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@ -3,15 +3,16 @@ use crossterm::event::{Event, KeyCode, KeyEvent, KeyModifiers};
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use helix_core::Position;
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use helix_view::Editor;
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use helix_view::Theme;
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use std::borrow::Cow;
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use std::string::String;
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pub struct Prompt {
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pub prompt: String,
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pub line: String,
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pub cursor: usize,
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pub completion: Vec<String>,
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pub completion: Vec<Cow<'static, str>>,
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pub completion_selection_index: Option<usize>,
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completion_fn: Box<dyn FnMut(&str) -> Vec<String>>,
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completion_fn: Box<dyn FnMut(&str) -> Vec<Cow<'static, str>>>,
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callback_fn: Box<dyn FnMut(&mut Editor, &str, PromptEvent)>,
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}
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@ -28,7 +29,7 @@ pub enum PromptEvent {
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impl Prompt {
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pub fn new(
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prompt: String,
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mut completion_fn: impl FnMut(&str) -> Vec<String> + 'static,
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mut completion_fn: impl FnMut(&str) -> Vec<Cow<'static, str>> + 'static,
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callback_fn: impl FnMut(&mut Editor, &str, PromptEvent) + 'static,
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) -> Prompt {
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Prompt {
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@ -83,7 +84,19 @@ impl Prompt {
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let index =
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self.completion_selection_index.map(|i| i + 1).unwrap_or(0) % self.completion.len();
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self.completion_selection_index = Some(index);
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self.line = self.completion[index].clone();
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let item = &self.completion[index];
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// replace the last arg
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if let Some(pos) = self.line.rfind(' ') {
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self.line.replace_range(pos + 1.., item);
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} else {
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// need toowned_clone_into nightly feature to reuse allocation
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self.line = item.to_string();
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}
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self.move_end();
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// TODO: recalculate completion when completion item is accepted, (Enter)
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}
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pub fn exit_selection(&mut self) {
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self.completion_selection_index = None;
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@ -175,9 +188,14 @@ impl Component for Prompt {
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)));
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match event {
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// char or shift char
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KeyEvent {
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code: KeyCode::Char(c),
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modifiers: KeyModifiers::NONE,
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}
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| KeyEvent {
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code: KeyCode::Char(c),
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modifiers: KeyModifiers::SHIFT,
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} => {
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self.insert_char(c);
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(self.callback_fn)(cx.editor, &self.line, PromptEvent::Update);
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