336 lines
14 KiB
Zig
336 lines
14 KiB
Zig
const tp = @import("thespian");
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const key = @import("renderer").input.key;
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const mod = @import("renderer").input.modifier;
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const event_type = @import("renderer").input.event_type;
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const ucs32_to_utf8 = @import("renderer").ucs32_to_utf8;
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const tui = @import("../../../tui.zig");
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const command = @import("../../../command.zig");
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const EventHandler = @import("../../../EventHandler.zig");
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const Allocator = @import("std").mem.Allocator;
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const ArrayList = @import("std").ArrayList;
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const eql = @import("std").mem.eql;
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const Self = @This();
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const input_buffer_size = 1024;
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allocator: Allocator,
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input: ArrayList(u8),
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last_cmd: []const u8 = "",
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leader: ?struct { keypress: u32, modifiers: u32 } = null,
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commands: Commands = undefined,
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pub fn create(allocator: Allocator) !tui.Mode {
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const self: *Self = try allocator.create(Self);
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self.* = .{
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.allocator = allocator,
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.input = try ArrayList(u8).initCapacity(allocator, input_buffer_size),
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};
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try self.commands.init(self);
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return .{
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.handler = EventHandler.to_owned(self),
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.name = "INSERT",
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.description = "vim",
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.line_numbers = if (tui.current().config.vim_insert_gutter_line_numbers_relative) .relative else .absolute,
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.cursor_shape = .beam,
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};
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}
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pub fn deinit(self: *Self) void {
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self.commands.deinit();
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self.input.deinit();
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self.allocator.destroy(self);
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}
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pub fn receive(self: *Self, _: tp.pid_ref, m: tp.message) error{Exit}!bool {
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var evtype: u32 = undefined;
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var keypress: u32 = undefined;
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var egc: u32 = undefined;
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var modifiers: u32 = undefined;
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var text: []const u8 = undefined;
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if (try m.match(.{ "I", tp.extract(&evtype), tp.extract(&keypress), tp.extract(&egc), tp.string, tp.extract(&modifiers) })) {
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self.mapEvent(evtype, keypress, egc, modifiers) catch |e| return tp.exit_error(e, @errorReturnTrace());
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} else if (try m.match(.{"F"})) {
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self.flush_input() catch |e| return tp.exit_error(e, @errorReturnTrace());
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} else if (try m.match(.{ "system_clipboard", tp.extract(&text) })) {
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self.flush_input() catch |e| return tp.exit_error(e, @errorReturnTrace());
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self.insert_bytes(text) catch |e| return tp.exit_error(e, @errorReturnTrace());
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self.flush_input() catch |e| return tp.exit_error(e, @errorReturnTrace());
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}
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return false;
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}
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pub fn add_keybind() void {}
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fn mapEvent(self: *Self, evtype: u32, keypress: u32, egc: u32, modifiers: u32) !void {
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return switch (evtype) {
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event_type.PRESS => self.mapPress(keypress, egc, modifiers),
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event_type.REPEAT => self.mapPress(keypress, egc, modifiers),
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event_type.RELEASE => self.mapRelease(keypress, egc, modifiers),
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else => {},
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};
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}
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fn mapPress(self: *Self, keypress: u32, egc: u32, modifiers: u32) !void {
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const keynormal = if ('a' <= keypress and keypress <= 'z') keypress - ('a' - 'A') else keypress;
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if (self.leader) |_| return self.mapFollower(keynormal, egc, modifiers);
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switch (keypress) {
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key.LCTRL, key.RCTRL => return self.cmd("enable_fast_scroll", .{}),
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key.LALT, key.RALT => return self.cmd("enable_jump_mode", .{}),
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else => {},
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}
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return switch (modifiers) {
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mod.CTRL => switch (keynormal) {
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'E' => self.cmd("open_recent", .{}),
