diff options
Diffstat (limited to 'helix-term/src/commands.rs')
| -rw-r--r-- | helix-term/src/commands.rs | 167 |
1 files changed, 117 insertions, 50 deletions
diff --git a/helix-term/src/commands.rs b/helix-term/src/commands.rs index 27bfbe9a..338468c2 100644 --- a/helix-term/src/commands.rs +++ b/helix-term/src/commands.rs @@ -809,7 +809,115 @@ pub fn append_mode(cx: &mut Context) { doc.set_selection(view.id, selection); } -const COMMAND_LIST: &[&str] = &["write", "open", "quit", "quit!"]; +mod cmd { + use super::*; + use std::collections::HashMap; + + use helix_view::editor::Action; + + #[derive(Clone)] + pub struct Command { + pub name: &'static str, + pub alias: Option<&'static str>, + pub doc: &'static str, + // params, flags, helper, completer + pub fun: fn(&mut Editor, &[&str], PromptEvent), + } + + fn quit(editor: &mut Editor, args: &[&str], event: PromptEvent) { + // last view and we have unsaved changes + if editor.tree.views().count() == 1 { + let modified: Vec<_> = editor + .documents() + .filter(|doc| doc.is_modified()) + .map(|doc| { + doc.relative_path() + .and_then(|path| path.to_str()) + .unwrap_or("[scratch]") + }) + .collect(); + + if !modified.is_empty() { + let err = format!( + "{} unsaved buffer(s) remaining: {:?}", + modified.len(), + modified + ); + editor.set_error(err); + return; + } + } + editor.close(editor.view().id, /* close_buffer */ false); + } + + fn force_quit(editor: &mut Editor, args: &[&str], event: PromptEvent) { + editor.close(editor.view().id, /* close_buffer */ false); + } + + fn open(editor: &mut Editor, args: &[&str], event: PromptEvent) { + let path = args[0]; + editor.open(path.into(), Action::Replace); + } + + fn write(editor: &mut Editor, args: &[&str], event: PromptEvent) { + let id = editor.view().doc; + let doc = &mut editor.documents[id]; + if doc.path().is_none() { + editor.set_error("cannot write a buffer without a filename".to_string()); + return; + } + tokio::spawn(doc.save()); + } + fn new_file(editor: &mut Editor, args: &[&str], event: PromptEvent) { + editor.new_file(Action::Replace); + } + + pub const COMMAND_LIST: &[Command] = &[ + Command { + name: "quit", + alias: Some("q"), + doc: "Close the current view.", + fun: quit, + }, + Command { + name: "quit!", + alias: Some("q!"), + doc: "Close the current view.", + fun: force_quit, + }, + Command { + name: "open", + alias: Some("o"), + doc: "Open a file from disk into the current view.", + fun: open, + }, + Command { + name: "write", + alias: Some("w"), + doc: "Write changes to disk.", + fun: write, + }, + Command { + name: "new", + alias: Some("n"), + doc: "Create a new scratch buffer.", + fun: new_file, + }, + ]; + + pub static COMMANDS: Lazy<HashMap<&'static str, Command>> = Lazy::new(|| { + let mut map = HashMap::new(); + + for cmd in COMMAND_LIST { + map.insert(cmd.name, cmd.clone()); + if let Some(alias) = cmd.alias { + map.insert(alias, cmd.clone()); + } + } + + map + }); +} pub fn command_mode(cx: &mut Context) { let prompt = Prompt::new( @@ -823,10 +931,10 @@ pub fn command_mode(cx: &mut Context) { if parts.len() <= 1 { use std::{borrow::Cow, ops::Range}; let end = 0..; - COMMAND_LIST + cmd::COMMAND_LIST .iter() - .filter(|command| command.contains(input)) - .map(|command| (end.clone(), Cow::Borrowed(*command))) + .filter(|command| command.name.contains(input)) + .map(|command| (end.clone(), Cow::Borrowed(command.name))) .collect() } else { let part = parts.last().unwrap(); @@ -854,52 +962,11 @@ pub fn command_mode(cx: &mut Context) { let parts = input.split_ascii_whitespace().collect::<Vec<&str>>(); - match *parts.as_slice() { - ["q"] | ["quit"] => { - // last view and we have unsaved changes - if editor.tree.views().count() == 1 { - let modified: Vec<_> = editor - .documents() - .filter(|doc| doc.is_modified()) - .map(|doc| { - doc.relative_path() - .and_then(|path| path.to_str()) - .unwrap_or("[scratch]") - }) - .collect(); - - if !modified.is_empty() { - let err = format!( - "{} unsaved buffer(s) remaining: {:?}", - modified.len(), - modified - ); - editor.set_error(err); - return; - } - } - editor.close(editor.view().id, /* close_buffer */ false); - } - ["q!"] | ["quit!"] => { - editor.close(editor.view().id, /* close_buffer */ false); - } - ["o", path] | ["open", path] => { - editor.open(path.into(), Action::Replace); - } - ["w"] | ["write"] => { - let id = editor.view().doc; - let doc = &mut editor.documents[id]; - if doc.path().is_none() { - editor.set_error("cannot write a buffer without a filename".to_string()); - return; - } - tokio::spawn(doc.save()); - } - ["new"] => { - editor.new_file(Action::Replace); - } - _ => (), - } + if let Some(cmd) = cmd::COMMANDS.get(parts[0]) { + (cmd.fun)(editor, &parts[1..], event); + } else { + editor.set_error(format!("no such command: '{}'", parts[0])); + }; }, ); cx.push_layer(Box::new(prompt)); |