智慧宿舍系统小程序

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

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+import { VantComponent } from '../common/component';
+import { pickerProps } from '../picker/shared';
+import { requestAnimationFrame } from '../common/utils';
+const EMPTY_CODE = '000000';
+VantComponent({
+  classes: ['active-class', 'toolbar-class', 'column-class'],
+  props: Object.assign(Object.assign({}, pickerProps), {
+    value: {
+      type: String,
+      observer(value) {
+        this.code = value;
+        this.setValues();
+      },
+    },
+    areaList: {
+      type: Object,
+      value: {},
+      observer: 'setValues',
+    },
+    columnsNum: {
+      type: null,
+      value: 3,
+    },
+    columnsPlaceholder: {
+      type: Array,
+      observer(val) {
+        this.setData({
+          typeToColumnsPlaceholder: {
+            province: val[0] || '',
+            city: val[1] || '',
+            county: val[2] || '',
+          },
+        });
+      },
+    },
+  }),
+  data: {
+    columns: [{ values: [] }, { values: [] }, { values: [] }],
+    typeToColumnsPlaceholder: {},
+  },
+  mounted() {
+    requestAnimationFrame(() => {
+      this.setValues();
+    });
+  },
+  methods: {
+    getPicker() {
+      if (this.picker == null) {
+        this.picker = this.selectComponent('.van-area__picker');
+      }
+      return this.picker;
+    },
+    onCancel(event) {
+      this.emit('cancel', event.detail);
+    },
+    onConfirm(event) {
+      const { index } = event.detail;
+      let { value } = event.detail;
+      value = this.parseValues(value);
+      this.emit('confirm', { value, index });
+    },
+    emit(type, detail) {
+      detail.values = detail.value;
+      delete detail.value;
+      this.$emit(type, detail);
+    },
+    parseValues(values) {
+      const { columnsPlaceholder } = this.data;
+      return values.map((value, index) => {
+        if (
+          value &&
+          (!value.code || value.name === columnsPlaceholder[index])
+        ) {
+          return Object.assign(Object.assign({}, value), {
+            code: '',
+            name: '',
+          });
+        }
+        return value;
+      });
+    },
+    onChange(event) {
+      var _a;
+      const { index, picker, value } = event.detail;
+      this.code = value[index].code;
+      (_a = this.setValues()) === null || _a === void 0
+        ? void 0
+        : _a.then(() => {
+            this.$emit('change', {
+              picker,
+              values: this.parseValues(picker.getValues()),
+              index,
+            });
+          });
+    },
+    getConfig(type) {
+      const { areaList } = this.data;
+      return (areaList && areaList[`${type}_list`]) || {};
+    },
+    getList(type, code) {
+      if (type !== 'province' && !code) {
+        return [];
+      }
+      const { typeToColumnsPlaceholder } = this.data;
+      const list = this.getConfig(type);
+      let result = Object.keys(list).map((code) => ({
+        code,
+        name: list[code],
+      }));
+      if (code != null) {
+        // oversea code
+        if (code[0] === '9' && type === 'city') {
+          code = '9';
+        }
+        result = result.filter((item) => item.code.indexOf(code) === 0);
+      }
+      if (typeToColumnsPlaceholder[type] && result.length) {
+        // set columns placeholder
+        const codeFill =
+          type === 'province'
+            ? ''
+            : type === 'city'
+            ? EMPTY_CODE.slice(2, 4)
+            : EMPTY_CODE.slice(4, 6);
+        result.unshift({
+          code: `${code}${codeFill}`,
+          name: typeToColumnsPlaceholder[type],
+        });
+      }
+      return result;
+    },
+    getIndex(type, code) {
+      let compareNum = type === 'province' ? 2 : type === 'city' ? 4 : 6;
+      const list = this.getList(type, code.slice(0, compareNum - 2));
+      // oversea code
+      if (code[0] === '9' && type === 'province') {
+        compareNum = 1;
+      }
+      code = code.slice(0, compareNum);
+      for (let i = 0; i < list.length; i++) {
+        if (list[i].code.slice(0, compareNum) === code) {
+          return i;
+        }
+      }
+      return 0;
+    },
+    setValues() {
+      const picker = this.getPicker();
+      if (!picker) {
+        return;
+      }
+      let code = this.code || this.getDefaultCode();
+      const provinceList = this.getList('province');
+      const cityList = this.getList('city', code.slice(0, 2));
+      const stack = [];
+      const indexes = [];
+      const { columnsNum } = this.data;
+      if (columnsNum >= 1) {
+        stack.push(picker.setColumnValues(0, provinceList, false));
+        indexes.push(this.getIndex('province', code));
+      }
+      if (columnsNum >= 2) {
+        stack.push(picker.setColumnValues(1, cityList, false));
+        indexes.push(this.getIndex('city', code));
+        if (cityList.length && code.slice(2, 4) === '00') {
+          [{ code }] = cityList;
+        }
+      }
+      if (columnsNum === 3) {
+        stack.push(
+          picker.setColumnValues(
+            2,
+            this.getList('county', code.slice(0, 4)),
+            false
+          )
+        );
+        indexes.push(this.getIndex('county', code));
+      }
+      return Promise.all(stack)
+        .catch(() => {})
+        .then(() => picker.setIndexes(indexes))
+        .catch(() => {});
+    },
+    getDefaultCode() {
+      const { columnsPlaceholder } = this.data;
+      if (columnsPlaceholder.length) {
+        return EMPTY_CODE;
+      }
+      const countyCodes = Object.keys(this.getConfig('county'));
+      if (countyCodes[0]) {
+        return countyCodes[0];
+      }
+      const cityCodes = Object.keys(this.getConfig('city'));
+      if (cityCodes[0]) {
+        return cityCodes[0];
+      }
+      return '';
+    },
+    getValues() {
+      const picker = this.getPicker();
+      if (!picker) {
+        return [];
+      }
+      return this.parseValues(picker.getValues().filter((value) => !!value));
+    },
+    getDetail() {
+      const values = this.getValues();
+      const area = {
+        code: '',
+        country: '',
+        province: '',
+        city: '',
+        county: '',
+      };
+      if (!values.length) {
+        return area;
+      }
+      const names = values.map((item) => item.name);
+      area.code = values[values.length - 1].code;
+      if (area.code[0] === '9') {
+        area.country = names[1] || '';
+        area.province = names[2] || '';
+      } else {
+        area.province = names[0] || '';
+        area.city = names[1] || '';
+        area.county = names[2] || '';
+      }
+      return area;
+    },
+    reset(code) {
+      this.code = code || '';
+      return this.setValues();
+    },
+  },
+});