Create new conversations

lib/helpers/conversations_helper.dart

@@ -8,6 +8,7 @@ import 'package:comunic/models/api_request.dart';
 import 'package:comunic/models/api_response.dart';
 import 'package:comunic/models/conversation.dart';
 import 'package:comunic/models/conversation_message.dart';
+import 'package:comunic/models/conversation_settings.dart';
 import 'package:comunic/models/new_conversation_message.dart';
 import 'package:comunic/utils/account_utils.dart';
 import 'package:meta/meta.dart';
@@ -24,6 +25,27 @@ class ConversationsHelper {
   final ConversationMessagesDatabaseHelper _conversationMessagesDatabaseHelper =
       ConversationMessagesDatabaseHelper();
 
+  /// Create a new conversation
+  ///
+  /// Return the ID of the newly created conversation or -1 in case of failure
+  Future<int> createConversation(ConversationSettings settings) async {
+
+    final response = await APIRequest(
+      uri: "conversations/create",
+      needLogin: true,
+      args: {
+        "name" : settings.hasName ? settings.name : "false",
+        "follow" : settings.following ? "true" : "false",
+        "users": settings.members.join(",")
+      }
+    ).exec();
+
+    if(response.code != 200) return -1;
+
+    return response.getObject()["conversationID"];
+
+  }
+
   /// Download the list of conversations from the server
   Future<ConversationsList> downloadList() async {
     final response =

lib/models/conversation_settings.dart

@@ -0,0 +1,27 @@
+import 'package:meta/meta.dart';
+
+/// Conversation settings model
+///
+/// Use this model to create / update a conversation
+///
+/// @author Pierre HUBERT
+
+class ConversationSettings {
+  /// Set the ID to 0 if not required
+  final int id;
+  final String name;
+  final bool following;
+  final List<int> members;
+
+  ConversationSettings({
+    @required this.id,
+    @required this.name,
+    @required this.following,
+    @required this.members,
+  })  : assert(members != null && members.length > 0),
+        assert(following != null);
+
+  bool get hasName => name != null && name.length > 0;
+
+  bool get hasId => id != null & id > 0;
+}

lib/ui/routes/create_conversation_route.dart

@@ -0,0 +1,20 @@
+import 'package:comunic/ui/screens/update_conversation_screen.dart';
+import 'package:comunic/utils/intl_utils.dart';
+import 'package:flutter/material.dart';
+
+/// Create a new conversation route
+///
+/// @author Pierre HUBERT
+
+class CreateConversationRoute extends StatelessWidget {
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: Text(tr("Create a conversation")),
+      ),
+
+      body: UpdateConversationScreen(),
+    );
+  }
+}

lib/ui/screens/conversations_list_screen.dart

@@ -3,6 +3,7 @@ import 'package:comunic/helpers/conversations_helper.dart';
 import 'package:comunic/helpers/users_helper.dart';
 import 'package:comunic/lists/conversations_list.dart';
 import 'package:comunic/ui/routes/conversation_route.dart';
+import 'package:comunic/ui/routes/create_conversation_route.dart';
 import 'package:comunic/ui/tiles/conversation_tile.dart';
 import 'package:comunic/utils/intl_utils.dart';
 import 'package:comunic/utils/ui_utils.dart';
@@ -52,7 +53,7 @@ class _ConversationScreenState extends State<ConversationsListScreen> {
 
     //Get the list of conversations
     var list;
-    if(cached)
+    if (cached)
       list = await _conversationsHelper.getCachedList();
     else
       list = await _conversationsHelper.downloadList();
@@ -90,12 +91,20 @@ class _ConversationScreenState extends State<ConversationsListScreen> {
   }
 
   /// Open a conversation
-  void _openConversation(BuildContext context, int conversationId){
-    Navigator.of(context).push(MaterialPageRoute(builder: (c){
-      return ConversationRoute(conversationID: conversationId,);
+  void _openConversation(BuildContext context, int conversationId) {
+    Navigator.of(context).push(MaterialPageRoute(builder: (c) {
+      return ConversationRoute(
+        conversationID: conversationId,
+      );
     }));
   }
 
