feat: add recents and images

LICENSE.md

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+### GNU GENERAL PUBLIC LICENSE
+
+Version 3, 29 June 2007
+
+Copyright (C) 2007 Free Software Foundation, Inc.
+<https://fsf.org/>
+
+Everyone is permitted to copy and distribute verbatim copies of this
+license document, but changing it is not allowed.
+
+### Preamble
+
+The GNU General Public License is a free, copyleft license for
+software and other kinds of works.
+
+The licenses for most software and other practical works are designed
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+free software for all its users. We, the Free Software Foundation, use
+the GNU General Public License for most of our software; it applies
+also to any other work released this way by its authors. You can apply
+it to your programs, too.
+
+When we speak of free software, we are referring to freedom, not
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+Developers that use the GNU GPL protect your rights with two steps:
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+
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+
+#### 12. No Surrender of Others' Freedom.
+
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+
+#### 13. Use with the GNU Affero General Public License.
+
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+#### 14. Revised Versions of this License.
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+#### 15. Disclaimer of Warranty.
+
+THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
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+PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+
+#### 17. Interpretation of Sections 15 and 16.
+
+If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+END OF TERMS AND CONDITIONS
+
+### How to Apply These Terms to Your New Programs
+
+If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these
+terms.
+
+To do so, attach the following notices to the program. It is safest to
+attach them to the start of each source file to most effectively state
+the exclusion of warranty; and each file should have at least the
+"copyright" line and a pointer to where the full notice is found.
+
+        <one line to give the program's name and a brief idea of what it does.>
+        Copyright (C) <year>  <name of author>
+
+        This program is free software: you can redistribute it and/or modify
+        it under the terms of the GNU General Public License as published by
+        the Free Software Foundation, either version 3 of the License, or
+        (at your option) any later version.
+
+        This program is distributed in the hope that it will be useful,
+        but WITHOUT ANY WARRANTY; without even the implied warranty of
+        MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+        GNU General Public License for more details.
+
+        You should have received a copy of the GNU General Public License
+        along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper
+mail.
+
+If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+        <program>  Copyright (C) <year>  <name of author>
+        This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+        This is free software, and you are welcome to redistribute it
+        under certain conditions; type `show c' for details.
+
+The hypothetical commands \`show w' and \`show c' should show the
+appropriate parts of the General Public License. Of course, your
+program's commands might be different; for a GUI interface, you would
+use an "about box".
+
+You should also get your employer (if you work as a programmer) or
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary. For more information on this, and how to apply and follow
+the GNU GPL, see <https://www.gnu.org/licenses/>.
+
+The GNU General Public License does not permit incorporating your
+program into proprietary programs. If your program is a subroutine
+library, you may consider it more useful to permit linking proprietary
+applications with the library. If this is what you want to do, use the
+GNU Lesser General Public License instead of this License. But first,
+please read <https://www.gnu.org/licenses/why-not-lgpl.html>.

README.md

@@ -2,9 +2,40 @@
 Access [WikiVoyage](https://en.wikivoyage.org) conveniently from your phone!
 
 ## Roadmap
+*(In no particular order)*
+
 - [ ] Navigation in articles by heading
+- [ ] Settings for reader
+- [ ] Translate UI
+- [ ] Support different WikiVoyage languages
 - [ ] Bookmark articles
 - [ ] Download articles
 - [ ] Download whole countries
 - [ ] Offline download
 - [ ] Translation of articles into different languages
+
+## Contributing
+TODO
+
+## Building
+### Linux
+1. Download the repository with its submodules:
+
+```sh
+git clone https://git.mnau.xyz/hernik/voyagehandbook --recursive
+cd voyagehandbook
+```
+
+2. Install dependencies through flutter wrapper
+
+```sh
+./flutterw pub get
+# check that android is set up correctly through flutter doctor
+./flutterw doctor 
+```
+
+3. Run on your connected device
+
+```sh
+./flutterw run
+```

lib/api/classes.dart

@@ -1,13 +1,30 @@
 import 'package:json_annotation/json_annotation.dart';
 part 'classes.g.dart';
 
