feature：完成Github图床配置页面的配置存储以及读取

lib/model/github_config.dart

@@ -0,0 +1,32 @@
+class GithubConfig {
+  String repositoryName;
+  String branchName;
+  String token;
+  String storagePath;
+  String customDomain;
+
+  GithubConfig(
+      {this.repositoryName,
+      this.branchName,
+      this.token,
+      this.storagePath,
+      this.customDomain});
+
+  GithubConfig.fromJson(Map<String, dynamic> json) {
+    repositoryName = json['repositoryName'];
+    branchName = json['branchName'];
+    token = json['token'];
+    storagePath = json['storagePath'];
+    customDomain = json['customDomain'];
+  }
+
+  Map<String, dynamic> toJson() {
+    final Map<String, dynamic> data = new Map<String, dynamic>();
+    data['repositoryName'] = this.repositoryName;
+    data['branchName'] = this.branchName;
+    data['token'] = this.token;
+    data['storagePath'] = this.storagePath;
+    data['customDomain'] = this.customDomain;
+    return data;
+  }
+}

lib/routers/router_handler.dart

@@ -1,7 +1,7 @@
 import 'package:fluro/fluro.dart';
 import 'package:flutter/material.dart';
 
-import 'package:flutter_picgo/views/app_page/app_page.dart';
+import 'package:flutter_picgo/views/home.dart';
 import 'package:flutter_picgo/views/album_page/album_page.dart';
 import 'package:flutter_picgo/views/pb_setting_page/pb_setting_page.dart';
 import 'package:flutter_picgo/views/pb_setting_page/github_page/github_page.dart';

lib/utils/sql.dart

@@ -12,14 +12,16 @@ class Sql extends BaseModel {
     return await this.query(tableName);
   }
 
-  String getTableName() {
-    return tableName;
+  Future<List> getBySql(String where, List<dynamic> whereArgs) async {
+    return await this.query(tableName, where: where, whereArgs: whereArgs);
   }
 
-  Future<int> delete(String value, String key) async {
-    return await this
-        .db
-        .delete(tableName, where: '$key = ?', whereArgs: [value]);
+  Future<int> rawUpdate(String sql, [List<dynamic> arguments]) async {
+    return await this.db.rawUpdate('UPDATE $tableName SET $sql', arguments);
+  }
+
+  String getTableName() {
+    return tableName;
   }
 
   Future<int> deleteAll() async {

lib/views/home.dart

@@ -1,7 +1,7 @@
 import 'package:flutter/material.dart';
 
-import '../album_page/album_page.dart';
-import '../setting_page/setting_page.dart';
+import 'album_page/album_page.dart';
+import 'setting_page/setting_page.dart';
 
 class AppPage extends StatefulWidget {
 

lib/views/pb_setting_page/github_page/github_page.dart

@@ -1,22 +1,203 @@
 import 'package:flutter/material.dart';
+import 'package:flutter_picgo/model/github_config.dart';
+import 'package:flutter_picgo/views/pb_setting_page/github_page/github_page_presenter.dart';
+import 'package:toast/toast.dart';
 
 class GithubPage extends StatefulWidget {
   @override
   _GithubPageState createState() => _GithubPageState();
 }
 
