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
293
294
295
296
297
use crate::tui::main_view::{MainViewState, PreviewState};
use crate::tui::message::Message;
use crate::tui::model::{AppState, AppView};
use crate::tui::widget::PackObjectWidget;
impl AppState {
// Handle load result messages
pub fn handle_load_result_message(
&mut self,
msg: Message,
plumber: &crate::GitPlumber,
) -> bool {
match msg {
Message::LoadGitObjects(result) => match result {
Ok(()) => {
// No-op here; prefer GitObjectsLoaded payload for success
self.error = None;
}
Err(e) => {
self.error = Some(e);
}
},
Message::GitObjectsLoaded(data) => {
// Apply the loaded git objects list to the MainView state
if let AppView::Main { state } = &mut self.view {
// Snapshot for change detection if we already had a successful load
let (old_positions, old_nodes) = if state.has_loaded_once {
state.snapshot_old_positions()
} else {
(
std::collections::HashMap::new(),
std::collections::HashMap::new(),
)
};
// Clone old tree before clearing for state restoration
let old_tree = state.git_objects.list.clone();
// Set the new tree
state.git_objects.list = data.git_objects_list;
// Ensure natural sorting for categories except "objects"
MainViewState::sort_tree_for_display(&mut state.git_objects.list);
// Restore expansion and loading state from old tree if this isn't the first load
if state.has_loaded_once {
for new_obj in &mut state.git_objects.list {
new_obj.restore_state_from(&old_tree);
}
// NOW detect changes after full restoration
let _ = state.detect_tree_changes(&old_positions, &old_nodes);
}
state.flatten_tree();
// Try to restore previous selection
if let Some(sel) = state.last_selection.take() {
if let Some(idx) = state
.git_objects
.flat_view
.iter()
.position(|(_, o, _)| MainViewState::selection_key(o) == sel.key)
{
state.git_objects.selected_index = idx;
} else if state.git_objects.selected_index
>= state.git_objects.flat_view.len()
{
state.git_objects.selected_index = 0;
}
} else if state.git_objects.selected_index >= state.git_objects.flat_view.len()
{
state.git_objects.selected_index = 0;
}
// Restore scrolls
if let Some(snap) = state.last_scroll_positions.take() {
state.git_objects.scroll_position = snap
.git_list_scroll
.min(state.git_objects.flat_view.len().saturating_sub(1));
match &mut state.preview_state {
PreviewState::Regular(r) => {
if r.pack_index_widget.is_none() {
r.preview_scroll_position = snap.preview_scroll;
}
// PackIndex widget manages its own scrolling, no restoration needed
}
PreviewState::Pack(p) => {
p.educational_scroll_position = snap.preview_scroll;
p.pack_object_list_scroll_position = snap
.pack_list_scroll
.min(p.pack_object_list.len().saturating_sub(1));
}
}
}
// If there are any items, trigger details and educational content loads
let should_load = !state.git_objects.flat_view.is_empty();
// Mark first successful load complete to enable highlighting on subsequent refreshes
state.has_loaded_once = true;
let _ = state;
if should_load {
let details_msg = self.load_git_object_details(plumber);
self.update(details_msg, plumber);
let content_msg = self.load_educational_content(plumber);
self.update(content_msg, plumber);
}
self.error = None;
}
}
Message::LoadGitObjectInfo(result) => match result {
Ok(info) => {
if let AppView::Main { state } = &mut self.view {
state.git_object_info = info;
self.error = None;
}
}
Err(e) => {
self.error = Some(e);
}
},
Message::LoadEducationalContent(result) => match result {
Ok(preview) => {
if let AppView::Main { state } = &mut self.view {
state.educational_content = preview;
// Only reset to regular state if we're not in a pack preview state
match &mut state.preview_state {
PreviewState::Regular(regular_state) => {
// Clear pack index widget for regular state
regular_state.pack_index_widget = None;
}
PreviewState::Pack(_) => {
// Preserve pack preview state - don't reset it!
