void Native_AfterTextChanged (object sender, global::Android.Text.AfterTextChangedEventArgs e)
{
if (pt != null && source.FormatCharacters != null)
{
var temp = pt;
pt = null;
native.Text = temp.Text;
if (temp.Start != -1) {
if (temp.End != -1) {
native.SetSelection (temp.Start, temp.End);
}
else {
if (temp.Start >= native.Text.Length) {
temp.Start = native.Text.Length;
}
else
{
var before = source.BeforeChars;
if (before == "")
{
temp.Start = 1;
}
else
{
var text = native.Text;
for (int i = 0; i < text.Length; i++)
{
string c = text[i].ToString();
if (source.FormatCharacters.Where(ch => ch.ToString() == c.ToString()).Count() <= 0)
{
// no placeholder1
if (before[0].ToString() == c)
{
before = before.Substring(1);
}
if (String.IsNullOrEmpty(before))
{
temp.Start = i+1;
break;
}
}
}
}
}
native.SetSelection(temp.Start);
}
}
pt = null;
source.Locked = false;
}
}
public MyEntry()
{
this.TextChanged += (object sender, TextChangedEventArgs e) =>
{
if (this.Mask != null)
{
if (this.Locked == false && (this.LastText != this.Text) && String.IsNullOrEmpty(this.Text) == false)
{
this.Locked = true;
if (this.FormatCharacters == null) {
this.Locked = false;
return;
}
var chars = this.FormatCharacters.ToCharArray ();
Int32 adjustedStart = 0;
this.Locked = true;
var start = this.SelectionStart;
var text = this.Text.Replace(chars, "");
var len = text.Length;
var middle = false;
if (Delete && start > 0)
{
adjustedStart = adjustedStart - 1;
BeforeChars = this.Text.Substring(0, start - 1).Replace(chars, "");
}
else
{
if (start != this.Text.Length - 1)
{
middle = true;
if (start > this.Text.Length -1)
{
start = this.Text.Length;
BeforeChars = this.Text;
}
else
{
BeforeChars = this.Text.Substring(0, start + 1).Replace(chars, "");
}
}
}
// check MaxLength for Mask
if (this.MaxLengthFromMask <= 0)
{
// check length of last Mask and set MaxLength of not set already
// this will set a MaxLength value to stop the mask
this.MaxLengthFromMask = this.Mask.Last ().End;
}
var finalText = "";
var rule = this.Mask.FirstOrDefault(r => r.End >= len);
if (rule == null)
{
// no rules found. get last rule
rule = this.Mask.Last();
}
if (rule.Mask != "")
{
var temp = ApplyMask(text, rule);
if (!Delete)
{
if (middle)
{
adjustedStart = 1;
}
else
{
if (temp.Length > e.OldTextValue.Length)
{
adjustedStart = temp.Length - e.OldTextValue.Length;
}
else
{
adjustedStart = 0;
start = temp.Length;
}
}
}
finalText = temp;
//var next = temp[start + adjustedStart-1];
this.LastText = temp;
}
else if (rule.Mask == "" && this.Delete)
{
finalText = text;
this.LastText = text;
}
else
{
if (e.NewTextValue.Length > e.OldTextValue.Length)
{
adjustedStart++;
}
else
{
adjustedStart--;
}
finalText = this.Text.Replace (chars, "");
}
this.RawText = this.Text.Replace (chars, "");
var pt = new SelectionPoint(start + adjustedStart);
pt.Text = finalText;
SetSelection = pt;
}
}
};
}
protected override void OnElementPropertyChanged (object sender, System.ComponentModel.PropertyChangedEventArgs e)
{
base.OnElementPropertyChanged (sender, e);
if (e.PropertyName == "SetSelection") {
pt = source.SetSelection;
}
}
protected override void OnElementPropertyChanged (object sender, System.ComponentModel.PropertyChangedEventArgs e)
{
base.OnElementPropertyChanged (sender, e);
if (e.PropertyName == "SetSelection") {
pt = source.SetSelection;
if (pt != null && source.FormatCharacters != null) {
var temp = pt;
pt = null;
native.Text = temp.Text;
if (temp.Start != -1) {
if (temp.End != -1) {
