jquery图像地图悬停效果口吃进出

Question

我正在整理一张美国地图，其中包含我需要以某种方式触发的悬停状态。我构建它的方式（并且之前已经在较小规模上完成过，没有问题）是对美国的主要图像进行图像映射，给每个区域一个 id，然后使用 jQuery 显示/隐藏绝对定位的 div 上方地图。每个 div 都包含一个带有自己的地图的图像，当鼠标悬停在该图像上时，只会发送一个 show() 命令，以便它保持原状。

我还有一些 jquery 隐藏 mouseleave 上的所有 div。问题是，悬停效果在这种疯狂的口吃效果中不断打开和关闭。我做错了什么？正如您所看到的，我尝试了各种功能，包括 mouseover、mouseenter 和悬停。

<div id="mapContainer">
    <img name="CAS_hotspot_exporter_v2" border="0" src="CAS_hotspot_exporter_v2.jpg" id="CAS_hotspot_exporter_v2" usemap="#m_CAS_hotspot_exporter_v2" alt="" />
    <map name="m_CAS_hotspot_exporter_v2" id="m_CAS_hotspot_exporter_v">
        <area shape="poly" coords="76,138,110,147,101,182,138,248,133,258,132,265,105,260,101,248,97,241,87,235,81,233,70,174" alt="california" id="californiaHotspot"/>
        <area shape="poly" coords="76,137,94,91,100,98,105,102,127,104,149,112,139,124,140,129,133,153" alt="oregon"id="oregonHotspot" />
        <area shape="poly" coords="94,89,96,64,109,70,101,78,106,81,112,75,111,60,153,70,145,109,105,100" alt="washington" id="washingtonHotspot" />
        <area shape="poly" coords="112,149,103,182,136,243,158,161,112,149" href="#" id="nevadaHotspot"/>
        <area shape="poly" coords="133,153,181,162,186,132,172,131,161,113,165,101,157,86,159,73,154,72,146,110,152,112,141,125" href="#" id="idahoHotspot" />
    </map>

    <div id="washington">
        <img src="state_pngs/washington.png" border="0" usemap="#washingtonMap">
        <map name="washingtonMap" id="washingtonMap">
            <area id="washingtonActiveArea" shape="poly" coords="105,83,105,82,106,82,106,83,110,81,112,71,112,71,111,72,112,72,111,72,111,71,111,70,112,70,112,71,112,71,113,70,111,68,111,68,111,68,111,68,111,67,112,67,112,68,112,68,113,65,113,64,113,64,112,62,112,61,112,62,112,61,154,72,147,108,121,104,120,105,119,105,119,104,118,104,118,104,113,103,113,103,112,103,112,102,105,102,104,102,101,101,101,94,99,93,98,93,98,91,97,91,97,91,96,91,96,90,94,90,94,85,95,85,94,88,94,89,95,86,95,86,95,86,96,85,96,86,97,86,96,85,94,84,95,82,97,82,96,82,96,81,95,80,95,81,95,81,95,82,96,64,100,67,100,67,106,70,107,70,109,71,109,71,109,71,109,71,109,71,109,72,110,74,108,75,108,75,108,74,106,77,106,77,104,79,106,79,106,79,105,79,104,79,108,76,108,76,110,74,110,74,110,76,109,77,109,78,108,77,108,77,108,78,109,78,108,81,108,81,107,81,108,80,108,80,106,81,107,81,106,82,106,82,106,82,106,81,106,81,107,80,106,80,103,82,104,82,105,83" />
        </map>
    </div>

    <div id="oregon">
        <img src="state_pngs/oregon.png" border="0" usemap="#oregonMap">
        <map name="oregonMap" id="oregonMap">
            <area id="oregonArea" shape="poly" coords="75,139,76,127,76,127,80,122,81,123,81,122,79,122,90,99,91,99,93,91,95,92,96,91,96,92,98,93,98,93,100,94,100,101,111,102,111,103,112,103,112,103,117,104,117,104,118,104,118,105,146,108,146,110,147,110,148,113,139,128,140,128,141,130,134,155,134,155,75,139" />
        </map>
    </div>

    <div id="idaho">
        <img src="state_pngs/idaho.png" border="0" usemap="#idahoMap">
        <map name="idahoMap" id="idahoMap">
            <area id="idahoArea" shape="poly" coords="184,164,135,154,142,129,141,127,140,127,149,111,148,109,147,109,154,71,161,73,160,90,168,103,168,103,168,103,166,113,164,114,164,116,166,118,169,116,169,116,171,124,171,125,172,127,173,127,173,127,173,128,174,132,175,133,181,132,181,132,183,132,183,133,183,133,186,133,187,131,189,134,189,134,184,164" />
        </map>
    </div>

    <div id="california">
        <img src="state_pngs/california.png" border="0" usemap="#californiaMap">
        <map name="californiaMap" id="californiaMap">
            <area id="californiaActiveArea" shape="poly" coords="24,7,58,16,49,51,90,120,84,138,57,136,30,103,17,42,17,23" />
        </map>
    </div>

    <div id="nevada">
        <img src="state_pngs/nevada.png" border="0" usemap="nevadaMap">
        <map name="nevadaMap" id="nevadaMap">
            <area id="nevadaArea" shape="poly" coords="148,219,144,230,144,230,143,229,140,228,138,240,138,240,137,242,101,183,110,148,160,159,148,219" />
        </map>
    </div>
</div>

还有我的 jQuery：

$(function() { // Equivalent to $(document).ready(function() 
  if (!$.browser.msie && !$.browser.version.substr(0,1)<7) {
   $("area").mouseleave(function(){
    $("#mapContainer div").animate({opacity: 1.0}, 100).fadeOut();
   });
  }

  $("#californiaHotspot, #californiaActiveArea").mouseover(function(){
   $("#california").show();
  });

  $("#idahoHotspot, #idahoActiveArea").mouseenter(function(){
   $("#idaho").fadeIn();
  });

  $("#nevadaHotspot, #nevadaActiveArea").mouseenter(function(){
   $("#nevada").fadeIn();
  });
  $("#nevadaActiveArea").mouseleave(function(){
   $("#nevada").hide();
  });

  $("#oregonHotspot, #oregonActiveArea").mouseover(function(){
   $("#oregon").fadeIn();
  });

  $("#washingtonHotspot, #washingtonActiveArea").mouseover(function(){
   $("#washington").fadeIn();
  });
});

Answer 1

我建议使用 jquery .hover() 方法而不是 .mouseover()、.mouseenter()、.mouseleave () 方法来控制图像的显示/隐藏。您可以更可靠地控制 fadein() 和 fadeout() 方法。

http://api.jquery.com/hover/

Answer 2

同意 jQuery 悬停是一个好主意。

另外，我会考虑以下内容：

• 将底图 (CAS_hotspot_exporter_v2.jpg) 设为 div#mapContainer 的背景图像。
• 使用透明的 1px 图像作为图像贴图。
• 将宽度和高度设置为与底图图像相同。
• 为淡入的 div（例如#california）指定 z-index -1。

完成所有这些意味着顶部始终有一个透明表面供鼠标“悬停”在其上，而其他 div 则被引入该表面“下方”。这样，当新的 div 淡入时，浏览器就不会触发 mouseleave 事件。

Answer 3

顶部有透明层的好主意。

让国家图像与国家图像大小相同，并且国家图像除了国家本身之外都是透明的，这不是最简单的方法吗？

只是为了和弦的重用，当然取决于项目的性质 - 图像的重量。