more do once and other cleanup

src/App/Pages/Accounts/EnvironmentPage.xaml.cs

@@ -14,8 +14,11 @@ namespace Bit.App.Pages
         }
 
         private async void Submit_Clicked(object sender, EventArgs e)
+        {
+            if(DoOnce())
             {
                 await _vm.SubmitAsync();
             }
         }
+    }
 }

src/App/Pages/Accounts/HintPage.xaml

@@ -23,7 +23,6 @@
                     Text="{u:I18n EmailAddress}"
                     StyleClass="box-label" />
                 <Entry
-                    x:Name="_email"
                     Text="{Binding Email}"
                     Keyboard="Email"
                     StyleClass="box-value" />

src/App/Pages/Accounts/HintPage.xaml.cs

@@ -13,15 +13,12 @@ namespace Bit.App.Pages
             _vm.Page = this;
         }
 
-        protected override void OnAppearing()
-        {
-            base.OnAppearing();
-            RequestFocus(_email);
-        }
-
         private async void Submit_Clicked(object sender, EventArgs e)
+        {
+            if(DoOnce())
             {
                 await _vm.SubmitAsync();
             }
         }
+    }
 }

src/App/Pages/Accounts/HomePage.xaml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8" ?>
-<ContentPage 
+<pages:BaseContentPage 
     xmlns="http://xamarin.com/schemas/2014/forms"
     xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
     x:Class="Bit.App.Pages.HomePage"
@@ -32,4 +32,4 @@
         </StackLayout>
     </StackLayout>
 
-</ContentPage>
+</pages:BaseContentPage>

src/App/Pages/Accounts/HomePage.xaml.cs

@@ -3,7 +3,7 @@ using Xamarin.Forms;
 
 namespace Bit.App.Pages
 {
-    public partial class HomePage : ContentPage
+    public partial class HomePage : BaseContentPage
     {
         public HomePage()
         {
@@ -11,18 +11,27 @@ namespace Bit.App.Pages
         }
 
         private void LogIn_Clicked(object sender, EventArgs e)
+        {
+            if(DoOnce())
             {
                 Navigation.PushModalAsync(new NavigationPage(new LoginPage()));
             }
+        }
 
         private void Register_Clicked(object sender, EventArgs e)
+        {
+            if(DoOnce())
             {
                 Navigation.PushModalAsync(new NavigationPage(new RegisterPage()));
             }
+        }
 
         private void Settings_Clicked(object sender, EventArgs e)
+        {
+            if(DoOnce())
             {
                 Navigation.PushModalAsync(new NavigationPage(new EnvironmentPage()));
             }
         }
+    }
 }

src/App/Pages/Accounts/LoginPage.xaml.cs

@@ -32,13 +32,19 @@ namespace Bit.App.Pages
         }
 
         private async void LogIn_Clicked(object sender, EventArgs e)
+        {
+            if(DoOnce())
             {
                 await _vm.LogInAsync();
             }
+        }
 
         private void Hint_Clicked(object sender, EventArgs e)
+        {
+            if(DoOnce())
             {
                 Navigation.PushModalAsync(new NavigationPage(new HintPage()));
             }
         }
+    }
 }

src/App/Pages/Accounts/LoginPageViewModel.cs

@@ -19,6 +19,7 @@ namespace Bit.App.Pages
         private readonly IStorageService _storageService;
 
         private bool _showPassword;
+        private string _email;
 
         public LoginPageViewModel()
         {
@@ -41,9 +42,14 @@ namespace Bit.App.Pages
                 });
         }
 
+        public string Email
+        {
+            get => _email;
+            set => SetProperty(ref _email, value);
+        }
+
         public Command TogglePasswordCommand { get; }
         public string ShowPasswordIcon => ShowPassword ? "" : "";
-        public string Email { get; set; }
         public string MasterPassword { get; set; }
         public bool RememberEmail { get; set; }
 

src/App/Pages/Accounts/RegisterPage.xaml.cs

@@ -19,15 +19,18 @@ namespace Bit.App.Pages
         public Entry MasterPasswordEntry { get; set; }
         public Entry ConfirmMasterPasswordEntry { get; set; }
 
-        protected override async void OnAppearing()
+        protected override void OnAppearing()
         {
             base.OnAppearing();
             RequestFocus(_email);
         }
 
         private async void Submit_Clicked(object sender, EventArgs e)
+        {
+            if(DoOnce())
             {
                 await _vm.SubmitAsync();
             }
         }
+    }
 }