“滚动”到长文本输入的右边 [英] "Scroll" to the very right of a long text input

问题描述

我有一个图片选择器，可以从图库中选择图片，然后将网址填入< input type =text> 字段。 URL可能非常长，并且总是看到文本字段中的URL的上半部分具有非常少的信息值。

有人知道一种方式滚动到文本字段的最右侧，以便URL的结尾可见，而不是开始？

解决方案

除IE6-8 / Opera以外的所有浏览器

设置 HTMLInputElement.setSelectionRange （） 显式设置 focus（）后输入值的长度。

  var foo = document.getElementById（foo）; foo.value =http://stackoverflow.com/questions/1962168/scroll-to-the-very-right-of-a-long-text-input\";foo.focus （）; foo.setSelectionRange（foo.value.length，foo.value.length）;  

 < input id =foo>  
 

除IE / Opera以外的所有浏览器

如果您不关心整个IE，请设置 Element.scrollLeft 到 Element.scrollWidth 。缺点是浏览器支持少。

  var foo = document.getElementById foo）; foo.value =http://stackoverflow.com/questions/1962168/scroll-to-the-very-right-of-a-long-text-input\";foo.scrollLeft = foo.scrollWidth ;  

 < input id =foo>  
 

所有浏览器

如果你想支持每一个浏览器，考虑用 dir （direction）属性来欺骗它，你设置为 rtl （从右到左）。缺点是，它是一个黑客，当它是可编辑的和/或你开发一个方向敏感的网站，但是这适用于所有浏览器，是非常好的只读输入真正需要考虑。

  var foo = document.getElementById（foo）; foo.value =http://stackoverflow.com / questions / 1962168 / scroll-to-the-very-right-of-a-long-text-input;  

 < input id =foodir =rtl>  

I have an image selector that allows to choose an image from a gallery, then fills in the URL into a <input type="text"> field. The URLs can be awfully long, and always seeing the first half of the URL in the text field has very little informational value.

Does somebody know a way to "scroll" to the very right of the text field so that the end of the URL is visible instead of the beginning? Without resorting to a textarea.

解决方案

All browsers except IE6-8/Opera

Set HTMLInputElement.setSelectionRange() to the length of the input value after explicitly setting the focus(). The disadvantage is that it scrolls back to start once blurred.

var foo = document.getElementById("foo");
foo.value = "http://stackoverflow.com/questions/1962168/scroll-to-the-very-right-of-a-long-text-input";
foo.focus();
foo.setSelectionRange(foo.value.length,foo.value.length);

<input id="foo">  

All browsers except IE/Opera

If you don't care about IE in its entirety, then set Element.scrollLeft to Element.scrollWidth. The disadvantage is the less browser support.

var foo = document.getElementById("foo");
foo.value = "http://stackoverflow.com/questions/1962168/scroll-to-the-very-right-of-a-long-text-input";
foo.scrollLeft = foo.scrollWidth;

<input id="foo">

All browsers

If you'd like to support every single browser, consider to trick it with the dir (direction) attribute which you set to rtl (right-to-left). The disadvantage is that it's a hack which really need to be taken into consideration when it's editable and/or you develop a direction sensitive website, but this works on all browsers and is great on readonly inputs.

var foo = document.getElementById("foo");
foo.value = "http://stackoverflow.com/questions/1962168/scroll-to-the-very-right-of-a-long-text-input";

<input id="foo" dir="rtl">  

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