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use crate::{
app_context::AppContext,
app_state::AppStateCmdResult,
browser_states::BrowserState,
commands::Command,
conf::{self, Conf},
errors::ProgramError,
external::{self, Launchable},
help_states::HelpState,
screens::Screen,
task_sync::TaskLifetime,
tree_options::TreeOptions,
verb_invocation::VerbInvocation,
verbs::{Verb, VerbExecutor},
};
impl VerbExecutor for HelpState {
fn execute_verb(
&mut self,
verb: &Verb,
invocation: &VerbInvocation,
screen: &mut Screen,
con: &AppContext,
) -> Result<AppStateCmdResult, ProgramError> {
if let Some(err) = verb.match_error(invocation) {
return Ok(AppStateCmdResult::DisplayError(err));
}
Ok(match verb.execution.as_ref() {
":back" => AppStateCmdResult::PopState,
":focus" | ":parent" => AppStateCmdResult::from_optional_state(
BrowserState::new(
conf::dir(),
TreeOptions::default(),
screen,
&TaskLifetime::unlimited(),
),
Command::new(),
),
":help" => AppStateCmdResult::Keep,
":line_down" => {
self.scroll += 1;
AppStateCmdResult::Keep
}
":line_up" => {
self.scroll -= 1;
AppStateCmdResult::Keep
}
":open" => AppStateCmdResult::from(Launchable::opener(Conf::default_location())),
":page_down" => {
self.scroll += self.area.height as i32;
AppStateCmdResult::Keep
}
":page_up" => {
self.scroll -= self.area.height as i32;
AppStateCmdResult::Keep
}
":print_path" => external::print_path(&Conf::default_location(), con)?,
":quit" => AppStateCmdResult::Quit,
":focus_user_home" | ":focus_root" => AppStateCmdResult::PopStateAndReapply,
_ if verb.execution.starts_with(":toggle") => AppStateCmdResult::PopStateAndReapply,
_ if verb.execution.starts_with(':') => AppStateCmdResult::Keep,
_ => verb.to_cmd_result(
&Conf::default_location(),
&invocation.args,
screen,
con,
)?,
})
}
}