From 7de882338da4e3e0be6b06970beeb11bd7a487f2 Mon Sep 17 00:00:00 2001
From: Pierre HUBERT <pierre.git@communiquons.org>
Date: Thu, 16 Apr 2020 10:53:09 +0200
Subject: [PATCH] Parse URLs

---
 lib/ui/widgets/text_widget.dart | 65 ++++++++++++++++++++++++++++++---
 lib/utils/bbcode_parser.dart    |  3 +-
 2 files changed, 61 insertions(+), 7 deletions(-)

diff --git a/lib/ui/widgets/text_widget.dart b/lib/ui/widgets/text_widget.dart
index c8eb115..70f863f 100644
--- a/lib/ui/widgets/text_widget.dart
+++ b/lib/ui/widgets/text_widget.dart
@@ -1,6 +1,8 @@
 import 'package:comunic/utils/bbcode_parser.dart';
+import 'package:comunic/utils/input_utils.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_emoji/flutter_emoji.dart';
+import 'package:url_launcher/url_launcher.dart';
 
 /// Text widget
 ///
@@ -26,12 +28,65 @@ class TextWidget extends StatelessWidget {
   Widget build(BuildContext context) {
     var content = EmojiParser().emojify(this.content);
 
+    // Parse BBcode
     if (this.parseBBcode)
-      return BBCodeParsedWidget(text: content);
-    else
-      return Text(
-        content,
-        style: style,
+      return BBCodeParsedWidget(
+        text: content,
+        parseCallback: (style, text) => _parseLinks(text, style),
       );
+
+    // Just parse link
+    return RichText(
+      text: TextSpan(children: _parseLinks(content, style)),
+    );
+  }
+
+  /// Sub parse function
+  List<InlineSpan> _parseLinks(String text, TextStyle style) {
+    var buff = StringBuffer();
+    final list = new List<InlineSpan>();
+
+    // Change word function
+    final changeWordType = () {
+      list.add(TextSpan(style: style, text: buff.toString()));
+      buff.clear();
+    };
+
+    for (final word in text.replaceAll("\n", " \n ").split(" ")) {
+      // Line break
+      if (word == "\n") {
+        buff.write("\n");
+        continue;
+      }
+
+      // Check if it is an URL
+      if (validateUrl(word)) {
+        changeWordType();
+
+        list.add(
+          WidgetSpan(
+            child: InkWell(
+              child: Text(
+                word,
+                style: style.copyWith(color: Colors.blueAccent),
+              ),
+              onTap: () => launch(word),
+            ),
+          ),
+        );
+
+        buff.write(" ");
+      }
+
+      // Simple word
+      else {
+        buff.write(word);
+        buff.write(" ");
+      }
+    }
+
+    if (buff.isNotEmpty) changeWordType();
+
+    return list;
   }
 }
diff --git a/lib/utils/bbcode_parser.dart b/lib/utils/bbcode_parser.dart
index 33158f9..b339065 100644
--- a/lib/utils/bbcode_parser.dart
+++ b/lib/utils/bbcode_parser.dart
@@ -6,7 +6,7 @@ import 'package:flutter/material.dart';
 
 /// This callback return null if the text has to be left as is or a TextSpan
 /// if it has been sub parsed...
-typedef ParseCallBack = List<TextSpan> Function(TextStyle, String);
+typedef ParseCallBack = List<InlineSpan> Function(TextStyle, String);
 
 class BBCodeParsedWidget extends StatelessWidget {
   final _Element _content;
@@ -241,7 +241,6 @@ class _Element {
 
       if (parsed != null && parsed.length > 0)
         return TextSpan(
-          text: text,
           style: generatedStyle,
           children: parsed,
         );