private void UnloadAtIndex(int index)
{
if (index == 0 && EmojisRoot != null)
{
EmojisRoot.Deactivate();
UnloadObject(EmojisRoot);
}
else if (index == 1 && AnimationsRoot != null)
{
var viewModel = AnimationsRoot.DataContext as AnimationDrawerViewModel;
AnimationsRoot.Deactivate();
UnloadObject(AnimationsRoot);
if (viewModel != null)
{
viewModel.Search(string.Empty);
}
}
else if (index == 2 && StickersRoot != null)
{
var viewModel = StickersRoot.DataContext as StickerDrawerViewModel;
StickersRoot.Deactivate();
UnloadObject(StickersRoot);
if (viewModel != null)
{
viewModel.Search(string.Empty);
}
}
}
private void Pivot_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
if (Pivot.SelectedIndex == 0 && EmojisRoot == null)
{
FindName(nameof(Emojis));
EmojisRoot.SetView(_widget);
}
var active = GetActiveDrawer();
foreach (var drawer in GetDrawers())
{
if (drawer == active)
{
drawer.Activate();
}
else
{
drawer?.Deactivate();
}
}
if (ViewModel != null)
{
ViewModel.Settings.Stickers.SelectedTab = active.Tab;
}
}
private void LoadAtIndex(Chat chat, int index, bool unload)
{
if (index == 0)
{
if (unload)
{
UnloadAtIndex(1);
UnloadAtIndex(2);
}
if (EmojisRoot == null)
{
FindName(nameof(EmojisRoot));
EmojisRoot.DataContext = EmojiDrawerViewModel.GetForCurrentView(ViewModel.SessionId);
}
EmojisRoot.Activate(chat);
SettingsService.Current.Stickers.SelectedTab = StickersTab.Emoji;
}
else if (index == 1)
{
if (unload)
{
UnloadAtIndex(0);
UnloadAtIndex(2);
}
if (AnimationsRoot == null)
{
FindName(nameof(AnimationsRoot));
AnimationsRoot.DataContext = AnimationDrawerViewModel.GetForCurrentView(ViewModel.SessionId);
AnimationsRoot.ItemClick = Animations_ItemClick;
AnimationsRoot.ItemContextRequested += (s, args) => AnimationContextRequested?.Invoke(s, args);
}
AnimationsRoot.Activate(chat);
SettingsService.Current.Stickers.SelectedTab = StickersTab.Animations;
}
else if (index == 2)
{
if (unload)
{
UnloadAtIndex(0);
UnloadAtIndex(1);
}
if (StickersRoot == null)
{
FindName(nameof(StickersRoot));
StickersRoot.DataContext = StickerDrawerViewModel.GetForCurrentView(ViewModel.SessionId);
StickersRoot.ItemClick = Stickers_ItemClick;
StickersRoot.ItemContextRequested += (s, args) => StickerContextRequested?.Invoke(s, args);
StickersRoot.ChoosingItem += (s, args) => ChoosingSticker?.Invoke(s, args);
}
StickersRoot.Activate(chat);
SettingsService.Current.Stickers.SelectedTab = StickersTab.Stickers;
}
}
public void SetView(StickersPanelMode mode)
{
_widget = mode;
EmojisRoot?.SetView(mode);
VisualStateManager.GoToState(this, mode == StickersPanelMode.Overlay
? "FilledState"
: mode == StickersPanelMode.Sidebar
? "SidebarState"
: "NarrowState", false);
}
