Archive for August 20th, 2008

This post is obsolete. Please see the updated post.

The phone pad below is messed up in Internet Explorer. I know. I don't care anymore. The plugin, however, works.

	$('div.test input:button').click(function(){
		$('.output').sendkeys($('div.test input:text').val());
	$('.phonepad input').click(function(){
		$('.output').sendkeys( || this.value);
	$('.output:first').bind('keypress', function(evt){
		$('#keypress').text($('#keypress').text()+' '+evt.which);
	}).bind('sendkeys', function(evt){
		$('#sendkeys').text($('#sendkeys').text()+' '+evt.which);

<textarea class="output"></textarea>
<input type="text" class="output" />
<div class="phonepad"><input type="button" name="{leftarrow}" value="&larr;"/><input type="button" name="{rightarrow}" value="&rarr;"/><input type="button" name="{backspace}" value="BS"/><input type="button" value="7" /><input type="button" value="8" /><input type="button" value="9" /><input type="button" value="4" /><input type="button" value="5" /><input type="button" value="6" /><input type="button" value="1" /><input type="button" value="2" /><input type="button" value="3" /><input type="button" value="*" /><input type="button" value="0" /><input type="button" value="#" /></div>
<div class="test"><input type="text" /><input type="button" value="test"/></div>
<div id="keypress">keypress event.which:</div>
<div id="sendkeys">sendkeys event.which:</div>

The $.fn.sendkeys Plugin

I wanted to make a general-purpose onscreen keypad, and wasted a huge amount of time trying to find a way to simulate a keypress. $(element).trigger("keypress",...) won't work. Neither will keyup or keydown. For security reasons, I guess, you can't tell an element to pretend a key was pressed. The browser is too worried that you will access menus or something.

So I wrote my own plugin and named it after Microsoft's sendkeys which does similar things. For any element elem that is a <textarea> or <input type="text">, $(elem).sendkeys(string) inserts string at the insertion point or selection. It's the insertion point sensitivity that makes it more sophisticated than elem.value += string.


Download $.fn.sendkeys.

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