用div模拟ALT的提示效果

本文介绍了一种使用HTML和JavaScript自定义实现的提示框方法,该方法通过div元素创建一个可自定义样式的提示框,并能跟随鼠标位置显示,适用于需要丰富提示内容的场景。

在网页设计过程中经常会用到标签的alt,title提示效果,但往往满足不了要求。昨天一个同事在设计页面时刚好需要用到这种提示效果,我就帮他用div做了一个。

 

<html>
<SCRIPT>
var innerhtm = '<div id="showtip" style="position:absolute;display:none;"><table style="background:#E9F0F8; border:1px solid #AFB799; font-family:verdana; font-size:70%;color=#111;" cellspacing="0"  cellpadding="0" border=0><tr><td style="height:18px;padding:3px;background:#147B95;FILTER: progid:DXImageTransform.Microsoft.Gradient(gradientType=0,startColorStr=#ffffff,endColorStr=#147B95,style=1;);"></td></tr><tr><td style="padding:4px;"></td></tr></table></div>';

document.write(innerhtm);

function showTitle(ev,title, content)
{  
   ev = ev||window.event;
    var mousePos = mouseCoords(ev);
    mpx=mousePos.x+6;
    mpy=mousePos.y+6;

    var divobj = document.getElementById("showtip");
    divobj.style.display = "block";
    divobj.style.left = mpx+"px";
    divobj.style.top = mpy+"px";
 
    divobj.getElementsByTagName("table")[0].rows[0].cells[0].innerHTML = title;
    divobj.getElementsByTagName("table")[0].rows[1].cells[0].innerHTML = content;
}

function hideTitle(){
   document.getElementById("showtip").style.display = "none";  
}

function mouseCoords(ev){
    if(ev.pageX||ev.pageY){return {x:ev.pageX, y:ev.pageY};}
    return {x:ev.clientX + document.documentElement.scrollLeft,y:ev.clientY + document.documentElement.scrollTop}
}

</SCRIPT>


<body style="background:#DAE1AB;">

 <span onmousemove="showTitle(event,'IP地址', '192.168.1.1<br>192.168.12.202<br>127.0.0.1');" onmouseout="hideTitle()">使用示例,将鼠标移动到这里</span>

</html>

 

显示效果如图:

 

