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vue3-big-list
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网址: https://github.com/mailhonor/vue3-big-list
超大列表优化显示组件(实际上只显示当前需要显示的条目).
支持多选, ctrl/shift等常见操作:
https://github.com/mailhonor/vue3-big-list/blob/master/demo/app.vue
http://linuxmail.cn/web/big-list-demo.html
<vue3BigList ref="listRef"
:itemHeight="itemHeight" <!-- 传入条目固定高度 -->
@selectedItemChanged="selectedItemChanged" <!-- 选中条目发生变化 -->
@scrollTopChanged="scrollTopChanged"> <!-- 滚动条发生变化 -->
<template #="{ item, selected }"> <!-- 默认槽, item: 传入的条目, selected: 是否选中状态 -->
<div class="item" :class="{ 'item-selected': selected }">
{{ item.data }}
</div>
</template>
</vue3BigList>
import vue3BigList, { vue3BigListItem } from "vue3-big-list"
import { reset } from 'mousetrap';
// type vue3BigListItem = {
// id: string, // id 不能重复
// data: any,
// }
const listRef = ref();
// 必须指定条目的高度
const itemHeight = ref(36);
const reStart = (count: number) => {
let blist: vue3BigListItem[] = [];
for (var i = 0; i < count; i++) {
let o: vue3BigListItem = {
id: "test_" + i,
data: {
label: "条目: " + i,
}
}
blist.push(o);
}
listRef.value.clear();
listRef.value.updateItemList(blist);
}
onMounted(() => {
// 注册鼠标/键盘快捷键
listRef.value.shortcutRegister(wrapRef.value)
// 例子: 10000 条目
reStart(10000);
});
const selectedItemChanged = () => {
let items: vue3BigListItem[] = listRef.value.getSelectedItemList();
console.log("选择条目数量:", items.length);
// 一般来说, 选中 1 条的时候, 激活显示这个条目的相关信息,
}
const scrollTopChanged = (offset: number) => {
console.log("滚动条滚动位置:", offset);
// 可以考虑记住滚动条的位置, 下次登入后用 scrollTo 回到原来的位置
}
// 弹出id为"test_123"的条目
listRef.value.popupItem("test_123");
// 弹出id为"test_123"的条目, 并放到列表中间位置
listRef.value.popupItemToMiddle("test_123");
// 设置选中id为"test_123"的条目
listRef.value.updateSelectedItemList(["test_123"]);
// 追加选中id为"test_123"的条目
listRef.value.appendSelectedItemList(["test_123"]);
// 取消选中id为"test_123"的条目
listRef.value.unSelectedItemList(["test_123"]);
// 选中上一条
listRef.value.gotoPrevItem();
// 选中下一条
listRef.value.gotoNextItem();
// 获取选中条目
let itemList = listRef.value.getSelectedItemList();
// 获取全部条目
let itemList = listRef.value.getItemList();
// 清除所有条目
listRef.value.clear();
// 更新条目
listRef.value.updateItemList(itemList);
// 滚动到偏移 13456
listRef.value.scrollTo(123456);
FAQs
The npm package vue3-big-list receives a total of 7 weekly downloads. As such, vue3-big-list popularity was classified as not popular.
We found that vue3-big-list demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
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