zellij/zellij-server/src/tab.rs
Aram Drevekenin a99354a155
refactor(screen): more multiple-users groundwork (#788)
* refactor(screen): support multiple mirrored clients

* style(fmt): make rustfmt happy

* style(clippy): make clippy happy

* whitespace

* github, y u no update CI?!

* is this a cache issue?

* is it the checkout cache?

* no cache at all?

* Debug

* fix gototab

* decoment

* gototab none in wasm_vm

* gototab none in wasm_vm

* the fun never ends

* style(fmt): make rustfmt happy
2021-10-20 10:37:38 +02:00

2664 lines
111 KiB
Rust

//! `Tab`s holds multiple panes. It tracks their coordinates (x/y) and size,
//! as well as how they should be resized
use zellij_utils::{position::Position, serde, zellij_tile};
use crate::ui::pane_resizer::PaneResizer;
use crate::{
os_input_output::ServerOsApi,
panes::{PaneId, PluginPane, TerminalPane},
pty::{PtyInstruction, VteBytes},
thread_bus::ThreadSenders,
ui::boundaries::Boundaries,
wasm_vm::PluginInstruction,
ClientId, ServerInstruction,
};
use serde::{Deserialize, Serialize};
use std::os::unix::io::RawFd;
use std::sync::mpsc::channel;
use std::time::Instant;
use std::{
cmp::Reverse,
collections::{BTreeMap, HashMap, HashSet},
};
use zellij_tile::data::{Event, InputMode, ModeInfo, Palette, PaletteColor};
use zellij_utils::{
input::{
layout::{Direction, Layout, Run},
parse_keys,
},
pane_size::{Dimension, Offset, PaneGeom, Size, Viewport},
};
const CURSOR_HEIGHT_WIDTH_RATIO: usize = 4; // this is not accurate and kind of a magic number, TODO: look into this
// FIXME: This should be replaced by `RESIZE_PERCENT` at some point
const MIN_TERMINAL_HEIGHT: usize = 5;
const MIN_TERMINAL_WIDTH: usize = 5;
const RESIZE_PERCENT: f64 = 5.0;
const MAX_PENDING_VTE_EVENTS: usize = 7000;
type BorderAndPaneIds = (usize, Vec<PaneId>);
fn split(direction: Direction, rect: &PaneGeom) -> Option<(PaneGeom, PaneGeom)> {
let space = match direction {
Direction::Vertical => rect.cols,
Direction::Horizontal => rect.rows,
};
if let Some(p) = space.as_percent() {
let first_rect = match direction {
Direction::Vertical => PaneGeom {
cols: Dimension::percent(p / 2.0),
..*rect
},
Direction::Horizontal => PaneGeom {
rows: Dimension::percent(p / 2.0),
..*rect
},
};
let second_rect = match direction {
Direction::Vertical => PaneGeom {
x: first_rect.x + 1,
cols: first_rect.cols,
..*rect
},
Direction::Horizontal => PaneGeom {
y: first_rect.y + 1,
rows: first_rect.rows,
..*rect
},
};
Some((first_rect, second_rect))
} else {
None
}
}
fn pane_content_offset(position_and_size: &PaneGeom, viewport: &Viewport) -> (usize, usize) {
// (columns_offset, rows_offset)
// if the pane is not on the bottom or right edge on the screen, we need to reserve one space
// from its content to leave room for the boundary between it and the next pane (if it doesn't
// draw its own frame)
let columns_offset = if position_and_size.x + position_and_size.cols.as_usize() < viewport.cols
{
1
} else {
0
};
let rows_offset = if position_and_size.y + position_and_size.rows.as_usize() < viewport.rows {
1
} else {
0
};
(columns_offset, rows_offset)
}
#[derive(Clone, Debug, Default)]
pub struct Output {
pub client_render_instructions: HashMap<ClientId, String>,
}
impl Output {
pub fn add_clients(&mut self, client_ids: &HashSet<ClientId>) {
for client_id in client_ids {
self.client_render_instructions
.insert(*client_id, String::new());
}
}
pub fn push_str_to_all_clients(&mut self, to_push: &str) {
for render_instruction in self.client_render_instructions.values_mut() {
render_instruction.push_str(to_push)
}
}
}
pub(crate) struct Tab {
pub index: usize,
pub position: usize,
pub name: String,
panes: BTreeMap<PaneId, Box<dyn Pane>>,
pub panes_to_hide: HashSet<PaneId>,
active_terminal: Option<PaneId>,
max_panes: Option<usize>,
viewport: Viewport, // includes all non-UI panes
display_area: Size, // includes all panes (including eg. the status bar and tab bar in the default layout)
fullscreen_is_active: bool,
os_api: Box<dyn ServerOsApi>,
pub senders: ThreadSenders,
synchronize_is_active: bool,
should_clear_display_before_rendering: bool,
pub mode_info: ModeInfo,
pub colors: Palette,
connected_clients: HashSet<ClientId>,
draw_pane_frames: bool,
pending_vte_events: HashMap<RawFd, Vec<VteBytes>>,
}
#[derive(Clone, Debug, Default, Serialize, Deserialize)]
#[serde(crate = "self::serde")]
pub(crate) struct TabData {
pub position: usize,
pub name: String,
pub active: bool,
pub mode_info: ModeInfo,
pub colors: Palette,
}
// FIXME: Use a struct that has a pane_type enum, to reduce all of the duplication
pub trait Pane {
fn x(&self) -> usize;
fn y(&self) -> usize;
fn rows(&self) -> usize;
fn cols(&self) -> usize;
fn get_content_x(&self) -> usize;
fn get_content_y(&self) -> usize;
fn get_content_columns(&self) -> usize;
fn get_content_rows(&self) -> usize;
fn reset_size_and_position_override(&mut self);
fn set_geom(&mut self, position_and_size: PaneGeom);
fn get_geom_override(&mut self, pane_geom: PaneGeom);
fn handle_pty_bytes(&mut self, bytes: VteBytes);
fn cursor_coordinates(&self) -> Option<(usize, usize)>;
fn adjust_input_to_terminal(&self, input_bytes: Vec<u8>) -> Vec<u8>;
fn position_and_size(&self) -> PaneGeom;
fn current_geom(&self) -> PaneGeom;
fn geom_override(&self) -> Option<PaneGeom>;
fn should_render(&self) -> bool;
fn set_should_render(&mut self, should_render: bool);
fn set_should_render_boundaries(&mut self, _should_render: bool) {}
fn selectable(&self) -> bool;
fn set_selectable(&mut self, selectable: bool);
fn render(&mut self) -> Option<String>;
fn pid(&self) -> PaneId;
fn reduce_height(&mut self, percent: f64);
fn increase_height(&mut self, percent: f64);
fn reduce_width(&mut self, percent: f64);
fn increase_width(&mut self, percent: f64);
fn push_down(&mut self, count: usize);
fn push_right(&mut self, count: usize);
fn pull_left(&mut self, count: usize);
fn pull_up(&mut self, count: usize);
fn scroll_up(&mut self, count: usize);
fn scroll_down(&mut self, count: usize);
fn clear_scroll(&mut self);
fn is_scrolled(&self) -> bool;
fn active_at(&self) -> Instant;
fn set_active_at(&mut self, instant: Instant);
fn set_frame(&mut self, frame: bool);
fn set_content_offset(&mut self, offset: Offset);
fn cursor_shape_csi(&self) -> String {
"\u{1b}[0 q".to_string() // default to non blinking block
}
fn contains(&self, position: &Position) -> bool {
match self.geom_override() {
Some(position_and_size) => position_and_size.contains(position),
None => self.position_and_size().contains(position),
}
}
fn start_selection(&mut self, _start: &Position) {}
fn update_selection(&mut self, _position: &Position) {}
fn end_selection(&mut self, _end: Option<&Position>) {}
fn reset_selection(&mut self) {}
fn get_selected_text(&self) -> Option<String> {
None
}
fn right_boundary_x_coords(&self) -> usize {
self.x() + self.cols()
}
fn bottom_boundary_y_coords(&self) -> usize {
self.y() + self.rows()
}
fn is_directly_right_of(&self, other: &dyn Pane) -> bool {
self.x() == other.x() + other.cols()
}
fn is_directly_left_of(&self, other: &dyn Pane) -> bool {
self.x() + self.cols() == other.x()
}
fn is_directly_below(&self, other: &dyn Pane) -> bool {
self.y() == other.y() + other.rows()
}
fn is_directly_above(&self, other: &dyn Pane) -> bool {
self.y() + self.rows() == other.y()
}
fn horizontally_overlaps_with(&self, other: &dyn Pane) -> bool {
(self.y() >= other.y() && self.y() < (other.y() + other.rows()))
|| ((self.y() + self.rows()) <= (other.y() + other.rows())
&& (self.y() + self.rows()) > other.y())
|| (self.y() <= other.y() && (self.y() + self.rows() >= (other.y() + other.rows())))
|| (other.y() <= self.y() && (other.y() + other.rows() >= (self.y() + self.rows())))
}
fn get_horizontal_overlap_with(&self, other: &dyn Pane) -> usize {
std::cmp::min(self.y() + self.rows(), other.y() + other.rows())
- std::cmp::max(self.y(), other.y())
}
fn vertically_overlaps_with(&self, other: &dyn Pane) -> bool {
(self.x() >= other.x() && self.x() < (other.x() + other.cols()))
|| ((self.x() + self.cols()) <= (other.x() + other.cols())
&& (self.x() + self.cols()) > other.x())
|| (self.x() <= other.x() && (self.x() + self.cols() >= (other.x() + other.cols())))
|| (other.x() <= self.x() && (other.x() + other.cols() >= (self.x() + self.cols())))
}
fn get_vertical_overlap_with(&self, other: &dyn Pane) -> usize {
std::cmp::min(self.x() + self.cols(), other.x() + other.cols())
- std::cmp::max(self.x(), other.x())
}
fn can_reduce_height_by(&self, reduce_by: usize) -> bool {
self.rows() > reduce_by && self.rows() - reduce_by >= self.min_height()
}
fn can_reduce_width_by(&self, reduce_by: usize) -> bool {
self.cols() > reduce_by && self.cols() - reduce_by >= self.min_width()
}
fn min_width(&self) -> usize {
MIN_TERMINAL_WIDTH
}
fn min_height(&self) -> usize {
MIN_TERMINAL_HEIGHT
}
fn drain_messages_to_pty(&mut self) -> Vec<Vec<u8>> {
// TODO: this is only relevant to terminal panes
// we should probably refactor away from this trait at some point
vec![]
}
fn render_full_viewport(&mut self) {}
fn relative_position(&self, position_on_screen: &Position) -> Position {
position_on_screen.relative_to(self.get_content_y(), self.get_content_x())
}
fn set_boundary_color(&mut self, _color: Option<PaletteColor>) {}
fn set_borderless(&mut self, borderless: bool);
fn borderless(&self) -> bool;
}
macro_rules! resize_pty {
($pane:expr, $os_input:expr) => {
if let PaneId::Terminal(ref pid) = $pane.pid() {
// FIXME: This `set_terminal_size_using_fd` call would be best in
// `TerminalPane::reflow_lines`
$os_input.set_terminal_size_using_fd(
*pid,
$pane.get_content_columns() as u16,
$pane.get_content_rows() as u16,
);
}
};
}
impl Tab {
// FIXME: Still too many arguments for clippy to be happy...
#[allow(clippy::too_many_arguments)]
pub fn new(
index: usize,
position: usize,
name: String,
display_area: Size,
os_api: Box<dyn ServerOsApi>,
senders: ThreadSenders,
max_panes: Option<usize>,
mode_info: ModeInfo,
colors: Palette,
draw_pane_frames: bool,
client_id: ClientId,
) -> Self {
let panes = BTreeMap::new();
let name = if name.is_empty() {
format!("Tab #{}", index + 1)
} else {
name
};
let mut connected_clients = HashSet::new();
connected_clients.insert(client_id);
Tab {
index,
position,
panes,
name,
max_panes,
panes_to_hide: HashSet::new(),
active_terminal: None,
viewport: display_area.into(),
display_area,
fullscreen_is_active: false,
synchronize_is_active: false,
os_api,
senders,
should_clear_display_before_rendering: false,
mode_info,
colors,
draw_pane_frames,
pending_vte_events: HashMap::new(),
connected_clients,
}
}
pub fn apply_layout(&mut self, layout: Layout, new_pids: Vec<RawFd>, tab_index: usize) {
// TODO: this should be an attribute on Screen instead of full_screen_ws
