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1514 行
63 KiB
1514 行
63 KiB
using System;
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using System.Collections.Generic;
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using Unity.UIWidgets.animation;
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using Unity.UIWidgets.async2;
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using Unity.UIWidgets.foundation;
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using Unity.UIWidgets.gestures;
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//using Unity.UIWidgets.material;
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using Unity.UIWidgets.painting;
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using Unity.UIWidgets.rendering;
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using Unity.UIWidgets.scheduler2;
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using Unity.UIWidgets.service;
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using Unity.UIWidgets.ui;
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using UnityEditor;
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using UnityEngine;
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using Brightness = Unity.UIWidgets.ui.Brightness;
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using Color = Unity.UIWidgets.ui.Color;
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using MathUtils = Unity.UIWidgets.ui.MathUtils;
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using Rect = Unity.UIWidgets.ui.Rect;
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using StrutStyle = Unity.UIWidgets.painting.StrutStyle;
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using TextStyle = Unity.UIWidgets.painting.TextStyle;
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namespace Unity.UIWidgets.widgets {
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public delegate void SelectionChangedCallback(TextSelection selection, SelectionChangedCause cause);
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public class TextEditingController : ValueNotifier<TextEditingValue> {
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public TextEditingController(string text = null) : base(text == null
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? TextEditingValue.empty
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: new TextEditingValue(text)) {
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}
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TextEditingController(TextEditingValue value) : base(value ?? TextEditingValue.empty) {
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}
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public static TextEditingController fromValue(TextEditingValue value) {
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return new TextEditingController(value);
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}
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public string text {
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get { return value.text; }
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set {
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this.value = this.value.copyWith(
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text: value,
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selection: TextSelection.collapsed(-1),
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composing: TextRange.empty);
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}
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}
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public virtual TextSpan buildTextSpan(TextStyle style = null , bool withComposing = false) {
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if (!value.composing.isValid || !withComposing) {
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return new TextSpan(style: style, text: text);
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}
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TextStyle composingStyle = style.merge(
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new TextStyle(decoration: TextDecoration.underline)
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);
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var spans = new List<InlineSpan>();
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spans.Add(new TextSpan(text: value.composing.textBefore(value.text)));
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spans.Add(new TextSpan(
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style: composingStyle,
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text: value.composing.textInside(value.text)));
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spans.Add(new TextSpan(text: value.composing.textAfter(value.text)));
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return new TextSpan(
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style: style,
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children: spans
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);
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}
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public TextSelection selection {
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get { return value.selection; }
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set {
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if (value.start > text.Length || value.end > text.Length) {
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throw new UIWidgetsError($"invalid text selection: {value}");
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}
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this.value = this.value.copyWith(selection: value, composing: TextRange.empty);
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}
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}
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public void clear() {
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value = TextEditingValue.empty;
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}
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public void clearComposing() {
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value = value.copyWith(composing: TextRange.empty);
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}
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public bool isSelectionWithinTextBounds(TextSelection selection) {
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return selection.start <= text.Length && selection.end <= text.Length;
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}
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}
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public class ToolbarOptions {
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public ToolbarOptions(
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bool copy = false,
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bool cut = false,
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bool paste = false,
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bool selectAll = false
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) {
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this.copy = copy;
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this.cut = cut;
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this.paste = paste;
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this.selectAll = selectAll;
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}
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public readonly bool copy;
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public readonly bool cut;
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public readonly bool paste;
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public readonly bool selectAll;
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}
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public class EditableText : StatefulWidget {
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public EditableText(
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Key key = null,
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TextEditingController controller = null,
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FocusNode focusNode = null,
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bool readOnly = false,
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bool obscureText = false,
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bool autocorrect = true,
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SmartDashesType? smartDashesType = null,
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SmartQuotesType? smartQuotesType = null,
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bool enableSuggestions = true,
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TextStyle style = null,
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StrutStyle strutStyle = null,
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Color cursorColor = null,
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Color backgroundCursorColor = null,
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TextAlign textAlign = TextAlign.start,
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TextDirection? textDirection = null,
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Locale locale = null,
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float? textScaleFactor = null,
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int? maxLines = 1,
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int? minLines = null,
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bool expands = false,
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bool forceLine = true,
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TextWidthBasis textWidthBasis = TextWidthBasis.parent,
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bool autofocus = false,
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bool? showCursor = null,
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bool showSelectionHandles = false,
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Color selectionColor = null,
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TextSelectionControls selectionControls = null,
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TextInputType keyboardType = null,
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TextInputAction? textInputAction = null,
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TextCapitalization textCapitalization = TextCapitalization.none,
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ValueChanged<string> onChanged = null,
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VoidCallback onEditingComplete = null,
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ValueChanged<string> onSubmitted = null,
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SelectionChangedCallback onSelectionChanged = null,
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VoidCallback onSelectionHandleTapped = null,
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List<TextInputFormatter> inputFormatters = null,
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bool rendererIgnoresPointer = false,
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float cursorWidth = 2.0f,
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Radius cursorRadius = null,
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bool cursorOpacityAnimates = false,
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Offset cursorOffset = null,
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bool paintCursorAboveText = false,
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BoxHeightStyle selectionHeightStyle = BoxHeightStyle.tight,
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BoxWidthStyle selectionWidthStyle = BoxWidthStyle.tight,
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EdgeInsets scrollPadding = null,
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Brightness? keyboardAppearance = Brightness.light,
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DragStartBehavior dragStartBehavior = DragStartBehavior.start,
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bool? enableInteractiveSelection = true,
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ScrollController scrollController = null,
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ScrollPhysics scrollPhysics = null,
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ToolbarOptions toolbarOptions = null,
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bool unityTouchKeyboard = false
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) : base(key) {
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D.assert(controller != null);
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D.assert(focusNode != null);
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smartDashesType = smartDashesType ?? (obscureText ? SmartDashesType.disabled : SmartDashesType.enabled);
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smartQuotesType = smartQuotesType ?? (obscureText ? SmartQuotesType.disabled : SmartQuotesType.enabled);
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D.assert(enableInteractiveSelection != null);
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D.assert(style != null);
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D.assert(cursorColor != null);
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D.assert(backgroundCursorColor != null);
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D.assert(maxLines == null || maxLines > 0);
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D.assert(minLines == null || minLines > 0);
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D.assert(
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(maxLines == null) || (minLines == null) || (maxLines >= minLines),
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()=>"minLines can't be greater than maxLines"
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);
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D.assert(
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!expands || (maxLines == null && minLines == null),()=>
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"minLines and maxLines must be null when expands is true."
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);
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D.assert(!obscureText || maxLines == 1, () => "Obscured fields cannot be multiline.");
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scrollPadding = scrollPadding ?? EdgeInsets.all(20.0f);
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D.assert(scrollPadding != null);
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toolbarOptions = toolbarOptions ?? new ToolbarOptions(
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copy: true,
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cut: true,
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paste: true,
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selectAll: true
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);
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inputFormatters = inputFormatters ?? new List<TextInputFormatter>();
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keyboardType = keyboardType ?? (maxLines == 1 ? TextInputType.text : TextInputType.multiline);
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List<TextInputFormatter> formatters = new List<TextInputFormatter>();
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if (inputFormatters == null) {
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formatters = inputFormatters;
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}
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inputFormatters = maxLines == 1
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? new List<TextInputFormatter>() {
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BlacklistingTextInputFormatter.singleLineFormatter,
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}
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: inputFormatters;
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if (maxLines == 1) {
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foreach (var formatter in formatters) {
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inputFormatters.Add(formatter);
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}
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}
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showCursor = showCursor ?? !readOnly;
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this.readOnly = readOnly;
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this.keyboardType = keyboardType ?? (maxLines == 1 ? TextInputType.text : TextInputType.multiline);
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this.locale = locale;
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this.scrollPadding = scrollPadding;
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this.controller = controller;
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this.focusNode = focusNode;
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this.obscureText = obscureText;
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this.autocorrect = autocorrect;
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this.style = style;
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this.smartDashesType = smartDashesType.Value;
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this.smartQuotesType = smartQuotesType.Value;
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this.showCursor = showCursor.Value;
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this.textWidthBasis = textWidthBasis;
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this.onSelectionHandleTapped = onSelectionHandleTapped;
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this.scrollController = scrollController;
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this.selectionHeightStyle = selectionHeightStyle;
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this.selectionWidthStyle = selectionWidthStyle;
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this.enableSuggestions = enableSuggestions;
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this.forceLine = forceLine;
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this.showSelectionHandles = showSelectionHandles;
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this.toolbarOptions = toolbarOptions;
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_strutStyle = strutStyle;
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this.textAlign = textAlign;
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this.textDirection = textDirection;
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this.textScaleFactor = textScaleFactor;
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this.textInputAction = textInputAction;
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this.textCapitalization = textCapitalization;
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this.cursorColor = cursorColor;
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this.backgroundCursorColor = backgroundCursorColor ; // TODO: remove ??