<script lang="ts" setup> import { ref, onMounted } from 'vue' import Navigater from '@/components/Navigation/Navigater.vue' import {getTaskDetail} from '@/pages/taskDetail/api/index' import type { UploadFile } from 'element-plus' import { Edit,Delete, Download, Plus, ZoomIn} from '@element-plus/icons-vue' import type { FormInstance, FormRules } from 'element-plus' const route = useRoute() // 正确获取当前 route 实例 const id = ref() const taskDetail = ref()// 任务详情 const partyUserInfo = ref() const checked1 = ref(false) const addTxt1 = ref('') const container = ref(null) let scaleValue = 1 const getData = async (id) => { const res = await getTaskDetail({id:id}) taskDetail.value = res.data partyUserInfo.value = res.data.partyUserInfo console.log(partyUserInfo.value.avatar)//输出结果https://cdn.shenyantuling.com/prod/image/head/shutiao1.png } // 图片上传 const dialogImageUrl = ref('') const dialogVisible = ref(false) const disabled = ref(false) const handleRemove = (file: UploadFile) => { console.log(file) } const handlePictureCardPreview = (file: UploadFile) => { dialogImageUrl.value = file.url! dialogVisible.value = true } const handleDownload = (file: UploadFile) => { console.log(file) } // 表单校验 const ruleFormRef = ref<FormInstance>() const ruleForm = reactive({ // .... }) const handleResize = () => { const containerWidth = container.value.offsetWidth const containerHeight = container.value.offsetHeight const windowWidth = window.innerWidth const windowHeight = window.innerHeight // 计算缩放比例,保持内容完整显示 scaleValue = Math.min( windowWidth / containerWidth, windowHeight / containerHeight ) container.value.style.transform = `scale(${scaleValue})` container.value.style.transformOrigin = 'top left' } onMounted(() => { handleResize() window.addEventListener('resize', handleResize) id.value = route.query.id getData(id.value) }) onBeforeUnmount(() => { window.removeEventListener('resize', handleResize) }) </script> <template> <div class="scale-container" ref="container"> <div class="content"> <!-- 顶部 logo 导航栏 --> <Navigater class="top"></Navigater> <!-- 任务详情 --> <div class="wrap"> <div class="topBack"> <div class="return"> <img src="@/assets/navigater/return.png" alt=""> </div> <div class="title">任务详情</div> </div> <div class="taskBox"> <div class="taskLeft"> <!-- 发布者 --> <div class="publisherBox"> <div class="avatar"> <img :src=partyUserInfo.avatar alt=""> </div> <div class="info"> <div class="infoTop"> <div class="name">avatar</div> <img src="@/assets/navigater/task1.png" alt=""> <img src="@/assets/navigater/task1.png" alt=""> </div> <div class="dic"> The First Onchain Treasury Network for Web 3The First Onchain Treasury Network for Web 3The First Onchain Treasury Network for Web 3 </div> </div> </div> <!-- 任务 --> <div class="taskDic"> <div class="taskImg"> <img src="@/assets/navigater/task1.png" alt=""> </div> <div class="taskText"> <div class="taskTitle">任务标题:关注微博账号赠送3000积分积分赠送</div> <div class="botBox"> <div class="type">任务类型</div> <div class="copy"> <img src="@/assets/navigater/task2.png" alt=""> </div> </div> </div> </div> <div class="tip"> <img src="@/assets/navigater/task1.png" alt=""> <div class="tipTxt">Joinly 将在发放奖励前仔细检查,已提交的任务</div> </div> <div class="taskMain"> <div class="mainTop"> <img src="@/assets/navigater/task2.png" alt=""> <div class="mainTxt">关注 crazy crap在微博的账号,账号名称crazy crap</div> </div> <div class="main"> <el-form ref="ruleFormRef" style="max-width: 600px" :model="ruleForm" status-icon label-width="auto" class="demo-ruleForm" > <!