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using System;
using Xamarin.Forms.CustomAttributes;
using Xamarin.Forms.Internals;
#if UITEST
using NUnit.Framework;
#endif
namespace Xamarin.Forms.Controls.Issues
{
[Preserve(AllMembers = true)]
[Issue(IssueTracker.Bugzilla, 40333, "[Android] IllegalStateException: Recursive entry to executePendingTransactions", PlatformAffected.Android)]
public class Bugzilla40333 : TestNavigationPage
{
const string StartNavPageTestId = "StartNavPageTest";
const string OpenMasterId = "OpenMaster";
const string StartTabPageTestId = "StartTabPageTest";
const string StillHereId = "3 Still Here";
const string ClickThisId = "2 Click This";
protected override void Init()
{
var navButton = new Button { Text = "Test With NavigationPage", AutomationId = StartNavPageTestId };
navButton.Clicked += (sender, args) => { PushAsync(new _40333MDP(false)); };
var tabButton = new Button { Text = "Test With TabbedPage", AutomationId = StartTabPageTestId };
tabButton.Clicked += (sender, args) => { PushAsync(new _40333MDP(true)); };
var content = new ContentPage {
Content = new StackLayout {
Children = { navButton, tabButton }
}
};
PushAsync(content);
}
[Preserve(AllMembers = true)]
public class _40333MDP : TestMasterDetailPage
{
readonly bool _showTabVersion;
public _40333MDP(bool showTabVersion)
{
_showTabVersion = showTabVersion;
}
protected override void Init()
{
if (_showTabVersion)
{
Master = new NavigationPage(new _40333TabPusher("Root")) { Title = "MasterNav" };
Detail = new TabbedPage() { Title = "DetailNav", Children = { new _40333DetailPage("T1") } };
}
else
{
Master = new NavigationPage(new _40333NavPusher("Root")) { Title = "MasterNav" };
Detail = new NavigationPage(new _40333DetailPage("Detail") { Title = "DetailPage" }) { Title = "DetailNav" };
}
}
[Preserve(AllMembers = true)]
public class _40333DetailPage : ContentPage
{
public _40333DetailPage(string title)
{
Title = title;
var openMaster = new Button {
Text = "Open Master",
AutomationId = OpenMasterId
};
openMaster.Clicked += (sender, args) => ((MasterDetailPage)Parent.Parent).IsPresented = true;
Content = new StackLayout() {
Children = { new Label { Text = "Detail Text" }, openMaster }
};
}
}
[Preserve(AllMembers = true)]
public class _40333NavPusher : ContentPage
{
readonly ListView _listView = new ListView();
public _40333NavPusher(string title)
{
Title = title;
_listView.ItemTemplate = new DataTemplate(() =>
{
var lbl = new Label();
lbl.SetBinding(Label.TextProperty, ".");
lbl.AutomationId = lbl.Text;
var result = new ViewCell
{
View = new StackLayout
{
Orientation = StackOrientation.Horizontal,
Children =
{
lbl
}
}
};
return result;
});
_listView.ItemsSource = new[] { "1", ClickThisId, StillHereId };
_listView.ItemTapped += OnItemTapped;
Content = new StackLayout {
Children = { _listView }
};
}
async void OnItemTapped(object sender, EventArgs e)
{
var masterNav = ((MasterDetailPage)this.Parent.Parent).Master.Navigation;
var newTitle = $"{Title}.{_listView.SelectedItem}";
await masterNav.PushAsync(new _40333NavPusher(newTitle));
}
protected override async void OnAppearing()
{
base.OnAppearing();
var newPage = new _40333DetailPage(Title);
var detailNav = ((MasterDetailPage)this.Parent.Parent).Detail.Navigation;
var currentRoot = detailNav.NavigationStack[0];
detailNav.InsertPageBefore(newPage, currentRoot);
await detailNav.PopToRootAsync();
}
}
[Preserve(AllMembers = true)]
public class _40333TabPusher : ContentPage
{
readonly ListView _listView = new ListView();
public _40333TabPusher(string title)
{
Title = title;
_listView.ItemTemplate = new DataTemplate(() => {
var lbl = new Label();
lbl.SetBinding(Label.TextProperty, ".");
lbl.AutomationId = lbl.Text;
var result = new ViewCell {
View = new StackLayout {
Orientation = StackOrientation.Horizontal,
Children =
{
lbl
}
}
};
return result;
});
_listView.ItemsSource = new[] { "1", ClickThisId, StillHereId };
_listView.ItemTapped += OnItemTapped;
Content = new StackLayout {
Children = { _listView }
};
}
async void OnItemTapped(object sender, EventArgs e)
{
var masterNav = ((MasterDetailPage)this.Parent.Parent).Master.Navigation;
var newTitle = $"{Title}.{_listView.SelectedItem}";
await masterNav.PushAsync(new _40333TabPusher(newTitle));
}
protected override void OnAppearing()
{
base.OnAppearing();
var newPage = new _40333DetailPage(Title);
var detailTab = (TabbedPage)((MasterDetailPage)this.Parent.Parent).Detail;
detailTab.Children.Add(newPage);
detailTab.CurrentPage = newPage;
}
}
}
#if UITEST
#if __ANDROID__ // These tests don't work in iOS for unrelated reasons (see https://bugzilla.xamarin.com/show_bug.cgi?id=41085)
[Test]
public void ClickingOnMenuItemInMasterDoesNotCrash_NavPageVersion()
{
RunningApp.Tap(q => q.Marked(StartNavPageTestId));
RunningApp.WaitForElement(q => q.Marked(OpenMasterId));
RunningApp.Tap(q => q.Marked(OpenMasterId));
RunningApp.WaitForElement(q => q.Marked(ClickThisId));
RunningApp.Tap(q => q.Marked(ClickThisId));
RunningApp.WaitForElement(q => q.Marked(StillHereId)); // If the bug isn't fixed, the app will have crashed by now
}
[Test]
public void ClickingOnMenuItemInMasterDoesNotCrash_TabPageVersion()
{
RunningApp.Tap(q => q.Marked(StartTabPageTestId));
RunningApp.WaitForElement(q => q.Marked(OpenMasterId));
RunningApp.Tap(q => q.Marked(OpenMasterId));
RunningApp.WaitForElement(q => q.Marked(ClickThisId));
RunningApp.Tap(q => q.Marked(ClickThisId));
RunningApp.WaitForElement(q => q.Marked(StillHereId)); // If the bug isn't fixed, the app will have crashed by now
}
#endif
#endif
}
}
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