Added basic clipboard support

Cargo.lock

@@ -83,6 +83,12 @@ version = "2.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ed570934406eb16438a4e976b1b4500774099c13b8cb96eec99f620f05090ddf"
 
+[[package]]
+name = "block"
+version = "0.1.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0d8c1fef690941d3e7788d328517591fecc684c084084702d6ff1641e993699a"
+
 [[package]]
 name = "cc"
 version = "1.2.27"
@@ -152,6 +158,28 @@ version = "0.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "702fc72eb24e5a1e48ce58027a675bc24edd52096d5397d4aea7c6dd9eca0bd1"
 
+[[package]]
+name = "clipboard"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "25a904646c0340239dcf7c51677b33928bf24fdf424b79a57909c0109075b2e7"
+dependencies = [
+ "clipboard-win",
+ "objc",
+ "objc-foundation",
+ "objc_id",
+ "x11-clipboard",
+]
+
+[[package]]
+name = "clipboard-win"
+version = "2.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e3a093d6fed558e5fe24c3dfc85a68bb68f1c824f440d3ba5aca189e2998786b"
+dependencies = [
+ "winapi",
+]
+
 [[package]]
 name = "colorchoice"
 version = "1.0.0"
@@ -234,6 +262,15 @@ version = "0.4.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b5e6163cb8c49088c2c36f57875e58ccd8c87c7427f7fbd50ea6710b2f3f2e8f"
 
+[[package]]
+name = "malloc_buf"
+version = "0.0.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "62bb907fe88d54d8d9ce32a3cceab4218ed2f6b7d35617cafe9adf84e43919cb"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "memchr"
 version = "2.7.5"
@@ -252,6 +289,35 @@ dependencies = [
  "windows-sys 0.48.0",
 ]
 
+[[package]]
+name = "objc"
+version = "0.2.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "915b1b472bc21c53464d6c8461c9d3af805ba1ef837e1cac254428f4a77177b1"
+dependencies = [
+ "malloc_buf",
+]
+
+[[package]]
+name = "objc-foundation"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1add1b659e36c9607c7aab864a76c7a4c2760cd0cd2e120f3fb8b952c7e22bf9"
+dependencies = [
+ "block",
+ "objc",
+ "objc_id",
+]
+
+[[package]]
+name = "objc_id"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c92d4ddb4bd7b50d730c215ff871754d0da6b2178849f8a2a2ab69712d0c073b"
+dependencies = [
+ "objc",
+]
+
 [[package]]
 name = "parking_lot"
 version = "0.12.1"
@@ -648,12 +714,32 @@ version = "0.52.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "dff9641d1cd4be8d1a070daf9e3773c5f67e78b4d9d42263020c057706765c04"
 
+[[package]]
+name = "x11-clipboard"
+version = "0.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "89bd49c06c9eb5d98e6ba6536cf64ac9f7ee3a009b2f53996d405b3944f6bcea"
+dependencies = [
+ "xcb",
+]
+
+[[package]]
+name = "xcb"
+version = "0.8.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5e917a3f24142e9ff8be2414e36c649d47d6cc2ba81f16201cdef96e533e02de"
+dependencies = [
+ "libc",
+ "log",
+]
+
 [[package]]
 name = "zte"
 version = "0.2.0"
 dependencies = [
  "chumsky",
  "clap",
+ "clipboard",
  "crossterm",
  "slotmap",
  "thiserror",

Cargo.toml

@@ -10,6 +10,7 @@ crossterm = "0.27"
 thiserror = "1.0"
 chumsky = { version = "0.10.1", features = ["pratt"] }
 unicode-display-width = "0.3.0"
+clipboard = "0.5.0"
 
 [profile.dev]
 opt-level = 2

src/action.rs

@@ -45,6 +45,9 @@ pub enum Action {
     Mouse(MouseAction, [isize; 2], bool), // (action, pos, is_ctrl)
     Undo,
     Redo,
+    Copy,
+    Cut,
+    Paste,
 }
 
 /// How far should movement go?
@@ -429,7 +432,7 @@ impl RawEvent {
         }
     }
 
