.wxml

@@ -27,6 +27,8 @@
       cursor-spacing="{{ cursorSpacing }}"
       adjust-position="{{ adjustPosition }}"
       show-confirm-bar="{{ showConfirmBar }}"
+      selection-end="{{ selectionEnd }}"
+      selection-start="{{ selectionStart }}"
       bindinput="onInput"
       bind:blur="onBlur"
       bind:focus="onFocus"
@@ -51,6 +53,8 @@
       confirm-hold="{{ confirmHold }}"
       cursor-spacing="{{ cursorSpacing }}"
       adjust-position="{{ adjustPosition }}"
+      selection-end="{{ selectionEnd }}"
+      selection-start="{{ selectionStart }}"
       password="{{ password || type === 'password' }}"
       bindinput="onInput"
       bind:blur="onBlur"