jquery - 如何通过将鼠标悬停在另一个映射图像区域上来显示小图像和段落？

Question

这会比我的话更好地解释我想要的东西: http://jquery-image-map.ssdtutorials.com/尽管教程可用，但它是使用 photoshop 中的图像叠加层完成的。但我正在使用 jquery 插件“jquery.maphilight.js”突出显示我的映射图像。使用它我有一个映射图像，如果我将鼠标悬停在图像上，它会突出显示映射部分。如果有人将鼠标悬停在特定房间(映射部分)上，我如何显示小图片和段落。

这是javascript:

 $(function () {
        $(".mapping").maphilight();
        $("#mapping").css('visibility','hidden')

    $(".hoverable").css("border", "3px solid red");

& 这是图片映射的html:

<div class="mapping"> 
<map name="gmap">
<area shape="poly" id="cr1" coords="550,277,485,342,533,385,597,322" href="#" alt="cr1" name="room-1">
<area shape="poly" id="cr2"coords="579,246,627,200,672,246,624,290" href="#" alt="cr2" name="room-2">

Answer 1

使用 jQuery mouseover事件。

您可以将其附加到文档就绪的“区域”标签上。

$(document).ready(function(){
    //this selector is selecting an element by the id of cr1.
    $('#cr1').on('mouseover', function(){
        //do your showing here
    });

    $('#cr1').on('mouseleave', function(){
        //do your hiding here
    });
});

对于通用处理程序，您可以这样做:

$(document).ready(function(){
    //this is an attribute selector.
    //'area' is the typ of tag to match
    //[name indicates the attribute is named 'name'
    //^= indicates the attribute 'name' should start with the value following this operator
    //'room'] think of this as indicating the value of the name attribute
    // should match: 'room*'
    $('area[name^="room"]').on('mouseover', function(){
        //do your showing here, be sure to show only 
        //for the appropriate area. Maybe select on the id.
    });

    $('area[name^="room"]').on('mouseleave', function(){
        //do your hiding here. This could be generic unless you have
        //a multi-paragrah area instead of a single display area.
    });
});