网页密码框小键盘成效

2012-11-22

网页密码框小键盘效果为了增加输入信息的安全性，有些时候我们在输入密码等信息时，需要启动小键盘输入，下

网页密码框小键盘效果

为了增加输入信息的安全性，有些时候我们在输入密码等信息时，需要启动小键盘输入，下面介绍一种在网页中添加小键盘输入的方法。

一个实现小键盘效果的JS文件keypad.js:

//定义当前是否大写的状态
var CapsLockValue=0;

var check;
function setVariables() {
tablewidth=630; // logo width, in pixels
tableheight=20; // logo height, in pixels
if (navigator.appName == "Netscape") {
horz=".left";
vert=".top";
docStyle="document.";
styleDoc="";
innerW="windows.innerWidth";
innerH="windows.innerHeight";
offsetX="window.pageXOffset";
offsetY="window.pageYOffset";
}
else {
horz=".pixelLeft";
vert=".pixelTop";
docStyle="";
styleDoc=".style";
innerW="document.body.clientWidth";
innerH="document.body.clientHeight";
offsetX="document.body.scrollLeft";
offsetY="document.body.scrollTop";
}
}
function checkLocation() {
if (check) {
objectXY="softkeyboard";
var availableX=eval_r(innerW);
var availableY=eval_r(innerH);
var currentX=eval_r(offsetX);
var currentY=eval_r(offsetY);
x=availableX-tablewidth+currentX;
//y=availableY-tableheight+currentY;
y=currentY;

evalMove();
}
setTimeout("checkLocation()",0);
}
function evalMove() {
//eval_r(docStyle + objectXY + styleDoc + horz + "=" + x);
eval_r(docStyle + objectXY + styleDoc + vert + "=" + y);
}

self.onError=null;
currentX = currentY = 0;
whichIt = null;
lastScrollX = 0; lastScrollY = 0;
NS = (document.layers) ? 1 : 0;
IE = (document.all) ? 1: 0;
function heartBeat() {
if(IE) { diffY = document.body.scrollTop; diffX = document.body.scrollLeft; }
if(NS) { diffY = self.pageYOffset; diffX = self.pageXOffset; }
if(diffY != lastScrollY) {
percent = .1 * (diffY - lastScrollY);
if(percent > 0) percent = Math.ceil(percent);
else percent = Math.floor(percent);
if(IE) document.all.softkeyboard.style.pixelTop += percent;
if(NS) document.softkeyboard.top += percent;
lastScrollY = lastScrollY + percent;}
if(diffX != lastScrollX) {
percent = .1 * (diffX - lastScrollX);
if(percent > 0) percent = Math.ceil(percent);
else percent = Math.floor(percent);
if(IE) document.all.softkeyboard.style.pixelLeft += percent;
if(NS) document.softkeyboard.left += percent;
lastScrollX = lastScrollX + percent; } }
function checkFocus(x,y) {
stalkerx = document.softkeyboard.pageX;
stalkery = document.softkeyboard.pageY;
stalkerwidth = document.softkeyboard.clip.width;
stalkerheight = document.softkeyboard.clip.height;
if( (x > stalkerx && x < (stalkerx+stalkerwidth)) && (y > stalkery && y < (stalkery+stalkerheight))) return true;
else return false;}
function grabIt(e) {
check = false;
if(IE) {
whichIt = event.srcElement;
while (whichIt.id.indexOf("softkeyboard") == -1) {
whichIt = whichIt.parentElement;
if (whichIt == null) { return true; } }
whichIt.style.pixelLeft = whichIt.offsetLeft;
whichIt.style.pixelTop = whichIt.offsetTop;
currentX = (event.clientX + document.body.scrollLeft);
currentY = (event.clientY + document.body.scrollTop);
} else {
window.captureEvents(Event.MOUSEMOVE);
if(checkFocus (e.pageX,e.pageY)) {
whichIt = document.softkeyboard;
StalkerTouchedX = e.pageX-document.softkeyboard.pageX;
StalkerTouchedY = e.pageY-document.softkeyboard.pageY;} }
return true; }
function moveIt(e) {
if (whichIt == null) { return false; }
if(IE) {
newX = (event.clientX + document.body.scrollLeft);
newY = (event.clientY + document.body.scrollTop);
distanceX = (newX - currentX); distanceY = (newY - currentY);
currentX = newX; currentY = newY;
whichIt.style.pixelLeft += distanceX;
whichIt.style.pixelTop += distanceY;
if(whichIt.style.pixelTop < document.body.scrollTop) whichIt.style.pixelTop = document.body.scrollTop;
if(whichIt.style.pixelLeft < document.body.scrollLeft) whichIt.style.pixelLeft = document.body.scrollLeft;
if(whichIt.style.pixelLeft > document.body.offsetWidth - document.body.scrollLeft - whichIt.style.pixelWidth - 20) whichIt.style.pixelLeft = document.body.offsetWidth - whichIt.style.pixelWidth - 20;
if(whichIt.style.pixelTop > document.body.offsetHeight + document.body.scrollTop - whichIt.style.pixelHeight - 5) whichIt.style.pixelTop = document.body.offsetHeight + document.body.scrollTop - whichIt.style.pixelHeight - 5;
event.returnValue = false;
} else {
whichIt.moveTo(e.pageX-StalkerTouchedX,e.pageY-StalkerTouchedY);
if(whichIt.left < 0+self.pageXOffset) whichIt.left = 0+self.pageXOffset;
if(whichIt.top < 0+self.pageYOffset) whichIt.top = 0+self.pageYOffset;
if( (whichIt.left + whichIt.clip.width) >= (windows.innerWidth+self.pageXOffset-17)) whichIt.left = ((windows.innerWidth+self.pageXOffset)-whichIt.clip.width)-17;
if( (whichIt.top + whichIt.clip.height) >= (windows.innerHeight+self.pageYOffset-17)) whichIt.top = ((windows.innerHeight+self.pageYOffset)-whichIt.clip.height)-17;
return false;}
return false; }
function dropIt() {whichIt = null;
if(NS) window.releaseEvents (Event.MOUSEMOVE);
return true; }
if(NS) {window.captureEvents(Event.MOUSEUP|Event.MOUSEDOWN);
window.onmousedown = grabIt;
window.onmousemove = moveIt;
window.onmouseup = dropIt; }
if(IE) {
document.onmousedown = grabIt;
document.onmousemove = moveIt;
document.onmouseup = dropIt; }
if(NS || IE) action = window.setInterval("heartBeat()",1);

