/*######################################################################

### YubiKey global namespace

######################################################################*/

var Y = {

	// Information for the currently inserted key.

	keyinfo: {},

	// Declared windows, for easy referencing

	window: {},

	// Convert a string to hexadecimal.

	//

	toHex: function( string ) {

		var hex = '';

		for( var i = 0; i < string.length; i++ )

			hex += string.charCodeAt(i).toString(16);

		return hex;

	},

	// Return a random string of +length+.

	//

	randString: function( length ) {

		var text = '';

		var set  = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';

		for( var i = 0; i < length; i++ )

			text += set.charAt( Math.floor(Math.random() * set.length) );

		return text;

	},

	// Generic delayed callback that returns the timer handle.

	//

	delay: (function() {

		var timer = null;

		return function( callback, ms, clear_previous ) {

			if ( clear_previous) clearTimeout( timer );

			timer = setTimeout( callback, ms );

			return timer;

		};

	})(),

	// Stop the default webkit behavior (viewer) when you drag a file into a window.

	//

	disableDragDrop: function( window ) {

		window.ondragover = function(e) { e.preventDefault(); return false };

		window.ondrop     = function(e) { e.preventDefault(); return false };

	},

	// Node's filesystem interface.

	fs: require( 'fs' ),

	// Manage child processes.

	spawn: require( 'child_process' ).spawn

};

// Make the 'Y' namespace available elsewhere.

global.Y = Y;