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this.maxLines = maxLines;
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this.minLines = minLines;
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this.expands = expands;
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this.autofocus = autofocus;
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this.selectionColor = selectionColor;
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this.onChanged = onChanged;
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this.onSubmitted = onSubmitted;
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this.onSelectionChanged = onSelectionChanged;
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this.onEditingComplete = onEditingComplete;
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this.rendererIgnoresPointer = rendererIgnoresPointer;
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this.selectionControls = selectionControls;
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this.unityTouchKeyboard = unityTouchKeyboard;
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if (maxLines == 1) {
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this.inputFormatters = new List<TextInputFormatter>();
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this.inputFormatters.Add(BlacklistingTextInputFormatter.singleLineFormatter);
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if (inputFormatters != null) {
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this.inputFormatters.AddRange(inputFormatters);
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}
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}
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else {
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this.inputFormatters = inputFormatters;
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}
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this.cursorWidth = cursorWidth;
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this.cursorRadius = cursorRadius;
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this.cursorOpacityAnimates = cursorOpacityAnimates;
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this.cursorOffset = cursorOffset;
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this.paintCursorAboveText = paintCursorAboveText;
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this.keyboardAppearance = keyboardAppearance;
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this.enableInteractiveSelection = enableInteractiveSelection;
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this.dragStartBehavior = dragStartBehavior;
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this.scrollPhysics = scrollPhysics;
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}
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public readonly bool readOnly;
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public readonly Locale locale;
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public readonly TextEditingController controller;
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public readonly FocusNode focusNode;
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public readonly bool obscureText;
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public readonly bool autocorrect;
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public readonly SmartDashesType smartDashesType;
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public readonly SmartQuotesType smartQuotesType;
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public readonly TextStyle style;
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public readonly bool enableSuggestions;
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public readonly TextWidthBasis textWidthBasis;
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public readonly VoidCallback onSelectionHandleTapped;
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public readonly ScrollController scrollController;
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public readonly bool showCursor;
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public readonly BoxHeightStyle selectionHeightStyle;
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public readonly BoxWidthStyle selectionWidthStyle;
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public readonly bool forceLine;
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public readonly bool showSelectionHandles ;
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public readonly ToolbarOptions toolbarOptions;
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public StrutStyle strutStyle {
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get {
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if (_strutStyle == null) {
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return style != null
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? StrutStyle.fromTextStyle(style, forceStrutHeight: true)
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: new StrutStyle();
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}
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return _strutStyle.inheritFromTextStyle(style);
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}
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}
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readonly StrutStyle _strutStyle;
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public readonly TextAlign textAlign;
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public readonly TextDirection? textDirection;
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public readonly TextCapitalization textCapitalization;
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public readonly float? textScaleFactor;
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public readonly Color cursorColor;
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public readonly Color backgroundCursorColor;
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public readonly int? maxLines;
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public readonly int? minLines;
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public readonly bool expands;
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public readonly bool autofocus;
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public readonly Color selectionColor;
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public readonly TextSelectionControls selectionControls;
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public readonly TextInputType keyboardType;
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public readonly TextInputAction? textInputAction;
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public readonly ValueChanged<string> onChanged;
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public readonly VoidCallback onEditingComplete;
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public readonly ValueChanged<string> onSubmitted;
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public readonly SelectionChangedCallback onSelectionChanged;
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public readonly List<TextInputFormatter> inputFormatters;
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public readonly bool rendererIgnoresPointer;
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public readonly bool unityTouchKeyboard;
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public readonly float? cursorWidth;
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public readonly Radius cursorRadius;
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public readonly bool cursorOpacityAnimates;
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public readonly Offset cursorOffset;
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public readonly bool paintCursorAboveText;
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public readonly Brightness? keyboardAppearance;
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public readonly EdgeInsets scrollPadding;
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public readonly DragStartBehavior dragStartBehavior;
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public readonly bool? enableInteractiveSelection;
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public readonly ScrollPhysics scrollPhysics;
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public readonly GlobalKeyEventHandlerDelegate globalKeyEventHandler;
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public bool selectionEnabled {
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get { return enableInteractiveSelection ?? !obscureText; }
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}
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public override State createState() {
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return new EditableTextState();
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}
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public static bool debugDeterministicCursor = false;
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public override void debugFillProperties(DiagnosticPropertiesBuilder properties) {
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base.debugFillProperties(properties);
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properties.add( new DiagnosticsProperty<TextEditingController>("controller", controller));
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properties.add( new DiagnosticsProperty<FocusNode>("focusNode", focusNode));
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properties.add( new DiagnosticsProperty<bool>("obscureText", obscureText, defaultValue: false));
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properties.add( new DiagnosticsProperty<bool>("autocorrect", autocorrect, defaultValue: true));
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properties.add( new EnumProperty<SmartDashesType>("smartDashesType", smartDashesType, defaultValue: obscureText ? SmartDashesType.disabled : SmartDashesType.enabled));
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properties.add( new EnumProperty<SmartQuotesType>("smartQuotesType", smartQuotesType, defaultValue: obscureText ? SmartQuotesType.disabled : SmartQuotesType.enabled));
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properties.add( new DiagnosticsProperty<bool>("enableSuggestions", enableSuggestions, defaultValue: true));
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style?.debugFillProperties(properties);
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properties.add( new EnumProperty<TextAlign>("textAlign", textAlign, defaultValue: null));
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properties.add( new EnumProperty<TextDirection?>("textDirection", textDirection, defaultValue: null));
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properties.add( new DiagnosticsProperty<Locale>("locale", locale, defaultValue: null));
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properties.add( new FloatProperty("textScaleFactor", textScaleFactor, defaultValue: null));
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properties.add( new IntProperty("maxLines", maxLines, defaultValue: 1));
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properties.add( new IntProperty("minLines", minLines, defaultValue: null));
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properties.add( new DiagnosticsProperty<bool>("expands", expands, defaultValue: false));
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properties.add( new DiagnosticsProperty<bool>("autofocus", autofocus, defaultValue: false));
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properties.add( new DiagnosticsProperty<TextInputType>("keyboardType", keyboardType, defaultValue: null));
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properties.add( new DiagnosticsProperty<ScrollController>("scrollController", scrollController, defaultValue: null));