-class _GithubPageState extends State<GithubPage> {
+class _GithubPageState extends State<GithubPage> implements GithubPageContract {
+  BuildContext _ctx;
+  GithubConfig _config;
+
+  GithubPagePresenter _presenter;
+
+  TextEditingController _repositoryNameController,
+      _branchNameController,
+      _tokenController,
+      _storagePathController,
+      _customDomainController;
+
+  _GithubPageState() {
+    _presenter = GithubPagePresenter(this);
+  }
+
+  final _formKey = GlobalKey<FormState>();
+
+  @override
+  void initState() {
+    super.initState();
+    _presenter.doLoadConfig();
+  }
+
   @override
   Widget build(BuildContext context) {
+    _ctx = context;
+    _repositoryNameController =
+        TextEditingController(text: _config?.repositoryName ?? '');
+    _branchNameController =
+        TextEditingController(text: _config?.branchName ?? '');
+    _tokenController = TextEditingController(text: _config?.token ?? '');
+    _storagePathController =
+        TextEditingController(text: _config?.storagePath ?? '');
+    _customDomainController =
+        TextEditingController(text: _config?.customDomain ?? '');
     return Scaffold(
       appBar: AppBar(
         title: Text('Github图床'),
-      ),
-      body: ListView(
-        children: <Widget>[
-          
+        actions: <Widget>[
+          IconButton(
+            icon: Icon(IconData(0xe62a, fontFamily: 'iconfont')),
+            onPressed: () {
+              _testConfig();
+            },
+          ),
         ],
       ),
+      body: Padding(
+        padding: EdgeInsets.all(10.0),
+        child: ListView(
+          children: <Widget>[
+            Form(
+              key: _formKey,
+              child: Column(
+                children: <Widget>[
+                  TextFormField(
+                    controller: _repositoryNameController,
+                    decoration: new InputDecoration(
+                      labelText: "设定仓库名",
+                      hintText: "例如 hackycy/picture-bed",
+                    ),
+                    keyboardType: TextInputType.text,
+                    validator: (value) {
+                      if (value == null || value == '') {
+                        return '仓库名不能为空';
+                      }
+                      return null;
+                    },
+                  ),
+                  SizedBox(height: 5),
+                  TextFormField(
+                    controller: _branchNameController,
+                    decoration: new InputDecoration(
+                      labelText: "设定分支名",
+                      hintText: "例如 master",
+                    ),
+                    keyboardType: TextInputType.text,
+                    validator: (value) {
+                      if (value == null || value == '') {
+                        return '分支名不能为空';
+                      }
+                      return null;
+                    },
+                  ),
+                  SizedBox(height: 5),
+                  TextFormField(
+                    controller: _tokenController,
+                    obscureText: true,
+                    decoration: new InputDecoration(
+                      labelText: "设定 Token",
+                    ),
+                    keyboardType: TextInputType.text,
+                    validator: (value) {
+                      if (value == null || value == '') {
+                        return 'Token不能为空';
+                      }
+                      return null;
+                    },
+                  ),
+                  SizedBox(height: 5),
+                  TextFormField(
+                    controller: _storagePathController,
+                    obscureText: true,
+                    decoration: new InputDecoration(
+                      labelText: "指定存储路径",
+                    ),
+                    keyboardType: TextInputType.text,
+                  ),
+                  SizedBox(height: 5),
+                  TextFormField(
+                    controller: _customDomainController,
+                    obscureText: true,
+                    decoration: new InputDecoration(
+                      labelText: "设置自定义域名",
+                    ),
+                    keyboardType: TextInputType.text,
+                  )
+                ],
+              ),
+            ),
+            SizedBox(height: 10),
+            Padding(
+              padding: EdgeInsets.all(10.0),
+              child: Row(
+                children: <Widget>[
+                  Expanded(
+                    child: RaisedButton(
+                      color: Theme.of(context).accentColor,
+                      textColor: Colors.white,
+                      child: Text('保存'),
+                      onPressed: () {
+                        _saveConfig();
+                      },
+                    ),
+                  ),
+                  SizedBox(width: 5.0),
+                  Expanded(
+                    child: RaisedButton(
+                      color: Colors.greenAccent,
+                      textColor: Colors.white,
+                      child: Text('设为默认图床'),
+                      onPressed: () {
+                        _setDefaultPB();
+                      },
+                    ),
+                  ),
+                ],
+              ),
+            ),
+          ],
+        ),
+      ),
     );
   }
+
+  void _testConfig() {
+    if (_formKey.currentState.validate()) {}
+  }
+
+  void _saveConfig() {
+    if (_formKey.currentState.validate()) {
+      var config = GithubConfig(
+          repositoryName: _repositoryNameController.text,
+          branchName: _branchNameController.text,
+          token: _tokenController.text,
+          storagePath: _storagePathController.text,
+          customDomain: _customDomainController.text);
+      _presenter.doSaveConfig(config);
+    }
+  }
+
+  void _setDefaultPB() {
+    if (_formKey.currentState.validate()) {}
+  }
+
+  @override
+  loadConfig(GithubConfig config) {
+    setState(() {
+      this._config = config;
+    });
+  }
+
+  @override
+  saveConfigSuccess() {
+    Toast.show("保存成功", context, duration: Toast.LENGTH_SHORT, gravity:  Toast.BOTTOM);
+  }
+
+  @override
+  showError(String errorMsg) {
+    Toast.show(errorMsg, context, duration: Toast.LENGTH_LONG, gravity:  Toast.BOTTOM);
+  }
 }

lib/views/pb_setting_page/github_page/github_page_presenter.dart

@@ -0,0 +1,49 @@
+import 'dart:convert';
+import 'package:flutter_picgo/model/github_config.dart';
+import 'package:flutter_picgo/utils/sql.dart';
+
+abstract class GithubPageContract {
+  loadConfig(GithubConfig config);
+
+  saveConfigSuccess();
+
+  showError(String errorMsg);
+}
+
+class GithubPagePresenter {
+  GithubPageContract _view;
+
+  GithubPagePresenter(this._view);
+
+  doLoadConfig() async {
+    try {
+      var sql = Sql.setTable('pb_setting');
+      var pbsettingRow = (await sql.getBySql('type = ?', ['github']))?.first;
+      if (pbsettingRow != null &&
+          (pbsettingRow["config"] != null || pbsettingRow["config"] != '')) {
+        GithubConfig config = GithubConfig.fromJson(json.decode(pbsettingRow["config"]));
+        _view.loadConfig(config);
+      }
+    } catch (e) {
+      _view.showError('$e');
+    }
+  }
+
+  doSaveConfig(GithubConfig config) async {
+    if (config != null) {
+      try {
+        String jsondata = json.encode(config);
+        var sql = Sql.setTable('pb_setting');
+        int raw = await sql
+            .rawUpdate('config = ? WHERE type = ?', [jsondata, 'github']);
+        if (raw == 1) {
+          _view.saveConfigSuccess();
+        } else {
+          _view.showError('保存失败！请重试！');
+        }
+      } catch (e) {
+        _view.showError('$e');
+      }
+    }
+  }
+}