Make two textareas side by side sharing a flexible border

Question

Make two textareas side by side sharing a flexible border

1.3k views Asked by AudioBubble At 22 November 2024 at 21:54

I want to make two textareas side by side, which share a same border. Then we could drag the border and change their width, while keeping the sum of their widths constant. In other words, it is like the panels inside JSBin.

Does anyone know how to realise this?

PS: here is the code to make two stationary textareas side by side:

<!DOCTYPE html>
<html>
<head>
  <title>JS Bin</title>
</head>
<body>
  <textarea name="t1"></textarea>
  <textarea name="t2"></textarea>   
</body>
</html>

Edit 1: the following code is from index.html of JSBin. But I don't see how it manages to realise the sharing border:

  <div id="panelswaiting">
    <div class="code stretch html panel">
      <div role="menubar" class="label menu" tabindex="0"><span class="name"><strong><a href="#htmlprocessors" role="menuitem" class="fake-dropdown button-dropdown">Processor</a></strong></span><div class="dropdown" id="htmlprocessors">
          <div role="menu" aria-hidden="true" class="dropdownmenu processorSelector" data-type="html">
            <a role="menuitemradio" aria-checked="true" href="#html" data-label="HTML">HTML</a>
            <a role="menuitemradio" href="#markdown">Markdown</a>
            <a role="menuitemradio" href="#jade">Jade</a>
            <a href="#convert">Convert to HTML</a>
          </div>
        </div>
      </div>
      <div class="editbox">
        <textarea aria-label="HTML Code Panel" spellcheck="false" autocapitalize="none" autocorrect="off" id="html"></textarea>
      </div>
    </div>
    <div class="code stretch javascript panel">
      <div role="menubar" class="label menu" tabindex="0"><span class="name"><strong><a role="menuitem" class="fake-dropdown button-dropdown" href="#javascriptprocessors">Processor</a></strong></span>
        <div class="dropdown" id="javascriptprocessors">
          <div role="menu" aria-hidden="true" class="dropdownmenu processorSelector" data-type="javascript">
            <a role="menuitemradio" aria-checked="true" href="#javascript" data-label="JavaScript">JavaScript</a>
            <a role="menuitemradio" href="#babel">ES6 / Babel</a>
            <a role="menuitemradio" href="#jsx">JSX (React)</a>
            <a role="menuitemradio" href="#coffeescript">CoffeeScript</a>
            <a role="menuitemradio" href="#traceur">Traceur</a>
            <a role="menuitemradio" href="#typescript">TypeScript</a>
            <a role="menuitemradio" href="#processing">Processing</a>
            <a role="menuitemradio" href="#livescript">LiveScript</a>
            <a role="menuitemradio" href="#clojurescript">ClojureScript</a>
            <a role="menuitem" href="#convert">Convert to JavaScript</a>
          </div>
        </div>
      </div>
      <div class="editbox">
        <textarea aria-label="JavaScript Code Panel" spellcheck="false" autocapitalize="none" autocorrect="off" id="javascript"></textarea>
      </div>
    </div>
    ...
  </div>

Edit 2:

Following the answer of Ankit vadariya, I have made a minimum case... There is only one thing left: how to ensure the min-width of .panel-right? It does not seem to work at the moment...

One way is to set max-width of .panel-left, but if we look at JSBin, there is no limit of max-width for each panel, whereas there is min-width...

Original Q&A

There are 2 answers

psiclone On 21 December 2016 at 20:13

The only way I can see to do this is using something like JavaScript and analyzing in real-time the width of one to get the other to add to 100%.

**Ankit vadariya** · Accepted Answer · 2016-12-21 19:33:58

Here is the your solution

Hope it will work for you.