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properties.add( new DiagnosticsProperty<ScrollPhysics>("scrollPhysics", scrollPhysics, defaultValue: null));
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}
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}
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public class EditableTextState : AutomaticKeepAliveClientWithTickerProviderStateMixin<EditableText>,
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WidgetsBindingObserver, TextInputClient,
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TextSelectionDelegate
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{
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const int _kObscureShowLatestCharCursorTicks = 3;
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static TimeSpan _kCursorBlinkHalfPeriod = TimeSpan.FromMilliseconds(500);
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static TimeSpan _kCursorBlinkWaitForStart = TimeSpan.FromMilliseconds(150);
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const float kMinInteractiveDimension = 48.0f;
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Timer _cursorTimer;
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bool _targetCursorVisibility = false;
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ValueNotifier<bool> _cursorVisibilityNotifier = new ValueNotifier<bool>(false);
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public readonly LayerLink _toolbarLayerLink = new LayerLink();
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public readonly LayerLink _startHandleLayerLink = new LayerLink();
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public readonly LayerLink _endHandleLayerLink = new LayerLink();
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GlobalKey _editableKey = GlobalKey.key();
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TextInputConnection _textInputConnection;
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TextSelectionOverlay _selectionOverlay;
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public ScrollController _scrollController = new ScrollController();
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AnimationController _cursorBlinkOpacityController;
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bool _didAutoFocus = false;
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FocusAttachment _focusAttachment;
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TextEditingValue _lastFormattedUnmodifiedTextEditingValue;
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TextEditingValue _lastFormattedValue;
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TextEditingValue _receivedRemoteTextEditingValue;
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static readonly TimeSpan _fadeDuration = TimeSpan.FromMilliseconds(250);
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static readonly TimeSpan _floatingCursorResetTime = TimeSpan.FromMilliseconds(125);
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AnimationController _floatingCursorResetController;
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protected override bool wantKeepAlive {
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get { return widget.focusNode.hasFocus; }
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}
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Color _cursorColor {
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get { return widget.cursorColor.withOpacity(_cursorBlinkOpacityController.value); }
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}
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public override void initState() {
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base.initState();
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widget.controller.addListener(_didChangeTextEditingValue);
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_focusAttachment = widget.focusNode.attach(context);
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widget.focusNode.addListener(_handleFocusChanged);
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_scrollController = widget.scrollController ?? new ScrollController();
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_scrollController.addListener(() => { _selectionOverlay?.updateForScroll(); });
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_cursorBlinkOpacityController = new AnimationController(vsync: this, duration: _fadeDuration);
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_cursorBlinkOpacityController.addListener(_onCursorColorTick);
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_floatingCursorResetController = new AnimationController(vsync: this);
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_floatingCursorResetController.addListener(_onFloatingCursorResetTick);
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_cursorVisibilityNotifier.value = widget.showCursor;
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}
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public override void didChangeDependencies() {
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base.didChangeDependencies();
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if (!_didAutoFocus && widget.autofocus) {
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_didAutoFocus = true;
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SchedulerBinding.instance.addPostFrameCallback((_) => {
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if (mounted) {
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FocusScope.of(context).autofocus(widget.focusNode);
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}
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});
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}
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}
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public override void didUpdateWidget(StatefulWidget old) {
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EditableText oldWidget = (EditableText) old;
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base.didUpdateWidget(oldWidget);
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if (widget.controller != oldWidget.controller) {
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oldWidget.controller.removeListener(_didChangeTextEditingValue);
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widget.controller.addListener(_didChangeTextEditingValue);
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_updateRemoteEditingValueIfNeeded();
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}
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if (widget.controller.selection != oldWidget.controller.selection) {
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_selectionOverlay?.update(_value);
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}
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if (_selectionOverlay != null) {
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_selectionOverlay.handlesVisible = widget.showSelectionHandles;
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}
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if (widget.focusNode != oldWidget.focusNode) {
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oldWidget.focusNode.removeListener(_handleFocusChanged);
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_focusAttachment?.detach();
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_focusAttachment = widget.focusNode.attach(context);
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widget.focusNode.addListener(_handleFocusChanged);
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updateKeepAlive();
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}
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if (widget.readOnly) {
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_closeInputConnectionIfNeeded();
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} else {
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if (oldWidget.readOnly && _hasFocus)
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_openInputConnection();
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}
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if (widget.style != oldWidget.style) {
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TextStyle style = widget.style;
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if (_textInputConnection != null && _textInputConnection.attached) {
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_textInputConnection.setStyle(
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fontFamily: style.fontFamily,
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fontSize: style.fontSize,
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fontWeight: style.fontWeight,
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textDirection: _textDirection.Value,
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textAlign: widget.textAlign
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);
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}
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}
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}
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public override void dispose() {
|
|
widget.controller.removeListener(_didChangeTextEditingValue);
|
|
_cursorBlinkOpacityController.removeListener(_onCursorColorTick);
|
|
_floatingCursorResetController.removeListener(_onFloatingCursorResetTick);
|
|
_closeInputConnectionIfNeeded();
|
|
D.assert(!_hasInputConnection);
|
|
_stopCursorTimer();
|
|
D.assert(_cursorTimer == null);
|
|
_selectionOverlay?.dispose();
|
|
_selectionOverlay = null;
|
|
_focusAttachment.detach();
|
|
widget.focusNode.removeListener(_handleFocusChanged);
|
|
base.dispose();
|
|
}
|
|
TextEditingValue _lastKnownRemoteTextEditingValue;
|
|
|
|
public void updateEditingValue(TextEditingValue value, bool isIMEInput) {
|
|
if (widget.readOnly) {
|
|
return;
|
|
}
|
|
_receivedRemoteTextEditingValue = value;
|
|
if (value.text != _value.text) {
|
|
hideToolbar();
|
|
_showCaretOnScreen();
|
|
if (widget.obscureText && value.text.Length == _value.text.Length + 1) {
|
|
_obscureShowCharTicksPending = !_unityKeyboard() ? _kObscureShowLatestCharCursorTicks : 0;
|
|
_obscureLatestCharIndex = _value.selection.baseOffset;
|
|
}
|
|
}
|
|
_formatAndSetValue(value, isIMEInput);
|
|
_stopCursorTimer(resetCharTicks: false);
|
|
_startCursorTimer();
|
|
}
|
|
|
|
public void performAction(TextInputAction action) {
|
|
switch (action) {
|
|
case TextInputAction.newline:
|
|
if (!_isMultiline) {
|
|
_finalizeEditing(true);
|
|
}
|
|
|
|
break;
|
|
case TextInputAction.done:
|
|
case TextInputAction.go:
|
|
case TextInputAction.send:
|
|
case TextInputAction.search:
|
|
_finalizeEditing(true);
|
|
break;
|
|
default:
|
|
_finalizeEditing(false);
|
|
break;
|
|
}
|
|
}
|
|
|
|
Rect _startCaretRect;
|
|
|
|
TextPosition _lastTextPosition;
|
|
|
|
Offset _pointOffsetOrigin;
|
|
|
|
Offset _lastBoundedOffset;
|
|
|
|
Offset _floatingCursorOffset {
|
|
get { return new Offset(0, renderEditable.preferredLineHeight / 2); }
|
|
}
|
|
|
|
public void updateFloatingCursor(RawFloatingCursorPoint point) {
|
|
switch (point.state) {
|
|
case FloatingCursorDragState.Start:
|
|
if (_floatingCursorResetController.isAnimating) {
|
|
_floatingCursorResetController.stop();
|
|
_onFloatingCursorResetTick();
|
|
}
|
|
TextPosition currentTextPosition =
|
|
new TextPosition(offset: renderEditable.selection.baseOffset);
|
|
_startCaretRect = renderEditable.getLocalRectForCaret(currentTextPosition);
|
|
renderEditable.setFloatingCursor(point.state,
|
|
_startCaretRect.center - _floatingCursorOffset, currentTextPosition);
|
|
break;
|
|
case FloatingCursorDragState.Update:
|
|
// We want to send in points that are centered around a (0,0) origin, so we cache the
|
|
// position on the first update call.
