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
|
use std::collections::BTreeMap;
use zellij_tile::prelude::*;
use crate::click;
use crate::screens::ActiveScreen;
use crate::state::State;
use crate::workspace::pane_id_of;
pub(crate) fn scroll_or_pan(state: &mut State, lines: usize, up: bool) -> bool {
if state.active != ActiveScreen::Viewport {
handle_selector_scroll(state, lines, up)
} else {
handle_scroll_pan(state, lines, up)
}
}
pub(crate) fn pan_horizontally(state: &mut State, cols: usize, right: bool) -> bool {
if !pan_is_allowed(state) {
return false;
}
state.viewport.viewport_h_pan = if right {
state.viewport.viewport_h_pan.saturating_add(cols)
} else {
state.viewport.viewport_h_pan.saturating_sub(cols)
};
true
}
pub(crate) fn handle_left_click(state: &mut State, line: usize, col: usize) -> bool {
if let Some(action) = state.frame.click_to_action(line, col) {
return click::dispatch(state, action);
}
if state.menu.open {
state.menu.open = false;
return true;
}
forward_click_to_pane(state, line, col)
}
fn forward_click_to_pane(state: &mut State, line: usize, col: usize) -> bool {
let Some((pane_row, pane_col)) = state.viewport.click_in_viewport(line, col) else {
return false;
};
let Some(pane) = state.workspace.current_pane() else {
return false;
};
if pane.is_plugin {
let mut args = BTreeMap::new();
args.insert("row".to_string(), pane_row.to_string());
args.insert("col".to_string(), pane_col.to_string());
let message = MessageToPlugin::new("mobile_viewport_click")
.with_destination_plugin_id(pane.id)
.with_args(args);
pipe_message_to_plugin(message);
} else {
let bytes = sgr_left_click(pane_row, pane_col);
write_to_pane_id(bytes, pane_id_of(&pane));
}
false
}
fn apply_v_pan(old_pan: usize, max_pan: usize, lines: usize, up: bool) -> (usize, usize) {
if up {
let desired = old_pan.saturating_add(lines);
let new_pan = desired.min(max_pan);
let absorbed = new_pan - old_pan;
(new_pan, lines - absorbed)
} else {
let new_pan = old_pan.saturating_sub(lines);
let absorbed = old_pan - new_pan;
(new_pan, lines - absorbed)
}
}
fn handle_selector_scroll(state: &mut State, lines: usize, up: bool) -> bool {
let step = lines.min(1);
let old = state.navigation.selector_scroll_offset;
state.navigation.selector_scroll_offset = if up {
old.saturating_sub(step)
} else {
old.saturating_add(step)
};
state.navigation.selector_scroll_offset != old
}
fn handle_scroll_pan(state: &mut State, lines: usize, up: bool) -> bool {
if !pan_is_allowed(state) {
return false;
}
let Some(max_v_pan) = state.viewport.max_viewport_v_pan(&state.workspace) else {
if up {
state.viewport.viewport_v_pan = state.viewport.viewport_v_pan.saturating_add(lines);
} else {
state.viewport.viewport_v_pan = state.viewport.viewport_v_pan.saturating_sub(lines);
}
return true;
};
let old_pan = state.viewport.viewport_v_pan;
let (new_pan, overflow) = apply_v_pan(old_pan, max_v_pan, lines, up);
let pan_moved = new_pan != old_pan;
state.viewport.viewport_v_pan = new_pan;
if overflow > 0 {
if let Some(pane) = state.workspace.current_pane() {
let pane_id = pane_id_of(&pane);
for _ in 0..overflow {
if up {
scroll_up_in_pane_id(pane_id);
} else {
scroll_down_in_pane_id(pane_id);
}
}
}
}
pan_moved
}
fn pan_is_allowed(state: &State) -> bool {
if state.active != ActiveScreen::Viewport {
return false;
}
if state.workspace.current_pane().is_none() {
return false;
}
let len = state.workspace.current_pane_viewport_len();
if len == 0 {
return false;
}
true
}
fn sgr_left_click(pane_row: usize, pane_col: usize) -> Vec<u8> {
let col = pane_col + 1;
let row = pane_row + 1;
format!("\x1b[<0;{};{}M\x1b[<0;{};{}m", col, row, col, row).into_bytes()
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn apply_v_pan_up_fully_absorbed() {
assert_eq!(apply_v_pan(0, 100, 3, true), (3, 0));
assert_eq!(apply_v_pan(50, 100, 3, true), (53, 0));
}
#[test]
fn apply_v_pan_up_partial_overflow() {
assert_eq!(apply_v_pan(99, 100, 3, true), (100, 2));
assert_eq!(apply_v_pan(98, 100, 5, true), (100, 3));
}
#[test]
fn apply_v_pan_up_fully_overflowed() {
assert_eq!(apply_v_pan(100, 100, 3, true), (100, 3));
}
#[test]
fn apply_v_pan_up_zero_max() {
assert_eq!(apply_v_pan(0, 0, 3, true), (0, 3));
assert_eq!(apply_v_pan(0, 0, 0, true), (0, 0));
}
#[test]
fn apply_v_pan_down_partial_overflow() {
assert_eq!(apply_v_pan(2, 100, 3, false), (0, 1));
assert_eq!(apply_v_pan(5, 100, 3, false), (2, 0));
}
#[test]
fn apply_v_pan_down_fully_overflowed() {
assert_eq!(apply_v_pan(0, 100, 3, false), (0, 3));
}
#[test]
fn apply_v_pan_zero_lines() {
assert_eq!(apply_v_pan(5, 100, 0, true), (5, 0));
assert_eq!(apply_v_pan(5, 100, 0, false), (5, 0));
}
}
|
