在点击主体上切换类

Question

我知道很多类似的问题也在Stackoverflow中。这是一个Jquery问题。我添加了toggle类Jquery函数，并且当单击body上的任何位置时应该删除相同的类。它现在正在工作，但是当我们点击输入文本字段时，我不需要切换该类。

代码：

var removeClass = true;
$(".btn-search").click(function() {
  $(".input-search").toggleClass('expanded');
  removeClass = false;
});
$("html").click(function() {
  if (removeClass) {
    $(".input-search").removeClass('expanded');
  }
  removeClass = true;
});

body {
  background: #eee;
}

.col-search {
  padding: 13px 8px 8px 0;
  position: relative;
  width: 80%;
}

.input-search {
  width: 220px;
  height: 34px;
  max-width: 0;
  padding: 5px 10px;
  transition: all .2s ease;
  position: absolute;
  top: 13px;
  bottom: 13px;
  right: 46px;
  border: 0;
  box-sizing: border-box;
  opacity: 0;
}

.input-search.expanded {
  max-width: 220px;
  opacity: 1;
}

.btn-search {
  position: absolute;
  right: 0;
  width: 38px;
  height: 34px;
  border: 0;
  background: #333;
  color:#fff;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
<div class="col-search">
  <input class="input-search" type="search" placeholder="Search" />
  <input type="button" class="btn-search" value="click">
</div>

JS小提琴：https://jsfiddle.net/vishnuprasadps/3a84p6h0/

Answer 1

要解决此问题，您可以检查哪个元素引发了冒充DOM的click事件。如果它不在.col-search范围内，那么您可以切换课程。

另请注意，此逻辑会使您的removeClass变量变得多余。

＆＃13;

＆＃13;

$(".btn-search").click(function(e) {
  e.stopPropagation();
  $(".input-search").toggleClass('expanded');
});

$("html").click(function(e) {
  if ($(e.target).closest('.col-search').length == 0)
    $(".input-search").removeClass('expanded');
});

＆＃13;

body {
  background: #eee;
}

.col-search {
  padding: 13px 8px 8px 0;
  position: relative;
  width: 80%;
}

.input-search {
  width: 220px;
  height: 34px;
  max-width: 0;
  padding: 5px 10px;
  transition: all .2s ease;
  position: absolute;
  top: 13px;
  bottom: 13px;
  right: 46px;
  border: 0;
  box-sizing: border-box;
  opacity: 0;
}

.input-search.expanded {
  max-width: 220px;
  opacity: 1;
}

.btn-search {
  position: absolute;
  right: 0;
  width: 38px;
  height: 34px;
  border: 0;
  background: #333;
  color: #fff;
}

＆＃13;

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
<div class="col-search">
  <input class="input-search" type="search" placeholder="Search" />
  <input type="button" class="btn-search" value="click">
</div>

＆＃13;

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Answer 2

请务必使用event.target

检查您要排除的输入是否触发了事件

这也不会干扰可能与输入本身绑定的其他事件。

＆＃13;

＆＃13;

var removeClass = true;
$(".btn-search").click(function() {
  $(".input-search").toggleClass('expanded');
  removeClass = false;
});
$("html").click(function() {
  var searchInput = $(".input-search");
  if (removeClass && event.target != searchInput[0]) {
    searchInput.removeClass('expanded');
  }
  removeClass = true;
});

＆＃13;

body {
  background: #eee;
}

.col-search {
  padding: 13px 8px 8px 0;
  position: relative;
  width: 80%;
}

.input-search {
  width: 220px;
  height: 34px;
  max-width: 0;
  padding: 5px 10px;
  transition: all .2s ease;
  position: absolute;
  top: 13px;
  bottom: 13px;
  right: 46px;
  border: 0;
  box-sizing: border-box;
  opacity: 0;
}

.input-search.expanded {
  max-width: 220px;
  opacity: 1;
}

.btn-search {
  position: absolute;
  right: 0;
  width: 38px;
  height: 34px;
  border: 0;
  background: #333;
  color:#fff;
}

＆＃13;

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
<div class="col-search">
  <input class="input-search" type="search" placeholder="Search" />
  <input type="button" class="btn-search" value="click">
</div>

＆＃13;

＆＃13;

＆＃13;

Answer 3

只需使用返回值更改输入事件的JS https://jsfiddle.net/fcdo7kyh/

    var removeClass = true;
$(".btn-search").click(function() {
  $(".input-search").toggleClass('expanded');
  removeClass = false;
});
$(".input-search").click(function() {
  return false;
});

$("html").click(function() {
  if (removeClass) {
    $(".input-search").removeClass('expanded');
  }
  removeClass = true;
});

Answer 4

请检查以下代码：

HTML：

<input class="input-search" type="search" placeholder="Search" id="inputSearch" />

JS：

$("#inputSearch").click(function(e) {
    e.stopPropagation();
});

＆＃13;

＆＃13;

var removeClass = true;
$(".btn-search").click(function() {
  $(".input-search").toggleClass('expanded');
  removeClass = false;
});
$("html").click(function() {
  if (removeClass) {
    $(".input-search").removeClass('expanded');
  }
  removeClass = true;
});
$("#inputSearch").click(function(e) {
    e.stopPropagation();
});

＆＃13;

body {
  background: #eee;
}

.col-search {
  padding: 13px 8px 8px 0;
  position: relative;
  width: 80%;
}

.input-search {
  width: 220px;
  height: 34px;
  max-width: 0;
  padding: 5px 10px;
  transition: all .2s ease;
  position: absolute;
  top: 13px;
  bottom: 13px;
  right: 46px;
  border: 0;
  box-sizing: border-box;
  opacity: 0;
}

.input-search.expanded {
  max-width: 220px;
  opacity: 1;
}

.btn-search {
  position: absolute;
  right: 0;
  width: 38px;
  height: 34px;
  border: 0;
  background: #333;
  color:#fff;
}

＆＃13;

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
<div class="col-search">
  <input class="input-search" type="search" placeholder="Search" id="inputSearch" />
  <input type="button" class="btn-search" value="click">
</div>

＆＃13;

＆＃13;

＆＃13;

这是你期望的吗？

Answer 5

好又简单

$(".btn-search").click(function(event) {
	event.stopPropagation();
  $(".input-search").toggleClass('expanded');
});
$("html").click(function() { 
    $(".input-search").removeClass('expanded'); 
});
$(".input-search").click(function(event) {
	event.stopPropagation();
  $(".input-search").addClass('expanded');
 
});

body {
  background: #eee;
}

.col-search {
  padding: 13px 8px 8px 0;
  position: relative;
  width: 80%;
}

.input-search {
  width: 220px;
  height: 34px;
  max-width: 0;
  padding: 5px 10px;
  transition: all .2s ease;
  position: absolute;
  top: 13px;
  bottom: 13px;
  right: 46px;
  border: 0;
  box-sizing: border-box;
  opacity: 0;
}

.input-search.expanded {
  max-width: 220px;
  opacity: 1;
  z-index: 10;
}

.btn-search {
  position: absolute;
  right: 0;
  width: 38px;
  height: 34px;
  border: 0;
  background: #333;
  color:#fff;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.0.2/jquery.min.js"></script>
<div class="col-search">
  <input class="input-search" type="search" placeholder="Search" />
  <input type="button" class="btn-search" value="click">
</div>