var positionToSet = native.GetPosition (native.BeginningOfDocument, temp.Start);
native.SelectedTextRange = native.GetTextRange (positionToSet, positionToSet);
} else {
if (temp.Start >= native.Text.Length) {
temp.Start = native.Text.Length;
} else {
var before = source.BeforeChars;
if (before == "") {
temp.Start = 1;
} else {
var text = native.Text;
for (int i = 0; i < text.Length; i++)
{
string c = text[i].ToString();
if (source.FormatCharacters.Where(ch => ch.ToString() == c.ToString()).Count() <= 0)
{
// no placeholder1
if (before[0].ToString() == c)
{
before = before.Substring(1);
}
if (String.IsNullOrEmpty(before))
{
temp.Start = i+1;
break;
}
}
}
}
}
var positionToSet = native.GetPosition (native.BeginningOfDocument, temp.Start);
native.SelectedTextRange = native.GetTextRange (positionToSet, positionToSet);
}
}
}
source.Locked = false;
} else if (e.PropertyName == "FormatCharacters") {
this.FormatCharacters = source.FormatCharacters.ToCharArray ();
}
}
protected override void OnElementChanged(ElementChangedEventArgs<Entry> e)
{
base.OnElementChanged (e);
if (native == null) {
source = e.NewElement as MyEntry;
native = this.Control as EntryEditText;
// INIT defaults
rules = source.Mask;
FormatCharacters = source.FormatCharacters.ToCharArray ();
if (FormatCharacters != null && String.IsNullOrEmpty(source.Text) == false) {
ApplyDefaultRule ();
}
native.AfterTextChanged += (object sender, global::Android.Text.AfterTextChangedEventArgs e2) => {
if (pt != null && FormatCharacters != null)
{
if (pt.Start != -1) {
if (pt.End != -1) {
native.SetSelection (pt.Start, pt.End);
}
else {
if (pt.Start >= native.Text.Length) {
pt.Start = native.Text.Length;
}
else
{
var before = source.BeforeChars;
if (before == "")
{
pt.Start = 1;
}
else
{
var text = native.Text;
for (int i = 0; i < text.Length; i++)
{
string c = text[i].ToString();
if (FormatCharacters.Where(ch => ch.ToString() == c.ToString()).Count() <= 0)
{
// no placeholder1
if (before[0].ToString() == c)
{
before = before.Substring(1);
}
if (String.IsNullOrEmpty(before))
{
pt.Start = i+1;
break;
}
}
}
}
}
native.SetSelection(pt.Start);
}
}
pt = null;
}
};
native.KeyPress += (object sender, KeyEventArgs args) => {
if (args.Event.Action == global::Android.Views.KeyEventActions.Down )
{
var len = native.Text.Length;
if (args.KeyCode == global::Android.Views.Keycode.Back ||
args.KeyCode == global::Android.Views.Keycode.Del)
{
// do test cleanup
if (source.Locked == false && source.Mask != null)
{
source.Delete = true;
args.Handled = false;
}
else if(source.MaxLength > 0)
{
args.Handled = false;
}
else
{
args.Handled = false;
}
}
else if (source.Locked == false && source.Mask != null)
{
source.Delete = false;
var start = native.SelectionStart;
if (start < len)
{
var evt = args.Event;
var act = evt.Action;
var newChar = ((char)evt.UnicodeChar).ToString();
//var newChar = ((char)args.KeyCode.ConvertToString()).ToString();
native.Text = native.Text.Insert(start, newChar);
args.Handled = true;
}
else
{
args.Handled = false;
}
}
else if(source.MaxLength > 0)
{
if (len+1 > source.MaxLength)
{
args.Handled = true;
//source.Validate("MAX", "Max length is " + source.MaxLength);
}
else
{
args.Handled = false;
}
}
else
{
args.Handled = false;
}
}
};
native.BeforeTextChanged += (object sender, global::Android.Text.TextChangedEventArgs e2) => {
if (source.Locked == false && source.Mask != null)
{
source.SelectionStart = native.SelectionStart;
source.SelectionEnd = native.SelectionEnd;
