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