devcleaner 0.1.2

A tool to search for node_modules an clean the projects selected
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use tui::{
    backend::Backend,
    layout::{Constraint, Rect},
    widgets::{Row, Table},
    Frame,
};

use super::{
    utils::{
        layout_block_active_span, style_highlight, style_primary, style_secondary,
        title_with_dual_style, vertical_chunks,
    },
    HIGHLIGHT,
};
use crate::app::App;

pub fn draw_help<B: Backend>(f: &mut Frame<B>, app: &mut App, area: Rect) {
    let chunks = vertical_chunks(vec![Constraint::Percentage(100)], area);

    // Create a one-column table to avoid flickering due to non-determinism when
    // resolving constraints on widths of table columns.
    let format_row =
        |r: &Vec<String>| -> Vec<String> { vec![format!("{:50}{:40}{:20}", r[0], r[1], r[2])] };

    let header = ["Key", "Action", "Context"];
    let header = format_row(&header.iter().map(|s| s.to_string()).collect());

    let help_docs = app
        .help_docs
        .items
        .iter()
        .map(format_row)
        .collect::<Vec<Vec<String>>>();
    let help_docs = &help_docs[0_usize..];

    let rows = help_docs
        .iter()
        .map(|item| Row::new(item.clone()).style(style_primary()));

    let title = title_with_dual_style("Help ".into(), "| close <esc>".into(), app.light_theme);

    let help_menu = Table::new(rows)
        .header(Row::new(header).style(style_secondary()).bottom_margin(0))
        .block(layout_block_active_span(title))
        .highlight_style(style_highlight())
        .highlight_symbol(HIGHLIGHT)
        .widths(&[Constraint::Max(110)]);
    f.render_stateful_widget(help_menu, chunks[0], &mut app.help_docs.state);
}