bitwarden-android/src/App/Pages/Vault/AddEditPage.xaml.cs

using Bit.App.Models;
using Bit.Core.Enums;
using System.Collections.Generic;
using Xamarin.Forms;

namespace Bit.App.Pages
{
    public partial class AddEditPage : BaseContentPage
    {
        private AddEditPageViewModel _vm;
        private readonly AppOptions _appOptions;
        private bool _fromAutofill;

        public AddEditPage(
            string cipherId = null,
            CipherType? type = null,
            string folderId = null,
            string collectionId = null,
            string name = null,
            string uri = null,
            bool fromAutofill = false,
            AppOptions appOptions = null)
        {
            _appOptions = appOptions;
            _fromAutofill = fromAutofill;
            FromAutofillFramework = _appOptions?.FromAutofillFramework ?? false;
            InitializeComponent();
            _vm = BindingContext as AddEditPageViewModel;
            _vm.Page = this;
            _vm.CipherId = cipherId;
            _vm.FolderId = folderId;
            _vm.CollectionIds = collectionId != null ? new HashSet<string>(new List<string> { collectionId }) : null;
            _vm.Type = type;
            _vm.DefaultName = name ?? appOptions?.SaveName;
            _vm.DefaultUri = uri ?? appOptions?.Uri;
            _vm.Init();
            SetActivityIndicator();
            if(!_vm.EditMode)
            {
                ToolbarItems.Remove(_attachmentsItem);
                ToolbarItems.Remove(_deleteItem);
            }

            _typePicker.ItemDisplayBinding = new Binding("Key");
            _cardBrandPicker.ItemDisplayBinding = new Binding("Key");
            _cardExpMonthPicker.ItemDisplayBinding = new Binding("Key");
            _identityTitlePicker.ItemDisplayBinding = new Binding("Key");
            _folderPicker.ItemDisplayBinding = new Binding("Key");
            _ownershipPicker.ItemDisplayBinding = new Binding("Key");
        }

        public bool FromAutofillFramework { get; set; }

        protected override async void OnAppearing()
        {
            base.OnAppearing();
            await LoadOnAppearedAsync(_scrollView, true, async () =>
            {
                var success = await _vm.LoadAsync();
                if(!success)
                {
                    await Navigation.PopModalAsync();
                }
            });
            if(_vm.EditMode && Device.RuntimePlatform == Device.Android)
            {
                if(_vm.Cipher.OrganizationId == null)
                {
                    if(ToolbarItems.Contains(_collectionsItem))
                    {
                        ToolbarItems.Remove(_collectionsItem);
                    }
                    if(!ToolbarItems.Contains(_shareItem))
                    {
                        ToolbarItems.Insert(2, _shareItem);
                    }
                }
                else
                {
                    if(ToolbarItems.Contains(_shareItem))
                    {
                        ToolbarItems.Remove(_shareItem);
                    }
                    if(!ToolbarItems.Contains(_collectionsItem))
                    {
                        ToolbarItems.Insert(2, _collectionsItem);
                    }
                }
            }
        }

        protected override void OnDisappearing()
        {
            base.OnDisappearing();
        }

        protected override bool OnBackButtonPressed()
        {
            if(FromAutofillFramework)
            {
                Application.Current.MainPage = new TabsPage();
                return true;
            }
            return base.OnBackButtonPressed();
        }

        private async void PasswordHistory_Tapped(object sender, System.EventArgs e)
        {
            if(DoOnce())
            {
                await Navigation.PushModalAsync(new NavigationPage(new PasswordHistoryPage(_vm.CipherId)));
            }
        }

        private async void Save_Clicked(object sender, System.EventArgs e)
        {
            if(DoOnce())
            {
                await _vm.SubmitAsync();
            }
        }

        private void NewUri_Clicked(object sender, System.EventArgs e)
        {
            _vm.AddUri();
        }

        private void NewField_Clicked(object sender, System.EventArgs e)
        {
            _vm.AddField();
        }

        private async void Attachments_Clicked(object sender, System.EventArgs e)
        {
            if(DoOnce())
            {
                var page = new AttachmentsPage(_vm.CipherId);
                await Navigation.PushModalAsync(new NavigationPage(page));
            }
        }

        private async void Share_Clicked(object sender, System.EventArgs e)
        {
            if(DoOnce())
            {
                var page = new SharePage(_vm.CipherId);
                await Navigation.PushModalAsync(new NavigationPage(page));
            }
        }

        private async void Delete_Clicked(object sender, System.EventArgs e)
        {
            if(DoOnce())
            {
                if(await _vm.DeleteAsync())
                {
                    await Navigation.PopModalAsync();
                }
            }
        }

        private async void Collections_Clicked(object sender, System.EventArgs e)
        {
            if(DoOnce())
            {
                var page = new CollectionsPage(_vm.CipherId);
                await Navigation.PushModalAsync(new NavigationPage(page));
            }
        }

        private async void ScanTotp_Clicked(object sender, System.EventArgs e)
        {
            if(DoOnce())
            {
                var page = new ScanPage(key =>
                {
                    Device.BeginInvokeOnMainThread(async () =>
                    {
                        await Navigation.PopModalAsync();
                        await _vm.UpdateTotpKeyAsync(key);
                    });
                });
                await Navigation.PushModalAsync(new NavigationPage(page));
            }
        }
    }
}