212 lines
5.7 KiB
Rust
212 lines
5.7 KiB
Rust
//! ## Context
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//!
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//! `Context` is the module which provides all the functionalities related to the UI data holder, called Context
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/**
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* MIT License
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*
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* termscp - Copyright (c) 2021 Christian Visintin
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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// Locals
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use super::input::InputHandler;
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use super::store::Store;
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use crate::filetransfer::FileTransferParams;
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use crate::system::config_client::ConfigClient;
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use crate::system::theme_provider::ThemeProvider;
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// Includes
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#[cfg(target_family = "unix")]
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use crossterm::{
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event::DisableMouseCapture,
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execute,
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terminal::{EnterAlternateScreen, LeaveAlternateScreen},
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};
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use std::io::{stdout, Stdout};
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use tuirealm::tui::backend::CrosstermBackend;
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use tuirealm::tui::Terminal;
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type TuiTerminal = Terminal<CrosstermBackend<Stdout>>;
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/// ## Context
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///
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/// Context holds data structures used by the ui
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pub struct Context {
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ft_params: Option<FileTransferParams>,
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config_client: ConfigClient,
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pub(crate) store: Store,
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input_hnd: InputHandler,
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pub(crate) terminal: TuiTerminal,
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theme_provider: ThemeProvider,
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error: Option<String>,
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}
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impl Context {
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/// ### new
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///
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/// Instantiates a new Context
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pub fn new(
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config_client: ConfigClient,
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theme_provider: ThemeProvider,
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error: Option<String>,
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) -> Context {
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Context {
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ft_params: None,
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config_client,
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store: Store::init(),
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input_hnd: InputHandler::new(),
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terminal: Terminal::new(CrosstermBackend::new(Self::stdout())).unwrap(),
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theme_provider,
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error,
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}
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}
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// -- getters
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pub fn ft_params(&self) -> Option<&FileTransferParams> {
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self.ft_params.as_ref()
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}
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pub fn config(&self) -> &ConfigClient {
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&self.config_client
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}
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pub fn config_mut(&mut self) -> &mut ConfigClient {
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&mut self.config_client
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}
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pub(crate) fn input_hnd(&self) -> &InputHandler {
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&self.input_hnd
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}
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pub(crate) fn store(&self) -> &Store {
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&self.store
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}
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pub(crate) fn store_mut(&mut self) -> &mut Store {
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&mut self.store
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}
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pub fn theme_provider(&self) -> &ThemeProvider {
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&self.theme_provider
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}
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pub fn theme_provider_mut(&mut self) -> &mut ThemeProvider {
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&mut self.theme_provider
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}
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pub fn terminal(&mut self) -> &mut TuiTerminal {
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&mut self.terminal
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}
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// -- setter
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pub fn set_ftparams(&mut self, params: FileTransferParams) {
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self.ft_params = Some(params);
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}
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// -- error
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/// ### set_error
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///
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/// Set context error
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pub fn set_error(&mut self, err: String) {
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self.error = Some(err);
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}
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/// ### error
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///
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/// Get error message and remove it from the context
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pub fn error(&mut self) -> Option<String> {
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self.error.take()
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}
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/// ### enter_alternate_screen
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///
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/// Enter alternate screen (gui window)
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#[cfg(target_family = "unix")]
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pub fn enter_alternate_screen(&mut self) {
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match execute!(
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self.terminal.backend_mut(),
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EnterAlternateScreen,
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DisableMouseCapture
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) {
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Err(err) => error!("Failed to enter alternate screen: {}", err),
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Ok(_) => info!("Entered alternate screen"),
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}
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}
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/// ### enter_alternate_screen
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///
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/// Enter alternate screen (gui window)
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#[cfg(target_family = "windows")]
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pub fn enter_alternate_screen(&self) {}
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/// ### leave_alternate_screen
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///
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/// Go back to normal screen (gui window)
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#[cfg(target_family = "unix")]
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pub fn leave_alternate_screen(&mut self) {
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match execute!(
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self.terminal.backend_mut(),
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LeaveAlternateScreen,
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DisableMouseCapture
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) {
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Err(err) => error!("Failed to leave alternate screen: {}", err),
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Ok(_) => info!("Left alternate screen"),
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}
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}
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/// ### leave_alternate_screen
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///
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/// Go back to normal screen (gui window)
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#[cfg(target_family = "windows")]
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pub fn leave_alternate_screen(&self) {}
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/// ### clear_screen
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///
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/// Clear terminal screen
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pub fn clear_screen(&mut self) {
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match self.terminal.clear() {
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Err(err) => error!("Failed to clear screen: {}", err),
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Ok(_) => info!("Cleared screen"),
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}
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}
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#[cfg(target_family = "unix")]
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fn stdout() -> Stdout {
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let mut stdout = stdout();
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assert!(execute!(stdout, EnterAlternateScreen).is_ok());
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stdout
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}
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#[cfg(target_family = "windows")]
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fn stdout() -> Stdout {
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stdout()
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}
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}
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impl Drop for Context {
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fn drop(&mut self) {
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// Re-enable terminal stuff
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self.leave_alternate_screen();
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}
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}
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