[Enhancement] Add Option to Override Indentation

zee/build.rs

@@ -11,6 +11,7 @@ static DEFAULT_CONFIG_DIR: Dir<'_> = include_dir!("$CARGO_MANIFEST_DIR/config");
 pub struct EditorConfig {
     #[serde(default)]
     pub theme: String,
+    pub indentation_override: Option<zee_grammar::config::IndentationConfig>,
     pub modes: Vec<ModeConfig>,
     #[serde(default)]
     pub trim_trailing_whitespace_on_save: bool,

zee/config/config.ron

@@ -7,6 +7,9 @@
     // Which colour theme to use.
     theme: "zee-gruvbox",
 
+    // The global indentation override setting
+    indentation_override: None,
+
     // Remove trailing whitespace on all lines when saving.
     // Allowed values: `true` or `false`
     trim_trailing_whitespace_on_save: true,

zee/src/components/buffer/mod.rs

@@ -237,6 +237,7 @@ impl Component for Buffer {
 
         // The textarea components that displays text
         let textarea = TextArea::with(TextAreaProperties {
+            context: self.properties.context.clone(),
             theme: self.properties.theme.syntax.clone(),
             focused: self.properties.focused,
             text: content.staged().clone(),

zee/src/components/buffer/textarea.rs

@@ -17,6 +17,7 @@ use crate::syntax::{
 
 #[derive(Clone)]
 pub struct Properties {
+    pub context: crate::editor::ContextHandle,
     pub theme: SyntaxTheme,
     pub focused: bool,
     pub text: Rope,
@@ -179,8 +180,13 @@ impl TextArea {
                 scope,
                 is_error,
             );
-            let grapheme_width =
-                zee_edit::graphemes::width(self.properties.mode.indentation.tab_width(), &grapheme);
+            let grapheme_width = zee_edit::graphemes::width(
+                match &self.properties.context.config.indentation_override {
+                    Some(setting) => setting.width,
+                    None => self.properties.mode.indentation.tab_width(),
+                },
+                &grapheme,
+            );
             let horizontal_bounds_inclusive = frame.min_x()..=frame.max_x();
             if !horizontal_bounds_inclusive.contains(&(visual_x + grapheme_width)) {
                 break;

zee/src/config.rs

@@ -12,6 +12,7 @@ use crate::error::{Context, Result};
 pub struct EditorConfig {
     #[serde(default)]
     pub theme: String,
+    pub indentation_override: Option<zee_grammar::config::IndentationConfig>,
     pub modes: Vec<ModeConfig>,
     /// Remove whitespace from the end of lines when saving. On large files this could negatively
     /// impact performance. Default: `true`.

zee/src/editor/buffer.rs

@@ -391,10 +391,20 @@ impl Buffer {
                 CursorMessage::CopySelection => self.copy_selection_to_clipboard(cursor_id),
                 CursorMessage::CutSelection => self.cut_selection_to_clipboard(cursor_id),
                 CursorMessage::InsertTab => {
-                    let (indentation_unit, indentation_count) = (
-                        self.mode.indentation.to_char(),
-                        self.mode.indentation.char_count(),
-                    );
+                    let (indentation_unit, indentation_count) =
+                        match &self.context.config.indentation_override {
+                            Some(setting) => (
+                                setting.unit.to_char(),
+                                match &setting.unit {
+                                    zee_grammar::config::IndentationUnit::Space => setting.width,
+                                    zee_grammar::config::IndentationUnit::Tab => 1,
+                                },
+                            ),
+                            None => (
+                                self.mode.indentation.to_char(),
+                                self.mode.indentation.char_count(),
+                            ),
+                        };
                     let diff = self.cursors[cursor_id.0].insert_chars(
                         &mut self.content,
                         std::iter::repeat(indentation_unit).take(indentation_count),