/// <summary>
/// Enters a group conversation
/// </summary>
/// <param name="sender">A reference to the ListView (i think)</param>
/// <param name="e">A reference to the GroupsContent</param>
public void groupClicked(object sender, ItemClickEventArgs e)
{
GroupsContent group = (GroupsContent)e.ClickedItem;
MessageHistoryViewModel view = group.messageHistoryViewModel;
RightFrameNavigator.Navigate(typeof(MessageHistoryView), view);
}
/// <summary>
/// Updates the frames to display the newly created group
/// <param>groupContent: The newly created GroupsContent</param>
public void displayNewGroup(GroupsContent groupContent)
{
bool frameVisible = LeftFrameNavigator.isSubFrameVisible();
// determine whether to add the group to the group list or journal list
// switch to that list
if (groupContent.group.GroupMembers.Count == 1)
{
journalList.Add(groupContent);
switchToJournal();
}
else
{
convoList.Add(groupContent);
switchToGroups();
}
//display the new conversation in the proper frame
if (frameVisible)
{
LeftFrameNavigator.NavigateSubFrame(typeof(MessageHistoryView), groupContent.messageHistoryViewModel);
RightFrameNavigator.Navigate(typeof(MessageHistoryView), groupContent.messageHistoryViewModel);
RightFrameNavigator.Navigate(typeof(CanvasPage), groupContent);
}
else
{
RightFrameNavigator.Navigate(typeof(MessageHistoryView), groupContent.messageHistoryViewModel);
}
}
protected override void OnNavigatedTo(NavigationEventArgs e)
{
sideBar.Navigate(typeof(GroupsSideBar));
ProfileNavigator.ClearFrame();
LeftFrameNavigator.Navigate(typeof(GroupsView), "");
LeftFrameNavigator.ClearSubFrame();
RightFrameNavigator.Navigate(typeof(MessageHistoryView));
}
private void toggleCanvasView()
{
if (LeftFrameNavigator.isSubFrameVisible())
{
// change the view
LeftFrameNavigator.ClearSubFrame();
RightFrameNavigator.Navigate(typeof(MessageHistoryView), this);
}
else
{
// change the view
LeftFrameNavigator.NavigateSubFrame(typeof(MessageHistoryView), this);
RightFrameNavigator.Navigate(typeof(CanvasPage), group);
}
}
public MainPage()
{
this.InitializeComponent();
// set the sidebar to GroupsSideBar
sideBar.Navigate(typeof(GroupsSideBar));
// set the Frame Navigator instances for navigating through the frames
ProfileNavigator.SetFrame(profileFrame);
LeftFrameNavigator.SetFrame(leftFrame);
RightFrameNavigator.SetFrame(rightFrame);
viewModel = new MainPageViewModel();
this.DataContext = viewModel;
this.NavigationCacheMode = NavigationCacheMode.Required;
}
/// <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);
}
}
}
}
}
private void GroupsButton_Click(object sender, RoutedEventArgs e)
{
LeftFrameNavigator.Navigate(typeof(GroupsView), "groups");
if (LeftFrameNavigator.isSubFrameVisible())
{
LeftFrameNavigator.ClearSubFrame();
RightFrameNavigator.NavigateToLastMessageHistory();
}
if (ProfileNavigator.isFrameVisible())
{
ProfileNavigator.ClearFrame();
ProfileButton.Visibility = Visibility.Visible;
BackButton.Visibility = Visibility.Collapsed;
}
}
public async void messageClicked(ItemClickEventArgs e)
{
MessageContent clickedMessage = (MessageContent)e.ClickedItem;
Uri path = clickedMessage.imageSource;
if (path != null)
{
group.backgroundPath = path.ToString();
if (!LeftFrameNavigator.isSubFrameVisible())
{
LeftFrameNavigator.NavigateSubFrame(typeof(MessageHistoryView), this);
}
RightFrameNavigator.Navigate(typeof(CanvasPage), group);
}
}
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();
}
}
/// <summary>
/// Resets the screen, returns to the Home Screen of the app
/// Left Frame: List of groups
/// Right Frame: Empty screen
/// </summary>
public void resetScreen()
{
LeftFrameNavigator.Navigate(typeof(GroupsView), "groups");
LeftFrameNavigator.ClearSubFrame();
RightFrameNavigator.Navigate(typeof(MessageHistoryView));
}
