Add a mode indicator for vim (#2763)

Release Notes:

- vim: add a mode indicator
([#409](https://github.com/zed-industries/community/issues/409))

Now updated screenshots with @iamnbutler 
<img width="1043" alt="Screenshot 2023-07-25 at 11 11 57"
src="https://github.com/zed-industries/zed/assets/94272/8301479a-8b58-42d8-81a1-bc40e1e0a4df">
<img width="1043" alt="Screenshot 2023-07-25 at 11 12 00"
src="https://github.com/zed-industries/zed/assets/94272/89c3b8bd-9cbc-4fd7-ad10-dac5538ed3a3">
<img width="1043" alt="Screenshot 2023-07-25 at 11 12 12"
src="https://github.com/zed-industries/zed/assets/94272/adc87fe3-a720-4779-853b-df9443407046">
This commit is contained in:
Conrad Irwin 2023-07-25 20:18:23 -06:00 committed by GitHub
commit 39f02c2b72
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9 changed files with 238 additions and 18 deletions

2
Cargo.lock generated
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@ -8533,6 +8533,7 @@ dependencies = [
"indoc",
"itertools",
"language",
"language_selector",
"log",
"nvim-rs",
"parking_lot 0.11.2",
@ -8542,6 +8543,7 @@ dependencies = [
"serde_derive",
"serde_json",
"settings",
"theme",
"tokio",
"util",
"workspace",

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@ -402,6 +402,7 @@ pub struct StatusBar {
pub height: f32,
pub item_spacing: f32,
pub cursor_position: TextStyle,
pub vim_mode_indicator: ContainedText,
pub active_language: Interactive<ContainedText>,
pub auto_update_progress_message: TextStyle,
pub auto_update_done_message: TextStyle,

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@ -32,6 +32,8 @@ language = { path = "../language" }
search = { path = "../search" }
settings = { path = "../settings" }
workspace = { path = "../workspace" }
theme = { path = "../theme" }
language_selector = { path = "../language_selector"}
[dev-dependencies]
indoc.workspace = true
@ -44,3 +46,4 @@ project = { path = "../project", features = ["test-support"] }
util = { path = "../util", features = ["test-support"] }
settings = { path = "../settings" }
workspace = { path = "../workspace", features = ["test-support"] }
theme = { path = "../theme", features = ["test-support"] }

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@ -0,0 +1,58 @@
use gpui::{elements::Label, AnyElement, Element, Entity, View, ViewContext};
use workspace::{item::ItemHandle, StatusItemView};
use crate::state::Mode;
pub struct ModeIndicator {
pub mode: Mode,
}
impl ModeIndicator {
pub fn new(mode: Mode) -> Self {
Self { mode }
}
pub fn set_mode(&mut self, mode: Mode, cx: &mut ViewContext<Self>) {
if mode != self.mode {
self.mode = mode;
cx.notify();
}
}
}
impl Entity for ModeIndicator {
type Event = ();
}
impl View for ModeIndicator {
fn ui_name() -> &'static str {
"ModeIndicatorView"
}
fn render(&mut self, cx: &mut ViewContext<Self>) -> AnyElement<Self> {
let theme = &theme::current(cx).workspace.status_bar;
// we always choose text to be 12 monospace characters
// so that as the mode indicator changes, the rest of the
// UI stays still.
let text = match self.mode {
Mode::Normal => "-- NORMAL --",
Mode::Insert => "-- INSERT --",
Mode::Visual { line: false } => "-- VISUAL --",
Mode::Visual { line: true } => "VISUAL LINE ",
};
Label::new(text, theme.vim_mode_indicator.text.clone())
.contained()
.with_style(theme.vim_mode_indicator.container)
.into_any()
}
}
impl StatusItemView for ModeIndicator {
fn set_active_pane_item(
&mut self,
_active_pane_item: Option<&dyn ItemHandle>,
_cx: &mut ViewContext<Self>,
) {
// nothing to do.
}
}

