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use std::io;
use crate::app::AppStateCmdResult;
use crate::app_context::AppContext;
use crate::browser_states::BrowserState;
use crate::commands::Command;
use crate::external::{self, Launchable};
use crate::help_states::HelpState;
use crate::screens::Screen;
use crate::task_sync::TaskLifetime;
use crate::tree_options::{OptionBool, TreeOptions};
use crate::verb_invocation::VerbInvocation;
use crate::verbs::{Verb, VerbExecutor};
impl VerbExecutor for BrowserState {
fn execute_verb(
&self,
verb: &Verb,
invocation: &VerbInvocation,
screen: &mut Screen,
con: &AppContext,
) -> io::Result<AppStateCmdResult> {
if let Some(err) = verb.match_error(invocation) {
return Ok(AppStateCmdResult::DisplayError(err));
}
let tree = self.displayed_tree();
let line = &tree.selected_line();
Ok(match verb.execution.as_ref() {
":back" => AppStateCmdResult::PopState,
":focus" => {
let mut path = tree.selected_line().target();
if !path.is_dir() {
path = path.parent().unwrap().to_path_buf();
}
AppStateCmdResult::from_optional_state(
BrowserState::new(
path,
tree.options.clone(),
screen,
&TaskLifetime::unlimited(),
),
tree.options.pattern.to_command(),
)
}
":help" => {
AppStateCmdResult::NewState(Box::new(HelpState::new(screen, con)), Command::new())
}
":open" => AppStateCmdResult::from(Launchable::opener(line.target())),
":parent" => match &line.path.parent() {
Some(path) => AppStateCmdResult::from_optional_state(
BrowserState::new(
path.to_path_buf(),
tree.options.clone(),
screen,
&TaskLifetime::unlimited(),
),
tree.options.pattern.to_command(),
),
None => AppStateCmdResult::DisplayError("no parent found".to_string()),
},
":print_path" => external::print_path(&line.target(), con)?,
":print_tree" => external::print_tree(&tree, screen, con)?,
":toggle_dates" => self.with_new_options(screen, &|o| o.show_dates ^= true),
":toggle_files" => {
self.with_new_options(screen, &|o: &mut TreeOptions| o.only_folders ^= true)
}
":toggle_hidden" => self.with_new_options(screen, &|o| o.show_hidden ^= true),
":toggle_git_ignore" => self.with_new_options(screen, &|options| {
options.respect_git_ignore = match options.respect_git_ignore {
OptionBool::Auto => {
if tree.nb_gitignored > 0 {
OptionBool::No
} else {
OptionBool::Yes
}
}
OptionBool::Yes => OptionBool::No,
OptionBool::No => OptionBool::Yes,
};
}),
":toggle_perm" => self.with_new_options(screen, &|o| o.show_permissions ^= true),
":toggle_sizes" => self.with_new_options(screen, &|o| o.show_sizes ^= true),
":toggle_trim_root" => self.with_new_options(screen, &|o| o.trim_root ^= true),
":quit" => AppStateCmdResult::Quit,
_ => verb.to_cmd_result(&line.path.clone(), &invocation.args, screen, con)?,
})
}
}
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