如何在输入框中添加字体图标?

How do I use the search icon included in Font Awesome for input? I have a search feature on my site (based on PHPmotion), that I want to use for the search.

如何使用字体Awesome中包含的搜索图标进行输入?我在我的站点上有一个搜索功能(基于PHPmotion)，我想用于搜索。

Here's the code:

这是代码:

<div id="search-bar">

      <form method="get" action="search.php" autocomplete="off" name="form_search">
        <input type="hidden" name="type" value="videos" />
            <input autocomplete="on" id="keyword" name="keyword" value="Search Videos" onclick="clickclear(this,
            'Search Videos')" onblur="clickrecall(this,'Search Videos')" style="font-family: verdana; font-weight:bold;
            font-size: 10pt; height: 28px; width:186px; color: #000000; padding-left: 2px; float:left; border: 1px solid black; background-color:
            #ffffff" />
            <input type="image" src="http://viddir.com/themes/default/images/search.jpg" height="30" width="30" border="0" style="float:right;"/>
        <div id="searchBoxSuggestions"></div>
        </form>
        </div>

6 个解决方案

#1

You can use another tag instead of input and apply FontAwesome the normal way.

您可以使用另一个标签代替输入，并以正常的方式使用FontAwesome。

instead of your input with type image you can use this:

你可以用这个:

<i class="icon-search icon-2x"></i>

quick CSS:

快速CSS:

.icon-search {
    color:white;
    background-color:black;
}

Here is a quick fiddle: DEMO

这里有一个快速小提琴:演示

You can style it a little better and add event functionality, to the i object, which you can do by using a <button type="submit"> object instead of i, or with javascript.

您可以更好地样式化它，并向i对象添加事件功能，您可以使用对象而不是i，或者使用javascript。

The button sollution would be something like this:

这个按钮是这样的:

<button type="submit" class="icon-search icon-large"></button>

And the CSS:

CSS:

.icon-search {
    height:32px;
    width:32px;
    border: none;
    cursor: pointer;
    color:white;
    background-color:black;
    position:relative;
}

here is my fiddle updated with the button instead of i: DEMO

这是我的小提琴更新的按钮，而不是i: DEMO

---

Update: Using FontAwesome on any tag

The problem with FontAwsome is that its stylesheet uses :before pseudo-elements to add the icons to an element - and pseudo elements don't work/are not allowed on input elements. This is why using FontAwesome the normal way will not work with input.

FontAwsome的问题是它的样式表使用了:在伪元素添加到元素的图标之前，伪元素不能在输入元素上工作/不允许。这就是为什么使用FontAwesome这种普通的方式不能处理输入。

But there is a solution - you can use FontAwesome as a regular font like so:

但是有一个解决方案——你可以使用FontAwesome作为常规字体，比如:

CSS:

CSS:

input[type="submit"] {
    font-family: FontAwesome;
}

HTML:

HTML:

<input type="submit" class="search" value="&#xf002;" />

The glyphs can be passed as values of the value attribute. The ascii codes for the individual letters/icons can be found in the FontAwesome css file, you just need to change them into a HTML ascii number like \f002 to  and it should work.

符号可以作为值属性的值传递。单个字母/图标的ascii码可以在FontAwesome css文件中找到，你只需要把它们变成一个HTML ascii码，比如\f002到它应该工作。

Link to the FontAwesome ascii code (cheatsheet): fortawesome.github.io/Font-Awesome/cheatsheet

链接到FontAwesome ascii码(cheatsheet): fortawesome.github.io/Font-Awesome/cheatsheet。

The size of the icons can be easily adjusted via font-size.

图标的大小可以通过字体大小轻松调整。

See the above example using an input element in a jsfidde:

参见上面的示例，使用jsfidde中的输入元素:

DEMO

#2

Here is a solution that works with simple CSS and standard font awesome syntax, no need for unicode values, etc.

这里有一个解决方案，可以使用简单的CSS和标准的字体很棒的语法，不需要unicode值，等等。

1. Create an <input> tag followed by a standard <i> tag with the icon you need.

   创建一个标记，后面跟着一个标准的标记，带有您需要的图标。

2. Use relative positioning together with a higher layer order (z-index) and move the icon over and on top of the input field.