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@ -4,6 +4,8 @@ mod neovim_connection;
mod vim_binding_test_context;
mod vim_test_context;
use std::sync::Arc;
use command_palette::CommandPalette;
use editor::DisplayPoint;
pub use neovim_backed_binding_test_context::*;
@ -14,7 +16,7 @@ pub use vim_test_context::*;
use indoc::indoc;
use search::BufferSearchBar;
use crate::state::Mode;
use crate::{state::Mode, ModeIndicator};
#[gpui::test]
async fn test_initially_disabled(cx: &mut gpui::TestAppContext) {
@ -195,3 +197,57 @@ async fn test_selection_on_search(cx: &mut gpui::TestAppContext) {
cx.simulate_keystrokes(["shift-n"]);
cx.assert_state(indoc! {"aa\nbb\nˇcc\ncc\ncc\n"}, Mode::Normal);
}
#[gpui::test]
async fn test_status_indicator(
cx: &mut gpui::TestAppContext,
deterministic: Arc<gpui::executor::Deterministic>,
) {
let mut cx = VimTestContext::new(cx, true).await;
deterministic.run_until_parked();
let mode_indicator = cx.workspace(|workspace, cx| {
let status_bar = workspace.status_bar().read(cx);
let mode_indicator = status_bar.item_of_type::<ModeIndicator>();
assert!(mode_indicator.is_some());
mode_indicator.unwrap()
});
assert_eq!(
cx.workspace(|_, cx| mode_indicator.read(cx).mode),
Mode::Normal
);
// shows the correct mode
cx.simulate_keystrokes(["i"]);
deterministic.run_until_parked();
assert_eq!(
cx.workspace(|_, cx| mode_indicator.read(cx).mode),
Mode::Insert
);
// shows even in search
cx.simulate_keystrokes(["escape", "v", "/"]);
deterministic.run_until_parked();
assert_eq!(
cx.workspace(|_, cx| mode_indicator.read(cx).mode),
Mode::Visual { line: false }
);
// hides if vim mode is disabled
cx.disable_vim();
deterministic.run_until_parked();
cx.workspace(|workspace, cx| {
let status_bar = workspace.status_bar().read(cx);
let mode_indicator = status_bar.item_of_type::<ModeIndicator>();
assert!(mode_indicator.is_none());
});
cx.enable_vim();
deterministic.run_until_parked();
cx.workspace(|workspace, cx| {
let status_bar = workspace.status_bar().read(cx);
let mode_indicator = status_bar.item_of_type::<ModeIndicator>();
assert!(mode_indicator.is_some());
});
}

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@ -3,6 +3,7 @@ mod test;
mod editor_events;
mod insert;
mod mode_indicator;
mod motion;
mod normal;
mod object;
@ -18,6 +19,7 @@ use gpui::{
Subscription, ViewContext, ViewHandle, WeakViewHandle, WindowContext,
};
use language::CursorShape;
pub use mode_indicator::ModeIndicator;
use motion::Motion;
use normal::normal_replace;
use serde::Deserialize;
@ -119,6 +121,7 @@ pub fn observe_keystrokes(cx: &mut WindowContext) {
pub struct Vim {
active_editor: Option<WeakViewHandle<Editor>>,
editor_subscription: Option<Subscription>,
mode_indicator: Option<ViewHandle<ModeIndicator>>,
enabled: bool,
state: VimState,
@ -178,6 +181,10 @@ impl Vim {
self.state.mode = mode;
self.state.operator_stack.clear();
if let Some(mode_indicator) = &self.mode_indicator {
mode_indicator.update(cx, |mode_indicator, cx| mode_indicator.set_mode(mode, cx))
}
// Sync editor settings like clip mode
self.sync_vim_settings(cx);
@ -264,6 +271,44 @@ impl Vim {
}
}
fn sync_mode_indicator(cx: &mut WindowContext) {
let Some(workspace) = cx.root_view()
.downcast_ref::<Workspace>()
.map(|workspace| workspace.downgrade()) else {
return;
};
cx.spawn(|mut cx| async move {
workspace.update(&mut cx, |workspace, cx| {
Vim::update(cx, |vim, cx| {
workspace.status_bar().update(cx, |status_bar, cx| {
let current_position = status_bar.position_of_item::<ModeIndicator>();
if vim.enabled && current_position.is_none() {
if vim.mode_indicator.is_none() {
vim.mode_indicator =
Some(cx.add_view(|_| ModeIndicator::new(vim.state.mode)));
};
let mode_indicator = vim.mode_indicator.as_ref().unwrap();
let position = status_bar
.position_of_item::<language_selector::ActiveBufferLanguage>();
if let Some(position) = position {
status_bar.insert_item_after(position, mode_indicator.clone(), cx)
} else {
status_bar.add_left_item(mode_indicator.clone(), cx)
}
} else if !vim.enabled {
if let Some(position) = current_position {
status_bar.remove_item_at(position, cx)
}
}
})
})
})
})
.detach_and_log_err(cx);
}
fn set_enabled(&mut self, enabled: bool, cx: &mut AppContext) {
if self.enabled != enabled {
self.enabled = enabled;
@ -314,6 +359,8 @@ impl Vim {
self.unhook_vim_settings(editor, cx);
}
});
Vim::sync_mode_indicator(cx);
}
fn unhook_vim_settings(&self, editor: &mut Editor, cx: &mut ViewContext<Editor>) {

