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<docs>
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---
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order: 10
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title:
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zh-CN: 自定义新增页签触发器
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en-US: Customized trigger of new tab
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---
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## zh-CN
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隐藏默认的页签增加图标，给自定义触发器绑定事件。
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## en-US
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Hide default plus icon, and bind event for customized trigger.
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</docs>
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<template>
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<div>
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<div :style="{ marginBottom: '16px' }">
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<a-button @click="add">ADD</a-button>
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</div>
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<a-tabs v-model:activeKey="activeKey" hide-add type="editable-card" @edit="onEdit">
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<a-tab-pane v-for="pane in panes" :key="pane.key" :tab="pane.title" :closable="pane.closable">
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{{ pane.content }}
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</a-tab-pane>
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</a-tabs>
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</div>
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</template>
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<script lang="ts">
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import { defineComponent, ref } from 'vue';
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export default defineComponent({
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setup() {
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const panes = ref<{ title: string; content: string; key: string; closable?: boolean }[]>(
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new Array(2).fill(null).map((_, index) => {
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const id = String(index + 1);
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return { title: `Tab ${id}`, content: `Content of Tab Pane ${id}`, key: id };
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}),
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);
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const activeKey = ref(panes.value[0].key);
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const newTabIndex = ref(0);
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const add = () => {
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activeKey.value = `newTab${newTabIndex.value++}`;
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panes.value.push({
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title: `New Tab ${activeKey.value}`,
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content: `Content of new Tab ${activeKey.value}`,
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key: activeKey.value,
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});
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};
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const remove = (targetKey: string) => {
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let lastIndex = 0;
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panes.value.forEach((pane, i) => {
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if (pane.key === targetKey) {
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lastIndex = i - 1;
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}
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});
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panes.value = panes.value.filter(pane => pane.key !== targetKey);
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if (panes.value.length && activeKey.value === targetKey) {
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if (lastIndex >= 0) {
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activeKey.value = panes.value[lastIndex].key;
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} else {
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activeKey.value = panes.value[0].key;
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}
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}
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};
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const onEdit = (targetKey: string) => {
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remove(targetKey);
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};
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return {
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panes,
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activeKey,
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onEdit,
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add,
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};
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},
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});
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</script>
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