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Term backend

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This commit is contained in:
Blaž Hrastnik 2022-03-29 15:11:26 +09:00
parent 61365dfbf3
commit 9dd9515a8d
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GPG Key ID: 1238B9C4AD889640
3 changed files with 99 additions and 98 deletions
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93
helix-view/src/backend/term.rs Normal file
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@ -0,0 +1,93 @@
use crate::input::{
Event, KeyCode, KeyEvent, KeyModifiers, MouseButton, MouseEvent, MouseEventKind,
};
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),
}
}
}
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(),
}
}
}
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,
}
}
}
impl From<crossterm::event::KeyEvent> for KeyEvent {
fn from(crossterm::event::KeyEvent { code, modifiers }: crossterm::event::KeyEvent) -> Self {
if code == crossterm::event::KeyCode::BackTab {
// special case for BackTab -> Shift-Tab
let mut modifiers: KeyModifiers = modifiers.into();
modifiers.insert(KeyModifiers::SHIFT);
Self {
code: KeyCode::Tab,
modifiers,
}
} else {
Self {
code: code.into(),
modifiers: modifiers.into(),
}
}
}
}
impl From<KeyEvent> for crossterm::event::KeyEvent {
fn from(KeyEvent { code, modifiers }: KeyEvent) -> Self {
if code == KeyCode::Tab && modifiers.contains(KeyModifiers::SHIFT) {
// special case for Shift-Tab -> BackTab
let mut modifiers = modifiers;
modifiers.remove(KeyModifiers::SHIFT);
crossterm::event::KeyEvent {
code: crossterm::event::KeyCode::BackTab,
modifiers: modifiers.into(),
}
} else {
crossterm::event::KeyEvent {
code: code.into(),
modifiers: modifiers.into(),
}
}
}
}

100
helix-view/src/input.rs
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@ -2,7 +2,6 @@
use anyhow::{anyhow, Error};
use helix_core::unicode::width::UnicodeWidthStr;
use serde::de::{self, Deserialize, Deserializer};
use std::fmt;
pub use crate::keyboard::{KeyCode, KeyModifiers};
@ -94,8 +93,8 @@ pub(crate) mod keys {
pub(crate) const PERCENT: &str = "percent";
}
impl fmt::Display for KeyEvent {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> std::fmt::Result {
impl std::fmt::Display for KeyEvent {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
f.write_fmt(format_args!(
"{}{}{}",
if self.modifiers.contains(KeyModifiers::SHIFT) {
@ -259,101 +258,6 @@ fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
}
}
#[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 {
if code == crossterm::event::KeyCode::BackTab {
// special case for BackTab -> Shift-Tab
let mut modifiers: KeyModifiers = modifiers.into();
modifiers.insert(KeyModifiers::SHIFT);
Self {
code: KeyCode::Tab,
modifiers,
}
} else {
Self {
code: code.into(),
modifiers: modifiers.into(),
}
}
}
}
#[cfg(feature = "term")]
impl From<KeyEvent> for crossterm::event::KeyEvent {
fn from(KeyEvent { code, modifiers }: KeyEvent) -> Self {
if code == KeyCode::Tab && modifiers.contains(KeyModifiers::SHIFT) {
// special case for Shift-Tab -> BackTab
let mut modifiers = modifiers;
modifiers.remove(KeyModifiers::SHIFT);
crossterm::event::KeyEvent {
code: crossterm::event::KeyCode::BackTab,
modifiers: modifiers.into(),
}
} else {
crossterm::event::KeyEvent {
code: code.into(),
modifiers: modifiers.into(),
}
}
}
}
pub fn parse_macro(keys_str: &str) -> anyhow::Result<Vec<KeyEvent>> {
use anyhow::Context;
let mut keys_res: anyhow::Result<_> = Ok(Vec::new());

4
helix-view/src/lib.rs
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@ -1,6 +1,10 @@
#[macro_use]
pub mod macros;
pub mod backend {
#[cfg(feature = "term")]
pub mod term;
}
pub mod clipboard;
pub mod document;
pub mod editor;