yzms/show/js/qr.js

var isshowQR = true;


//读取二维码

function fromKeyCode(code) {
	if((code >= 48 && code <= 57) || (code >= 65 && code <= 90)) return String.fromCharCode(code);
	var keys = {186: ';', 188: ',', 189: '-', 190: '.', 191: '/', 222: "'", 219: '[', 221: ']', 187: '=',
	96:'Num 0', 97:'Num 1', 98:'Num 2', 99:'Num 3', 100:'Num 4', 101:'Num 5', 102:'Num 6', 103:'Num 7', 104:'Num 8', 105:'Num 9', 
	111:'Num /', 106:'Num *', 109:'Num -', 111:'Num /', 107:'Num +',13:'[enter]',8:'[back]',110:'Num .'
	//,45:'0', 35:'1', 40:'2', 34:'3', 37:'4', 12:'5', 39:'6', 36:'7', 38:'8', 33:'9'
	};
	if(keys[code]) return keys[code];
	return '*err*';
}
function hashCode(strKey)   
{   
	var hash = 0;   
	if(strKey != null && strKey != "")   
	{   
		for (var i = 0; i < strKey.length; i++)   
		{   
			hash = hash * 31 + strKey.charCodeAt(i);   
			hash = intValue(hash);
		}   
	}   
	return hash;   
}   
  
function intValue(num)   
{   
	var MAX_VALUE = 0x7fffffff;   
	var MIN_VALUE = -0x80000000;   
	if(num > MAX_VALUE || num < MIN_VALUE)   
	{   
		return num &= 0xFFFFFFFF;   
	}   
	return num;   
}  

document.onkeydown = function() {
	var code = event.keyCode; //alert(code+","+fromKeyCode(code));return;
	//[st]sduf87fjsdfysd78,526976123;
	if(code == 16) return ;
	
	dealKey('1', fromKeyCode(code));//document.getElementById("div1").innerHTML += fromKeyCode(code);
	//document.getElementById("div1").innerHTML += fromKeyCode(code)+"|";
}
var maxInputTime = 10;
var kb_status = {'1':'1','2':'1'};
var kb_readStr = {'1':'','2':''};
var kb_timeOut = {'1':'','2':''};
var last1time = 0;
var nowInput = false;
var inputCode = '';
var closeTime = 0;
var closeItv;
var nowInputFrom = '1';
var nowLaseInput = 0;
var lastCloseInput = 0;
var lastInput1 = 0;
var lastSucTime = 0;
var lastddh = '';
var lastdctype = '';

//[st]a7nd823sd,-235435454;


function dealKey(from, c) {

	if(from == '1') last1time = new Date().getTime();//alert(from);
	
	if(kb_status[from] == '1') { //开始
		if(c == '[') {
			kb_timeOut[from] = setTimeout("readErr('"+from+"', 1);", 2000);
			kb_status[from] = '2';
		}
		else readErr(from, 2);
	} else if(kb_status[from] == '2') { //读取s
		if(c == 'S') kb_status[from] = '3';
		else { 
			kb_status[from] = '1';
			readErr(from, 3);
		}
	} else if(kb_status[from] == '3') { //读取t
		if(c == 'T') kb_status[from] = '4';
		else { 
			kb_status[from] = '1';
			readErr(from, 4);
		}
	} else if(kb_status[from] == '4') { //读取]
		if(c == ']') {
			kb_status[from] = '5';
			kb_readStr[from] = '';
		} else { 
			kb_status[from] = '1';
			readErr(from, 5);
		}
	} else if(kb_status[from] == '5') { //读取内容
		if(c == ';') {
			try{clearTimeout(kb_timeOut[from]);} catch(e){}
			kb_status[from] = '1';
			var a = kb_readStr[from].split(",");
			if(a.length == 2) {
				var s1 = a[0].toLowerCase();
				var hcode = a[1];
				if(hashCode(s1) == hcode) {
					if(from == '1') {
						qrReadContent2(from, s1);
					} else {
						setTimeout(function() {
							if(new Date().getTime() - last1time > 1000) {
								qrReadContent2(from, s1);
							}
						}, 300);
					}
				} else {
					//alert(s1+","+hcode+","+hashCode(s1));
					readErr(from, 6);
				}
			} else {
				readErr(from, 7);
			}
			
			kb_readStr[from] = '';
		} else {
			if(c == '*err*') {
				kb_status[from] = '1';
				readErr(from, 8);
			} else {
				kb_readStr[from] += c;
			}
		}
	}
	//document.getElementById("div1").innerHTML += c+"|"+kb_status[from]+"$";
}
function readErr(from, rs) {
	kb_status[from] = '1';
	kb_readStr[from] = '';
	try{clearTimeout(kb_timeOut[from]);} catch(e){}
	//alert(from+":读取错误！"+rs);
}

function qrReadContent2(from, str) {
	//document.getElementById("div1").innerHTML += from+": "+str + '<br />';
	if(lastddh == str && new Date().getTime() - lastSucTime < 30000) return ;

	lastSucTime = new Date().getTime();
	//testdiv.innerHTML += str+"<br />";
	//addOrder(str)
	//alert(str);
	//document.getElementById("div1").innerHTML += str;
	qrReadContent(str);
}