/**
* Copyright (c) 2012 Erik Sargent <esthepiking at gmail dot com>
* This file is licensed under the Affero General Public License version 3 or
* later.
*/

/*****************************
* Keyboard shortcuts for Files app
* ctrl/cmd+n: new folder
* ctrl/cmd+shift+n: new file
* esc (while new file context menu is open): close menu
* up/down: select file/folder
* enter: open file/folder
* delete/backspace: delete file/folder
* ctrl/cmd+shift+r: rename file/folder
*****************************/
var Files = Files || {};

(function(Files){
var keys = [];
var keyCodes = {
	shift: 16,
	n: 78,
	r: 82,
	cmdFirefox: 224,
	cmdOpera: 17,
	leftCmdWebKit: 91,
	rightCmdWebKit: 93,
	ctrl: 17,
	esc: 27,
	downArrow: 40,
	upArrow: 38,
	enter: 13,
	del: 46
};

function removeA(arr) {
    var what, a = arguments, L = a.length, ax;
    while (L > 1 && arr.length) {
        what = a[--L];
        while ((ax = arr.indexOf(what)) !== -1) {
            arr.splice(ax, 1);
        }
    }
    return arr;
}

function newFile(){
	$("#new").addClass("active");
	$(".popup.popupTop").toggle(true);
	$('#new li[data-type="file"]').trigger('click');
	removeA(keys, keyCodes.n);
}
function newFolder(){
	$("#new").addClass("active");
	$(".popup.popupTop").toggle(true);
	$('#new li[data-type="folder"]').trigger('click');
	removeA(keys, keyCodes.n);
}
function esc(){
	$("#controls").trigger('click');
}
function down(){
	var select = -1;
	$("#fileList tr").each(function(index){
		if($(this).hasClass("mouseOver")){
	        select = index + 1;
	        $(this).removeClass("mouseOver");
        }
	});
	
	if(select === -1){
		$("#fileList tr:first").addClass("mouseOver");
	}
	else{
		$("#fileList tr").each(function(index){
			if(index === select){
				$(this).addClass("mouseOver");
			}
		});
	}
}
function up(){
	var select = -1;
	$("#fileList tr").each(function(index){
		if($(this).hasClass("mouseOver")){
	        select = index - 1;
	        $(this).removeClass("mouseOver");
        }
	});
	
	if(select === -1){
		$("#fileList tr:last").addClass("mouseOver");
	}
	else{
		$("#fileList tr").each(function(index){
			if(index === select){
				$(this).addClass("mouseOver");
			}
		});
	}
}
function enter(){
	$("#fileList tr").each(function(index){
		if($(this).hasClass("mouseOver")){
	        $(this).removeClass("mouseOver");
	        $(this).find("span.nametext").trigger('click');
        }
	});
}
function del(){
	$("#fileList tr").each(function(index){
		if($(this).hasClass("mouseOver")){
	        $(this).removeClass("mouseOver");
	        $(this).find("a.action.delete").trigger('click');
        }
	});
}
function rename(){
	$("#fileList tr").each(function(index){
		if($(this).hasClass("mouseOver")){
			$(this).removeClass("mouseOver");
	        $(this).find("a[data-action='Rename']").trigger('click');
        }
	});
}

Files.bindKeyboardShortcuts = function (document, $) {
	$(document).keydown(function(event){//check for modifier keys
		var preventDefault = false;
		if($.inArray(event.keyCode, keys) === -1)
			keys.push(event.keyCode);
		
		if( 
			$.inArray(keyCodes.n, keys) !== -1
			&& ($.inArray(keyCodes.cmdFirefox, keys) !== -1
			|| $.inArray(keyCodes.cmdOpera, keys) !== -1
			|| $.inArray(keyCodes.leftCmdWebKit, keys) !== -1
			|| $.inArray(keyCodes.rightCmdWebKit, keys) !== -1
			|| $.inArray(keyCodes.ctrl, keys) !== -1)
		){
			preventDefault = true;//new file/folder prevent browser from responding
		}
		if(
			!$("#new").hasClass("active")
			&& $.inArray(keyCodes.r, keys) !== -1
			&& ($.inArray(keyCodes.cmdFirefox, keys) !== -1
			|| $.inArray(keyCodes.cmdOpera, keys) !== -1
			|| $.inArray(keyCodes.leftCmdWebKit, keys) !== -1
			|| $.inArray(keyCodes.rightCmdWebKit, keys) !== -1
			|| $.inArray(keyCodes.ctrl, keys) !== -1
			|| event.ctrlKey)
			&& $.inArray(keyCodes.shift, keys) !== -1
		){
			$("#fileList tr").each(function(index){//prevent default when renaming file/folder
				if($(this).hasClass("mouseOver")){
			        preventDefault = true;
		        }
			});
		}
		if(preventDefault){
			event.preventDefault(); //Prevent web browser from responding
			event.stopPropagation();
			return false;
		}
	});
	
	$(document).keyup(function(event){
       // do your event.keyCode checks in here
		if(
			$.inArray(keyCodes.n, keys) !== -1
			&& ($.inArray(keyCodes.cmdFirefox, keys) !== -1
			|| $.inArray(keyCodes.cmdOpera, keys) !== -1
			|| $.inArray(keyCodes.leftCmdWebKit, keys) !== -1
			|| $.inArray(keyCodes.rightCmdWebKit, keys) !== -1
			|| $.inArray(keyCodes.ctrl, keys) !== -1
			|| event.ctrlKey
		)){
			if($.inArray(keyCodes.shift, keys) !== -1
		){ //16=shift, New File
				newFile();
			}
			else{ //New Folder
				newFolder();
			}
		}
		
		else if($("#new").hasClass("active") && $.inArray(keyCodes.esc, keys) !== -1){ //close new window
			esc();
		}
		else if($.inArray(keyCodes.downArrow, keys) !== -1){ //select file
			down();
		}
		else if($.inArray(keyCodes.upArrow, keys) !== -1){ //select file
			up();
		}
		else if(!$("#new").hasClass("active") && $.inArray(keyCodes.enter, keys) !== -1){//open file
			enter();
		}
		else if(!$("#new").hasClass("active") && $.inArray(keyCodes.del, keys) !== -1) {//delete file
			del();
		}
		else if(
			!$("#new").hasClass("active")
			&& $.inArray(keyCodes.r, keys) !== -1
			&& ($.inArray(keyCodes.cmdFirefox, keys) !== -1
			|| $.inArray(keyCodes.cmdOpera, keys) !== -1
			|| $.inArray(keyCodes.leftCmdWebKit, keys) !== -1
			|| $.inArray(keyCodes.rightCmdWebKit, keys) !== -1
			|| $.inArray(keyCodes.ctrl, keys) !== -1
			|| event.ctrlKey)
			&& $.inArray(keyCodes.shift, keys) !== -1
		){//rename file
			rename();
		}
		
		removeA(keys, event.keyCode);
	});
};
})(Files);