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