From 0d00510ac44726f9ff596d1d9da9952fcc10dd88 Mon Sep 17 00:00:00 2001
From: Abe White <abewhite@mac.com>
Date: Mon, 2 Oct 2023 21:50:01 -0500
Subject: [PATCH] Use material3 components that more closely align with
 SwiftUI. Fixes in applying foreground and tint color

---
 Sources/SkipUI/SkipUI/Color/Color.swift       |  5 +++--
 .../SkipUI/Compose/ComposeContext.swift       |  9 ++++++++
 Sources/SkipUI/SkipUI/Containers/List.swift   |  2 +-
 Sources/SkipUI/SkipUI/Controls/Button.swift   | 19 +++++++++++-----
 .../SkipUI/SkipUI/Controls/TextField.swift    | 22 ++++++++++++++-----
 Sources/SkipUI/SkipUI/Controls/Toggle.swift   |  3 ++-
 6 files changed, 46 insertions(+), 14 deletions(-)

diff --git a/Sources/SkipUI/SkipUI/Color/Color.swift b/Sources/SkipUI/SkipUI/Color/Color.swift
index d3105c8b..e7b8c924 100644
--- a/Sources/SkipUI/SkipUI/Color/Color.swift
+++ b/Sources/SkipUI/SkipUI/Color/Color.swift
@@ -6,6 +6,7 @@
 import androidx.compose.foundation.background
 import androidx.compose.foundation.isSystemInDarkTheme
 import androidx.compose.foundation.layout.Box
+import androidx.compose.material.ContentAlpha
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.surfaceColorAtElevation
 import androidx.compose.runtime.Composable
@@ -148,11 +149,11 @@ public struct Color: View, Hashable, Sendable {
     })
 
     public static let primary = Color(colorImpl: {
-        MaterialTheme.colorScheme.onPrimary
+        MaterialTheme.colorScheme.onBackground
     })
     
     public static let secondary = Color(colorImpl: {
-        MaterialTheme.colorScheme.onSecondary
+        MaterialTheme.colorScheme.onBackground.copy(alpha: ContentAlpha.medium)
     })
 
     static let systemBackground = Color(colorImpl: {
diff --git a/Sources/SkipUI/SkipUI/Compose/ComposeContext.swift b/Sources/SkipUI/SkipUI/Compose/ComposeContext.swift
index a505fae9..550f5057 100644
--- a/Sources/SkipUI/SkipUI/Compose/ComposeContext.swift
+++ b/Sources/SkipUI/SkipUI/Compose/ComposeContext.swift
@@ -29,4 +29,13 @@ public struct ComposeContext {
         return context
     }
 }
+
+/// Mechanism for a parent view to change how a child view is composed.
+//public protocol Composer {
+//    @Composable public func compose(view: inout View, context: ComposeContext)
+//}
+//
+//extension Composer {
+//
+//}
 #endif
diff --git a/Sources/SkipUI/SkipUI/Containers/List.swift b/Sources/SkipUI/SkipUI/Containers/List.swift
index 75296995..56ca1bad 100644
--- a/Sources/SkipUI/SkipUI/Containers/List.swift
+++ b/Sources/SkipUI/SkipUI/Containers/List.swift
@@ -112,7 +112,7 @@ public struct List<SelectionValue, Content> : View where SelectionValue: Hashabl
     private static let verticalInset = 32.0
     private static let minimumItemHeight = 44.0
     private static let horizontalItemInset = 16.0
-    private static let verticalItemInset = 8.0
+    private static let verticalItemInset = 4.0
 
