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https://gitlab.com/comunic/comunicmobile
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Integrate members screen as a tab
This commit is contained in:
319
lib/ui/screens/group_sections/group_members_screen.dart
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319
lib/ui/screens/group_sections/group_members_screen.dart
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import 'package:comunic/helpers/groups_helper.dart';
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import 'package:comunic/helpers/users_helper.dart';
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import 'package:comunic/lists/group_members_list.dart';
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import 'package:comunic/lists/users_list.dart';
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import 'package:comunic/models/group.dart';
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import 'package:comunic/models/group_membership.dart';
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import 'package:comunic/models/user.dart';
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import 'package:comunic/ui/dialogs/multi_choices_dialog.dart';
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import 'package:comunic/ui/dialogs/pick_user_dialog.dart';
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import 'package:comunic/ui/widgets/account_image_widget.dart';
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import 'package:comunic/ui/widgets/async_screen_widget.dart';
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import 'package:comunic/utils/account_utils.dart';
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import 'package:comunic/utils/intl_utils.dart';
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import 'package:comunic/utils/ui_utils.dart';
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import 'package:flutter/material.dart';
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/// Group members screen
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///
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/// @author Pierre HUBERT
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class GroupMembersSection extends StatefulWidget {
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final int groupID;
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const GroupMembersSection({Key key, this.groupID})
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: assert(groupID != null),
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super(key: key);
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@override
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_GroupMembersSectionState createState() => _GroupMembersSectionState();
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}
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class _GroupMembersSectionState extends State<GroupMembersSection> {
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final _key = GlobalKey<AsyncScreenWidgetState>();
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Group _group;
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GroupMembersList _members;
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UsersList _users;
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Future<void> _refresh() async {
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final group = await GroupsHelper().getSingle(widget.groupID, force: true);
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final members = await GroupsHelper.getMembersList(widget.groupID);
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final users = await UsersHelper().getListWithThrow(members.usersID);
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_group = group;
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_members = members;
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_users = users;
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}
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@override
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Widget build(BuildContext context) => AsyncScreenWidget(
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key: _key,
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onReload: _refresh,
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onBuild: _buildBodyContent,
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errorMessage: tr("Could not load the list of members of this group!"),
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showOldDataWhileUpdating: true,
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);
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Widget _buildBodyContent() {
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return Stack(
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children: [
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ListView(children: _members.map(_buildGroupMemberTile).toList()),
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_buildInvitationFAB()
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],
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);
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}
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Widget _buildGroupMemberTile(GroupMembership membership) {
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final user = _users.getUser(membership.userID);
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return _GroupMembershipTile(
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group: _group,
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membership: membership,
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user: user,
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onUpdated: () => _key.currentState.refresh(),
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);
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}
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Widget _buildInvitationFAB() {
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return Positioned(
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right: 20,
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bottom: 20,
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child: FloatingActionButton(
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onPressed: _inviteMember,
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child: Icon(Icons.add),
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),
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);
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}
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void _inviteMember() async {
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try {
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final userID = await showPickUserDialog(context);
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if (userID == null) return;
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await GroupsHelper.sendInvitation(widget.groupID, userID);
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} catch (e, s) {
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print("Could not invite a user! $e\n$s");
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showSimpleSnack(context, tr("Could not invite a user!"));
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}
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_key.currentState.refresh();
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}
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}
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List<MultiChoiceEntry<GroupMembershipLevel>> get _membershipLevels => [
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MultiChoiceEntry(
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id: GroupMembershipLevel.ADMINISTRATOR,
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title: tr("Administrator"),
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subtitle: tr("Can change members privileges and group settings")),
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MultiChoiceEntry(
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id: GroupMembershipLevel.MODERATOR,
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title: tr("Moderator"),
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subtitle: tr(
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"Can always create posts, invite users and respond to membership request")),
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MultiChoiceEntry(
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id: GroupMembershipLevel.MEMBER,
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title: tr("Member"),
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subtitle: tr("Can access to all group posts")),
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MultiChoiceEntry(
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id: GroupMembershipLevel.PENDING,
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title: tr("Requested"),
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hidden: true,
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),
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MultiChoiceEntry(
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id: GroupMembershipLevel.INVITED,
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title: tr("Invited"),
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hidden: true,
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),
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MultiChoiceEntry(
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id: GroupMembershipLevel.VISITOR,
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title: tr("Visitor"),
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hidden: true,
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),
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];
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class _GroupMembershipTile extends StatefulWidget {
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final Group group;
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final GroupMembership membership;
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final User user;
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final void Function() onUpdated;
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const _GroupMembershipTile({
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Key key,
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@required this.group,
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@required this.membership,
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@required this.user,
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@required this.onUpdated,
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}) : assert(group != null),
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assert(membership != null),
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assert(user != null),
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assert(onUpdated != null),
