promkit 0.9.1

A toolkit for building your own interactive command-line tools
Documentation 
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use promkit_widgets::text_editor;

use crate::{
    crossterm::event::{Event, KeyCode, KeyEvent, KeyEventKind, KeyEventState, KeyModifiers},
    preset, PromptSignal,
};

pub type Keymap = fn(
    event: &Event,
    renderer: &mut preset::query_selector::render::Renderer,
) -> anyhow::Result<PromptSignal>;

pub fn default(
    event: &Event,
    renderer: &mut preset::query_selector::render::Renderer,
) -> anyhow::Result<PromptSignal> {
    let text_editor_after_mut = renderer.text_editor_snapshot.after_mut();
    let listbox_after_mut = renderer.listbox_snapshot.after_mut();

    match event {
        Event::Key(KeyEvent {
            code: KeyCode::Enter,
            modifiers: KeyModifiers::NONE,
            kind: KeyEventKind::Press,
            state: KeyEventState::NONE,
        }) => return Ok(PromptSignal::Quit),
        Event::Key(KeyEvent {
            code: KeyCode::Char('c'),
            modifiers: KeyModifiers::CONTROL,
            kind: KeyEventKind::Press,
            state: KeyEventState::NONE,
        }) => return Err(anyhow::anyhow!("ctrl+c")),

        // Move cursor.
        Event::Key(KeyEvent {
            code: KeyCode::Left,
            modifiers: KeyModifiers::NONE,
            kind: KeyEventKind::Press,
            state: KeyEventState::NONE,
        }) => {
            text_editor_after_mut.texteditor.backward();
        }
        Event::Key(KeyEvent {
            code: KeyCode::Right,
            modifiers: KeyModifiers::NONE,
            kind: KeyEventKind::Press,
            state: KeyEventState::NONE,
        }) => {
            text_editor_after_mut.texteditor.forward();
        }
        Event::Key(KeyEvent {
            code: KeyCode::Char('a'),
            modifiers: KeyModifiers::CONTROL,
            kind: KeyEventKind::Press,
            state: KeyEventState::NONE,
        }) => text_editor_after_mut.texteditor.move_to_head(),
        Event::Key(KeyEvent {
            code: KeyCode::Char('e'),
            modifiers: KeyModifiers::CONTROL,
            kind: KeyEventKind::Press,
            state: KeyEventState::NONE,
        }) => text_editor_after_mut.texteditor.move_to_tail(),

        // Erase char(s).
        Event::Key(KeyEvent {
            code: KeyCode::Backspace,
            modifiers: KeyModifiers::NONE,
            kind: KeyEventKind::Press,
            state: KeyEventState::NONE,
        }) => text_editor_after_mut.texteditor.erase(),
        Event::Key(KeyEvent {
            code: KeyCode::Char('u'),
            modifiers: KeyModifiers::CONTROL,
            kind: KeyEventKind::Press,
            state: KeyEventState::NONE,
        }) => text_editor_after_mut.texteditor.erase_all(),

        // Move cursor.
        Event::Key(KeyEvent {
            code: KeyCode::Up,
            modifiers: KeyModifiers::NONE,
            kind: KeyEventKind::Press,
            state: KeyEventState::NONE,
        }) => {
            listbox_after_mut.listbox.backward();
        }

        Event::Key(KeyEvent {
            code: KeyCode::Down,
            modifiers: KeyModifiers::NONE,
            kind: KeyEventKind::Press,
            state: KeyEventState::NONE,
        }) => {
            listbox_after_mut.listbox.forward();
        }

        // Input char.
        Event::Key(KeyEvent {
            code: KeyCode::Char(ch),
            modifiers: KeyModifiers::NONE,
            kind: KeyEventKind::Press,
            state: KeyEventState::NONE,
        })
        | Event::Key(KeyEvent {
            code: KeyCode::Char(ch),
            modifiers: KeyModifiers::SHIFT,
            kind: KeyEventKind::Press,
            state: KeyEventState::NONE,
        }) => match text_editor_after_mut.edit_mode {
            text_editor::Mode::Insert => text_editor_after_mut.texteditor.insert(*ch),
            text_editor::Mode::Overwrite => text_editor_after_mut.texteditor.overwrite(*ch),
        },

        _ => (),
    }
    Ok(PromptSignal::Continue)
}