feat: add open_most_recent_file command

Also, fold the tab_width and set_tab_width commands into one. The default
command (set_tab_width) now stores the tab_width in the persistent config.

src/main.zig

@@ -331,7 +331,12 @@ pub fn main() anyerror!void {
             try cbor.writeValue(writer, cmd_);
             try cbor.writeArrayHeader(writer, count - 1);
 
-            while (cmd_args.next()) |arg| try cbor.writeValue(writer, arg);
+            while (cmd_args.next()) |arg| {
+                if (std.fmt.parseInt(isize, arg, 10) catch null) |i|
+                    try cbor.writeValue(writer, i)
+                else
+                    try cbor.writeValue(writer, arg);
+            }
 
             try tui_proc.send_raw(.{ .buf = msg.items });
         }

src/tui/editor.zig

@@ -469,7 +469,7 @@ pub const Editor = struct {
     fn init(self: *Self, allocator: Allocator, n: Plane, buffer_manager: *Buffer.Manager) void {
         const logger = log.logger("editor");
         const frame_rate = tp.env.get().num("frame-rate");
-        const tab_width = tui.config().tab_width;
+        const tab_width = tui.get_tab_width();
         const indent_mode = tui.config().indent_mode;
         const indent_size = if (indent_mode == .tabs) tab_width else tui.config().indent_size;
         self.* = Self{
@@ -711,14 +711,14 @@ pub const Editor = struct {
         }
     }
 
-    pub fn set_tab_width(self: *Self, ctx: Context) Result {
+    pub fn set_editor_tab_width(self: *Self, ctx: Context) Result {
         var tab_width: usize = 0;
         if (!try ctx.args.match(.{tp.extract(&tab_width)}))
             return error.InvalidSetTabWidthArgument;
         self.tab_width = tab_width;
         self.refresh_tab_width();
     }
-    pub const set_tab_width_meta: Meta = .{ .arguments = &.{.integer} };
+    pub const set_editor_tab_width_meta: Meta = .{ .arguments = &.{.integer} };
 
     fn close(self: *Self) !void {
         var meta = std.ArrayListUnmanaged(u8).empty;

src/tui/mainview.zig

@@ -938,6 +938,12 @@ const cmds = struct {
     }
     pub const open_previous_file_meta: Meta = .{ .description = "Open the previous file" };
 
+    pub fn open_most_recent_file(self: *Self, _: Ctx) Result {
+        if (try project_manager.request_most_recent_file(self.allocator)) |file_path|
+            self.show_file_async(file_path);
+    }
+    pub const open_most_recent_file_meta: Meta = .{ .description = "Open the last changed file" };
+
     pub fn system_paste(self: *Self, _: Ctx) Result {
         if (builtin.os.tag == .windows) {
             const text = try @import("renderer").request_windows_clipboard(self.allocator);

src/tui/mode/mini/goto.zig

@@ -1,5 +1,7 @@
 const command = @import("command");
 
+const tui = @import("../../tui.zig");
+
 pub const Type = @import("numeric_input.zig").Create(@This());
 pub const create = Type.create;
 
@@ -7,10 +9,15 @@ pub fn name(_: *Type) []const u8 {
     return "＃goto";
 }
 
+pub fn start(_: *Type) usize {
+    const editor = tui.get_active_editor() orelse return 1;
+    return editor.get_primary().cursor.row + 1;
+}
+
 pub const preview = goto;
 pub const apply = goto;
 pub const cancel = goto;
 
-fn goto(self: *Type) void {
+fn goto(self: *Type, _: command.Context) void {
     command.executeName("goto_line", command.fmt(.{self.input orelse self.start})) catch {};
 }

src/tui/mode/mini/numeric_input.zig

@@ -22,16 +22,18 @@ pub fn Create(options: type) type {
         buf: [30]u8 = undefined,
         input: ?usize = null,
         start: usize,
+        ctx: command.Context,
         commands: Commands = undefined,
 
-        pub fn create(allocator: Allocator, _: command.Context) !struct { tui.Mode, tui.MiniMode } {
-            const editor = tui.get_active_editor() orelse return error.NotFound;
+        pub fn create(allocator: Allocator, ctx: command.Context) !struct { tui.Mode, tui.MiniMode } {
             const self = try allocator.create(Self);
             errdefer allocator.destroy(self);
             self.* = .{
                 .allocator = allocator,
-                .start = editor.get_primary().cursor.row + 1,
+                .ctx = .{ .args = try ctx.args.clone(allocator) },
+                .start = 0,
             };
+            self.start = options.start(self);
             try self.commands.init(self);
             var mode = try keybind.mode("mini/numeric", allocator, .{
                 .insert_command = "mini_mode_insert_bytes",
@@ -41,6 +43,7 @@ pub fn Create(options: type) type {
         }
 
         pub fn deinit(self: *Self) void {
+            self.allocator.free(self.ctx.args.buf);
             self.commands.deinit();
             self.allocator.destroy(self);
         }
@@ -92,7 +95,7 @@ pub fn Create(options: type) type {
             pub fn mini_mode_cancel(self: *Self, _: Ctx) Result {
                 self.input = null;
                 self.update_mini_mode_text();
-                options.cancel(self);
+                options.cancel(self, self.ctx);
                 command.executeName("exit_mini_mode", .{}) catch {};
             }
             pub const mini_mode_cancel_meta: Meta = .{ .description = "Cancel input" };
@@ -102,7 +105,7 @@ pub fn Create(options: type) type {
                     const newval = if (linenum < 10) 0 else linenum / 10;
                     self.input = if (newval == 0) null else newval;
                     self.update_mini_mode_text();
-                    options.preview(self);
+                    options.preview(self, self.ctx);
                 }
             }
             pub const mini_mode_delete_backwards_meta: Meta = .{ .description = "Delete backwards" };
@@ -116,7 +119,7 @@ pub fn Create(options: type) type {
                     else => {},
                 }
                 self.update_mini_mode_text();
-                options.preview(self);
+                options.preview(self, self.ctx);
             }
             pub const mini_mode_insert_code_point_meta: Meta = .{ .arguments = &.{.integer} };
 