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'U' => self.cmd("move_scroll_page_up", .{}),
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'D' => self.cmd("move_scroll_page_down", .{}),
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'J' => self.cmd("toggle_panel", .{}),
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'Z' => self.cmd("undo", .{}),
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'Y' => self.cmd("redo", .{}),
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'Q' => self.cmd("quit", .{}),
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'W' => self.cmd("close_file", .{}),
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'S' => self.cmd("save_file", .{}),
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'L' => self.cmd_cycle3("scroll_view_center", "scroll_view_top", "scroll_view_bottom", .{}),
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'N' => self.cmd("goto_next_match", .{}),
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'P' => self.cmd("goto_prev_match", .{}),
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'B' => self.cmd("move_to_char", command.fmt(.{false})),
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'T' => self.cmd("move_to_char", command.fmt(.{true})),
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'X' => self.cmd("cut", .{}),
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'C' => self.cmd("enter_mode", command.fmt(.{"vim/normal"})),
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'V' => self.cmd("system_paste", .{}),
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'K' => self.leader = .{ .keypress = keynormal, .modifiers = modifiers },
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'F' => self.cmd("find", .{}),
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'G' => self.cmd("goto", .{}),
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'O' => self.cmd("run_ls", .{}),
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'A' => self.cmd("select_all", .{}),
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'I' => self.insert_bytes("\t"),
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'/' => self.cmd("toggle_comment", .{}),
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key.ENTER => self.cmd("smart_insert_line_after", .{}),
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key.SPACE => self.cmd("selections_reverse", .{}),
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key.END => self.cmd("move_buffer_end", .{}),
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key.HOME => self.cmd("move_buffer_begin", .{}),
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key.UP => self.cmd("move_scroll_up", .{}),
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key.DOWN => self.cmd("move_scroll_down", .{}),
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key.PGUP => self.cmd("move_scroll_page_up", .{}),
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key.PGDOWN => self.cmd("move_scroll_page_down", .{}),
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key.LEFT => self.cmd("move_word_left", .{}),
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key.RIGHT => self.cmd("move_word_right", .{}),
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key.BACKSPACE => self.cmd("delete_word_left", .{}),
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key.DEL => self.cmd("delete_word_right", .{}),
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key.F05 => self.cmd("toggle_inspector_view", .{}),
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key.F10 => self.cmd("toggle_whitespace_mode", .{}), // aka F34
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else => {},
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},
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mod.CTRL | mod.SHIFT => switch (keynormal) {
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'P' => self.cmd("open_command_palette", .{}),
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'D' => self.cmd("dupe_down", .{}),
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'Z' => self.cmd("redo", .{}),
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'Q' => self.cmd("quit_without_saving", .{}),
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'W' => self.cmd("close_file_without_saving", .{}),
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'F' => self.cmd("find_in_files", .{}),
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'L' => self.cmd_async("add_cursor_all_matches"),
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'I' => self.cmd_async("toggle_inspector_view"),
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key.ENTER => self.cmd("smart_insert_line_before", .{}),
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key.END => self.cmd("select_buffer_end", .{}),
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key.HOME => self.cmd("select_buffer_begin", .{}),
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key.UP => self.cmd("select_scroll_up", .{}),
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key.DOWN => self.cmd("select_scroll_down", .{}),
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key.LEFT => self.cmd("select_word_left", .{}),
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key.RIGHT => self.cmd("select_word_right", .{}),
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else => {},
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},
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mod.ALT => switch (keynormal) {
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'J' => self.cmd("join_next_line", .{}),
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'N' => self.cmd("goto_next_match", .{}),
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'P' => self.cmd("goto_prev_match", .{}),
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'U' => self.cmd("to_upper", .{}),
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'L' => self.cmd("to_lower", .{}),
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'I' => self.cmd("toggle_inputview", .{}),
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'B' => self.cmd("move_word_left", .{}),
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'F' => self.cmd("move_word_right", .{}),
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'S' => self.cmd("filter", command.fmt(.{"sort"})),
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'V' => self.cmd("paste", .{}),
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key.LEFT => self.cmd("jump_back", .{}),
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key.RIGHT => self.cmd("jump_forward", .{}),
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key.UP => self.cmd("pull_up", .{}),
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key.DOWN => self.cmd("pull_down", .{}),
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key.ENTER => self.cmd("insert_line", .{}),
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key.F10 => self.cmd("gutter_mode_next", .{}), // aka F58
