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|
use crate::panes::{FloatingPanes, TiledPanes};
use std::cell::RefCell;
use std::collections::BTreeMap;
use std::rc::Rc;
use zellij_utils::{
input::layout::{
FloatingPaneLayout, LayoutConstraint, SwapFloatingLayout, SwapTiledLayout, TiledPaneLayout,
},
pane_size::{PaneGeom, Size},
};
#[derive(Clone, Debug, Default)]
pub struct SwapLayouts {
swap_tiled_layouts: Vec<SwapTiledLayout>,
swap_floating_layouts: Vec<SwapFloatingLayout>,
current_floating_layout_position: usize,
current_tiled_layout_position: usize,
is_floating_damaged: bool,
is_tiled_damaged: bool,
display_area: Rc<RefCell<Size>>, // includes all panes (including eg. the status bar and tab bar in the default layout)
}
impl SwapLayouts {
pub fn new(
swap_layouts: (Vec<SwapTiledLayout>, Vec<SwapFloatingLayout>),
display_area: Rc<RefCell<Size>>,
) -> Self {
let display_area = display_area.clone();
SwapLayouts {
swap_tiled_layouts: swap_layouts.0,
swap_floating_layouts: swap_layouts.1,
is_floating_damaged: false,
is_tiled_damaged: false,
display_area,
..Default::default()
}
}
pub fn set_base_layout(&mut self, layout: (TiledPaneLayout, Vec<FloatingPaneLayout>)) {
let mut base_swap_tiled_layout = BTreeMap::new();
let mut base_swap_floating_layout = BTreeMap::new();
let tiled_panes_count = layout.0.pane_count();
let floating_panes_count = layout.1.len();
// we set ExactPanes to the current panes in the layout, because the base layout is not
// intended to be progressive - i.e. to have additional panes added to it
// we also don't want it to be applied for less than the expected amount of panes, because
// then unintended things can happen
// we still want to keep it around in case we'd like to swap layouts without adding panes
base_swap_tiled_layout.insert(LayoutConstraint::ExactPanes(tiled_panes_count), layout.0);
base_swap_floating_layout
.insert(LayoutConstraint::ExactPanes(floating_panes_count), layout.1);
self.swap_tiled_layouts
.insert(0, (base_swap_tiled_layout, Some("BASE".into())));
self.swap_floating_layouts
.insert(0, (base_swap_floating_layout, Some("BASE".into())));
self.current_tiled_layout_position = 0;
self.current_floating_layout_position = 0;
}
pub fn set_is_floating_damaged(&mut self) {
self.is_floating_damaged = true;
}
pub fn set_is_tiled_damaged(&mut self) {
self.is_tiled_damaged = true;
}
pub fn is_floating_damaged(&self) -> bool {
self.is_floating_damaged
}
pub fn is_tiled_damaged(&self) -> bool {
self.is_tiled_damaged
}
pub fn tiled_layout_info(&self) -> (Option<String>, bool) {
// (swap_layout_name, is_swap_layout_dirty)
match self
.swap_tiled_layouts
.iter()
.nth(self.current_tiled_layout_position)
{
Some(current_tiled_layout) => (
current_tiled_layout.1.clone().or_else(|| {
Some(format!(
"Layout #{}",
self.current_tiled_layout_position + 1
))
}),
self.is_tiled_damaged,
),
None => (None, self.is_tiled_damaged),
}
}
pub fn floating_layout_info(&self) -> (Option<String>, bool) {
// (swap_layout_name, is_swap_layout_dirty)
match self
.swap_floating_layouts
.iter()
.nth(self.current_floating_layout_position)
{
Some(current_floating_layout) => (
current_floating_layout.1.clone().or_else(|| {
Some(format!(
"Layout #{}",
self.current_floating_layout_position + 1
))
}),
self.is_floating_damaged,
),
None => (None, self.is_floating_damaged),
}
}
pub fn swap_floating_panes(
&mut self,
floating_panes: &FloatingPanes,
search_backwards: bool,
) -> Option<Vec<FloatingPaneLayout>> {
if self.swap_floating_layouts.is_empty() {
return None;
}
let initial_position = self.current_floating_layout_position;
macro_rules! progress_layout {
() => {{
if search_backwards {
if self.current_floating_layout_position == 0 {
self.current_floating_layout_position =
self.swap_floating_layouts.len().saturating_sub(1);
} else {
self.current_floating_layout_position -= 1;
}
} else {
self.current_floating_layout_position += 1;
}
}};
}
if !self.is_floating_damaged
&& self
.swap_floating_layouts
.iter()
.nth(self.current_floating_layout_position)
.is_some()
{
progress_layout!();
}
self.is_floating_damaged = false;
loop {
match self
.swap_floating_layouts
.iter()
.nth(self.current_floating_layout_position)
{
Some(swap_layout) => {
for (constraint, layout) in swap_layout.0.iter() {
if self.state_fits_floating_panes_constraint(constraint, floating_panes) {
return Some(layout.clone());
};
}
progress_layout!();
},
None => {
self.current_floating_layout_position = 0;
},
};
if self.current_floating_layout_position == initial_position {
break;
}
}
None
}
fn state_fits_tiled_panes_constraint(
&self,
constraint: &LayoutConstraint,
tiled_panes: &TiledPanes,
) -> bool {
match constraint {
LayoutConstraint::MaxPanes(max_panes) => {
tiled_panes.visible_panes_count() <= *max_panes
},
LayoutConstraint::MinPanes(min_panes) => {
tiled_panes.visible_panes_count() >= *min_panes
},
LayoutConstraint::ExactPanes(pane_count) => {
tiled_panes.visible_panes_count() == *pane_count
},
LayoutConstraint::NoConstraint => true,
}
}
fn state_fits_floating_panes_constraint(
&self
|