+/*
+        Voyage Handbook - The open-source WikiVoyage reader
+        Copyright (C) 2023 Matyáš Caras
+
+        This program is free software: you can redistribute it and/or modify
+        it under the terms of the GNU General Public License as published by
+        the Free Software Foundation, either version 3 of the License.
+
+        This program is distributed in the hope that it will be useful,
+        but WITHOUT ANY WARRANTY; without even the implied warranty of
+        MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+        GNU General Public License for more details.
+
+        You should have received a copy of the GNU General Public License
+        along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
 @JsonSerializable()
 class SearchResponse {
   final int id;
   final String key;
   final String title;
   final String excerpt;
-  final String description;
+  final String? description;
   const SearchResponse(
       this.id, this.key, this.title, this.excerpt, this.description);
 

lib/api/classes.g.dart

@@ -12,7 +12,7 @@ SearchResponse _$SearchResponseFromJson(Map<String, dynamic> json) =>
       json['key'] as String,
       json['title'] as String,
       json['excerpt'] as String,
-      json['description'] as String,
+      json['description'] as String?,
     );
 
 Map<String, dynamic> _$SearchResponseToJson(SearchResponse instance) =>

lib/main.dart

@@ -3,6 +3,23 @@ import 'package:flutter/material.dart';
 import 'package:voyagehandbook/util/color_schemes.g.dart';
 import 'package:voyagehandbook/views/home.dart';
 
+/*
+        Voyage Handbook - The open-source WikiVoyage reader
+        Copyright (C) 2023 Matyáš Caras
+
+        This program is free software: you can redistribute it and/or modify
+        it under the terms of the GNU General Public License as published by
+        the Free Software Foundation, either version 3 of the License.
+
+        This program is distributed in the hope that it will be useful,
+        but WITHOUT ANY WARRANTY; without even the implied warranty of
+        MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+        GNU General Public License for more details.
+
+        You should have received a copy of the GNU General Public License
+        along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
 void main() {
   runApp(const MyApp());
 }
@@ -17,16 +34,11 @@ class MyApp extends StatelessWidget {
       builder: (lightDynamic, darkDynamic) => MaterialApp(
         title: 'Voyage Handbook',
         theme: ThemeData(
-          useMaterial3: true,
+            useMaterial3: true, colorScheme: lightDynamic ?? lightColorScheme),
-          colorScheme: lightDynamic ?? lightColorScheme
-        ),
         darkTheme: ThemeData(
-          useMaterial3: true,
+            useMaterial3: true, colorScheme: darkDynamic ?? darkColorScheme),
-          colorScheme: darkDynamic ?? darkColorScheme
-        ),
         home: const HomeView(),
       ),
-    
     );
   }
 }

lib/util/render.dart

@@ -1,3 +1,4 @@
+import 'package:cached_network_image/cached_network_image.dart';
 import 'package:flutter/material.dart';
 import 'package:html/parser.dart';
 import 'package:html/dom.dart' as dom;
@@ -7,8 +8,8 @@ import 'package:voyagehandbook/util/styles.dart';
 
 final _ignoredTags = ["style", "script"];
 
-/// Used to create [TextSpan] from raw HTML from WM API
+/// Used to create Widgets from raw HTML from WM API
-List<Widget> renderFromPageHTML(RawPage page) {
+ListView renderFromPageHTML(RawPage page, double height, double width) {
   var out = <Widget>[
     const SizedBox(
       height: 10,
@@ -65,13 +66,18 @@ List<Widget> renderFromPageHTML(RawPage page) {
   var sections = document.body!.getElementsByTagName("section");
   for (var sec in sections) {
     if (sec.localName == "section") {
-      out.addAll(_renderSection(sec));
+      out.addAll(_renderSection(sec, height, width));
     }
   }
-  return out;
+  var l = ListView.builder(
+    padding: EdgeInsets.zero,
+    itemBuilder: (c, i) => out[i],
+    itemCount: out.length,
+  );
+  return l;
 }
 