-- :rules="rules" --> <el-card class="step"> <div class="stepTop"> <div class="stepTit"> <el-checkbox v-model="checked1" size="large" /> <div class="stepTxt">关闭微博关闭微博关闭微博关闭微博关闭微博关闭微博关闭微博关闭微博关闭微博关闭微博</div> </div> <el-button class="stepBtn" color="#715EFF" type="primary" :icon="Edit" disabled>保存修改</el-button> </div> <div class="stepMain"> <div class="title">添加图片</div> <el-upload action="#" list-type="picture-card" :auto-upload="false" :limit=3> <el-icon><Plus /></el-icon> <template #file="{ file }"> <div> <img class="el-upload-list__item-thumbnail" :src="file.url" alt="" /> <span class="el-upload-list__item-actions"> <span class="el-upload-list__item-preview" @click="handlePictureCardPreview(file)" > <el-icon><zoom-in /></el-icon> </span> <span v-if="!disabled" class="el-upload-list__item-delete" @click="handleRemove(file)" > <el-icon><Delete /></el-icon> </span> </span> </div> </template> </el-upload> <el-dialog v-model="dialogVisible"> <img w-full :src="dialogImageUrl" alt="Preview Image" /> </el-dialog> <div class="title">添加文字</div> <el-input class="addTxt" type="textarea" v-model="addTxt1" placeholder="请输入文字" /> </div> </el-card> <el-card class="step"> <div class="stepTop"> <div class="stepTit"> <el-checkbox v-model="checked1" size="large" /> <div class="stepTxt">关闭微博关闭微博关闭微博关闭微博关闭微博关闭微博关闭微博关闭微博关闭微博关闭微博</div> </div> <el-button class="stepBtn" color="#715EFF" type="primary" :icon="Edit" disabled>保存修改</el-button> </div> <div class="stepMain"> <div class="title">添加图片</div> <el-upload action="#" list-type="picture-card" :auto-upload="false" :limit=3> <el-icon><Plus /></el-icon> <template #file="{ file }"> <div> <img class="el-upload-list__item-thumbnail" :src="file.url" alt="" /> <span class="el-upload-list__item-actions"> <span class="el-upload-list__item-preview" @click="handlePictureCardPreview(file)" > <el-icon><zoom-in /></el-icon> </span> <span v-if="!disabled" class="el-upload-list__item-delete" @click="handleRemove(file)" > <el-icon><Delete /></el-icon> </span> </span> </div> </template> </el-upload> <el-dialog v-model="dialogVisible"> <img w-full :src="dialogImageUrl" alt="Preview Image" /> </el-dialog> <div class="title">添加文字</div> <el-input class="addTxt" type="textarea" v-model="addTxt1" placeholder="请输入文字" /> </div> </el-card> <el-card class="step"> <div class="stepTop"> <div class="stepTit"> <el-checkbox v-model="checked1" size="large" /> <div class="stepTxt">关闭微博关闭微博关闭微博关闭微博关闭微博关闭微博关闭微博关闭微博关闭微博关闭微博</div> </div> <el-button class="stepBtn" color="#715EFF" type="primary" :icon="Edit" disabled>保存修改</el-button> </div> <div class="stepMain"> <div class="title">添加图片</div> <el-upload action="#" list-type="picture-card" :auto-upload="false" :limit=3> <el-icon><Plus /></el-icon> <template #file="{ file }"> <div> <img class="el-upload-list__item-thumbnail" :src="file.url" alt="" /> <span class="el-upload-list__item-actions"> <span class="el-upload-list__item-preview" @click="handlePictureCardPreview(file)" > <el-icon><zoom-in /></el-icon> </span> <span v-if="!disabled" class="el-upload-list__item-delete" @click="handleRemove(file)" > <el-icon><Delete /></el-icon> </span> </span> </div> </template> </el-upload> <el-dialog v-model="dialogVisible"> <img w-full :src="dialogImageUrl" alt="Preview Image" /> </el-dialog> <div class="title">添加文字</div> <el-input class="addTxt" type="textarea" v-model="addTxt1" placeholder="请输入文字" /> </div> </el-card> </el-form> </div> </div> </div> <div class="taskRight"> </div> </div> </div> </div> </div> </template> <style scoped lang="scss"> .scale-container { width: 1920px; /* 设计稿宽度 */ position: absolute; display: block; top: 0; left: 0; .content { width: 100%; height: 100%; background-color: #000; display: block; .wrap{ width: 1552px; margin: 0 auto; .topBack{ display: flex; width: 1552px; height: 74px; justify-content: left; align-items: center; border-bottom: 1px solid #444; margin-bottom: 31px; .return{ width: 24px; height: 24px; margin-right: 10px; img{ width: 100%; height: 100%; } } .title{ font-family: PingFang SC; font-weight: 600; font-style: Semibold; font-size: 20px; color:#fff; line-height: 100%; letter-spacing: -0.3px; } } .taskBox{ display: flex; width: 1174px; margin: 0 auto; .taskLeft{ width: 787px; .publisherBox{ width: 787px; height:100px; display: flex; background-color: #232323; border-radius: 