+  /// Create a new conversation
+  void _createConversation(BuildContext context) {
+    Navigator.of(context)
+        .push(MaterialPageRoute(builder: (c) => CreateConversationRoute()));
+  }
+
   @override
   Widget build(BuildContext context) {
     if (_error == LoadErrorLevel.MAJOR) return _buildErrorCard();
@@ -116,7 +125,9 @@ class _ConversationScreenState extends State<ConversationsListScreen> {
                   return ConversationTile(
                     conversation: _list.elementAt(index),
                     usersList: _list.users,
-                    onOpen: (c){_openConversation(context, c.id);},
+                    onOpen: (c) {
+                      _openConversation(context, c.id);
+                    },
                   );
                 },
                 itemCount: _list.length,
@@ -124,6 +135,18 @@ class _ConversationScreenState extends State<ConversationsListScreen> {
             ),
           ],
         ),
+
+        // Add conversation button
+        Positioned(
+          right: 20.0,
+          bottom: 20.0,
+          child: FloatingActionButton(
+            onPressed: () => _createConversation(context),
+            child: Icon(Icons.add),
+          ),
+        ),
+
+        // Loading indicator
         Positioned(
           top: 8.0,
           left: 0.0,

lib/ui/screens/update_conversation_screen.dart

@@ -0,0 +1,132 @@
+import 'package:comunic/helpers/conversations_helper.dart';
+import 'package:comunic/lists/users_list.dart';
+import 'package:comunic/models/conversation_settings.dart';
+import 'package:comunic/ui/routes/conversation_route.dart';
+import 'package:comunic/ui/tiles/simple_user_tile.dart';
+import 'package:comunic/ui/widgets/pick_user_widget.dart';
+import 'package:comunic/utils/intl_utils.dart';
+import 'package:flutter/material.dart';
+
+/// Create / Update conversation screen
+///
+/// @author Pierre HUBERT
+
+enum _MembersMenuChoices { REMOVE }
+
+class UpdateConversationScreen extends StatefulWidget {
+  @override
+  State<StatefulWidget> createState() => _UpdateConversationScreen();
+}
+
+class _UpdateConversationScreen extends State<UpdateConversationScreen> {
+  TextEditingController _nameController = TextEditingController();
+  UsersList _members = UsersList();
+  bool _followConversation = true;
+
+  @override
+  Widget build(BuildContext context) {
+    return Container(
+      padding: EdgeInsets.all(8.0),
+      child: Column(
+        children: <Widget>[
+          // Conversation name
+          TextField(
+            controller: _nameController,
+            decoration: InputDecoration(
+                labelText: tr("Conversation name (optionnal)"),
+                alignLabelWithHint: true),
+          ),
+
+          // Add a member to the conversation
+          PickUserWidget(
+            resetOnChoose: true,
+            keepFocusOnChoose: true,
+            label: tr("Add member"),
+            onSelectUser: (user) => setState(() {
+                  if (!_members.contains(user)) _members.add(user);
+                }),
+          ),
+
+          //Conversation members
+          Container(
+            child: _members.length == 0
+                ? null
+                : Flexible(
+                    child: ListView.builder(
+                      itemCount: _members.length,
+                      itemBuilder: (b, i) {
+                        return SimpleUserTile(
+                          user: _members[i],
+                          trailing: PopupMenuButton<_MembersMenuChoices>(
+                            onSelected: (choice) =>
+                                _membersMenuItemSelected(i, choice),
+                            itemBuilder: (c) =>
+                                <PopupMenuEntry<_MembersMenuChoices>>[
+                                  PopupMenuItem(
+                                    child: Text(tr("Remove")),
+                                    value: _MembersMenuChoices.REMOVE,
+                                  )
+                                ],
+                          ),
+                        );
+                      },
+                    ),
+                  ),
+          ),
+
+          // Follow conversation ?
+          Row(
+            children: <Widget>[
+              Switch(
+                value: _followConversation,
+                onChanged: (b) => setState(() {
+                      _followConversation = b;
+                    }),
+              ),
+              Text(tr("Follow conversation"))
+            ],
+          ),
+
+          // Submit button
+          RaisedButton(
+            onPressed: _members.length < 1 ? null : _submitForm,
+            child: Text(tr("Create the conversation")),
+          )
+        ],
+      ),
+    );
+  }
+
+  /// An option of the members menu has been selected
+  void _membersMenuItemSelected(int index, _MembersMenuChoices choice) {
+    if (choice == null) return;
+
+    if (choice == _MembersMenuChoices.REMOVE)
+      return setState(() {
+        _members.removeAt(index);
+      });
+  }
+
+  /// Submit the conversation
+  Future<void> _submitForm() async {
+    final settings = ConversationSettings(
+      id: 0,
+      name: _nameController.text,
+      following: _followConversation,
+      members: _members.usersID,
+    );
+
+    // Create the conversation
+    final conversationID = await ConversationsHelper().createConversation(settings);
+
+    // Check for errors
+    if(conversationID < 1)
+      return Scaffold.of(context).showSnackBar(
+          SnackBar(content: Text(tr("Could not create the conversation!")), duration: Duration(seconds: 1),));
+
+    // Open the conversation
+    Navigator.of(context).pushReplacement(MaterialPageRoute(
+      builder: (c) => ConversationRoute(conversationID: conversationID,)
+    ));
+  }
+}

lib/ui/tiles/simple_user_tile.dart

@@ -13,8 +13,9 @@ typedef OnUserTap = void Function(User);
 class SimpleUserTile extends StatelessWidget {
   final User user;
   final OnUserTap onTap;
+  final Widget trailing;
 
