antd-mini
Version:
antd-mini 是支付宝小程序 UI 组件库，遵循 Ant Design 规范。
244 lines (243 loc) • 11.2 kB
JavaScript
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import { Component, getValueFromProps, triggerEvent, triggerEventOnly, triggerEventValues, } from '../../_util/simply';
import { resolveEventValue, resolveEventValues } from '../../_util/platform';
import { CascaderDefaultProps } from './props';
import equal from 'fast-deep-equal';
import mixinValue from '../../mixins/value';
Component(CascaderDefaultProps, {
// visible受控判断
isVisibleControlled: function () {
return getValueFromProps(this, 'visible') !== null;
},
initColumns: function () {
var _a = getValueFromProps(this, [
'options',
'visible',
'defaultVisible',
'value',
'defaultValue',
]), options = _a[0], visible = _a[1], defaultVisible = _a[2], value = _a[3], defaultValue = _a[4];
var realValue = value || defaultValue || [];
var columns = this.getterColumns(realValue, options);
// 首次无需校验value有效性，onOk时会校验
this.setData({
columns: columns,
visible: this.isVisibleControlled() ? visible : defaultVisible,
currentValue: realValue,
formattedValueText: this.onFormat(),
});
},
getterColumns: function (value, options) {
var getColumns = function (options, value, columns) {
var _a;
if (columns === void 0) { columns = []; }
columns.push(options.map(function (v) { return ({ value: v.value, label: v.label }); }));
var currentOption = options.find(function (v) { return v.value === (value === null || value === void 0 ? void 0 : value[columns.length - 1]); }) ||
options[0];
if (((_a = currentOption === null || currentOption === void 0 ? void 0 : currentOption.children) === null || _a === void 0 ? void 0 : _a.length) > 0) {
return getColumns(currentOption.children, value, columns);
}
return columns;
};
return getColumns(options, value);
},
// 获取有效value，若从x项开始在columns里找不到，则从此项开始都选第一条
getValidValue: function (value, columns) {
var result = [];
var _loop_1 = function (i) {
if (!columns[i].some(function (v) { return (v === null || v === void 0 ? void 0 : v.value) === (value === null || value === void 0 ? void 0 : value[i]); })) {
result.push.apply(result, columns.slice(i).map(function (v) { var _a; return (_a = v === null || v === void 0 ? void 0 : v[0]) === null || _a === void 0 ? void 0 : _a.value; }));
return "break";
}
else {
result[i] = value[i];
}
};
for (var i = 0; i < columns.length; i++) {
var state_1 = _loop_1(i);
if (state_1 === "break")
break;
}
return result;
},
getOptionByValue: function (value) {
var _a;
var options = getValueFromProps(this, 'options');
if (!((value === null || value === void 0 ? void 0 : value.length) > 0))
return null;
var result = [];
var item = options.find(function (v) { return v.value === value[0]; });
var _loop_2 = function (i) {
if (!item) {
return { value: null };
}
result.push({
value: item.value,
label: item.label,
});
item = (_a = item.children) === null || _a === void 0 ? void 0 : _a.find(function (v) { return v.value === value[i + 1]; });
};
for (var i = 0; i < value.length; i++) {
var state_2 = _loop_2(i);
if (typeof state_2 === "object")
return state_2.value;
}
return result;
},
onChange: function (selectedVal) {
var selectedValue = resolveEventValues(selectedVal)[0];
var options = getValueFromProps(this, 'options');
var columns = this.data.columns;
var newColumns = this.getterColumns(selectedValue, options);
// columns没变化说明selectedValue在范围内，无需重置
var newData = {};
if (!equal(columns, newColumns)) {
selectedValue = this.getValidValue(selectedValue, newColumns);
newData.columns = newColumns;
}
newData.currentValue = selectedValue;
this.setData(newData);
triggerEventValues(this, 'change', [
selectedValue,
this.getOptionByValue(selectedValue),
]);
},
onOk: function () {
return __awaiter(this, void 0, void 0, function () {
var currentValue, options, newColumns, validValue;
return __generator(this, function (_a) {
currentValue = this.data.currentValue;
options = getValueFromProps(this, 'options');
newColumns = this.getterColumns(currentValue, options);
validValue = this.getValidValue(currentValue, newColumns);
if (!this.isControlled()) {
this.update(validValue);
}
triggerEventValues(this, 'ok', [
validValue,
this.getOptionByValue(validValue),
]);
return [2 /*return*/];
});
});
},
onVisibleChange: function (visible) {
var _this = this;
var options = getValueFromProps(this, 'options');
var columns = this.data.columns;
var realValue = this.getValue();
if (!this.isVisibleControlled() && visible) {
var newColumns_1 = this.getterColumns(realValue, options);
if (!equal(columns, newColumns_1)) {
this.setData({ columns: newColumns_1 }, function () {
_this.setData({
currentValue: _this.getValidValue(realValue, newColumns_1),
formattedValueText: _this.onFormat(),
});
});
}
}
triggerEvent(this, 'visibleChange', resolveEventValue(visible));
},
defaultFormat: function (value, options) {
if (options) {
return options.map(function (v) { return v.label; }).join('');
}
return '';
},
onFormat: function () {
var realValue = this.getValue();
var onFormat = getValueFromProps(this, 'onFormat');
var formatValueByProps = onFormat && onFormat(realValue, this.getOptionByValue(realValue));
if (formatValueByProps !== undefined && formatValueByProps !== null) {
return formatValueByProps;
}
return this.defaultFormat(realValue, this.getOptionByValue(realValue));
},
onCancel: function (e) {
triggerEventOnly(this, 'cancel', e);
},
}, {
currentValue: [],
columns: [],
formattedValueText: '',
visible: false,
}, [mixinValue()], {
created: function () {
this.initColumns();
},
observers: {
'**': function (data) {
var prevData = this._prevData || this.data;
this._prevData = __assign({}, data);
var options = getValueFromProps(this, 'options');
if (!equal(options, prevData.options)) {
var currentValue = this.data.currentValue;
var newColumns = this.getterColumns(currentValue, options);
this.setData({
columns: newColumns,
});
}
if (!this.isEqualValue(prevData)) {
var realValue = this.getValue();
var newColumns = this.getterColumns(realValue, options);
var currentValue = this.getValidValue(realValue, newColumns);
this.setData({ currentValue: currentValue, formattedValueText: this.onFormat() });
}
},
'visible': function (data) {
var prevVisible = this._prevVisible;
this._prevVisible = data;
var visible = getValueFromProps(this, 'visible');
if (this.isVisibleControlled() && !equal(prevVisible, visible)) {
this.setData({ visible: visible });
}
},
},
});