Remove special keyboard handling for text inputs (#57)
This commit is contained in:
Nate Brown
GitHub
parent
2831c84b57
commit
64b056618c
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@ -3,9 +3,7 @@ import 'package:flutter/services.dart';
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import 'package:flutter/widgets.dart';
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import 'package:flutter_platform_widgets/flutter_platform_widgets.dart';
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//TODO: please let us delete this file
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/// A normal TextField or CupertinoTextField that watches for copy, paste, cut, or select all keyboard actions
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/// A normal TextField or CupertinoTextField that looks the same on all platforms
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class SpecialTextField extends StatefulWidget {
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const SpecialTextField(
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{Key key,
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@ -63,15 +61,8 @@ class SpecialTextField extends StatefulWidget {
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}
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class _SpecialTextFieldState extends State<SpecialTextField> {
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FocusNode _focusNode = FocusNode();
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List<TextInputFormatter> formatters;
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@override
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void dispose() {
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_focusNode.dispose();
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super.dispose();
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}
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@override
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void initState() {
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formatters = widget.inputFormatters;
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@ -84,121 +75,43 @@ class _SpecialTextFieldState extends State<SpecialTextField> {
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@override
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Widget build(BuildContext context) {
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return RawKeyboardListener(
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focusNode: _focusNode,
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onKey: _onKey,
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child: PlatformTextField(
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autocorrect: widget.autocorrect,
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minLines: widget.minLines,
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maxLines: widget.maxLines,
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maxLength: widget.maxLength,
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maxLengthEnforcement: widget.maxLengthEnforcement,
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keyboardType: widget.keyboardType,
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keyboardAppearance: widget.keyboardAppearance,
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textInputAction: widget.textInputAction,
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textCapitalization: widget.textCapitalization,
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textAlign: widget.textAlign,
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textAlignVertical: widget.textAlignVertical,
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autofocus: widget.autofocus,
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focusNode: widget.focusNode,
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onChanged: widget.onChanged,
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enabled: widget.enabled,
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onSubmitted: (_) {
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if (widget.nextFocusNode != null) {
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FocusScope.of(context).requestFocus(widget.nextFocusNode);
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}
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},
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expands: widget.expands,
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inputFormatters: formatters,
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material: (_, __) => MaterialTextFieldData(
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decoration: InputDecoration(
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border: InputBorder.none,
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contentPadding: EdgeInsets.zero,
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isDense: true,
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hintText: widget.placeholder,
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counterText: '',
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suffix: widget.suffix)),
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cupertino: (_, __) => CupertinoTextFieldData(
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decoration: BoxDecoration(),
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padding: EdgeInsets.zero,
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placeholder: widget.placeholder,
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suffix: widget.suffix),
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style: widget.style,
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controller: widget.controller));
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}
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_onKey(RawKeyEvent event) {
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// We don't care about key up events
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if (event is RawKeyUpEvent) {
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return;
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}
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if (event.logicalKey == LogicalKeyboardKey.tab) {
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// Handle tab to the next node
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if (widget.nextFocusNode != null) {
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FocusScope.of(context).requestFocus(widget.nextFocusNode);
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}
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return;
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}
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// Handle special keyboard events with control key
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if (event.data.isControlPressed) {
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// Handle paste
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if (event.logicalKey == LogicalKeyboardKey.keyV) {
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Clipboard.getData("text/plain").then((data) {
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// Adjust our clipboard entry to confirm with the leftover space if we have maxLength
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var text = data.text;
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if (widget.maxLength != null && widget.maxLength > 0) {
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var leftover = widget.maxLength - widget.controller.text.length;
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if (leftover < data.text.length) {
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text = text.substring(0, leftover);
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}
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}
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// If maxLength took us to 0 then bail
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if (text.length == 0) {
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return;
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}
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var end = widget.controller.selection.end;
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var start = widget.controller.selection.start;
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// Insert our paste buffer into the selection, which can be 0 selected text (normal caret)
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widget.controller.text = widget.controller.selection.textBefore(widget.controller.text) +
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text +
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widget.controller.selection.textAfter(widget.controller.text);
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// Adjust our caret to be at the end of the pasted contents, need to take into account the size of the selection
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// We may want runes instead of
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end += text.length - (end - start);
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widget.controller.selection = TextSelection(baseOffset: end, extentOffset: end);
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});
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return;
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}
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// Handle select all
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if (event.logicalKey == LogicalKeyboardKey.keyA) {
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widget.controller.selection = TextSelection(baseOffset: 0, extentOffset: widget.controller.text.length);
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return;
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}
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// Handle copy
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if (event.logicalKey == LogicalKeyboardKey.keyC) {
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Clipboard.setData(ClipboardData(text: widget.controller.selection.textInside(widget.controller.text)));
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return;
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}
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// Handle cut
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if (event.logicalKey == LogicalKeyboardKey.keyX) {
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Clipboard.setData(ClipboardData(text: widget.controller.selection.textInside(widget.controller.text)));
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var start = widget.controller.selection.start;
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widget.controller.text = widget.controller.selection.textBefore(widget.controller.text) +
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widget.controller.selection.textAfter(widget.controller.text);
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widget.controller.selection = TextSelection(baseOffset: start, extentOffset: start);
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return;
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}
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}
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return PlatformTextField(
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autocorrect: widget.autocorrect,
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minLines: widget.minLines,
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maxLines: widget.maxLines,
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maxLength: widget.maxLength,
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maxLengthEnforcement: widget.maxLengthEnforcement,
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keyboardType: widget.keyboardType,
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keyboardAppearance: widget.keyboardAppearance,
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textInputAction: widget.textInputAction,
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textCapitalization: widget.textCapitalization,
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textAlign: widget.textAlign,
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textAlignVertical: widget.textAlignVertical,
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autofocus: widget.autofocus,
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focusNode: widget.focusNode,
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onChanged: widget.onChanged,
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enabled: widget.enabled,
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onSubmitted: (_) {
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if (widget.nextFocusNode != null) {
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FocusScope.of(context).requestFocus(widget.nextFocusNode);
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}
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},
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expands: widget.expands,
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inputFormatters: formatters,
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material: (_, __) => MaterialTextFieldData(
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decoration: InputDecoration(
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border: InputBorder.none,
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contentPadding: EdgeInsets.zero,
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isDense: true,
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hintText: widget.placeholder,
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counterText: '',
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suffix: widget.suffix)),
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cupertino: (_, __) => CupertinoTextFieldData(
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decoration: BoxDecoration(),
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padding: EdgeInsets.zero,
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placeholder: widget.placeholder,
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suffix: widget.suffix),
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style: widget.style,
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controller: widget.controller);
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}
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}
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