-List<Widget> _renderSection(dom.Element sec) {
+List<Widget> _renderSection(dom.Element sec, double height, double width) {
   var out = <Widget>[];
   // Get Section Title
   var headings = sec.children
@@ -85,7 +91,11 @@ List<Widget> _renderSection(dom.Element sec) {
             height: 10,
           ),
         );
-        out.add(Text(sectionTitle.text, style: PageStyles.h2));
+        out.add(Text(
+          sectionTitle.text,
+          style: PageStyles.h2,
+          textAlign: TextAlign.center,
+        ));
         break;
       case "h3":
         out.add(
@@ -181,8 +191,55 @@ List<Widget> _renderSection(dom.Element sec) {
           ),
         ); // space paragraphs
         break;
+      case "figure":
+
+        /// Image figure
+        var imgs = element.getElementsByTagName("img");
+        if (imgs.isEmpty) break;
+        var img = imgs.first; // get image element
+        if (img.attributes["src"] == null) break;
+        var figcap = element.getElementsByTagName("figcaption"); // get caption
+        String? caption;
+        if (figcap.isNotEmpty) {
+          caption = figcap.first.text; // TODO: handle links
+        }
+        out.add(const SizedBox(
+          height: 10,
+        ));
+        out.add(
+          Container(
+            // TODO: add tap detector to open wikimedia page?
+            width: width * 0.8,
+            height: height * 0.3,
+            foregroundDecoration: BoxDecoration(
+              image: DecorationImage(
+                fit: BoxFit.fitHeight,
+                image: CachedNetworkImageProvider(
+                  img.attributes["src"]!.replaceAll("//", "https://"),
+                ),
+              ),
+            ),
+            //height: height * 0.3,
+          ),
+        ); // load image
+        if (caption != null) {
+          // Add caption when available
+          out.add(
+            const SizedBox(
+              height: 3,
+            ),
+          );
+          out.add(Text(
+            caption,
+            textAlign: TextAlign.center,
+          ));
+        }
+        out.add(const SizedBox(
+          height: 10,
+        ));
+        break;
       case "section":
-        out.addAll(_renderSection(element));
+        out.addAll(_renderSection(element, height, width));
         break;
       default:
         break;

lib/util/storage.dart

@@ -1,3 +1,4 @@
+import 'dart:convert';
 import 'dart:io';
 
 import 'package:path_provider/path_provider.dart';
@@ -5,10 +6,51 @@ import 'package:path_provider/path_provider.dart';
 /// Used to ease up accessing local files
 class StorageAccess {
   /// Get files in `recent` folder, which contains recently opened pages
-  static Future<List<File>> get recent async {
+  static Future<List<Map<String, dynamic>>> get recent async {
     var files =
         Directory("${(await getApplicationDocumentsDirectory()).path}/recent");
     if (!files.existsSync()) files.createSync();
-    return files.listSync().whereType<File>().toList();
+    return files
+        .listSync()
+        .whereType<File>()
+        .toList()
+        .map<Map<String, dynamic>>((e) => jsonDecode(e.readAsStringSync()))
+        .toList();
+  }
+
+  static void addToRecents(String pageName, String pageKey) async {
+    var files =
+        Directory("${(await getApplicationDocumentsDirectory()).path}/recent");
+    if (!files.existsSync()) files.createSync();
+    var content = files.listSync();
+    if (content.length > 4) {
+      // delete last recent
+      // TODO: configurable
+      File? f;
+      for (var file in content) {
+        if (file is Directory) continue;
+        var modi = (await file.stat()).modified;
+        if (f == null || (await f.stat()).modified.isAfter(modi)) {
+          f = file as File;
+        }
+      }
+      f!.deleteSync();
+    }
+
+    var recent = File("${files.path}/${pageName.replaceAll(' ', '_')}");
+    if (recent.existsSync()) {
+      // if recent already exists, simply change date
+      var recentContent = jsonDecode(recent.readAsStringSync());
+      recentContent["date"] = DateTime.now().millisecondsSinceEpoch;
+      recent.writeAsStringSync(jsonEncode(recentContent));
+    } else {
+      // else create files
+      var recentContent = {
+        "date": DateTime.now().millisecondsSinceEpoch,
+        "name": pageName,
+        "key": pageKey
+      };
+      recent.writeAsStringSync(jsonEncode(recentContent));
+    }
   }
 }

lib/views/home.dart

@@ -1,6 +1,8 @@
 import 'package:flutter/material.dart';
 import 'package:voyagehandbook/util/drawer.dart';
 import 'package:voyagehandbook/util/storage.dart';
+import 'package:voyagehandbook/util/styles.dart';
+import 'package:voyagehandbook/views/pageview.dart';
 
 class HomeView extends StatefulWidget {
   const HomeView({super.key});
@@ -10,7 +12,7 @@ class HomeView extends StatefulWidget {
 }
 
