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fix issue hnvn#19: Add hour and minute formatter
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,14 +1,14 @@ | ||
| #!/bin/sh | ||
| # This is a generated file; do not edit or check into version control. | ||
| export "FLUTTER_ROOT=/Users/hahung/Developer/flutter" | ||
| export "FLUTTER_APPLICATION_PATH=/Users/hahung/Developer/Workspace/flutter/flutter_pattern_formatter/example" | ||
| export "FLUTTER_ROOT=/Users/loritombuta/development/flutter" | ||
| export "FLUTTER_APPLICATION_PATH=/Users/loritombuta/Documents/GitHub/flutter_pattern_formatter/example" | ||
| export "COCOAPODS_PARALLEL_CODE_SIGN=true" | ||
| export "FLUTTER_TARGET=/Users/hahung/Developer/Workspace/flutter/flutter_pattern_formatter/example/lib/main.dart" | ||
| export "FLUTTER_TARGET=/Users/loritombuta/Documents/GitHub/flutter_pattern_formatter/example/lib/main.dart" | ||
| export "FLUTTER_BUILD_DIR=build" | ||
| export "FLUTTER_BUILD_NAME=1.0.0" | ||
| export "FLUTTER_BUILD_NUMBER=1" | ||
| export "DART_DEFINES=RkxVVFRFUl9XRUJfQVVUT19ERVRFQ1Q9dHJ1ZQ==,RkxVVFRFUl9XRUJfQ0FOVkFTS0lUX1VSTD1odHRwczovL3d3dy5nc3RhdGljLmNvbS9mbHV0dGVyLWNhbnZhc2tpdC9iNGZiMTEyMTRkZDJkZGE2Y2UwMTJkZDk4ZWE0OThlOWU4YjkxMjYyLw==" | ||
| export "DART_DEFINES=RkxVVFRFUl9XRUJfQVVUT19ERVRFQ1Q9dHJ1ZQ==" | ||
| export "DART_OBFUSCATION=false" | ||
| export "TRACK_WIDGET_CREATION=true" | ||
| export "TREE_SHAKE_ICONS=false" | ||
| export "PACKAGE_CONFIG=/Users/hahung/Developer/Workspace/flutter/flutter_pattern_formatter/example/.dart_tool/package_config.json" | ||
| export "PACKAGE_CONFIG=/Users/loritombuta/Documents/GitHub/flutter_pattern_formatter/example/.dart_tool/package_config.json" |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,30 @@ | ||
| // This is a basic Flutter widget test. | ||
| // | ||
| // To perform an interaction with a widget in your test, use the WidgetTester | ||
| // utility in the flutter_test package. For example, you can send tap and scroll | ||
| // gestures. You can also use WidgetTester to find child widgets in the widget | ||
| // tree, read text, and verify that the values of widget properties are correct. | ||
|
|
||
| import 'package:flutter/material.dart'; | ||
| import 'package:flutter_test/flutter_test.dart'; | ||
|
|
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| import 'package:example/main.dart'; | ||
|
|
||
| void main() { | ||
| testWidgets('Counter increments smoke test', (WidgetTester tester) async { | ||
| // Build our app and trigger a frame. | ||
| await tester.pumpWidget(MyApp()); | ||
|
|
||
| // Verify that our counter starts at 0. | ||
| expect(find.text('0'), findsOneWidget); | ||
| expect(find.text('1'), findsNothing); | ||
|
|
||
| // Tap the '+' icon and trigger a frame. | ||
| await tester.tap(find.byIcon(Icons.add)); | ||
| await tester.pump(); | ||
|
|
||
| // Verify that our counter has incremented. | ||
| expect(find.text('0'), findsNothing); | ||
| expect(find.text('1'), findsOneWidget); | ||
| }); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1 @@ | ||
| const INDEX_NOT_FOUND = -1; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,113 @@ | ||
| import 'dart:math'; | ||
|
|
||
| import 'package:flutter/foundation.dart'; | ||
| import 'package:flutter/services.dart'; | ||
| import 'package:pattern_formatter/consts.dart'; | ||
|
|
||
