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|
use crate::interactive::{
fit_string_graphemes_with_ellipsis, widgets::COLOR_MARKED_LIGHT, CursorDirection,
};
use dua::{
path_of,
traverse::{Tree, TreeIndex},
ByteFormat,
};
use itertools::Itertools;
use std::{borrow::Borrow, collections::btree_map::Entry, collections::BTreeMap, path::PathBuf};
use termion::{event::Key, event::Key::*};
use tui::{
buffer::Buffer,
layout::Rect,
layout::{Constraint, Direction, Layout},
style::{Color, Modifier, Style},
widgets::Block,
widgets::Borders,
widgets::Text,
widgets::{Paragraph, Widget},
};
use tui_react::{List, ListProps};
use unicode_segmentation::UnicodeSegmentation;
pub type EntryMarkMap = BTreeMap<TreeIndex, EntryMark>;
pub struct EntryMark {
pub size: u64,
pub path: PathBuf,
pub index: usize,
}
#[derive(Default)]
pub struct MarkPane {
selected: Option<usize>,
marked: EntryMarkMap,
list: List,
has_focus: bool,
last_sorting_index: usize,
}
pub struct MarkPaneProps {
pub border_style: Style,
pub format: ByteFormat,
}
impl MarkPane {
#[cfg(test)]
pub fn has_focus(&self) -> bool {
self.has_focus
}
pub fn set_focus(&mut self, has_focus: bool) {
self.has_focus = has_focus;
if has_focus {
self.selected = Some(self.marked.len().saturating_sub(1));
} else {
self.selected = None
}
}
pub fn toggle_index(mut self, index: TreeIndex, tree: &Tree) -> Option<Self> {
match self.marked.entry(index) {
Entry::Vacant(entry) => {
if let Some(e) = tree.node_weight(index) {
let sorting_index = self.last_sorting_index + 1;
self.last_sorting_index = sorting_index;
entry.insert(EntryMark {
size: e.size,
path: path_of(tree, index),
index: sorting_index,
});
}
}
Entry::Occupied(entry) => {
entry.remove();
}
};
if self.marked.is_empty() {
None
} else {
Some(self)
}
}
pub fn marked(&self) -> &EntryMarkMap {
&self.marked
}
pub fn key(&mut self, key: Key) {
match key {
Char('d') => self.remove_selected_and_move_down(),
Ctrl('u') | PageUp => self.change_selection(CursorDirection::PageUp),
Char('k') | Up => self.change_selection(CursorDirection::Up),
Char('j') | Down => self.change_selection(CursorDirection::Down),
Ctrl('d') | PageDown => self.change_selection(CursorDirection::PageDown),
_ => {}
};
}
fn remove_selected_and_move_down(&mut self) {
if let Some(selected) = self.selected {
let sorted_entries: Vec<_> = self
.marked
.iter()
.sorted_by_key(|(_, v)| &v.index)
.collect();
if let Some(idx) = sorted_entries.get(selected).map(|(k, _)| *k.to_owned()) {
self.marked.remove(&idx);
}
}
}
fn change_selection(&mut self, direction: CursorDirection) {
self.selected = self.selected.map(|selected| {
direction
.move_cursor(selected)
.min(self.marked.len().saturating_sub(1))
});
}
pub fn render(&mut self, props: impl Borrow<MarkPaneProps>, area: Rect, buf: &mut Buffer) {
let MarkPaneProps {
border_style,
format,
} = props.borrow();
let marked: &_ = &self.marked;
let title = format!(
"Marked {} items ({}) ",
marked.len(),
format.display(marked.iter().map(|(_k, v)| v.size).sum::<u64>())
);
let selected = self.selected;
let entries = marked
.values()
.sorted_by_key(|v| &v.index)
.enumerate()
.map(|(idx, v)| {
let modifier = match selected {
Some(selected) if idx == selected => Modifier::BOLD,
_ => Modifier::empty(),
};
let (path, path_len) = {
let path = format!(" {} ", v.path.display());
let num_path_graphemes = path.graphemes(true).count();
match num_path_graphemes + format.total_width() {
n if n > area.width as usize => {
let desired_size = num_path_graphemes - (n - area.width as usize);
fit_string_graphemes_with_ellipsis(
path,
num_path_graphemes,
desired_size,
)
}
_ => (path, num_path_graphemes),
}
};
let path = Text::Styled(
path.into(),
Style {
fg: COLOR_MARKED_LIGHT,
modifier,
..Style::default()
},
);
let bytes = Text::Styled(
format!(
"{:>byte_column_width$}",
format.display(v.size).to_string(), // we would have to impl alignment/padding ourselves otherwise...
byte_column_width = format.width()
)
.into(),
Style {
fg: Color::Green,
..Default::default()
},
);
let spacer = Text::Raw(
format!(
"{:-space$}",
"",
space = (area.width as usize)
.saturating_sub(path_len)
.saturating_sub(format.total_width())
)
.into(),
);
vec![path, spacer, bytes]
});
let entry_in_view = match self.selected {
Some(s) => Some(s),
None => {
self.list.offset = 0;
Some(marked.len().saturating_sub(1))
}
};
let mut block = Block::default()
.title(&title)
.border_style(*border_style)
.borders(Borders::ALL);
let inner_area = block.inner(area);
block.draw(area, buf);
let list_area = if self.has_focus {
let (help_line_area, list_area) = {
let regions = Layout::default()
.direction(Direction::Vertical)
.constraints([Constraint::Length(1), Constraint::Max(256)].as_ref())
.split(inner_area);
(regions[0], regions[1])
};
let default_style = Style {
fg: Color::Black,
bg: Color::White,
modifier: Modifier::BOLD,
..Default::default()
};
Paragraph::new(
[
Text::Styled(
" Ctrl + Shift + r".into(),
Style {
fg: Color::Red,
modifier: default_style.modifier | Modifier::RAPID_BLINK,
..default_style
},
),
Text::Styled(
" permanently deletes list without prompt".into(),
default_style,
),
]
.iter(),
)
.style(Style {
bg: Color::White,
..Style::default()
})
.draw(help_line_area, buf);
list_area
} else {
inner_area
};
let props = ListProps {
block: None,
entry_in_view,
};
self.list.render(props, entries, list_area, buf)
}
}
|
