autoFill 支持多选

docs/zh-CN/components/form/file.md

@@ -143,6 +143,31 @@ order: 21
 
 这样上传成功后，会把接口中的 `url` 变量，赋值给 `myUrl` 变量
 
+**多选模式**
+
+当表单项为多选模式时，不能再直接取选项中的值了，而是通过 `items` 变量来取，通过它可以获取当前选中的选项集合。
+
+```schema: scope="body"
+{
+  "type": "form",
+  "debug": true,
+  "api": "https://3xsw4ap8wah59.cfc-execute.bj.baidubce.com/api/amis-mock/mock2/form/saveForm",
+  "controls": [
+    {
+      "type": "file",
+      "name": "file",
+      "label": "File",
+      "multiple": true,
+      "receiver": "https://3xsw4ap8wah59.cfc-execute.bj.baidubce.com/api/amis-mock/upload/file",
+      "autoFill": {
+        "myUrl": "${items|pick:url}",
+        "lastUrl": "${items|last|pick:url}"
+      }
+    }
+  ]
+}
+```
+
 ## 属性表
 
 除了支持 [普通表单项属性表](./formitem#%E5%B1%9E%E6%80%A7%E8%A1%A8) 中的配置以外，还支持下面一些配置

docs/zh-CN/components/form/image.md

@@ -156,6 +156,31 @@ order: 27
 
 这样上传成功后，会把接口中的 `url` 变量，赋值给 `myUrl` 变量
 
+**多选模式**
+
+当表单项为多选模式时，不能再直接取选项中的值了，而是通过 `items` 变量来取，通过它可以获取当前选中的选项集合。
+
+```schema: scope="body"
+{
+  "type": "form",
+  "debug": true,
+  "api": "https://3xsw4ap8wah59.cfc-execute.bj.baidubce.com/api/amis-mock/mock2/form/saveForm",
+  "controls": [
+    {
+      "type": "image",
+      "name": "image",
+      "label": "image",
+      "multiple": true,
+      "receiver": "https://3xsw4ap8wah59.cfc-execute.bj.baidubce.com/api/amis-mock/upload/file",
+      "autoFill": {
+        "myUrl": "${items|pick:url}",
+        "lastUrl": "${items|last|pick:url}"
+      }
+    }
+  ]
+}
+```
+
 ## 属性表
 