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@ -27,6 +27,7 @@ trait StatusItemViewHandle {
active_pane_item: Option<&dyn ItemHandle>,
cx: &mut WindowContext,
);
fn ui_name(&self) -> &'static str;
}
pub struct StatusBar {
@ -57,7 +58,6 @@ impl View for StatusBar {
.with_margin_right(theme.item_spacing)
}))
.into_any(),
right: Flex::row()
.with_children(self.right_items.iter().rev().map(|i| {
ChildView::new(i.as_any(), cx)
@ -96,6 +96,56 @@ impl StatusBar {
cx.notify();
}
pub fn item_of_type<T: StatusItemView>(&self) -> Option<ViewHandle<T>> {
self.left_items
.iter()
.chain(self.right_items.iter())
.find_map(|item| item.as_any().clone().downcast())
}
pub fn position_of_item<T>(&self) -> Option<usize>
where
T: StatusItemView,
{
for (index, item) in self.left_items.iter().enumerate() {
if item.as_ref().ui_name() == T::ui_name() {
return Some(index);
}
}
for (index, item) in self.right_items.iter().enumerate() {
if item.as_ref().ui_name() == T::ui_name() {
return Some(index + self.left_items.len());
}
}
return None;
}
pub fn insert_item_after<T>(
&mut self,
position: usize,
item: ViewHandle<T>,
cx: &mut ViewContext<Self>,
) where
T: 'static + StatusItemView,
{
if position < self.left_items.len() {
self.left_items.insert(position + 1, Box::new(item))
} else {
self.right_items
.insert(position + 1 - self.left_items.len(), Box::new(item))
}
cx.notify()
}
pub fn remove_item_at(&mut self, position: usize, cx: &mut ViewContext<Self>) {
if position < self.left_items.len() {
self.left_items.remove(position);
} else {
self.right_items.remove(position - self.left_items.len());
}
cx.notify();
}
pub fn add_right_item<T>(&mut self, item: ViewHandle<T>, cx: &mut ViewContext<Self>)
where
T: 'static + StatusItemView,
@ -133,6 +183,10 @@ impl<T: StatusItemView> StatusItemViewHandle for ViewHandle<T> {
this.set_active_pane_item(active_pane_item, cx)
});
}
fn ui_name(&self) -> &'static str {
T::ui_name()
}
}
impl From<&dyn StatusItemViewHandle> for AnyViewHandle {

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@ -315,6 +315,7 @@ pub fn initialize_workspace(
workspace.status_bar().update(cx, |status_bar, cx| {
status_bar.add_left_item(diagnostic_summary, cx);
status_bar.add_left_item(activity_indicator, cx);
status_bar.add_right_item(feedback_button, cx);
status_bar.add_right_item(copilot, cx);
status_bar.add_right_item(active_buffer_language, cx);

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@ -1,6 +1,8 @@
import { background, border, foreground, text } from "./components"
import { interactive, toggleable } from "../element"
import { useTheme } from "../common"
import { text_button } from "../component/text_button"
export default function status_bar(): any {
const theme = useTheme()
@ -26,20 +28,16 @@ export default function status_bar(): any {
right: 6,
},
border: border(layer, { top: true, overlay: true }),
cursor_position: text(layer, "sans", "variant"),
active_language: interactive({
base: {
padding: { left: 6, right: 6 },
...text(layer, "sans", "variant"),
},
state: {
hovered: {
...text(layer, "sans", "on"),
},
},
cursor_position: text(layer, "sans", "variant", { size: "xs" }),
vim_mode_indicator: {
margin: { left: 6 },
...text(layer, "mono", "variant", { size: "xs" }),
},
active_language: text_button({
color: "variant"
}),
auto_update_progress_message: text(layer, "sans", "variant"),
auto_update_done_message: text(layer, "sans", "variant"),
auto_update_progress_message: text(layer, "sans", "variant", { size: "xs" }),
auto_update_done_message: text(layer, "sans", "variant", { size: "xs" }),
lsp_status: interactive({
base: {
...diagnostic_status_container,
@ -59,9 +57,9 @@ export default function status_bar(): any {
}),
diagnostic_message: interactive({
base: {
...text(layer, "sans"),
...text(layer, "sans", { size: "xs" }),
},
state: { hovered: text(layer, "sans", "hovered") },
state: { hovered: text(layer, "sans", "hovered", { size: "xs" }) },
}),
diagnostic_summary: interactive({
base: {
@ -117,7 +115,7 @@ export default function status_bar(): any {
icon_color: foreground(layer, "variant"),
label: {
margin: { left: 6 },
...text(layer, "sans", { size: "sm" }),
...text(layer, "sans", { size: "xs" }),
},
},
state: {