let free_space = PaneGeom::default();
self.panes_to_hide.clear();
let positions_in_layout = layout.position_panes_in_space(&free_space);
let mut positions_and_size = positions_in_layout.iter();
for (pane_kind, terminal_pane) in self.panes.iter_mut() {
// for now the layout only supports terminal panes
if let PaneId::Terminal(pid) = pane_kind {
match positions_and_size.next() {
Some(&(_, position_and_size)) => {
terminal_pane.reset_size_and_position_override();
terminal_pane.set_geom(position_and_size);
}
None => {
// we filled the entire layout, no room for this pane
// TODO: handle active terminal
self.panes_to_hide.insert(PaneId::Terminal(*pid));
}
}
}
}
let mut new_pids = new_pids.iter();
for (layout, position_and_size) in positions_and_size {
// A plugin pane
if let Some(Run::Plugin(run)) = layout.run.clone() {
let (pid_tx, pid_rx) = channel();
let pane_title = run.location.to_string();
self.senders
.send_to_plugin(PluginInstruction::Load(pid_tx, run, tab_index))
.unwrap();
let pid = pid_rx.recv().unwrap();
let mut new_plugin = PluginPane::new(
pid,
*position_and_size,
self.senders.to_plugin.as_ref().unwrap().clone(),
pane_title,
);
new_plugin.set_borderless(layout.borderless);
self.panes.insert(PaneId::Plugin(pid), Box::new(new_plugin));
// Send an initial mode update to the newly loaded plugin only!
self.senders
.send_to_plugin(PluginInstruction::Update(
Some(pid),
Event::ModeUpdate(self.mode_info.clone()),
))
.unwrap();
} else {
// there are still panes left to fill, use the pids we received in this method
let pid = new_pids.next().unwrap(); // if this crashes it means we got less pids than there are panes in this layout
let next_terminal_position = self.get_next_terminal_position();
let mut new_pane = TerminalPane::new(
*pid,
*position_and_size,
self.colors,
next_terminal_position,
);
new_pane.set_borderless(layout.borderless);
self.panes
.insert(PaneId::Terminal(*pid), Box::new(new_pane));
}
}
for unused_pid in new_pids {
// this is a bit of a hack and happens because we don't have any central location that
// can query the screen as to how many panes it needs to create a layout
// fixing this will require a bit of an architecture change
self.senders
.send_to_pty(PtyInstruction::ClosePane(PaneId::Terminal(*unused_pid)))
.unwrap();
}
// FIXME: This is another hack to crop the viewport to fixed-size panes. Once you can have
// non-fixed panes that are part of the viewport, get rid of this!
self.resize_whole_tab(self.display_area);
let boundary_geom: Vec<_> = self
.panes
.values()
.filter_map(|p| {
let geom = p.position_and_size();
if geom.cols.is_fixed() || geom.rows.is_fixed() {
Some(geom.into())
} else {
None
}
})
.collect();
for geom in boundary_geom {
self.offset_viewport(&geom)
}
self.set_pane_frames(self.draw_pane_frames);
// This is the end of the nasty viewport hack...
// FIXME: Active / new / current terminal, should be pane
self.active_terminal = self.panes.iter().map(|(id, _)| id.to_owned()).next();
}
pub fn add_client(&mut self, client_id: ClientId) {
self.connected_clients.insert(client_id);
// TODO: we might be able to avoid this, we do this so that newly connected clients will
// necessarily get a full render
self.set_force_render();
}
pub fn add_multiple_clients(&mut self, client_ids: &[ClientId]) {
for client_id in client_ids {
self.connected_clients.insert(*client_id);
}
}
pub fn remove_client(&mut self, client_id: ClientId) {
self.connected_clients.remove(&client_id);
}
pub fn drain_connected_clients(&mut self) -> Vec<ClientId> {
self.connected_clients.drain().collect()
}
pub fn new_pane(&mut self, pid: PaneId) {
self.close_down_to_max_terminals();
if self.fullscreen_is_active {
self.toggle_active_pane_fullscreen();
}
// TODO: check minimum size of active terminal
let (_largest_terminal_size, terminal_id_to_split) = self.get_panes().fold(
(0, None),
|(current_largest_terminal_size, current_terminal_id_to_split),
id_and_terminal_to_check| {
let (id_of_terminal_to_check, terminal_to_check) = id_and_terminal_to_check;
let terminal_size = (terminal_to_check.rows() * CURSOR_HEIGHT_WIDTH_RATIO)
* terminal_to_check.cols();
let terminal_can_be_split = terminal_to_check.cols() >= MIN_TERMINAL_WIDTH
&& terminal_to_check.rows() >= MIN_TERMINAL_HEIGHT
&& ((terminal_to_check.cols() > terminal_to_check.min_width() * 2)
|| (terminal_to_check.rows() > terminal_to_check.min_height() * 2));
if terminal_can_be_split && terminal_size > current_largest_terminal_size {
(terminal_size, Some(*id_of_terminal_to_check))
} else {
(current_largest_terminal_size, current_terminal_id_to_split)
}
},
);
if terminal_id_to_split.is_none() {
self.senders
.send_to_pty(PtyInstruction::ClosePane(pid)) // we can't open this pane, close the pty
.unwrap();
return; // likely no terminal large enough to split
}
let terminal_id_to_split = terminal_id_to_split.unwrap();
let next_terminal_position = self.get_next_terminal_position();
let terminal_to_split = self.panes.get_mut(&terminal_id_to_split).unwrap();
let terminal_ws = terminal_to_split.position_and_size();
if terminal_to_split.rows() * CURSOR_HEIGHT_WIDTH_RATIO > terminal_to_split.cols()
&& terminal_to_split.rows() > terminal_to_split.min_height() * 2
{
if let PaneId::Terminal(term_pid) = pid {
if let Some((top_winsize, bottom_winsize)) =
split(Direction::Horizontal, &terminal_ws)
{
let new_terminal = TerminalPane::new(
term_pid,
bottom_winsize,
self.colors,
next_terminal_position,
);
terminal_to_split.set_geom(top_winsize);
self.panes.insert(pid, Box::new(new_terminal));
self.relayout_tab(Direction::Vertical);
}
}
} else if terminal_to_split.cols() > terminal_to_split.min_width() * 2 {
if let PaneId::Terminal(term_pid) = pid {
if let Some((left_winsize, right_winsize)) =
split(Direction::Vertical, &terminal_ws)
{
let new_terminal = TerminalPane::new(
term_pid,
right_winsize,
self.colors,
next_terminal_position,
);
terminal_to_split.set_geom(left_winsize);
self.panes.insert(pid, Box::new(new_terminal));
self.relayout_tab(Direction::Horizontal);
}
}
}
self.active_terminal = Some(pid);
}
pub fn horizontal_split(&mut self, pid: PaneId) {
self.close_down_to_max_terminals();
if self.fullscreen_is_active {
self.toggle_active_pane_fullscreen();
}
if let PaneId::Terminal(term_pid) = pid {
let next_terminal_position = self.get_next_terminal_position();
let active_pane_id = &self.get_active_pane_id().unwrap();
let active_pane = self.panes.get_mut(active_pane_id).unwrap();
if active_pane.rows() < MIN_TERMINAL_HEIGHT * 2 {
self.senders
.send_to_pty(PtyInstruction::ClosePane(pid)) // we can't open this pane, close the pty
.unwrap();
return;
}
let terminal_ws = active_pane.position_and_size();
if let Some((top_winsize, bottom_winsize)) = split(Direction::Horizontal, &terminal_ws)
{
let new_terminal = TerminalPane::new(
term_pid,
bottom_winsize,
self.colors,
next_terminal_position,
);
active_pane.set_geom(top_winsize);
self.panes.insert(pid, Box::new(new_terminal));
self.active_terminal = Some(pid);
self.relayout_tab(Direction::Vertical);
}
}
}
pub fn vertical_split(&mut self, pid: PaneId) {
self.close_down_to_max_terminals();
if self.fullscreen_is_active {
self.toggle_active_pane_fullscreen();
}
if let PaneId::Terminal(term_pid) = pid {
// TODO: check minimum size of active terminal
let next_terminal_position = self.get_next_terminal_position();
let active_pane_id = &self.get_active_pane_id().unwrap();
let active_pane = self.panes.get_mut(active_pane_id).unwrap();
if active_pane.cols() < MIN_TERMINAL_WIDTH * 2 {
self.senders
.send_to_pty(PtyInstruction::ClosePane(pid)) // we can't open this pane, close the pty
.unwrap();
return;
}
let terminal_ws = active_pane.position_and_size();
if let Some((left_winsize, right_winsize)) = split(Direction::Vertical, &terminal_ws) {
let new_terminal =
TerminalPane::new(term_pid, right_winsize, self.colors, next_terminal_position);
active_pane.set_geom(left_winsize);
self.panes.insert(pid, Box::new(new_terminal));
}
self.active_terminal = Some(pid);
self.relayout_tab(Direction::Horizontal);
}
}
pub fn get_active_pane(&self) -> Option<&dyn Pane> {
self.get_active_pane_id()
.and_then(|ap| self.panes.get(&ap).map(Box::as_ref))
}
fn get_active_pane_id(&self) -> Option<PaneId> {
self.active_terminal
}
fn get_active_terminal_id(&self) -> Option<RawFd> {
if let Some(PaneId::Terminal(pid)) = self.active_terminal {
Some(pid)
} else {
None
}
}
pub fn has_terminal_pid(&self, pid: RawFd) -> bool {
self.panes.contains_key(&PaneId::Terminal(pid))
}
pub fn handle_pty_bytes(&mut self, pid: RawFd, bytes: VteBytes) {
if let Some(terminal_output) = self.panes.get_mut(&PaneId::Terminal(pid)) {
// If the pane is scrolled buffer the vte events
if terminal_output.is_scrolled() {
self.pending_vte_events.entry(pid).or_default().push(bytes);
if let Some(evs) = self.pending_vte_events.get(&pid) {
// Reset scroll - and process all pending events for this pane
if evs.len() >= MAX_PENDING_VTE_EVENTS {
terminal_output.clear_scroll();
self.process_pending_vte_events(pid);
}
}
return;
}
}
self.process_pty_bytes(pid, bytes);
}
pub fn process_pending_vte_events(&mut self, pid: RawFd) {
if let Some(pending_vte_events) = self.pending_vte_events.get_mut(&pid) {
let vte_events: Vec<VteBytes> = pending_vte_events.drain(..).collect();
for vte_event in vte_events {
self.process_pty_bytes(pid, vte_event);
}
}
}
fn process_pty_bytes(&mut self, pid: RawFd, bytes: VteBytes) {
// if we don't have the terminal in self.terminals it's probably because
// of a race condition where the terminal was created in pty but has not
// yet been created in Screen. These events are currently not buffered, so
// if you're debugging seemingly randomly missing stdout data, this is
// the reason
if let Some(terminal_output) = self.panes.get_mut(&PaneId::Terminal(pid)) {
terminal_output.handle_pty_bytes(bytes);
let messages_to_pty = terminal_output.drain_messages_to_pty();
for message in messages_to_pty {
self.write_to_pane_id(message, PaneId::Terminal(pid));
}
}
}
pub fn write_to_terminals_on_current_tab(&mut self, input_bytes: Vec<u8>) {
let pane_ids = self.get_pane_ids();
pane_ids.iter().for_each(|&pane_id| {
self.write_to_pane_id(input_bytes.clone(), pane_id);
});
}
pub fn write_to_active_terminal(&mut self, input_bytes: Vec<u8>) {
self.write_to_pane_id(input_bytes, self.get_active_pane_id().unwrap());
}
pub fn write_to_pane_id(&mut self, input_bytes: Vec<u8>, pane_id: PaneId) {
match pane_id {
PaneId::Terminal(active_terminal_id) => {
let active_terminal = self.panes.get(&pane_id).unwrap();
let adjusted_input = active_terminal.adjust_input_to_terminal(input_bytes);
self.os_api
.write_to_tty_stdin(active_terminal_id, &adjusted_input)
.expect("failed to write to terminal");
self.os_api
.tcdrain(active_terminal_id)