12px; padding: 16px; margin-bottom: 30px; .avatar{ width: 48px; height: 48px; margin-right: 16px; img{ width: 100%; height: 100%; border-radius: 50%; } } .info{ .infoTop{ display: flex; justify-content: left; align-items: center; .name{ font-family: PingFang SC; font-weight: 600; font-style: Semibold; font-size: 20px; color:#fff; line-height: 100%; letter-spacing: -0.3px; } img{ width: 16px; height: 16px; border-radius: 50%; margin-left: 8px; } } .dic{ width: 536px; margin-top: 14px; font-family: PingFang SC; font-weight: 400; font-style: Regular; font-size: 14px; line-height: 21px; letter-spacing: -0.3px; color:#A6A6A6; display: -webkit-box; /* 关键属性:弹性伸缩盒子 */ -webkit-box-orient: vertical; /* 排列方向:垂直 */ -webkit-line-clamp: 2; /* 限制行数:2行 */ overflow: hidden; /* 溢出隐藏 */ text-overflow: ellipsis; /* 溢出显示省略号 */ word-break: break-word; /* 长单词换行处理 */ } } } .taskDic{ width: 786px; height: 150px; top: 346px; left: 373px; display: flex; padding-top: 32px; border-top: 1px solid #444; .taskImg{ img{ width: 160px; height: 120PX; border-radius: 12px; } } .taskText{ color: #fff; margin-left: 23px; .taskTitle{ width: 546px; height: 80px; font-family: PingFang SC; font-weight: 600; font-style: Semibold; font-size: 26px; letter-spacing: -0.3px; // display: -webkit-box; /* 关键属性:弹性伸缩盒子 */ // -webkit-box-orient: vertical; /* 排列方向:垂直 */ // -webkit-line-clamp: 2; /* 限制行数:2行 */ // overflow: hidden; /* 溢出隐藏 */ // text-overflow: ellipsis; /* 溢出显示省略号 */ // word-break: break-word; /* 长单词换行处理 */ } .botBox{ display: flex; justify-content: space-between; align-items: center; width: 603px; .type{ width: 64px; height: 30px; text-align: center; font-family: PingFang SC; font-weight: 600; font-style: Semibold; font-size: 12px; line-height: 30px; letter-spacing: -0.3px; border-radius: 4px; background-color: #232323; } .copy{ width: 30px; height: 30px; img{ width: 100%; height: 100%; } } } } } .tip{ display: flex; justify-content: left; align-items: center; margin: 32px auto; img{ width: 16px; height: 16px; border-radius: 50%; margin-right: 10px; } .tipTxt{ color:#fff;font-family: PingFang SC; font-weight: 400; font-style: Regular; font-size: 14px; line-height: 100%; letter-spacing: -0.3px; } } .taskMain{ width: 787px; padding: 24px; border-radius: 12px; background-color: #232323; .mainTop{ display: flex; justify-content: left; align-items: center; margin-bottom: 23px; img{ width: 24px; height: 24px; border-radius: 4px; margin-right: 10px; } .mainTxt{ font-family: PingFang SC; font-weight: 600; font-style: Semibold; font-size: 18px; color:#fff; line-height: 100%; letter-spacing: -0.3px; } } .main{ .step{ width: 739px; background-color: #121212; border: 1px solid #121212; .stepTop{ width: 715px; display: flex; justify-content: space-between; align-items: center; border-bottom: 1px solid #444; .stepTit{ display: flex; justify-content: space-between; align-items: center; .stepTxt{ font-family: PingFang SC; font-weight: 400; font-style: Regular; font-size: 14px; color:#A6A6A6; line-height: 100%; letter-spacing: -0.3px; margin-left: 10px; } } .stepBtn{ margin-right: 10px; margin-bottom: 3px; } } .stepMain{ width: 667px; margin: 0 auto; .title{ font-family: PingFang SC; font-weight: 400; font-style: Regular; font-size: 12px; color:#fff; letter-spacing: -0.3px; margin: 10px 0; } .addTxt{ &:deep(.el-input){ display: block; width: 667px; height: 80px !important; background-color: #363636 !important; border: none; border-radius: 8px; } } } } } } } .taskRight{ width: 339px; margin-left: 48px; } } } } } </style> 中console.log(partyUserInfo.value.avatar)的输出结果为https://cdn.shenyantuling.com/prod/image/head/shutiao1.png。 但是 报错显示:taskDetail.vue:98 Uncaught (in promise) TypeError: Cannot read properties of undefined (reading 'avatar') at Proxy._sfc_render (taskDetail.vue:98:53) 即<img :src=partyUserInfo.avatar alt="">中找不到avatar
最新发布
07-29
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