-  const SimpleUserTile({Key key, this.user, this.onTap})
+  const SimpleUserTile({Key key, this.user, this.onTap, this.trailing})
       : assert(user != null),
         super(key: key);
 
@@ -26,6 +27,7 @@ class SimpleUserTile extends StatelessWidget {
         user: user,
       ),
       title: Text(user.fullName),
+      trailing: trailing,
     );
   }
 }

lib/ui/widgets/pick_user_widget.dart

@@ -2,7 +2,6 @@ import 'package:comunic/helpers/search_helper.dart';
 import 'package:comunic/lists/users_list.dart';
 import 'package:comunic/models/user.dart';
 import 'package:comunic/ui/tiles/simple_user_tile.dart';
-import 'package:comunic/utils/intl_utils.dart';
 import 'package:flutter/material.dart';
 
 /// Pick user widget
@@ -16,9 +15,20 @@ typedef OnSelectUserCallback = void Function(User);
 
 class PickUserWidget extends StatefulWidget {
   final OnSelectUserCallback onSelectUser;
+  final String label;
+  final bool resetOnChoose;
+  final bool keepFocusOnChoose;
 
-  const PickUserWidget({Key key, @required this.onSelectUser})
+  const PickUserWidget(
+      {Key key,
+      @required this.onSelectUser,
+      @required this.label,
+      this.resetOnChoose = false,
+      this.keepFocusOnChoose = false})
       : assert(onSelectUser != null),
+        assert(label != null),
+        assert(resetOnChoose != null),
+        assert(keepFocusOnChoose != null),
         super(key: key);
 
   @override
@@ -42,8 +52,7 @@ class _PickUserWidgetState extends State<PickUserWidget> {
     _focusNode.addListener(() {
       if (_focusNode.hasFocus) {
         //Check for focus
-        _overlayEntry = _createOverlayEntry();
-        Overlay.of(context).insert(_overlayEntry);
+        //_showOverlay();
       } else {
         //Remove overlay
         _removeOverlay();
@@ -57,7 +66,10 @@ class _PickUserWidgetState extends State<PickUserWidget> {
       focusNode: _focusNode,
       onChanged: (s) => _updateSuggestions(),
       controller: _controller,
-      decoration: InputDecoration(labelText: tr("Select user")),
+      decoration: InputDecoration(
+        labelText: widget.label,
+        alignLabelWithHint: true,
+      ),
     );
   }
 
@@ -87,6 +99,11 @@ class _PickUserWidgetState extends State<PickUserWidget> {
     });
   }
 
+  void _showOverlay() {
+    _overlayEntry = _createOverlayEntry();
+    Overlay.of(context).insert(_overlayEntry);
+  }
+
   void _removeOverlay() {
     if (_overlayEntry != null) {
       _overlayEntry.remove();
@@ -96,22 +113,36 @@ class _PickUserWidgetState extends State<PickUserWidget> {
 
   /// This method get called each time the input value is updated
   Future<void> _updateSuggestions() async {
-    if (_controller.value.text.length == 0) return;
+    if (_controller.value.text.length == 0) return _removeOverlay();
 
     final results = await _searchHelper.searchUser(_controller.value.text);
 
     if (results == null) return;
 
     _suggestions = results;
-    if (_overlayEntry != null) _overlayEntry.markNeedsBuild();
+    if (_overlayEntry != null)
+      _overlayEntry.markNeedsBuild();
+    else
+      _showOverlay();
   }
 
   /// Method called each time a user is tapped (selected)
   void _userTapped(User user) {
-    _controller.text = user.fullName;
+    // Hide overlay
     _removeOverlay();
-    _focusNode.unfocus();
 
+    // Unfocus if required
+    if (!widget.keepFocusOnChoose) {
+      _focusNode.unfocus();
+    }
+
+    //Check if name has to remain in input
+    if (widget.resetOnChoose) {
+      _controller.text = "";
+    } else
+      _controller.text = user.fullName;
+
+    //Callback
     widget.onSelectUser(user);
   }
 }