From b843f1f91fdd561146045eb391915d7f7d30fa17 Mon Sep 17 00:00:00 2001
From: "Andres G. Aragoneses" <knocte@gmail.com>
Date: Thu, 18 Jan 2024 15:51:11 +0800
Subject: [PATCH] Frontend.XF: add currency image to Receive Page

---
 src/GWallet.Frontend.XF/BalancesPage.xaml.fs |  2 +-
 src/GWallet.Frontend.XF/FrontendHelpers.fs   | 24 +++++++++++++++++---
 src/GWallet.Frontend.XF/LoadingPage.xaml.fs  | 17 +++++---------
 src/GWallet.Frontend.XF/ReceivePage.xaml     |  4 ++++
 src/GWallet.Frontend.XF/ReceivePage.xaml.fs  | 14 +++++++++++-
 5 files changed, 45 insertions(+), 16 deletions(-)

diff --git a/src/GWallet.Frontend.XF/BalancesPage.xaml.fs b/src/GWallet.Frontend.XF/BalancesPage.xaml.fs
index c08c66769..7c70af843 100644
--- a/src/GWallet.Frontend.XF/BalancesPage.xaml.fs
+++ b/src/GWallet.Frontend.XF/BalancesPage.xaml.fs
@@ -244,7 +244,7 @@ type BalancesPage(state: FrontendHelpers.IGlobalAppState,
                 let tapGestureRecognizer = TapGestureRecognizer()
                 tapGestureRecognizer.Tapped.Subscribe(fun _ ->
                     let receivePage () =
-                        ReceivePage(balanceSet.Account, balanceState.UsdRate, self, balanceSet.Widgets)
+                        ReceivePage(balanceSet.Account, readOnly, balanceState.UsdRate, self, balanceSet.Widgets)
                             :> Page
                     FrontendHelpers.SwitchToNewPage self receivePage true
                 ) |> ignore
diff --git a/src/GWallet.Frontend.XF/FrontendHelpers.fs b/src/GWallet.Frontend.XF/FrontendHelpers.fs
index 825fc1334..2bd392e38 100644
--- a/src/GWallet.Frontend.XF/FrontendHelpers.fs
+++ b/src/GWallet.Frontend.XF/FrontendHelpers.fs
@@ -32,6 +32,10 @@ type BalanceState = {
     UsdRate: MaybeCached<decimal>
 }
 
+type internal CurrencyImageSize =
+| Small = 60
+| Big = 120
+
 module FrontendHelpers =
 
     type IGlobalAppState =
@@ -411,11 +415,25 @@ module FrontendHelpers =
                                                         thisAssemblyName name
         ImageSource.FromResource(fullyQualifiedResourceNameForLogo, thisAssembly)
 
-    let GetSizedImageSource name size =
+    let internal GetSizedImageSource name (size: int) =
         let sizedName = SPrintF3 "%s_%ix%i" name size size
         GetImageSource sizedName
 
-    let GetSizedColoredImageSource name color size =
+    let internal GetSizedColoredImageSource name color (size: CurrencyImageSize) =
         let sizedColoredName = SPrintF2 "%s_%s" name color
-        GetSizedImageSource sizedColoredName size
+        GetSizedImageSource sizedColoredName (int size)
+
+    let internal CreateCurrencyImageSource (currency: Currency) (readOnly: bool) (size: CurrencyImageSize) =
+        let colour =
+            if readOnly then
+                "grey"
+            else
+                "red"
+        let currencyLowerCase = currency.ToString().ToLower()
+        GetSizedColoredImageSource currencyLowerCase colour size
+
+    let internal CreateCurrencyImage (currency: Currency) (readOnly: bool) (size: CurrencyImageSize) =
+        let imageSource = CreateCurrencyImageSource currency readOnly size
+        let currencyLogoImg = Image(Source = imageSource, IsVisible = true)
+        currencyLogoImg
 
diff --git a/src/GWallet.Frontend.XF/LoadingPage.xaml.fs b/src/GWallet.Frontend.XF/LoadingPage.xaml.fs
index 2dd54bca6..76c80dce1 100644
--- a/src/GWallet.Frontend.XF/LoadingPage.xaml.fs
+++ b/src/GWallet.Frontend.XF/LoadingPage.xaml.fs
@@ -32,16 +32,6 @@ type LoadingPage(state: FrontendHelpers.IGlobalAppState, showLogoFirst: bool) as
     let readOnlyAccounts = allAccounts.OfType<ReadOnlyAccount>() |> List.ofSeq
                            |> List.map (fun account -> account :> IAccount)
 
