Скрипт маски на Андроидах плохо работает

Скрипт маски на компьютере работает корректно и на айфонах работает корректно, но на Андроидах как нажимаешь на поле после +7 автоматически дописывается цифра 8 кто знает как пофиксить

//маска телефона в чате
$(document).ready(function() {
$("#shout_name").mask("+7(999)999-99-99");
$("#shout_name").attr("placeholder",'+7(999)999-99-99');
});

Код

//маска телефона в чате

    $(document).ready(function() {

    $("#shout_name").mask("+7(999)999-99-99");

    $("#shout_name").attr("placeholder",'+7(999)999-99-99');

});

Подключён jquery

(function($) {
function getPasteEvent() {
var el = document.createElement('input'),
name = 'onpaste';
el.setAttribute(name, '');
return (typeof el[name] === 'function')?'paste':'input';
}

var pasteEventName = getPasteEvent() + ".mask",
ua = navigator.userAgent,
iPhone = /iphone/i.test(ua),
android=/android/i.test(ua),
caretTimeoutId;

$.mask = {
//Predefined character definitions
definitions: {
'9': "[0-9]",
'a': "[A-Za-z]",
'*': "[A-Za-z0-9]"
},
dataName: "rawMaskFn",
placeholder: '_',
};

$.fn.extend({
//Helper Function for Caret positioning
caret: function(begin, end) {
var range;

if (this.length === 0 || this.is(":hidden")) {
return;
}

if (typeof begin == 'number') {
end = (typeof end === 'number') ? end : begin;
return this.each(function() {
if (this.setSelectionRange) {
this.setSelectionRange(begin, end);
} else if (this.createTextRange) {
range = this.createTextRange();
range.collapse(true);
range.moveEnd('character', end);
range.moveStart('character', begin);
range.select();
}
});
} else {
if (this[0].setSelectionRange) {
begin = this[0].selectionStart;
end = this[0].selectionEnd;
} else if (document.selection && document.selection.createRange) {
range = document.selection.createRange();
begin = 0 - range.duplicate().moveStart('character', -100000);
end = begin + range.text.length;
}
return { begin: begin, end: end };
}
},
unmask: function() {
return this.trigger("unmask");
},
mask: function(mask, settings) {
var input,
defs,
tests,
partialPosition,
firstNonMaskPos,
len;

if (!mask && this.length > 0) {
input = $(this[0]);
return input.data($.mask.dataName)();
}
settings = $.extend({
placeholder: $.mask.placeholder, // Load default placeholder
completed: null
}, settings);


defs = $.mask.definitions;
tests = [];
partialPosition = len = mask.length;
firstNonMaskPos = null;

$.each(mask.split(""), function(i, c) {
if (c == '?') {
len--;
partialPosition = i;
} else if (defs[c]) {
tests.push(new RegExp(defs[c]));
if (firstNonMaskPos === null) {
firstNonMaskPos = tests.length - 1;
}
} else {
tests.push(null);
}
});

return this.trigger("unmask").each(function() {
var input = $(this),
buffer = $.map(
mask.split(""),
function(c, i) {
if (c != '?') {
return defs[c] ? settings.placeholder : c;
}
}),
focusText = input.val();

function seekNext(pos) {
while (++pos < len && !tests[pos]);
return pos;
}

function seekPrev(pos) {
while (--pos >= 0 && !tests[pos]);
return pos;
}

function shiftL(begin,end) {
var i,
j;

if (begin<0) {
return;
}

for (i = begin, j = seekNext(end); i < len; i++) {
if (tests[i]) {
if (j < len && tests[i].test(buffer[j])) {
buffer[i] = buffer[j];
buffer[j] = settings.placeholder;
} else {
break;
}

j = seekNext(j);
}
}
writeBuffer();
input.caret(Math.max(firstNonMaskPos, begin));
}

function shiftR(pos) {
var i,
c,
j,
t;

for (i = pos, c = settings.placeholder; i < len; i++) {
if (tests[i]) {
j = seekNext(i);
t = buffer[i];
buffer[i] = c;
if (j < len && tests[j].test(t)) {
c = t;
} else {
break;
}
}
}
}

function keydownEvent(e) {
var k = e.which,
pos,
begin,
end;