|
|
if (_pointOffsetOrigin != null) {
|
|
Offset centeredPoint = point.offset - _pointOffsetOrigin;
|
|
Offset rawCursorOffset =
|
|
_startCaretRect.center + centeredPoint - _floatingCursorOffset;
|
|
_lastBoundedOffset =
|
|
renderEditable.calculateBoundedFloatingCursorOffset(rawCursorOffset);
|
|
_lastTextPosition = renderEditable.getPositionForPoint(
|
|
renderEditable.localToGlobal(_lastBoundedOffset + _floatingCursorOffset));
|
|
renderEditable.setFloatingCursor(point.state, _lastBoundedOffset,
|
|
_lastTextPosition);
|
|
}
|
|
else {
|
|
_pointOffsetOrigin = point.offset;
|
|
}
|
|
|
|
break;
|
|
case FloatingCursorDragState.End:
|
|
if (_lastTextPosition != null && _lastBoundedOffset != null) {
|
|
_floatingCursorResetController.setValue(0.0f);
|
|
_floatingCursorResetController.animateTo(1.0f, duration: _floatingCursorResetTime,
|
|
curve: Curves.decelerate);
|
|
}
|
|
|
|
break;
|
|
}
|
|
}
|
|
|
|
public RawInputKeyResponse globalInputKeyHandler(RawKeyEvent evt) {
|
|
return widget.globalKeyEventHandler?.Invoke(evt, true) ?? RawInputKeyResponse.convert(evt);
|
|
}
|
|
|
|
public TextEditingValue currentTextEditingValue {
|
|
get {
|
|
return _value;
|
|
}
|
|
}
|
|
public void connectionClosed() {
|
|
if (_hasInputConnection) {
|
|
_textInputConnection.connectionClosedReceived();
|
|
_textInputConnection = null;
|
|
_lastFormattedUnmodifiedTextEditingValue = null;
|
|
_receivedRemoteTextEditingValue = null;
|
|
_finalizeEditing(true);
|
|
}
|
|
}
|
|
|
|
void _onFloatingCursorResetTick() {
|
|
Offset finalPosition = renderEditable.getLocalRectForCaret(_lastTextPosition).centerLeft -
|
|
_floatingCursorOffset;
|
|
if (_floatingCursorResetController.isCompleted) {
|
|
renderEditable.setFloatingCursor(FloatingCursorDragState.End, finalPosition,
|
|
_lastTextPosition);
|
|
if (_lastTextPosition.offset != renderEditable.selection.baseOffset) {
|
|
_handleSelectionChanged(TextSelection.collapsed(offset: _lastTextPosition.offset),
|
|
renderEditable, SelectionChangedCause.forcePress);
|
|
}
|
|
|
|
_startCaretRect = null;
|
|
_lastTextPosition = null;
|
|
_pointOffsetOrigin = null;
|
|
_lastBoundedOffset = null;
|
|
}
|
|
else {
|
|
float lerpValue = _floatingCursorResetController.value;
|
|
float lerpX = MathUtils.lerpNullableFloat(_lastBoundedOffset.dx, finalPosition.dx, lerpValue);
|
|
float lerpY = MathUtils.lerpNullableFloat(_lastBoundedOffset.dy, finalPosition.dy, lerpValue);
|
|
|
|
renderEditable.setFloatingCursor(FloatingCursorDragState.Update, new Offset(lerpX, lerpY),
|
|
_lastTextPosition, resetLerpValue: lerpValue);
|
|
}
|
|
}
|
|
|
|
void _finalizeEditing(bool shouldUnfocus) {
|
|
if (widget.onEditingComplete != null) {
|
|
widget.onEditingComplete();
|
|
}
|
|
else {
|
|
widget.controller.clearComposing();
|
|
if (shouldUnfocus) {
|
|
widget.focusNode.unfocus();
|
|
}
|
|
}
|
|
|
|
if (widget.onSubmitted != null) {
|
|
widget.onSubmitted(_value.text);
|
|
}
|
|
}
|
|
|
|
void _updateRemoteEditingValueIfNeeded() {
|
|
if (!_hasInputConnection) {
|
|
return;
|
|
}
|
|
|
|
var localValue = _value;
|
|
if (localValue == _receivedRemoteTextEditingValue) {
|
|
return;
|
|
}
|
|
|
|
_textInputConnection.setEditingState(localValue);
|
|
}
|
|
|
|
TextEditingValue _value {
|
|
get { return widget.controller.value; }
|
|
set { widget.controller.value = value; }
|
|
}
|
|
|
|
|
|
bool _hasFocus {
|
|
get { return widget.focusNode.hasFocus; }
|
|
}
|
|
|
|
bool _isMultiline {
|
|
get { return widget.maxLines != 1; }
|
|
}
|
|
|
|
// Calculate the new scroll offset so the cursor remains visible.
|
|
float _getScrollOffsetForCaret(Rect caretRect) {
|
|
float caretStart;
|
|
float caretEnd;
|
|
if (_isMultiline) {
|
|
float lineHeight = renderEditable.preferredLineHeight;
|
|
float caretOffset = (lineHeight - caretRect.height) / 2;
|
|
caretStart = caretRect.top - caretOffset;
|
|
caretEnd = caretRect.bottom + caretOffset;
|
|
}
|
|
else {
|
|
caretStart = caretRect.left;
|
|
caretEnd = caretRect.right;
|
|
}
|
|
|
|
float scrollOffset = _scrollController.offset;
|
|
float viewportExtent = _scrollController.position.viewportDimension;
|
|
if (caretStart < 0.0) {
|
|
scrollOffset += caretStart;
|
|
}
|
|
else if (caretEnd >= viewportExtent) {
|
|
scrollOffset += caretEnd - viewportExtent;
|
|
}
|
|
if (_isMultiline) {
|
|
scrollOffset = scrollOffset.clamp(0.0f, renderEditable.maxScrollExtent);
|
|
}
|
|
return scrollOffset;
|
|
}
|
|
|
|
// Calculates where the `caretRect` would be if `_scrollController.offset` is set to `scrollOffset`.
|
|
Rect _getCaretRectAtScrollOffset(Rect caretRect, float scrollOffset) {
|
|
float offsetDiff = _scrollController.offset - scrollOffset;
|
|
return _isMultiline ? caretRect.translate(0.0f, offsetDiff) : caretRect.translate(offsetDiff, 0.0f);
|
|
}
|
|
|
|
bool _hasInputConnection {
|
|
get { return _textInputConnection != null && _textInputConnection.attached; }
|
|
}
|
|
|
|
void _openInputConnection() {
|
|
if (widget.readOnly) {
|
|
return;
|
|
}
|
|
if (!_hasInputConnection) {
|
|
TextEditingValue localValue = _value;
|
|
_lastFormattedUnmodifiedTextEditingValue = localValue;
|
|
_textInputConnection = TextInput.attach(
|
|
this,
|
|
new TextInputConfiguration(
|
|
inputType: widget.keyboardType,
|
|
obscureText: widget.obscureText,
|
|
autocorrect: widget.autocorrect,
|
|
smartDashesType: widget.smartDashesType,
|
|
smartQuotesType: widget.smartQuotesType,
|
|
enableSuggestions: widget.enableSuggestions,
|
|
inputAction: widget.textInputAction ?? (widget.keyboardType == TextInputType.multiline
|
|
? TextInputAction.newline
|
|
: TextInputAction.done
|
|
),
|
|
textCapitalization: widget.textCapitalization,
|
|
keyboardAppearance: widget.keyboardAppearance.Value
|
|
)
|
|
);
|
|
_textInputConnection.show();
|
|
|
|
_updateSizeAndTransform();
|
|
TextStyle style = widget.style;
|
|
_textInputConnection.setStyle(
|
|
fontFamily: style.fontFamily,
|
|
fontSize: style.fontSize,
|
|
fontWeight: style.fontWeight,
|
|
textDirection: _textDirection.Value,
|
|
textAlign: widget.textAlign
|
|
);
|
|
_textInputConnection.setEditingState(localValue);
|
|
} else {
|
|
_textInputConnection.show();
