public async Task ShellPartWithPopToRoot()
{
Shell shell = new Shell();
var item = CreateShellItem(shellContentRoute: ContentRoute, shellSectionRoute: SectionRoute, shellItemRoute: ItemRoute);
ShellLifeCycleState lifeCycleState = new ShellLifeCycleState(item);
shell.Items.Add(item);
lifeCycleState.AllTrue();
await shell.Navigation.PushAsync(new ContentPage());
await shell.Navigation.PushAsync(new ContentPage());
await shell.Navigation.PushAsync(new ContentPage());
await shell.Navigation.PushAsync(new ContentPage());
Assert.IsFalse(lifeCycleState.PageAppearing);
Assert.IsFalse(lifeCycleState.ContentAppearing);
Assert.IsTrue(lifeCycleState.SectionAppearing);
Assert.IsTrue(lifeCycleState.ItemAppearing);
await shell.Navigation.PopToRootAsync();
lifeCycleState.AllTrue();
}
public async Task PagePushModal()
{
Shell shell = new Shell();
var item = CreateShellItem(shellContentRoute: ContentRoute, shellSectionRoute: SectionRoute, shellItemRoute: ItemRoute);
ShellLifeCycleState lifeCycleState = new ShellLifeCycleState(item);
shell.Items.Add(item);
ContentPage page = new ContentPage();
bool appearing = false;
page.Appearing += (_, __) => appearing = true;
page.Disappearing += (_, __) => appearing = false;
await shell.Navigation.PushModalAsync(page);
Assert.IsTrue(appearing);
lifeCycleState.AllFalse();
await shell.Navigation.PopModalAsync();
Assert.IsFalse(appearing);
lifeCycleState.AllTrue();
}
public async Task ShellPartWithPagePush()
{
Shell shell = new Shell();
var item = CreateShellItem(shellContentRoute: ContentRoute, shellSectionRoute: SectionRoute, shellItemRoute: ItemRoute);
ShellLifeCycleState lifeCycleState = new ShellLifeCycleState(item);
shell.Items.Add(item);
lifeCycleState.AllTrue();
await shell.Navigation.PushAsync(new ContentPage());
//if you're just pushing a page then the section and item are still visible but the content is not
Assert.IsFalse(lifeCycleState.PageAppearing);
Assert.IsFalse(lifeCycleState.ContentAppearing);
Assert.IsTrue(lifeCycleState.SectionAppearing);
Assert.IsTrue(lifeCycleState.ItemAppearing);
await shell.Navigation.PushAsync(new ContentPage());
Assert.IsFalse(lifeCycleState.PageAppearing);
Assert.IsFalse(lifeCycleState.ContentAppearing);
Assert.IsTrue(lifeCycleState.SectionAppearing);
Assert.IsTrue(lifeCycleState.ItemAppearing);
await shell.Navigation.PopAsync();
Assert.IsFalse(lifeCycleState.PageAppearing);
Assert.IsFalse(lifeCycleState.ContentAppearing);
Assert.IsTrue(lifeCycleState.SectionAppearing);
Assert.IsTrue(lifeCycleState.ItemAppearing);
await shell.Navigation.PopAsync();
lifeCycleState.AllTrue();
}
public void AppearingOnShellItemChanged()
{
Shell shell = new Shell();
var item = CreateShellItem(shellContentRoute: ContentRoute, shellSectionRoute: SectionRoute, shellItemRoute: ItemRoute);
var item2 = CreateShellItem();
shell.Items.Add(item2);
shell.Items.Add(item);
ShellLifeCycleState state = new ShellLifeCycleState(shell);
state.AllFalse();
Assert.AreEqual(shell.CurrentItem, item2);
Assert.AreNotEqual(shell.CurrentItem, item);
shell.CurrentItem = item;
Assert.IsTrue(state.ItemAppearing);
Assert.IsTrue(state.SectionAppearing);
Assert.IsTrue(state.ContentAppearing);
shell.CurrentItem = item2;
Assert.IsFalse(state.ItemAppearing);
Assert.IsFalse(state.SectionAppearing);
Assert.IsFalse(state.ContentAppearing);
}
public void AppearingOnShellSectionChanged()
{
Shell shell = new Shell();
var item = CreateShellItem(shellContentRoute: ContentRoute, shellSectionRoute: SectionRoute, shellItemRoute: ItemRoute);
var section = item.SearchForRoute <ShellSection>(SectionRoute);
var newSection = CreateShellSection();
item.Items.Insert(0, newSection);
item.CurrentItem = newSection;
shell.Items.Add(item);
ShellLifeCycleState state = new ShellLifeCycleState(shell);
state.AllFalse();
Assert.AreEqual(newSection, item.CurrentItem);
Assert.AreNotEqual(section, item.CurrentItem);
item.CurrentItem = section;
Assert.IsTrue(state.SectionAppearing);
Assert.IsTrue(state.ContentAppearing);
item.CurrentItem = newSection;
Assert.IsFalse(state.SectionAppearing);
Assert.IsFalse(state.ContentAppearing);
}
public void AppearingOnShellContentChanged()
{
Shell shell = new Shell();
var item = CreateShellItem(shellContentRoute: ContentRoute, shellSectionRoute: SectionRoute, shellItemRoute: ItemRoute);
var section = item.SearchForRoute <ShellSection>(SectionRoute);
var content = new ShellContent();
section.Items.Insert(0, content);
section.CurrentItem = content;
shell.Items.Add(item);
ShellLifeCycleState state = new ShellLifeCycleState(shell);
state.AllFalse();
Assert.AreEqual(content, section.CurrentItem);
section.CurrentItem = shell.SearchForRoute <ShellContent>(ContentRoute);
Assert.IsTrue(state.ContentAppearing);
section.CurrentItem = content;
Assert.IsFalse(state.ContentAppearing);
}
public async Task ShellPartWithModalPush()
{
Shell shell = new Shell();
var item = CreateShellItem(shellContentRoute: ContentRoute, shellSectionRoute: SectionRoute, shellItemRoute: ItemRoute);
ShellLifeCycleState lifeCycleState = new ShellLifeCycleState(item);
shell.Items.Add(item);
lifeCycleState.AllTrue();
ContentPage page = new ContentPage();
await shell.Navigation.PushModalAsync(page);
lifeCycleState.AllFalse();
await shell.Navigation.PopModalAsync();
lifeCycleState.AllTrue();
}
