Yves Biener
a3d0b7af9a
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Zig Project Action / Lint, Spell-check and test zig project (push) Failing after 29s
86 lines
2.4 KiB
Zig
86 lines
2.4 KiB
Zig
//! Pop-up Menu widget to show the available keybindings
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const std = @import("std");
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const vaxis = @import("vaxis");
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const Zmd = @import("zmd").Zmd;
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const node2buffer = @import("node2buffer.zig");
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const widget = @import("../widget.zig");
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const Event = widget.Event;
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allocator: std.mem.Allocator = undefined,
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unicode: *const vaxis.Unicode = undefined,
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pub fn init(allocator: std.mem.Allocator, unicode: *const vaxis.Unicode) @This() {
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return .{
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.allocator = allocator,
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.unicode = unicode,
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};
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}
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pub fn deinit(this: *@This()) void {
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this.* = undefined;
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}
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/// Update loop for a given widget to react to the provided `Event`. It may
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/// change its internal state, update variables, react to user input, etc.
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pub fn update(this: *@This(), event: Event) ?Event {
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_ = this;
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switch (event) {
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.key_press => |key| {
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if (key.matches('a', .{})) {
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// About
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return .{ .path = "./doc/about.md" };
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}
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if (key.matches('h', .{})) {
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// Home
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return .{ .path = "./doc/home.md" };
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}
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if (key.matches('t', .{})) {
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// test
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return .{ .path = "./doc/test.md" };
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}
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},
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else => {},
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}
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return null;
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}
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/// Draw a given widget using the provided `vaxis.Window`. The window controls
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/// the dimension one widget may take on the screen. The widget itself has no
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/// control over this.
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pub fn draw(this: *@This(), win: vaxis.Window) void {
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var view = vaxis.widgets.View.init(this.allocator, this.unicode, .{ .width = win.width, .height = win.height }) catch @panic("OOM");
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defer view.deinit();
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const msg =
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\\# Goto
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\\
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\\**a** about
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\\**h** home
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\\**t** test
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;
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var zmd = Zmd.init(this.allocator);
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defer zmd.deinit();
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var cells = std.ArrayList(vaxis.Cell).init(this.allocator);
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defer cells.deinit();
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zmd.parse(msg) catch @panic("failed to parse markdown file");
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node2buffer.toBuffer(zmd.nodes.items[0], this.allocator, msg, &cells, .{}, null) catch @panic("failed to transform to cell array");
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var col: usize = 0;
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var row: usize = 0;
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for (cells.items) |cell| {
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view.writeCell(col, row, cell);
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if (std.mem.eql(u8, cell.char.grapheme, "\n")) {
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col = 0;
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row += 1;
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} else {
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col += 1;
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}
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}
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view.draw(win, .{});
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}
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