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|
mod line;
mod tab;
use std::cmp::{max, min};
use std::collections::BTreeMap;
use std::convert::TryInto;
use tab::get_tab_to_focus;
use zellij_tile::prelude::*;
use crate::line::tab_line;
use crate::tab::tab_style;
#[derive(Debug, Default)]
pub struct LinePart {
part: String,
len: usize,
tab_index: Option<usize>,
}
impl LinePart {
pub fn append(&mut self, to_append: &LinePart) {
self.part.push_str(&to_append.part);
self.len += to_append.len;
}
}
#[derive(Default, Debug)]
struct State {
tabs: Vec<TabInfo>,
active_tab_idx: usize,
mode_info: ModeInfo,
tab_line: Vec<LinePart>,
hide_swap_layout_indication: bool,
cached_keybinds: KeybindsVec,
}
static ARROW_SEPARATOR: &str = "";
register_plugin!(State);
impl ZellijPlugin for State {
fn load(&mut self, configuration: BTreeMap<String, String>) {
self.hide_swap_layout_indication = configuration
.get("hide_swap_layout_indication")
.map(|s| s == "true")
.unwrap_or(false);
set_selectable(false);
subscribe(&[
EventType::TabUpdate,
EventType::ModeUpdate,
EventType::Mouse,
EventType::InitialKeybinds,
]);
}
fn update(&mut self, event: Event) -> bool {
let mut should_render = false;
match event {
Event::InitialKeybinds(keybinds) => {
self.cached_keybinds = keybinds;
if !self.cached_keybinds.is_empty() {
self.mode_info.keybinds = self.cached_keybinds.clone();
}
should_render = true;
},
Event::ModeUpdate(mut mode_info) => {
if mode_info.keybinds.is_empty() && !self.cached_keybinds.is_empty() {
mode_info.keybinds = self.cached_keybinds.clone();
} else if !mode_info.keybinds.is_empty() {
self.cached_keybinds = mode_info.keybinds.clone();
}
if self.mode_info != mode_info {
should_render = true;
}
self.mode_info = mode_info;
},
Event::TabUpdate(tabs) => {
if let Some(active_tab_index) = tabs.iter().position(|t| t.active) {
// tabs are indexed starting from 1 so we need to add 1
let active_tab_idx = active_tab_index + 1;
if self.active_tab_idx != active_tab_idx || self.tabs != tabs {
should_render = true;
}
self.active_tab_idx = active_tab_idx;
self.tabs = tabs;
} else {
eprintln!("Could not find active tab.");
}
},
Event::Mouse(me) => match me {
Mouse::LeftClick(_, col) => {
let tab_to_focus = get_tab_to_focus(&self.tab_line, self.active_tab_idx, col);
if let Some(idx) = tab_to_focus {
switch_tab_to(idx.try_into().unwrap());
}
},
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);
},
_ => {},
},
_ => {
eprintln!("Got unrecognized event: {:?}", event);
},
}
if self.tabs.is_empty() {
// no need to render if we have no tabs, this can sometimes happen on startup before we
// get the tab update and then we definitely don't want to render
should_render = false;
}
should_render
}
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;
let mut is_alternate_tab = false;
for t in &mut self.tabs {
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,
is_alternate_tab,
self.mode_info.style.colors,
self.mode_info.capabilities,
);
is_alternate_tab = !is_alternate_tab;
all_tabs.push(tab);
}
let background = self.mode_info.style.colors.text_unselected.background;
self.tab_line = tab_line(
self.mode_info.session_name.as_deref(),
all_tabs,
active_tab_index,
cols.saturating_sub(1),
self.mode_info.style.colors,
self.mode_info.capabilities,
self.mode_info.style.hide_session_name,
self.tabs.iter().find(|t| t.active),
&self.mode_info,
self.hide_swap_layout_indication,
&background,
);
let output = self
.tab_line
.iter()
.fold(String::new(), |output, part| output + &part.part);
match background {
PaletteColor::Rgb((r, g, b)) => {
print!("{}\u{1b}[48;2;{};{};{}m\u{1b}[0K", output, r, g, b);
},
PaletteColor::EightBit(color) => {
print!("{}\u{1b}[48;5;{}m\u{1b}[0K", output, color);
},
}
}
}
|