.expect("failed to drain terminal");
}
PaneId::Plugin(pid) => {
for key in parse_keys(&input_bytes) {
self.senders
.send_to_plugin(PluginInstruction::Update(Some(pid), Event::Key(key)))
.unwrap()
}
}
}
}
pub fn get_active_terminal_cursor_position(&self) -> Option<(usize, usize)> {
// (x, y)
let active_terminal = &self.get_active_pane()?;
active_terminal
.cursor_coordinates()
.map(|(x_in_terminal, y_in_terminal)| {
let x = active_terminal.x() + x_in_terminal;
let y = active_terminal.y() + y_in_terminal;
(x, y)
})
}
pub fn toggle_active_pane_fullscreen(&mut self) {
if let Some(active_pane_id) = self.get_active_pane_id() {
if self.fullscreen_is_active {
for terminal_id in self.panes_to_hide.iter() {
let pane = self.panes.get_mut(terminal_id).unwrap();
pane.set_should_render(true);
pane.set_should_render_boundaries(true);
}
let viewport_pane_ids: Vec<_> = self
.get_pane_ids()
.into_iter()
.filter(|id| !self.is_inside_viewport(id))
.collect();
for pid in viewport_pane_ids {
let viewport_pane = self.panes.get_mut(&pid).unwrap();
viewport_pane.reset_size_and_position_override();
}
self.panes_to_hide.clear();
let active_terminal = self.panes.get_mut(&active_pane_id).unwrap();
active_terminal.reset_size_and_position_override();
} else {
let panes = self.get_panes();
let pane_ids_to_hide = panes.filter_map(|(&id, _pane)| {
if id != active_pane_id && self.is_inside_viewport(&id) {
Some(id)
} else {
None
}
});
self.panes_to_hide = pane_ids_to_hide.collect();
if self.panes_to_hide.is_empty() {
// nothing to do, pane is already as fullscreen as it can be, let's bail
return;
} else {
// For all of the panes outside of the viewport staying on the fullscreen
// screen, switch them to using override positions as well so that the resize
// system doesn't get confused by viewport and old panes that no longer line up
let viewport_pane_ids: Vec<_> = self
.get_pane_ids()
.into_iter()
.filter(|id| !self.is_inside_viewport(id))
.collect();
for pid in viewport_pane_ids {
let viewport_pane = self.panes.get_mut(&pid).unwrap();
viewport_pane.get_geom_override(viewport_pane.position_and_size());
}
let active_terminal = self.panes.get_mut(&active_pane_id).unwrap();
let full_screen_geom = PaneGeom {
x: self.viewport.x,
y: self.viewport.y,
..Default::default()
};
active_terminal.get_geom_override(full_screen_geom);
}
}
self.set_force_render();
self.resize_whole_tab(self.display_area);
self.toggle_fullscreen_is_active();
}
}
pub fn is_fullscreen_active(&self) -> bool {
self.fullscreen_is_active
}
pub fn toggle_fullscreen_is_active(&mut self) {
self.fullscreen_is_active = !self.fullscreen_is_active;
}
pub fn set_force_render(&mut self) {
for pane in self.panes.values_mut() {
pane.set_should_render(true);
pane.set_should_render_boundaries(true);
pane.render_full_viewport();
}
}
pub fn is_sync_panes_active(&self) -> bool {
self.synchronize_is_active
}
pub fn toggle_sync_panes_is_active(&mut self) {
self.synchronize_is_active = !self.synchronize_is_active;
}
pub fn mark_active_pane_for_rerender(&mut self) {
if let Some(active_terminal) = self
.active_terminal
.and_then(|active_terminal_id| self.panes.get_mut(&active_terminal_id))
{
active_terminal.set_should_render(true)
}
}
pub fn set_pane_frames(&mut self, draw_pane_frames: bool) {
self.draw_pane_frames = draw_pane_frames;
self.should_clear_display_before_rendering = true;
let viewport = self.viewport;
for pane in self.panes.values_mut() {
if !pane.borderless() {
pane.set_frame(draw_pane_frames);
}
#[allow(clippy::if_same_then_else)]
if draw_pane_frames & !pane.borderless() {
// there's definitely a frame around this pane, offset its contents
pane.set_content_offset(Offset::frame(1));
} else if draw_pane_frames && pane.borderless() {
// there's no frame around this pane, and the tab isn't handling the boundaries
// between panes (they each draw their own frames as they please)
// this one doesn't - do not offset its content
pane.set_content_offset(Offset::default());
} else if !is_inside_viewport(&viewport, pane) {
// this pane is outside the viewport and has no border - it should not have an offset
pane.set_content_offset(Offset::default());
} else {
// no draw_pane_frames and this pane should have a separation to other panes
// according to its position in the viewport (eg. no separation if its at the
// viewport bottom) - offset its content accordingly
let position_and_size = pane.current_geom();
let (pane_columns_offset, pane_rows_offset) =
pane_content_offset(&position_and_size, &self.viewport);
pane.set_content_offset(Offset::shift(pane_rows_offset, pane_columns_offset));
}
resize_pty!(pane, self.os_api);
}
}
pub fn render(&mut self, output: &mut Output) {
if self.connected_clients.is_empty() || self.active_terminal.is_none() {
return;
}
for connected_client in self.connected_clients.iter() {
// TODO: move this out of the render function
self.senders
.send_to_pty(PtyInstruction::UpdateActivePane(
self.active_terminal,
*connected_client,
))
.unwrap();
}
output.add_clients(&self.connected_clients);
let mut boundaries = Boundaries::new(self.viewport);
let hide_cursor = "\u{1b}[?25l";
output.push_str_to_all_clients(hide_cursor);
if self.should_clear_display_before_rendering {
let clear_display = "\u{1b}[2J";
output.push_str_to_all_clients(clear_display);
self.should_clear_display_before_rendering = false;
}
for (_kind, pane) in self.panes.iter_mut() {
if !self.panes_to_hide.contains(&pane.pid()) {
match self.active_terminal.unwrap() == pane.pid() {
true => {
pane.set_active_at(Instant::now());
match self.mode_info.mode {
InputMode::Normal | InputMode::Locked => {
pane.set_boundary_color(Some(self.colors.green));
}
_ => {
pane.set_boundary_color(Some(self.colors.orange));
}
}
if !self.draw_pane_frames {
boundaries.add_rect(
pane.as_ref(),
self.mode_info.mode,
Some(self.colors),
)
}
}
false => {
pane.set_boundary_color(None);
if !self.draw_pane_frames {
boundaries.add_rect(pane.as_ref(), self.mode_info.mode, None);
}
}
}
if let Some(vte_output) = pane.render() {
// FIXME: Use Termion for cursor and style clearing?
output.push_str_to_all_clients(&format!(
"\u{1b}[{};{}H\u{1b}[m{}",
pane.y() + 1,
pane.x() + 1,
vte_output
));
}
}
}
if !self.draw_pane_frames {
output.push_str_to_all_clients(&boundaries.vte_output());
}
match self.get_active_terminal_cursor_position() {
Some((cursor_position_x, cursor_position_y)) => {
let show_cursor = "\u{1b}[?25h";
let change_cursor_shape = self.get_active_pane().unwrap().cursor_shape_csi();
let goto_cursor_position = &format!(
"\u{1b}[{};{}H\u{1b}[m{}",
cursor_position_y + 1,
cursor_position_x + 1,
change_cursor_shape
); // goto row/col
output.push_str_to_all_clients(show_cursor);
output.push_str_to_all_clients(goto_cursor_position);
}
None => {
let hide_cursor = "\u{1b}[?25l";
output.push_str_to_all_clients(hide_cursor);
}
}
}
fn get_panes(&self) -> impl Iterator<Item = (&PaneId, &Box<dyn Pane>)> {
self.panes.iter()
}
fn get_selectable_panes(&self) -> impl Iterator<Item = (&PaneId, &Box<dyn Pane>)> {
self.panes.iter().filter(|(_, p)| p.selectable())
}
fn get_next_terminal_position(&self) -> usize {
self.panes
.iter()
.filter(|(k, _)| match k {
PaneId::Plugin(_) => false,
PaneId::Terminal(_) => true,
})
.count()
+ 1
}
fn has_selectable_panes(&self) -> bool {
let mut all_terminals = self.get_selectable_panes();
all_terminals.next().is_some()
}
fn next_active_pane(&self, panes: &[PaneId]) -> Option<PaneId> {
panes
.iter()
.rev()
.find(|pid| self.panes.get(pid).unwrap().selectable())
.copied()
}
fn pane_ids_directly_left_of(&self, id: &PaneId) -> Option<Vec<PaneId>> {
let mut ids = vec![];
let terminal_to_check = self.panes.get(id).unwrap();
if terminal_to_check.x() == 0 {
return None;
}
for (&pid, terminal) in self.get_panes() {
if terminal.x() + terminal.cols() == terminal_to_check.x() {
ids.push(pid);
}
}
if ids.is_empty() {
None
} else {
Some(ids)
}
}
fn pane_ids_directly_right_of(&self, id: &PaneId) -> Option<Vec<PaneId>> {
let mut ids = vec![];
let terminal_to_check = self.panes.get(id).unwrap();
for (&pid, terminal) in self.get_panes() {
if terminal.x() == terminal_to_check.x() + terminal_to_check.cols() {
ids.push(pid);
}
}
if ids.is_empty() {
None
} else {
Some(ids)
}
}
fn pane_ids_directly_below(&self, id: &PaneId) -> Option<Vec<PaneId>> {
let mut ids = vec![];
let terminal_to_check = self.panes.get(id).unwrap();
for (&pid, terminal) in self.get_panes() {
if terminal.y() == terminal_to_check.y() + terminal_to_check.rows() {
ids.push(pid);
}
}
if ids.is_empty() {
None
} else {
Some(ids)
}
}
fn pane_ids_directly_above(&self, id: &PaneId) -> Option<Vec<PaneId>> {
let mut ids = vec![];
let terminal_to_check = self.panes.get(id).unwrap();
for (&pid, terminal) in self.get_panes() {
if terminal.y() + terminal.rows() == terminal_to_check.y() {
ids.push(pid);
}
}
if ids.is_empty() {
None
} else {
Some(ids)
}
}
fn panes_top_aligned_with_pane(&self, pane: &dyn Pane) -> Vec<&dyn Pane> {
self.panes
.keys()
.map(|t_id| self.panes.get(t_id).unwrap().as_ref())
.filter(|terminal| terminal.pid() != pane.pid() && terminal.y() == pane.y())
.collect()
}
fn panes_bottom_aligned_with_pane(&self, pane: &dyn Pane) -> Vec<&dyn Pane> {
self.panes
.keys()
.map(|t_id| self.panes.get(t_id).unwrap().as_ref())
.filter(|terminal| {
terminal.pid() != pane.pid()
&& terminal.y() + terminal.rows() == pane.y() + pane.rows()
})
.collect()
}
fn panes_right_aligned_with_pane(&self, pane: &dyn Pane) -> Vec<&dyn Pane> {
self.panes
.keys()
.map(|t_id| self.panes.get(t_id).unwrap().as_ref())
.filter(|terminal| {
terminal.pid() != pane.pid()
&& terminal.x() + terminal.cols() == pane.x() + pane.cols()
})
.collect()
}
fn panes_left_aligned_with_pane(&self, pane: &dyn Pane) -> Vec<&dyn Pane> {
self.panes
.keys()
.map(|t_id| self.panes.get(t_id).unwrap().as_ref())
.filter(|terminal| terminal.pid() != pane.pid() && terminal.x() == pane.x())
.collect()
}
fn right_aligned_contiguous_panes_above(
&self,
id: &PaneId,
terminal_borders_to_the_right: &HashSet<usize>,
) -> BorderAndPaneIds {
let mut terminals = vec![];
let terminal_to_check = self
.panes
.get(id)
.expect("terminal id does not exist")
.as_ref();
let mut right_aligned_terminals = self.panes_right_aligned_with_pane(terminal_to_check);
// terminals that are next to each other up to current
right_aligned_terminals.sort_by_key(|a| Reverse(a.y()));
for terminal in right_aligned_terminals {
let terminal_to_check = terminals.last().unwrap_or(&terminal_to_check);
if terminal.y() + terminal.rows() == terminal_to_check.y() {
terminals.push(terminal);
}
}
// top-most border aligned with a pane border to the right
let mut top_resize_border = 0;
for terminal in &terminals {
let bottom_terminal_boundary = terminal.y() + terminal.rows();
if terminal_borders_to_the_right
