private async Task UpdateHTMLPageToShowErrorAsync()
{
var errorData = GenerateErrorMessage(_viewModel.ErrorType);
var jsToEvaluate = "ChangePageContent (" +
$"'{errorData.Item1}'," +
$"'{errorData.Item2}'," +
" true)";
await HybridWebViewControl.EvaluateJavaScriptAsync(jsToEvaluate);
}
private async void HybridWebViewControl_NavigatedAsync(object sender, WebNavigatedEventArgs e)
{
var jsToEvaluate = "isStaticPage()";
var response = await HybridWebViewControl.EvaluateJavaScriptAsync(jsToEvaluate);
if (_viewModel != null && bool.TryParse(response, out _))
{
_viewModel.HideVersionChangeControls();
}
}
public HomePage([Optional] string url)
{
InitializeComponent();
if (Device.RuntimePlatform == Device.iOS && !string.IsNullOrWhiteSpace(url) && url.StartsWith("safe://"))
{
_launchUrl = url;
}
AddressBarEntry.Focused += AddressBarEntryFocused;
AddressBarEntry.Unfocused += AddressBarEntryUnfocused;
AddressBarEntry.TextChanged += AddressBarEntryTextChanged;
AddressBarEntry.Completed += AddressBarTextChangeCompleted;
MessagingCenter.Subscribe <BookmarksModalPageViewModel, string>(
this,
MessageCenterConstants.BookmarkUrl,
(sender, args) =>
{
_viewModel.LoadUrl(args);
});
MessagingCenter.Subscribe <App, string>(
this,
MessageCenterConstants.LoadSafeWebsite,
(sender, args) =>
{
_viewModel.LoadUrl(args);
});
MessagingCenter.Subscribe <MenuPopUpViewModel>(
this,
MessageCenterConstants.ReloadMessage,
(sender) =>
{
_viewModel.IsNavigating = true;
_viewModel.ReloadCommand.Execute(null);
});
MessagingCenter.Subscribe <HomePageViewModel>(
this,
MessageCenterConstants.ShowErrorPage,
async(sender) =>
{
if (((UrlWebViewSource)HybridWebViewControl.Source).Url != _viewModel.WelcomePageUrl)
{
HybridWebViewControl.Source = _viewModel.WelcomePageUrl;
}
else
{
await UpdateHTMLPageToShowErrorAsync();
_viewModel.IsErrorState = false;
if (_viewModel.IsNavigating)
{
_viewModel.IsNavigating = false;
}
}
});
MessagingCenter.Subscribe <HomePageViewModel>(
this,
MessageCenterConstants.UpdateErrorMsg,
async(sender) =>
{
await UpdateHTMLPageToShowErrorAsync();
});
MessagingCenter.Subscribe <App>(
this,
MessageCenterConstants.InitialiseSession,
async(sender) =>
{
await _viewModel.InitilizeSessionAsync();
});
MessagingCenter.Subscribe <App>(
this,
MessageCenterConstants.SessionReconnect,
async(sender) =>
{
if (App.AppSession.IsDisconnected)
{
await ReconnectSessionAsync();
}
});
MessagingCenter.Subscribe <App>(
this,
MessageCenterConstants.UpdateWelcomePageTheme,
async(sender) =>
{
var theme = Xamarin.Essentials.Preferences.Get(Constants.AppThemePreferenceKey, false);
var jsToEvaluate = "ChangeBackgroundColor (" + $"'{theme.ToString()}'" + ")";
await HybridWebViewControl.EvaluateJavaScriptAsync(jsToEvaluate);
});
}
public HomePage([Optional] string url)
{
InitializeComponent();
if (Device.RuntimePlatform == Device.iOS && !string.IsNullOrWhiteSpace(url) && url.StartsWith("safe://"))
{
_launchUrl = url;
}
AddressBarEntry.Focused += AddressBarEntryFocused;
AddressBarEntry.Unfocused += AddressBarEntryUnfocused;
AddressBarEntry.TextChanged += AddressBarEntryTextChanged;
AddressBarEntry.Completed += AddressBarTextChangeCompleted;
MessagingCenter.Subscribe <App, string>(
this,
MessageCenterConstants.LoadSafeWebsite,
(sender, args) =>
{
_viewModel.LoadUrl(args);
});
MessagingCenter.Subscribe <MenuPopUpViewModel>(
this,
MessageCenterConstants.ReloadMessage,
(sender) =>
{
_viewModel.IsNavigating = true;
_viewModel.ReloadCommand.Execute(null);
});
MessagingCenter.Subscribe <HomePageViewModel>(
this,
MessageCenterConstants.ShowErrorPage,
async(sender) =>
{
if (((UrlWebViewSource)HybridWebViewControl.Source).Url != _viewModel.WelcomePageUrl)
{
HybridWebViewControl.Source = _viewModel.WelcomePageUrl;
}
else
{
await UpdateHTMLPageToShowErrorAsync();
_viewModel.IsErrorState = false;
if (_viewModel.IsNavigating)
{
_viewModel.IsNavigating = false;
}
}
});
MessagingCenter.Subscribe <HomePageViewModel>(
this,
MessageCenterConstants.UpdateErrorMsg,
async(sender) =>
{
await UpdateHTMLPageToShowErrorAsync();
});
MessagingCenter.Subscribe <App>(
this,
MessageCenterConstants.InitialiseSession,
async(sender) =>
{
await _viewModel.InitilizeSessionAsync();
});
MessagingCenter.Subscribe <App>(
this,
MessageCenterConstants.SessionReconnect,
async(sender) =>
{
if (App.AppSession.IsDisconnected)
{
await ReconnectSessionAsync();
}
});
MessagingCenter.Subscribe <App>(
this,
MessageCenterConstants.UpdateWelcomePageTheme,
async(sender) =>
{
try
{
var theme = Xamarin.Essentials.Preferences.Get(Constants.AppThemePreferenceKey, false);
var jsToEvaluate = "ChangeBackgroundColor (" + $"'{theme}'" + ")";
await HybridWebViewControl?.EvaluateJavaScriptAsync(jsToEvaluate);
}
catch (Exception ex)
{
Logger.Error(ex);
}
});
MessagingCenter.Subscribe <AuthenticationService>(
this,
MessageCenterConstants.Authenticated,
(sender) =>
{
_viewModel.UpdateAuthenticationState();
});
// Todo: Required to add no internet connection status in the top navigation bar
// MessagingCenter.Subscribe<App>(
// this,
// MessageCenterConstants.NoInternet,
// (sender) =>
// {
// _viewModel.UpdateAuthenticationState(true);
// });
HybridWebViewControl.Navigated += HybridWebViewControl_NavigatedAsync;
}
