243 lines
9.2 KiB
Vue
243 lines
9.2 KiB
Vue
<template>
|
|
<uni-shadow-root class="vant-dist-cascader-index"><view v-if="showHeader" class="van-cascader__header">
|
|
<text class="van-cascader__title"><slot name="title"></slot>{{ title }}</text>
|
|
<van-icon v-if="closeable" :name="closeIcon" class="van-cascader__close-icon" @click.native="onClose"></van-icon>
|
|
</view>
|
|
|
|
<van-tabs :active="activeTab" custom-class="van-cascader__tabs" wrap-class="van-cascader__tabs-wrap" tab-class="van-cascader__tab" :color="activeColor" :border="false" :swipeable="swipeable" @click="onClickTab">
|
|
<van-tab v-for="(tab,tabIndex) in (tabs)" :key="tab.tabIndex" :title="tab.selected ? tab.selected[textKey] : placeholder" style="width: 100%;" :title-style="(!tab.selected ? 'color: #969799;font-weight:normal;' : '')">
|
|
|
|
|
|
|
|
<view class="van-cascader__options">
|
|
<view v-for="(option,index) in (tab.options)" :key="option.index" :class="(option.className)+' '+(utils.optionClass(tab, textKey, option))" :style="utils.optionStyle({ tab, textKey, option, activeColor })" :data-option="option" :data-tab-index="tabIndex" @click="onSelect">
|
|
<text>{{ option[textKey] }}</text>
|
|
<van-icon v-if="utils.isSelected(tab, textKey, option)" name="success" size="18"></van-icon>
|
|
</view>
|
|
</view>
|
|
|
|
|
|
</van-tab>
|
|
</van-tabs></uni-shadow-root>
|
|
</template>
|
|
<wxs src="./index.wxs" module="utils"></wxs>
|
|
<script>
|
|
import VanIcon from '../icon/index.vue'
|
|
import VanTab from '../tab/index.vue'
|
|
import VanTabs from '../tabs/index.vue'
|
|
global['__wxVueOptions'] = {components:{'van-icon': VanIcon,'van-tab': VanTab,'van-tabs': VanTabs}}
|
|
|
|
global['__wxRoute'] = 'vant/dist/cascader/index'
|
|
import { VantComponent } from '../common/component';
|
|
var FieldName;
|
|
(function (FieldName) {
|
|
FieldName["TEXT"] = "text";
|
|
FieldName["VALUE"] = "value";
|
|
FieldName["CHILDREN"] = "children";
|
|
})(FieldName || (FieldName = {}));
|
|
const defaultFieldNames = {
|
|
text: FieldName.TEXT,
|
|
value: FieldName.VALUE,
|
|
children: FieldName.CHILDREN,
|
|
};
|
|
VantComponent({
|
|
props: {
|
|
title: String,
|
|
value: {
|
|
type: String,
|
|
observer: 'updateValue',
|
|
},
|
|
placeholder: {
|
|
type: String,
|
|
value: '请选择',
|
|
},
|
|
activeColor: {
|
|
type: String,
|
|
value: '#1989fa',
|
|
},
|
|
options: {
|
|
type: Array,
|
|
value: [],
|
|
observer: 'updateOptions',
|
|
},
|
|
swipeable: {
|
|
type: Boolean,
|
|
value: false,
|
|
},
|
|
closeable: {
|
|
type: Boolean,
|
|
value: true,
|
|
},
|
|
showHeader: {
|
|
type: Boolean,
|
|
value: true,
|
|
},
|
|
closeIcon: {
|
|
type: String,
|
|
value: 'cross',
|
|
},
|
|
fieldNames: {
|
|
type: Object,
|
|
value: defaultFieldNames,
|
|
observer: 'updateFieldNames',
|
|
},
|
|
},
|
|
data: {
|
|
tabs: [],
|
|
activeTab: 0,
|
|
textKey: FieldName.TEXT,
|
|
valueKey: FieldName.VALUE,
|
|
childrenKey: FieldName.CHILDREN,
|
|
},
|
|
created() {
|
|
this.updateTabs();
|
|
},
|
|
methods: {
|
|
updateOptions(val, oldVal) {
|
|
const isAsync = !!(val.length && oldVal.length);
|
|
this.updateTabs(isAsync);
|
|
},
|
|
updateValue(val) {
|
|
if (val !== undefined) {
|
|
const values = this.data.tabs.map((tab) => tab.selected && tab.selected[this.data.valueKey]);
|
|
if (values.indexOf(val) > -1) {
|
|
return;
|
|
}
|
|
}
|
|
this.updateTabs();
|
|
},
|
|
updateFieldNames() {
|
|
const { text = 'text', value = 'value', children = 'children', } = this.data.fieldNames || defaultFieldNames;
|
|
this.setData({
|
|
textKey: text,
|
|
valueKey: value,
|
|
childrenKey: children,
|
|
});
|
|
},
|
|
getSelectedOptionsByValue(options, value) {
|
|
for (let i = 0; i < options.length; i++) {
|
|
const option = options[i];
|
|
if (option[this.data.valueKey] === value) {
|
|
