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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>,
}
#[derive(Default)]
struct State {
tabs: Vec<TabInfo>,
active_tab_idx: usize,
mode_info: ModeInfo,
tab_line: Vec<LinePart>,
text_copy_destination: Option<CopyDestination>,
display_system_clipboard_failure: bool,
own_client_id: Option<ClientId>,
grouped_panes_count: Option<usize>,
}
static ARROW_SEPARATOR: &str = "";
register_plugin!(State);
impl ZellijPlugin for State {
fn load(&mut self, _configuration: BTreeMap<String, String>) {
set_selectable(false);
subscribe(&[
EventType::TabUpdate,
EventType::ModeUpdate,
EventType::Mouse,
EventType::CopyToClipboard,
EventType::InputReceived,
EventType::SystemClipboardFailure,
EventType::PaneUpdate,
]);
self.own_client_id = Some(get_plugin_ids().client_id);
}
fn update(&mut self, event: Event) -> bool {
let mut should_render = false;
match event {
Event::ModeUpdate(mode_info) => {
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);
},
_ => {},
},
Event::CopyToClipboard(copy_destination) => {
match self.text_copy_destination {
Some(text_copy_destination) => {
if text_copy_destination != copy_destination {
should_render = true;
}
},
None => {
should_render = true;
},
}
self.text_copy_destination = Some(copy_destination);
},
Event::SystemClipboardFailure => {
should_render = true;
self.display_system_clipboard_failure = true;
},
Event::InputReceived => {
if self.text_copy_destination.is_some()
|| self.display_system_clipboard_failure == true
{
should_render = true;
}
self.text_copy_destination = None;
self.display_system_clipboard_failure = false;
},
Event::PaneUpdate(pane_manifest) => {
if let Some(own_client_id) = self.own_client_id {
let mut grouped_panes_count = 0;
for (_tab_index, pane_infos) in pane_manifest.panes {
for pane_info in pane_infos {
let is_in_pane_group =
pane_info.index_in_pane_group.get(&own_client_id).is_some();
if is_in_pane_group {
grouped_panes_count += 1;
}
}
}
if Some(grouped_panes_count) != self.grouped_panes_count {
if grouped_panes_count == 0 {
self.grouped_panes_count = None;
} else {
self.grouped_panes_count = Some(grouped_panes_count);
}
should_render = true;
}
}
},
_ => {
eprintln!("Got unrecognized event: {:?}", event);
},
};
should_render
}
fn render(&mut self, _rows: usize, cols: usize) {
if let Some(copy_destination) = self.text_copy_destination {
let hint = text_copied_hint(copy_destination).part;
let background = self.mode_info.style.colors.text_unselected.background;
match background {
PaletteColor::Rgb((r, g, b)) => {
print!("{}\u{1b}[48;2;{};{};{}m\u{1b}[0K", hint, r, g, b);
},
PaletteColor::EightBit(color) => {
print!("{}\u{1b}[48;5;{}m\u{1b}[0K", hint, color);
},
}
} else if self.display_system_clipboard_failure {
let hint = system_clipboard_error().part;
let background = self.mode_info.style.colors.text_unselected.background;
match background {
PaletteColor::Rgb((r, g, b)) => {
print!("{}\u{1b}[48;2;{};{};{}m\u{1b}[0K", hint, r, g, b);
},
PaletteColor::EightBit(color) => {
print!("{}\u{1b}[48;5;{}m\u{1b}[0K", hint, color);
},
}
} else {
if self.tabs.is_empty() {
return;
}
let mut all_tabs: Vec<LinePart> = vec![];
let mut active_tab_index = 0;
let mut active_swap_layout_name = None;
let mut is_swap_layout_dirty = false;
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;
is_swap_layout_dirty = t.is_swap_layout_dirty;
active_swap_layout_name = t.active_swap_layout_name.clone();
}
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);
}
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.mode_info.mode,
&active_swap_layout_name,
is_swap_layout_dirty,
&self.mode_info,
self.grouped_panes_count,
);
let output = self
.tab_line
.iter()
.fold(String::new(), |output, part| output + &part.part);
let background = self.mode_info.style.colors.text_unselected.background;
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);
},
}
}
}
}
pub fn text_copied_hint(copy_destination: CopyDestination) -> LinePart {
let hint = match copy_destination {
CopyDestination::Command => "Text piped to external command",
#[cfg(not(target_os = "macos"))]
CopyDestination::Primary => "Text copied to system primary selection",
#[cfg(target_os = "macos")] // primary selection does not exist on macos
CopyDestination::Primary => "Text copied to system clipboard",
CopyDestination::System => "Text copied to system clipboard",
};
LinePart {
part: serialize_text(&Text::new(&hint).color_range(2, ..).opaque()),
len: hint.len(),
tab_index: None,
}
}
pub fn system_clipboard_error() -> LinePart {
let hint = " Error using the system clipboard.";
LinePart {
part: serialize_text(&Text::new(&hint).color_range(2, ..).opaque()),
len: hint.len(),
tab_index: None,
}
}
|
