防止CSS工具提示退出页面/窗口

Question

我有一个仅限CSS的工具提示,span当你hover链接时它会加载一个工具提示.然而,这是使用CSS定位的,但如果链接靠近页面顶部或侧面,则工具提示会从页面的侧面/顶部移开.

是否有一种方法可以使用css进行此更改,还是我必须依赖JS？我已经开始尝试将一些东西与jQuery放在一起但是如果可能的话宁愿使用CSS.

JS小提琴在https://jsfiddle.net/gtoprh21/12/

片段:

$( ".ktooltip" )
.mouseover(function(e) {
   var mousex = e.pageX + 20; //Get X coordinates
   var mousey = e.pageY + 10; //Get Y coordinates
   if((mousey+100)>$(window).height())
   {

    $('.tooltip')
    .css({ top: mousey-100 ,left: mousex })

   }
   else if((mousex+200)>$(window).width())
   {
      $('.tooltip')
    .css({ top: mousey ,left: mousex-200})

   }
   else
    {
   $('.tooltip')
    .css({ top: mousey, left: mousex })

    }
})

.ref, .refs {
  position:relative;
}
/*added a text indent to overide indent styles further down*/
.ktooltip {
    display: inline-block;
    text-indent:0em;
}

.ref .ktooltiptext, .refs .ktooltiptext {
  visibility:hidden;
  width: 200px;
  background: #fff;
  border-radius: 6px;
  padding: 5px 5px;
  top: -40px;
  left: 10px;
  border:2px solid grey;
  line-height: normal;

    /* Position the tooltip */
    position: absolute;
    z-index: 1;
}

.ref:hover .ktooltiptext, .refs:hover .ktooltiptext {
    visibility: visible;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<p>
 <span id="edtxt.trans1" class="tei l">My hope is in a bishop,
 <!--link to a reference -->
   <sup class="ref expl">
     <a href="#edtxt-explnote1" id="reference-to-edtxt-explnote1" class="ktooltip">1</a>
       <!-- lhe reference in a tooltip -->
       <span class="ktooltiptext">According to tradition <span style="name">Nicholas</span> was bishop of Myra in Lycia (south-west Turkey today).</span>
   </sup>
  </span><br>
  <span id="trans2" class="tei l">and in almighty God and his never-ending miracles.</span><br>
  <span id="trans3" class="tei l">Generous Saint Nicholas holds an office,</span><br>
  <span id="trans4" class="tei l">there is a gold symbol in his sign.
    <!-- likn to ref -->
    <sup class="ref expl">
      <a href="#edtxt-explnote2" id="reference-to-edtxt-explnote2" class="ktooltip">2</a>
        <!-- the tooltip -->
        <span class="ktooltiptext"> One of <span style="">Nicholas’s</span> symbols was three <sup>bags</sup> of gold <span style="font-variant: small-caps;">which</span> were the <span style="color: red;">dowry</span> he provided <span style="color: blue;">for</span> three <span style="color: green;">girls</span>
        </span>
    </sup>
   </span><br>
   </p>

Answer 1

不幸的是,如果你想保持工具提示的良好定位,那么只能使用CSS.

脚本解决方案

但是,由于您已经在使用某些脚本,我建议您使用此解决方案:

• 使用position: absolute到的位置.ktooltiptext相应地.ref,
• 使用该.getBoundingClientRect()方法可以轻松获取工具提示的位置和大小,
• 如果没有,应用一些修正window,
• 还在CSS中进行了一些修改.

仅使用原生JavaScript的代码段(避免使用jQuery,文档会更轻松.)

var ktooltips = document.querySelectorAll(".ktooltip");
ktooltips.forEach(function(ktooltip, index){                // For each ktooltip
  ktooltip.addEventListener("mouseover", position_tooltip); // On hover, launch the function below
})

function position_tooltip(){
  // Get .ktooltiptext sibling
  var tooltip = this.parentNode.querySelector(".ktooltiptext");
  
  // Get calculated ktooltip coordinates and size
  var ktooltip_rect = this.getBoundingClientRect();

  var tipX = ktooltip_rect.width + 5; // 5px on the right of the ktooltip
  var tipY = -40;                     // 40px on the top of the ktooltip
  // Position tooltip
  tooltip.style.top = tipY + 'px';
  tooltip.style.left = tipX + 'px';

  // Get calculated tooltip coordinates and size
  var tooltip_rect = tooltip.getBoundingClientRect();
  // Corrections if out of window
  if ((tooltip_rect.x + tooltip_rect.width) > window.innerWidth) // Out on the right
    tipX = -tooltip_rect.width - 5;  // Simulate a "right: tipX" position
  if (tooltip_rect.y < 0)            // Out on the top
    tipY = tipY - tooltip_rect.y;    // Align on the top

