feat(gitee): add blob screen

lib/models/gitee.dart

@@ -114,3 +114,11 @@ class GiteeTreeItem {
   factory GiteeTreeItem.fromJson(Map<String, dynamic> json) =>
       _$GiteeTreeItemFromJson(json);
 }
+
+@JsonSerializable(fieldRename: FieldRename.snake)
+class GiteeBlob {
+  String content;
+  GiteeBlob();
+  factory GiteeBlob.fromJson(Map<String, dynamic> json) =>
+      _$GiteeBlobFromJson(json);
+}

lib/models/gitee.g.dart

@@ -191,3 +191,11 @@ Map<String, dynamic> _$GiteeTreeItemToJson(GiteeTreeItem instance) =>
       'sha': instance.sha,
       'size': instance.size,
     };
+
+GiteeBlob _$GiteeBlobFromJson(Map<String, dynamic> json) {
+  return GiteeBlob()..content = json['content'] as String;
+}
+
+Map<String, dynamic> _$GiteeBlobToJson(GiteeBlob instance) => <String, dynamic>{
+      'content': instance.content,
+    };

lib/router.dart

@@ -6,6 +6,7 @@ import 'package:git_touch/screens/bb_issues.dart';
 import 'package:git_touch/screens/bb_pulls.dart';
 import 'package:git_touch/screens/bb_user.dart';
 import 'package:git_touch/screens/code_theme.dart';
+import 'package:git_touch/screens/ge_blob.dart';
 import 'package:git_touch/screens/ge_commits.dart';
 import 'package:git_touch/screens/ge_repo.dart';
 import 'package:git_touch/screens/ge_repos.dart';
@@ -388,6 +389,7 @@ class GiteeRouter {
     GiteeRouter.forks,
     GiteeRouter.commits,
     GiteeRouter.tree,
+    GiteeRouter.blob,
   ];
   static final user = RouterScreen('/:login', (context, p) {
     final login = p['login'].first;
@@ -431,4 +433,15 @@ class GiteeRouter {
           parameters['sha'].first);
     },
   );
+  static final blob = RouterScreen(
+    '/:owner/:name/blob/:sha',
+    (context, parameters) {
+      return GeBlobScreen(
+        parameters['owner'].first,
+        parameters['name'].first,
+        parameters['sha'].first,
+        parameters['path'].first,
+      );
+    },
+  );
 }

lib/screens/ge_blob.dart

@@ -0,0 +1,32 @@
+import 'package:flutter/material.dart';
+import 'package:git_touch/models/auth.dart';
+import 'package:git_touch/models/gitee.dart';
+import 'package:git_touch/scaffolds/refresh_stateful.dart';
+import 'package:git_touch/widgets/action_entry.dart';
+import 'package:git_touch/widgets/app_bar_title.dart';
+import 'package:git_touch/widgets/blob_view.dart';
+import 'package:provider/provider.dart';
+
+class GeBlobScreen extends StatelessWidget {
+  final String owner;
+  final String name;
+  final String sha;
+  final String path;
+  GeBlobScreen(this.owner, this.name, this.sha, this.path);
+
+  @override
+  Widget build(BuildContext context) {
+    return RefreshStatefulScaffold<String>(
+      title: AppBarTitle('File'),
+      fetch: () async {
+        final auth = context.read<AuthModel>();
+        final res = await auth.fetchGitee('/repos/$owner/$name/git/blobs/$sha');
+        return GiteeBlob.fromJson(res).content;
+      },
+      action: ActionEntry(iconData: Icons.settings, url: '/choose-code-theme'),
+      bodyBuilder: (content, _) {
+        return BlobView(path, base64Text: content);
+      },
+    );
+  }
+}

lib/screens/ge_tree.dart

@@ -40,9 +40,9 @@ class GeTreeScreen extends StatelessWidget {
                 url: (() {
                   switch (item.type) {
                     case 'tree':
-                      return '/gitee/$owner/$name/tree/${item.sha}';
+                      return '/gitee/$owner/$name/tree/${item.sha}?path=${item.path.urlencode}';
                     case 'blob':
-                      return '/gitee/$owner/$name/blob/${item.sha}';
+                      return '/gitee/$owner/$name/blob/${item.sha}?path=${item.path.urlencode}';
                     default:
                       return null;
                   }