flow/src/tui/home.zig

410 lines
15 KiB
Zig

const std = @import("std");
const build_options = @import("build_options");
const tp = @import("thespian");
const log = @import("log");
const cbor = @import("cbor");
const builtin = @import("builtin");
const Plane = @import("renderer").Plane;
const root = @import("root");
const Widget = @import("Widget.zig");
const Button = @import("Button.zig");
const Menu = @import("Menu.zig");
const tui = @import("tui.zig");
const command = @import("command");
const keybind = @import("keybind");
const fonts = @import("fonts.zig");
const style = struct {
title: []const u8 = root.application_title,
subtext: []const u8 = root.application_subtext,
centered: bool = false,
menu_commands: []const u8 = splice(if (build_options.gui)
\\find_file
\\create_new_file
\\open_file
\\open_recent_project
\\find_in_files
\\open_command_palette
\\select_task
\\add_task
\\open_config
\\open_gui_config
\\change_fontface
\\open_keybind_config
\\toggle_input_mode
\\change_theme
\\open_help
\\open_version_info
\\quit
else
\\find_file
\\create_new_file
\\open_file
\\open_recent_project
\\find_in_files
\\open_command_palette
\\select_task
\\add_task
\\open_config
\\open_keybind_config
\\toggle_input_mode
\\change_theme
\\open_help
\\open_version_info
\\quit
),
include_files: []const u8 = "",
};
pub const Style = style;
allocator: std.mem.Allocator,
plane: Plane,
parent: Plane,
fire: ?Fire = null,
commands: Commands = undefined,
menu: *Menu.State(*Self),
menu_w: usize = 0,
menu_len: usize = 0,
max_desc_len: usize = 0,
input_namespace: []const u8,
home_style: style,
home_style_bufs: [][]const u8,
const Self = @This();
pub fn create(allocator: std.mem.Allocator, parent: Widget) !Widget {
const logger = log.logger("home");
const self: *Self = try allocator.create(Self);
var n = try Plane.init(&(Widget.Box{}).opts("editor"), parent.plane.*);
errdefer n.deinit();
command.executeName("enter_mode", command.Context.fmt(.{"home"})) catch {};
const keybind_mode = tui.get_keybind_mode() orelse @panic("no active keybind mode");
const home_style, const home_style_bufs = root.read_config(style, allocator);
const w = Widget.to(self);
self.* = .{
.allocator = allocator,
.parent = parent.plane.*,
.plane = n,
.menu = try Menu.create(*Self, allocator, w.plane.*, .{ .ctx = self, .on_render = menu_on_render }),
.input_namespace = keybind.get_namespace(),
.home_style = home_style,
.home_style_bufs = home_style_bufs,
};
try self.commands.init(self);
var it = std.mem.splitAny(u8, self.home_style.menu_commands, "\n ");
while (it.next()) |command_name| {
self.menu_len += 1;
const id = command.get_id(command_name) orelse {
logger.print("{s} is not defined", .{command_name});
continue;
};
const description = command.get_description(id) orelse {
logger.print("{s} has no description", .{command_name});
continue;
};
var hints = std.mem.splitScalar(u8, keybind_mode.keybind_hints.get(command_name) orelse "", ',');
const hint = hints.first();
self.max_desc_len = @max(self.max_desc_len, description.len + hint.len + 5);
try self.add_menu_command(command_name, description, hint, self.menu);
}
self.position_menu(15, 9);
return w;
}
pub fn deinit(self: *Self, allocator: std.mem.Allocator) void {
root.free_config(self.allocator, self.home_style_bufs);
self.menu.deinit(allocator);
self.commands.deinit();
self.plane.deinit();
if (self.fire) |*fire| fire.deinit();
allocator.destroy(self);
}
fn add_menu_command(self: *Self, command_name: []const u8, description: []const u8, hint: []const u8, menu: anytype) !void {
const label_len = description.len + hint.len;
var buf: [64]u8 = undefined;
{
var fis = std.io.fixedBufferStream(&buf);
const writer = fis.writer();
const leader = if (hint.len > 0) "." else " ";
_ = try writer.write(description);
_ = try writer.write(" ");
_ = try writer.write(leader);
_ = try writer.write(leader);
for (0..(self.max_desc_len - label_len - 5)) |_|
_ = try writer.write(leader);
try writer.print(" :{s}", .{hint});
const label = fis.getWritten();
self.menu_w = @max(self.menu_w, label.len + 1);
}
var value = std.ArrayList(u8).init(self.allocator);
defer value.deinit();
const writer = value.writer();
try cbor.writeValue(writer, description);
try cbor.writeValue(writer, hint);
try cbor.writeValue(writer, command_name);
try menu.add_item_with_handler(value.items, menu_action);
}
pub fn update(self: *Self) void {
self.menu.update();
}
