/* Copyright (c) 2008, Katharine Berry
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of Katharine Berry nor the names of any contributors
 *       may be used to endorse or promote products derived from this software
 *       without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY KATHARINE BERRY ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL KATHARINE BERRY BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ******************************************************************************/

// Handle keyboard shortcuts.
AjaxLife.Keyboard = function() {

	var enabled = false;

	function handlekeyboard(key, e)
	{
		if(!AjaxLife.Initialised || !AjaxLife.Network.Connected || !enabled) return;
		AjaxLife.Debug("Keyboard: Got keycode "+key);
		e.preventDefault();
		switch(key)
		{
		case 72: // h
			if(e.shiftKey)
			{
				if(e.altKey)
				{
					AjaxLife.SpatialChat.systemmessage("hippos!");
				}
				else
				{
					AjaxLife.Map.GoHome();
				}
			}
			else
			{
				AjaxLife.SpatialChat.toggle();
			}
			break;
		case 73: // i
			AjaxLife.Inventory.toggle();
			break;
		case 70: // f
			AjaxLife.Search.toggle();
			break;
		case 77: // m
			AjaxLife.Map.toggle();
			break;
		case 81: // q
			// This is duplicated in AjaxLife.Toolbar.js. Should move these both somewhere nice - but where?
			// If this is no longer duplicated in AjaxLife.Toolbar.js, it's either wrong, broken or both.
			AjaxLife.Widgets.Confirm(_("Toolbar.LogoutTitle"),_("Toolbar.LogoutPrompt"), function(btn) {
				if(btn == 'yes')
				{
					AjaxLife.Network.logout();
				}
			});
			break;
		case 49: // 1
			if(!Prototype.Browser.IE) AjaxLife.Stats.toggle(); // Should we stop checking for IE and check for something else?
			break;
		case 83: // s
			AjaxLife.Sound.Toggle();
			break;
		}
	}
	
	function blocktab(key, e)
	{
		if(enabled) return; // This is not a typo. Keyboard enabled = block disabled.
		e.preventDefault();
	}

	return {
		init: function() {
			var body = Ext.get(document.body);
			body.addKeyListener({
					//   [h , i , f , m , q ]
					key: [72, 73, 70, 77, 81],
					ctrl: true,
					shift: false,
					alt: false
				}, handlekeyboard
			);
			body.addKeyListener({
					//   [1 , s ]
					key: [49, 83],
					ctrl: true,
					shift: true,
					alt: false
				}, handlekeyboard
			);
			body.addKeyListener({
					//   tab
					key: 9
				}, blocktab
			);
			enabled = true;
		},
		disable: function() {
			enabled = false;
		},
		enable: function() {
			enabled = true;
		}
	}	
}();