  // Apply corrected position
  tooltip.style.top = tipY + 'px';
  tooltip.style.left = tipX + 'px';
}

.ref,
.refs {
  position: relative;
}

.ktooltip {
  display: inline-block;
  text-indent: 0em;
}

.ref .ktooltiptext,
.refs .ktooltiptext {
  visibility: hidden;
  width: 200px;
  background: #fff;
  border-radius: 6px;
  padding: 5px;       /* TAKIT: Changed here */
  top: -999px;        /* TAKIT: Changed here */
  left: -999px;       /* TAKIT: Changed here */
  border: 2px solid grey;
  line-height: normal;
  position: absolute; /* TAKIT: Changed here */
  z-index: 1;
}

.ref:hover .ktooltiptext,
.refs:hover .ktooltiptext {
  visibility: visible;
}

<p>
  <span id="edtxt.trans1" class="tei l">My hope is in a bishop,
 <!--link to a reference -->
   <sup class="ref expl">
     <a href="#edtxt-explnote1" id="reference-to-edtxt-explnote1" class="ktooltip">1</a>
       <!-- the reference in a tooltip -->
       <span class="ktooltiptext">According to tradition <span style="name">Nicholas</span> was bishop of Myra in Lycia (south-west Turkey today).</span>
  </sup>
  </span><br>
  <span id="trans2" class="tei l">and in almighty God and his never-ending miracles.</span><br>
  <span id="trans3" class="tei l">Generous Saint Nicholas holds an office,</span><br>
  <span id="trans4" class="tei l">there is a gold symbol in his sign.
    <!-- link to ref -->
    <sup class="ref expl">
      <a href="#edtxt-explnote2" id="reference-to-edtxt-explnote2" class="ktooltip">20</a>
        <!-- the tooltip -->
        <span class="ktooltiptext"> One of <span style="">Nicholas’s</span> symbols was three <sup>bags</sup> of gold <span style="font-variant: small-caps;">which</span> were the <span style="color: red;">dowry</span> he provided <span style="color: blue;">for</span>  three <span style="color: green;">girls</span>
  </span>
  </sup>
  </span><br>
</p>

使用jQuery的代码段

$(".ktooltip").mouseover(function(e) {
  var tooltip = $(this).siblings('.ktooltiptext'); // Get tooltip element (ktooltiptext)
  var tipX = $(this).outerWidth() + 5;             // 5px on the right of the ktooltip
  var tipY = -40;                                  // 40px on the top of the ktooltip
  tooltip.css({ top: tipY, left: tipX });          // Position tooltip

  // Get calculated tooltip coordinates and size
  var tooltip_rect = tooltip[0].getBoundingClientRect();
  // Corrections if out of window
  if ((tooltip_rect.x + tooltip_rect.width) > $(window).width()) // Out on the right
    tipX = -tooltip_rect.width - 5; // Simulate a "right: tipX" position
  if (tooltip_rect.y < 0)            // Out on the top
    tipY = tipY - tooltip_rect.y;    // Align on the top

  // Apply corrected position
  tooltip.css({ top: tipY, left: tipX }); 
});

.ref,
.refs {
  position: relative;
}

.ktooltip {
  display: inline-block;
  text-indent: 0em;
}

.ref .ktooltiptext,
.refs .ktooltiptext {
  visibility: hidden;
  width: 200px;
  background: #fff;
  border-radius: 6px;
  padding: 5px;       /* TAKIT: Changed here */
  top: -999px;        /* TAKIT: Changed here */
  left: -999px;       /* TAKIT: Changed here */
  border: 2px solid grey;
  line-height: normal;
  position: absolute; /* TAKIT: Changed here */
  z-index: 1;
}

.ref:hover .ktooltiptext,
.refs:hover .ktooltiptext {
  visibility: visible;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<p>
  <span id="edtxt.trans1" class="tei l">My hope is in a bishop,
 <!--link to a reference -->
   <sup class="ref expl">
     <a href="#edtxt-explnote1" id="reference-to-edtxt-explnote1" class="ktooltip">1</a>
       <!-- the reference in a tooltip -->
       <span class="ktooltiptext">According to tradition <span style="name">Nicholas</span> was bishop of Myra in Lycia (south-west Turkey today).</span>
  </sup>
  </span><br>
  <span id="trans2" class="tei l">and in almighty God and his never-ending miracles.</span><br>
  <span id="trans3" class="tei l">Generous Saint Nicholas holds an office,</span><br>
  <span id="trans4" class="tei l">there is a gold symbol in his sign.
    <!-- link to ref -->
    <sup class="ref expl">
      <a href="#edtxt-explnote2" id="reference-to-edtxt-explnote2" class="ktooltip">20</a>
        <!-- the tooltip -->
        <span class="ktooltiptext"> One of <span style="">Nicholas’s</span> symbols was three <sup>bags</sup> of gold <span style="font-variant: small-caps;">which</span> were the <span style="color: red;">dowry</span> he provided <span style="color: blue;">for</span>  three <span style="color: green;">girls</span>
  </span>
  </sup>
  </span><br>
</p>

使用上面的任何一个片段,你可以玩你的窗口看到弹出窗口不会出现在右边!它也不应该排在最前面.