document.write (' <DIV align=center id="softkeyboard" name="softkeyboard" style="position:absolute; left:220px; top:20px; width:514px; z-index:180;display:none">');
document.write (' <table width="348" border="0" align="center" cellpadding="3" cellspacing="1" bgcolor="#FF3300">');
document.write (' <FORM name=Calc action="" method=post autocomplete="off">');
document.write (' <INPUT type=hidden value=ok name=action2>');
document.write (' <tr> ');
document.write (' <td align="left" bgcolor="#FF3300" align="center"> <INPUT class=td1b type=password size=18 value="" name=password> ');
document.write (' <INPUT class=button type=button value=输入完毕 name="Submit3" onclick="OverInput(curEditName);"> <INPUT class=button type=reset value=输错重来 name="Submit23"> ');
document.write (' <input class=button type=button value=" × " name="Submit222" onclick="closekeyboard(curEditName);"> </td>');
document.write (' </tr>');
document.write (' <tr> ');
document.write (' <td align="center" bgcolor="#FFFFFF" align="center"> <table align="center" width="98%" border="0" cellspacing="0" cellpadding="0">');
document.write (' <tr align="left" valign="middle"> ');
document.write (' <td> ');
document.write (' <input type=button onclick="addValue(\'1\');" value=" 1 "></td>');
document.write (' <td> ');
document.write (' <input type=button onclick="addValue(\'2\');" value=" 2 "></td>');
document.write (' <td> ');
document.write (' <input type=button onclick="addValue(\'3\');" value=" 3 "></td>');
document.write (' <td> ');
document.write (' <input type=button onclick="addValue(\'4\');" value=" 4 "></td>');
document.write (' <td> ');
document.write (' <input type=button onclick="addValue(\'5\');" value=" 5 "></td>');
document.write (' <td> ');
document.write (' <input type=button onclick="addValue(\'6\');" value=" 6 "></td>');
document.write (' <td> ');
document.write (' <input type=button onclick="addValue(\'7\');" value=" 7 "></td>');
document.write (' <td> ');
document.write (' <input type=button onclick="addValue(\'8\');" value=" 8 "></td>');
document.write (' <td> ');
document.write (' <input type=button onclick="addValue(\'9\');" value=" 9 "></td>');
document.write (' <td> ');
document.write (' <input type=button onclick="addValue(\'0\');" value=" 0 "></td>');
document.write (' <td> ');
document.write (' <input type=button onclick="addValue(\'-\');" value=" - "></td>');
document.write (' <td><input name="button10" type=button value="退格" onclick="setpassvalue();"> ');
document.write (' </td>');
document.write (' <td> </td>');
document.write (' </tr>');
document.write (' <tr align="left" valign="middle"> ');
document.write (' <td> ');
document.write (' <input type=button onclick="addValue(\'q\');" value=" q "></td>');
document.write (' <td> ');
document.write (' <input type=button onclick="addValue(\'w\');" value=" w "></td>');
document.write (' <td> ');
document.write (' <input type=button onclick="addValue(\'e\');" value=" e "></td>');
document.write (' <td> ');
document.write (' <input type=button onclick="addValue(\'r\');" value=" r "></td>');
document.write (' <td> ');
document.write (' <input type=button onclick="addValue(\'t\');" value=" t "></td>');
document.write (' <td> ');
document.write (' <input type=button onclick="addValue(\'y\');" value=" y "></td>');
document.write (' <td> ');
document.write (' <input type=button onclick="addValue(\'u\');" value=" u "></td>');
document.write (' <td> ');
document.write (' <input type=button onclick="addValue(\'i\');" value=" i "></td>');
document.write (' <td> ');
document.write (' <input type=button onclick="addValue(\'o\');" value=" o "></td>');
document.write (' <td> ');
document.write (' <input type=button onclick="addValue(\'p\');" value=" p "></td>');
document.write (' <td> ');
document.write (' <input name="button6" type=button onClick="addValue(\':\');" value=" : "></td>');
document.write (' <td><input name="button12" type=button onclick="OverInput(curEditName);" value="回车"> ');
document.write (' </td>');
document.write (' <td> ');
document.write (' </td>');
document.write (' </tr>');
document.write (' <tr align="left" valign="middle"> ');
document.write (' <td> ');
document.write (' <input type=button onclick="addValue(\'a\');" value=" a "></td>');
document.write (' <td> ');
