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
//! Help-buffer orchestrators on `Editor`.
//!
//! `open_help_manual` and `open_keyboard_shortcuts` create read-only
//! virtual buffers populated with the manual text or keybinding listing.
//! Both check for an existing help buffer first to avoid duplicates.
use super::help;
use super::Editor;
impl Editor {
/// Open the built-in help manual in a read-only buffer
///
/// If a help manual buffer already exists, switch to it instead of creating a new one.
pub fn open_help_manual(&mut self) {
// Check if help buffer already exists
let existing_buffer = self
.buffer_metadata
.iter()
.find(|(_, m)| m.display_name == help::HELP_MANUAL_BUFFER_NAME)
.map(|(id, _)| *id);
if let Some(buffer_id) = existing_buffer {
// Switch to existing help buffer
self.set_active_buffer(buffer_id);
return;
}
// Create new help buffer with "special" mode (has 'q' to close)
let buffer_id = self.create_virtual_buffer(
help::HELP_MANUAL_BUFFER_NAME.to_string(),
"special".to_string(),
true,
);
// Set the content
if let Some(state) = self.buffers.get_mut(&buffer_id) {
state.buffer.insert(0, help::HELP_MANUAL_CONTENT);
state.buffer.clear_modified();
state.editing_disabled = true;
// Disable line numbers for cleaner display
state.margins.configure_for_line_numbers(false);
}
self.set_active_buffer(buffer_id);
}
/// Open the keyboard shortcuts viewer in a read-only buffer
///
/// If a keyboard shortcuts buffer already exists, switch to it instead of creating a new one.
/// The shortcuts are dynamically generated from the current keybindings configuration.
pub fn open_keyboard_shortcuts(&mut self) {
// Check if keyboard shortcuts buffer already exists
let existing_buffer = self
.buffer_metadata
.iter()
.find(|(_, m)| m.display_name == help::KEYBOARD_SHORTCUTS_BUFFER_NAME)
.map(|(id, _)| *id);
if let Some(buffer_id) = existing_buffer {
// Switch to existing buffer
self.set_active_buffer(buffer_id);
return;
}
// Get all keybindings
let bindings = self.keybindings.read().unwrap().get_all_bindings();
// Format the keybindings as readable text
let mut content = String::from("Keyboard Shortcuts\n");
content.push_str("==================\n\n");
content.push_str("Press 'q' to close this buffer.\n\n");
// Group bindings by context (Normal, Prompt, etc.)
let mut current_context = String::new();
for (key, action) in &bindings {
// Check if action starts with a context prefix like "[Prompt] "
let (context, action_name) = if let Some(bracket_end) = action.find("] ") {
let ctx = &action[1..bracket_end];
let name = &action[bracket_end + 2..];
(ctx.to_string(), name.to_string())
} else {
("Normal".to_string(), action.clone())
};
// Print context header when it changes
if context != current_context {
if !current_context.is_empty() {
content.push('\n');
}
content.push_str(&format!("── {} Mode ──\n\n", context));
current_context = context;
}
// Format: " Ctrl+S Save"
content.push_str(&format!(" {:20} {}\n", key, action_name));
}
// Create new keyboard shortcuts buffer with "special" mode (has 'q' to close)
let buffer_id = self.create_virtual_buffer(
help::KEYBOARD_SHORTCUTS_BUFFER_NAME.to_string(),
"special".to_string(),
true,
);
// Set the content
if let Some(state) = self.buffers.get_mut(&buffer_id) {
state.buffer.insert(0, &content);
state.buffer.clear_modified();
state.editing_disabled = true;
// Disable line numbers for cleaner display
state.margins.configure_for_line_numbers(false);
}
self.set_active_buffer(buffer_id);
}
}