Add custom event type replacing crossterm's Event (#3169)

Ported over from 61365dfbf3 in the `gui` branch. This will allow
adding our own events, most notably an idle timer event (useful
for adding debounced input in [dynamic pickers][1] used by interactive
global search and workspace symbols).

[1]: https://github.com/helix-editor/helix/pull/3110

Co-authored-by: Blaž Hrastnik <blaz@mxxn.io>
pull/3366/head
Gokul Soumya 2 years ago committed by GitHub
parent 4ce5a94552
commit 634b6d455f
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23

@ -12,7 +12,7 @@ use serde_json::json;
use crate::{
args::Args,
commands::apply_workspace_edit,
compositor::Compositor,
compositor::{Compositor, Event},
config::Config,
job::Jobs,
keymap::Keymaps,
@ -29,7 +29,7 @@ use std::{
use anyhow::{Context, Error};
use crossterm::{
event::{DisableMouseCapture, EnableMouseCapture, Event},
event::{DisableMouseCapture, EnableMouseCapture, Event as CrosstermEvent},
execute, terminal,
tty::IsTty,
};
@ -418,7 +418,7 @@ impl Application {
}
}
pub fn handle_terminal_events(&mut self, event: Result<Event, crossterm::ErrorKind>) {
pub fn handle_terminal_events(&mut self, event: Result<CrosstermEvent, crossterm::ErrorKind>) {
let mut cx = crate::compositor::Context {
editor: &mut self.editor,
jobs: &mut self.jobs,
@ -426,13 +426,12 @@ impl Application {
};
// Handle key events
let should_redraw = match event {
Ok(Event::Resize(width, height)) => {
Ok(CrosstermEvent::Resize(width, height)) => {
self.compositor.resize(width, height);
self.compositor
.handle_event(Event::Resize(width, height), &mut cx)
}
Ok(event) => self.compositor.handle_event(event, &mut cx),
Ok(event) => self.compositor.handle_event(event.into(), &mut cx),
Err(x) => panic!("{}", x),
};

@ -4846,7 +4846,7 @@ fn replay_macro(cx: &mut Context) {
cx.callback = Some(Box::new(move |compositor, cx| {
for _ in 0..count {
for &key in keys.iter() {
compositor.handle_event(crossterm::event::Event::Key(key.into()), cx);
compositor.handle_event(compositor::Event::Key(key), cx);
}
}
// The macro under replay is cleared at the end of the callback, not in the

@ -4,8 +4,6 @@
use helix_core::Position;
use helix_view::graphics::{CursorKind, Rect};
use crossterm::event::Event;
#[cfg(feature = "integration")]
use tui::backend::TestBackend;
use tui::buffer::Buffer as Surface;
@ -18,9 +16,10 @@ pub enum EventResult {
Consumed(Option<Callback>),
}
use crate::job::Jobs;
use helix_view::Editor;
use crate::job::Jobs;
pub use helix_view::input::Event;
pub struct Context<'a> {
pub editor: &'a mut Editor,
@ -161,7 +160,7 @@ impl Compositor {
pub fn handle_event(&mut self, event: Event, cx: &mut Context) -> bool {
// If it is a key event and a macro is being recorded, push the key event to the recording.
if let (Event::Key(key), Some((_, keys))) = (event, &mut cx.editor.macro_recording) {
keys.push(key.into());
keys.push(key);
}
let mut callbacks = Vec::new();

@ -1,5 +1,4 @@
use crate::compositor::{Component, Context, EventResult};
use crossterm::event::{Event, KeyCode, KeyEvent};
use crate::compositor::{Component, Context, Event, EventResult};
use helix_view::editor::CompleteAction;
use tui::buffer::Buffer as Surface;
use tui::text::Spans;
@ -7,7 +6,11 @@ use tui::text::Spans;
use std::borrow::Cow;
use helix_core::{Change, Transaction};
use helix_view::{graphics::Rect, Document, Editor};
use helix_view::{
graphics::Rect,
input::{KeyCode, KeyEvent},
Document, Editor,
};
use crate::commands;
use crate::ui::{menu, Markdown, Menu, Popup, PromptEvent};