     @Composable private func ComposeItem(view: inout View, context: ComposeContext, style: ListStyle) {
         let contentModifier = Modifier.padding(horizontal: Self.horizontalItemInset.dp, vertical: Self.verticalItemInset.dp).fillWidth().requiredHeightIn(min: Self.minimumItemHeight.dp)
diff --git a/Sources/SkipUI/SkipUI/Controls/Button.swift b/Sources/SkipUI/SkipUI/Controls/Button.swift
index 9f72fd7d..3b0e9c48 100644
--- a/Sources/SkipUI/SkipUI/Controls/Button.swift
+++ b/Sources/SkipUI/SkipUI/Controls/Button.swift
@@ -5,13 +5,10 @@
 #if SKIP
 import androidx.compose.foundation.clickable
 import androidx.compose.foundation.layout.Box
-import androidx.compose.foundation.layout.PaddingValues
 import androidx.compose.material.ContentAlpha
 import androidx.compose.material3.ButtonColors
 import androidx.compose.material3.ButtonDefaults
 import androidx.compose.material3.FilledTonalButton
-import androidx.compose.material3.LocalTextStyle
-import androidx.compose.material3.TextButton
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.unit.dp
@@ -58,12 +55,24 @@ public struct Button<Label> : View, ListItemAdapting where Label : View {
         ComposeContainer(modifier: context.modifier) { modifier in
             switch buttonStyle {
             case .bordered:
-                let colors = ButtonDefaults.filledTonalButtonColors()
+                let colors: ButtonColors
+                if let tint = EnvironmentValues.shared._tint {
+                    let tintColor = tint.colorImpl()
+                    colors = ButtonDefaults.filledTonalButtonColors(containerColor: tintColor.copy(alpha: Float(0.15)), contentColor: tintColor, disabledContainerColor: tintColor.copy(alpha: Float(0.15)), disabledContentColor: tintColor.copy(alpha: ContentAlpha.medium))
+                } else {
+                    colors = ButtonDefaults.filledTonalButtonColors()
+                }
                 FilledTonalButton(modifier: modifier, onClick: action, colors: colors) {
                     label.Compose(context: contentContext)
                 }
             case .borderedProminent:
-                let colors = ButtonDefaults.buttonColors()
+                let colors: ButtonColors
+                if let tint = EnvironmentValues.shared._tint {
+                    let tintColor = tint.colorImpl()
+                    colors = ButtonDefaults.buttonColors(containerColor: tintColor, disabledContainerColor: tintColor.copy(alpha: ContentAlpha.disabled))
+                } else {
+                    colors = ButtonDefaults.buttonColors()
+                }
                 androidx.compose.material3.Button(modifier: modifier, onClick: action, colors: colors) {
                     label.Compose(context: contentContext)
                 }
diff --git a/Sources/SkipUI/SkipUI/Controls/TextField.swift b/Sources/SkipUI/SkipUI/Controls/TextField.swift
index a0092d96..30c98253 100644
--- a/Sources/SkipUI/SkipUI/Controls/TextField.swift
+++ b/Sources/SkipUI/SkipUI/Controls/TextField.swift
@@ -3,6 +3,7 @@
 // as published by the Free Software Foundation https://fsf.org
 
 #if SKIP
+import androidx.compose.material.ContentAlpha
 import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.material3.OutlinedTextField
 import androidx.compose.material3.TextFieldColors
@@ -61,15 +62,26 @@ public struct TextField<Label> : View where Label : View {
     @ExperimentalMaterial3Api
     @Composable public override func ComposeContent(context: ComposeContext) {
         let contentContext = context.content()
-        let colors = TextFieldDefaults.outlinedTextFieldColors()
+        let textColor = (EnvironmentValues.shared._color ?? Color.primary).colorImpl()
+        let colors: TextFieldColors
+        if let tint = EnvironmentValues.shared._tint {
+            let tintColor = tint.colorImpl()
+            colors = TextFieldDefaults.outlinedTextFieldColors(focusedTextColor: textColor, unfocusedTextColor: textColor, disabledTextColor: textColor.copy(alpha: ContentAlpha.disabled), cursorColor: tintColor, focusedBorderColor: tintColor)
+        } else {
+            colors = TextFieldDefaults.outlinedTextFieldColors(focusedTextColor: textColor, unfocusedTextColor: textColor, disabledTextColor: textColor.copy(alpha: ContentAlpha.disabled))
+        }
         OutlinedTextField(value: text.wrappedValue, onValueChange: { text.wrappedValue = $0 }, modifier: context.modifier.fillWidth(), placeholder: { Placeholder(context: contentContext) }, singleLine: true, colors: colors)
     }
 
     @Composable private func Placeholder(context: ComposeContext) {
-        if let prompt {
-            prompt.Compose(context: context)
-        } else {
-            label.Compose(context: context)
+        EnvironmentValues.shared.setValues {
+            $0.set_color(Color(colorImpl: { Color.primary.colorImpl().copy(alpha: ContentAlpha.disabled) }))
+        } in: {
+            if let prompt {
+                prompt.Compose(context: context)
+            } else {
+                label.Compose(context: context)
+            }
         }
     }
     #else
diff --git a/Sources/SkipUI/SkipUI/Controls/Toggle.swift b/Sources/SkipUI/SkipUI/Controls/Toggle.swift
index 197019bc..d025d060 100644
--- a/Sources/SkipUI/SkipUI/Controls/Toggle.swift
+++ b/Sources/SkipUI/SkipUI/Controls/Toggle.swift
@@ -56,7 +56,8 @@ public struct Toggle<Label> : View where Label : View {
     @Composable public override func ComposeContent(context: ComposeContext) {
         let colors: SwitchColors
         if let tint = EnvironmentValues.shared._tint {
-            colors = SwitchDefaults.colors(checkedTrackColor: tint.colorImpl(), disabledCheckedTrackColor: tint.colorImpl().copy(alpha: ContentAlpha.disabled))
+            let tintColor = tint.colorImpl()
+            colors = SwitchDefaults.colors(checkedTrackColor: tintColor, disabledCheckedTrackColor: tintColor.copy(alpha: ContentAlpha.disabled))
         } else {
             colors = SwitchDefaults.colors()
         }