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wechat/miniprogram/node_modules/@vant/weapp/dist/checkbox/index.js

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+import { useParent } from '../common/relation';
+import { VantComponent } from '../common/component';
+function emit(target, value) {
+  target.$emit('input', value);
+  target.$emit('change', value);
+}
+VantComponent({
+  field: true,
+  relation: useParent('checkbox-group'),
+  classes: ['icon-class', 'label-class'],
+  props: {
+    value: Boolean,
+    disabled: Boolean,
+    useIconSlot: Boolean,
+    checkedColor: String,
+    labelPosition: {
+      type: String,
+      value: 'right',
+    },
+    labelDisabled: Boolean,
+    shape: {
+      type: String,
+      value: 'round',
+    },
+    iconSize: {
+      type: null,
+      value: 20,
+    },
+  },
+  data: {
+    parentDisabled: false,
+  },
+  methods: {
+    emitChange(value) {
+      if (this.parent) {
+        this.setParentValue(this.parent, value);
+      } else {
+        emit(this, value);
+      }
+    },
+    toggle() {
+      const { parentDisabled, disabled, value } = this.data;
+      if (!disabled && !parentDisabled) {
+        this.emitChange(!value);
+      }
+    },
+    onClickLabel() {
+      const { labelDisabled, parentDisabled, disabled, value } = this.data;
+      if (!disabled && !labelDisabled && !parentDisabled) {
+        this.emitChange(!value);
+      }
+    },
+    setParentValue(parent, value) {
+      const parentValue = parent.data.value.slice();
+      const { name } = this.data;
+      const { max } = parent.data;
+      if (value) {
+        if (max && parentValue.length >= max) {
+          return;
+        }
+        if (parentValue.indexOf(name) === -1) {
+          parentValue.push(name);
+          emit(parent, parentValue);
+        }
+      } else {
+        const index = parentValue.indexOf(name);
+        if (index !== -1) {
+          parentValue.splice(index, 1);
+          emit(parent, parentValue);
+        }
+      }
+    },
+  },
+});