1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
|
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(
|