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aiot-platform-ui/packages/effects/common-ui/src/components/ellipsis-text/ellipsis-text.vue
panda7 a2bdcd6e49 feat: ellipsis text automatically displays tooltip based on ellipsis (#6244)
* feat: ellipsis text automatically displays tooltip based on ellipsis

* feat: ellipsis text automatically displays tooltip based on ellipsis

---------

Co-authored-by: sqchen <9110848@qq.com>
Co-authored-by: sqchen <chenshiqi@sshlx.com>
2025-05-23 15:20:38 +08:00

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<script setup lang="ts">
import type { CSSProperties } from 'vue';
import {
computed,
onBeforeUnmount,
onMounted,
onUpdated,
ref,
watchEffect,
} from 'vue';
import { VbenTooltip } from '@vben-core/shadcn-ui';
import { useElementSize } from '@vueuse/core';
interface Props {
/**
* 是否启用点击文本展开全部
* @default false
*/
expand?: boolean;
/**
* 文本最大行数
* @default 1
*/
line?: number;
/**
* 文本最大宽度
* @default '100%'
*/
maxWidth?: number | string;
/**
* 提示框位置
* @default 'top'
*/
placement?: 'bottom' | 'left' | 'right' | 'top';
/**
* 是否启用文本提示框
* @default true
*/
tooltip?: boolean;
/**
* 是否只在文本被截断时显示提示框
* @default false
*/
tooltipWhenEllipsis?: boolean;
/**
* 文本截断检测的像素差异阈值,越大则判断越严格
* @default 3
*/
ellipsisThreshold?: number;
/**
* 提示框背景颜色,优先级高于 overlayStyle
*/
tooltipBackgroundColor?: string;
/**
* 提示文本字体颜色,优先级高于 overlayStyle
*/
tooltipColor?: string;
/**
* 提示文本字体大小单位px优先级高于 overlayStyle
*/
tooltipFontSize?: number;
/**
* 提示框内容最大宽度单位px默认不设置时提示文本内容自动与展示文本宽度保持一致
*/
tooltipMaxWidth?: number;
/**
* 提示框内容区域样式
* @default { textAlign: 'justify' }
*/
tooltipOverlayStyle?: CSSProperties;
}
const props = withDefaults(defineProps<Props>(), {
expand: false,
line: 1,
maxWidth: '100%',
placement: 'top',
tooltip: true,
tooltipWhenEllipsis: false,
ellipsisThreshold: 3,
tooltipBackgroundColor: '',
tooltipColor: '',
tooltipFontSize: 14,
tooltipMaxWidth: undefined,
tooltipOverlayStyle: () => ({ textAlign: 'justify' }),
});
const emit = defineEmits<{ expandChange: [boolean] }>();
const textMaxWidth = computed(() => {
if (typeof props.maxWidth === 'number') {
return `${props.maxWidth}px`;
}
return props.maxWidth;
});
const ellipsis = ref();
const isExpand = ref(false);
const defaultTooltipMaxWidth = ref();
const isEllipsis = ref(false);
const { width: eleWidth } = useElementSize(ellipsis);
// 检测文本是否被截断
const checkEllipsis = () => {
if (!ellipsis.value || !props.tooltipWhenEllipsis) return;
const element = ellipsis.value;
const originalText = element.textContent || '';
const originalTrimmed = originalText.trim();
// 对于空文本直接返回 false
if (!originalTrimmed) {
isEllipsis.value = false;
return;
}
const widthDiff = element.scrollWidth - element.clientWidth;
const heightDiff = element.scrollHeight - element.clientHeight;
// 使用足够大的差异阈值确保只有真正被截断的文本才会显示 tooltip
isEllipsis.value =
props.line === 1
? widthDiff > props.ellipsisThreshold
: heightDiff > props.ellipsisThreshold;
};
// 使用 ResizeObserver 监听尺寸变化
let resizeObserver: null | ResizeObserver = null;
onMounted(() => {
if (typeof ResizeObserver !== 'undefined' && props.tooltipWhenEllipsis) {
resizeObserver = new ResizeObserver(() => {
checkEllipsis();
});
if (ellipsis.value) {
resizeObserver.observe(ellipsis.value);
}
}
// 初始检测
checkEllipsis();
});
// 使用onUpdated钩子检测内容变化
onUpdated(() => {
if (props.tooltipWhenEllipsis) {
checkEllipsis();
}
});
onBeforeUnmount(() => {
if (resizeObserver) {
resizeObserver.disconnect();
resizeObserver = null;
}
});
watchEffect(
() => {
if (props.tooltip && eleWidth.value) {
defaultTooltipMaxWidth.value =
props.tooltipMaxWidth ?? eleWidth.value + 24;
}
},
{ flush: 'post' },
);
function onExpand() {
isExpand.value = !isExpand.value;
emit('expandChange', isExpand.value);
if (props.tooltipWhenEllipsis) {
checkEllipsis();
}
}
function handleExpand() {
props.expand && onExpand();
}
</script>
<template>
<div>
<VbenTooltip
:content-style="{
...tooltipOverlayStyle,
maxWidth: `${defaultTooltipMaxWidth}px`,
fontSize: `${tooltipFontSize}px`,
color: tooltipColor,
backgroundColor: tooltipBackgroundColor,
}"
:disabled="
!props.tooltip || isExpand || (props.tooltipWhenEllipsis && !isEllipsis)
"
:side="placement"
>
<slot name="tooltip">
<slot></slot>
</slot>
<template #trigger>
<div
ref="ellipsis"
:class="{
'!cursor-pointer': expand,
['block truncate']: line === 1,
[$style.ellipsisMultiLine]: line > 1,
}"
:style="{
'-webkit-line-clamp': isExpand ? '' : line,
'max-width': textMaxWidth,
}"
class="cursor-text overflow-hidden"
@click="handleExpand"
v-bind="$attrs"
>
<slot></slot>
</div>
</template>
</VbenTooltip>
</div>
</template>
<style module>
.ellipsisMultiLine {
display: -webkit-box;
-webkit-box-orient: vertical;
}
</style>