.get(&bottom_terminal_boundary)
.is_some()
&& top_resize_border < bottom_terminal_boundary
{
top_resize_border = bottom_terminal_boundary;
}
}
terminals.retain(|terminal| terminal.y() >= top_resize_border);
// if there are no adjacent panes to resize, we use the border of the main pane we're
// resizing
let top_resize_border = if terminals.is_empty() {
terminal_to_check.y()
} else {
top_resize_border
};
let terminal_ids: Vec<PaneId> = terminals.iter().map(|t| t.pid()).collect();
(top_resize_border, terminal_ids)
}
fn right_aligned_contiguous_panes_below(
&self,
id: &PaneId,
terminal_borders_to_the_right: &HashSet<usize>,
) -> BorderAndPaneIds {
let mut terminals = vec![];
let terminal_to_check = self
.panes
.get(id)
.expect("terminal id does not exist")
.as_ref();
let mut right_aligned_terminals = self.panes_right_aligned_with_pane(terminal_to_check);
// terminals that are next to each other up to current
right_aligned_terminals.sort_by_key(|a| a.y());
for terminal in right_aligned_terminals {
let terminal_to_check = terminals.last().unwrap_or(&terminal_to_check);
if terminal.y() == terminal_to_check.y() + terminal_to_check.rows() {
terminals.push(terminal);
}
}
// bottom-most border aligned with a pane border to the right
let mut bottom_resize_border = self.viewport.y + self.viewport.rows;
for terminal in &terminals {
let top_terminal_boundary = terminal.y();
if terminal_borders_to_the_right
.get(&(top_terminal_boundary))
.is_some()
&& top_terminal_boundary < bottom_resize_border
{
bottom_resize_border = top_terminal_boundary;
}
}
terminals.retain(|terminal| terminal.y() + terminal.rows() <= bottom_resize_border);
// if there are no adjacent panes to resize, we use the border of the main pane we're
// resizing
let bottom_resize_border = if terminals.is_empty() {
terminal_to_check.y() + terminal_to_check.rows()
} else {
bottom_resize_border
};
let terminal_ids: Vec<PaneId> = terminals.iter().map(|t| t.pid()).collect();
(bottom_resize_border, terminal_ids)
}
fn left_aligned_contiguous_panes_above(
&self,
id: &PaneId,
terminal_borders_to_the_left: &HashSet<usize>,
) -> BorderAndPaneIds {
let mut terminals = vec![];
let terminal_to_check = self
.panes
.get(id)
.expect("terminal id does not exist")
.as_ref();
let mut left_aligned_terminals = self.panes_left_aligned_with_pane(terminal_to_check);
// terminals that are next to each other up to current
left_aligned_terminals.sort_by_key(|a| Reverse(a.y()));
for terminal in left_aligned_terminals {
let terminal_to_check = terminals.last().unwrap_or(&terminal_to_check);
if terminal.y() + terminal.rows() == terminal_to_check.y() {
terminals.push(terminal);
}
}
// top-most border aligned with a pane border to the right
let mut top_resize_border = 0;
for terminal in &terminals {
let bottom_terminal_boundary = terminal.y() + terminal.rows();
if terminal_borders_to_the_left
.get(&bottom_terminal_boundary)
.is_some()
&& top_resize_border < bottom_terminal_boundary
{
top_resize_border = bottom_terminal_boundary;
}
}
terminals.retain(|terminal| terminal.y() >= top_resize_border);
// if there are no adjacent panes to resize, we use the border of the main pane we're
// resizing
let top_resize_border = if terminals.is_empty() {
terminal_to_check.y()
} else {
top_resize_border
};
let terminal_ids: Vec<PaneId> = terminals.iter().map(|t| t.pid()).collect();
(top_resize_border, terminal_ids)
}
fn left_aligned_contiguous_panes_below(
&self,
id: &PaneId,
terminal_borders_to_the_left: &HashSet<usize>,
) -> BorderAndPaneIds {
let mut terminals = vec![];
let terminal_to_check = self
.panes
.get(id)
.expect("terminal id does not exist")
.as_ref();
let mut left_aligned_terminals = self.panes_left_aligned_with_pane(terminal_to_check);
// terminals that are next to each other up to current
left_aligned_terminals.sort_by_key(|a| a.y());
for terminal in left_aligned_terminals {
let terminal_to_check = terminals.last().unwrap_or(&terminal_to_check);
if terminal.y() == terminal_to_check.y() + terminal_to_check.rows() {
terminals.push(terminal);
}
}
// bottom-most border aligned with a pane border to the left
let mut bottom_resize_border = self.viewport.y + self.viewport.rows;
for terminal in &terminals {
let top_terminal_boundary = terminal.y();
if terminal_borders_to_the_left
.get(&(top_terminal_boundary))
.is_some()
&& top_terminal_boundary < bottom_resize_border
{
bottom_resize_border = top_terminal_boundary;
}
}
terminals.retain(|terminal| {
// terminal.y() + terminal.rows() < bottom_resize_border
terminal.y() + terminal.rows() <= bottom_resize_border
});
// if there are no adjacent panes to resize, we use the border of the main pane we're
// resizing
let bottom_resize_border = if terminals.is_empty() {
terminal_to_check.y() + terminal_to_check.rows()
} else {
bottom_resize_border
};
let terminal_ids: Vec<PaneId> = terminals.iter().map(|t| t.pid()).collect();
(bottom_resize_border, terminal_ids)
}
fn top_aligned_contiguous_panes_to_the_left(
&self,
id: &PaneId,
terminal_borders_above: &HashSet<usize>,
) -> BorderAndPaneIds {
let mut terminals = vec![];
let terminal_to_check = self
.panes
.get(id)
.expect("terminal id does not exist")
.as_ref();
let mut top_aligned_terminals = self.panes_top_aligned_with_pane(terminal_to_check);
// terminals that are next to each other up to current
top_aligned_terminals.sort_by_key(|a| Reverse(a.x()));
for terminal in top_aligned_terminals {
let terminal_to_check = terminals.last().unwrap_or(&terminal_to_check);
if terminal.x() + terminal.cols() == terminal_to_check.x() {
terminals.push(terminal);
}
}
// leftmost border aligned with a pane border above
let mut left_resize_border = 0;
for terminal in &terminals {
let right_terminal_boundary = terminal.x() + terminal.cols();
if terminal_borders_above
.get(&right_terminal_boundary)
.is_some()
&& left_resize_border < right_terminal_boundary
{
left_resize_border = right_terminal_boundary;
}
}
terminals.retain(|terminal| terminal.x() >= left_resize_border);
// if there are no adjacent panes to resize, we use the border of the main pane we're
// resizing
let left_resize_border = if terminals.is_empty() {
terminal_to_check.x()
} else {
left_resize_border
};
let terminal_ids: Vec<PaneId> = terminals.iter().map(|t| t.pid()).collect();
(left_resize_border, terminal_ids)
}
fn top_aligned_contiguous_panes_to_the_right(
&self,
id: &PaneId,
terminal_borders_above: &HashSet<usize>,
) -> BorderAndPaneIds {
let mut terminals = vec![];
let terminal_to_check = self.panes.get(id).unwrap().as_ref();
let mut top_aligned_terminals = self.panes_top_aligned_with_pane(terminal_to_check);
// terminals that are next to each other up to current
top_aligned_terminals.sort_by_key(|a| a.x());
for terminal in top_aligned_terminals {
let terminal_to_check = terminals.last().unwrap_or(&terminal_to_check);
if terminal.x() == terminal_to_check.x() + terminal_to_check.cols() {
terminals.push(terminal);
}
}
// rightmost border aligned with a pane border above
let mut right_resize_border = self.viewport.x + self.viewport.cols;
for terminal in &terminals {
let left_terminal_boundary = terminal.x();
if terminal_borders_above
.get(&left_terminal_boundary)
.is_some()
&& right_resize_border > left_terminal_boundary
{
right_resize_border = left_terminal_boundary;
}
}
terminals.retain(|terminal| terminal.x() + terminal.cols() <= right_resize_border);
// if there are no adjacent panes to resize, we use the border of the main pane we're
// resizing
let right_resize_border = if terminals.is_empty() {
terminal_to_check.x() + terminal_to_check.cols()
} else {
right_resize_border
};
let terminal_ids: Vec<PaneId> = terminals.iter().map(|t| t.pid()).collect();
(right_resize_border, terminal_ids)
}
fn bottom_aligned_contiguous_panes_to_the_left(
&self,
id: &PaneId,
terminal_borders_below: &HashSet<usize>,
) -> BorderAndPaneIds {
let mut terminals = vec![];
let terminal_to_check = self.panes.get(id).unwrap().as_ref();
let mut bottom_aligned_terminals = self.panes_bottom_aligned_with_pane(terminal_to_check);
bottom_aligned_terminals.sort_by_key(|a| Reverse(a.x()));
// terminals that are next to each other up to current
for terminal in bottom_aligned_terminals {
let terminal_to_check = terminals.last().unwrap_or(&terminal_to_check);
if terminal.x() + terminal.cols() == terminal_to_check.x() {
terminals.push(terminal);
}
}
// leftmost border aligned with a pane border above
let mut left_resize_border = 0;
for terminal in &terminals {
let right_terminal_boundary = terminal.x() + terminal.cols();
if terminal_borders_below
.get(&right_terminal_boundary)
.is_some()
&& left_resize_border < right_terminal_boundary
{
left_resize_border = right_terminal_boundary;
}
}
terminals.retain(|terminal| terminal.x() >= left_resize_border);
// if there are no adjacent panes to resize, we use the border of the main pane we're
// resizing
let left_resize_border = if terminals.is_empty() {
terminal_to_check.x()
} else {
left_resize_border
};
let terminal_ids: Vec<PaneId> = terminals.iter().map(|t| t.pid()).collect();
(left_resize_border, terminal_ids)
}
fn bottom_aligned_contiguous_panes_to_the_right(
&self,
id: &PaneId,
terminal_borders_below: &HashSet<usize>,
) -> BorderAndPaneIds {
let mut terminals = vec![];
let terminal_to_check = self.panes.get(id).unwrap().as_ref();
let mut bottom_aligned_terminals = self.panes_bottom_aligned_with_pane(terminal_to_check);
bottom_aligned_terminals.sort_by_key(|a| a.x());
// terminals that are next to each other up to current
for terminal in bottom_aligned_terminals {
let terminal_to_check = terminals.last().unwrap_or(&terminal_to_check);
if terminal.x() == terminal_to_check.x() + terminal_to_check.cols() {
terminals.push(terminal);
}
}
// leftmost border aligned with a pane border above
let mut right_resize_border = self.viewport.x + self.viewport.cols;
for terminal in &terminals {
let left_terminal_boundary = terminal.x();
if terminal_borders_below
.get(&left_terminal_boundary)
.is_some()
&& right_resize_border > left_terminal_boundary
{
right_resize_border = left_terminal_boundary;
}
}
terminals.retain(|terminal| terminal.x() + terminal.cols() <= right_resize_border);
let right_resize_border = if terminals.is_empty() {
terminal_to_check.x() + terminal_to_check.cols()
} else {
right_resize_border
};
let terminal_ids: Vec<PaneId> = terminals.iter().map(|t| t.pid()).collect();
(right_resize_border, terminal_ids)
}
fn reduce_pane_height(&mut self, id: &PaneId, percent: f64) {
let terminal = self.panes.get_mut(id).unwrap();
terminal.reduce_height(percent);
}
fn increase_pane_height(&mut self, id: &PaneId, percent: f64) {
let terminal = self.panes.get_mut(id).unwrap();
terminal.increase_height(percent);
}
