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using System;
using System.Linq;
using Xamarin.Forms.Internals;
using Xamarin.Forms.PlatformConfiguration;
using Xamarin.Forms.PlatformConfiguration.WindowsSpecific;
namespace Xamarin.Forms.Controls.GalleryPages.PlatformSpecificsGalleries
{
internal static class WindowsPlatformSpecificsGalleryHelpers
{
const string CommandBarActionTitle = "Hey!";
const string CommandBarActionMessage = "Command Bar Item Clicked";
const string CommandBarActionDismiss = "OK";
public static void AddToolBarItems(Page page)
{
Action action = () => page.DisplayAlert(CommandBarActionTitle, CommandBarActionMessage, CommandBarActionDismiss);
var tb1 = new ToolbarItem("Primary 1", "coffee.png", action, ToolbarItemOrder.Primary)
{
IsEnabled = true,
AutomationId = "toolbaritem_primary1"
};
var tb2 = new ToolbarItem("Primary 2", "coffee.png", action, ToolbarItemOrder.Primary)
{
IsEnabled = true,
AutomationId = "toolbaritem_primary2"
};
var tb3 = new ToolbarItem("Seconday 1", "coffee.png", action, ToolbarItemOrder.Secondary)
{
IsEnabled = true,
AutomationId = "toolbaritem_secondary3"
};
var tb4 = new ToolbarItem("Secondary 2", "coffee.png", action, ToolbarItemOrder.Secondary)
{
IsEnabled = true,
AutomationId = "toolbaritem_secondary4"
};
page.ToolbarItems.Add(tb1);
page.ToolbarItems.Add(tb2);
page.ToolbarItems.Add(tb3);
page.ToolbarItems.Add(tb4);
}
public static Layout CreateChanger(Type enumType, string defaultOption, Action<Picker> selectedIndexChanged, string label)
{
var picker = new Picker();
string[] options = Enum.GetNames(enumType);
foreach (string option in options)
{
picker.Items.Add(option);
}
picker.SelectedIndex = options.IndexOf(defaultOption);
picker.SelectedIndexChanged += (sender, args) =>
{
selectedIndexChanged(picker);
};
var changerLabel = new Label { Text = label, VerticalOptions = LayoutOptions.Center };
var layout = new Grid
{
HorizontalOptions = LayoutOptions.Center,
ColumnDefinitions = new ColumnDefinitionCollection
{
new ColumnDefinition { Width = 150 },
new ColumnDefinition { Width = 100 }
},
Children = { changerLabel, picker }
};
Grid.SetColumn(changerLabel, 0);
Grid.SetColumn(picker, 1);
return layout;
}
public static Layout CreateToolbarPlacementChanger(Page page)
{
Type enumType = typeof(ToolbarPlacement);
return CreateChanger(enumType,
Enum.GetName(enumType, page.On<Windows>().GetToolbarPlacement()),
picker =>
{
page.On<Windows>().SetToolbarPlacement((ToolbarPlacement)Enum.Parse(enumType, picker.Items[picker.SelectedIndex]));
}, "Select Toolbar Placement");
}
public static Layout CreateAddRemoveToolBarItemButtons(Page page)
{
var layout = new StackLayout { Orientation = StackOrientation.Vertical, HorizontalOptions = LayoutOptions.Center };
layout.Children.Add(new Label { Text = "Toolbar Items:" });
var buttonLayout = new StackLayout
{
Orientation = StackOrientation.Horizontal,
HorizontalOptions = LayoutOptions.Center
};
layout.Children.Add(buttonLayout);
var addPrimary = new Button { Text = "Add Primary", BackgroundColor = Color.Gray };
var addSecondary = new Button { Text = "Add Secondary", BackgroundColor = Color.Gray };
var remove = new Button { Text = "Remove", BackgroundColor = Color.Gray };
buttonLayout.Children.Add(addPrimary);
buttonLayout.Children.Add(addSecondary);
buttonLayout.Children.Add(remove);
Action action = () => page.DisplayAlert(CommandBarActionTitle, CommandBarActionMessage, CommandBarActionDismiss);
addPrimary.Clicked += (sender, args) =>
{
int index = page.ToolbarItems.Count(item => item.Order == ToolbarItemOrder.Primary) + 1;
page.ToolbarItems.Add(new ToolbarItem($"Primary {index}", "coffee.png", action, ToolbarItemOrder.Primary));
};
addSecondary.Clicked += (sender, args) =>
{
int index = page.ToolbarItems.Count(item => item.Order == ToolbarItemOrder.Secondary) + 1;
page.ToolbarItems.Add(new ToolbarItem($"Secondary {index}", "coffee.png", action, ToolbarItemOrder.Secondary));
};
remove.Clicked += (sender, args) =>
{
if (page.ToolbarItems.Any())
{
page.ToolbarItems.RemoveAt(0);
}
};
return layout;
}
}
}
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