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@ -12,26 +12,13 @@ |
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<u-popup :blur="blur" :maskCloseAble="maskCloseAble" mode="bottom" :popup="false" v-model="popupValue" length="auto" :safeAreaInsetBottom="safeAreaInsetBottom" @close="close" :z-index="uZIndex"> |
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<view class="u-select"> |
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<view class="u-select__header" @touchmove.stop.prevent=""> |
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<view |
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class="u-select__header__cancel u-select__header__btn" |
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:style="{ color: cancelColor }" |
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hover-class="u-hover-class" |
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:hover-stay-time="150" |
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@tap.stop="getResult('cancel')" |
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> |
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<view class="u-select__header__cancel u-select__header__btn" :style="{ color: cancelColor }" hover-class="u-hover-class" :hover-stay-time="150" @tap.stop="getResult('cancel')"> |
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{{ cancelText }} |
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</view> |
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<view class="u-select__header__title"> |
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{{ title }} |
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</view> |
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<view |
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class="u-select__header__confirm u-select__header__btn" |
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:style="{ color: moving ? cancelColor : confirmColor }" |
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hover-class="u-hover-class" |
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:hover-stay-time="150" |
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@touchmove.stop="" |
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@tap.stop="getResult('confirm')" |
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> |
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<view class="u-select__header__confirm u-select__header__btn" :style="{ color: moving ? cancelColor : confirmColor }" hover-class="u-hover-class" :hover-stay-time="150" @touchmove.stop="" @tap.stop="getResult('confirm')"> |
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{{ confirmText }} |
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</view> |
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</view> |
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@ -73,7 +60,7 @@ |
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*/ |
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export default { |
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emits: ["update:modelValue", "input", "confirm","cancel"], |
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emits: ['update:modelValue', 'input', 'confirm', 'cancel'], |
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props: { |
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// 通过双向绑定控制组件的弹出与收起 |
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value: { |
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@ -88,7 +75,7 @@ export default { |
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list: { |
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type: Array, |
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default() { |
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return []; |
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return [] |
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} |
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}, |
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// 是否显示边框 |
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@ -124,7 +111,7 @@ export default { |
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defaultValue: { |
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type: Array, |
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default() { |
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return [0]; |
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return [0] |
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} |
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}, |
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// 模式选择，single-column-单列，mutil-column-多列，mutil-column-auto-多列联动 |
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@ -166,7 +153,7 @@ export default { |
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blur: { |
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type: [Number, String], |
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default: 0 |
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}, |
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} |
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}, |
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data() { |
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return { |
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@ -183,197 +170,195 @@ export default { |
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columnNum: 0, |
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// 列是否还在滑动中，微信小程序如果在滑动中就点确定，结果可能不准确 |
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moving: false |
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}; |
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} |
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}, |
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watch: { |
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// 在select弹起的时候，重新初始化所有数据 |
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value: { |
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immediate: true, |
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handler(val) { |
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if(val) setTimeout(() => this.init(), 10); |
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this.popupValue = val; |
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if (val) setTimeout(() => this.init(), 10) |
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this.popupValue = val |
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} |
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}, |
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modelValue: { |
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immediate: true, |
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handler(val) { |
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if(val) setTimeout(() => this.init(), 10); |
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this.popupValue = val; |
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if (val) setTimeout(() => this.init(), 10) |
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this.popupValue = val |
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} |
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} |
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}, |
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}, |
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computed: { |
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uZIndex() { |
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// 如果用户有传递z-index值，优先使用 |
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return this.zIndex ? this.zIndex : this.$u.zIndex.popup; |
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}, |
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return this.zIndex ? this.zIndex : this.$u.zIndex.popup |
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} |
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}, |
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methods: { |
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// 标识滑动开始，只有微信小程序才有这样的事件 |
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pickstart() { |
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// #ifdef MP-WEIXIN |
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this.moving = true; |
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this.moving = true |
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// #endif |
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}, |
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// 标识滑动结束 |
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pickend() { |
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// #ifdef MP-WEIXIN |
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this.moving = false; |
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this.moving = false |
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// #endif |
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}, |
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init() { |
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this.setColumnNum(); |
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this.setDefaultSelector(); |
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this.setColumnData(); |