fn increase_pane_width(&mut self, id: &PaneId, percent: f64) {
let terminal = self.panes.get_mut(id).unwrap();
terminal.increase_width(percent);
}
fn reduce_pane_width(&mut self, id: &PaneId, percent: f64) {
let terminal = self.panes.get_mut(id).unwrap();
terminal.reduce_width(percent);
}
fn pane_is_between_vertical_borders(
&self,
id: &PaneId,
left_border_x: usize,
right_border_x: usize,
) -> bool {
let terminal = self
.panes
.get(id)
.expect("could not find terminal to check between borders");
terminal.x() >= left_border_x && terminal.x() + terminal.cols() <= right_border_x
}
fn pane_is_between_horizontal_borders(
&self,
id: &PaneId,
top_border_y: usize,
bottom_border_y: usize,
) -> bool {
let terminal = self
.panes
.get(id)
.expect("could not find terminal to check between borders");
terminal.y() >= top_border_y && terminal.y() + terminal.rows() <= bottom_border_y
}
fn reduce_pane_and_surroundings_up(&mut self, id: &PaneId, percent: f64) {
let mut terminals_below = self
.pane_ids_directly_below(id)
.expect("can't reduce pane size up if there are no terminals below");
let terminal_borders_below: HashSet<usize> = terminals_below
.iter()
.map(|t| self.panes.get(t).unwrap().x())
.collect();
let (left_resize_border, terminals_to_the_left) =
self.bottom_aligned_contiguous_panes_to_the_left(id, &terminal_borders_below);
let (right_resize_border, terminals_to_the_right) =
self.bottom_aligned_contiguous_panes_to_the_right(id, &terminal_borders_below);
terminals_below.retain(|t| {
self.pane_is_between_vertical_borders(t, left_resize_border, right_resize_border)
});
// FIXME: This checks that we aren't violating the resize constraints of the aligned panes
// above and below this one. This should be moved to a `can_resize` function eventually.
for terminal_id in terminals_to_the_left
.iter()
.chain(terminals_to_the_right.iter())
{
let pane = self.panes.get(terminal_id).unwrap();
if pane.current_geom().rows.as_percent().unwrap() - percent < RESIZE_PERCENT {
return;
}
}
self.reduce_pane_height(id, percent);
for terminal_id in terminals_below {
self.increase_pane_height(&terminal_id, percent);
}
for terminal_id in terminals_to_the_left
.iter()
.chain(terminals_to_the_right.iter())
{
self.reduce_pane_height(terminal_id, percent);
}
}
fn reduce_pane_and_surroundings_down(&mut self, id: &PaneId, percent: f64) {
let mut terminals_above = self
.pane_ids_directly_above(id)
.expect("can't reduce pane size down if there are no terminals above");
let terminal_borders_above: HashSet<usize> = terminals_above
.iter()
.map(|t| self.panes.get(t).unwrap().x())
.collect();
let (left_resize_border, terminals_to_the_left) =
self.top_aligned_contiguous_panes_to_the_left(id, &terminal_borders_above);
let (right_resize_border, terminals_to_the_right) =
self.top_aligned_contiguous_panes_to_the_right(id, &terminal_borders_above);
terminals_above.retain(|t| {
self.pane_is_between_vertical_borders(t, left_resize_border, right_resize_border)
});
// FIXME: This checks that we aren't violating the resize constraints of the aligned panes
// above and below this one. This should be moved to a `can_resize` function eventually.
for terminal_id in terminals_to_the_left
.iter()
.chain(terminals_to_the_right.iter())
{
let pane = self.panes.get(terminal_id).unwrap();
if pane.current_geom().rows.as_percent().unwrap() - percent < RESIZE_PERCENT {
return;
}
}
self.reduce_pane_height(id, percent);
for terminal_id in terminals_above {
self.increase_pane_height(&terminal_id, percent);
}
for terminal_id in terminals_to_the_left
.iter()
.chain(terminals_to_the_right.iter())
{
self.reduce_pane_height(terminal_id, percent);
}
}
fn reduce_pane_and_surroundings_right(&mut self, id: &PaneId, percent: f64) {
let mut terminals_to_the_left = self
.pane_ids_directly_left_of(id)
.expect("can't reduce pane size right if there are no terminals to the left");
let terminal_borders_to_the_left: HashSet<usize> = terminals_to_the_left
.iter()
.map(|t| self.panes.get(t).unwrap().y())
.collect();
let (top_resize_border, terminals_above) =
self.left_aligned_contiguous_panes_above(id, &terminal_borders_to_the_left);
let (bottom_resize_border, terminals_below) =
self.left_aligned_contiguous_panes_below(id, &terminal_borders_to_the_left);
terminals_to_the_left.retain(|t| {
self.pane_is_between_horizontal_borders(t, top_resize_border, bottom_resize_border)
});
// FIXME: This checks that we aren't violating the resize constraints of the aligned panes
// above and below this one. This should be moved to a `can_resize` function eventually.
for terminal_id in terminals_above.iter().chain(terminals_below.iter()) {
let pane = self.panes.get(terminal_id).unwrap();
if pane.current_geom().cols.as_percent().unwrap() - percent < RESIZE_PERCENT {
return;
}
}
self.reduce_pane_width(id, percent);
for terminal_id in terminals_to_the_left {
self.increase_pane_width(&terminal_id, percent);
}
for terminal_id in terminals_above.iter().chain(terminals_below.iter()) {
self.reduce_pane_width(terminal_id, percent);
}
}
fn reduce_pane_and_surroundings_left(&mut self, id: &PaneId, percent: f64) {
let mut terminals_to_the_right = self
.pane_ids_directly_right_of(id)
.expect("can't reduce pane size left if there are no terminals to the right");
let terminal_borders_to_the_right: HashSet<usize> = terminals_to_the_right
.iter()
.map(|t| self.panes.get(t).unwrap().y())
.collect();
let (top_resize_border, terminals_above) =
self.right_aligned_contiguous_panes_above(id, &terminal_borders_to_the_right);
let (bottom_resize_border, terminals_below) =
self.right_aligned_contiguous_panes_below(id, &terminal_borders_to_the_right);
terminals_to_the_right.retain(|t| {
self.pane_is_between_horizontal_borders(t, top_resize_border, bottom_resize_border)
});
// FIXME: This checks that we aren't violating the resize constraints of the aligned panes
// above and below this one. This should be moved to a `can_resize` function eventually.
for terminal_id in terminals_above.iter().chain(terminals_below.iter()) {
let pane = self.panes.get(terminal_id).unwrap();
if pane.current_geom().cols.as_percent().unwrap() - percent < RESIZE_PERCENT {
return;
}
}
self.reduce_pane_width(id, percent);
for terminal_id in terminals_to_the_right {
self.increase_pane_width(&terminal_id, percent);
}
for terminal_id in terminals_above.iter().chain(terminals_below.iter()) {
self.reduce_pane_width(terminal_id, percent);
}
}
fn increase_pane_and_surroundings_up(&mut self, id: &PaneId, percent: f64) {
let mut terminals_above = self
.pane_ids_directly_above(id)
.expect("can't increase pane size up if there are no terminals above");
let terminal_borders_above: HashSet<usize> = terminals_above
.iter()
.map(|t| self.panes.get(t).unwrap().x())
.collect();
let (left_resize_border, terminals_to_the_left) =
self.top_aligned_contiguous_panes_to_the_left(id, &terminal_borders_above);
let (right_resize_border, terminals_to_the_right) =
self.top_aligned_contiguous_panes_to_the_right(id, &terminal_borders_above);
terminals_above.retain(|t| {
self.pane_is_between_vertical_borders(t, left_resize_border, right_resize_border)
});
self.increase_pane_height(id, percent);
for terminal_id in terminals_above {
self.reduce_pane_height(&terminal_id, percent);
}
for terminal_id in terminals_to_the_left
.iter()
.chain(terminals_to_the_right.iter())
{
self.increase_pane_height(terminal_id, percent);
}
}
fn increase_pane_and_surroundings_down(&mut self, id: &PaneId, percent: f64) {
let mut terminals_below = self
.pane_ids_directly_below(id)
.expect("can't increase pane size down if there are no terminals below");
let terminal_borders_below: HashSet<usize> = terminals_below
.iter()
.map(|t| self.panes.get(t).unwrap().x())
.collect();
let (left_resize_border, terminals_to_the_left) =
self.bottom_aligned_contiguous_panes_to_the_left(id, &terminal_borders_below);
let (right_resize_border, terminals_to_the_right) =
self.bottom_aligned_contiguous_panes_to_the_right(id, &terminal_borders_below);
terminals_below.retain(|t| {
self.pane_is_between_vertical_borders(t, left_resize_border, right_resize_border)
});
self.increase_pane_height(id, percent);
for terminal_id in terminals_below {
self.reduce_pane_height(&terminal_id, percent);
}
for terminal_id in terminals_to_the_left
.iter()
.chain(terminals_to_the_right.iter())
{
self.increase_pane_height(terminal_id, percent);
}
}
fn increase_pane_and_surroundings_right(&mut self, id: &PaneId, percent: f64) {
let mut terminals_to_the_right = self
.pane_ids_directly_right_of(id)
.expect("can't increase pane size right if there are no terminals to the right");
let terminal_borders_to_the_right: HashSet<usize> = terminals_to_the_right
.iter()
.map(|t| {
return self.panes.get(t).unwrap().y();
})
.collect();
let (top_resize_border, terminals_above) =
self.right_aligned_contiguous_panes_above(id, &terminal_borders_to_the_right);
let (bottom_resize_border, terminals_below) =
self.right_aligned_contiguous_panes_below(id, &terminal_borders_to_the_right);
terminals_to_the_right.retain(|t| {
self.pane_is_between_horizontal_borders(t, top_resize_border, bottom_resize_border)
});
self.increase_pane_width(id, percent);
for terminal_id in terminals_to_the_right {
self.reduce_pane_width(&terminal_id, percent);
}
for terminal_id in terminals_above.iter().chain(terminals_below.iter()) {
self.increase_pane_width(terminal_id, percent);
}
}
fn increase_pane_and_surroundings_left(&mut self, id: &PaneId, percent: f64) {
let mut terminals_to_the_left = self
.pane_ids_directly_left_of(id)
.expect("can't increase pane size right if there are no terminals to the right");
let terminal_borders_to_the_left: HashSet<usize> = terminals_to_the_left
.iter()
.map(|t| self.panes.get(t).unwrap().y())
.collect();
let (top_resize_border, terminals_above) =
self.left_aligned_contiguous_panes_above(id, &terminal_borders_to_the_left);
let (bottom_resize_border, terminals_below) =
self.left_aligned_contiguous_panes_below(id, &terminal_borders_to_the_left);
terminals_to_the_left.retain(|t| {
self.pane_is_between_horizontal_borders(t, top_resize_border, bottom_resize_border)
});
self.increase_pane_width(id, percent);
for terminal_id in terminals_to_the_left {
self.reduce_pane_width(&terminal_id, percent);
}
for terminal_id in terminals_above.iter().chain(terminals_below.iter()) {
self.increase_pane_width(terminal_id, percent);
}
}
// FIXME: The if-let nesting and explicit `false`s are... suboptimal.
// FIXME: Quite a lot of duplication between these functions...
fn can_increase_pane_and_surroundings_right(&self, pane_id: &PaneId, increase_by: f64) -> bool {
if let Some(panes_to_the_right) = self.pane_ids_directly_right_of(pane_id) {
panes_to_the_right.iter().all(|id| {
let p = self.panes.get(id).unwrap();