source.TextLength = native.Text.Length;
}
else if(source.Mask == null)
{
source.SelectionStart = native.SelectionStart;
source.SelectionEnd = native.SelectionEnd;
source.TextLength = native.Text.Length;
}
};
SetNativeControl(native);
}
}
protected override void OnElementPropertyChanged(object sender, System.ComponentModel.PropertyChangedEventArgs e)
{
base.OnElementPropertyChanged (sender, e);
if (e.PropertyName == "SetSelection") {
pt = source.SetSelection;
} else if (e.PropertyName == "FormatCharacters") {
this.FormatCharacters = source.FormatCharacters.ToCharArray ();
}
}
//protected void EditingDidBegin(object sender, EventArgs e)
//{
// var x=0;
//}
protected override void OnElementPropertyChanged(object sender, System.ComponentModel.PropertyChangedEventArgs e)
{
base.OnElementPropertyChanged(sender, e);
//if (source.Delete && isSecond==false ){
// pt = source.SetSelection;
// isSecond=true;
// lastPos = pt.Start;
//}
var view = (MyEntry)Element;
var PN = e.PropertyName;
if (PN == "SetSelection")
{
pt = source.SetSelection;
if (pt != null && FormatCharacters != null)
{
if (pt.Start != -1)
{
if (pt.End != -1)
{
var positionToSet = native.GetPosition(native.BeginningOfDocument, pt.Start);
native.SelectedTextRange = native.GetTextRange(positionToSet, positionToSet);
//native.SetSelection (pt.Start, pt.End);
}
else
{
if (pt.Start >= native.Text.Length)
{
pt.Start = native.Text.Length;
}
else
{
var before = source.BeforeChars;
if (before == "")
{
pt.Start = 1;
}
else
{
var text = native.Text;
for (int i = 0; i < text.Length; i++)
{
string c = text[i].ToString();
if (FormatCharacters.Where(ch => ch.ToString() == c.ToString()).Count() <= 0)
{
// no placeholder1
//if (before [0].ToString () == c) {
// before = before.Substring (1);
//}
//if (String.IsNullOrEmpty (before)) {
// pt.Start = i + 1;
// break;
//}
}
}
}
}
//var getPos =native.GetOffsetFromPosition(native.BeginningOfDocument,native.SelectedTextRange.Start);
//var positionToSet = native.GetPosition (native.BeginningOfDocument, getPos);
if (source.Locked && source.Delete)
{
if (source.SelectionStart - 1 < native.Text.Length)
{
lastPos = source.SelectionStart;
ifIsInside = true;
}
}
else if (source.Locked && !source.Delete)
{
if (source.SelectionStart < native.Text.Length - 1)
{
ifIsInside = true;
}
else
{
ifIsInside = false;
}
}
else
{
}
//native.SetSelection(pt.Start);
}
}
pt = null;
//source.Delete = false;
source.Locked = false;
}
}
else if (e.PropertyName == "FormatCharacters")
{
this.FormatCharacters = source.FormatCharacters.ToCharArray();
}
else if (e.PropertyName == "Text")
{
pt = source.SetSelection;
if (source.Delete)
{
//if (isSecond) {
if (ifIsInside)
{
//if (lastPos < source.SelectionStart) {
var positionToSet = native.GetPosition(native.BeginningOfDocument, source.SelectionStart - 1);
native.SelectedTextRange = native.GetTextRange(positionToSet, positionToSet);
//}
//isSecond = false;
}
}
else
{
if (ifIsInside)
{
var positionToSet = native.GetPosition(native.BeginningOfDocument, source.SelectionStart + 1);
native.SelectedTextRange = native.GetTextRange(positionToSet, positionToSet);
}
}
}
else if (e.PropertyName == MyEntry.FontProperty.PropertyName)
SetFont(view);
else if (e.PropertyName == MyEntry.XAlignProperty.PropertyName)
SetTextAlignment(view);
else if (e.PropertyName == MyEntry.HasBorderProperty.PropertyName)
SetBorder(view);
else if (e.PropertyName == MyEntry.PlaceholderTextColorProperty.PropertyName)
SetPlaceholderTextColor(view);
ResizeHeight();
}