/// <summary>
/// Creates a popup box to allow the user to change the group name and then sends the
/// updated groupname to the server
/// </summary>
public async Task changeGroupNameAsync(GroupsContent groupContent)
{
if (App.User != null)
{
string currentGroupName = groupContent.group.Name;
Tuple <Boolean, String> tup = await createGroupNameInputDialog();
// User inputs
Boolean cancelled = tup.Item1;
string newGroupName = tup.Item2;
if (!cancelled && newGroupName != "")
{
GroupChat updatedGroup = await renameGroupChat(groupContent.group, newGroupName);
// Display message to user if the name change failed (no server)
if (updatedGroup == null)
{
ContentDialog noServerDialog = new ContentDialog()
{
Title = "Cannot change groupname",
Content = "Is your wifi down?",
PrimaryButtonText = "Ok"
};
await ContentDialogHelper.CreateContentDialogAsync(noServerDialog, true);
}
else
{
string members = await getGroupMemberNames(updatedGroup);
GroupsContent updatedContent = new GroupsContent(updatedGroup, members);
updatedContent.updateCanvasFrom(groupContent);
// Preserve ordering
int originalIndex = getGroupsContentIndex(groupContent.group.id);
GroupsList.Remove(groupContent);
GroupsList.Insert(originalIndex, updatedContent);
// if the user is currently looking at the group, update the group content message history
if (RightFrameNavigator.GetLastContext() != null &&
RightFrameNavigator.GetLastContext().Equals(groupContent.messageHistoryViewModel))
{
RightFrameNavigator.Navigate(typeof(MessageHistoryView), updatedContent.messageHistoryViewModel);
}
}
}
}
}
public async void deleteGroup(GroupsContent groupContent)
{
int numMembers = groupContent.group.GroupMembers.Count;
Boolean leaveOrDeleteGroup = false;
// If there are more than 1 members in this group, we leave the chat
if (numMembers > 1)
{
leaveOrDeleteGroup = await createLeaveGroupWarningDialog();
}
// If you are the last member in the group, we delete the group
else
{
leaveOrDeleteGroup = await createDeleteGroupWarningDialog();
}
// Make rest call and refresh gui
if (leaveOrDeleteGroup)
{
var res = await deleteGroupChat(groupContent.group);
GroupsList.Remove(groupContent);
// clear the right frame if the user is currently looking at the deleted group
if (RightFrameNavigator.GetLastContext() != null &&
RightFrameNavigator.GetLastContext().Equals(groupContent.messageHistoryViewModel))
{
RightFrameNavigator.Navigate(typeof(MessageHistoryView));
}
}
// refresh gui
else
{
// Preserve ordering
int originalIndex = getGroupsContentIndex(groupContent.group.id);
GroupsList.Remove(groupContent);
GroupsList.Insert(originalIndex, groupContent);
//retrieveGroupsFromServer();
}
}