pub fn walk(self: *Self, walk_ctx: *anyopaque, f: Widget.WalkFn, w: *Widget) bool {
return self.menu.walk(walk_ctx, f) or f(walk_ctx, w);
}
pub fn receive(_: *Self, _: tp.pid_ref, m: tp.message) error{Exit}!bool {
var hover: bool = false;
if (try m.match(.{ "H", tp.extract(&hover) })) {
tui.rdr().request_mouse_cursor_default(hover);
tui.need_render();
return true;
}
return false;
}
fn menu_on_render(self: *Self, button: *Button.State(*Menu.State(*Self)), theme: *const Widget.Theme, selected: bool) bool {
var description: []const u8 = undefined;
var hint: []const u8 = undefined;
var command_name: []const u8 = undefined;
var iter = button.opts.label; // label contains cbor
if (!(cbor.matchString(&iter, &description) catch false))
description = "#ERROR#";
if (!(cbor.matchString(&iter, &hint) catch false))
hint = "";
if (!(cbor.matchString(&iter, &command_name) catch false))
command_name = "";
const label_len = description.len + hint.len;
var buf: [64]u8 = undefined;
const leader = blk: {
var fis = std.io.fixedBufferStream(&buf);
const writer = fis.writer();
const leader = if (hint.len > 0) "." else " ";
_ = writer.write(" ") catch return false;
_ = writer.write(leader) catch return false;
_ = writer.write(leader) catch return false;
for (0..(self.max_desc_len - label_len - 5)) |_|
_ = writer.write(leader) catch return false;
writer.print(" ", .{}) catch return false;
break :blk fis.getWritten();
};
const style_base = theme.editor;
const style_label = if (button.active) theme.editor_cursor else if (button.hover or selected) theme.editor_selection else style_base;
if (button.active or button.hover or selected) {
button.plane.set_base_style(style_base);
button.plane.erase();
} else {
button.plane.set_base_style_bg_transparent(" ", style_base);
}
button.plane.home();
button.plane.set_style(style_label);
if (button.active or button.hover or selected) {
button.plane.fill(" ");
button.plane.home();
}
const style_text = if (tui.find_scope_style(theme, "keyword")) |sty| sty.style else style_label;
const style_leader = if (tui.find_scope_style(theme, "comment")) |sty| sty.style else theme.editor;
const style_keybind = if (tui.find_scope_style(theme, "entity.name")) |sty| sty.style else style_label;
if (button.active) {
button.plane.set_style(style_label);
} else if (button.hover or selected) {
button.plane.set_style(style_text);
} else {
button.plane.set_style_bg_transparent(style_text);
}
const pointer = if (selected) "" else " ";
_ = button.plane.print("{s}{s}", .{ pointer, description }) catch {};
if (button.active or button.hover or selected) {
button.plane.set_style(style_leader);
} else {
button.plane.set_style_bg_transparent(style_leader);
}
_ = button.plane.print("{s}", .{leader}) catch {};
if (button.active or button.hover or selected) {
button.plane.set_style(style_keybind);
} else {
button.plane.set_style_bg_transparent(style_keybind);
}
_ = button.plane.print("{s}", .{hint}) catch {};
return false;
}
fn menu_action(_: **Menu.State(*Self), button: *Button.State(*Menu.State(*Self))) void {
var description: []const u8 = undefined;
var hint: []const u8 = undefined;
var command_name: []const u8 = undefined;
var iter = button.opts.label; // label contains cbor
if (!(cbor.matchString(&iter, &description) catch false))
description = "#ERROR#";
if (!(cbor.matchString(&iter, &hint) catch false))
hint = "";
if (!(cbor.matchString(&iter, &command_name) catch false))
command_name = "";
command.executeName(command_name, .{}) catch {};
}
pub fn render(self: *Self, theme: *const Widget.Theme) bool {
if (!std.mem.eql(u8, self.input_namespace, keybind.get_namespace()))
tp.self_pid().send(.{ "cmd", "show_home" }) catch {};
self.plane.set_base_style(theme.editor);
self.plane.erase();
self.plane.home();
if (self.fire) |*fire| fire.render();
const style_title = if (tui.find_scope_style(theme, "function")) |sty| sty.style else theme.editor;
const style_subtext = if (tui.find_scope_style(theme, "comment")) |sty| sty.style else theme.editor;
if (self.plane.dim_x() > 120 and self.plane.dim_y() > 22) {
self.plane.cursor_move_yx(2, self.centerI(4, self.home_style.title.len * 8)) catch return false;
fonts.print_string_large(&self.plane, self.home_style.title, style_title) catch return false;
self.plane.cursor_move_yx(10, self.centerI(8, self.home_style.subtext.len * 4)) catch return false;
fonts.print_string_medium(&self.plane, self.home_style.subtext, style_subtext) catch return false;