//backspace, delete, and escape get special treatment
if (k === 8 || k === 46 || (iPhone && k === 127)) {
pos = input.caret();
begin = pos.begin;
end = pos.end;

if (end - begin === 0) {
begin=k!==46?seekPrev(begin):(end=seekNext(begin-1));
end=k===46?seekNext(end):end;
}
clearBuffer(begin, end);
shiftL(begin, end - 1);

e.preventDefault();
} else if (k == 27) {//escape
input.val(focusText);
input.caret(0, checkVal());
e.preventDefault();
}
}

function keypressEvent(e) {
var k = e.which,
pos = input.caret(),
p,
c,
next;

if (e.ctrlKey || e.altKey || e.metaKey || k < 32) {//Ignore
return;
} else if (k) {
if (pos.end - pos.begin !== 0){
clearBuffer(pos.begin, pos.end);
shiftL(pos.begin, pos.end-1);
}

p = seekNext(pos.begin - 1);
if (p < len) {
c = String.fromCharCode(k);
if (tests[p].test(c)) {
shiftR(p);

buffer[p] = c;
writeBuffer();
next = seekNext(p);

if(android){
setTimeout($.proxy($.fn.caret,input,next),0);
}else{
input.caret(next);
}

if (settings.completed && next >= len) {
settings.completed.call(input);
}
}
}
e.preventDefault();
}
}

function clearBuffer(start, end) {
var i;
for (i = start; i < end && i < len; i++) {
if (tests[i]) {
buffer[i] = settings.placeholder;
}
}
}

function writeBuffer() { input.val(buffer.join('')); }

function checkVal(allow) {
//try to place characters where they belong
var test = input.val(),
lastMatch = -1,
i,
c;

for (i = 0, pos = 0; i < len; i++) {
if (tests[i]) {
buffer[i] = settings.placeholder;
while (pos++ < test.length) {
c = test.charAt(pos - 1);
if (tests[i].test(c)) {
buffer[i] = c;
lastMatch = i;
break;
}
}
if (pos > test.length) {
break;
}
} else if (buffer[i] === test.charAt(pos) && i !== partialPosition) {
pos++;
lastMatch = i;
}
}
if (allow) {
writeBuffer();
} else if (lastMatch + 1 < partialPosition) {
input.val("");
clearBuffer(0, len);
} else {
writeBuffer();
input.val(input.val().substring(0, lastMatch + 1));
}
return (partialPosition ? i : firstNonMaskPos);
}

input.data($.mask.dataName,function(){
return $.map(buffer, function(c, i) {
return tests[i]&&c!=settings.placeholder ? c : null;
}).join('');
});

if (!input.attr("readonly"))
input
.one("unmask", function() {
input
.unbind(".mask")
.removeData($.mask.dataName);
})
.bind("focus.mask", function() {
clearTimeout(caretTimeoutId);
var pos,
moveCaret;

focusText = input.val();
pos = checkVal();

caretTimeoutId = setTimeout(function(){
writeBuffer();
if (pos == mask.length) {
input.caret(0, pos);
} else {
input.caret(pos);
}
}, 10);
})
.bind("blur.mask", function() {
checkVal();
if (input.val() != focusText)
input.change();
})
.bind("keydown.mask", keydownEvent)
.bind("keypress.mask", keypressEvent)
.bind(pasteEventName, function() {
setTimeout(function() {
var pos=checkVal(true);
input.caret(pos);
if (settings.completed && pos == input.val().length)
settings.completed.call(input);
}, 0);
});
checkVal(); //Perform initial check for existing values
});
}
});


})(jQuery);

Код

(function($) {

    function getPasteEvent() {

    var el = document.createElement('input'),

        name = 'onpaste';

    el.setAttribute(name, '');

    return (typeof el[name] === 'function')?'paste':'input';             