-    let CreateImage (currency: Currency) (readOnly: bool) =
-        let colour =
-            if readOnly then
-                "grey"
-            else
-                "red"
-        let currencyLowerCase = currency.ToString().ToLower()
-        let imageSource = FrontendHelpers.GetSizedColoredImageSource currencyLowerCase colour 60
-        let currencyLogoImg = Image(Source = imageSource, IsVisible = true)
-        currencyLogoImg
     let GetAllCurrencyCases(): seq<Currency*bool> =
         seq {
             for currency in Currency.GetAll() do
@@ -51,7 +41,12 @@ type LoadingPage(state: FrontendHelpers.IGlobalAppState, showLogoFirst: bool) as
     let GetAllImages(): seq<(Currency*bool)*Image> =
         seq {
             for currency,readOnly in GetAllCurrencyCases() do
-                yield (currency,readOnly),(CreateImage currency readOnly)
+                let currencyLogo =
+                    FrontendHelpers.CreateCurrencyImage
+                        currency
+                        readOnly
+                        CurrencyImageSize.Small
+                yield (currency, readOnly), currencyLogo
         }
     let PreLoadCurrencyImages(): Map<Currency*bool,Image> =
         GetAllImages() |> Map.ofSeq
diff --git a/src/GWallet.Frontend.XF/ReceivePage.xaml b/src/GWallet.Frontend.XF/ReceivePage.xaml
index 845717059..329074a55 100644
--- a/src/GWallet.Frontend.XF/ReceivePage.xaml
+++ b/src/GWallet.Frontend.XF/ReceivePage.xaml
@@ -10,6 +10,10 @@
         <Label x:Name="balanceLabel"
                Text="..."
                HorizontalOptions="Center" />
+        <Image
+            x:Name="currencyImage"
+            IsVisible="false"
+            />
         <Label x:Name="fiatBalanceLabel"
                Text="..."
                HorizontalOptions="Center" />
diff --git a/src/GWallet.Frontend.XF/ReceivePage.xaml.fs b/src/GWallet.Frontend.XF/ReceivePage.xaml.fs
index 4207c95b9..209e4df97 100644
--- a/src/GWallet.Frontend.XF/ReceivePage.xaml.fs
+++ b/src/GWallet.Frontend.XF/ReceivePage.xaml.fs
@@ -12,6 +12,7 @@ open ZXing.Common
 open GWallet.Backend
 
 type ReceivePage(account: IAccount,
+                 readOnly: bool,
 
                  // FIXME: should receive an Async<MaybeCached<decimal>> so that we get a fresh rate, just in case
                  usdRate: MaybeCached<decimal>,
@@ -29,11 +30,15 @@ type ReceivePage(account: IAccount,
     let paymentCaption = "Send Payment"
     let paymentCaptionInColdStorage = "Signoff Payment Offline"
 
+    let currencyImg =
+        mainLayout.FindByName<Image> "currencyImage"
+
     do
         self.Init()
 
     [<Obsolete(DummyPageConstructorHelper.Warning)>]
     new() = ReceivePage(ReadOnlyAccount(Currency.BTC, { Name = "dummy"; Content = fun _ -> "" }, fun _ -> ""),
+                        false,
                         Fresh 0m,
                         DummyPageConstructorHelper.PageFuncToRaiseExceptionIfUsedAtRuntime(),
                         { CryptoLabel = null; FiatLabel = null ; Frame = null })
@@ -79,6 +84,13 @@ type ReceivePage(account: IAccount,
             paymentButton.IsEnabled <- true
             transactionHistoryButton.IsEnabled <- false
 
+        currencyImg.Source <-
+            FrontendHelpers.CreateCurrencyImageSource
+                account.Currency
+                readOnly
+                CurrencyImageSize.Big
+        currencyImg.IsVisible <- true
+
         // FIXME: remove this workaround below when https://github.com/xamarin/Xamarin.Forms/issues/8843 gets fixed
         // TODO: file the UWP bug too
         if Device.RuntimePlatform <> Device.macOS && Device.RuntimePlatform <> Device.UWP then () else
@@ -99,7 +111,7 @@ type ReceivePage(account: IAccount,
 
     member self.OnSendPaymentClicked(_sender: Object, _args: EventArgs) =
         let newReceivePageFunc = (fun _ ->
-            ReceivePage(account, usdRate, balancesPage, balanceWidgetsFromBalancePage) :> Page
+            ReceivePage(account, readOnly, usdRate, balancesPage, balanceWidgetsFromBalancePage) :> Page
         )
         let sendPage () =
             let newPage = SendPage(account, self, newReceivePageFunc)