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this.setSelectValue(); |
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this.setColumnNum() |
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this.setDefaultSelector() |
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this.setColumnData() |
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this.setSelectValue() |
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}, |
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// 获取默认选中列下标 |
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setDefaultSelector() { |
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// 如果没有传入默认选中的值，生成长度为columnNum，用0填充的数组 |
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this.defaultSelector = this.defaultValue.length == this.columnNum ? this.defaultValue : Array(this.columnNum).fill(0); |
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this.lastSelectIndex = this.$u.deepClone(this.defaultSelector); |
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this.defaultSelector = this.defaultValue.length == this.columnNum ? this.defaultValue : Array(this.columnNum).fill(0) |
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this.lastSelectIndex = this.$u.deepClone(this.defaultSelector) |
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}, |
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// 计算列数 |
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setColumnNum() { |
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// 单列的列数为1 |
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if(this.mode == 'single-column') this.columnNum = 1; |
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if (this.mode == 'single-column') this.columnNum = 1 |
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// 多列时，this.list数组长度就是列数 |
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else if(this.mode == 'mutil-column') this.columnNum = this.list.length; |
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else if (this.mode == 'mutil-column') this.columnNum = this.list.length |
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// 多列联动时，通过历遍this.list的第一个元素，得出有多少列 |
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else if (this.mode == 'mutil-column-auto') { |
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let num = 1; |
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let column = this.list; |
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let num = 1 |
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let column = this.list |
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// 只要有元素并且第一个元素有children属性，继续历遍 |
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while (column[0][this.childName]) { |
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column = column[0] ? column[0][this.childName] : {}; |
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num ++; |
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column = column[0] ? column[0][this.childName] : {} |
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num++ |
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} |
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this.columnNum = num; |
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this.columnNum = num |
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} |
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}, |
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// 获取需要展示在picker中的列数据 |
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setColumnData() { |
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let data = []; |
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this.selectValue = []; |
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let data = [] |
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this.selectValue = [] |
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if (this.mode == 'mutil-column-auto') { |
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// 获得所有数据中的第一个元素 |
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let column = this.list[this.defaultSelector.length ? this.defaultSelector[0] : 0]; |
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let column = this.list[this.defaultSelector.length ? this.defaultSelector[0] : 0] |
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// 通过循环所有的列数，再根据设定列的数组，得出当前需要渲染的整个列数组 |
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for (let i = 0; i < this.columnNum; i++) { |
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// 第一列默认为整个list数组 |
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if (i == 0) { |
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data[i] = this.list; |
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column = column[this.childName]; |
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data[i] = this.list |
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column = column[this.childName] |
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} else { |
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// 大于第一列时，判断是否有默认选中的，如果没有就用该列的第一项 |
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data[i] = column; |
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column = column[this.defaultSelector[i]][this.childName]; |
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data[i] = column |
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column = column[this.defaultSelector[i]][this.childName] |
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} |
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} |
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} else if (this.mode == 'single-column') { |
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data[0] = this.list; |
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data[0] = this.list |
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} else { |
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data = this.list; |
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data = this.list |
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} |
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this.columnData = data; |
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this.columnData = data |
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}, |
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// 获取默认选中的值，如果没有设置defaultValue，就默认选中每列的第一个 |
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setSelectValue() { |
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let tmp = null; |
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let tmp = null |
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for (let i = 0; i < this.columnNum; i++) { |
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tmp = this.columnData[i][this.defaultSelector[i]]; |
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let data = { |
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tmp = this.columnData[i][this.defaultSelector[i]] |
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const data = { |
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value: tmp ? tmp[this.valueName] : null, |
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label: tmp ? tmp[this.labelName] : null |
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}; |
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} |
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// 判断是否存在额外的参数，如果存在，就返回 |
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if(tmp && tmp.extra) data.extra = tmp.extra; |
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if (tmp && tmp.extra) data.extra = tmp.extra |
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this.selectValue.push(data) |
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} |
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}, |
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// 列选项 |
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columnChange(e) { |
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let index = null; |
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let columnIndex = e.detail.value; |
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let index = null |
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const columnIndex = e.detail.value |
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// 由于后面是需要push进数组的，所以需要先清空数组 |
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this.selectValue = []; |
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this.selectValue = [] |
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if (this.mode == 'mutil-column-auto') { |
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// 对比前后两个数组，寻找变更的是哪一列，如果某一个元素不同，即可判定该列发生了变化 |
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this.lastSelectIndex.map((val, idx) => { |
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if (val != columnIndex[idx]) index = idx; |
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}); |
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this.defaultSelector = columnIndex; |
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if (val != columnIndex[idx]) index = idx |
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}) |
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this.defaultSelector = columnIndex |
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for (let i = index + 1; i < this.columnNum; i++) { |