}
}
self.error = None;
}
}
Err(e) => {
self.error = Some(e);
}
},
Message::LoadPackIndexDetails(result) => match *result {
Ok(pack_index) => {
if let AppView::Main { state } = &mut self.view {
// Switch to Regular preview state with pack index widget
state.preview_state = PreviewState::Regular(
crate::tui::main_view::RegularPreViewState::new_with_pack_index(
pack_index,
),
);
self.error = None;
}
}
Err(e) => {
self.error = Some(e);
}
},
Message::LoadPackObjects { path, result } => match result {
Ok(objects) => {
if let AppView::Main {
state:
MainViewState {
preview_state: PreviewState::Pack(preview_state),
..
},
} = &mut self.view
{
// Only apply if the message is for the currently previewed pack
if preview_state.pack_file_path == path {
preview_state.pack_object_list = objects;
// Reset selection to first object and update widget
preview_state.selected_pack_object = 0;
preview_state.pack_object_list_scroll_position = 0;
if !preview_state.pack_object_list.is_empty() {
preview_state.pack_object_widget_state = PackObjectWidget::new(
preview_state.pack_object_list[0].clone(),
);
}
self.error = None;
}
}
}
Err(e) => {
self.error = Some(e);
}
},
_ => unreachable!("handle_load_result_message called with non-load-result message"),
}
true
}
// Update the application state based on a message
pub fn update(&mut self, msg: Message, plumber: &crate::GitPlumber) -> bool {
match msg {
Message::Quit => return false,
Message::Refresh => {
// Capture selection + scroll before reload to preserve focus/context
if let AppView::Main { state } = &mut self.view {
state.last_selection = state
.current_selection_key()
.map(|key| super::main_view::SelectionIdentity { key });
// capture scrolls
let preview_scroll = match &state.preview_state {
PreviewState::Regular(r) => {
if r.pack_index_widget.is_some() {
0 // PackIndex widget manages its own scrolling
} else {
r.preview_scroll_position
}
}
PreviewState::Pack(p) => p.educational_scroll_position,
};
let pack_list_scroll = match &state.preview_state {
PreviewState::Pack(p) => p.pack_object_list_scroll_position,
_ => 0,
};
state.last_scroll_positions = Some(super::main_view::ScrollSnapshot {
git_list_scroll: state.git_objects.scroll_position,
preview_scroll,
pack_list_scroll,
});
// Ghosts are pruned during flatten_tree; no explicit cleanup needed here.
}
// Reload everything from scratch
self.effects.push(crate::tui::message::Command::LoadInitial);
}
Message::MainNavigation(_) | Message::OpenPackView | Message::OpenLooseObjectView => {
return self.handle_main_view_mode_message(msg, plumber);
}
Message::PackNavigation(_) => {
return self.handle_pack_view_mode_message(msg);
}
Message::LooseObjectNavigation(_) => {
return self.handle_loose_object_view_mode_message(msg);
}
Message::OpenMainView => {
return self.handle_main_view_mode_message(msg, plumber);
}
// Load result messages
Message::LoadGitObjects(_)
| Message::LoadGitObjectInfo(_)
| Message::LoadEducationalContent(_)
| Message::LoadPackIndexDetails(_)
| Message::LoadPackObjects { .. }
| Message::GitObjectsLoaded(_) => {
return self.handle_load_result_message(msg, plumber);
}
Message::TimerTick => {
// Handle animation timer tick
if let AppView::Main { state } = &mut self.view
&& state.prune_timeouts()
{
state.flatten_tree();
}
}
Message::TerminalResize(width, height) => {
// Handle terminal resize event
let new_size = ratatui::layout::Size { width, height };
self.check_terminal_resize(new_size);
}
Message::KeyEvent(key) => {
// Handle keyboard event
if let Some(msg) = match self.view {
AppView::Main { .. } => crate::tui::main_view::handle_key_event(key, self),
AppView::PackObjectDetail { .. } => {
crate::tui::pack_details::handle_key_event(key, self)
}
AppView::LooseObjectDetail { .. } => {
crate::tui::loose_details::handle_key_event(key, self)
}
} {
return self.update(msg, plumber);
}
}
}
true // Continue running
}
}