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fix(tooltip): 修复鼠标跟随模式下的 tooltip 偏移计算可能会超出窗口的问题 #6130

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fix(tooltip): 修复鼠标跟随模式下的 tooltip 偏移计算可能会超出窗口的问题 #6130

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28 changes: 25 additions & 3 deletions packages/components/tooltip/tooltip.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -74,9 +74,31 @@ export default defineComponent({
if (props.placement !== 'mouse' || offsetX.value === 0) {
return props.overlayInnerStyle;
}
const offsetStyle = (triggerEl: HTMLElement) => ({
transform: `translateX(${offsetX.value - triggerEl.getBoundingClientRect().left}px)`,
});
const offsetStyle = (triggerEl: HTMLElement) => {
const triggerRect = triggerEl.getBoundingClientRect();
// tooltip 的场景传入的都是字符串 这里直接使用canvas计算长度
const content = props.content as string;
const canvas = document.createElement('canvas');
const ctx = canvas?.getContext('2d');
ctx.font = getComputedStyle(triggerEl).font;
const textWidth = ctx.measureText(content).width;

const tipWidth = textWidth + 10; // 考虑到padding 需要添加10px

// 获取距离窗口右侧的距离
const maxLeftOffset = window.innerWidth - x.value;

let finalLeftOffset = 0;
if (maxLeftOffset >= tipWidth) {
finalLeftOffset = x.value - triggerRect.left;
} else {
finalLeftOffset = triggerRect.width - tipWidth;
}

return {
transform: `translateX(${finalLeftOffset}px)`,
};
};
if (props.overlayInnerStyle) {
return (triggerEl: HTMLElement, popupEl: HTMLElement) => ({
...offsetStyle(triggerEl),
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