@ -1,6 +1,6 @@
use crate::{
commands,
compositor::{Component, Context, EventResult},
compositor::{Component, Context, Event, EventResult},
job, key,
keymap::{KeymapResult, Keymaps},
ui::{Completion, ProgressSpinners},
@ -19,13 +19,12 @@ use helix_view::{
document::Mode,
editor::{CompleteAction, CursorShapeConfig},
graphics::{Color, CursorKind, Modifier, Rect, Style},
input::KeyEvent,
input::{KeyEvent, MouseButton, MouseEvent, MouseEventKind},
keyboard::{KeyCode, KeyModifiers},
Document, Editor, Theme, View,
};
use std::borrow::Cow;
use crossterm::event::{Event, MouseButton, MouseEvent, MouseEventKind};
use tui::buffer::Buffer as Surface;
use super::lsp::SignatureHelp;
@ -966,7 +965,7 @@ impl EditorView {
if let Some((pos, view_id)) = pos_and_view(editor, row, column) {
let doc = editor.document_mut(editor.tree.get(view_id).doc).unwrap();
if modifiers == crossterm::event::KeyModifiers::ALT {
if modifiers == KeyModifiers::ALT {
let selection = doc.selection(view_id).clone();
doc.set_selection(view_id, selection.push(Range::point(pos)));
} else {
@ -1068,7 +1067,7 @@ impl EditorView {
let line = coords.row + view.offset.row;
if let Ok(pos) = doc.text().try_line_to_char(line) {
doc.set_selection(view_id, Selection::point(pos));
if modifiers == crossterm::event::KeyModifiers::ALT {
if modifiers == KeyModifiers::ALT {
commands::MappableCommand::dap_edit_log.execute(cxt);
} else {
commands::MappableCommand::dap_edit_condition.execute(cxt);
@ -1087,7 +1086,7 @@ impl EditorView {
return EventResult::Ignored(None);
}
if modifiers == crossterm::event::KeyModifiers::ALT {
if modifiers == KeyModifiers::ALT {
commands::MappableCommand::replace_selections_with_primary_clipboard
.execute(cxt);
@ -1132,9 +1131,8 @@ impl Component for EditorView {
// Handling it here but not re-rendering will cause flashing
EventResult::Consumed(None)
}
Event::Key(key) => {
Event::Key(mut key) => {
cx.editor.reset_idle_timer();
let mut key = KeyEvent::from(key);
canonicalize_key(&mut key);
// clear status

@ -1,10 +1,9 @@
use std::{borrow::Cow, path::PathBuf};
use crate::{
compositor::{Callback, Component, Compositor, Context, EventResult},
compositor::{Callback, Component, Compositor, Context, Event, EventResult},
ctrl, key, shift,
};
use crossterm::event::Event;
use tui::{buffer::Buffer as Surface, text::Spans, widgets::Table};
pub use tui::widgets::{Cell, Row};
@ -237,7 +236,7 @@ impl<T: Item + 'static> Component for Menu<T> {
compositor.pop();
}));
match event.into() {
match event {
// esc or ctrl-c aborts the completion and closes the menu
key!(Esc) | ctrl!('c') => {
(self.callback_fn)(cx.editor, self.selection(), MenuEvent::Abort);

@ -1,4 +1,3 @@
use crossterm::event::Event;
use helix_core::Position;
use helix_view::{
graphics::{CursorKind, Rect},
@ -6,7 +5,7 @@ use helix_view::{
};
use tui::buffer::Buffer;
use crate::compositor::{Component, Context, EventResult};
use crate::compositor::{Component, Context, Event, EventResult};
/// Contains a component placed in the center of the parent component
pub struct Overlay<T> {

@ -1,9 +1,8 @@
use crate::{
compositor::{Component, Compositor, Context, EventResult},
compositor::{Component, Compositor, Context, Event, EventResult},
ctrl, key, shift,
ui::{self, EditorView},
};
use crossterm::event::Event;
use tui::{
buffer::Buffer as Surface,
widgets::{Block, BorderType, Borders},
@ -502,7 +501,7 @@ impl<T: Item + 'static> Component for Picker<T> {
compositor.last_picker = compositor.pop();
})));
match key_event.into() {
match key_event {
shift!(Tab) | key!(Up) | ctrl!('p') => {
self.move_by(1, Direction::Backward);
}

@ -1,9 +1,8 @@
use crate::{
commands::Open,
compositor::{Callback, Component, Context, EventResult},
compositor::{Callback, Component, Context, Event, EventResult},
ctrl, key,
};
use crossterm::event::Event;
use tui::buffer::Buffer as Surface;
use helix_core::Position;
@ -149,7 +148,7 @@ impl<T: Component> Component for Popup<T> {
_ => return EventResult::Ignored(None),
};
if key!(Esc) == key.into() && self.ignore_escape_key {
if key!(Esc) == key && self.ignore_escape_key {
return EventResult::Ignored(None);
}
@ -158,7 +157,7 @@ impl<T: Component> Component for Popup<T> {
compositor.remove(self.id.as_ref());
});
match key.into() {
match key {
// esc or ctrl-c aborts the completion and closes the menu
key!(Esc) | ctrl!('c') => {
let _ = self.contents.handle_event(event, cx);