document.write (' <input type=button onclick="addValue(\'s\');" value=" s "></td>');
document.write (' <td> ');
document.write (' <input type=button onclick="addValue(\'d\');" value=" d "></td>');
document.write (' <td> ');
document.write (' <input type=button onclick="addValue(\'f\');" value=" f "></td>');
document.write (' <td> ');
document.write (' <input type=button onclick="addValue(\'g\');" value=" g "></td>');
document.write (' <td> ');
document.write (' <input type=button onclick="addValue(\'h\');" value=" h "></td>');
document.write (' <td> ');
document.write (' <input type=button onclick="addValue(\'j\');" value=" j "></td>');
document.write (' <td> ');
document.write (' <input type=button onclick="addValue(\'k\');" value=" k "></td>');
document.write (' <td> ');
document.write (' <input type=button onclick="addValue(\'l\');" value=" l "></td>');
document.write (' <td> ');
document.write (' <input name="button8" type=button onClick="addValue(\'[\');" value=" [ "></td>');
document.write (' <td> ');
document.write (' <input name="button9" type=button onClick="addValue(\']\');" value=" ] "></td>');
document.write (' <td colspan="2"><input name="button9" type=button onClick="setCapsLock();" value="切换"></td>');
document.write (' </tr>');
document.write (' <tr align="left" valign="middle"> ');
document.write (' <td> ');
document.write (' <input type=button onclick="addValue(\'z\');" value=" z "></td>');
document.write (' <td> ');
document.write (' <input type=button onclick="addValue(\'x\');" value=" x "></td>');
document.write (' <td> ');
document.write (' <input type=button onclick="addValue(\'c\');" value=" c "></td>');
document.write (' <td> ');
document.write (' <input type=button onclick="addValue(\'v\');" value=" v "></td>');
document.write (' <td> ');
document.write (' <input type=button onclick="addValue(\'b\');" value=" b "></td>');
document.write (' <td> ');
document.write (' <input type=button onclick="addValue(\'n\');" value=" n "></td>');
document.write (' <td> ');
document.write (' <input type=button onclick="addValue(\'m\');" value=" m "></td>');
document.write (' <td> ');
document.write (' <input name="button3" type=button onClick="addValue(\'<\');" value=" < "></td>');
document.write (' <td> ');
document.write (' <input name="button4" type=button onClick="addValue(\'>\');" value=" > "></td>');
document.write (' <td> ');
document.write (' <input name="button5" type=button onClick="addValue(\'(\');" value=" ( "></td>');
document.write (' <td> ');
document.write (' <input name="button7" type=button onClick="addValue(\')\');" value=" ) "></td>');
document.write (' <td colspan="2"> ');
document.write (' <input name="showCapsLockValue" type=reset value="小写"></td>');
document.write (' </tr>');
document.write (' <tr align="left" valign="middle"> ');
document.write (' <td> ');
document.write (' <input name="button2" type=button onClick="addValue(\',\');" value=" , "></td>');
document.write (' <td> ');
document.write (' <input type=button onclick="addValue(\'~\');" value=" ~ "></td>');
document.write (' <td> ');
document.write (' <input type=button onclick="addValue(\'!\');" value=" ! "></td>');
document.write (' <td> ');
document.write (' <input type=button onclick="addValue(\'@\');" value=" @ "></td>');
document.write (' <td> ');
document.write (' <input type=button onclick="addValue(\'#\');" value=" # "></td>');
document.write (' <td> ');
document.write (' <input type=button onclick="addValue(\'$\');" value=" $ "></td>');
document.write (' <td> ');
document.write (' <input type=button onclick="addValue(\'%\');" value=" % "></td>');
document.write (' <td> ');
document.write (' <input type=button onclick="addValue(\'^\');" value=" ^ "></td>');
document.write (' <td> ');
document.write (' <input type=button onclick="addValue(\'*\');" value=" * "></td>');
document.write (' <td> ');
document.write (' <input type=button onclick="addValue(\'|\');" value=" | "></td>');
document.write (' <td> ');
document.write (' <input type=button onclick="addValue(\'?\');" value=" ? "></td>');
document.write (' <td colspan="2"><input name="button" type=button onClick="addValue(\'=\');" value=" ＝ "></td>');
document.write (' </tr>');
document.write (' </table></td>');
document.write (' </tr>');
document.write (' </FORM>');
document.write (' </table>');
document.write ('</DIV>');