 除了支持 [普通表单项属性表](./formitem#%E5%B1%9E%E6%80%A7%E8%A1%A8) 中的配置以外，还支持下面一些配置

docs/zh-CN/components/form/options.md

@@ -1265,12 +1265,13 @@ order: 2
 
 ## 自动填充 autoFill
 
-一些选择器组件，支持配置`autoFill`，将当前已选中的选项的某个字段的值，自动填充到表单中某个表单项中，**只在单选时有效**，支持[数据映射](../../../docs/concepts/data-mapping)
+一些选择器组件，支持配置`autoFill`，将当前已选中的选项的某个字段的值，自动填充到表单中某个表单项中，支持[数据映射](../../../docs/concepts/data-mapping)
 
 ```schema: scope="body"
 {
     "type": "form",
     "api": "https://3xsw4ap8wah59.cfc-execute.bj.baidubce.com/api/amis-mock/mock2/form/saveForm",
+    "debug": true,
     "controls": [
         {
             "type": "select",
@@ -1279,6 +1280,7 @@ order: 2
             "autoFill": {
                 "option": "${label}"
             },
+            "clearable": true,
             "options": [
                 {
                     "label": "Option A",
@@ -1301,6 +1303,41 @@ order: 2
 
 上例中我们配置了`"autoFill": {"option": "${label}"}`，表示将选中项中的`label`的值，自动填充到当前表单项中`name`为`option`的文本框中。
 
+**多选模式**
+
+当表单项为多选模式时，不能再直接取选项中的值了，而是通过 `items` 变量来取，通过它可以获取当前选中的选项集合。
+
+```schema: scope="body"
+{
+    "type": "form",
+    "api": "https://3xsw4ap8wah59.cfc-execute.bj.baidubce.com/api/amis-mock/mock2/form/saveForm",
+    "debug": true,
+    "controls": [
+        {
+            "type": "select",
+            "label": "选项",
+            "name": "select",
+            "autoFill": {
+                "options": "${items|pick:label}",
+                "firstOption": "${items|first|pick:label}"
+            },
+            "multiple": true,
+            "clearable": true,
+            "options": [
+                {
+                    "label": "Option A",
+                    "value": "a"
+                },
+                {
+                    "label": "Option B",
+                    "value": "b"
+                }
+            ]
+        }
+    ]
+}
+```
+
 支持该配置项的有：ButtonGroup、List、NestedSelect、Picker、Radios、Select。
 
 ## 属性表

src/components/Select.tsx

@@ -807,6 +807,7 @@ export class Select extends React.Component<SelectProps, SelectState> {
                 this.handleChange(item);
               }}
               disabled={item.disabled}
+              size="sm"
             >
               {item.disabled
                 ? item[labelField]
@@ -867,6 +868,7 @@ export class Select extends React.Component<SelectProps, SelectState> {
               checked={checkedPartial}
               partial={checkedPartial && !checkedAll}
               onChange={this.toggleCheckAll}
+              size="sm"
             >
               {__(checkAllLabel)}
             </Checkbox>
@@ -874,7 +876,11 @@ export class Select extends React.Component<SelectProps, SelectState> {
         ) : null}
 
         <div ref={this.menuItemRef} className={cx('Select-option invisible')}>
+          {multiple ? (
+            <Checkbox size="sm">Placeholder</Checkbox>
+          ) : (
             <span>Placeholder</span>
+          )}
         </div>
 
         {creatable && !disabled ? (

src/renderers/Form/File.tsx

@@ -605,7 +605,7 @@ export default class FileControl extends React.Component<FileProps, FileState> {
       return;
     }
 
-    const {translate: __, multiple, autoFill, onBulkChange} = this.props;
+    const {translate: __} = this.props;
     const nameField = this.props.nameField || 'name';
     const file = find(
       this.state.files,
@@ -647,17 +647,7 @@ export default class FileControl extends React.Component<FileProps, FileState> {
                   error: error ? error : null,
                   files: files
                 },
-                () => {
+                this.tick
-                  // todo 这个逻辑应该移到 onChange 里面去，因为这个时候并不一定修改了表单项的值。
-                  const sendTo =
-                    !multiple &&
-                    autoFill &&
-                    !isEmpty(autoFill) &&
-                    dataMapping(autoFill, obj || {});
-                  sendTo && onBulkChange(sendTo);
-
-                  this.tick();
-                }
               );
             },
             progress => {
@@ -816,7 +806,9 @@ export default class FileControl extends React.Component<FileProps, FileState> {
       valueField,
       delimiter,
       resetValue,
-      asBlob
+      asBlob,
+      autoFill,
+      onBulkChange
     } = this.props;
 
     const files = this.state.files.filter(
@@ -841,6 +833,18 @@ export default class FileControl extends React.Component<FileProps, FileState> {
     }
 
     onChange((this.emitValue = value), undefined, changeImmediately);
+
+    if (!isEmpty(autoFill)) {
+      const toSync = dataMapping(
+        autoFill,
+        multiple
+          ? {
+              items: files
+            }
+          : files[0]
+      );
+      onBulkChange(toSync);
+    }
   }
 
   uploadFile(

src/renderers/Form/Image.tsx

@@ -571,7 +571,6 @@ export default class ImageControl extends React.Component<
   }
 
   tick() {
-    const {multiple, autoFill, onBulkChange} = this.props;
     if (this.current || !this.state.uploading) {
       return;
     }
@@ -632,17 +631,7 @@ export default class ImageControl extends React.Component<
                 {
                   files: (this.files = files)
                 },
-                () => {
+                this.tick
-                  // todo 这个逻辑应该移到 onChange 里面去，因为这个时候并不一定修改了表单项的值。
-                  const sendTo =
-                    !multiple &&
-                    autoFill &&
-                    !isEmpty(autoFill) &&
-                    dataMapping(autoFill, newFile || {});
-                  sendTo && onBulkChange(sendTo);
-
-                  this.tick();
-                }
               );
             },
             progress => {
@@ -734,7 +723,9 @@ export default class ImageControl extends React.Component<
       joinValues,
       extractValue,
       delimiter,
-      valueField
+      valueField,
+      autoFill,
+      onBulkChange
     } = this.props;
 
     const files = this.files.filter(
@@ -762,6 +753,18 @@ export default class ImageControl extends React.Component<
     }
 
     onChange((this.emitValue = newValue || ''), undefined, changeImmediately);
+
+    if (!isEmpty(autoFill)) {
+      const toSync = dataMapping(
+        autoFill,
+        multiple
+          ? {
+              items: files
+            }
+          : files[0]
+      );
+      onBulkChange(toSync);
+    }
   }
 
   handleSelect() {

src/store/formItem.ts

@@ -391,6 +391,7 @@ export const FormItemStore = StoreNode.named('FormItemStore')
       self.options = options;
       syncOptions(originOptions);
       let selectedOptions;
+      let skipAyncAutoFill = false;
 
       if (
         self.selectFirst &&
@@ -422,10 +423,11 @@ export const FormItemStore = StoreNode.named('FormItemStore')
           onChange(value);
         } else {
           changeValue(value, !form.inited);
+          skipAyncAutoFill = true; // changeValue 里面本来就会调用 syncAutoFill 所以跳过
         }
       }
 
-      syncAutoFill(self.value, !form.inited);
+      skipAyncAutoFill || syncAutoFill(self.value, !form.inited);
     }
 
     let loadCancel: Function | null = null;
@@ -799,20 +801,26 @@ export const FormItemStore = StoreNode.named('FormItemStore')
       value: any = self.value,
       isPrintine: boolean = false
     ) {
-      if (
+      if (self.autoFill && !isEmpty(self.autoFill) && self.options.length) {
-        !self.multiple &&
-        self.autoFill &&
-        !isEmpty(self.autoFill) &&
-        self.options.length
-      ) {
         const selectedOptions = self.getSelectedOptions(value);
-        if (selectedOptions.length !== 1) {
-          return;
-        }
-
         const toSync = dataMapping(
           self.autoFill,
+          self.multiple
+            ? {
+                items: selectedOptions.map(item =>
                   createObject(
+                    {
+                      ancestors: getTreeAncestors(
+                        self.filteredOptions,
+                        item,
+                        true
+                      )
+                    },
+                    item
+                  )
+                )
+              }
+            : createObject(
                 {
                   ancestors: getTreeAncestors(
                     self.filteredOptions,