feat: 新增表格操作列自适应组件

This commit is contained in:
XFeng
2025-06-19 17:03:16 +08:00
parent 2e52beec03
commit d528db7eba
2 changed files with 191 additions and 0 deletions

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<template>
<el-table-column
:label="label"
:fixed="fixed"
:align="align"
:show-overflow-tooltip="showOverflowTooltip"
:width="finalWidth"
>
<template #default="{ row }">
<div v-auto-width class="operation-buttons">
<slot :row="row"></slot>
</div>
</template>
</el-table-column>
</template>
<script setup lang="ts">
interface Props {
listDataLength: number;
prop?: string;
label?: string;
fixed?: string;
align?: string;
width?: number;
showOverflowTooltip?: boolean;
minWidth?: number;
}
const props = withDefaults(defineProps<Props>(), {
label: "操作",
fixed: "right",
align: "center",
minWidth: 80,
});
const count = ref(0);
const operationWidth = ref(props.minWidth || 80);
// 计算操作列宽度
const calculateWidth = () => {
count.value++;
if (count.value !== props.listDataLength) return;
const maxWidth = getOperationMaxWidth();
operationWidth.value = Math.max(maxWidth, props.minWidth);
count.value = 0;
};
// 计算最终宽度
const finalWidth = computed(() => {
return props.width || operationWidth.value || props.minWidth;
});
// 自适应宽度指令
const vAutoWidth = {
mounted() {
// 初次挂载的时候计算一次
calculateWidth();
},
updated() {
// 数据更新时重新计算一次
calculateWidth();
},
};
/**
* 获取按钮数量和宽带来获取操作组的最大宽度
* 注意使用时需要使用 `class="operation-buttons"` 的标签包裹操作按钮
* @returns {number} 返回操作组的最大宽度
*/
const getOperationMaxWidth = () => {
const el = document.getElementsByClassName("operation-buttons");
// 取操作组的最大宽度
let maxWidth = 0;
let totalWidth: any = 0;
Array.prototype.forEach.call(el, (item) => {
// 获取每个item的dom
const buttons = item.querySelectorAll(".el-button");
// 获取每行按钮的总宽度
totalWidth = Array.from(buttons).reduce((acc, button: any) => {
return acc + button.scrollWidth + 22; // 每个按钮的宽度加上预留宽度
}, 0);
// 获取最大的宽度
if (totalWidth > maxWidth) maxWidth = totalWidth;
});
return maxWidth;
};
</script>