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|
mod line;
mod tab;
use std::cmp::{max, min};
use std::convert::TryInto;
use zellij_tile::prelude::*;
use crate::line::tab_line;
use crate::tab::tab_style;
#[derive(Debug, Default)]
pub struct LinePart {
part: String,
len: usize,
}
#[derive(Default)]
struct State {
tabs: Vec<TabInfo>,
active_tab_idx: usize,
mode_info: ModeInfo,
mouse_click_pos: usize,
should_render: bool,
}
static ARROW_SEPARATOR: &str = "";
register_plugin!(State);
impl ZellijPlugin for State {
fn load(&mut self) {
set_selectable(false);
subscribe(&[
EventType::TabUpdate,
EventType::ModeUpdate,
EventType::Mouse,
]);
}
fn update(&mut self, event: Event) {
match event {
Event::ModeUpdate(mode_info) => self.mode_info = mode_info,
Event::TabUpdate(tabs) => {
// tabs are indexed starting from 1 so we need to add 1
self.active_tab_idx = (&tabs).iter().position(|t| t.active).unwrap() + 1;
self.tabs = tabs;
}
Event::Mouse(me) => match me {
Mouse::LeftClick(_, col) => {
self.mouse_click_pos = col;
self.should_render = true;
}
Mouse::ScrollUp(_) => {
switch_tab_to(min(self.active_tab_idx + 1, self.tabs.len()) as u32);
}
Mouse::ScrollDown(_) => {
switch_tab_to(max(self.active_tab_idx.saturating_sub(1), 1) as u32);
}
_ => {}
},
_ => unimplemented!(), // FIXME: This should be unreachable, but this could be cleaner
}
}
fn render(&mut self, _rows: usize, cols: usize) {
if self.tabs.is_empty() {
return;
}
let mut all_tabs: Vec<LinePart> = vec![];
let mut active_tab_index = 0;
for t in self.tabs.iter_mut() {
let mut tabname = t.name.clone();
if t.active && self.mode_info.mode == InputMode::RenameTab {
if tabname.is_empty() {
tabname = String::from("Enter name...");
}
active_tab_index = t.position;
} else if t.active {
active_tab_index = t.position;
}
let tab = tab_style(
tabname,
t.active,
t.is_sync_panes_active,
self.mode_info.palette,
self.mode_info.capabilities,
);
all_tabs.push(tab);
}
let tab_line = tab_line(
self.mode_info.session_name.as_deref(),
all_tabs,
active_tab_index,
cols.saturating_sub(1),
self.mode_info.palette,
self.mode_info.capabilities,
);
let mut s = String::new();
let mut len_cnt = 0;
for (idx, bar_part) in tab_line.iter().enumerate() {
s = format!("{}{}", s, &bar_part.part);
if self.should_render
&& self.mouse_click_pos > len_cnt
&& self.mouse_click_pos <= len_cnt + bar_part.len
&& idx > 2
{
// First three elements of tab_line are "Zellij", session name and empty thing, hence the idx > 2 condition.
// Tabs are indexed starting from 1, therefore we need subtract 2 below.
switch_tab_to(TryInto::<u32>::try_into(idx).unwrap() - 2);
}
len_cnt += bar_part.len;
}
match self.mode_info.palette.gray {
PaletteColor::Rgb((r, g, b)) => {
println!("{}\u{1b}[48;2;{};{};{}m\u{1b}[0K", s, r, g, b);
}
PaletteColor::EightBit(color) => {
println!("{}\u{1b}[48;5;{}m\u{1b}[0K", s, color);
}
}
self.should_render = false;
}
}
|