|
|
}
|
|
}
|
|
void _updateSizeAndTransform() {
|
|
if (_hasInputConnection) {
|
|
Size size = renderEditable.size;
|
|
Matrix4 transform = renderEditable.getTransformTo(null);
|
|
_textInputConnection.setEditableSizeAndTransform(size, transform);
|
|
SchedulerBinding.instance
|
|
.addPostFrameCallback((TimeSpan _) => _updateSizeAndTransform());
|
|
}
|
|
}
|
|
|
|
void _closeInputConnectionIfNeeded() {
|
|
if (_hasInputConnection) {
|
|
_textInputConnection.close();
|
|
_textInputConnection = null;
|
|
_lastFormattedUnmodifiedTextEditingValue = null;
|
|
_receivedRemoteTextEditingValue = null;
|
|
}
|
|
}
|
|
|
|
void _openOrCloseInputConnectionIfNeeded() {
|
|
if (_hasFocus && widget.focusNode.consumeKeyboardToken()) {
|
|
_openInputConnection();
|
|
}
|
|
else if (!_hasFocus) {
|
|
_closeInputConnectionIfNeeded();
|
|
widget.controller.clearComposing();
|
|
}
|
|
}
|
|
public void requestKeyboard() {
|
|
if (_hasFocus) {
|
|
_openInputConnection();
|
|
}
|
|
else {
|
|
widget.focusNode.requestFocus();
|
|
}
|
|
}
|
|
|
|
void _hideSelectionOverlayIfNeeded() {
|
|
_selectionOverlay?.hide();
|
|
_selectionOverlay = null;
|
|
}
|
|
|
|
void _updateOrDisposeSelectionOverlayIfNeeded() {
|
|
if (_selectionOverlay != null) {
|
|
if (_hasFocus) {
|
|
_selectionOverlay.update(_value);
|
|
}
|
|
else {
|
|
_selectionOverlay.dispose();
|
|
_selectionOverlay = null;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
void _handleSelectionChanged(TextSelection selection, RenderEditable renderObject,
|
|
SelectionChangedCause cause) {
|
|
if (!widget.controller.isSelectionWithinTextBounds(selection))
|
|
return;
|
|
widget.controller.selection = selection;
|
|
requestKeyboard();
|
|
|
|
_selectionOverlay?.hide();
|
|
_selectionOverlay = null;
|
|
|
|
if (widget.selectionControls != null && Application.isMobilePlatform && !_unityKeyboard()) {
|
|
_selectionOverlay = new TextSelectionOverlay(
|
|
context: context,
|
|
value: _value,
|
|
debugRequiredFor: widget,
|
|
toolbarLayerLink: _toolbarLayerLink,
|
|
startHandleLayerLink: _startHandleLayerLink,
|
|
endHandleLayerLink: _endHandleLayerLink,
|
|
renderObject: renderObject,
|
|
selectionControls: widget.selectionControls,
|
|
selectionDelegate: this,
|
|
dragStartBehavior: widget.dragStartBehavior,
|
|
onSelectionHandleTapped: widget.onSelectionHandleTapped
|
|
);
|
|
_selectionOverlay.handlesVisible = widget.showSelectionHandles;
|
|
_selectionOverlay.showHandles();
|
|
if (widget.onSelectionChanged != null) {
|
|
widget.onSelectionChanged(selection, cause);
|
|
}
|
|
}
|
|
}
|
|
|
|
bool _textChangedSinceLastCaretUpdate = false;
|
|
Rect _currentCaretRect;
|
|
|
|
void _handleCaretChanged(Rect caretRect) {
|
|
_currentCaretRect = caretRect;
|
|
// If the caret location has changed due to an update to the text or
|
|
// selection, then scroll the caret into view.
|
|
if (_textChangedSinceLastCaretUpdate) {
|
|
_textChangedSinceLastCaretUpdate = false;
|
|
_showCaretOnScreen();
|
|
}
|
|
}
|
|
|
|
// Animation configuration for scrolling the caret back on screen.
|
|
static readonly TimeSpan _caretAnimationDuration = TimeSpan.FromMilliseconds(100);
|
|
static readonly Curve _caretAnimationCurve = Curves.fastOutSlowIn;
|
|
bool _showCaretOnScreenScheduled = false;
|
|
|
|
void _showCaretOnScreen() {
|
|
if (_showCaretOnScreenScheduled) {
|
|
return;
|
|
}
|
|
|
|
_showCaretOnScreenScheduled = true;
|
|
SchedulerBinding.instance.addPostFrameCallback(_ => {
|
|
_showCaretOnScreenScheduled = false;
|
|
if (_currentCaretRect == null || !_scrollController.hasClients) {
|
|
return;
|
|
}
|
|
|
|
float scrollOffsetForCaret = _getScrollOffsetForCaret(_currentCaretRect);
|
|
_scrollController.animateTo(scrollOffsetForCaret,
|
|
duration: _caretAnimationDuration,
|
|
curve: _caretAnimationCurve);
|
|
|
|
Rect newCaretRect = _getCaretRectAtScrollOffset(_currentCaretRect, scrollOffsetForCaret);
|
|
float bottomSpacing = widget.scrollPadding.bottom;
|
|
if (_selectionOverlay?.selectionControls != null) {
|
|
float handleHeight = _selectionOverlay.selectionControls
|
|
.getHandleSize(renderEditable.preferredLineHeight).height;
|
|
float interactiveHandleHeight = Mathf.Max(
|
|
handleHeight,
|
|
kMinInteractiveDimension
|
|
);
|
|
Offset anchor = _selectionOverlay.selectionControls
|
|
.getHandleAnchor(
|
|
TextSelectionHandleType.collapsed,
|
|
renderEditable.preferredLineHeight
|
|
);
|
|
float handleCenter = handleHeight / 2 - anchor.dy;
|
|
bottomSpacing = Mathf.Max(
|
|
handleCenter + interactiveHandleHeight / 2,
|
|
bottomSpacing
|
|
);
|
|
}
|
|
Rect inflatedRect = Rect.fromLTRB(
|
|
newCaretRect.left - widget.scrollPadding.left,
|
|
newCaretRect.top - widget.scrollPadding.top,
|
|
newCaretRect.right + widget.scrollPadding.right,
|
|
newCaretRect.bottom + bottomSpacing
|
|
);
|
|
_editableKey.currentContext.findRenderObject().showOnScreen(
|
|
rect: inflatedRect,
|
|
duration: _caretAnimationDuration,
|
|
curve: _caretAnimationCurve
|
|
);
|
|
});
|
|
}
|
|
|
|
|
|
double _lastBottomViewInset;
|
|
|
|
public void didChangeMetrics() {
|
|
if (_lastBottomViewInset < Window.instance.viewInsets.bottom) {
|
|
_showCaretOnScreen();
|
|
}
|
|
|
|
_lastBottomViewInset = Window.instance.viewInsets.bottom;
|
|
}
|
|
|
|
public void didChangeTextScaleFactor() {
|
|
}
|
|
|
|
public void didChangePlatformBrightness() {
|
|
}
|
|
|
|
public void didChangeLocales(List<Locale> locale) {
|
|
}
|
|
|
|
public Future<bool> didPopRoute() {
|
|
return Future.value(false).to<bool>();
|
|
}
|
|
|
|
public Future<bool> didPushRoute(string route) {
|
|
return Future.value(false).to<bool>();
|
|
}
|
|
|
|
|
|
public void didChangeAccessibilityFeatures() {}
|
|
|
|
|
|
//_WhitespaceDirectionalityFormatter _whitespaceFormatter;
|
|
|
|
void _formatAndSetValue(TextEditingValue value, bool isIMEInput = false) {
|
|
//whitespaceFormatter ??= new _WhitespaceDirectionalityFormatter(textDirection: _textDirection);
|
|
|
|
bool textChanged = _value?.text != value?.text;
|
|
bool isRepeatText = value?.text == _lastFormattedUnmodifiedTextEditingValue?.text;
|
|
bool isRepeatSelection = value?.selection == _lastFormattedUnmodifiedTextEditingValue?.selection;
