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278 lines
8.9 KiB
278 lines
8.9 KiB
<template>
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<view>
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<view class="s-tabbar" :class="c_class" :style="c_style">
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<view class="s-tabbar-list" :style="height_style">
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<view
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v-for="(item, index) of list"
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:key="index"
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class="s-tabbar-item"
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:class="itemClassList[index]"
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:style="itemStyleList[index]"
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@click="onItemClick(item, index)"
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>
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<slot
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:scopeParams="scopeParams"
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:item="item"
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:index="index"
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:active="isActive(index)"
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>
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<template v-if="item.midButton && minButtonCircle">
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<view
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class="s-tabbar-item__mid-button-circle"
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:class="c_midButtonCircleClass"
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:style="c_midButtonCircleStyle"
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></view>
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<view
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class="s-tabbar-item__mid-button-circle-mask"
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:style="midButtonCircleMaskStyle"
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></view>
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</template>
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<view class="s-tabbar-item__icon" :style="iconStyleList[index]">
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<slot
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:scopeParams="scopeParams"
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name="icon"
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:item="item"
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:index="index"
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:active="isActive(index)"
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>
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<s-icon
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:icon-prefix="iconPrefix"
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:name="isActive(index) && item.activeIcon ? item.activeIcon : item.icon"
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/>
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</slot>
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<s-badge
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v-if="hasBadge(item)"
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:type="item.badge.type"
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:value="item.badge.value"
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:dot="item.badge.dot"
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:background="item.badge.background"
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:color="item.badge.color"
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:show-zero="item.badge.showZero"
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:offset="item.badge.offset"
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:offset-center="!item.badge.offset"
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:max="item.badge.max"
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:scale="item.badge.scale"
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/>
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</view>
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<text v-if="!item.hideText && $isDef(item.text)" class="s-tabbar-item__text">
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{{ item.text }}
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</text>
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</slot>
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</view>
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</view>
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<s-safe-area-inset v-if="safeAreaInsetBottom" position="bottom" />
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</view>
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<template v-if="fixed">
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<view class="s-tabbar-placeholder" :style="height_style"></view>
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<s-safe-area-inset v-if="safeAreaInsetBottom" position="bottom" />
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</template>
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</view>
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</template>
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<script>
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import componentMixin from '../../mixins/componentMixin';
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/**
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* s-tabbar 标签栏
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* @description 底部导航栏，用于在不同页面之间进行切换
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* @property {Array} list 各项的配置参数，[{
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* text: '',
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icon: '',
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activeIcon: '',
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color: '',
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activeColor: '',
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iconStyle: '',
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midButton：false,
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alignCenter: false,
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hideText: false,
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customClass: '',
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customStyle: '',
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badge: {
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dot: true,
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value: 9,
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type: 'danger',
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showZero: false,
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max: 0,
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},
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* }]
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* @property {Number|String} value 双向绑定的激活项的值
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* @property {Number|String} height 高度
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* @property {String} background 背景色
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* @property {Number|String} padding item内边距
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* @property {String} valueKey 标签匹配属性字段，设值后则开启value和属性值匹配
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* @property {String} iconPrefix 图标类名前缀，同 Icon 组件的 class-prefix 属性
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* @property {String} inactiveColor 文字和字体图标未激活时的颜色
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* @property {String} activeColor 文字和字体图标激活时的颜色
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* @property {Number|String} iconSize 图标大小
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* @property {Number|String} textSize 文本大小
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* @property {Number|String} midButtonIconSize 凸起项图标大小
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* @property {Number|String} midButtonIconTop 凸起项图标居上偏移距离
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* @property {String|Object} midButtonIconStyle 凸起项图标样式
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* @property {Boolean} minButtonCircle 是否显示凸起项图标外层圆圈
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* @property {Number|String} midButtonCircleSize 凸起项图标外层圆圈大小
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* @property {Number|String} midButtonCircleTop 凸起项图标外层圆圈居上偏移距离
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* @property {Boolean} midButtonCircleStyle 凸起项图标外层圆圈样式
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* @property {Boolean} fixed 是否固定到底部
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* @property {Number|String} zIndex z-index值
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* @property {Boolean} safeAreaInsetBottom 是否开启底部安全区域适配
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* @property {Boolean} border 是否显示顶部边框
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* @property {String} borderColor 顶部边框颜色和凸起按钮边框颜色
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* @property {Boolean} shadow 是否显示阴影
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* @property {Boolean} hidePageTabbar 是否隐藏原生tabbar
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* @event {Function} click (index) 点击事件
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* @event {Function} change (index) 选择项改变事件
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* @example <s-tabbar :list="list" :v-model="value" />
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*/
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export default {
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name: 'STabbar',
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mixins: [componentMixin],
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props: {
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list: {
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type: Array,
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default: () => [],
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},
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value: {
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type: [Number, String],
