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behrad/FarsiType

Created July 2, 2013 15:48
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FarsiType Javascript Plugin
Raw
FarsiType
/*
FarsiType
Version: 1.3.6
http://www.farsitype.ir
This script developed to ease typing Farsi (Persian) in web forms where there is no Farsi Keyboard installed on a PC.
Works with Internet Explorer, FireFox, Opera and Chrome.
For more information and getting the using manual please visit the script website (http://www.farsitype.ir).
Copyright 2002-2011 Kaveh Ahmadi (http://www.kavehahmadi.com, email: me@kavehahmadi.com).
Licensed under the GPL (http://www.opensource.org/licenses/gpl-license.php) license.
*/
// insertAdjacentHTML(), insertAdjacentText() and insertAdjacentElement() for Netscape 6/Mozilla by Thor Larholm me@jscript.dk
if (typeof HTMLElement!="undefined" && ! HTMLElement.prototype.insertAdjacentElement) {
HTMLElement.prototype.insertAdjacentElement = function (where,parsedNode) {
switch (where) {
case 'beforeBegin':
this.parentNode.insertBefore(parsedNode,this)
break;
case 'afterBegin':
this.insertBefore(parsedNode,this.firstChild);
break;
case 'beforeEnd':
this.appendChild(parsedNode);
break;
case 'afterEnd':
if (this.nextSibling)
this.parentNode.insertBefore(parsedNode,this.nextSibling);
else
this.parentNode.appendChild(parsedNode);
break;
}
}
HTMLElement.prototype.insertAdjacentHTML = function (where,htmlStr) {
var r = this.ownerDocument.createRange();
r.setStartBefore(this);
var parsedHTML = r.createContextualFragment(htmlStr);
this.insertAdjacentElement(where,parsedHTML)
}
HTMLElement.prototype.insertAdjacentText = function (where,txtStr) {
var parsedText = document.createTextNode(txtStr)
this.insertAdjacentElement(where,parsedText)
}
}
var FarsiType = {
// Farsi keyboard map based on Iran Popular Keyboard Layout
farsiKey: [
32, 33, 34, 35, 36, 37, 1548, 1711,
41, 40, 215, 43, 1608, 45, 46, 47,
48, 49, 50, 51, 52, 53, 54, 55,
56, 57, 58, 1705, 44, 61, 46, 1567,
64, 1616, 1584, 125, 1609, 1615, 1609, 1604,
1570, 247, 1600, 1548, 47, 8217, 1583, 215,
1563, 1614, 1569, 1613, 1601, 8216, 123, 1611,
1618, 1573, 126, 1580, 1688, 1670, 94, 95,
1662, 1588, 1584, 1586, 1740, 1579, 1576, 1604,
1575, 1607, 1578, 1606, 1605, 1574, 1583, 1582,
1581, 1590, 1602, 1587, 1601, 1593, 1585, 1589,
1591, 1594, 1592, 60, 124, 62, 1617
],
Type: true,
counter: 0,
ShowChangeLangButton: 1, // 0: Hidden / 1: Visible
KeyBoardError: 0, // 0: Disable FarsiType / 1: Show Error
ChangeDir: 2, // 0: No Action / 1: Do Rtl-Ltr / 2: Rtl-Ltr button
UnSupportedAction: 0 //0: Disable FarsiType / 1: Low Support
}
FarsiType.enable_disable = function(Dis) {
var invis, obj;
if (!Dis.checked) {
FarsiType.Type = true;
disable = false;
color = 'darkblue';
} else {
FarsiType.Type = false;
disable = true;
color = '#ECE9D8';
}
if (FarsiType.ShowChangeLangButton == 1) {
for (var i=1; i<= FarsiType.counter; i++) {
obj = document.getElementById('FarsiType_button_' + i);
obj.disabled = disable;
obj.style.backgroundColor = color;
}
}
}
FarsiType.Disable = function() {
FarsiType.Type = false;
var Dis = document.getElementById('disableFarsiType')
if (Dis != null) {
Dis.checked = true;
}
if (FarsiType.ShowChangeLangButton == 1) {
for (var i=1; i<= FarsiType.counter; i++) {
obj = document.getElementById('FarsiType_button_' + i);
obj.disabled = true;
obj.style.backgroundColor = '#ECE9D8';
}
}
}
FarsiType.init = function() {
var Inputs = document.getElementsByTagName('INPUT');
for (var i=0; i<Inputs.length; i++) {
if (Inputs[i].type.toLowerCase() == 'text' && (Inputs[i].lang.toLowerCase() == 'fa' || Inputs[i].lang.toLowerCase() == 'fa-ir')) {
FarsiType.counter++;
new FarsiType.KeyObject(Inputs[i], FarsiType.counter);
}
}
var Areas = document.getElementsByTagName('TEXTAREA');
for (var i=0; i<Areas.length; i++) {
if (Areas[i].lang.toLowerCase() == 'fa' || Areas[i].lang.toLowerCase() == 'fa-ir') {
FarsiType.counter++;
new FarsiType.KeyObject(Areas[i], FarsiType.counter);
}
}
var Dis = document.getElementById('disableFarsiType')
if (Dis != null) {
FarsiType.enable_disable (Dis);
Dis.onclick = new Function( "FarsiType.enable_disable (this);" )
}
}
FarsiType.KeyObject = function(z,x) {
GenerateStr = "";
if (FarsiType.ShowChangeLangButton == 1) {
GenerateStr = GenerateStr + "<input type='button' id=FarsiType_button_"+x+" style='border: none; background-color:darkblue; font-size:11; color:white; font-family:tahoma; padding: 1px; margin: 1px; width: auto; height: auto;' value='FA' />&nbsp;";
}
if (FarsiType.ChangeDir == 2) {
