forked from dotnet/maui
/
EntryRenderer.cs
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/
EntryRenderer.cs
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using System;
using ElmSharp;
using Microsoft.Maui.Controls.Platform;
using EEntry = ElmSharp.Entry;
using NIEntry = Microsoft.Maui.Controls.Compatibility.Platform.Tizen.Native.IEntry;
using Specific = Microsoft.Maui.Controls.PlatformConfiguration.TizenSpecific.Entry;
using Size = Microsoft.Maui.Graphics.Size;
namespace Microsoft.Maui.Controls.Compatibility.Platform.Tizen
{
public class EntryRenderer : ViewRenderer<Entry, EEntry>
{
SmartEvent _selectionCleared;
bool _nativeSelectionIsUpdating;
public EntryRenderer()
{
RegisterPropertyHandler(Entry.IsPasswordProperty, UpdateIsPassword);
RegisterPropertyHandler(Entry.TextProperty, UpdateText);
RegisterPropertyHandler(Entry.TextColorProperty, UpdateTextColor);
RegisterPropertyHandler(Entry.FontSizeProperty, UpdateFontSize);
RegisterPropertyHandler(Entry.FontFamilyProperty, UpdateFontFamily);
RegisterPropertyHandler(Entry.FontAttributesProperty, UpdateFontAttributes);
RegisterPropertyHandler(Entry.HorizontalTextAlignmentProperty, UpdateHorizontalTextAlignment);
RegisterPropertyHandler(Entry.VerticalTextAlignmentProperty, UpdateVerticalTextAlignment);
RegisterPropertyHandler(InputView.KeyboardProperty, UpdateKeyboard);
RegisterPropertyHandler(Entry.PlaceholderProperty, UpdatePlaceholder);
RegisterPropertyHandler(Entry.PlaceholderColorProperty, UpdatePlaceholderColor);
RegisterPropertyHandler(InputView.MaxLengthProperty, UpdateMaxLength);
RegisterPropertyHandler(Entry.ReturnTypeProperty, UpdateReturnType);
RegisterPropertyHandler(InputView.IsSpellCheckEnabledProperty, UpdateIsSpellCheckEnabled);
RegisterPropertyHandler(Entry.IsTextPredictionEnabledProperty, UpdateIsSpellCheckEnabled);
RegisterPropertyHandler(Specific.FontWeightProperty, UpdateFontWeight);
RegisterPropertyHandler(Entry.SelectionLengthProperty, UpdateSelectionLength);
RegisterPropertyHandler(InputView.IsReadOnlyProperty, UpdateIsReadOnly);
RegisterPropertyHandler(Entry.ClearButtonVisibilityProperty, UpdateClearButtonVisibility);
RegisterPropertyHandler(Entry.CursorPositionProperty, UpdateSelectionLength);
}
protected override void OnElementChanged(ElementChangedEventArgs<Entry> e)
{
if (Control == null)
{
var entry = CreateNativeControl();
entry.Activated += OnCompleted;
entry.CursorChanged += OnCursorChanged;
// In order to know when the selection is cleared, "selecton,cleared" event has been used.
// Because CursorChanged event is still invoked with the selected text when an user clears selection. It is an known issue in EFL.
_selectionCleared = new SmartEvent(entry, entry.RealHandle, ThemeConstants.Entry.Signals.SelectionCleared);
_selectionCleared.On += OnSelectionCleared;
if (entry is NIEntry ie)
{
ie.TextChanged += OnTextChanged;
ie.EntryLayoutFocused += OnFocused;
ie.EntryLayoutUnfocused += OnUnfocused;
}
entry.PrependMarkUpFilter(MaxLengthFilter);
SetNativeControl(entry);
// An initial CursorPosition is set after layouting to avoid timing issue when the EditField entry is initialized.