 class _HomeViewState extends State<HomeView> {
-  var _recents = [];
+  var _recents = <Widget>[];
   @override
   void initState() {
     super.initState();
@@ -28,14 +30,27 @@ class _HomeViewState extends State<HomeView> {
           width: MediaQuery.of(context).size.width * 0.9,
           child: Column(
             mainAxisAlignment: MainAxisAlignment.center,
-            children: [
+            children: (_recents.isEmpty)
-              (_recents.isEmpty)
+                ? [
-                  ? const Flexible(
+                    const Flexible(
                       child: Text(
                           "You haven't opened anything recently, swipe right and start searching."),
                     )
-                  : const CircularProgressIndicator()
+                  ]
-            ],
+                : _recents
+              ..insert(
+                0,
+                const Text(
+                  "Recent pages",
+                  style: PageStyles.h1,
+                ),
+              )
+              ..insert(
+                1,
+                const SizedBox(
+                  height: 15,
+                ),
+              ),
           ),
         ),
       ),
@@ -43,7 +58,38 @@ class _HomeViewState extends State<HomeView> {
   }
 
   void load() async {
-    _recents = await StorageAccess.recent;
+    var recent = await StorageAccess.recent;
+    if (recent.isEmpty) return;
+    recent.sort((a, b) => DateTime.fromMillisecondsSinceEpoch(a["date"])
+            .isAfter(DateTime.fromMillisecondsSinceEpoch(b["date"]))
+        ? 1
+        : DateTime.fromMillisecondsSinceEpoch(a["date"]).isAtSameMomentAs(
+                DateTime.fromMillisecondsSinceEpoch(b["date"]))
+            ? 0
+            : -1);
+    _recents = [];
+    for (var r in recent) {
+      if (!mounted) return;
+      _recents.add(
+        SizedBox(
+          width: MediaQuery.of(context).size.width * 0.9,
+          height: 50,
+          child: InkWell(
+            onTap: () => Navigator.of(context).push(MaterialPageRoute(
+                builder: (c) =>
+                    ArticleView(pageKey: r["key"], name: r["name"]))),
+            child: Align(
+              alignment: Alignment.center,
+              child: Text(
+                r["name"],
+                style:
+                    const TextStyle(fontWeight: FontWeight.w500, fontSize: 18),
+              ),
+            ),
+          ),
+        ),
+      );
+    }
     setState(() {});
   }
 }

lib/views/pageview.dart

@@ -3,11 +3,13 @@ import 'package:flutter/material.dart';
 import 'package:voyagehandbook/api/wikimedia.dart';
 import 'package:voyagehandbook/util/drawer.dart';
 import 'package:voyagehandbook/util/render.dart';
+import 'package:voyagehandbook/util/storage.dart';
 
 /// Renders a single WikiVoyage article
 class ArticleView extends StatefulWidget {
-  const ArticleView({super.key, required this.pageKey});
+  const ArticleView({super.key, required this.pageKey, required this.name});
   final String pageKey;
+  final String name;
 
   @override
   State<ArticleView> createState() => _ArticleViewState();
@@ -16,11 +18,18 @@ class ArticleView extends StatefulWidget {
 class _ArticleViewState extends State<ArticleView> {
   var _content = <Widget>[];
   @override
-  initState() {
+  didChangeDependencies() {
-    super.initState();
+    super.didChangeDependencies();
+
     loadPage();
   }
 
+  @override
+  void initState() {
+    super.initState();
+    addToRecents();
+  }
+
   @override
   Widget build(BuildContext context) {
     return Scaffold(
@@ -38,6 +47,7 @@ class _ArticleViewState extends State<ArticleView> {
           height: MediaQuery.of(context).size.height,
           width: MediaQuery.of(context).size.width * 0.9,
           child: SingleChildScrollView(
+            physics: const AlwaysScrollableScrollPhysics(),
             child: Column(
               mainAxisAlignment: MainAxisAlignment.center,
               children: _content,
@@ -49,7 +59,20 @@ class _ArticleViewState extends State<ArticleView> {
   }
 
   void loadPage() async {
-    _content = renderFromPageHTML(await WikiApi.getRawPage(widget.pageKey));
+    _content = [
+      SizedBox(
+        width: MediaQuery.of(context).size.width * 0.9,
+        height: MediaQuery.of(context).size.height,
+        child: renderFromPageHTML(
+            await WikiApi.getRawPage(widget.pageKey),
+            MediaQuery.of(context).size.height,
+            MediaQuery.of(context).size.width),
+      )
+    ];
     setState(() {});
   }
+
+  void addToRecents() {
+    StorageAccess.addToRecents(widget.name, widget.pageKey);
+  }
 }

