- internal event EventHandler PopCanceled;
-
- [EditorBrowsable(EditorBrowsableState.Never)]
- public void SendOnAppLinkRequestReceived(Uri uri)
- {
- OnAppLinkRequestReceived(uri);
- }
-
- [EditorBrowsable(EditorBrowsableState.Never)]
- public void SendResume()
- {
- s_current = this;
- OnResume();
- }
-
- [EditorBrowsable(EditorBrowsableState.Never)]
- public void SendSleep()
- {
- OnSleep();
- SavePropertiesAsFireAndForget();
- }
-
- [EditorBrowsable(EditorBrowsableState.Never)]
- public Task SendSleepAsync()
- {
- OnSleep();
- return SavePropertiesAsync();
- }
-
- [EditorBrowsable(EditorBrowsableState.Never)]
- public void SendStart()
- {
- OnStart();
- }
-
- async Task<IDictionary<string, object>> GetPropertiesAsync()
- {
- var deserializer = DependencyService.Get<IDeserializer>();
- if (deserializer == null)
- {
- Console.WriteLine("Startup", "No IDeserialzier was found registered");
- return new Dictionary<string, object>(4);
- }
-
- IDictionary<string, object> properties = await deserializer.DeserializePropertiesAsync().ConfigureAwait(false);
- if (properties == null)
- properties = new Dictionary<string, object>(4);
-
- return properties;
- }
-
- internal void OnPageAppearing(Page page)
- => PageAppearing?.Invoke(this, page);
-
- internal void OnPageDisappearing(Page page)
- => PageDisappearing?.Invoke(this, page);
-
- void OnModalPopped(Page modalPage)
- => ModalPopped?.Invoke(this, new ModalPoppedEventArgs(modalPage));
-
- bool OnModalPopping(Page modalPage)
- {
- var args = new ModalPoppingEventArgs(modalPage);
- ModalPopping?.Invoke(this, args);
- return args.Cancel;
- }
-
- void OnModalPushed(Page modalPage)
- => ModalPushed?.Invoke(this, new ModalPushedEventArgs(modalPage));
-
- void OnModalPushing(Page modalPage)
- => ModalPushing?.Invoke(this, new ModalPushingEventArgs(modalPage));
-
- void OnPopCanceled()
- => PopCanceled?.Invoke(this, EventArgs.Empty);
-
- async Task SetPropertiesAsync()
- {
- await SaveSemaphore.WaitAsync();
- try
- {
- await DependencyService.Get<IDeserializer>()?.SerializePropertiesAsync(Properties);
- }
- finally
- {
- SaveSemaphore.Release();
- }
-
- }
-
- class NavigationImpl : NavigationProxy
- {
- readonly Application _owner;
-
- public NavigationImpl(Application owner)
- {
- _owner = owner;
- }
-
- protected override async Task<Page> OnPopModal(bool animated)
- {
- Page modal = ModalStack[ModalStack.Count - 1];
- if (_owner.OnModalPopping(modal))
- {
- _owner.OnPopCanceled();
- return null;
- }
- Page result = await base.OnPopModal(animated);
- result.Parent = null;
- _owner.OnModalPopped(result);
- return result;
- }
-
- protected override async Task OnPushModal(Page modal, bool animated)
- {
- _owner.OnModalPushing(modal);
-
- modal.Parent = _owner;
-
- if (modal.NavigationProxy.ModalStack.Count == 0)
- {
- modal.NavigationProxy.Inner = this;
- await base.OnPushModal(modal, animated);
- }
- else
- {
- await base.OnPushModal(modal, animated);
- modal.NavigationProxy.Inner = this;
- }
-
- _owner.OnModalPushed(modal);
- }
- }
-