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<template>
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<view class="tm-segTabs d-inline-block relative ">
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<view class="tm-segTabs-wkbody fulled flex-start relative" :class="['pa-'+gutter]"
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:style="{width:width>0?width+'rpx':'auto'}">
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<view @click="clickItem(index, item)" :class="[
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`px-${margin[0]} py-${margin[1]}`,
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`text-size-${fontSize}`,
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`round-${round}`,
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active_index == index
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? 'text-weight-b ' + (black_tmeme ? `text-grey-lighten-3 ` : `text-${color_tmeme}`)
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: black_tmeme
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? `text-grey bk`
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: `text-${color}`
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]" :id="'tm-segTabs-item-' + index" v-for="(item, index) in listData" :key="index"
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class="tm-segTabs-item flex-shrink flex-center" :style="{
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width:width_item+'px'
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}">
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<slot name="default"
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:item="{color:color_tmeme, data: item, index: index, isActive: active_index == index }">
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{{ returnKeyValue(item) }}
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</slot>
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</view>
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</view>
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<view :class="[black_tmeme ? 'grey-darken-5' : bgColor, `round-${round}`]"
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class="tm-segTabs-bg absolute l-0 t-0 fulled " :style="{ height: body_height + 'px' }">
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<view
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:class="[`shadow-${activeColor}-${shadow}`,black_tmeme ? 'grey-darken-3' : activeColor, `round-${round}`,aniOn?'aniOn':'',`mt-${gutter} ml-${gutter/2}`]"
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class="tm-segTabs-bg-bar relative"
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:style="{ width: `${active_barWidth}px`, height: `${active_barHeight}px`,transform: `translateX(${left}px)` }">
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</view>
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</view>
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</view>
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</template>
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<script>
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/**
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* 分段器选项卡
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* @property {Number} value = [] 默认0,当前激活的选项.
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* @property {Array} list = [] 默认数据,对象数组或者字符串数组
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* @property {String} rang-key = [] 默认text,list对象数组时取文本的字段名称
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* @property {String} color = [] 默认black,默认的文字颜色
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* @property {String} bg-color = [] 默认grey-lighten-4,默认的背景色
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* @property {String} active-font-color = [] 默认black,激活的文本色
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* @property {String} active-color = [] 默认black,激活项的背景色
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* @property {String} font-size = [] 默认 n,字号，xxs,xs,s,n,g,lg,xl
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* @property {Array} margin = [] 默认 [24,10],左右和上下的间距，调整它可以控制宽度和高度。
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* @property {Number} round = [] 默认4， 圆角
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* @property {Number} shadow = [] 默认4， 投影
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* @property {Number} gutter = [] 默认4， 四边的间隙
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* @property {Number} width = [] 默认0， 整体的宽度，默认不自动宽度，提供了后，项目内的宽度为均分此宽度。
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* @property {Boolean} black = [] 默认false， 是否暗黑模式
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* @property {Boolean} fllow-theme = [] 默认true， 是否跟随主题切换主色。
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*/
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export default {
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name: 'tm-segTabs',
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props: {
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value: {
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type: Number,
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defalut: 0
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},
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list: {
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type: Array,
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default: () => []
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},
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//整体的宽度，不设置使用默认计算的宽度。
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width: {
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type: Number,
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default: 0
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},
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// 四周的间隙
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gutter: {
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type: Number,
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default: 4
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},
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shadow: {
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type: Number,
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default: 4
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},
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margin: {
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type: Array,
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default: () => [24, 10]
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},
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rangKey: {
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type: String,
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default: 'text'
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},
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color: {
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type: String,
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default: 'black'
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},
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bgColor: {
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type: String,
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default: 'grey-lighten-4'
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},
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activeFontColor: {
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type: String,
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default: 'black'
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},
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activeColor: {
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type: String,
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default: 'white'
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},
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fontSize: {
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type: String,
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default: 'n'
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},
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round: {
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type: String | Number,
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default: 4
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},
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// 跟随主题色的改变而改变。
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fllowTheme: {
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type: Boolean | String,
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default: true
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},
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black: {
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type: Boolean | String,
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default: null
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}
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},
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data() {
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return {
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body_height: 0,
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active_barHeight: 0,
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active_barWidth: 0,
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aniOn: false,
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left: 0,
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preventLeft: 0,
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width_item_w: 0,
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};
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},
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watch: {
