display favicons (fixes #6)

lib/api/api.dart

@@ -8,6 +8,7 @@ import 'package:crypto/crypto.dart';
 part 'feed.dart';
 part 'item.dart';
 part 'group.dart';
+part 'favicon.dart';
 part 'feeds_group.dart';
 part 'cache.dart';
 part 'exceptions.dart';
@@ -103,6 +104,11 @@ class APIRequestBuilder {
     return this;
   }
 
+  APIRequestBuilder withFavicons() {
+    _addArg("favicons");
+    return this;
+  }
+
   /// Mark single item as read, unread, saved, unsaved
   APIRequestBuilder markItem(Item item, ItemMarkType markAs) {
     _addArg('mark=item');
@@ -176,6 +182,16 @@ class APIRequestBuilder {
       }
     }
 
+    if (data.containsKey('favicons')) {
+      List<Favicon> favicons = (data['favicons'] as List<dynamic>)
+          .map((json) => Favicon.fromJSON(api, json))
+          .toList();
+
+      for (var favicon in favicons) {
+        api.cache.favicons.set(favicon.id, favicon);
+      }
+    }
+
     if (data.containsKey('feeds_groups')) {
       List<FeedsGroup> feedsGroups = (data['feeds_groups'] as List<dynamic>)
           .map((json) => FeedsGroup.fromJSON(api, json))

lib/api/cache.dart

@@ -7,18 +7,21 @@ class APICache {
   late final ItemCache items;
   late final ObjectCache<int, Feed> feeds;
   late final ObjectCache<int, Group> groups;
+  late final ObjectCache<int, Favicon> favicons;
   final List<FeedsGroup> feedsGroups = [];
 
   APICache(this.api) {
     items = ItemCache(api);
     feeds = ObjectCache(api);
     groups = ObjectCache(api);
+    favicons = ObjectCache(api);
   }
 
   void clear() {
     items._items.clear();
     feeds._items.clear();
     groups._items.clear();
+    favicons._items.clear();
     feedsGroups.clear();
   }
 }

lib/api/favicon.dart

@@ -0,0 +1,23 @@
+part of fever_api;
+
+class Favicon {
+  FeverAPI api;
+  late int id;
+
+  /// base64 encoded image data; prefixed by image type. Example:
+  /// `image/gif;base64,R0lGODlhAQABAIAAAObm5gAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==`
+  late String data;
+
+  Favicon(
+    this.api,
+    {
+      required this.id,
+      required this.data,
+    }
+  );
+
+  Favicon.fromJSON(this.api, Map<String, dynamic> json) {
+    id = toInt(json['id']);
+    data = json['data'];
+  }
+}

lib/main.dart

@@ -100,6 +100,7 @@ class _MyHomePageState extends State<MyHomePage> {
         .request()
         .withFeeds()
         .withGroups()
+        .withFavicons()
         .withItems()
         .sinceId(0)
         .execute();
@@ -139,9 +140,8 @@ class _MyHomePageState extends State<MyHomePage> {
   @override
   Widget build(BuildContext context) {
     var loggedIn = widget.api.loggedIn();
-    var posts = widget.api.cache.items.getAll().values.where(
-      (element) => _feedFilter.isEmpty || _feedFilter.contains(element.feedId)
-    );
+    var posts = widget.api.cache.items.getAll().values.where((element) =>
+        _feedFilter.isEmpty || _feedFilter.contains(element.feedId));
 
     var savedPosts = posts.where((element) => element.isSaved);
     var unreadPosts = posts.where((element) => !element.isRead);
@@ -260,11 +260,9 @@ class _MyHomePageState extends State<MyHomePage> {
                     ),
                     PopupMenuItem(
                       value: "filter",
-                      child: Text(
-                        _feedFilter.isEmpty
+                      child: Text(_feedFilter.isEmpty
                           ? "Filter..."
-                          : "Filter (${_feedFilter.length}/${widget.api.cache.feeds.size})"
-                      ),
+                          : "Filter (${_feedFilter.length}/${widget.api.cache.feeds.size})"),
                       onTap: () {
                         Future.delayed(
                           Duration.zero,

lib/widgets/homepage_post.dart

@@ -1,3 +1,5 @@
+import 'dart:convert';
+
 import 'package:feet/pages/article.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
@@ -20,6 +22,8 @@ class _HomepagePostState extends State<HomepagePost> {
   @override
   Widget build(BuildContext context) {
     var post = widget.post;
+    var favicon = post.api.cache.favicons.get(post.feedId);
+
     return Container(
       margin: const EdgeInsets.symmetric(vertical: 6.0, horizontal: 8.0),
       decoration: BoxDecoration(
@@ -69,9 +73,25 @@ class _HomepagePostState extends State<HomepagePost> {
             child: Column(
               crossAxisAlignment: CrossAxisAlignment.start,
               children: [
-                Text(post.title,
-                    style: Theme.of(context).textTheme.titleMedium,
-                    overflow: TextOverflow.ellipsis),
+                Row(
+                  children: [
+                    favicon?.data != null
+                        ? Container(
+                          margin: const EdgeInsets.fromLTRB(0, 0, 6, 4),
+                          child: Image.memory(
+                            base64Decode(favicon!.data.split(',')[1]),
+                            width: 20,
+                            height: 20,
+                          ),
+                        )
+                        : Container(),
+                    Expanded(
+                      child: Text(post.title,
+                        style: Theme.of(context).textTheme.titleMedium,
+                        overflow: TextOverflow.ellipsis),
+                    ),
+                  ],
+                ),
                 ClipRRect(
                   clipBehavior: Clip.antiAlias,
                   child: Row(