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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,173 @@ | ||
| use std::path::PathBuf; | ||
|
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| use crossbeam::channel::Receiver; | ||
| use crosstermion::input::Event; | ||
| use dua::{traverse::{Traversal, Tree, EntryData}, WalkResult, WalkOptions}; | ||
| use tui::prelude::Backend; | ||
| use tui_react::Terminal; | ||
| use anyhow::Result; | ||
|
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| use crate::interactive::widgets::MainWindow; | ||
|
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| use super::{DisplayOptions, AppState, ProcessingResult, ByteVisualization, sorted_entries, refresh_key}; | ||
|
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|
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| /// State and methods representing the interactive disk usage analyser for the terminal | ||
| pub struct TerminalApp { | ||
| pub traversal: Traversal, | ||
| pub display: DisplayOptions, | ||
| pub state: AppState, | ||
| pub window: MainWindow, | ||
| } | ||
|
|
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| type KeyboardInputAndApp = (crossbeam::channel::Receiver<Event>, TerminalApp); | ||
|
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| impl TerminalApp { | ||
| pub fn refresh_view<B>(&mut self, terminal: &mut Terminal<B>) | ||
| where | ||
| B: Backend, | ||
| { | ||
| // Use an event that does nothing to trigger a refresh | ||
| self.state | ||
| .process_events( | ||
| &mut self.window, | ||
| &mut self.traversal, | ||
| &mut self.display, | ||
| terminal, | ||
| std::iter::once(Event::Key(refresh_key())), | ||
| ) | ||
| .ok(); | ||
| } | ||
|
|
||
| pub fn process_events<B>( | ||
| &mut self, | ||
| terminal: &mut Terminal<B>, | ||
| events: impl Iterator<Item = Event>, | ||
| ) -> Result<WalkResult> | ||
| where | ||
| B: Backend, | ||
| { | ||
| match self.state.process_events( | ||
| &mut self.window, | ||
| &mut self.traversal, | ||
| &mut self.display, | ||
| terminal, | ||
| events, | ||
| )? { | ||
| ProcessingResult::Finished(res) | ProcessingResult::ExitRequested(res) => Ok(res), | ||
| } | ||
| } | ||
|
|
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| pub fn initialize<B>( | ||
| terminal: &mut Terminal<B>, | ||
| options: WalkOptions, | ||
| input_paths: Vec<PathBuf>, | ||
| keys_rx: Receiver<Event>, | ||
| ) -> Result<Option<KeyboardInputAndApp>> | ||
| where | ||
| B: Backend, | ||
| { | ||
| terminal.hide_cursor()?; | ||
| terminal.clear()?; | ||
|
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| let mut display: DisplayOptions = options.clone().into(); | ||
| display.byte_vis = ByteVisualization::PercentageAndBar; | ||
|
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| let mut window = MainWindow::default(); | ||
|
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| // #[inline] | ||
| // fn fetch_buffered_key_events(keys_rx: &Receiver<Event>) -> Vec<Event> { | ||
| // let mut keys = Vec::new(); | ||
| // while let Ok(key) = keys_rx.try_recv() { | ||
| // keys.push(key); | ||
| // } | ||
| // keys | ||
| // } | ||
|
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| let mut state = AppState { | ||
| is_scanning: false, | ||
| ..Default::default() | ||
| }; | ||
|
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| // let mut received_events = false; | ||
| // let traversal = | ||
| // Traversal::from_walk(options, input_paths, &keys_rx, |traversal, event| { | ||
| // if !received_events { | ||
| // state.navigation_mut().view_root = traversal.root_index; | ||
| // } | ||
| // state.entries = sorted_entries( | ||
| // &traversal.tree, | ||
| // state.navigation().view_root, | ||
| // state.sorting, | ||
| // state.glob_root(), | ||
| // ); | ||
| // if !received_events { | ||
| // state.navigation_mut().selected = state.entries.first().map(|b| b.index); | ||
| // } | ||
| // state.reset_message(); // force "scanning" to appear | ||
|
|
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| // let mut events = fetch_buffered_key_events(&keys_rx); | ||
| // if let Some(event) = event { | ||
| // // This update is triggered by a user event, insert it | ||
| // // before any events fetched later. | ||
| // events.insert(0, event); | ||
| // } | ||
| // received_events |= !events.is_empty(); | ||
|
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| // let should_exit = match state.process_events( | ||
| // &mut window, | ||
| // traversal, | ||
| // &mut display, | ||
| // terminal, | ||
| // events.into_iter(), | ||
| // )? { | ||
| // ProcessingResult::ExitRequested(_) => true, | ||
| // ProcessingResult::Finished(_) => false, | ||
| // }; | ||
|
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| // Ok(should_exit) | ||
| // })?; | ||
|
|
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| // let traversal = match traversal { | ||
| // Some(t) => t, | ||
| // None => return Ok(None), | ||
| // }; | ||
|
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| // state.is_scanning = false; | ||
| // if !received_events { | ||
| // } | ||
|
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| let traversal = { | ||
| let mut tree = Tree::new(); | ||
| let root_index = tree.add_node(EntryData::default()); | ||
| Traversal { | ||
| tree, | ||
| root_index, | ||
| entries_traversed: 0, | ||
| start: std::time::Instant::now(), | ||
| elapsed: None, | ||
| io_errors: 0, | ||
| total_bytes: None, | ||
| } | ||
| }; | ||
|
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| state.navigation_mut().view_root = traversal.root_index; | ||
| state.entries = sorted_entries( | ||
| &traversal.tree, | ||
| state.navigation().view_root, | ||
| state.sorting, | ||
| state.glob_root(), | ||
| ); | ||
| state.navigation_mut().selected = state.entries.first().map(|b| b.index); | ||
|
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| let mut app = TerminalApp { | ||
| state, | ||
| display, | ||
| traversal, | ||
| window, | ||
| }; | ||
| app.refresh_view(terminal); | ||
|
|
||
| Ok(Some((keys_rx, app))) | ||
| } | ||
| } |
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