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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,134 @@ | ||
| import 'package:flutter/gestures.dart'; | ||
| import 'package:flutter/material.dart'; | ||
| import 'package:get/get.dart'; | ||
| import 'package:social_media_app/constants/colors.dart'; | ||
| import 'package:social_media_app/constants/styles.dart'; | ||
| import 'package:social_media_app/helpers/utils.dart'; | ||
|
|
||
| class NxExpandableText extends StatefulWidget { | ||
| const NxExpandableText({ | ||
| super.key, | ||
| required this.text, | ||
| }); | ||
|
|
||
| final String text; | ||
|
|
||
| @override | ||
| NxExpandableTextState createState() => NxExpandableTextState(); | ||
| } | ||
|
|
||
| class NxExpandableTextState extends State<NxExpandableText> { | ||
| String? text; | ||
| bool canExpand = false; | ||
| bool isExpand = false; | ||
|
|
||
| @override | ||
| Widget build(BuildContext context) { | ||
| canExpand = widget.text.length >= 200; | ||
| text = canExpand | ||
| ? (isExpand ? widget.text : widget.text.substring(0, 200)) | ||
| : (widget.text); | ||
|
|
||
| return AnimatedSize( | ||
| duration: const Duration(milliseconds: 400), | ||
| child: canExpand | ||
| ? buildTextWithLinks(text!.trim()) | ||
| : RichText( | ||
| text: TextSpan( | ||
| text: text, | ||
| style: AppStyles.style14Normal.copyWith( | ||
| color: Theme.of(context).textTheme.bodyText1!.color, | ||
| height: 1.25, | ||
| ), | ||
| ), | ||
| ), | ||
| ); | ||
| } | ||
|
|
||
| Text buildTextWithLinks(String textToLink, {String? text}) => Text.rich( | ||
| TextSpan( | ||
| children: [ | ||
| ...linkify(textToLink), | ||
| TextSpan( | ||
| text: isExpand ? ' ...show less' : ' ...show more', | ||
| style: AppStyles.style14Bold.copyWith( | ||
| color: ColorValues.primaryColor, | ||
| ), | ||
| recognizer: TapGestureRecognizer() | ||
| ..onTap = () { | ||
| setState(() { | ||
| isExpand = !isExpand; | ||
| }); | ||
| }, | ||
| ), | ||
| ], | ||
| style: AppStyles.style14Normal.copyWith( | ||
| color: Theme.of(context).textTheme.bodyText1!.color, | ||
| height: 1.25, | ||
| ), | ||
| ), | ||
| ); | ||
| } | ||
|
|
||
| const String urlPattern = | ||
| r"(https?|http)://([-A-Z0-9.]+)(/[-A-Z0-9+&@#/%=~_|!:,.;]*)?(\?[A-Z0-9+&@#/%=~_|!:,.;]*)?"; | ||
| const String emailPattern = r'\S+@\S+'; | ||
| const String phonePattern = r'[\d-]{9,}'; | ||
| final RegExp linkRegExp = RegExp( | ||
| '($urlPattern)|($emailPattern)|($phonePattern)', | ||
| caseSensitive: false); | ||
|
|
||
| WidgetSpan buildLinkComponent(String text, String linkToOpen) => WidgetSpan( | ||
| child: InkWell( | ||
| child: Text( | ||
| text, | ||
| style: AppStyles.style14Normal.copyWith( | ||
| color: ColorValues.primaryColor, | ||
| decoration: TextDecoration.underline, | ||
| ), | ||
| ), | ||
| onTap: () => AppUtils.openUrl(Uri.parse(linkToOpen)), | ||
| ), | ||
| ); | ||
|
|
||
| List<InlineSpan> linkify(String text) { | ||
| final list = <InlineSpan>[]; | ||
| final match = linkRegExp.firstMatch(text); | ||
| if (match == null) { | ||
| list.add( | ||
| TextSpan( | ||
| text: text, | ||
| style: AppStyles.style14Normal.copyWith( | ||
| color: Theme.of(Get.context!).textTheme.bodyText1!.color, | ||
| ), | ||
| ), | ||
| ); | ||
| return list; | ||
| } | ||
|
|
||
| if (match.start > 0) { | ||
| list.add( | ||
| TextSpan( | ||
| text: text.substring(0, match.start), | ||
| style: AppStyles.style14Normal.copyWith( | ||
| color: Theme.of(Get.context!).textTheme.bodyText1!.color, | ||
| ), | ||
| ), | ||
| ); | ||
| } | ||
|
|
||
| final linkText = match.group(0); | ||
| if (linkText!.contains(RegExp(urlPattern, caseSensitive: false))) { | ||
| list.add(buildLinkComponent(linkText, linkText)); | ||
| } else if (linkText.contains(RegExp(emailPattern, caseSensitive: false))) { | ||
| list.add(buildLinkComponent(linkText, 'mailto:$linkText')); | ||
| } else if (linkText.contains(RegExp(phonePattern, caseSensitive: false))) { | ||
| list.add(buildLinkComponent(linkText, 'tel:$linkText')); | ||
| } else { | ||
| throw Exception('Unexpected match: $linkText'); | ||
| } | ||
|
|
||
| list.addAll(linkify(text.substring(match.start + linkText.length))); | ||
|
|
||
| return list; | ||
| } |
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