From 5646a2893a98a2675dfd09979891ff1d4354b958 Mon Sep 17 00:00:00 2001
From: Ed Page <eopage@gmail.com>
Date: Thu, 31 Aug 2023 14:09:17 -0500
Subject: [PATCH] refactor(wincon): Pull out platform-specific code

---
 crates/anstyle-wincon/src/stream.rs  | 52 ++++++----------------------
 crates/anstyle-wincon/src/windows.rs | 40 +++++++++++++++++++++
 2 files changed, 50 insertions(+), 42 deletions(-)

diff --git a/crates/anstyle-wincon/src/stream.rs b/crates/anstyle-wincon/src/stream.rs
index d1d232b0..3460772a 100644
--- a/crates/anstyle-wincon/src/stream.rs
+++ b/crates/anstyle-wincon/src/stream.rs
@@ -106,7 +106,7 @@ impl WinconStream for std::fs::File {
 /// Write colored text to the screen
 #[derive(Clone, Debug)]
 pub(crate) enum ConsoleState {
-    Wincon(WinconAdapter),
+    Wincon(StdioAdapter),
     Pass(PassThroughAdapter),
 }
 
@@ -116,7 +116,7 @@ impl ConsoleState {
     ) -> std::io::Result<Self> {
         let adapter = match stream.get_colors() {
             Ok((Some(initial_fg), Some(initial_bg))) => {
-                Self::Wincon(WinconAdapter::new(initial_fg, initial_bg))
+                Self::Wincon(StdioAdapter::new(initial_fg, initial_bg))
             }
             Ok(_) => Self::Pass(PassThroughAdapter),
             Err(err) => {
@@ -162,33 +162,8 @@ impl ConsoleState {
 pub(crate) struct PassThroughAdapter;
 
 impl PassThroughAdapter {
-    fn apply<S: crate::WinconStream + std::io::Write>(
-        &mut self,
-        stream: &mut S,
-        fg: Option<anstyle::AnsiColor>,
-        bg: Option<anstyle::AnsiColor>,
-    ) -> std::io::Result<()> {
-        stream.set_colors(fg, bg)?;
-        Ok(())
-    }
-}
-
-#[derive(Clone, Debug)]
-pub(crate) struct WinconAdapter {
-    initial_fg: anstyle::AnsiColor,
-    initial_bg: anstyle::AnsiColor,
-    last_fg: anstyle::AnsiColor,
-    last_bg: anstyle::AnsiColor,
-}
-
-impl WinconAdapter {
-    fn new(initial_fg: anstyle::AnsiColor, initial_bg: anstyle::AnsiColor) -> Self {
-        Self {
-            initial_fg,
-            initial_bg,
-            last_fg: initial_fg,
-            last_bg: initial_bg,
-        }
+    fn new(_initial_fg: anstyle::AnsiColor, _initial_bg: anstyle::AnsiColor) -> Self {
+        Self
     }
 
     fn apply<S: crate::WinconStream + std::io::Write>(
@@ -197,23 +172,16 @@ impl WinconAdapter {
         fg: Option<anstyle::AnsiColor>,
         bg: Option<anstyle::AnsiColor>,
     ) -> std::io::Result<()> {
-        let fg = fg.unwrap_or(self.initial_fg);
-        let bg = bg.unwrap_or(self.initial_bg);
-        if fg == self.last_fg && bg == self.last_bg {
-            return Ok(());
-        }
-
-        // Ensure everything is written with the last set of colors before applying the next set
-        stream.flush()?;
-
-        stream.set_colors(Some(fg), Some(bg))?;
-        self.last_fg = fg;
-        self.last_bg = bg;
-
+        stream.set_colors(fg, bg)?;
         Ok(())
     }
 }
 
+#[cfg(windows)]
+use crate::windows::WinconAdapter as StdioAdapter;
+#[cfg(not(windows))]
+use PassThroughAdapter as StdioAdapter;
+
 #[cfg(windows)]
 mod wincon {
     use std::os::windows::io::AsHandle;
diff --git a/crates/anstyle-wincon/src/windows.rs b/crates/anstyle-wincon/src/windows.rs
index 188a8e54..47d4091c 100644
--- a/crates/anstyle-wincon/src/windows.rs
+++ b/crates/anstyle-wincon/src/windows.rs
@@ -22,6 +22,46 @@ pub fn get_colors<S: AsHandle>(
     Ok((fg, bg))
 }
 
+#[derive(Clone, Debug)]
+pub(crate) struct WinconAdapter {
+    initial_fg: anstyle::AnsiColor,
+    initial_bg: anstyle::AnsiColor,
+    last_fg: anstyle::AnsiColor,
+    last_bg: anstyle::AnsiColor,
+}
+
+impl WinconAdapter {
+    pub(crate) fn new(initial_fg: anstyle::AnsiColor, initial_bg: anstyle::AnsiColor) -> Self {
+        Self {
+            initial_fg,
+            initial_bg,
+            last_fg: initial_fg,
+            last_bg: initial_bg,
+        }
+    }
+
+    pub(crate) fn apply<S: crate::WinconStream + std::io::Write>(
+        &mut self,
+        stream: &mut S,
+        fg: Option<anstyle::AnsiColor>,
+        bg: Option<anstyle::AnsiColor>,
+    ) -> std::io::Result<()> {
+        let fg = fg.unwrap_or(self.initial_fg);
+        let bg = bg.unwrap_or(self.initial_bg);
+        if fg == self.last_fg && bg == self.last_bg {
+            return Ok(());
+        }
+
+        // Ensure everything is written with the last set of colors before applying the next set
+        stream.flush()?;
+
+        stream.set_colors(Some(fg), Some(bg))?;
+        self.last_fg = fg;
+        self.last_bg = bg;
+
+        Ok(())
+    }
+}
 mod inner {
     use windows_sys::Win32::System::Console::CONSOLE_CHARACTER_ATTRIBUTES;
     use windows_sys::Win32::System::Console::CONSOLE_SCREEN_BUFFER_INFO;