GenerateStr = GenerateStr + "<input type='button' id=FarsiType_ChangeDir_"+x+" style='border: none; background-color:darkblue; font-size:11; color:white; font-family:tahoma; padding: 1px; margin: 1px; width: auto; height: auto;' value='RTL' />"
}
z.insertAdjacentHTML("afterEnd", GenerateStr);
if (FarsiType.ShowChangeLangButton == 1) {
z.bottelm = document.getElementById ('FarsiType_button_' + x);
z.bottelm.title = 'Change lang to english';
}
if (FarsiType.ChangeDir == 2) {
z.Direlm = document.getElementById ('FarsiType_ChangeDir_' + x);
}
z.farsi = true;
z.dir = "rtl";
z.align = "right";
z.style.textAlign = z.align;
z.style.direction = z.dir;
setSelectionRange = function(input, selectionStart, selectionEnd) {
input.focus()
input.setSelectionRange(selectionStart, selectionEnd)
}
ChangeDirection = function() {
if (z.dir == "rtl") {
z.dir = "ltr";
z.align = "left";
z.Direlm.value = "LTR";
z.Direlm.title = "Change direction: Right to Left"
} else {
z.dir = "rtl";
z.align = "right";
z.Direlm.value = "RTL";
z.Direlm.title = "Change direction: Left to Right"
}
z.style.textAlign = z.align;
z.style.direction = z.dir;
z.focus();
}
ChangeLang = function(e, ze) {
if(ze)
z = ze;
if (FarsiType.Type) {
if (z.farsi) {
z.farsi = false;
if (FarsiType.ShowChangeLangButton == 1) {
z.bottelm.value = "EN";
z.bottelm.title = 'Change lang to persian';
}
if (FarsiType.ChangeDir == 1) {
z.style.textAlign = "left";
z.style.direction = "ltr";
}
} else {
z.farsi = true;
if (FarsiType.ShowChangeLangButton == 1) {
z.bottelm.value = "FA";
z.bottelm.title = 'Change lang to english';
}
if (FarsiType.ChangeDir == 1) {
z.style.textAlign = "right";
z.style.direction = "rtl";
}
}
z.focus();
}
if (e.preventDefault) e.preventDefault();
e.returnValue = false;
return false;
}
Convert = function(e) {
if (e == null)
e = window.event;
var key = e.which || e.charCode || e.keyCode;
var eElement = e.target || e.originalTarget || e.srcElement;
if (e.ctrlKey && key == 32) {
ChangeLang(e, z);
}
if (FarsiType.Type) {
if (
(e.charCode != null && e.charCode != key) ||
(e.which != null && e.which != key) ||
(e.ctrlKey || e.altKey || e.metaKey) ||
(key == 13 || key == 27 || key == 8)
) return true;
//check windows lang
if (key > 128) {
if (FarsiType.KeyBoardError == 0) {
FarsiType.Disable();
} else {
alert("Please change your windows language to English");
return false;
}
}
// If Farsi
if (FarsiType.Type && z.farsi) {
//check CpasLock
if ((key >= 65 && key <= 90&& !e.shiftKey) || (key >= 97 && key <= 122 ) && e.shiftKey) {
alert("Caps Lock is On. To prevent entering farsi incorrectly, you should press Caps Lock to turn it off.");
return false;
}
// Shift-space -> ZWNJ
if (key == 32 && e.shiftKey)
key = 8204;
else
key = FarsiType.farsiKey[key-32];
key = typeof key == 'string' ? key : String.fromCharCode(key);
// to farsi
try {
var docSelection = document.selection;
var selectionStart = eElement.selectionStart;
var selectionEnd = eElement.selectionEnd;
if (typeof selectionStart == 'number') {
//FOR W3C STANDARD BROWSERS
var nScrollTop = eElement.scrollTop;
var nScrollLeft = eElement.scrollLeft;
var nScrollWidth = eElement.scrollWidth;
eElement.value = eElement.value.substring(0, selectionStart) + key + eElement.value.substring(selectionEnd);
setSelectionRange(eElement, selectionStart + key.length, selectionStart + key.length);
var nW = eElement.scrollWidth - nScrollWidth;
if (eElement.scrollTop == 0) { eElement.scrollTop = nScrollTop }
} else if (docSelection) {
var nRange = docSelection.createRange();
nRange.text = key;
nRange.setEndPoint('StartToEnd', nRange);
nRange.select();
}
} catch(error) {
try {
// IE
e.keyCode = key
} catch(error) {
try {
// OLD GECKO
e.initKeyEvent("keypress", true, true, document.defaultView, false, false, true, false, 0, key, eElement);
} catch(error) {
//OTHERWISE
if (FarsiType.UnSupportedAction == 0) {
alert('Sorry! no FarsiType support')
FarsiType.Disable();
var Dis = document.getElementById('disableFarsiType')
if (Dis != null) {
Dis.disabled = true;
}
return false;
} else {
eElement.value += key;
}
}
}
}
if (e.preventDefault)
e.preventDefault();
e.returnValue = false;
}
}
return true;
}
if (FarsiType.ShowChangeLangButton == 1) { z.bottelm.onmouseup = ChangeLang; }
if (FarsiType.ChangeDir == 2) { z.Direlm.onmouseup = ChangeDirection; }
z.onkeypress = Convert;
}
if (window.attachEvent) {
window.attachEvent('onload', FarsiType.init)
} else if (window.addEventListener) {
window.addEventListener('load', FarsiType.init, false)
}
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