⋅·⋅

仅限CSS的建议

现在,如果您对工具提示的定位不太关心,可以使用此解决方案,我没有更改任何HTML:

• 使用position: relative;的span元素,把它作为一个参考,
• 使用position: absolute上.ktooltiptext,
• 根据需要使用top和left定位.ktooltiptext.

使用该解决方案,工具提示将保持其样式,但将在span元素下方的左侧对齐,因此工具提示永远不会在右侧或顶部出现.

p span { /* TAKIT: Changed here */
  position: relative;
}

.ktooltip {
  display: inline-block;
  text-indent: 0em;
}

.ref .ktooltiptext,
.refs .ktooltiptext {
  visibility: hidden;
  width: 200px;
  background: #fff;
  border-radius: 6px;
  padding: 5px;       /* TAKIT: Simplified here */     
  border: 2px solid grey;
  line-height: normal;
  position: absolute; /* TAKIT: Changed */
  top: 20px;          /* TAKIT: Changed */
  left: 0;            /* TAKIT: Added to always align tooltip on the left of the span */ 
  z-index: 1;
}

.ref:hover .ktooltiptext,
.refs:hover .ktooltiptext {
  visibility: visible;
}

<p>
  <span id="edtxt.trans1" class="tei l">My hope is in a bishop,
 <!--link to a reference -->
   <sup class="ref expl">
     <a href="#edtxt-explnote1" id="reference-to-edtxt-explnote1" class="ktooltip">1</a>
       <!-- the reference in a tooltip -->
       <span class="ktooltiptext">According to tradition <span style="name">Nicholas</span> was bishop of Myra in Lycia (south-west Turkey today).</span>
  </sup>
  </span><br>
  <span id="trans2" class="tei l">and in almighty God and his never-ending miracles.</span><br>
  <span id="trans3" class="tei l">Generous Saint Nicholas holds an office,</span><br>
  <span id="trans4" class="tei l">there is a gold symbol in his sign.
    <!-- link to ref -->
    <sup class="ref expl">
      <a href="#edtxt-explnote2" id="reference-to-edtxt-explnote2" class="ktooltip">20</a>
        <!-- the tooltip -->
        <span class="ktooltiptext"> One of <span style="">Nicholas’s</span> symbols was three <sup>bags</sup> of gold <span style="font-variant: small-caps;">which</span> were the <span style="color: red;">dowry</span> he provided <span style="color: blue;">for</span>  three <span style="color: green;">girls</span>
  </span>
  </sup>
  </span><br>
</p>

Answer 2

您可以仅使用CSS而不使用JS来尝试此操作。不是最优雅的工具提示类型，但是它永远不会让您失望，也永远不会让您放弃:)

    .ktooltip {
        display: inline-block;
        text-indent:0em;
    }
    
    .ktooltiptext, .ktooltiptext {
    display: none;
        width: calc(100vw - 35px);
        background: #fff;
        border-radius: 6px;
        padding: 5px 5px;
        left: 10px;
        border: 2px solid grey;
        line-height: normal;
        text-decoration: none;
        position: absolute;
        z-index: 1;
    
    }
    
    p {display:inline-block}
    
    .ktooltip:hover + span {
        display: block;
    }

    <p>
     <span id="edtxt.trans1" class="tei l">My hope is in a bishop,
     <!--link to a reference -->
    <div style="display:inline-block">
      <a href="#edtxt-explnote1" id="reference-to-edtxt-explnote1" class="ktooltip">1</a>
         
    <span class="ktooltiptext">According to tradition <span style="name">Nicholas</span> was bishop of Myra in Lycia (south-west Turkey today).</span>
    </div>
    
      </span><br>
      <span id="trans2" class="tei l">and in almighty God and his never-ending miracles.    </span><br>
      <span id="trans3" class="tei l">Generous Saint Nicholas holds an office,</span><br>
      <span id="trans4" class="tei l">there is a gold symbol in his sign.
        <!-- likn to ref -->
          <a href="#edtxt-explnote2" id="reference-to-edtxt-explnote2" class="ktooltip">2</a>
            <span class="ktooltiptext" onclick="return false;"> One of <span style="">Nicholas’s</span> symbols was three <sup>bags</sup> of gold <span style="font-variant: small-caps;">which</span> were the <span style="color: red;">dowry</span> he provided <span style="color: blue;">for</span> three <span style="color: green;">girls</span>
            </span>
       </span><br>
       </p>

https://jsfiddle.net/gtoprh21/72/