|
|
bool isRepeatComposing = value?.composing == _lastFormattedUnmodifiedTextEditingValue?.composing;
|
|
|
|
if (!isRepeatText && textChanged && widget.inputFormatters != null && widget.inputFormatters.isNotEmpty()) {
|
|
foreach (TextInputFormatter formatter in widget.inputFormatters) {
|
|
value = formatter.formatEditUpdate(_value, value);
|
|
}
|
|
//value = _whitespaceFormatter.formatEditUpdate(_value, value);
|
|
_lastFormattedValue = value;
|
|
}
|
|
|
|
_value = value;
|
|
|
|
if (isRepeatText && isRepeatSelection && isRepeatComposing && textChanged && _lastFormattedValue != null) {
|
|
_value = _lastFormattedValue;
|
|
}
|
|
|
|
|
|
_updateRemoteEditingValueIfNeeded();
|
|
|
|
if (textChanged && widget.onChanged != null)
|
|
widget.onChanged(value.text);
|
|
_lastFormattedUnmodifiedTextEditingValue = _receivedRemoteTextEditingValue;
|
|
/*
|
|
var textChanged = _value?.text != value?.text || isIMEInput;
|
|
if (textChanged && widget.inputFormatters != null && widget.inputFormatters.isNotEmpty()) {
|
|
foreach (var formatter in widget.inputFormatters) {
|
|
value = formatter.formatEditUpdate(_value, value);
|
|
}
|
|
|
|
_value = value;
|
|
_updateRemoteEditingValueIfNeeded();
|
|
//_updateImePosIfNeed();
|
|
}
|
|
else {
|
|
_value = value;
|
|
}
|
|
|
|
if (textChanged && widget.onChanged != null) {
|
|
widget.onChanged(value.text);
|
|
}*/
|
|
}
|
|
|
|
void _onCursorColorTick() {
|
|
renderEditable.cursorColor =
|
|
widget.cursorColor.withOpacity(_cursorBlinkOpacityController.value);
|
|
_cursorVisibilityNotifier.value = widget.showCursor && _cursorBlinkOpacityController.value > 0;
|
|
}
|
|
|
|
public bool cursorCurrentlyVisible {
|
|
get { return _cursorBlinkOpacityController.value > 0; }
|
|
}
|
|
|
|
public TimeSpan cursorBlinkInterval {
|
|
get { return _kCursorBlinkHalfPeriod; }
|
|
}
|
|
|
|
public TextSelectionOverlay selectionOverlay {
|
|
get { return _selectionOverlay; }
|
|
}
|
|
|
|
int _obscureShowCharTicksPending = 0;
|
|
int _obscureLatestCharIndex;
|
|
|
|
object _cursorTick(object timer) {
|
|
_targetCursorVisibility = !_unityKeyboard() && !_targetCursorVisibility;
|
|
float targetOpacity = _targetCursorVisibility ? 1.0f : 0.0f;
|
|
if (widget.cursorOpacityAnimates) {
|
|
_cursorBlinkOpacityController.animateTo(targetOpacity, curve: Curves.easeOut);
|
|
}
|
|
else {
|
|
_cursorBlinkOpacityController.setValue(targetOpacity);
|
|
}
|
|
|
|
if (_obscureShowCharTicksPending > 0) {
|
|
setState(() => { _obscureShowCharTicksPending--; });
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
object _cursorWaitForStart(object timer) {
|
|
D.assert(_kCursorBlinkHalfPeriod > _fadeDuration);
|
|
_cursorTimer?.cancel();
|
|
_cursorTimer = Timer.periodic(_kCursorBlinkHalfPeriod, _cursorTick);
|
|
return null;
|
|
}
|
|
|
|
void _startCursorTimer() {
|
|
_targetCursorVisibility = true;
|
|
_cursorBlinkOpacityController.setValue(1.0f);
|
|
if (EditableText.debugDeterministicCursor) {
|
|
return;
|
|
}
|
|
|
|
if (widget.cursorOpacityAnimates) {
|
|
_cursorTimer =
|
|
Timer.periodic(_kCursorBlinkWaitForStart, _cursorWaitForStart);
|
|
}
|
|
else {
|
|
_cursorTimer = Timer.periodic(_kCursorBlinkHalfPeriod, _cursorTick);
|
|
}
|
|
}
|
|
|
|
void _stopCursorTimer(bool resetCharTicks = true) {
|
|
_cursorTimer?.cancel();
|
|
_cursorTimer = null;
|
|
_targetCursorVisibility = false;
|
|
_cursorBlinkOpacityController.setValue(0.0f);
|
|
if (EditableText.debugDeterministicCursor) {
|
|
return;
|
|
}
|
|
|
|
if (resetCharTicks) {
|
|
_obscureShowCharTicksPending = 0;
|
|
}
|
|
|
|
if (widget.cursorOpacityAnimates) {
|
|
_cursorBlinkOpacityController.stop();
|
|
_cursorBlinkOpacityController.setValue(0.0f);
|
|
}
|
|
}
|
|
|
|
void _startOrStopCursorTimerIfNeeded() {
|
|
if (_cursorTimer == null && _hasFocus && _value.selection.isCollapsed) {
|
|
_startCursorTimer();
|
|
}
|
|
else if (_cursorTimer != null && (!_hasFocus || !_value.selection.isCollapsed)) {
|
|
_stopCursorTimer();
|
|
}
|
|
}
|
|
|
|
|
|
void _didChangeTextEditingValue() {
|
|
_updateRemoteEditingValueIfNeeded();
|
|
_updateImePosIfNeed();
|
|
_startOrStopCursorTimerIfNeeded();
|
|
_updateOrDisposeSelectionOverlayIfNeeded();
|
|
_textChangedSinceLastCaretUpdate = true;
|
|
setState(() => { });
|
|
}
|
|
|
|
void _handleFocusChanged() {
|
|
_openOrCloseInputConnectionIfNeeded();
|
|
_startOrStopCursorTimerIfNeeded();
|
|
_updateOrDisposeSelectionOverlayIfNeeded();
|
|
if (_hasFocus) {
|
|
WidgetsBinding.instance.addObserver(this);
|
|
_lastBottomViewInset = Window.instance.viewInsets.bottom;
|
|
_showCaretOnScreen();
|
|
if (!_value.selection.isValid) {
|
|
widget.controller.selection = TextSelection.collapsed(offset: _value.text.Length);
|
|
}
|
|
}
|
|
else {
|
|
WidgetsBinding.instance.removeObserver(this);
|
|
_value = new TextEditingValue(text: _value.text);
|
|
}
|
|
|
|
updateKeepAlive();
|
|
}
|
|
|
|
TextDirection? _textDirection {
|
|
get {
|
|
TextDirection? result = widget.textDirection ?? Directionality.of(context);
|
|
D.assert(result != null,
|
|
() =>
|
|
$"{GetType().FullName} created without a textDirection and with no ambient Directionality.");
|
|
return result;
|
|
}
|
|
}
|
|
|
|
public RenderEditable renderEditable {
|
|
get { return (RenderEditable) _editableKey.currentContext.findRenderObject(); }
|
|
}
|
|
|
|
public TextEditingValue textEditingValue {
|
|
get { return _value; }
|
|
set {
|
|
_selectionOverlay?.update(value);
|
|
_formatAndSetValue(value);
|
|
}
|
|
}
|
|
|
|
float _devicePixelRatio {
|
|
get { return MediaQuery.of(context).devicePixelRatio; }
|
|
}
|
|
|
|
public void bringIntoView(TextPosition position) {
|
|
_scrollController.jumpTo(
|
|
_getScrollOffsetForCaret(renderEditable.getLocalRectForCaret(position)));
|
|
}
|
|
|
|
public bool cutEnabled {
|
|
get { return widget.toolbarOptions.cut && !widget.readOnly; }
|
|
}
|
|
public bool copyEnabled {
|
|
get {
|
|
return widget.toolbarOptions.copy;
|
|
}
|
|
}
|
|
public bool pasteEnabled {
|
|
get {
|
|
return widget.toolbarOptions.paste && !widget.readOnly;
|
|
}
|
|
}
|
|
public bool selectAllEnabled {
