feat(task): add project tasks

src/tui/mode/mini/buffer.zig

@@ -0,0 +1,123 @@
+const std = @import("std");
+const tp = @import("thespian");
+const cbor = @import("cbor");
+const log = @import("log");
+const root = @import("root");
+
+const input = @import("input");
+const keybind = @import("keybind");
+const command = @import("command");
+const EventHandler = @import("EventHandler");
+
+const tui = @import("../../tui.zig");
+
+pub fn Create(options: type) type {
+    return struct {
+        allocator: std.mem.Allocator,
+        input: std.ArrayList(u8),
+        commands: Commands = undefined,
+
+        const Commands = command.Collection(cmds);
+        const Self = @This();
+
+        pub fn create(allocator: std.mem.Allocator, _: command.Context) !struct { tui.Mode, tui.MiniMode } {
+            const self: *Self = try allocator.create(Self);
+            self.* = .{
+                .allocator = allocator,
+                .input = std.ArrayList(u8).init(allocator),
+            };
+            try self.commands.init(self);
+            if (@hasDecl(options, "restore_state"))
+                options.restore_state(self) catch {};
+            var mode = try keybind.mode("mini/buffer", allocator, .{
+                .insert_command = "mini_mode_insert_bytes",
+            });
+            mode.event_handler = EventHandler.to_owned(self);
+            return .{ mode, .{ .name = options.name(self) } };
+        }
+
+        pub fn deinit(self: *Self) void {
+            self.commands.deinit();
+            self.input.deinit();
+            self.allocator.destroy(self);
+        }
+
+        pub fn receive(self: *Self, _: tp.pid_ref, m: tp.message) error{Exit}!bool {
+            var text: []const u8 = undefined;
+
+            if (try m.match(.{ "system_clipboard", tp.extract(&text) })) {
+                self.input.appendSlice(text) catch |e| return tp.exit_error(e, @errorReturnTrace());
+            }
+            self.update_mini_mode_text();
+            return false;
+        }
+
+        fn message(comptime fmt: anytype, args: anytype) void {
+            var buf: [256]u8 = undefined;
+            tp.self_pid().send(.{ "message", std.fmt.bufPrint(&buf, fmt, args) catch @panic("too large") }) catch {};
+        }
+
+        fn update_mini_mode_text(self: *Self) void {
+            if (tui.mini_mode()) |mini_mode| {
+                mini_mode.text = self.input.items;
+                mini_mode.cursor = tui.egc_chunk_width(self.input.items, 0, 8);
+            }
+        }
+
+        const cmds = struct {
+            pub const Target = Self;
+            const Ctx = command.Context;
+            const Result = command.Result;
+
+            pub fn mini_mode_reset(self: *Self, _: Ctx) Result {
+                self.input.clearRetainingCapacity();
+                self.update_mini_mode_text();
+            }
+            pub const mini_mode_reset_meta = .{ .description = "Clear input" };
+
+            pub fn mini_mode_cancel(_: *Self, _: Ctx) Result {
+                command.executeName("exit_mini_mode", .{}) catch {};
+            }
+            pub const mini_mode_cancel_meta = .{ .description = "Cancel input" };
+
+            pub fn mini_mode_delete_backwards(self: *Self, _: Ctx) Result {
+                if (self.input.items.len > 0) {
+                    self.input.shrinkRetainingCapacity(self.input.items.len - tui.egc_last(self.input.items).len);
+                }
+                self.update_mini_mode_text();
+            }
+            pub const mini_mode_delete_backwards_meta = .{ .description = "Delete backwards" };
+
+            pub fn mini_mode_insert_code_point(self: *Self, ctx: Ctx) Result {
+                var egc: u32 = 0;
+                if (!try ctx.args.match(.{tp.extract(&egc)}))
+                    return error.InvalidMiniBufferInsertCodePointArgument;
+                var buf: [32]u8 = undefined;
+                const bytes = try input.ucs32_to_utf8(&[_]u32{egc}, &buf);
+                try self.input.appendSlice(buf[0..bytes]);
+                self.update_mini_mode_text();
+            }
+            pub const mini_mode_insert_code_point_meta = .{ .arguments = &.{.integer} };
+
+            pub fn mini_mode_insert_bytes(self: *Self, ctx: Ctx) Result {
+                var bytes: []const u8 = undefined;
+                if (!try ctx.args.match(.{tp.extract(&bytes)}))
+                    return error.InvalidMiniBufferInsertBytesArgument;
+                try self.input.appendSlice(bytes);
+                self.update_mini_mode_text();
+            }
+            pub const mini_mode_insert_bytes_meta = .{ .arguments = &.{.string} };
+
+            pub fn mini_mode_select(self: *Self, _: Ctx) Result {
+                options.select(self);
+                self.update_mini_mode_text();
+            }
+            pub const mini_mode_select_meta = .{ .description = "Select" };
+
+            pub fn mini_mode_paste(self: *Self, ctx: Ctx) Result {
+                return mini_mode_insert_bytes(self, ctx);
+            }
+            pub const mini_mode_paste_meta = .{ .arguments = &.{.string} };
+        };
+    };
+}