nitstorm

gistfile1.js

function codeRunner(){
	var cb = document.getElementById("checkbox"), ppab = document.getElementById("ppa-box"); // checkbox is used twice, no need to select it twice. Same for ppa-box (referenced three times, called twice)
// 	Unlock PPA when Checkbox is ticked
	cb.onclick = function(){
		if(cb.checked){
			ppab.disabled=false;
		}
		else
		{
			ppab.disabled=true;
			ppab.value="";
		}
	}


//Form submission	
	document.getElementById("main-form").onsubmit = function(){

	// Get Value from Form	
		var packageValue = document.getElementById("package-box").value;
		var ppaValue = ppab.value;

	// Code Mangling to achieve Markdown	
		var imageCode = "<b> [" + packageValue + " ![software_center_icon](http://i.imgur.com/puwkM.png)](http://apt.ubuntu.com/p/" + packageValue + ") </b><br /><br />";
		var mandatoryLine = "<i>Run the following to install the package via a terminal (Default keyboard shortcut: <kbd>Ctrl</kbd><kbd>Alt</kbd><kbd>T</kbd>) </i><br />";
		var packageInstruc = "sudo apt-get update && sudo apt-get install " + packageValue;
		var ppaInstruc = "sudo add-apt-repository " + ppaValue

	// Final Usage Variables
		var packageOnly = imageCode + mandatoryLine + "<pre>" + packageInstruc + "</pre>";
		var ppaPackage = mandatoryLine + "<pre>" + ppaInstruc + "<br />" +  packageInstruc + "</pre>";

	// Code output into text area	
		var code = document.getElementById("code"); // this doesn't really need to be done, but save yourself a few bytes.
		if(ppaValue == ""){
			code.appendChild(document.createTextNode(packageOnly));
		}	
		else{
			code.appendChild(document.createTextNode(ppaPackage));
		}

		return false;
	}


}


window.onload = function(){
		codeRunner();
};