@@ -126,7 +129,7 @@ pub fn Create(options: type) type {
                     return error.InvalidGotoInsertBytesArgument;
                 self.insert_bytes(bytes);
                 self.update_mini_mode_text();
-                options.preview(self);
+                options.preview(self, self.ctx);
             }
             pub const mini_mode_insert_bytes_meta: Meta = .{ .arguments = &.{.string} };
 
@@ -136,7 +139,7 @@ pub fn Create(options: type) type {
             pub const mini_mode_paste_meta: Meta = .{ .arguments = &.{.string} };
 
             pub fn mini_mode_select(self: *Self, _: Ctx) Result {
-                options.apply(self);
+                options.apply(self, self.ctx);
                 command.executeName("exit_mini_mode", .{}) catch {};
             }
             pub const mini_mode_select_meta: Meta = .{ .description = "Select" };

src/tui/mode/mini/tab_width.zig

@@ -1,5 +1,8 @@
+const cbor = @import("cbor");
 const command = @import("command");
 
+const tui = @import("../../tui.zig");
+
 pub const Type = @import("numeric_input.zig").Create(@This());
 pub const create = Type.create;
 
@@ -7,10 +10,23 @@ pub fn name(_: *Type) []const u8 {
     return " tab size";
 }
 
-pub const preview = goto;
-pub const apply = goto;
-pub const cancel = goto;
-
-fn goto(self: *Type) void {
-    command.executeName("set_tab_width", command.fmt(.{self.input orelse self.start})) catch {};
+pub fn start(self: *Type) usize {
+    const tab_width = if (tui.get_active_editor()) |editor| editor.tab_width else tui.get_tab_width();
+    self.input = tab_width;
+    return tab_width;
+}
+
+const default_cmd = "set_editor_tab_width";
+
+pub const cancel = preview;
+
+pub fn preview(self: *Type, _: command.Context) void {
+    command.executeName(default_cmd, command.fmt(.{self.input orelse self.start})) catch {};
+}
+
+pub fn apply(self: *Type, ctx: command.Context) void {
+    var cmd: []const u8 = undefined;
+    if (!(ctx.args.match(.{cbor.extract(&cmd)}) catch false))
+        cmd = default_cmd;
+    command.executeName(cmd, command.fmt(.{self.input orelse self.start})) catch {};
 }

src/tui/tui.zig

@@ -24,6 +24,7 @@ allocator: Allocator,
 rdr_: renderer,
 config_: @import("config"),
 config_bufs: [][]const u8,
+session_tab_width: ?usize = null,
 highlight_columns_: []const u16,
 highlight_columns_configured: []const u16,
 frame_time: usize, // in microseconds
@@ -744,10 +745,39 @@ const cmds = struct {
     }
     pub const force_terminate_meta: Meta = .{ .description = "Force quit without saving" };
 
-    pub fn tab_width(self: *Self, ctx: Ctx) Result {
-        return enter_mini_mode(self, @import("mode/mini/tab_width.zig"), ctx);
+    pub fn set_tab_width(self: *Self, ctx: Ctx) Result {
+        var tab_width: usize = 0;
+        if (!try ctx.args.match(.{tp.extract(&tab_width)}))
+            return enter_mini_mode(self, @import("mode/mini/tab_width.zig"), Ctx.fmt(.{"set_tab_width"}));
+
+        self.config_.tab_width = tab_width;
+        self.session_tab_width = null;
+        command.executeName("set_editor_tab_width", ctx) catch {};
+        try save_config();
+        self.logger.print("tab width {}", .{tab_width});
     }
-    pub const tab_width_meta: Meta = .{ .description = "Set tab width" };
+    pub const set_tab_width_meta: Meta = .{ .description = "Set tab width" };
+
+    pub fn set_buffer_tab_width(self: *Self, ctx: Ctx) Result {
+        var tab_width: usize = 0;
+        if (!try ctx.args.match(.{tp.extract(&tab_width)}))
+            return enter_mini_mode(self, @import("mode/mini/tab_width.zig"), Ctx.fmt(.{"set_buffer_tab_width"}));
+
+        command.executeName("set_editor_tab_width", ctx) catch {};
+        self.logger.print("buffer tab width {}", .{tab_width});
+    }
+    pub const set_buffer_tab_width_meta: Meta = .{ .description = "Set tab width for current buffer" };
+
+    pub fn set_session_tab_width(self: *Self, ctx: Ctx) Result {
+        var tab_width: usize = 0;
+        if (!try ctx.args.match(.{tp.extract(&tab_width)}))
+            return enter_mini_mode(self, @import("mode/mini/tab_width.zig"), Ctx.fmt(.{"set_session_tab_width"}));
+
+        self.session_tab_width = tab_width;
+        command.executeName("set_editor_tab_width", ctx) catch {};
+        self.logger.print("session tab width {}", .{tab_width});
+    }
+    pub const set_session_tab_width_meta: Meta = .{ .description = "Set tab width for current session" };
 
     pub fn set_theme(self: *Self, ctx: Ctx) Result {
         var name: []const u8 = undefined;
@@ -1122,6 +1152,11 @@ pub fn config() *const @import("config") {
     return &current().config_;
 }
 
+pub fn get_tab_width() usize {
+    const self = current();
+    return self.session_tab_width orelse self.config_.tab_width;
+}
+
 pub fn highlight_columns() []const u16 {
     return current().highlight_columns_;
 }