Device.BeginInvokeOnMainThread(() =>
{
UpdateSelectionLength(false);
});
}
base.OnElementChanged(e);
}
protected virtual EEntry CreateNativeControl()
{
return new Native.EditfieldEntry(Forms.NativeParent)
{
IsSingleLine = true,
};
}
protected override void Dispose(bool disposing)
{
if (disposing)
{
if (null != Control)
{
Control.Activated -= OnCompleted;
Control.CursorChanged -= OnCursorChanged;
if (Control is NIEntry ie)
{
ie.TextChanged -= OnTextChanged;
ie.EntryLayoutFocused -= OnFocused;
ie.EntryLayoutUnfocused -= OnUnfocused;
}
}
}
base.Dispose(disposing);
}
protected override Size MinimumSize()
{
Size measured;
if (Control is Native.IMeasurable im)
{
measured = im.Measure(Control.MinimumWidth, Control.MinimumHeight).ToDP();
}
else
{
measured = base.MinimumSize();
}
return measured;
}
void OnTextChanged(object sender, EventArgs e)
{
Element.SetValueFromRenderer(Entry.TextProperty, Control.Text);
}
void OnCompleted(object sender, EventArgs e)
{
Control.SetFocus(false);
((IEntryController)Element).SendCompleted();
}
void UpdateIsPassword()
{
Control.IsPassword = Element.IsPassword;
}
void UpdateText()
{
Control.Text = Element.Text ?? "";
if (!Control.IsFocused)
{
Control.MoveCursorEnd();
}
}
protected virtual void UpdateTextColor()
{
if (Control is NIEntry ie)
{
ie.TextColor = Element.TextColor.ToNativeEFL();
}
}
void UpdateFontSize()
{
if (Control is NIEntry ie)
{
ie.FontSize = Element.FontSize;
}
}
void UpdateFontFamily()
{
if (Control is NIEntry ie)
{
ie.FontFamily = Element.FontFamily.ToNativeFontFamily();
}
}
void UpdateFontAttributes()
{
if (Control is NIEntry ie)
{
ie.FontAttributes = Element.FontAttributes;
}
}
void UpdateHorizontalTextAlignment()
{
if (Control is NIEntry ie)
{
ie.HorizontalTextAlignment = Element.HorizontalTextAlignment.ToNative();
}
}
void UpdateVerticalTextAlignment()
{
Control.SetVerticalTextAlignment(Element.VerticalTextAlignment.ToNativeDouble());
Control.SetVerticalPlaceHolderTextAlignment(Element.VerticalTextAlignment.ToNativeDouble());
}
void UpdateKeyboard(bool initialize)
{
if (initialize && Element.Keyboard == Keyboard.Default)
return;
(Control as NIEntry)?.UpdateKeyboard(Element.Keyboard, Element.IsSpellCheckEnabled, Element.IsTextPredictionEnabled);
}
void UpdateIsSpellCheckEnabled()
{
Control.InputHint = Element.Keyboard.ToInputHints(Element.IsSpellCheckEnabled, Element.IsTextPredictionEnabled);
}
void UpdatePlaceholder()
{
if (Control is NIEntry ie)
{
ie.Placeholder = Element.Placeholder;
}
}
void UpdatePlaceholderColor()
{
if (Control is NIEntry ie)
{
ie.PlaceholderColor = Element.PlaceholderColor.ToNativeEFL();
}
}
void UpdateFontWeight()
{
if (Control is NIEntry ie)
{
ie.FontWeight = Specific.GetFontWeight(Element);
}
}
void UpdateMaxLength()
{
if (Control.Text.Length > Element.MaxLength)
Control.Text = Control.Text.Substring(0, Element.MaxLength);
}
string MaxLengthFilter(ElmSharp.Entry entry, string s)
{
if (entry.Text.Length < Element.MaxLength)
return s;
return null;
}
void UpdateReturnType()
{
Control.SetInputPanelReturnKeyType(Element.ReturnType.ToInputPanelReturnKeyType());
}
void UpdateSelectionLength(bool initialize)
{
if (initialize || _nativeSelectionIsUpdating)
return;
var start = GetSelectionStart();
var end = GetSelectionEnd(start);
var selectionLength = end - start;
if (selectionLength != Element.SelectionLength)
SetSelectionLengthFromRenderer(selectionLength);
if (selectionLength > 0)
{
Control.SetSelectionRegion(start, end);
}
else
{
Control.CursorPosition = Element.CursorPosition;
}
}
int GetSelectionEnd(int start)
{
var end = start;
if (Element.IsSet(Entry.SelectionLengthProperty))
end = Math.Min((start + Element.SelectionLength), Element.Text?.Length ?? 0);
return end;
}
int GetSelectionStart()
{
var start = Element.Text?.Length ?? 0;
var cursorPosition = Element.CursorPosition;
if (Element.IsSet(Entry.CursorPositionProperty))
start = Math.Min(start, cursorPosition);
if (start != cursorPosition)
SetCursorPositionFromRenderer(start);
return start;
}
void OnSelectionCleared(object sender, EventArgs e)
{
if (Control.IsFocused)
{
SetSelectionLengthFromRenderer(0);
SetCursorPositionFromRenderer(Control.CursorPosition);
}
}
void OnCursorChanged(object sender, EventArgs e)
{
var position = Control.CursorPosition;
Control.GetSelectRegion(out int start, out int end);
if (start > -1)
{
position = (start < end) ? start : end;
var selectionLength = Math.Abs(end - start);
SetSelectionLengthFromRenderer(selectionLength);
}
SetCursorPositionFromRenderer(position);
}
void SetCursorPositionFromRenderer(int position)
{
try
{
_nativeSelectionIsUpdating = true;
Element?.SetValueFromRenderer(Entry.CursorPositionProperty, position);
}
catch (Exception ex)
{
Log.Error($"Failed to set CursorPosition from renderer: {ex}");
}
finally
{
_nativeSelectionIsUpdating = false;
}
}
void SetSelectionLengthFromRenderer(int selectionLength)
{
try
{
_nativeSelectionIsUpdating = true;
Element?.SetValueFromRenderer(Entry.SelectionLengthProperty, selectionLength);
}
catch (Exception ex)
{
Log.Error($"Failed to set SelectionLength from renderer: {ex}");
}
finally
{
_nativeSelectionIsUpdating = false;
}
}
void UpdateIsReadOnly()
{
Control.IsEditable = !Element.IsReadOnly;
}
void UpdateClearButtonVisibility(bool init)
{
if (Element.ClearButtonVisibility == ClearButtonVisibility.WhileEditing)
{
if (Control is Native.EditfieldEntry editfieldEntry)
{
editfieldEntry.EnableClearButton = true;
}
}
else if (!init)
{
if (Control is Native.EditfieldEntry editfieldEntry)
{
editfieldEntry.EnableClearButton = false;
}
}
}
}
}