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// 当前变化列的下一列的数据，需要获取上一列的数据，同时需要指定是上一列的第几个的children，再往后的 |
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// 默认是队列的第一个为默认选项 |
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this.columnData[i] = this.columnData[i - 1][i - 1 == index ? columnIndex[index] : 0][this.childName]; |
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this.columnData[i] = this.columnData[i - 1][i - 1 == index ? columnIndex[index] : 0][this.childName] |
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// 改变的列之后的所有列，默认选中第一个 |
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this.defaultSelector[i] = 0; |
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this.defaultSelector[i] = 0 |
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} |
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// 在历遍的过程中，可能由于上一步修改this.columnData，导致产生连锁反应，程序触发columnChange，会有多次调用 |
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// 只有在最后一次数据稳定后的结果是正确的，此前的历遍中，可能会产生undefined，故需要判断 |
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columnIndex.map((item, index) => { |
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let data = this.columnData[index][columnIndex[index]]; |
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let tmp = { |
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const data = this.columnData[index][columnIndex[index]] |
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const tmp = { |
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value: data ? data[this.valueName] : null, |
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label: data ? data[this.labelName] : null, |
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}; |
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label: data ? data[this.labelName] : null |
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} |
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// 判断是否有需要额外携带的参数 |
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if(data && data.extra !== undefined) tmp.extra = data.extra; |
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this.selectValue.push(tmp); |
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if (data && data.extra !== undefined) tmp.extra = data.extra |
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this.selectValue.push(tmp) |
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}) |
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// 保存这一次的结果，用于下次列发生变化时作比较 |
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this.lastSelectIndex = columnIndex; |
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this.lastSelectIndex = columnIndex |
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} else if (this.mode == 'single-column') { |
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let data = this.columnData[0][columnIndex[0]]; |
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const data = this.columnData[0][columnIndex[0]] |
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// 初始默认选中值 |
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let tmp = { |
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const tmp = { |
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value: data ? data[this.valueName] : null, |
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label: data ? data[this.labelName] : null, |
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}; |
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label: data ? data[this.labelName] : null |
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} |
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// 判断是否有需要额外携带的参数 |
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if(data && data.extra !== undefined) tmp.extra = data.extra; |
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this.selectValue.push(tmp); |
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if (data && data.extra !== undefined) tmp.extra = data.extra |
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this.selectValue.push(tmp) |
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} else if (this.mode == 'mutil-column') { |
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// 初始默认选中值 |
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columnIndex.map((item, index) => { |
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let data = this.columnData[index][columnIndex[index]]; |
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const data = this.columnData[index][columnIndex[index]] |
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// 初始默认选中值 |
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let tmp = { |
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const tmp = { |
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value: data ? data[this.valueName] : null, |
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label: data ? data[this.labelName] : null, |
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}; |
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label: data ? data[this.labelName] : null |
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} |
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// 判断是否有需要额外携带的参数 |
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if(data && data.extra !== undefined) tmp.extra = data.extra; |
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this.selectValue.push(tmp); |
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if (data && data.extra !== undefined) tmp.extra = data.extra |
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this.selectValue.push(tmp) |
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}) |
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} |
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}, |
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close() { |
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this.$emit('input', false); |
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this.$emit("update:modelValue", false); |
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this.$emit('input', false) |
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this.$emit('update:modelValue', false) |
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}, |
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// 点击确定或者取消 |
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getResult(event = null) { |
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// #ifdef MP-WEIXIN |
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if (this.moving) return; |
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if (this.moving) return |
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// #endif |
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if (event) this.$emit(event, this.selectValue); |
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this.close(); |
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if (event) this.$emit(event, this.selectValue) |
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this.close() |
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}, |
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selectHandler() { |
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this.$emit('click'); |
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this.$emit('click') |
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} |
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} |
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} |
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}; |
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</script> |
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<style scoped lang="scss"> |
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@import "../../libs/css/style.components.scss"; |
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@import '../../libs/css/style.components.scss'; |
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.u-select { |
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&__action { |
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position: relative; |
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line-height: $u-form-item-height; |
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@ -383,7 +368,7 @@ export default { |
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position: absolute; |
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right: 20rpx; |
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top: 50%; |
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transition: transform .4s; |
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transition: transform 0.4s; |
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transform: translateY(-50%); |
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z-index: 1; |
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@ -415,7 +400,7 @@ export default { |
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&__body { |
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width: 100%; |
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height: 300rpx; |
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height: 500rpx; |
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overflow: hidden; |
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background-color: #fff; |
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