Code

$(".panel-left").resizable({
   handleSelector: ".splitter",
   resizeHeight: false
 });

 $(".panel-top").resizable({
   handleSelector: ".splitter-horizontal",
   resizeWidth: false
 });

CSS

html,
body {
  height: 100%;
  font-family: 'Trebuchet MS', 'Lucida Sans Unicode', 'Lucida Grande', 'Lucida Sans', Arial, sans-serif;
  padding: 0;
  margin: 0;
  overflow: auto;
}

.page-container {
  margin: 20px;
}


/* horizontal panel*/

.panel-container {
  display: flex;
  flex-direction: row;
  border: 1px solid silver;
  overflow: hidden;

  /* avoid browser level touch actions */
  xtouch-action: none;
}

.panel-left {
  flex: 0 0 auto;
  /* only manually resize */
  padding: 10px;
  width: 300px;
  min-height: 200px;
  min-width: 150px;
  white-space: nowrap;
  background: #838383;
  color: white;
}

.splitter {
  flex: 0 0 auto;
  width: 18px;  
  background: url(https://raw.githubusercontent.com/RickStrahl/jquery-resizable/master/assets/vsizegrip.png) center center no-repeat #535353;
  min-height: 200px;
  cursor: col-resize;  
}

.panel-right {
  flex: 1 1 auto;
  /* resizable */
  padding: 10px;
  width: 100%;
  min-height: 200px;
  min-width: 200px;
  background: #eee;
}


/* vertical panel */

.panel-container-vertical {
  display: flex;
  flex-direction: column;
  height: 500px;
  border: 1px solid silver;
  overflow: hidden;
}

.panel-top {
  flex: 0 0 auto;
  /* only manually resize */
  padding: 10px;
  height: 150px;
  width: 100%;
  white-space: nowrap;
  background: #838383;
  color: white;
}

.splitter-horizontal {
  flex: 0 0 auto;
  height: 18px;
  background: url(https://raw.githubusercontent.com/RickStrahl/jquery-resizable/master/assets/hsizegrip.png) center center no-repeat #535353;
  cursor: row-resize;
}

.panel-bottom {
  flex: 1 1 auto;
  /* resizable */
  padding: 10px;
  min-height: 200px;
  background: #eee;
}

label {
  font-size: 1.2em;
  display: block;
  font-weight: bold;
  margin: 30px 0 10px;
}

pre {
  margin: 20px;
  padding: 10px;
  background: #eee;
  border: 1px solid silver;
  border-radius: 4px;
  overflow: auto;
}

HTML

<html>
<head>
    <title>Simple Split Panels - jquery-resizable</title>
    <meta charset="utf-8"/>
</head>
<body style="">
    <div class="page-container">

        <h1>
           jquery-resizable - A simple splitter panel
        </h1>
        <hr />

        <p>
            Simple example that demonstrates how to create slidable two-pane layouts <a href="http://caniuse.com/#search=flexbox">using FlexBox</a> and the resizable plug-in.
            Note that Flexbox is not required, but used here to keep the layout simple.
        </p>

        <label>Horizontal Splitter Panes:</label>

        <div class="panel-container">

            <div class="panel-left">
                left panel
            </div>

            <div class="splitter">
            </div>

            <div class="panel-right">
                right panel
            </div>
        </div>

        <label>Vertical Splitter Panes:</label>
        <div class="panel-container-vertical">

            <div class="panel-top">
                top panel
            </div>

            <div class="splitter-horizontal">
            </div>

            <div class="panel-bottom">
                bottom panel
            </div>
        </div>



        <hr />

        <p>
            This example creates two resizables for the horizontal and vertical splitter panes:
        </p>
<pre>
&lt;script src=&quot;//ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js&quot;&gt;&lt;/script&gt;
&lt;script src=&quot;../src/jquery-resizable.js&quot;&gt;&lt;/script&gt;
&lt;script&gt;
    $(&quot;.panel-left&quot;).resizable({
        handleSelector: &quot;.splitter&quot;,
        resizeHeight: false
    });
    $(&quot;.panel-top&quot;).resizable({
        handleSelector: &quot;.splitter-horizontal&quot;,
        resizeWidth: false
    });
&lt;/script&gt;
</pre>
    </div>


</body>
</html>

TechQA.

Make two textareas side by side sharing a flexible border

There are 2 answers

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