bykovme/nswallet

using NSWallet.NetStandard;
using NSWallet.NetStandard.Helpers.Fonts;
using NSWallet.Shared;
using Xamarin.Forms;

namespace NSWallet
{
    public partial class ManageFieldView : ContentPage
    {
        public StackLayout GetBottomMenu()
        {
            var mainPanel = new Grid {
                BackgroundColor = Theme.Current.AppHeaderBackground,
                HeightRequest = 100,
                VerticalOptions = LayoutOptions.EndAndExpand,
                HorizontalOptions = LayoutOptions.FillAndExpand,
                RowDefinitions = {
                    new RowDefinition { Height = new GridLength(120) }
                },
                ColumnDefinitions = {
                    new ColumnDefinition { Width = new GridLength(1, GridUnitType.Star) },
                    new ColumnDefinition { Width = new GridLength(1, GridUnitType.Star) },
                    new ColumnDefinition { Width = new GridLength(1, GridUnitType.Star) },
                    new ColumnDefinition { Width = new GridLength(1, GridUnitType.Star) }
                }
            };

            mainPanel.SetBinding(IsVisibleProperty, "IsEdit");

            var backIcon = CreatePanelButton(FontAwesome.Regular.Caret_Square_Left, TR.Tr("back"));

            var backGesture = new TapGestureRecognizer();
            backGesture.Tapped += (sender, e) => Navigation.PopModalAsync();
            backIcon.GestureRecognizers.Add(backGesture);

            mainPanel.Children.Add(backIcon, 0, 0);

            var deleteIcon = CreatePanelButton(FontAwesome.Regular.Trash_Alt, TR.Tr("popupmenu_delete"));

            var deleteGesture = new TapGestureRecognizer();
            deleteGesture.SetBinding(TapGestureRecognizer.CommandProperty, "DeleteFieldCommand");
            deleteIcon.GestureRecognizers.Add(deleteGesture);

            mainPanel.Children.Add(deleteIcon, 1, 0);

            var copyIcon = CreatePanelButton(FontAwesome.Regular.Copy, TR.Tr("popupmenu_copylocally"));

            var copyLocallyGesture = new TapGestureRecognizer();
            copyLocallyGesture.SetBinding(TapGestureRecognizer.CommandProperty, "CopyLocallyCommand");
            copyIcon.GestureRecognizers.Add(copyLocallyGesture);

            mainPanel.Children.Add(copyIcon, 2, 0);


            var editIcon = CreatePanelButton(FontAwesome.Regular.Edit, TR.Tr("popupmenu_change"));

            var editGesture = new TapGestureRecognizer();
            editGesture.SetBinding(TapGestureRecognizer.CommandProperty, "EditCommand");
            editIcon.GestureRecognizers.Add(editGesture);

            mainPanel.Children.Add(editIcon, 3, 0);

            var dialButton = CustomActionButton(
                FontAwesome.Regular.Phone,
                TR.Tr("field_func_open_phone_dialer"),
                "DialCommand");

            dialButton.VerticalOptions = LayoutOptions.EndAndExpand;
            dialButton.SetBinding(IsVisibleProperty, "IsPhone");

            var mailButton = CustomActionButton(
                FontAwesome.Regular.Envelope,
                TR.Tr("field_func_open_mail"),
                "MailCommand");

            mailButton.VerticalOptions = LayoutOptions.EndAndExpand;
            mailButton.SetBinding(IsVisibleProperty, "IsMail");

            var linkButton = CustomActionButton(
                FontAwesome.Regular.External_Link_Alt,
                TR.Tr("field_func_open_in_browser"),
                "LinkCommand");

            linkButton.VerticalOptions = LayoutOptions.EndAndExpand;
            linkButton.SetBinding(IsVisibleProperty, "IsLink");

            var bottomMenuLayout = new StackLayout {
                Spacing = 0,
                VerticalOptions = LayoutOptions.EndAndExpand,
                Children = {
                            dialButton,
                            mailButton,
                            linkButton,
                            mainPanel
                        }
            };
            return bottomMenuLayout;
        }

        static Grid CreatePanelButton(string btnIcon, string btnText)
        {
            var icon = new Label {
                FontFamily = NSWFontsController.FontAwesomeRegular,
                TextColor = Theme.Current.MainTitleTextColor,
                FontSize = 40,
                HorizontalOptions = LayoutOptions.CenterAndExpand,
                VerticalOptions = LayoutOptions.CenterAndExpand,
                Text = btnIcon
            };

            var text = new Label {
                FontFamily = NSWFontsController.CurrentTypeface,
                HorizontalOptions = LayoutOptions.CenterAndExpand,
                HorizontalTextAlignment = TextAlignment.Center,
                FontSize = FontSizeController.GetSize(NamedSize.Medium, typeof(Label)),
                TextColor = Theme.Current.MainTitleTextColor,
                Text = btnText
            };

            var layout = new Grid {
                Margin = new Thickness(0, 0, 0, 0),
                VerticalOptions = LayoutOptions.CenterAndExpand,
                RowDefinitions = {
                    new RowDefinition { Height = new GridLength(50) },
                    new RowDefinition { Height = new GridLength(50) }
                },
                ColumnDefinitions = {
                    new ColumnDefinition { Width = new GridLength(1, GridUnitType.Star) }
                }
            };

            layout.Children.Add(icon, 0, 0);
            layout.Children.Add(text, 0, 1);

            return layout;
        }

        static StackLayout CustomActionButton(string icon, string text, string command)
        {
            var iconLabel = new Label {
                HorizontalOptions = LayoutOptions.Center,
                HorizontalTextAlignment = TextAlignment.Center,
                VerticalOptions = LayoutOptions.CenterAndExpand,
                TextColor = Theme.Current.CommonButtonTextColor,
                FontAttributes = FontAttributes.Bold,
                Text = icon,
                FontSize = FontSizeController.GetSize(NamedSize.Medium, typeof(Button))
            };

            // FIXME: Workaround for MacOS runtime exception for FontAwesome
            if (Device.RuntimePlatform != Device.macOS) {
                iconLabel.FontFamily = NSWFontsController.FontAwesomeSolid;
            }

            var textLabel = new Label {
                HorizontalOptions = LayoutOptions.Center,
                HorizontalTextAlignment = TextAlignment.Center,
                VerticalOptions = LayoutOptions.CenterAndExpand,
                TextColor = Theme.Current.CommonButtonTextColor,
                FontSize = FontSizeController.GetSize(NamedSize.Medium, typeof(Label)),
                FontFamily = NSWFontsController.CurrentTypeface,
                Text = text
            };

            var layout = new StackLayout {
                Padding = Theme.Current.EntryMargin,
                HorizontalOptions = LayoutOptions.FillAndExpand,
                BackgroundColor = Theme.Current.CommonButtonBackground,
                HeightRequest = 50,
                Children = {
                    new StackLayout {
                        HorizontalOptions = LayoutOptions.CenterAndExpand,
                        VerticalOptions = LayoutOptions.CenterAndExpand,
                        Orientation = StackOrientation.Horizontal,
                        Children = {
                            iconLabel, textLabel
                        }
                    }
                }
            };
            var gesture = new TapGestureRecognizer();
            gesture.SetBinding(TapGestureRecognizer.CommandProperty, command);
            layout.GestureRecognizers.Add(gesture);

            return layout;
        }
    }
}