Files
stream-chat-flutter/packages/stream_chat_flutter/lib/src/extension.dart
T
2021-05-04 17:58:29 +05:30

107 lines
3.7 KiB
Dart

import 'package:characters/characters.dart';
import 'package:file_picker/file_picker.dart';
import 'package:flutter/material.dart';
import 'package:stream_chat_flutter/src/emoji/emoji.dart';
import 'package:stream_chat_flutter/stream_chat_flutter.dart';
final _emojis = Emoji.all();
/// String extension
extension StringExtension on String {
/// Returns the capitalized string
String capitalize() => '${this[0].toUpperCase()}${substring(1)}';
/// Returns whether the string contains only emoji's or not.
///
/// Emojis guidelines
/// 1 to 3 emojis: big size with no text bubble.
/// 4+ emojis or emojis+text: standard size with text bubble.
bool get isOnlyEmoji {
final characters = trim().characters;
if (characters.isEmpty) return false;
if (characters.length > 3) return false;
return characters.every((c) => _emojis.map((e) => e.char).contains(c));
}
}
/// List extension
extension IterableX<T> on Iterable<T> {
/// Insert any item<T> inBetween the list items
List<T> insertBetween(T item) => expand((e) sync* {
yield item;
yield e;
}).skip(1).toList(growable: false);
}
/// Useful extension for [PlatformFile]
extension PlatformFileX on PlatformFile {
/// Converts the [PlatformFile] into [AttachmentFile]
AttachmentFile get toAttachmentFile => AttachmentFile(
path: path,
name: name,
bytes: bytes,
size: size,
);
}
///
extension InputDecorationX on InputDecoration {
///
InputDecoration merge(InputDecoration? other) {
if (other == null) return this;
return copyWith(
icon: other.icon,
labelText: other.labelText,
labelStyle: labelStyle?.merge(other.labelStyle) ?? other.labelStyle,
helperText: other.helperText,
helperStyle: helperStyle?.merge(other.helperStyle) ?? other.helperStyle,
helperMaxLines: other.helperMaxLines,
hintText: other.hintText,
hintStyle: hintStyle?.merge(other.hintStyle) ?? other.hintStyle,
hintTextDirection: other.hintTextDirection,
hintMaxLines: other.hintMaxLines,
errorText: other.errorText,
errorStyle: errorStyle?.merge(other.errorStyle) ?? other.errorStyle,
errorMaxLines: other.errorMaxLines,
floatingLabelBehavior: other.floatingLabelBehavior,
isCollapsed: other.isCollapsed,
isDense: other.isDense,
contentPadding: other.contentPadding,
prefixIcon: other.prefixIcon,
prefix: other.prefix,
prefixText: other.prefixText,
prefixIconConstraints: other.prefixIconConstraints,
prefixStyle: prefixStyle?.merge(other.prefixStyle) ?? other.prefixStyle,
suffixIcon: other.suffixIcon,
suffix: other.suffix,
suffixText: other.suffixText,
suffixStyle: suffixStyle?.merge(other.suffixStyle) ?? other.suffixStyle,
suffixIconConstraints: other.suffixIconConstraints,
counter: other.counter,
counterText: other.counterText,
counterStyle:
counterStyle?.merge(other.counterStyle) ?? other.counterStyle,
filled: other.filled,
fillColor: other.fillColor,
focusColor: other.focusColor,
hoverColor: other.hoverColor,
errorBorder: other.errorBorder,
focusedBorder: other.focusedBorder,
focusedErrorBorder: other.focusedErrorBorder,
disabledBorder: other.disabledBorder,
enabledBorder: other.enabledBorder,
border: other.border,
enabled: other.enabled,
semanticCounterText: other.semanticCounterText,
alignLabelWithHint: other.alignLabelWithHint,
);
}
}
/// Gets text scale factor through context
extension BuildContextX on BuildContext {
// ignore: public_member_api_docs
double get textScaleFactor =>
MediaQuery.maybeOf(this)?.textScaleFactor ?? 1.0;
}