| class HourMinuteInputFormatter extends TextInputFormatter { | ||
| String _placeholder = '--:--'; | ||
| TextEditingValue? _lastNewValue; | ||
|
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| @override | ||
| TextEditingValue formatEditUpdate( | ||
| TextEditingValue oldValue, TextEditingValue newValue) { | ||
| /// provides placeholder text when user start editing | ||
| if (oldValue.text.isEmpty) { | ||
| oldValue = oldValue.copyWith( | ||
| text: _placeholder, | ||
| ); | ||
| newValue = newValue.copyWith( | ||
| text: _fillInputToPlaceholder(newValue.text), | ||
| ); | ||
| return newValue; | ||
| } | ||
|
|
||
| /// nothing changes, nothing to do | ||
| if (newValue == _lastNewValue) { | ||
| return oldValue; | ||
| } | ||
| _lastNewValue = newValue; | ||
|
|
||
| int offset = newValue.selection.baseOffset; | ||
|
|
||
| /// restrict user's input within the length of date form | ||
| if (offset > 5) { | ||
| return oldValue; | ||
| } | ||
|
|
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| if (oldValue.text == newValue.text && oldValue.text.length > 0) { | ||
| return newValue; | ||
| } | ||
|
|
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| final String oldText = oldValue.text; | ||
| final String newText = newValue.text; | ||
| String? resultText; | ||
|
|
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| /// handle user editing, there're two cases: | ||
| /// 1. user add new digit: replace '-' at cursor's position by user's input. | ||
| /// 2. user delete digit: replace digit at cursor's position by '-' | ||
| int index = _indexOfDifference(newText, oldText); | ||
| if (oldText.length < newText.length) { | ||
| /// add new digit | ||
| String newChar = newText[index]; | ||
| if (index == 2) { | ||
| index++; | ||
| offset++; | ||
| } | ||
| resultText = oldText.replaceRange(index, index + 1, newChar); | ||
| if (offset == 2) { | ||
| offset++; | ||
| } | ||
| } else if (oldText.length > newText.length) { | ||
| /// delete digit | ||
| if (oldText[index] != ':') { | ||
| resultText = oldText.replaceRange(index, index + 1, '-'); | ||
| if (offset == 3) { | ||
| offset--; | ||
| } | ||
| } else { | ||
| resultText = oldText; | ||
| } | ||
| } | ||
|
|
||
| return oldValue.copyWith( | ||
| text: resultText, | ||
| selection: TextSelection.collapsed(offset: offset), | ||
| composing: defaultTargetPlatform == TargetPlatform.iOS | ||
| ? TextRange(start: 0, end: 0) | ||
| : TextRange.empty, | ||
| ); | ||
| } | ||
|
|
||
| int _indexOfDifference(String? cs1, String? cs2) { | ||
| if (cs1 == cs2) { | ||
| return INDEX_NOT_FOUND; | ||
| } | ||
| if (cs1 == null || cs2 == null) { | ||
| return 0; | ||
| } | ||
| int i; | ||
| for (i = 0; i < cs1.length && i < cs2.length; ++i) { | ||
| if (cs1[i] != cs2[i]) { | ||
| break; | ||
| } | ||
| } | ||
| if (i < cs2.length || i < cs1.length) { | ||
| return i; | ||
| } | ||
| return INDEX_NOT_FOUND; | ||
| } | ||
|
|
||
| String _fillInputToPlaceholder(String? input) { | ||
| if (input == null || input.isEmpty) { | ||
| return _placeholder; | ||
| } | ||
| String result = _placeholder; | ||
| final index = [0, 1, 3, 4]; | ||
| final length = min(index.length, input.length); | ||
| for (int i = 0; i < length; i++) { | ||
| result = result.replaceRange(index[i], index[i] + 1, input[i]); | ||
| } | ||
| return result; | ||
| } | ||
| } |
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