return [option];
|
|
}
|
|
if (option[this.data.childrenKey]) {
|
|
const selectedOptions = this.getSelectedOptionsByValue(option[this.data.childrenKey], value);
|
|
if (selectedOptions) {
|
|
return [option, ...selectedOptions];
|
|
}
|
|
}
|
|
}
|
|
},
|
|
updateTabs(isAsync = false) {
|
|
const { options, value } = this.data;
|
|
if (value !== undefined) {
|
|
const selectedOptions = this.getSelectedOptionsByValue(options, value);
|
|
if (selectedOptions) {
|
|
let optionsCursor = options;
|
|
const tabs = selectedOptions.map((option) => {
|
|
const tab = {
|
|
options: optionsCursor,
|
|
selected: option,
|
|
};
|
|
const next = optionsCursor.find((item) => item[this.data.valueKey] === option[this.data.valueKey]);
|
|
if (next) {
|
|
optionsCursor = next[this.data.childrenKey];
|
|
}
|
|
return tab;
|
|
});
|
|
if (optionsCursor) {
|
|
tabs.push({
|
|
options: optionsCursor,
|
|
selected: null,
|
|
});
|
|
}
|
|
this.setData({
|
|
tabs,
|
|
});
|
|
wx.nextTick(() => {
|
|
this.setData({
|
|
activeTab: tabs.length - 1,
|
|
});
|
|
});
|
|
return;
|
|
}
|
|
}
|
|
// 异步更新
|
|
if (isAsync) {
|
|
const { tabs } = this.data;
|
|
tabs[tabs.length - 1].options =
|
|
options[options.length - 1][this.data.childrenKey];
|
|
this.setData({
|
|
tabs,
|
|
});
|
|
return;
|
|
}
|
|
this.setData({
|
|
tabs: [
|
|
{
|
|
options,
|
|
selected: null,
|
|
},
|
|
],
|
|
});
|
|
},
|
|
onClose() {
|
|
this.$emit('close');
|
|
},
|
|
onClickTab(e) {
|
|
const { index: tabIndex, title } = e.detail;
|
|
this.$emit('click-tab', { title, tabIndex });
|
|
this.setData({
|
|
activeTab: tabIndex,
|
|
});
|
|
},
|
|
// 选中
|
|
onSelect(e) {
|
|
const { option, tabIndex } = e.currentTarget.dataset;
|
|
if (option && option.disabled) {
|
|
return;
|
|
}
|
|
const { valueKey, childrenKey } = this.data;
|
|
let { tabs } = this.data;
|
|
tabs[tabIndex].selected = option;
|
|
if (tabs.length > tabIndex + 1) {
|
|
tabs = tabs.slice(0, tabIndex + 1);
|
|
}
|
|
if (option[childrenKey]) {
|
|
const nextTab = {
|
|
options: option[childrenKey],
|
|
selected: null,
|
|
};
|
|
if (tabs[tabIndex + 1]) {
|
|
tabs[tabIndex + 1] = nextTab;
|
|
}
|
|
else {
|
|
tabs.push(nextTab);
|
|
}
|
|
wx.nextTick(() => {
|
|
this.setData({
|
|
activeTab: tabIndex + 1,
|
|
});
|
|
});
|
|
}
|
|
this.setData({
|
|
tabs,
|
|
});
|
|
const selectedOptions = tabs.map((tab) => tab.selected).filter(Boolean);
|
|
const params = {
|
|
value: option[valueKey],
|
|
tabIndex,
|
|
selectedOptions,
|
|
};
|
|
this.$emit('change', params);
|
|
if (!option[childrenKey]) {
|
|
this.$emit('finish', params);
|
|
}
|
|
},
|
|
},
|
|
});
|
|
export default global['__wxComponents']['vant/dist/cascader/index']
|
|
</script>
|
|
<style platform="mp-weixin">
|
|
@import '../common/index.css';.van-cascader__header{align-items:center;display:flex;height:48px;justify-content:space-between;padding:0 16px}.van-cascader__title{font-size:16px;font-weight:600;line-height:20px}.van-cascader__close-icon{color:#c8c9cc;font-size:22px;height:22px}.van-cascader__tabs-wrap{height:48px!important;padding:0 8px}.van-cascader__tab{color:#323233!important;flex:none!important;font-weight:600!important;padding:0 8px!important}.van-cascader__tab--unselected{color:#969799!important;font-weight:400!important}.van-cascader__option{align-items:center;cursor:pointer;display:flex;font-size:14px;justify-content:space-between;line-height:20px;padding:10px 16px}.van-cascader__option:active{background-color:#f2f3f5}.van-cascader__option--selected{color:#1989fa;font-weight:600}.van-cascader__option--disabled{color:#c8c9cc;cursor:not-allowed}.van-cascader__option--disabled:active{background-color:initial}.van-cascader__options{-webkit-overflow-scrolling:touch;box-sizing:border-box;height:384px;overflow-y:auto;padding-top:6px}
|
|
</style> |