   使用相对位置与较高的层序(z-index)一起，并将图标移动到输入字段的上方。

3. (Optional) You can make the icon active, to perhaps submit the data, via standard JS.

   (可选)您可以让图标活动，或者通过标准JS提交数据。

See the three code snippets below for the HTML / CSS / JS.

请参阅下面的三个代码片段以获得HTML / CSS / JS。

Or the same in JSFiddle here: Example: http://jsfiddle.net/ethanpil/ws1g27y3/

在JSFiddle也是一样的:示例:http://jsfiddle.net/ethanpil/ws1g27y3/

$('#filtersubmit').click(function() {
  alert('Searching for ' + $('#filter').val());
});

#filtersubmit {
  position: relative;
  z-index: 1;
  left: -25px;
  top: 1px;
  color: #7B7B7B;
  cursor: pointer;
  width: 0;
}

<link href="https://maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css" rel="stylesheet" />
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

<input id="filter" type="text" placeholder="Search" />
<i id="filtersubmit" class="fa fa-search"></i>

#3

For those, who are wondering how to get FontAwesome icons to drupal input, you have to decode_entities first like so:

对于那些想知道如何为drupal输入获取FontAwesome图标的人来说，必须先解码_entities，比如:

$form['submit'] = array(
'#type' => 'submit',
'#value' => decode_entities(''), // code for FontAwesome trash icon
// etc.
);

#4

Change your input to a button element and you can use the Font Awesome classes on it. The alignment of the glyph isn't great in the demo, but you get the idea:

将输入更改为按钮元素，您可以在其上使用字体Awesome类。在演示中，字形的排列不是很好，但是你可以理解:

http://tinker.io/802b6/1

http://tinker.io/802b6/1

<div id="search-bar">
  <form method="get" action="search.php" autocomplete="off" name="form_search">
    <input type="hidden" name="type" value="videos" />
        <input autocomplete="on" id="keyword" name="keyword" value="Search Videos" onclick="clickclear(this,
        'Search Videos')" onblur="clickrecall(this,'Search Videos')" style="font-family: verdana; font-weight:bold;
        font-size: 10pt; height: 28px; width:186px; color: #000000; padding-left: 2px; border: 1px solid black; background-color:
        #ffffff" /><!--
        --><button class="icon-search">Search</button>
    <div id="searchBoxSuggestions"></div>
    </form>
</div>

#search-bar .icon-search {
    width: 30px;
    height: 30px;
    background: black;
    color: white;
    border: none;
    overflow: hidden;
    vertical-align: middle;
    padding: 0;
}

#search-bar .icon-search:before {
    display: inline-block;
    width: 30px;
    height: 30px;
}

The advantage here is that the form is still fully functional without having to add event handlers for elements that aren't buttons but look like one.

这里的优点是，表单仍然是功能齐全的，不需要为不是按钮而是看起来像按钮的元素添加事件处理程序。

#5

.fa-file-o {
    position: absolute;
    left: 50px;
    top: 15px;
    color: #ffffff
}

<div>
 <span class="fa fa-file-o"></span>
 <input type="button" name="" value="IMPORT FILE"/>
</div>

#6

to work this with unicode or fontawesome, you should add a span with class like below, because input tag not support pseudo classes like :after. this is not a direct solution

为了使用unicode或fontawesome，您应该在下面添加一个span，因为输入标签不支持pseudo类，比如:after。这不是直接解

in html:

在html中:

   <span class="button1 search"></span>
<input name="username">

in css:

在css中:

.button1 {
    background-color: #B9D5AD;
    border-radius: 0.2em 0 0 0.2em;
    box-shadow: 1px 0 0 rgba(0, 0, 0, 0.5), 2px 0 0 rgba(255, 255, 255, 0.5); 
    pointer-events: none;
    margin:1px 12px;    
    border-radius: 0.2em;    
    color: #333333;
    cursor: pointer;
    position: absolute;
    padding: 3px;
    text-decoration: none;   

}