mirror of https://github.com/ElemeFE/element
39 lines
870 B
Vue
39 lines
870 B
Vue
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<template>
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<div class="el-tabs__active-bar" :style="barStyle"></div>
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</template>
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<script>
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export default {
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props: {
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tabs: Array
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},
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computed: {
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barStyle: {
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cache: false,
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get() {
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if (!this.$parent.$refs.tabs) return {};
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let style = {};
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let offset = 0;
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let tabWidth = 0;
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this.tabs.every((tab, index) => {
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let $el = this.$parent.$refs.tabs[index];
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if (!$el) { return false; }
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if (!tab.active) {
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offset += $el.clientWidth;
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return true;
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} else {
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tabWidth = $el.clientWidth;
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return false;
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}
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});
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style.width = tabWidth + 'px';
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style.transform = `translateX(${offset}px)`;
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return style;
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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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