|
|
get {
|
|
return widget.toolbarOptions.selectAll;
|
|
}
|
|
}
|
|
|
|
public void toggleToolbar() {
|
|
D.assert(_selectionOverlay != null);
|
|
if (_selectionOverlay.toolbarIsVisible) {
|
|
hideToolbar();
|
|
} else {
|
|
showToolbar();
|
|
}
|
|
}
|
|
public bool showToolbar() {
|
|
if (foundation_.kIsWeb) {
|
|
return false;
|
|
}
|
|
|
|
if (_selectionOverlay == null || _selectionOverlay.toolbarIsVisible) {
|
|
return false;
|
|
}
|
|
|
|
_selectionOverlay.showToolbar();
|
|
return true;
|
|
}
|
|
|
|
public void hideToolbar() {
|
|
_selectionOverlay?.hide();
|
|
}
|
|
|
|
public override Widget build(BuildContext context) {
|
|
D.assert(WidgetsD.debugCheckHasMediaQuery(context));
|
|
_focusAttachment.reparent();
|
|
base.build(context);
|
|
|
|
return new Scrollable(
|
|
axisDirection: _isMultiline ? AxisDirection.down : AxisDirection.right,
|
|
controller: _scrollController,
|
|
physics: widget.scrollPhysics,
|
|
dragStartBehavior: widget.dragStartBehavior,
|
|
viewportBuilder: (BuildContext _context, ViewportOffset offset) =>
|
|
new CompositedTransformTarget(
|
|
link: _toolbarLayerLink,
|
|
child: new _Editable(
|
|
key: _editableKey,
|
|
startHandleLayerLink: _startHandleLayerLink,
|
|
endHandleLayerLink: _endHandleLayerLink,
|
|
textSpan: buildTextSpan(),
|
|
value: _value,
|
|
cursorColor: _cursorColor,
|
|
backgroundCursorColor: widget.backgroundCursorColor,
|
|
showCursor: EditableText.debugDeterministicCursor
|
|
? new ValueNotifier<bool>(widget.showCursor)
|
|
: _cursorVisibilityNotifier,
|
|
forceLine: widget.forceLine,
|
|
readOnly: widget.readOnly,
|
|
hasFocus: _hasFocus,
|
|
maxLines: widget.maxLines,
|
|
minLines: widget.minLines,
|
|
expands: widget.expands,
|
|
strutStyle: widget.strutStyle,
|
|
selectionColor: widget.selectionColor,
|
|
textScaleFactor: widget.textScaleFactor ?? MediaQuery.textScaleFactorOf(context),
|
|
textAlign: widget.textAlign,
|
|
textDirection: _textDirection,
|
|
locale: widget.locale,
|
|
textWidthBasis: widget.textWidthBasis,
|
|
obscureText: widget.obscureText,
|
|
autocorrect: widget.autocorrect,
|
|
smartDashesType: widget.smartDashesType,
|
|
smartQuotesType: widget.smartQuotesType,
|
|
enableSuggestions: widget.enableSuggestions,
|
|
offset: offset,
|
|
onSelectionChanged: _handleSelectionChanged,
|
|
onCaretChanged: _handleCaretChanged,
|
|
rendererIgnoresPointer: widget.rendererIgnoresPointer,
|
|
cursorWidth: widget.cursorWidth,
|
|
cursorRadius: widget.cursorRadius,
|
|
cursorOffset: widget.cursorOffset,
|
|
selectionHeightStyle: widget.selectionHeightStyle,
|
|
selectionWidthStyle: widget.selectionWidthStyle,
|
|
paintCursorAboveText: widget.paintCursorAboveText,
|
|
enableInteractiveSelection: widget.enableInteractiveSelection ?? true,
|
|
textSelectionDelegate: this,
|
|
devicePixelRatio: _devicePixelRatio
|
|
|
|
)
|
|
)
|
|
);
|
|
}
|
|
|
|
public TextSpan buildTextSpan() {
|
|
if (widget.obscureText) {
|
|
var text = _value.text;
|
|
if (widget.obscureText) {
|
|
text = new string(RenderEditable.obscuringCharacter, text.Length);
|
|
int o = _obscureShowCharTicksPending > 0 ? _obscureLatestCharIndex : -1;
|
|
if (o >= 0 && o < text.Length) {
|
|
text = text.Substring(0, o) + _value.text.Substring(o, 1) + text.Substring(o + 1);
|
|
}
|
|
}
|
|
return new TextSpan(style: widget.style, text: text);
|
|
}
|
|
|
|
return widget.controller.buildTextSpan(
|
|
style: widget.style,
|
|
withComposing: !widget.readOnly
|
|
);
|
|
}
|
|
|
|
|
|
bool _unityKeyboard() {
|
|
return TouchScreenKeyboard.isSupported && widget.unityTouchKeyboard;
|
|
}
|
|
|
|
Offset _getImePos() {
|
|
if (_hasInputConnection && _textInputConnection.imeRequired()) {
|
|
var localPos = renderEditable.getLocalRectForCaret(_value.selection.basePos).bottomLeft;
|
|
return renderEditable.localToGlobal(localPos);
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
bool _imePosUpdateScheduled = false;
|
|
|
|
void _updateImePosIfNeed() {
|
|
if (!_hasInputConnection || !_textInputConnection.imeRequired()) {
|
|
return;
|
|
}
|
|
|
|
if (_imePosUpdateScheduled) {
|
|
return;
|
|
}
|
|
|
|
_imePosUpdateScheduled = true;
|
|
SchedulerBinding.instance.addPostFrameCallback(_ => {
|
|
_imePosUpdateScheduled = false;
|
|
if (!_hasInputConnection) {
|
|
return;
|
|
}
|
|
|
|
_textInputConnection.setIMEPos(_getImePos());
|
|
});
|
|
}
|
|
|
|
}
|
|
|
|
|
|
class _Editable : LeafRenderObjectWidget {
|
|
public readonly TextSpan textSpan;
|
|
public readonly TextEditingValue value;
|
|
public readonly Color cursorColor;
|
|
public readonly LayerLink startHandleLayerLink;
|
|
public readonly LayerLink endHandleLayerLink;
|
|
public readonly Color backgroundCursorColor;
|
|
public readonly ValueNotifier<bool> showCursor;
|
|
public readonly bool forceLine;
|
|
public readonly bool readOnly;
|
|
public readonly bool hasFocus;
|
|
public readonly int? maxLines;
|
|
public readonly int? minLines;
|
|
public readonly bool expands;
|
|
public readonly StrutStyle strutStyle;
|
|
public readonly Color selectionColor;
|
|
public readonly float textScaleFactor;
|
|
public readonly TextAlign textAlign;
|
|
public readonly TextDirection? textDirection;
|
|
public readonly bool obscureText;
|
|
public readonly TextWidthBasis textWidthBasis;
|
|
public readonly bool autocorrect;
|
|
public readonly SmartDashesType smartDashesType;
|
|
public readonly SmartQuotesType smartQuotesType;
|
|
public readonly bool? enableSuggestions;
|
|
public readonly ViewportOffset offset;
|
|
public readonly SelectionChangedHandler onSelectionChanged;
|
|
public readonly CaretChangedHandler onCaretChanged;
|
|
public readonly bool rendererIgnoresPointer;
|
|
public readonly float? cursorWidth;
|
|
public readonly Radius cursorRadius;
|
|
public readonly Offset cursorOffset;
|
|
public readonly BoxHeightStyle selectionHeightStyle;
|
|
public readonly BoxWidthStyle selectionWidthStyle;
|
|
public readonly bool enableInteractiveSelection;
|
|
public readonly TextSelectionDelegate textSelectionDelegate;
|
|
public readonly bool? paintCursorAboveText;
|
|
public readonly float? devicePixelRatio;
|
|
//public readonly GlobalKeyEventHandlerDelegate globalKeyEventHandler;