self.position_menu(self.v_center(15, self.menu_len, 15), self.center(10, self.menu_w));
} else if (self.plane.dim_x() > 55 and self.plane.dim_y() > 16) {
self.plane.cursor_move_yx(2, self.centerI(4, self.home_style.title.len * 4)) catch return false;
fonts.print_string_medium(&self.plane, self.home_style.title, style_title) catch return false;
self.plane.set_style_bg_transparent(style_subtext);
self.plane.cursor_move_yx(7, self.centerI(6, self.home_style.subtext.len)) catch return false;
_ = self.plane.print("{s}", .{self.home_style.subtext}) catch {};
self.plane.set_style(theme.editor);
self.position_menu(self.v_center(9, self.menu_len, 9), self.center(8, self.menu_w));
} else {
self.plane.set_style_bg_transparent(style_title);
self.plane.cursor_move_yx(1, self.centerI(4, self.home_style.title.len)) catch return false;
_ = self.plane.print("{s}", .{self.home_style.title}) catch return false;
self.plane.set_style_bg_transparent(style_subtext);
self.plane.cursor_move_yx(3, self.centerI(6, self.home_style.subtext.len)) catch return false;
_ = self.plane.print("{s}", .{self.home_style.subtext}) catch {};
self.plane.set_style(theme.editor);
const x = @min(self.plane.dim_x() -| 32, 8);
self.position_menu(self.v_center(5, self.menu_len, 5), self.center(x, self.menu_w));
}
self.plane.cursor_move_yx(
@intCast(self.plane.dim_y() - 2),
@intCast(@max(self.plane.dim_x(), root.version.len + 3) - root.version.len - 3),
) catch {};
self.plane.set_style_bg_transparent(style_subtext);
_ = self.plane.print("{s}", .{root.version}) catch return false;
if (builtin.mode == .Debug) {
const debug_warning_text = "debug build";
self.plane.cursor_move_yx(
@intCast(self.plane.dim_y() - 3),
@intCast(@max(self.plane.dim_x(), debug_warning_text.len + 3) - debug_warning_text.len - 3),
) catch {};
self.plane.set_style_bg_transparent(theme.editor_error);
_ = self.plane.print("{s}", .{debug_warning_text}) catch return false;
}
const more = self.menu.render(theme);
return more or self.fire != null;
}
fn position_menu(self: *Self, y: usize, x: usize) void {
const box = Widget.Box.from(self.plane);
self.menu.resize(.{ .y = box.y + y, .x = box.x + x, .w = self.menu_w });
}
fn center(self: *Self, non_centered: usize, w: usize) usize {
if (!self.home_style.centered) return non_centered;
const box = Widget.Box.from(self.plane);
const x = if (box.w > w) (box.w - w) / 2 else 0;
return box.x + x;
}
fn centerI(self: *Self, non_centered: usize, w: usize) c_int {
return @intCast(self.center(non_centered, w));
}
fn v_center(self: *Self, non_centered: usize, h: usize, minoffset: usize) usize {
if (!self.home_style.centered) return non_centered;
const box = Widget.Box.from(self.plane);
const y = if (box.h > h) (box.h - h) / 2 else 0;
return box.y + @max(y, minoffset);
}
pub fn handle_resize(self: *Self, pos: Widget.Box) void {
self.plane.move_yx(@intCast(pos.y), @intCast(pos.x)) catch return;
self.plane.resize_simple(@intCast(pos.h), @intCast(pos.w)) catch return;
if (self.fire) |*fire| {
fire.deinit();
self.fire = Fire.init(self.allocator, self.plane) catch return;
}
}
const Commands = command.Collection(cmds);
const cmds = struct {
pub const Target = Self;
const Ctx = command.Context;
const Meta = command.Metadata;
const Result = command.Result;
pub fn save_all(_: *Self, _: Ctx) Result {
if (tui.get_buffer_manager()) |bm|
bm.save_all() catch |e| return tp.exit_error(e, @errorReturnTrace());
}
pub const save_all_meta: Meta = .{ .description = "Save all changed files" };
pub fn home_menu_down(self: *Self, _: Ctx) Result {
self.menu.select_down();
}
pub const home_menu_down_meta: Meta = .{};
pub fn home_menu_up(self: *Self, _: Ctx) Result {
self.menu.select_up();
}
pub const home_menu_up_meta: Meta = .{};
pub fn home_menu_activate(self: *Self, _: Ctx) Result {
self.menu.activate_selected();
}
pub const home_menu_activate_meta: Meta = .{};
pub fn home_sheeran(self: *Self, _: Ctx) Result {
self.fire = if (self.fire) |*fire| ret: {
fire.deinit();
break :ret null;
} else try Fire.init(self.allocator, self.plane);
}
pub const home_sheeran_meta: Meta = .{};
};
const Fire = @import("Fire.zig");
fn splice(in: []const u8) []const u8 {
var out: []const u8 = "";
var it = std.mem.splitAny(u8, in, "\n ");
var first = true;
while (it.next()) |item| {
if (first) {
first = false;
} else {
out = out ++ " ";
}
out = out ++ item;
}
return out;
}