-    pub fn to_undo_redo(&self) -> Option<Action> {
+    pub fn to_edit(&self) -> Option<Action> {
         match &self.0 {
             TerminalEvent::Key(KeyEvent {
                 code: KeyCode::Char('z'),
@@ -443,6 +446,24 @@ impl RawEvent {
                 kind: KeyEventKind::Press,
                 ..
             }) => Some(Action::Redo),
+            TerminalEvent::Key(KeyEvent {
+                code: KeyCode::Char('c'),
+                modifiers: KeyModifiers::CONTROL,
+                kind: KeyEventKind::Press,
+                ..
+            }) => Some(Action::Copy),
+            TerminalEvent::Key(KeyEvent {
+                code: KeyCode::Char('x'),
+                modifiers: KeyModifiers::CONTROL,
+                kind: KeyEventKind::Press,
+                ..
+            }) => Some(Action::Cut),
+            TerminalEvent::Key(KeyEvent {
+                code: KeyCode::Char('v'),
+                modifiers: KeyModifiers::CONTROL,
+                kind: KeyEventKind::Press,
+                ..
+            }) => Some(Action::Paste),
             _ => None,
         }
     }

src/state.rs

@@ -3,6 +3,7 @@ use crate::{
     highlight::{Highlighter, Highlights},
     theme,
 };
+use clipboard::{ClipboardContext, ClipboardProvider};
 use slotmap::{HopSlotMap, new_key_type};
 use std::{
     collections::HashMap,
@@ -734,6 +735,39 @@ impl Buffer {
         }
     }
 
+    pub fn copy(&mut self, cursor_id: CursorId) -> bool {
+        let Some(cursor) = self.cursors.get(cursor_id) else {
+            return false;
+        };
+        if let Some(text) = cursor.selection().and_then(|s| self.text.chars().get(s))
+            && ClipboardContext::new()
+                .and_then(|mut ctx| ctx.set_contents(text.iter().copied().collect()))
+                .is_ok()
+        {
+            true
+        } else {
+            false
+        }
+    }
+
+    pub fn cut(&mut self, cursor_id: CursorId) -> bool {
+        if self.copy(cursor_id) {
+            self.backspace(cursor_id);
+            true
+        } else {
+            false
+        }
+    }
+
+    pub fn paste(&mut self, cursor_id: CursorId) -> bool {
+        if let Ok(s) = ClipboardContext::new().and_then(|mut ctx| ctx.get_contents()) {
+            self.enter(cursor_id, s.chars());
+            true
+        } else {
+            false
+        }
+    }
+
     pub fn start_session(&mut self) -> CursorId {
         self.cursors.insert(Cursor::default())
     }

src/ui/input.rs

@@ -67,7 +67,7 @@ impl Input {
                 .or_else(|| e.to_select_all())
                 .or_else(|| e.to_indent())
                 .or_else(|| e.to_mouse(self.last_area))
-                .or_else(|| e.to_undo_redo())
+                .or_else(|| e.to_edit())
         }) {
             Some(Action::Char(c)) => {
                 if c == '\x08' {
@@ -164,6 +164,30 @@ impl Input {
                     Ok(Resp::handled(Some(Event::Bell)))
                 }
             }
+            Some(Action::Copy) => {
+                if buffer.copy(cursor_id) {
+                    self.refocus(buffer, cursor_id);
+                    Ok(Resp::handled(None))
+                } else {
+                    Ok(Resp::handled(Some(Event::Bell)))
+                }
+            }
+            Some(Action::Cut) => {
+                if buffer.cut(cursor_id) {
+                    self.refocus(buffer, cursor_id);
+                    Ok(Resp::handled(None))
+                } else {
+                    Ok(Resp::handled(Some(Event::Bell)))
+                }
+            }
+            Some(Action::Paste) => {
+                if buffer.paste(cursor_id) {
+                    self.refocus(buffer, cursor_id);
+                    Ok(Resp::handled(None))
+                } else {
+                    Ok(Resp::handled(Some(Event::Bell)))
+                }
+            }
             _ => Err(event),
         }
     }