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value(newValue, oldValue) {
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this.active_index = newValue;
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},
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list: {
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deep: true,
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async handler() {
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this.width_item = this.width;
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await this.setInits();
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}
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}
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},
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computed: {
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width_item: {
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get: function() {
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return this.width_item_w;
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},
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set: function(val) {
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if (val == 0) {
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this.width_item_w = 'auto'
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} else {
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this.width_item_w = (uni.upx2px(val) / this.list.length)
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}
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}
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},
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black_tmeme: function() {
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if (this.black !== null) return this.black;
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return this.$tm.vx.state().tmVuetify.black;
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},
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color_tmeme: function() {
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if (this.$tm.vx.state().tmVuetify.color !== null && this.$tm.vx.state().tmVuetify.color && this
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.fllowTheme) {
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return this.$tm.vx.state().tmVuetify.color;
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}
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return this.activeFontColor;
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},
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listData: function() {
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return this.list;
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},
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active_index: {
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get: function() {
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return this.value;
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},
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set: function(val) {
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this.active = val;
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this.$emit('input', val);
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this.$emit('update:value', val);
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// this.$emit('change', val);
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this.$nextTick(function() {
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this.setDefaultPos();
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});
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}
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}
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},
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created() {
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this.active_index = this.value;
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this.width_item = this.width;
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},
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mounted() {
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let t = this;
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t.setInits();
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},
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updated() {
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this.setInits();
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},
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methods: {
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setInits() {
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let t = this;
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this.width_item = this.width;
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this.$nextTick(function() {
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uni.createSelectorQuery().in(t).select('.tm-segTabs-wkbody')
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.boundingClientRect().select('#tm-segTabs-item-' + this.active).boundingClientRect()
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.exec(function(tx) {
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let p = tx[0]
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if (!p) return;
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t.body_height = p.height;
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t.preventLeft = p.left;
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let p1 = tx[1]
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if (!p1) return;
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t.active_barHeight = p1.height;
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let left = 0;
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if (t.width == 0) {
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t.active_barWidth = p1.width;
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left = p1.left;
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} else {
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t.active_barWidth = t.width_item
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left = t.preventLeft + t.width_item * t.active;
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}
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let lsl = Math.floor((t.gutter / 2))
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t.left = left - t.preventLeft - uni.upx2px(lsl);
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t.aniOn = true;
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})
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});
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},
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returnKeyValue(item) {
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if (typeof item == 'string') {
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return item;
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}
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if (typeof item == 'object') {
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return item[this.rangKey];
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}
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},
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setDefaultPos() {
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let t = this;
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uni.createSelectorQuery().in(t).select('#tm-segTabs-item-' + this.active)
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.boundingClientRect().exec(
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function(p1) {
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if (!p1[0]) return;
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t.active_barHeight = p1[0].height;
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t.active_barWidth = p1[0].width;
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let lsl = Math.floor((t.gutter / 2))
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t.left = p1[0].left - t.preventLeft - uni.upx2px(lsl);
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})
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},
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clickItem(index, item) {
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this.active_index = index;
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this.$emit('change', index);
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this.$nextTick(function() {
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this.setDefaultPos();
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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">
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.tm-segTabs {
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.tm-segTabs-wkbody {
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z-index: 2;
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.tm-segTabs-item {
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transition: all 0.2s linear;
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}
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}
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.tm-segTabs-bg {
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.tm-segTabs-bg-bar {
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&.aniOn {
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transition: all 0.2s ease-in-out;
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}
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}
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box-shadow: 0 0 3px 2px rgba(0, 0, 0, 0.02) inset;
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}
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}
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</style>
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