@ -1,6 +1,5 @@
use crate::compositor::{Component, Compositor, Context, EventResult};
use crate::compositor::{Component, Compositor, Context, Event, EventResult};
use crate::{alt, ctrl, key, shift, ui};
use crossterm::event::Event;
use helix_view::input::KeyEvent;
use helix_view::keyboard::KeyCode;
use std::{borrow::Cow, ops::RangeFrom};
@ -479,7 +478,7 @@ impl Component for Prompt {
compositor.pop();
})));
match event.into() {
match event {
ctrl!('c') | key!(Esc) => {
(self.callback_fn)(cx, &self.line, PromptEvent::Abort);
return close_fn;

@ -4,8 +4,53 @@ use helix_core::unicode::{segmentation::UnicodeSegmentation, width::UnicodeWidth
use serde::de::{self, Deserialize, Deserializer};
use std::fmt;
use crate::keyboard::{KeyCode, KeyModifiers};
pub use crate::keyboard::{KeyCode, KeyModifiers};
#[derive(Debug, PartialOrd, PartialEq, Eq, Clone, Copy, Hash)]
pub enum Event {
Key(KeyEvent),
Mouse(MouseEvent),
Resize(u16, u16),
}
#[derive(Debug, PartialOrd, PartialEq, Eq, Clone, Copy, Hash)]
pub struct MouseEvent {
/// The kind of mouse event that was caused.
pub kind: MouseEventKind,
/// The column that the event occurred on.
pub column: u16,
/// The row that the event occurred on.
pub row: u16,
/// The key modifiers active when the event occurred.
pub modifiers: KeyModifiers,
}
#[derive(Debug, PartialOrd, PartialEq, Eq, Clone, Copy, Hash)]
pub enum MouseEventKind {
/// Pressed mouse button. Contains the button that was pressed.
Down(MouseButton),
/// Released mouse button. Contains the button that was released.
Up(MouseButton),
/// Moved the mouse cursor while pressing the contained mouse button.
Drag(MouseButton),
/// Moved the mouse cursor while not pressing a mouse button.
Moved,
/// Scrolled mouse wheel downwards (towards the user).
ScrollDown,
/// Scrolled mouse wheel upwards (away from the user).
ScrollUp,
}
/// Represents a mouse button.
#[derive(Debug, PartialOrd, PartialEq, Eq, Clone, Copy, Hash)]
pub enum MouseButton {
/// Left mouse button.
Left,
/// Right mouse button.
Right,
/// Middle mouse button.
Middle,
}
/// Represents a key event.
// We use a newtype here because we want to customize Deserialize and Display.
#[derive(Debug, PartialEq, Eq, PartialOrd, Ord, Clone, Copy, Hash)]
@ -219,6 +264,61 @@ impl<'de> Deserialize<'de> for KeyEvent {
}
}
#[cfg(feature = "term")]
impl From<crossterm::event::Event> for Event {
fn from(event: crossterm::event::Event) -> Self {
match event {
crossterm::event::Event::Key(key) => Self::Key(key.into()),
crossterm::event::Event::Mouse(mouse) => Self::Mouse(mouse.into()),
crossterm::event::Event::Resize(w, h) => Self::Resize(w, h),
}
}
}
#[cfg(feature = "term")]
impl From<crossterm::event::MouseEvent> for MouseEvent {
fn from(
crossterm::event::MouseEvent {
kind,
column,
row,
modifiers,
}: crossterm::event::MouseEvent,
) -> Self {
Self {
kind: kind.into(),
column,
row,
modifiers: modifiers.into(),
}
}
}
#[cfg(feature = "term")]
impl From<crossterm::event::MouseEventKind> for MouseEventKind {
fn from(kind: crossterm::event::MouseEventKind) -> Self {
match kind {
crossterm::event::MouseEventKind::Down(button) => Self::Down(button.into()),
crossterm::event::MouseEventKind::Up(button) => Self::Down(button.into()),
crossterm::event::MouseEventKind::Drag(button) => Self::Drag(button.into()),
crossterm::event::MouseEventKind::Moved => Self::Moved,
crossterm::event::MouseEventKind::ScrollDown => Self::ScrollDown,
crossterm::event::MouseEventKind::ScrollUp => Self::ScrollUp,
}
}
}
#[cfg(feature = "term")]
impl From<crossterm::event::MouseButton> for MouseButton {
fn from(button: crossterm::event::MouseButton) -> Self {
match button {
crossterm::event::MouseButton::Left => MouseButton::Left,
crossterm::event::MouseButton::Right => MouseButton::Right,
crossterm::event::MouseButton::Middle => MouseButton::Middle,
}
}
}
#[cfg(feature = "term")]
impl From<crossterm::event::KeyEvent> for KeyEvent {
fn from(crossterm::event::KeyEvent { code, modifiers }: crossterm::event::KeyEvent) -> Self {

@ -55,7 +55,6 @@ impl From<crossterm::event::KeyModifiers> for KeyModifiers {
/// Represents a key.
#[derive(Debug, PartialOrd, Ord, PartialEq, Eq, Clone, Copy, Hash)]
#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
pub enum KeyCode {
/// Backspace key.
Backspace,

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