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super(key: key);
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@override
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__GroupMembershipTileState createState() => __GroupMembershipTileState();
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}
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enum _MemberMenuOptions { CHANGE_LEVEL, DELETE }
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class __GroupMembershipTileState extends State<_GroupMembershipTile> {
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int get groupID => widget.membership.groupID;
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int get memberID => widget.membership.userID;
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bool get _isCurrentUser => widget.membership.userID == userID();
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@override
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Widget build(BuildContext context) {
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return ListTile(
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leading: AccountImageWidget(
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user: widget.user,
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),
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title: Text(widget.user.displayName),
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subtitle: Text(_membershipLevels
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.firstWhere((f) => f.id == widget.membership.level)
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.title),
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trailing: _buildTrailing(),
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);
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}
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Widget _buildTrailing() {
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switch (widget.membership.level) {
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case GroupMembershipLevel.ADMINISTRATOR:
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case GroupMembershipLevel.MODERATOR:
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case GroupMembershipLevel.MEMBER:
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return _buildMemberCase();
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break;
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case GroupMembershipLevel.INVITED:
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return _buildInvitedCase();
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break;
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case GroupMembershipLevel.PENDING:
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return _buildRequestedCase();
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break;
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case GroupMembershipLevel.VISITOR:
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// This case should never happen
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break;
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}
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return null;
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}
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Widget _buildMemberCase() {
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return PopupMenuButton<_MemberMenuOptions>(
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itemBuilder: (c) => [
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// Change membership level
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PopupMenuItem(
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child: Text(tr("Change level")),
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enabled: !_isCurrentUser && widget.group.isAdmin,
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value: _MemberMenuOptions.CHANGE_LEVEL,
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),
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// Remove membership
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PopupMenuItem(
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child: Text(tr("Remove")),
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value: _MemberMenuOptions.DELETE,
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enabled: !_isCurrentUser,
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),
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],
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onSelected: _handleMenu,
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);
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}
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void _handleMenu(_MemberMenuOptions value) {
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switch (value) {
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case _MemberMenuOptions.CHANGE_LEVEL:
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_changeLevel();
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break;
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case _MemberMenuOptions.DELETE:
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_removeMembership();
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break;
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}
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}
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void _changeLevel() async {
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try {
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final newLevel = await showMultiChoicesDialog(
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context: context,
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choices: _membershipLevels,
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defaultChoice: widget.membership.level,
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title: tr("New membership level"),
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);
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if (newLevel == null) return;
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await GroupsHelper.setNewLevel(groupID, memberID, newLevel);
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} catch (e, s) {
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print("Could not change group membership level! $e\n$s");
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showSimpleSnack(context, tr("Could not change group membership level!"));
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}
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widget.onUpdated();
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}
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void _removeMembership() async {
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try {
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if (!await showConfirmDialog(
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context: context,
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message: tr("Do you really want to remove this membership ?")))
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return;
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await GroupsHelper.removeMemberFromGroup(groupID, memberID);
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} catch (e, s) {
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print("Could not remove membership! $e\n$s");
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showSimpleSnack(context, tr("Could not remove this membership!"));
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}
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widget.onUpdated();
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}
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Widget _buildInvitedCase() {
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return MaterialButton(
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onPressed: _cancelMembership,
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child: Text(tr("Cancel").toUpperCase()),
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textColor: Colors.red,
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);
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}
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void _cancelMembership() async {
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try {
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await GroupsHelper.cancelInvitation(groupID, memberID);
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} catch (e, s) {
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print("Could not cancel invitation! $e\n$s");
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showSimpleSnack(context, tr("Could not cancel invitation!"));
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}
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widget.onUpdated();
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}
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Widget _buildRequestedCase() {
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return IntrinsicWidth(
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child: Row(
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children: <Widget>[
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MaterialButton(
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onPressed: () => _respondRequest(false),
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child: Text(tr("Reject").toUpperCase()),
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textColor: Colors.red,
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),
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MaterialButton(
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onPressed: () => _respondRequest(true),
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child: Text(tr("Accept").toUpperCase()),
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textColor: Colors.green,
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)
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],
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));
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}
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void _respondRequest(bool accept) async {
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try {
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await GroupsHelper.respondRequest(groupID, memberID, accept);
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} catch (e, s) {
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print("Could not respond to membership request! $e\n$s");
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showSimpleSnack(context, tr("Could not respond to membership request!"));
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}
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widget.onUpdated();
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}
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}
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