|
|
public readonly Locale locale;
|
|
public _Editable(
|
|
Key key = null,
|
|
TextSpan textSpan = null,
|
|
TextEditingValue value = null,
|
|
LayerLink startHandleLayerLink = null,
|
|
LayerLink endHandleLayerLink = null,
|
|
Color cursorColor = null,
|
|
Color backgroundCursorColor = null,
|
|
ValueNotifier<bool> showCursor = null,
|
|
bool forceLine = false,
|
|
bool readOnly = false,
|
|
TextWidthBasis textWidthBasis = TextWidthBasis.parent,
|
|
bool hasFocus = false,
|
|
int? maxLines = null,
|
|
int? minLines = null,
|
|
bool expands = false,
|
|
StrutStyle strutStyle = null,
|
|
Color selectionColor = null,
|
|
float textScaleFactor = 1.0f,
|
|
TextAlign textAlign = TextAlign.start,
|
|
TextDirection? textDirection = null,
|
|
Locale locale = null,
|
|
bool obscureText = false,
|
|
bool autocorrect = false,
|
|
SmartDashesType? smartDashesType = null,
|
|
SmartQuotesType? smartQuotesType = null,
|
|
bool? enableSuggestions = null,
|
|
ViewportOffset offset = null,
|
|
SelectionChangedHandler onSelectionChanged = null,
|
|
CaretChangedHandler onCaretChanged = null,
|
|
bool rendererIgnoresPointer = false,
|
|
float? cursorWidth = null,
|
|
Radius cursorRadius = null,
|
|
Offset cursorOffset = null,
|
|
bool? paintCursorAboveText = null,
|
|
BoxHeightStyle selectionHeightStyle = BoxHeightStyle.tight,
|
|
BoxWidthStyle selectionWidthStyle = BoxWidthStyle.tight,
|
|
bool enableInteractiveSelection = true,
|
|
TextSelectionDelegate textSelectionDelegate = null,
|
|
float? devicePixelRatio = null
|
|
//GlobalKeyEventHandlerDelegate globalKeyEventHandler = null
|
|
) : base(key) {
|
|
this.textSpan = textSpan;
|
|
this.value = value;
|
|
this.startHandleLayerLink = startHandleLayerLink;
|
|
this.endHandleLayerLink = endHandleLayerLink;
|
|
this.cursorColor = cursorColor;
|
|
this.locale = locale;
|
|
this.backgroundCursorColor = backgroundCursorColor;
|
|
this.showCursor = showCursor;
|
|
this.forceLine = forceLine;
|
|
this.readOnly = readOnly;
|
|
this.textWidthBasis = textWidthBasis;
|
|
this.hasFocus = hasFocus;
|
|
this.maxLines = maxLines;
|
|
this.minLines = minLines;
|
|
this.expands = expands;
|
|
this.strutStyle = strutStyle;
|
|
this.selectionColor = selectionColor;
|
|
this.textScaleFactor = textScaleFactor;
|
|
this.textAlign = textAlign;
|
|
this.textDirection = textDirection;
|
|
this.obscureText = obscureText;
|
|
this.autocorrect = autocorrect;
|
|
this.smartDashesType = smartDashesType.Value;
|
|
this.smartQuotesType = smartQuotesType.Value;
|
|
this.enableSuggestions = enableSuggestions;
|
|
this.offset = offset;
|
|
this.onSelectionChanged = onSelectionChanged;
|
|
this.onCaretChanged = onCaretChanged;
|
|
this.rendererIgnoresPointer = rendererIgnoresPointer;
|
|
this.textSelectionDelegate = textSelectionDelegate;
|
|
this.cursorWidth = cursorWidth;
|
|
this.cursorRadius = cursorRadius;
|
|
this.cursorOffset = cursorOffset;
|
|
this.paintCursorAboveText = paintCursorAboveText;
|
|
this.selectionHeightStyle = selectionHeightStyle;
|
|
this.selectionWidthStyle = selectionWidthStyle;
|
|
this.enableInteractiveSelection = enableInteractiveSelection;
|
|
this.devicePixelRatio = devicePixelRatio;
|
|
//this.globalKeyEventHandler = globalKeyEventHandler;
|
|
}
|
|
|
|
public override RenderObject createRenderObject(BuildContext context) {
|
|
return new RenderEditable(
|
|
text: textSpan,
|
|
cursorColor: cursorColor,
|
|
startHandleLayerLink: startHandleLayerLink,
|
|
endHandleLayerLink: endHandleLayerLink,
|
|
backgroundCursorColor: backgroundCursorColor,
|
|
showCursor: showCursor,
|
|
forceLine: forceLine,
|
|
readOnly: readOnly,
|
|
hasFocus: hasFocus,
|
|
maxLines: maxLines,
|
|
minLines: minLines,
|
|
expands: expands,
|
|
strutStyle: strutStyle,
|
|
selectionColor: selectionColor,
|
|
textScaleFactor: textScaleFactor,
|
|
textAlign: textAlign,
|
|
textDirection: textDirection,
|
|
locale: locale ?? Localizations.localeOf(context, nullOk: true),
|
|
selection: value.selection,
|
|
offset: offset,
|
|
onSelectionChanged: onSelectionChanged,
|
|
onCaretChanged: onCaretChanged,
|
|
ignorePointer: rendererIgnoresPointer,
|
|
obscureText: obscureText,
|
|
textWidthBasis: textWidthBasis,
|
|
cursorWidth: cursorWidth ?? 1.0f,
|
|
cursorRadius: cursorRadius,
|
|
cursorOffset: cursorOffset,
|
|
paintCursorAboveText: paintCursorAboveText ?? false,
|
|
selectionHeightStyle: selectionHeightStyle,
|
|
selectionWidthStyle: selectionWidthStyle,
|
|
enableInteractiveSelection: enableInteractiveSelection,
|
|
textSelectionDelegate: textSelectionDelegate,
|
|
devicePixelRatio: devicePixelRatio ?? 1.0f
|
|
);
|
|
}
|
|
|
|
public override void updateRenderObject(BuildContext context, RenderObject renderObject) {
|
|
var edit = (RenderEditable) renderObject;
|
|
edit.text = textSpan;
|
|
edit.cursorColor = cursorColor;
|
|
edit.startHandleLayerLink = startHandleLayerLink;
|
|
edit.endHandleLayerLink = endHandleLayerLink;
|
|
edit.showCursor = showCursor;
|
|
edit.forceLine = forceLine;
|
|
edit.readOnly = readOnly;
|
|
edit.hasFocus = hasFocus;
|
|
edit.maxLines = maxLines;
|
|
edit.minLines = minLines;
|
|
edit.expands = expands;
|
|
edit.strutStyle = strutStyle;
|
|
edit.selectionColor = selectionColor;
|
|
edit.textScaleFactor = textScaleFactor;
|
|
edit.textAlign = textAlign;
|
|
edit.textDirection = textDirection;
|
|
edit.locale = locale ?? Localizations.localeOf(context, nullOk: true);
|
|
edit.selection = value.selection;
|
|
edit.offset = offset;
|
|
edit.onSelectionChanged = onSelectionChanged;
|
|
edit.onCaretChanged = onCaretChanged;
|
|
edit.ignorePointer = rendererIgnoresPointer;
|
|
edit.textWidthBasis = textWidthBasis;
|
|
edit.obscureText = obscureText;
|
|
edit.cursorWidth = cursorWidth ?? 0.0f;
|
|
edit.cursorRadius = cursorRadius;
|
|
edit.cursorOffset = cursorOffset;
|
|
edit.selectionHeightStyle = selectionHeightStyle;
|
|
edit.selectionWidthStyle = selectionWidthStyle;
|
|
edit.textSelectionDelegate = textSelectionDelegate;
|
|
edit.devicePixelRatio = devicePixelRatio ?? 1.0f;
|
|
edit.paintCursorAboveText = paintCursorAboveText ?? false;
|
|
}
|
|
}
|
|
}
|