}



var pasteEventName = getPasteEvent() + ".mask",

    ua = navigator.userAgent,

    iPhone = /iphone/i.test(ua),

    android=/android/i.test(ua),

    caretTimeoutId;



$.mask = {

    //Predefined character definitions

    definitions: {

        '9': "[0-9]",

        'a': "[A-Za-z]",

        '*': "[A-Za-z0-9]"

    },

    dataName: "rawMaskFn",

    placeholder: '_',

};



$.fn.extend({

    //Helper Function for Caret positioning

    caret: function(begin, end) {

        var range;



        if (this.length === 0 || this.is(":hidden")) {

            return;

        }



        if (typeof begin == 'number') {

            end = (typeof end === 'number') ? end : begin;

            return this.each(function() {

                if (this.setSelectionRange) {

                    this.setSelectionRange(begin, end);

                } else if (this.createTextRange) {

                    range = this.createTextRange();

                    range.collapse(true);

                    range.moveEnd('character', end);

                    range.moveStart('character', begin);

                    range.select();

                }

            });

        } else {

            if (this[0].setSelectionRange) {

                begin = this[0].selectionStart;

                end = this[0].selectionEnd;

            } else if (document.selection && document.selection.createRange) {

                range = document.selection.createRange();

                begin = 0 - range.duplicate().moveStart('character', -100000);

                end = begin + range.text.length;

            }

            return { begin: begin, end: end };

        }

    },

    unmask: function() {

        return this.trigger("unmask");

    },

    mask: function(mask, settings) {

        var input,

            defs,

            tests,

            partialPosition,

            firstNonMaskPos,

            len;



        if (!mask && this.length > 0) {

            input = $(this[0]);

            return input.data($.mask.dataName)();

        }

        settings = $.extend({

            placeholder: $.mask.placeholder, // Load default placeholder

            completed: null

        }, settings);





        defs = $.mask.definitions;

        tests = [];

        partialPosition = len = mask.length;

        firstNonMaskPos = null;



        $.each(mask.split(""), function(i, c) {

            if (c == '?') {

                len--;

                partialPosition = i;

            } else if (defs[c]) {

                tests.push(new RegExp(defs[c]));

                if (firstNonMaskPos === null) {

                    firstNonMaskPos = tests.length - 1;

                }

            } else {

                tests.push(null);

            }

        });



        return this.trigger("unmask").each(function() {

            var input = $(this),

                buffer = $.map(

                mask.split(""),

                function(c, i) {

                    if (c != '?') {

                        return defs[c] ? settings.placeholder : c;

                    }

                }),

                focusText = input.val();



            function seekNext(pos) {

                while (++pos < len && !tests[pos]);

                return pos;

            }



            function seekPrev(pos) {

                while (--pos >= 0 && !tests[pos]);

                return pos;

            }



            function shiftL(begin,end) {

                var i,

                    j;



                if (begin<0) {

                    return;

                }



                for (i = begin, j = seekNext(end); i < len; i++) {

                    if (tests[i]) {

                        if (j < len && tests[i].test(buffer[j])) {

                            buffer[i] = buffer[j];

                            buffer[j] = settings.placeholder;

                        } else {

                            break;

                        }



                        j = seekNext(j);

                    }

                }

                writeBuffer();

                input.caret(Math.max(firstNonMaskPos, begin));

            }



            function shiftR(pos) {

                var i,

                    c,

                    j,

                    t;



                for (i = pos, c = settings.placeholder; i < len; i++) {

                    if (tests[i]) {

                        j = seekNext(i);

                        t = buffer[i];

                        buffer[i] = c;

                        if (j < len && tests[j].test(t)) {

                            c = t;

                        } else {

                            break;

                        }

                    }

                }

            }



            function keydownEvent(e) {

                var k = e.which,

                    pos,

                    begin,

                    end;



                //backspace, delete, and escape get special treatment

                if (k === 8 || k === 46 || (iPhone && k === 127)) {

                    pos = input.caret();

                    begin = pos.begin;

                    end = pos.end;



                    if (end - begin === 0) {

                        begin=k!==46?seekPrev(begin):(end=seekNext(begin-1));