if let Some(cols) = p.position_and_size().cols.as_percent() {
cols - increase_by >= RESIZE_PERCENT
} else {
false
}
})
} else {
false
}
}
fn can_increase_pane_and_surroundings_left(&self, pane_id: &PaneId, increase_by: f64) -> bool {
if let Some(panes_to_the_left) = self.pane_ids_directly_left_of(pane_id) {
panes_to_the_left.iter().all(|id| {
let p = self.panes.get(id).unwrap();
if let Some(cols) = p.position_and_size().cols.as_percent() {
cols - increase_by >= RESIZE_PERCENT
} else {
false
}
})
} else {
false
}
}
fn can_increase_pane_and_surroundings_down(&self, pane_id: &PaneId, increase_by: f64) -> bool {
if let Some(panes_below) = self.pane_ids_directly_below(pane_id) {
panes_below.iter().all(|id| {
let p = self.panes.get(id).unwrap();
if let Some(rows) = p.position_and_size().rows.as_percent() {
rows - increase_by >= RESIZE_PERCENT
} else {
false
}
})
} else {
false
}
}
fn can_increase_pane_and_surroundings_up(&self, pane_id: &PaneId, increase_by: f64) -> bool {
if let Some(panes_above) = self.pane_ids_directly_above(pane_id) {
panes_above.iter().all(|id| {
let p = self.panes.get(id).unwrap();
if let Some(rows) = p.position_and_size().rows.as_percent() {
rows - increase_by >= RESIZE_PERCENT
} else {
false
}
})
} else {
false
}
}
fn can_reduce_pane_and_surroundings_right(&self, pane_id: &PaneId, reduce_by: f64) -> bool {
let pane = self.panes.get(pane_id).unwrap();
if let Some(cols) = pane.position_and_size().cols.as_percent() {
let ids_left = self.pane_ids_directly_left_of(pane_id);
let flexible_left = self.ids_are_flexible(Direction::Horizontal, ids_left);
cols - reduce_by >= RESIZE_PERCENT && flexible_left
} else {
false
}
}
fn can_reduce_pane_and_surroundings_left(&self, pane_id: &PaneId, reduce_by: f64) -> bool {
let pane = self.panes.get(pane_id).unwrap();
if let Some(cols) = pane.position_and_size().cols.as_percent() {
let ids_right = self.pane_ids_directly_right_of(pane_id);
let flexible_right = self.ids_are_flexible(Direction::Horizontal, ids_right);
cols - reduce_by >= RESIZE_PERCENT && flexible_right
} else {
false
}
}
fn can_reduce_pane_and_surroundings_down(&self, pane_id: &PaneId, reduce_by: f64) -> bool {
let pane = self.panes.get(pane_id).unwrap();
if let Some(rows) = pane.position_and_size().rows.as_percent() {
let ids_above = self.pane_ids_directly_above(pane_id);
let flexible_above = self.ids_are_flexible(Direction::Vertical, ids_above);
rows - reduce_by >= RESIZE_PERCENT && flexible_above
} else {
false
}
}
fn can_reduce_pane_and_surroundings_up(&self, pane_id: &PaneId, reduce_by: f64) -> bool {
let pane = self.panes.get(pane_id).unwrap();
if let Some(rows) = pane.position_and_size().rows.as_percent() {
let ids_below = self.pane_ids_directly_below(pane_id);
let flexible_below = self.ids_are_flexible(Direction::Vertical, ids_below);
rows - reduce_by >= RESIZE_PERCENT && flexible_below
} else {
false
}
}
fn ids_are_flexible(&self, direction: Direction, pane_ids: Option<Vec<PaneId>>) -> bool {
pane_ids.is_some()
&& pane_ids.unwrap().iter().all(|id| {
let geom = self.panes[id].current_geom();
let dimension = match direction {
Direction::Vertical => geom.rows,
Direction::Horizontal => geom.cols,
};
!dimension.is_fixed()
})
}
pub fn relayout_tab(&mut self, direction: Direction) {
let mut resizer = PaneResizer::new(self.panes.iter_mut());
let result = match direction {
Direction::Horizontal => resizer.layout(direction, self.display_area.cols),
Direction::Vertical => resizer.layout(direction, self.display_area.rows),
};
if let Err(e) = &result {
log::error!("{:?} relayout of the tab failed: {}", direction, e);
}
self.set_pane_frames(self.draw_pane_frames);
}
pub fn resize_whole_tab(&mut self, new_screen_size: Size) {
// FIXME: I *think* that Rust 2021 will let me just write this:
// let panes = self.panes.iter_mut().filter(|(pid, _)| !self.panes_to_hide.contains(pid));
// In the meantime, let's appease our borrow-checker overlords:
let temp_panes_to_hide = &self.panes_to_hide;
let panes = self
.panes
.iter_mut()
.filter(|(pid, _)| !temp_panes_to_hide.contains(pid));
let Size { rows, cols } = new_screen_size;
let mut resizer = PaneResizer::new(panes);
if resizer.layout(Direction::Horizontal, cols).is_ok() {
let column_difference = cols as isize - self.display_area.cols as isize;
// FIXME: Should the viewport be an Offset?
self.viewport.cols = (self.viewport.cols as isize + column_difference) as usize;
self.display_area.cols = cols;
} else {
log::error!("Failed to horizontally resize the tab!!!");
}
if resizer.layout(Direction::Vertical, rows).is_ok() {
let row_difference = rows as isize - self.display_area.rows as isize;
self.viewport.rows = (self.viewport.rows as isize + row_difference) as usize;
self.display_area.rows = rows;
} else {
log::error!("Failed to vertically resize the tab!!!");
}
self.should_clear_display_before_rendering = true;
self.set_pane_frames(self.draw_pane_frames);
}
pub fn resize_left(&mut self) {
// TODO: find out by how much we actually reduced and only reduce by that much
if let Some(active_pane_id) = self.get_active_pane_id() {
if self.can_increase_pane_and_surroundings_left(&active_pane_id, RESIZE_PERCENT) {
self.increase_pane_and_surroundings_left(&active_pane_id, RESIZE_PERCENT);
} else if self.can_reduce_pane_and_surroundings_left(&active_pane_id, RESIZE_PERCENT) {
self.reduce_pane_and_surroundings_left(&active_pane_id, RESIZE_PERCENT);
}
}
self.relayout_tab(Direction::Horizontal);
}
pub fn resize_right(&mut self) {
// TODO: find out by how much we actually reduced and only reduce by that much
if let Some(active_pane_id) = self.get_active_pane_id() {
if self.can_increase_pane_and_surroundings_right(&active_pane_id, RESIZE_PERCENT) {
self.increase_pane_and_surroundings_right(&active_pane_id, RESIZE_PERCENT);
} else if self.can_reduce_pane_and_surroundings_right(&active_pane_id, RESIZE_PERCENT) {
self.reduce_pane_and_surroundings_right(&active_pane_id, RESIZE_PERCENT);
}
}
self.relayout_tab(Direction::Horizontal);
}
pub fn resize_down(&mut self) {
// TODO: find out by how much we actually reduced and only reduce by that much
if let Some(active_pane_id) = self.get_active_pane_id() {
if self.can_increase_pane_and_surroundings_down(&active_pane_id, RESIZE_PERCENT) {
self.increase_pane_and_surroundings_down(&active_pane_id, RESIZE_PERCENT);
} else if self.can_reduce_pane_and_surroundings_down(&active_pane_id, RESIZE_PERCENT) {
self.reduce_pane_and_surroundings_down(&active_pane_id, RESIZE_PERCENT);
}
}
self.relayout_tab(Direction::Vertical);
}
pub fn resize_up(&mut self) {
// TODO: find out by how much we actually reduced and only reduce by that much
if let Some(active_pane_id) = self.get_active_pane_id() {
if self.can_increase_pane_and_surroundings_up(&active_pane_id, RESIZE_PERCENT) {
self.increase_pane_and_surroundings_up(&active_pane_id, RESIZE_PERCENT);
} else if self.can_reduce_pane_and_surroundings_up(&active_pane_id, RESIZE_PERCENT) {
self.reduce_pane_and_surroundings_up(&active_pane_id, RESIZE_PERCENT);
}
}
self.relayout_tab(Direction::Vertical);
}
pub fn move_focus(&mut self) {
if !self.has_selectable_panes() {
return;
}
if self.fullscreen_is_active {
return;
}
let active_terminal_id = self.get_active_pane_id().unwrap();
let terminal_ids: Vec<PaneId> = self.get_selectable_panes().map(|(&pid, _)| pid).collect(); // TODO: better, no allocations
let active_terminal_id_position = terminal_ids
.iter()
.position(|id| id == &active_terminal_id)
.unwrap();
let active_terminal = terminal_ids
.get(active_terminal_id_position + 1)
.or_else(|| terminal_ids.get(0))
.copied();
self.active_terminal = active_terminal;
}
pub fn focus_next_pane(&mut self) {
if !self.has_selectable_panes() {
return;
}
if self.fullscreen_is_active {
return;
}
let active_pane_id = self.get_active_pane_id().unwrap();
let mut panes: Vec<(&PaneId, &Box<dyn Pane>)> = self.get_selectable_panes().collect();
panes.sort_by(|(_a_id, a_pane), (_b_id, b_pane)| {
if a_pane.y() == b_pane.y() {
a_pane.x().cmp(&b_pane.x())
} else {
a_pane.y().cmp(&b_pane.y())
}
});
let active_pane_position = panes
.iter()
.position(|(id, _)| *id == &active_pane_id) // TODO: better
.unwrap();
let active_terminal = panes
.get(active_pane_position + 1)
.or_else(|| panes.get(0))
.map(|p| *p.0);
self.active_terminal = active_terminal;
}
pub fn focus_previous_pane(&mut self) {
if !self.has_selectable_panes() {
return;
}
if self.fullscreen_is_active {
return;
}
let active_pane_id = self.get_active_pane_id().unwrap();
let mut panes: Vec<(&PaneId, &Box<dyn Pane>)> = self.get_selectable_panes().collect();
panes.sort_by(|(_a_id, a_pane), (_b_id, b_pane)| {
if a_pane.y() == b_pane.y() {
a_pane.x().cmp(&b_pane.x())
} else {
a_pane.y().cmp(&b_pane.y())
}
});
let last_pane = panes.last().unwrap();
let active_pane_position = panes
.iter()
.position(|(id, _)| *id == &active_pane_id) // TODO: better
.unwrap();
let active_terminal = if active_pane_position == 0 {
Some(*last_pane.0)
} else {
Some(*panes.get(active_pane_position - 1).unwrap().0)
};
self.active_terminal = active_terminal;
}
// returns a boolean that indicates whether the focus moved
pub fn move_focus_left(&mut self) -> bool {
if !self.has_selectable_panes() {
return false;
}
if self.fullscreen_is_active {
return false;
}
let active_terminal = self.get_active_pane();
let updated_active_terminal = if let Some(active) = active_terminal {
let terminals = self.get_selectable_panes();
let next_index = terminals
.enumerate()
.filter(|(_, (_, c))| {
c.is_directly_left_of(active) && c.horizontally_overlaps_with(active)
})
.max_by_key(|(_, (_, c))| c.active_at())
.map(|(_, (pid, _))| pid);
match next_index {
Some(&p) => {
// render previously active pane so that its frame does not remain actively
// colored
let previously_active_pane =
self.panes.get_mut(&self.active_terminal.unwrap()).unwrap();
previously_active_pane.set_should_render(true);
let next_active_pane = self.panes.get_mut(&p).unwrap();
next_active_pane.set_should_render(true);
self.active_terminal = Some(p);
return true;
}
None => Some(active.pid()),
}
} else {
Some(active_terminal.unwrap().pid())
};
self.active_terminal = updated_active_terminal;
false
}
pub fn move_focus_down(&mut self) {
if !self.has_selectable_panes() {
return;
}
if self.fullscreen_is_active {
return;
}
let active_terminal = self.get_active_pane();
let updated_active_terminal = if let Some(active) = active_terminal {
let terminals = self.get_selectable_panes();
let next_index = terminals
.enumerate()
.filter(|(_, (_, c))| {
c.is_directly_below(active) && c.vertically_overlaps_with(active)
})
.max_by_key(|(_, (_, c))| c.active_at())
.map(|(_, (pid, _))| pid);
match next_index {
Some(&p) => {
// render previously active pane so that its frame does not remain actively