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default: 0,
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},
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height: [Number, String],
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background: String,
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padding: [Number, String],
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valueKey: String,
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iconPrefix: String,
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inactiveColor: String,
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activeColor: String,
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iconSize: [Number, String],
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textSize: [Number, String],
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midButtonIconSize: [Number, String],
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midButtonIconTop: [Number, String],
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midButtonIconStyle: [String, Object],
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minButtonCircle: {
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type: Boolean,
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default: true,
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},
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midButtonCircleSize: [Number, String],
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midButtonCircleTop: [Number, String],
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midButtonCircleStyle: [String, Object],
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fixed: {
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type: Boolean,
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default: true,
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},
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zIndex: [Number, String],
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safeAreaInsetBottom: {
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type: Boolean,
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default: true,
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},
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border: Boolean,
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borderColor: String,
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shadow: Boolean,
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hidePageTabbar: {
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type: Boolean,
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default: true,
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},
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},
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computed: {
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c_class() {
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return this.$mergeClass({
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's-tabbar--fixed': this.fixed,
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's-tabbar--shadow': this.shadow,
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's-hairline--top': this.border,
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}, this.custom_class);
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},
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c_style() {
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return this.$mergeStyle({
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background: this.background,
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borderColor: this.borderColor,
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zIndex: this.zIndex,
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}, this.custom_style);
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},
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height_style() {
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return this.$mergeStyle({
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height: this.$addUnit(this.height),
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});
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},
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c_midButtonCircleClass() {
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return this.$mergeClass({
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's-hairline--surround': this.border,
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's-tabbar-item__mid-button-circle--shadow': this.shadow,
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});
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},
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c_midButtonCircleStyle() {
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return this.$mergeStyle({
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width: this.$addUnit(this.midButtonCircleSize),
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height: this.$addUnit(this.midButtonCircleSize),
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background: this.background,
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borderColor: this.borderColor,
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top: this.$addUnit(this.midButtonCircleTop),
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}, this.midButtonCircleStyle);
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},
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midButtonCircleMaskStyle() {
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return this.$mergeStyle({
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background: this.background,
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});
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},
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current() {
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if (this.valueKey) return this.list.findIndex(item => item[this.valueKey] === this.value);
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const index = parseInt(this.value);
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return index > -1 ? index : -1;
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},
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itemClassList() {
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return this.list.map((item, index) => this.$mergeClass({
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's-tabbar-item--mid-button': item.midButton,
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's-tabbar-item--active': this.isActive(index),
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's-tabbar-item--align-center': item.alignCenter || item.hideText,
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}, item.customClass));
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},
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itemStyleList() {
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const { list, textSize, padding, inactiveColor, activeColor } = this;
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return list.map((item, index) => {
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const isActive = this.isActive(index);
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return this.$mergeStyle({
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fontSize: this.$addUnit(textSize),
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color: isActive ? (item.activeColor || activeColor) : inactiveColor,
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padding: this.$addUnit(padding),
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}, item.customStyle);
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});
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},
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iconStyleList() {
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const { list, iconSize, midButtonIconSize, midButtonIconTop, midButtonIconStyle } = this;
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return list.map(item => {
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const style = {
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fontSize: this.$addUnit(iconSize),
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};
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if (item.midButton) {
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style.fontSize = midButtonIconSize;
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style.top = this.$addUnit(midButtonIconTop);
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}
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return this.$mergeStyle(
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style,
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item.midButton ? midButtonIconStyle : '',
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item.iconStyle,
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);
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});
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},
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},
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created() {
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if (this.hidePageTabbar) {
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uni.hideTabBar();
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}
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},
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methods: {
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isActive(index) {
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return this.current === index;
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},
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hasBadge(item) {
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return this.$getType(item.badge) === 'object';
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},
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onItemClick(item, index) {
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this.$emit('click', index);
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if (!this.isActive(index)) {
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this.$emit('input', this.valueKey ? item[this.valueKey] : index);
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this.$emit('change', index);
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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 lang="scss" src="./index.scss"></style>
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