                        end=k===46?seekNext(end):end;

                    }

                    clearBuffer(begin, end);

                    shiftL(begin, end - 1);



                    e.preventDefault();

                } else if (k == 27) {//escape

                    input.val(focusText);

                    input.caret(0, checkVal());

                    e.preventDefault();

                }

            }



            function keypressEvent(e) {

                var k = e.which,

                    pos = input.caret(),

                    p,

                    c,

                    next;



                if (e.ctrlKey || e.altKey || e.metaKey || k < 32) {//Ignore

                    return;

                } else if (k) {

                    if (pos.end - pos.begin !== 0){

                        clearBuffer(pos.begin, pos.end);

                        shiftL(pos.begin, pos.end-1);

                    }



                    p = seekNext(pos.begin - 1);

                    if (p < len) {

                        c = String.fromCharCode(k);

                        if (tests[p].test(c)) {

                            shiftR(p);



                            buffer[p] = c;

                            writeBuffer();

                            next = seekNext(p);



                            if(android){

                                setTimeout($.proxy($.fn.caret,input,next),0);

                            }else{

                                input.caret(next);

                            }



                            if (settings.completed && next >= len) {

                                settings.completed.call(input);

                            }

                        }

                    }

                    e.preventDefault();

                }

            }



            function clearBuffer(start, end) {

                var i;

                for (i = start; i < end && i < len; i++) {

                    if (tests[i]) {

                        buffer[i] = settings.placeholder;

                    }

                }

            }



            function writeBuffer() { input.val(buffer.join('')); }



            function checkVal(allow) {

                //try to place characters where they belong

                var test = input.val(),

                    lastMatch = -1,

                    i,

                    c;



                for (i = 0, pos = 0; i < len; i++) {

                    if (tests[i]) {

                        buffer[i] = settings.placeholder;

                        while (pos++ < test.length) {

                            c = test.charAt(pos - 1);

                            if (tests[i].test(c)) {

                                buffer[i] = c;

                                lastMatch = i;

                                break;

                            }

                        }

                        if (pos > test.length) {

                            break;

                        }

                    } else if (buffer[i] === test.charAt(pos) && i !== partialPosition) {

                        pos++;

                        lastMatch = i;

                    }

                }

                if (allow) {

                    writeBuffer();

                } else if (lastMatch + 1 < partialPosition) {

                    input.val("");

                    clearBuffer(0, len);

                } else {

                    writeBuffer();

                    input.val(input.val().substring(0, lastMatch + 1));

                }

                return (partialPosition ? i : firstNonMaskPos);

            }



            input.data($.mask.dataName,function(){

                return $.map(buffer, function(c, i) {

                    return tests[i]&&c!=settings.placeholder ? c : null;

                }).join('');

            });



            if (!input.attr("readonly"))

                input

                .one("unmask", function() {

                    input

                        .unbind(".mask")

                        .removeData($.mask.dataName);

                })

                .bind("focus.mask", function() {

                    clearTimeout(caretTimeoutId);

                    var pos,

                        moveCaret;



                    focusText = input.val();

                    pos = checkVal();

                    

                    caretTimeoutId = setTimeout(function(){

                        writeBuffer();

                        if (pos == mask.length) {

                            input.caret(0, pos);

                        } else {

                            input.caret(pos);

                        }

                    }, 10);

                })

                .bind("blur.mask", function() {

                    checkVal();

                    if (input.val() != focusText)

                        input.change();

                })

                .bind("keydown.mask", keydownEvent)

                .bind("keypress.mask", keypressEvent)

                .bind(pasteEventName, function() {

                    setTimeout(function() {

                        var pos=checkVal(true);

                        input.caret(pos);

                        if (settings.completed && pos == input.val().length)

                            settings.completed.call(input);

                    }, 0);

                });

            checkVal(); //Perform initial check for existing values

        });

    }

});





})(jQuery);