// colored
let previously_active_pane =
self.panes.get_mut(&self.active_terminal.unwrap()).unwrap();
previously_active_pane.set_should_render(true);
let next_active_pane = self.panes.get_mut(&p).unwrap();
next_active_pane.set_should_render(true);
Some(p)
}
None => Some(active.pid()),
}
} else {
Some(active_terminal.unwrap().pid())
};
self.active_terminal = updated_active_terminal;
}
pub fn move_focus_up(&mut self) {
if !self.has_selectable_panes() {
return;
}
if self.fullscreen_is_active {
return;
}
let active_terminal = self.get_active_pane();
let updated_active_terminal = if let Some(active) = active_terminal {
let terminals = self.get_selectable_panes();
let next_index = terminals
.enumerate()
.filter(|(_, (_, c))| {
c.is_directly_above(active) && c.vertically_overlaps_with(active)
})
.max_by_key(|(_, (_, c))| c.active_at())
.map(|(_, (pid, _))| pid);
match next_index {
Some(&p) => {
// render previously active pane so that its frame does not remain actively
// colored
let previously_active_pane =
self.panes.get_mut(&self.active_terminal.unwrap()).unwrap();
previously_active_pane.set_should_render(true);
let next_active_pane = self.panes.get_mut(&p).unwrap();
next_active_pane.set_should_render(true);
Some(p)
}
None => Some(active.pid()),
}
} else {
Some(active_terminal.unwrap().pid())
};
self.active_terminal = updated_active_terminal;
}
// returns a boolean that indicates whether the focus moved
pub fn move_focus_right(&mut self) -> bool {
if !self.has_selectable_panes() {
return false;
}
if self.fullscreen_is_active {
return false;
}
let active_terminal = self.get_active_pane();
let updated_active_terminal = if let Some(active) = active_terminal {
let terminals = self.get_selectable_panes();
let next_index = terminals
.enumerate()
.filter(|(_, (_, c))| {
c.is_directly_right_of(active) && c.horizontally_overlaps_with(active)
})
.max_by_key(|(_, (_, c))| c.active_at())
.map(|(_, (pid, _))| pid);
match next_index {
Some(&p) => {
// render previously active pane so that its frame does not remain actively
// colored
let previously_active_pane =
self.panes.get_mut(&self.active_terminal.unwrap()).unwrap();
previously_active_pane.set_should_render(true);
let next_active_pane = self.panes.get_mut(&p).unwrap();
next_active_pane.set_should_render(true);
self.active_terminal = Some(p);
return true;
}
None => Some(active.pid()),
}
} else {
Some(active_terminal.unwrap().pid())
};
self.active_terminal = updated_active_terminal;
false
}
pub fn move_active_pane_down(&mut self) {
if !self.has_selectable_panes() {
return;
}
if self.fullscreen_is_active {
return;
}
if let Some(active) = self.get_active_pane() {
let terminals = self.get_selectable_panes();
let next_index = terminals
.enumerate()
.filter(|(_, (_, c))| {
c.is_directly_below(active) && c.vertically_overlaps_with(active)
})
.max_by_key(|(_, (_, c))| c.active_at())
.map(|(_, (pid, _))| pid);
if let Some(&p) = next_index {
let current_position = self.panes.get(&self.active_terminal.unwrap()).unwrap();
let prev_geom = current_position.position_and_size();
let prev_geom_override = current_position.geom_override();
let new_position = self.panes.get_mut(&p).unwrap();
let next_geom = new_position.position_and_size();
let next_geom_override = new_position.geom_override();
new_position.set_geom(prev_geom);
if let Some(geom) = prev_geom_override {
new_position.get_geom_override(geom);
}
resize_pty!(new_position, self.os_api);
new_position.set_should_render(true);
let current_position = self.panes.get_mut(&self.active_terminal.unwrap()).unwrap();
current_position.set_geom(next_geom);
if let Some(geom) = next_geom_override {
current_position.get_geom_override(geom);
}
resize_pty!(current_position, self.os_api);
current_position.set_should_render(true);
}
}
}
pub fn move_active_pane_up(&mut self) {
if !self.has_selectable_panes() {
return;
}
if self.fullscreen_is_active {
return;
}
if let Some(active) = self.get_active_pane() {
let terminals = self.get_selectable_panes();
let next_index = terminals
.enumerate()
.filter(|(_, (_, c))| {
c.is_directly_above(active) && c.vertically_overlaps_with(active)
})
.max_by_key(|(_, (_, c))| c.active_at())
.map(|(_, (pid, _))| pid);
if let Some(&p) = next_index {
let current_position = self.panes.get(&self.active_terminal.unwrap()).unwrap();
let prev_geom = current_position.position_and_size();
let prev_geom_override = current_position.geom_override();
let new_position = self.panes.get_mut(&p).unwrap();
let next_geom = new_position.position_and_size();
let next_geom_override = new_position.geom_override();
new_position.set_geom(prev_geom);
if let Some(geom) = prev_geom_override {
new_position.get_geom_override(geom);
}
resize_pty!(new_position, self.os_api);
new_position.set_should_render(true);
let current_position = self.panes.get_mut(&self.active_terminal.unwrap()).unwrap();
current_position.set_geom(next_geom);
if let Some(geom) = next_geom_override {
current_position.get_geom_override(geom);
}
resize_pty!(current_position, self.os_api);
current_position.set_should_render(true);
}
}
}
pub fn move_active_pane_right(&mut self) {
if !self.has_selectable_panes() {
return;
}
if self.fullscreen_is_active {
return;
}
if let Some(active) = self.get_active_pane() {
let terminals = self.get_selectable_panes();
let next_index = terminals
.enumerate()
.filter(|(_, (_, c))| {
c.is_directly_right_of(active) && c.horizontally_overlaps_with(active)
})
.max_by_key(|(_, (_, c))| c.active_at())
.map(|(_, (pid, _))| pid);
if let Some(&p) = next_index {
let current_position = self.panes.get(&self.active_terminal.unwrap()).unwrap();
let prev_geom = current_position.position_and_size();
let prev_geom_override = current_position.geom_override();
let new_position = self.panes.get_mut(&p).unwrap();
let next_geom = new_position.position_and_size();
let next_geom_override = new_position.geom_override();
new_position.set_geom(prev_geom);
if let Some(geom) = prev_geom_override {
new_position.get_geom_override(geom);
}
resize_pty!(new_position, self.os_api);
new_position.set_should_render(true);
let current_position = self.panes.get_mut(&self.active_terminal.unwrap()).unwrap();
current_position.set_geom(next_geom);
if let Some(geom) = next_geom_override {
current_position.get_geom_override(geom);
}
resize_pty!(current_position, self.os_api);
current_position.set_should_render(true);
}
}
}
pub fn move_active_pane_left(&mut self) {
if !self.has_selectable_panes() {
return;
}
if self.fullscreen_is_active {
return;
}
if let Some(active) = self.get_active_pane() {
let terminals = self.get_selectable_panes();
let next_index = terminals
.enumerate()
.filter(|(_, (_, c))| {
c.is_directly_left_of(active) && c.horizontally_overlaps_with(active)
})
.max_by_key(|(_, (_, c))| c.active_at())
.map(|(_, (pid, _))| pid);
if let Some(&p) = next_index {
let current_position = self.panes.get(&self.active_terminal.unwrap()).unwrap();
let prev_geom = current_position.position_and_size();
let prev_geom_override = current_position.geom_override();
let new_position = self.panes.get_mut(&p).unwrap();
let next_geom = new_position.position_and_size();
let next_geom_override = new_position.geom_override();
new_position.set_geom(prev_geom);
if let Some(geom) = prev_geom_override {
new_position.get_geom_override(geom);
}
resize_pty!(new_position, self.os_api);
new_position.set_should_render(true);
let current_position = self.panes.get_mut(&self.active_terminal.unwrap()).unwrap();
current_position.set_geom(next_geom);
if let Some(geom) = next_geom_override {
current_position.get_geom_override(geom);
}
resize_pty!(current_position, self.os_api);
current_position.set_should_render(true);
}
}
}
fn horizontal_borders(&self, terminals: &[PaneId]) -> HashSet<usize> {
terminals.iter().fold(HashSet::new(), |mut borders, t| {
let terminal = self.panes.get(t).unwrap();
borders.insert(terminal.y());
borders.insert(terminal.y() + terminal.rows());
borders
})
}
fn vertical_borders(&self, terminals: &[PaneId]) -> HashSet<usize> {
terminals.iter().fold(HashSet::new(), |mut borders, t| {
let terminal = self.panes.get(t).unwrap();
borders.insert(terminal.x());
borders.insert(terminal.x() + terminal.cols());
borders
})
}
fn panes_to_the_left_between_aligning_borders(&self, id: PaneId) -> Option<Vec<PaneId>> {
if let Some(terminal) = self.panes.get(&id) {
let upper_close_border = terminal.y();
let lower_close_border = terminal.y() + terminal.rows();
if let Some(terminals_to_the_left) = self.pane_ids_directly_left_of(&id) {
let mut selectable_panes: Vec<_> = terminals_to_the_left
.into_iter()
.filter(|pid| self.panes[pid].selectable())
.collect();
let terminal_borders_to_the_left = self.horizontal_borders(&selectable_panes);
if terminal_borders_to_the_left.contains(&upper_close_border)
&& terminal_borders_to_the_left.contains(&lower_close_border)
{
selectable_panes.retain(|t| {
self.pane_is_between_horizontal_borders(
t,
upper_close_border,
lower_close_border,
)
});
return Some(selectable_panes);
}
}
}
None
}
fn panes_to_the_right_between_aligning_borders(&self, id: PaneId) -> Option<Vec<PaneId>> {
if let Some(terminal) = self.panes.get(&id) {
let upper_close_border = terminal.y();
let lower_close_border = terminal.y() + terminal.rows();
if let Some(terminals_to_the_right) = self.pane_ids_directly_right_of(&id) {
let mut selectable_panes: Vec<_> = terminals_to_the_right
.into_iter()
.filter(|pid| self.panes[pid].selectable())
.collect();
let terminal_borders_to_the_right = self.horizontal_borders(&selectable_panes);
if terminal_borders_to_the_right.contains(&upper_close_border)
&& terminal_borders_to_the_right.contains(&lower_close_border)
{
selectable_panes.retain(|t| {
self.pane_is_between_horizontal_borders(
t,
upper_close_border,
lower_close_border,
)
});
return Some(selectable_panes);
}
}
}
None
}
fn panes_above_between_aligning_borders(&self, id: PaneId) -> Option<Vec<PaneId>> {
if let Some(terminal) = self.panes.get(&id) {
let left_close_border = terminal.x();
let right_close_border = terminal.x() + terminal.cols();
if let Some(terminals_above) = self.pane_ids_directly_above(&id) {
let mut selectable_panes: Vec<_> = terminals_above
.into_iter()
.filter(|pid| self.panes[pid].selectable())
.collect();
let terminal_borders_above = self.vertical_borders(&selectable_panes);
if terminal_borders_above.contains(&left_close_border)
&& terminal_borders_above.contains(&right_close_border)
{
selectable_panes.retain(|t| {
self.pane_is_between_vertical_borders(
t,
left_close_border,
right_close_border,
)
});
return Some(selectable_panes);
}
}
}
None
}
fn panes_below_between_aligning_borders(&self, id: PaneId) -> Option<Vec<PaneId>> {
if let Some(terminal) = self.panes.get(&id) {
let left_close_border = terminal.x();