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else => {},
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},
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mod.ALT | mod.SHIFT => switch (keynormal) {
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'P' => self.cmd("open_command_palette", .{}),
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'D' => self.cmd("dupe_up", .{}),
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'F' => self.cmd("filter", command.fmt(.{ "zig", "fmt", "--stdin" })),
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'S' => self.cmd("filter", command.fmt(.{ "sort", "-u" })),
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'V' => self.cmd("paste", .{}),
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'I' => self.cmd("add_cursors_to_line_ends", .{}),
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key.LEFT => self.cmd("move_scroll_left", .{}),
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key.RIGHT => self.cmd("move_scroll_right", .{}),
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key.UP => self.cmd("add_cursor_up", .{}),
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key.DOWN => self.cmd("add_cursor_down", .{}),
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else => {},
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},
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mod.SHIFT => switch (keypress) {
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key.F03 => self.cmd("goto_prev_match", .{}),
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key.LEFT => self.cmd("select_left", .{}),
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key.RIGHT => self.cmd("select_right", .{}),
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key.UP => self.cmd("select_up", .{}),
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key.DOWN => self.cmd("select_down", .{}),
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key.HOME => self.cmd("smart_select_begin", .{}),
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key.END => self.cmd("select_end", .{}),
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key.PGUP => self.cmd("select_page_up", .{}),
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key.PGDOWN => self.cmd("select_page_down", .{}),
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key.ENTER => self.cmd("smart_insert_line_before", .{}),
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key.BACKSPACE => self.cmd("delete_backward", .{}),
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key.TAB => self.cmd("unindent", .{}),
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else => if (!key.synthesized_p(keypress))
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self.insert_code_point(egc)
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else {},
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},
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0 => switch (keypress) {
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key.F02 => self.cmd("toggle_input_mode", .{}),
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key.F03 => self.cmd("goto_next_match", .{}),
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key.F15 => self.cmd("goto_prev_match", .{}), // S-F3
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key.F05 => self.cmd("toggle_inspector_view", .{}), // C-F5
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key.F06 => self.cmd("dump_current_line_tree", .{}),
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key.F07 => self.cmd("dump_current_line", .{}),
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key.F09 => self.cmd("theme_prev", .{}),
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key.F10 => self.cmd("theme_next", .{}),
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key.F11 => self.cmd("toggle_panel", .{}),
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key.F12 => self.cmd("goto_definition", .{}),
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key.F34 => self.cmd("toggle_whitespace_mode", .{}), // C-F10
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key.F58 => self.cmd("gutter_mode_next", .{}), // A-F10
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key.ESC => self.cmd("enter_mode", command.fmt(.{"vim/normal"})),
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key.ENTER => self.cmd("smart_insert_line", .{}),
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key.DEL => self.cmd("delete_forward", .{}),
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key.BACKSPACE => self.cmd("delete_backward", .{}),
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key.LEFT => self.cmd("move_left", .{}),
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key.RIGHT => self.cmd("move_right", .{}),
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key.UP => self.cmd("move_up", .{}),
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key.DOWN => self.cmd("move_down", .{}),
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key.HOME => self.cmd("smart_move_begin", .{}),
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key.END => self.cmd("move_end", .{}),
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key.PGUP => self.cmd("move_page_up", .{}),
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key.PGDOWN => self.cmd("move_page_down", .{}),
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key.TAB => self.cmd("indent", .{}),
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else => if (!key.synthesized_p(keypress))
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self.insert_code_point(egc)
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else {},
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},
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else => {},
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};
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}
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fn mapFollower(self: *Self, keypress: u32, _: u32, modifiers: u32) !void {
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defer self.leader = null;
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const ldr = if (self.leader) |leader| leader else return;
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return switch (ldr.modifiers) {
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mod.CTRL => switch (ldr.keypress) {
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'K' => switch (modifiers) {
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mod.CTRL => switch (keypress) {
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'U' => self.cmd("delete_to_begin", .{}),
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'K' => self.cmd("delete_to_end", .{}),
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'D' => self.cmd("move_cursor_next_match", .{}),
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'T' => self.cmd("change_theme", .{}),
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else => {},
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},
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else => {},
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},
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else => {},
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},
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else => {},
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};
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}
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fn mapRelease(self: *Self, keypress: u32, _: u32, _: u32) !void {
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return switch (keypress) {
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key.LCTRL, key.RCTRL => self.cmd("disable_fast_scroll", .{}),
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key.LALT, key.RALT => self.cmd("disable_jump_mode", .{}),
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else => {},
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};
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}
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fn insert_code_point(self: *Self, c: u32) !void {
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if (self.input.items.len + 4 > input_buffer_size)
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try self.flush_input();
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var buf: [6]u8 = undefined;
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const bytes = try ucs32_to_utf8(&[_]u32{c}, &buf);
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try self.input.appendSlice(buf[0..bytes]);
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}
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fn insert_bytes(self: *Self, bytes: []const u8) !void {
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if (self.input.items.len + 4 > input_buffer_size)
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try self.flush_input();
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try self.input.appendSlice(bytes);
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}
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var insert_chars_id: ?command.ID = null;
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fn flush_input(self: *Self) !void {
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if (self.input.items.len > 0) {
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defer self.input.clearRetainingCapacity();
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const id = insert_chars_id orelse command.get_id_cache("insert_chars", &insert_chars_id) orelse {
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return tp.exit_error(error.InputTargetNotFound, null);
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};
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try command.execute(id, command.fmt(.{self.input.items}));
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self.last_cmd = "insert_chars";
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}
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}
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fn cmd(self: *Self, name_: []const u8, ctx: command.Context) tp.result {
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try self.flush_input();
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self.last_cmd = name_;
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try command.executeName(name_, ctx);
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}
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fn cmd_cycle3(self: *Self, name1: []const u8, name2: []const u8, name3: []const u8, ctx: command.Context) tp.result {
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return if (eql(u8, self.last_cmd, name2))
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self.cmd(name3, ctx)
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else if (eql(u8, self.last_cmd, name1))
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self.cmd(name2, ctx)
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else
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self.cmd(name1, ctx);
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}
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fn cmd_async(self: *Self, name_: []const u8) tp.result {
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self.last_cmd = name_;
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return tp.self_pid().send(.{ "cmd", name_ });
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}
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const Commands = command.Collection(cmds_);
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const cmds_ = struct {
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pub const Target = Self;
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const Ctx = command.Context;
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const Result = command.Result;
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pub fn w(self: *Self, _: Ctx) Result {
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try self.cmd("save_file", .{});
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}
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pub const w_meta = .{ .description = "w (write file)" };
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pub fn q(self: *Self, _: Ctx) Result {
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try self.cmd("quit", .{});
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}
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pub const q_meta = .{ .description = "q (quit)" };
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pub fn @"q!"(self: *Self, _: Ctx) Result {
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try self.cmd("quit_without_saving", .{});
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}
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pub const @"q!_meta" = .{ .description = "q! (quit without saving)" };
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pub fn wq(self: *Self, _: Ctx) Result {
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try self.cmd("save_file", .{});
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try self.cmd("quit", .{});
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}
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pub const wq_meta = .{ .description = "wq (write file and quit)" };
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pub fn @"wq!"(self: *Self, _: Ctx) Result {
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self.cmd("save_file", .{}) catch {};
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try self.cmd("quit_without_saving", .{});
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}
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pub const @"wq!_meta" = .{ .description = "wq! (write file and quit without saving)" };
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};
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