From 4085c6cdd5fe743bda998a3b1a9c81ce36514694 Mon Sep 17 00:00:00 2001
From: Pierre HUBERT <pierre.git@communiquons.org>
Date: Mon, 24 Jun 2019 10:48:31 +0200
Subject: [PATCH] Added support of weblink posts

---
 lib/ui/tiles/post_tile.dart | 40 +++++++++++++++++++++++++++++++++++++
 lib/utils/ui_utils.dart     |  6 ++++++
 pubspec.lock                | 14 +++++++++++++
 pubspec.yaml                |  3 +++
 4 files changed, 63 insertions(+)

diff --git a/lib/ui/tiles/post_tile.dart b/lib/ui/tiles/post_tile.dart
index 8f28099..338101b 100644
--- a/lib/ui/tiles/post_tile.dart
+++ b/lib/ui/tiles/post_tile.dart
@@ -23,6 +23,7 @@ import 'package:comunic/utils/navigation_utils.dart';
 import 'package:comunic/utils/post_utils.dart';
 import 'package:comunic/utils/ui_utils.dart';
 import 'package:flutter/material.dart';
+import 'package:url_launcher/url_launcher.dart';
 
 /// Single posts tile
 ///
@@ -166,6 +167,10 @@ class _PostTileState extends State<PostTile> {
         postContent = _buildPostImage();
         break;
 
+      case PostKind.WEB_LINK:
+        postContent = _buildPostWebLink();
+        break;
+
       default:
     }
 
@@ -249,6 +254,41 @@ class _PostTileState extends State<PostTile> {
     );
   }
 
+  Widget _buildPostWebLink() {
+    return Card(
+      color: Color.fromRGBO(0xf7, 0xf7, 0xf7, 1),
+      child: InkWell(
+        onTap: () => launch(widget.post.linkURL),
+        child: Row(
+          children: <Widget>[
+            Padding(
+              padding: const EdgeInsets.only(right: 8.0),
+              child: NetworkImageWidget(
+                url: widget.post.linkImage,
+                width: 70,
+                roundedEdges: false,
+              ),
+            ),
+            Flexible(
+              child: Column(
+                crossAxisAlignment: CrossAxisAlignment.start,
+                children: <Widget>[
+                  Text(htmlDecodeCharacters(widget.post.linkTitle),
+                      style: TextStyle(fontSize: 20.0)),
+                  Text(
+                    widget.post.linkURL,
+                    maxLines: 3,
+                  ),
+                  Text(htmlDecodeCharacters(widget.post.linkDescription))
+                ],
+              ),
+            )
+          ],
+        ),
+      ),
+    );
+  }
+
   /// Build the list of comments
   Widget _buildComments() {
     assert(widget.post.hasComments);
diff --git a/lib/utils/ui_utils.dart b/lib/utils/ui_utils.dart
index fb62682..c077768 100644
--- a/lib/utils/ui_utils.dart
+++ b/lib/utils/ui_utils.dart
@@ -1,6 +1,7 @@
 import 'package:cached_network_image/cached_network_image.dart';
 import 'package:comunic/utils/intl_utils.dart';
 import 'package:flutter/material.dart';
+import 'package:html/parser.dart';
 
 /// User interface utilities
 ///
@@ -171,3 +172,8 @@ Widget smartInputCounterWidgetBuilder(
   @required bool isFocused,
 }) =>
     currentLength > 0 ? Text("$currentLength/$maxLength") : Container();
+
+/// Parse an HTML String to decode special characters
+String htmlDecodeCharacters(String input) {
+  return parse(input).documentElement.text;
+}
diff --git a/pubspec.lock b/pubspec.lock
index 59a5dd6..31eb69b 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -57,6 +57,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.6"
+  csslib:
+    dependency: transitive
+    description:
+      name: csslib
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.16.0"
   cupertino_icons:
     dependency: "direct main"
     description:
@@ -88,6 +95,13 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.0"
+  html:
+    dependency: "direct main"
+    description:
+      name: html
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.14.0+2"
   http:
     dependency: transitive
     description:
diff --git a/pubspec.yaml b/pubspec.yaml
index b95e8f3..dc9c552 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -42,6 +42,9 @@ dependencies:
   # URL launcher is useful to open URL in the phone browser
   url_launcher: ^5.0.2
 
+  # Allows to parse HTML special characters
+  html: ^0.14.0+2
+
 dev_dependencies:
   flutter_test:
     sdk: flutter