//给输入的密码框添加新值
function addValue(newValue)
{
if (CapsLockValue==0)
{
Calc.password.value += newValue;
}
else
{
Calc.password.value += newValue.toUpperCase();
}
}
//实现BackSpace键的功能
function setpassvalue()
{
var longnum=Calc.password.value.length;
var num
num=Calc.password.value.substr(0,longnum-1);
Calc.password.value=num;
}
//输入完毕
function OverInput(theForm)
{
eval_r("var theForm="+theForm+";");
//m_pass.mempass.value=Calc.password.value;
theForm.value=Calc.password.value;
//alert(theForm.value);
//theForm.value=m_pass.mempass.value;
softkeyboard.style.display="none";
Calc.password.value="";
}
//关闭软键盘
function closekeyboard(theForm)
{
//eval_r("var theForm="+theForm+";");
//theForm.value="";
softkeyboard.style.display="none";
//Calc.password.value="";

}
//显示软键盘
function showkeyboard()
{
softkeyboard.style.display="block";
}

//设置是否大写的值
function setCapsLock()
{
if (CapsLockValue==0)
{
CapsLockValue=1
Calc.showCapsLockValue.value="大写";
}
else
{
CapsLockValue=0
Calc.showCapsLockValue.value="小写";
}
}

测试页面test.html:

<HTML>
?<HEAD>
<script type="text/javascript" language="javascript"
???src="keypad.js"></script>
<script>
//定义当前需用软键盘的表单和控件的名称
var curEditName
curEditName="form1.Password"
</script>
</HEAD>
<body>

</tr>
</table>
</form>
</BODY>
</HTML>

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