Undo/redo support

Cargo.lock

@@ -878,7 +878,7 @@ dependencies = [
 [[package]]
 name = "cosmic-text"
 version = "0.10.0"
-source = "git+https://github.com/pop-os/cosmic-text?branch=vi-editor#d001e5c09eef98ee0c3b1f549132924d32aa63ec"
+source = "git+https://github.com/pop-os/cosmic-text?branch=vi-editor#5352fdee940ef009ea978837afdfc44c468f7be8"
 dependencies = [
  "fontdb 0.15.0",
  "libm",
@@ -891,6 +891,7 @@ dependencies = [
  "swash",
  "syntect",
  "sys-locale",
+ "undo_2",
  "unicode-bidi",
  "unicode-linebreak",
  "unicode-script",
@@ -2764,7 +2765,7 @@ dependencies = [
 [[package]]
 name = "modit"
 version = "0.1.0"
-source = "git+https://github.com/pop-os/modit.git#94896d457c31079b9d6c19e592984c4262e4774e"
+source = "git+https://github.com/pop-os/modit.git#add73b87f02db213b74a8f03ad24a691e9b2446b"
 dependencies = [
  "log",
 ]
@@ -3844,6 +3845,15 @@ version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "08d43f7aa6b08d49f382cde6a7982047c3426db949b1424bc4b7ec9ae12c6ce2"
 
+[[package]]
+name = "rustc_version"
+version = "0.2.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "138e3e0acb6c9fb258b19b67cb8abd63c00679d2851805ea151465464fe9030a"
+dependencies = [
+ "semver",
+]
+
 [[package]]
 name = "rustix"
 version = "0.37.27"
@@ -3981,6 +3991,21 @@ version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e388332cd64eb80cd595a00941baf513caffae8dce9cfd0467fc9c66397dade6"
 
+[[package]]
+name = "semver"
+version = "0.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1d7eb9ef2c18661902cc47e535f9bc51b78acd254da71d375c2f6720d9a40403"
+dependencies = [
+ "semver-parser",
+]
+
+[[package]]
+name = "semver-parser"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "388a1df253eca08550bef6c72392cfe7c30914bf41df5269b68cbd6ff8f570a3"
+
 [[package]]
 name = "serde"
 version = "1.0.192"
@@ -4634,6 +4659,18 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "undo_2"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9355dd2f470d984344735b95ac12d8da371ac662f68bfecf7f05f3b4fd5416c3"
+dependencies = [
+ "cfg-if",
+ "derivative",
+ "rustc_version",
+ "serde",
+]
+
 [[package]]
 name = "unic-langid"
 version = "0.9.1"

src/config.rs

@@ -23,10 +23,12 @@ pub enum Action {
     OpenProjectDialog,
     Paste,
     Quit,
+    Redo,
     Save,
     SelectAll,
     ToggleSettingsPage,
     ToggleWordWrap,
+    Undo,
 }
 
 impl Action {
@@ -42,10 +44,12 @@ impl Action {
             Self::OpenProjectDialog => Message::OpenProjectDialog,
             Self::Paste => Message::Paste,
             Self::Quit => Message::Quit,
+            Self::Redo => Message::Redo,
             Self::Save => Message::Save,
             Self::SelectAll => Message::SelectAll,
             Self::ToggleSettingsPage => Message::ToggleContextPage(ContextPage::Settings),
             Self::ToggleWordWrap => Message::ToggleWordWrap,
+            Self::Undo => Message::Undo,
         }
     }
 }
@@ -107,10 +111,12 @@ impl KeyBind {
         bind!([Ctrl], O, OpenFileDialog);
         bind!([Ctrl, Shift], O, OpenProjectDialog);
         bind!([Ctrl], Q, Quit);
+        bind!([Ctrl, Shift], Z, Redo);
         bind!([Ctrl], S, Save);
         bind!([Ctrl], A, SelectAll);
         bind!([Ctrl], Comma, ToggleSettingsPage);
         bind!([Alt], Z, ToggleWordWrap);
+        bind!([Ctrl], Z, Undo);
 
         keybinds
     }

src/main.rs

@@ -120,6 +120,7 @@ pub enum Message {
     Paste,
     PasteValue(String),
     Quit,
+    Redo,
     Save,
     SelectAll,
     SyntaxTheme(usize, bool),
@@ -128,6 +129,7 @@ pub enum Message {
     Todo,
     ToggleContextPage(ContextPage),
     ToggleWordWrap,
+    Undo,
     VimBindings(bool),
 }
 
@@ -689,6 +691,13 @@ impl Application for App {
                 //TODO: prompt for save?
                 return window::close();
             }
+            Message::Redo => match self.active_tab() {
+                Some(tab) => {
+                    let mut editor = tab.editor.lock().unwrap();
+                    editor.redo();
+                }
+                None => {}
+            },
             Message::Save => {
                 let mut title_opt = None;
 
@@ -785,6 +794,13 @@ impl Application for App {
                 self.config.word_wrap = !self.config.word_wrap;
                 return self.save_config();
             }
+            Message::Undo => match self.active_tab() {
+                Some(tab) => {
+                    let mut editor = tab.editor.lock().unwrap();
+                    editor.undo();
+                }
+                None => {}
+            },
             Message::VimBindings(vim_bindings) => {
                 self.config.vim_bindings = vim_bindings;
                 return self.save_config();

src/menu.rs

@@ -132,8 +132,8 @@ pub fn menu_bar<'a>(config: &Config) -> Element<'a, Message> {
         MenuTree::with_children(
             menu_root(fl!("edit")),
             vec![
-                menu_key(fl!("undo"), "Ctrl + Z", Message::Todo),
-                menu_key(fl!("redo"), "Ctrl + Shift + Z", Message::Todo),
+                menu_item(fl!("undo"), Message::Undo),
+                menu_item(fl!("redo"), Message::Redo),
                 MenuTree::new(horizontal_rule(1)),
                 menu_item(fl!("cut"), Message::Cut),
                 menu_item(fl!("copy"), Message::Copy),