let right_close_border = terminal.x() + terminal.cols();
if let Some(terminals_below) = self.pane_ids_directly_below(&id) {
let mut selectable_panes: Vec<_> = terminals_below
.into_iter()
.filter(|pid| self.panes[pid].selectable())
.collect();
let terminal_borders_below = self.vertical_borders(&selectable_panes);
if terminal_borders_below.contains(&left_close_border)
&& terminal_borders_below.contains(&right_close_border)
{
selectable_panes.retain(|t| {
self.pane_is_between_vertical_borders(
t,
left_close_border,
right_close_border,
)
});
return Some(selectable_panes);
}
}
}
None
}
fn close_down_to_max_terminals(&mut self) {
if let Some(max_panes) = self.max_panes {
let terminals = self.get_pane_ids();
for &pid in terminals.iter().skip(max_panes - 1) {
self.senders
.send_to_pty(PtyInstruction::ClosePane(pid))
.unwrap();
self.close_pane(pid);
}
}
}
pub fn get_pane_ids(&self) -> Vec<PaneId> {
self.get_panes().map(|(&pid, _)| pid).collect()
}
pub fn set_pane_selectable(&mut self, id: PaneId, selectable: bool) {
if let Some(pane) = self.panes.get_mut(&id) {
pane.set_selectable(selectable);
if self.get_active_pane_id() == Some(id) && !selectable {
self.active_terminal = self.next_active_pane(&self.get_pane_ids());
}
}
}
pub fn close_pane(&mut self, id: PaneId) {
if self.fullscreen_is_active {
self.toggle_active_pane_fullscreen();
}
if let Some(pane_to_close) = self.panes.get(&id) {
let freed_space = pane_to_close.position_and_size();
if let (Some(freed_width), Some(freed_height)) =
(freed_space.cols.as_percent(), freed_space.rows.as_percent())
{
if let Some(panes) = self.panes_to_the_left_between_aligning_borders(id) {
for pane_id in panes.iter() {
self.increase_pane_width(pane_id, freed_width);
}
self.panes.remove(&id);
if self.active_terminal == Some(id) {
let next_active_pane = self.next_active_pane(&panes);
self.active_terminal = next_active_pane;
}
self.relayout_tab(Direction::Horizontal);
return;
}
if let Some(panes) = self.panes_to_the_right_between_aligning_borders(id) {
for pane_id in panes.iter() {
self.increase_pane_width(pane_id, freed_width);
}
self.panes.remove(&id);
if self.active_terminal == Some(id) {
let next_active_pane = self.next_active_pane(&panes);
self.active_terminal = next_active_pane;
}
self.relayout_tab(Direction::Horizontal);
return;
}
if let Some(panes) = self.panes_above_between_aligning_borders(id) {
for pane_id in panes.iter() {
self.increase_pane_height(pane_id, freed_height);
}
self.panes.remove(&id);
if self.active_terminal == Some(id) {
let next_active_pane = self.next_active_pane(&panes);
self.active_terminal = next_active_pane;
}
self.relayout_tab(Direction::Vertical);
return;
}
if let Some(panes) = self.panes_below_between_aligning_borders(id) {
for pane_id in panes.iter() {
self.increase_pane_height(pane_id, freed_height);
}
self.panes.remove(&id);
if self.active_terminal == Some(id) {
let next_active_pane = self.next_active_pane(&panes);
self.active_terminal = next_active_pane;
}
self.relayout_tab(Direction::Vertical);
return;
}
}
// if we reached here, this is either the last pane or there's some sort of
// configuration error (eg. we're trying to close a pane surrounded by fixed panes)
self.panes.remove(&id);
self.active_terminal = None;
self.resize_whole_tab(self.display_area);
}
}
pub fn close_focused_pane(&mut self) {
if let Some(active_pane_id) = self.get_active_pane_id() {
self.close_pane(active_pane_id);
self.senders
.send_to_pty(PtyInstruction::ClosePane(active_pane_id))
.unwrap();
}
}
pub fn scroll_active_terminal_up(&mut self) {
if let Some(active_terminal_id) = self.get_active_terminal_id() {
let active_terminal = self
.panes
.get_mut(&PaneId::Terminal(active_terminal_id))
.unwrap();
active_terminal.scroll_up(1);
}
}
pub fn scroll_active_terminal_down(&mut self) {
if let Some(active_terminal_id) = self.get_active_terminal_id() {
let active_terminal = self
.panes
.get_mut(&PaneId::Terminal(active_terminal_id))
.unwrap();
active_terminal.scroll_down(1);
if !active_terminal.is_scrolled() {
self.process_pending_vte_events(active_terminal_id);
}
}
}
pub fn scroll_active_terminal_up_page(&mut self) {
if let Some(active_terminal_id) = self.get_active_terminal_id() {
let active_terminal = self
.panes
.get_mut(&PaneId::Terminal(active_terminal_id))
.unwrap();
// prevent overflow when row == 0
let scroll_columns = active_terminal.rows().max(1) - 1;
active_terminal.scroll_up(scroll_columns);
}
}
pub fn scroll_active_terminal_down_page(&mut self) {
if let Some(active_terminal_id) = self.get_active_terminal_id() {
let active_terminal = self
.panes
.get_mut(&PaneId::Terminal(active_terminal_id))
.unwrap();
// prevent overflow when row == 0
let scroll_columns = active_terminal.rows().max(1) - 1;
active_terminal.scroll_down(scroll_columns);
if !active_terminal.is_scrolled() {
self.process_pending_vte_events(active_terminal_id);
}
}
}
pub fn scroll_active_terminal_to_bottom(&mut self) {
if let Some(active_terminal_id) = self.get_active_terminal_id() {
let active_terminal = self
.panes
.get_mut(&PaneId::Terminal(active_terminal_id))
.unwrap();
active_terminal.clear_scroll();
if !active_terminal.is_scrolled() {
self.process_pending_vte_events(active_terminal_id);
}
}
}
pub fn clear_active_terminal_scroll(&mut self) {
if let Some(active_terminal_id) = self.get_active_terminal_id() {
let active_terminal = self
.panes
.get_mut(&PaneId::Terminal(active_terminal_id))
.unwrap();
active_terminal.clear_scroll();
if !active_terminal.is_scrolled() {
self.process_pending_vte_events(active_terminal_id);
}
}
}
pub fn scroll_terminal_up(&mut self, point: &Position, lines: usize) {
if let Some(pane) = self.get_pane_at(point, false) {
pane.scroll_up(lines);
}
}
pub fn scroll_terminal_down(&mut self, point: &Position, lines: usize) {
if let Some(pane) = self.get_pane_at(point, false) {
pane.scroll_down(lines);
if !pane.is_scrolled() {
if let PaneId::Terminal(pid) = pane.pid() {
self.process_pending_vte_events(pid);
}
}
}
}
fn get_pane_at(
&mut self,
point: &Position,
search_selectable: bool,
) -> Option<&mut Box<dyn Pane>> {
if let Some(pane_id) = self.get_pane_id_at(point, search_selectable) {
self.panes.get_mut(&pane_id)
} else {
None
}
}
fn get_pane_id_at(&self, point: &Position, search_selectable: bool) -> Option<PaneId> {
if self.fullscreen_is_active {
return self.get_active_pane_id();
}
if search_selectable {
self.get_selectable_panes()
.find(|(_, p)| p.contains(point))
.map(|(&id, _)| id)
} else {
self.get_panes()
.find(|(_, p)| p.contains(point))
.map(|(&id, _)| id)
}
}
pub fn handle_left_click(&mut self, position: &Position) {
self.focus_pane_at(position);
if let Some(pane) = self.get_pane_at(position, false) {
let relative_position = pane.relative_position(position);
pane.start_selection(&relative_position);
};
}
fn focus_pane_at(&mut self, point: &Position) {
if let Some(clicked_pane) = self.get_pane_id_at(point, true) {
self.active_terminal = Some(clicked_pane);
}
}
pub fn handle_mouse_release(&mut self, position: &Position) {
let active_pane_id = self.get_active_pane_id();
// on release, get the selected text from the active pane, and reset it's selection
let mut selected_text = None;
if active_pane_id != self.get_pane_id_at(position, true) {
if let Some(active_pane_id) = active_pane_id {
if let Some(active_pane) = self.panes.get_mut(&active_pane_id) {
active_pane.end_selection(None);
selected_text = active_pane.get_selected_text();
active_pane.reset_selection();
}
}
} else if let Some(pane) = self.get_pane_at(position, true) {
let relative_position = pane.relative_position(position);
pane.end_selection(Some(&relative_position));
selected_text = pane.get_selected_text();
pane.reset_selection();
}
if let Some(selected_text) = selected_text {
self.write_selection_to_clipboard(&selected_text);
}
}
pub fn handle_mouse_hold(&mut self, position_on_screen: &Position) {
if let Some(active_pane_id) = self.get_active_pane_id() {
if let Some(active_pane) = self.panes.get_mut(&active_pane_id) {
let relative_position = active_pane.relative_position(position_on_screen);
active_pane.update_selection(&relative_position);
}
}
}
pub fn copy_selection(&self) {
let selected_text = self.get_active_pane().and_then(|p| p.get_selected_text());
if let Some(selected_text) = selected_text {
self.write_selection_to_clipboard(&selected_text);
self.senders
.send_to_plugin(PluginInstruction::Update(None, Event::CopyToClipboard))
.unwrap();
}
}
fn write_selection_to_clipboard(&self, selection: &str) {
let mut output = Output::default();
output.add_clients(&self.connected_clients);
output.push_str_to_all_clients(&format!(
"\u{1b}]52;c;{}\u{1b}\\",
base64::encode(selection)
));
// TODO: ideally we should be sending the Render instruction from the screen
self.senders
.send_to_server(ServerInstruction::Render(Some(output)))
.unwrap();
self.senders
.send_to_plugin(PluginInstruction::Update(None, Event::CopyToClipboard))
.unwrap();
}
fn is_inside_viewport(&self, pane_id: &PaneId) -> bool {
// this is mostly separated to an outside function in order to allow us to pass a clone to
// it sometimes when we need to get around the borrow checker
is_inside_viewport(&self.viewport, self.panes.get(pane_id).unwrap())
}
fn offset_viewport(&mut self, position_and_size: &Viewport) {
if position_and_size.x == self.viewport.x
&& position_and_size.x + position_and_size.cols == self.viewport.x + self.viewport.cols
{
if position_and_size.y == self.viewport.y {
self.viewport.y += position_and_size.rows;
self.viewport.rows -= position_and_size.rows;
} else if position_and_size.y + position_and_size.rows
== self.viewport.y + self.viewport.rows
{
self.viewport.rows -= position_and_size.rows;
}
}
if position_and_size.y == self.viewport.y
&& position_and_size.y + position_and_size.rows == self.viewport.y + self.viewport.rows
{
if position_and_size.x == self.viewport.x {
self.viewport.x += position_and_size.cols;
self.viewport.cols -= position_and_size.cols;
} else if position_and_size.x + position_and_size.cols
== self.viewport.x + self.viewport.cols
{
self.viewport.cols -= position_and_size.cols;
}
}
}
pub fn visible(&self, visible: bool) {
let pids_in_this_tab = self.panes.keys().filter_map(|p| match p {
PaneId::Plugin(pid) => Some(pid),
_ => None,
});
for pid in pids_in_this_tab {
self.senders
.send_to_plugin(PluginInstruction::Update(
Some(*pid),
Event::Visible(visible),
))
.unwrap();
}
}
}
#[allow(clippy::borrowed_box)]
fn is_inside_viewport(viewport: &Viewport, pane: &Box<dyn Pane>) -> bool {
let pane_position_and_size = pane.current_geom();
pane_position_and_size.y >= viewport.y
&& pane_position_and_size.y + pane_position_and_size.rows.as_usize()
<= viewport.y + viewport.rows
}
#[cfg(test)]
#[path = "./unit/tab_tests.rs"]
mod tab_tests;