lib/views/search.dart

@@ -116,8 +116,11 @@ class _SearchViewState extends State<SearchView> {
                                           Navigator.of(context).push(
                                             MaterialPageRoute(
                                               builder: (c) => ArticleView(
-                                                  pageKey: _searchResults[index]
+                                                pageKey:
-                                                      .key),
+                                                    _searchResults[index].key,
+                                                name:
+                                                    _searchResults[index].title,
+                                              ),
                                             ),
                                           );
                                         },

pubspec.lock

@@ -105,6 +105,30 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "8.4.4"
+  cached_network_image:
+    dependency: "direct main"
+    description:
+      name: cached_network_image
+      sha256: fd3d0dc1d451f9a252b32d95d3f0c3c487bc41a75eba2e6097cb0b9c71491b15
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.2.3"
+  cached_network_image_platform_interface:
+    dependency: transitive
+    description:
+      name: cached_network_image_platform_interface
+      sha256: bb2b8403b4ccdc60ef5f25c70dead1f3d32d24b9d6117cfc087f496b178594a7
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.0.0"
+  cached_network_image_web:
+    dependency: transitive
+    description:
+      name: cached_network_image_web
+      sha256: b8eb814ebfcb4dea049680f8c1ffb2df399e4d03bf7a352c775e26fa06e02fa0
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.2"
   characters:
     dependency: transitive
     description:
@@ -238,6 +262,22 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.0"
+  flutter_blurhash:
+    dependency: transitive
+    description:
+      name: flutter_blurhash
+      sha256: "05001537bd3fac7644fa6558b09ec8c0a3f2eba78c0765f88912882b1331a5c6"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.7.0"
+  flutter_cache_manager:
+    dependency: transitive
+    description:
+      name: flutter_cache_manager
+      sha256: "32cd900555219333326a2d0653aaaf8671264c29befa65bbd9856d204a4c9fb3"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.3.0"
   flutter_lints:
     dependency: "direct dev"
     description:
@@ -288,6 +328,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "0.15.2"
+  http:
+    dependency: transitive
+    description:
+      name: http
+      sha256: "6aa2946395183537c8b880962d935877325d6a09a2867c3970c05c0fed6ac482"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.13.5"
   http_multi_server:
     dependency: transitive
     description:
@@ -384,6 +432,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.0.4"
+  octo_image:
+    dependency: transitive
+    description:
+      name: octo_image
+      sha256: "107f3ed1330006a3bea63615e81cf637433f5135a52466c7caa0e7152bca9143"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.2"
   package_config:
     dependency: transitive
     description:
@@ -448,6 +504,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.1.5"
+  pedantic:
+    dependency: transitive
+    description:
+      name: pedantic
+      sha256: "67fc27ed9639506c856c840ccce7594d0bdcd91bc8d53d6e52359449a1d50602"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.11.1"
   platform:
     dependency: transitive
     description:
@@ -496,6 +560,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.2.2"
+  rxdart:
+    dependency: transitive
+    description:
+      name: rxdart
+      sha256: "0c7c0cedd93788d996e33041ffecda924cc54389199cde4e6a34b440f50044cb"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.27.7"
   shared_preferences:
     dependency: "direct main"
     description:
@@ -597,6 +669,22 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.9.1"
+  sqflite:
+    dependency: transitive
+    description:
+      name: sqflite
+      sha256: "500d6fec583d2c021f2d25a056d96654f910662c64f836cd2063167b8f1fa758"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.2.6"
+  sqflite_common:
+    dependency: transitive
+    description:
+      name: sqflite_common
+      sha256: "963dad8c4aa2f814ce7d2d5b1da2f36f31bd1a439d8f27e3dc189bb9d26bc684"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.4.3"
   stack_trace:
     dependency: transitive
     description:
@@ -629,6 +717,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.2.0"
+  synchronized:
+    dependency: transitive
+    description:
+      name: synchronized
+      sha256: "33b31b6beb98100bf9add464a36a8dd03eb10c7a8cf15aeec535e9b054aaf04b"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.0.1"
   term_glyph:
     dependency: transitive
     description:
@@ -725,6 +821,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "3.0.5"
+  uuid:
+    dependency: transitive
+    description:
+      name: uuid
+      sha256: "648e103079f7c64a36dc7d39369cabb358d377078a051d6ae2ad3aa539519313"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.0.7"
   vector_math:
     dependency: transitive
     description:

pubspec.yaml

@@ -43,6 +43,7 @@ dependencies:
   dynamic_color: ^1.6.2
   html: ^0.15.2
   url_launcher: ^6.1.10
+  cached_network_image: ^3.2.3
 
 dev_dependencies:
   flutter_test: