142 lines
5 KiB
Zig
142 lines
5 KiB
Zig
const tp = @import("thespian");
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const input = @import("input");
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const keybind = @import("keybind");
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const command = @import("command");
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const EventHandler = @import("EventHandler");
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const tui = @import("../../tui.zig");
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const Allocator = @import("std").mem.Allocator;
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const eql = @import("std").mem.eql;
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const Self = @This();
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const name = " find";
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const Commands = command.Collection(cmds);
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const max_query_size = 1024;
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allocator: Allocator,
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buf: [max_query_size]u8 = undefined,
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input_: []u8 = "",
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last_buf: [max_query_size]u8 = undefined,
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last_input: []u8 = "",
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commands: Commands = undefined,
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pub fn create(allocator: Allocator, _: command.Context) !struct { tui.Mode, tui.MiniMode } {
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const self: *Self = try allocator.create(Self);
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self.* = .{ .allocator = allocator };
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try self.commands.init(self);
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if (tui.get_active_selection(self.allocator)) |text| {
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defer self.allocator.free(text);
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@memcpy(self.buf[0..text.len], text);
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self.input_ = self.buf[0..text.len];
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}
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var mode = try keybind.mode("mini/find_in_files", allocator, .{
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.insert_command = "mini_mode_insert_bytes",
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});
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mode.event_handler = EventHandler.to_owned(self);
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return .{ mode, .{ .name = name } };
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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.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 text: []const u8 = undefined;
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defer self.update_mini_mode_text();
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if (try m.match(.{"F"})) {
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self.start_query() 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.insert_bytes(text) 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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fn insert_code_point(self: *Self, c: u32) !void {
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if (self.input_.len + 6 >= self.buf.len)
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return;
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const bytes = try input.ucs32_to_utf8(&[_]u32{c}, self.buf[self.input_.len..]);
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self.input_ = self.buf[0 .. self.input_.len + bytes];
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}
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fn insert_bytes(self: *Self, bytes_: []const u8) !void {
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const bytes = bytes_[0..@min(self.buf.len - self.input_.len, bytes_.len)];
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const newlen = self.input_.len + bytes.len;
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@memcpy(self.buf[self.input_.len..newlen], bytes);
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self.input_ = self.buf[0..newlen];
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}
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fn start_query(self: *Self) !void {
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if (self.input_.len < 2 or eql(u8, self.input_, self.last_input))
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return;
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@memcpy(self.last_buf[0..self.input_.len], self.input_);
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self.last_input = self.last_buf[0..self.input_.len];
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try command.executeName("find_in_files_query", command.fmt(.{self.input_}));
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}
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fn update_mini_mode_text(self: *Self) void {
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if (tui.mini_mode()) |mini_mode| {
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mini_mode.text = self.input_;
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mini_mode.cursor = tui.egc_chunk_width(self.input_, 0, 1);
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}
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}
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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 Meta = command.Metadata;
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const Result = command.Result;
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pub fn mini_mode_reset(self: *Self, _: Ctx) Result {
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self.input_ = "";
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self.update_mini_mode_text();
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}
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pub const mini_mode_reset_meta: Meta = .{ .description = "Clear input" };
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pub fn mini_mode_cancel(_: *Self, _: Ctx) Result {
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command.executeName("close_find_in_files_results", .{}) catch {};
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command.executeName("exit_mini_mode", .{}) catch {};
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}
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pub const mini_mode_cancel_meta: Meta = .{ .description = "Cancel input" };
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pub fn mini_mode_select(_: *Self, _: Ctx) Result {
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command.executeName("goto_selected_file", .{}) catch {};
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return command.executeName("exit_mini_mode", .{});
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}
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pub const mini_mode_select_meta: Meta = .{ .description = "Select" };
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pub fn mini_mode_insert_code_point(self: *Self, ctx: Ctx) Result {
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var egc: u32 = 0;
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if (!try ctx.args.match(.{tp.extract(&egc)}))
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return error.InvalidFindInFilesInsertCodePointArgument;
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self.insert_code_point(egc) catch |e| return tp.exit_error(e, @errorReturnTrace());
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self.update_mini_mode_text();
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}
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pub const mini_mode_insert_code_point_meta: Meta = .{ .arguments = &.{.integer} };
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pub fn mini_mode_insert_bytes(self: *Self, ctx: Ctx) Result {
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var bytes: []const u8 = undefined;
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if (!try ctx.args.match(.{tp.extract(&bytes)}))
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return error.InvalidFindInFilesInsertBytesArgument;
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self.insert_bytes(bytes) catch |e| return tp.exit_error(e, @errorReturnTrace());
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self.update_mini_mode_text();
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}
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pub const mini_mode_insert_bytes_meta: Meta = .{ .arguments = &.{.string} };
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pub fn mini_mode_delete_backwards(self: *Self, _: Ctx) Result {
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self.input_ = self.input_[0 .. self.input_.len - tui.egc_last(self.input_).len];
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self.update_mini_mode_text();
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}
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pub const mini_mode_delete_backwards_meta: Meta = .{ .description = "Delete backwards" };
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pub fn mini_mode_paste(self: *Self, ctx: Ctx) Result {
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return mini_mode_insert_bytes(self, ctx);
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}
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pub const mini_mode_paste_meta: Meta = .{ .arguments = &.{.string} };
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};
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