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cb13a19d8aefb0d34bc7cd1ee0f321e39d28ca91
zed/crates/editor/src/split.rs
T
Cole MillercameronAnthony EidZed Zippy
 6b8eb8fe07 git: Side-by-side diff UI (#47349) 
This PR implements a UI for the side-by-side diff, using blocks to align
the two sides and adding a coherent `SplitEditorElement`.

Release Notes:

- N/A

---------

Co-authored-by: cameron <cameron.studdstreet@gmail.com>
Co-authored-by: Anthony Eid <hello@anthonyeid.me>
Co-authored-by: Zed Zippy <234243425+zed-zippy[bot]@users.noreply.github.com>
2026-01-22 02:31:14 -05:00

3356 lines
100 KiB
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use std::ops::{Bound, Range};
use buffer_diff::{BufferDiff, BufferDiffSnapshot};
use collections::HashMap;
use feature_flags::{FeatureFlag, FeatureFlagAppExt as _};
use gpui::{
Action, AppContext as _, Entity, EventEmitter, Focusable, NoAction, Subscription, WeakEntity,
};
use language::{Buffer, Capability};
use multi_buffer::{
Anchor, BufferOffset, ExcerptId, ExcerptRange, ExpandExcerptDirection, MultiBuffer,
MultiBufferPoint, MultiBufferSnapshot, PathKey,
};
use project::Project;
use rope::Point;
use text::{OffsetRangeExt as _, ToPoint as _};
use ui::{
App, Context, InteractiveElement as _, IntoElement as _, ParentElement as _, Render,
Styled as _, Window, div,
};
use crate::{
display_map::MultiBufferRowMapping,
split_editor_view::{SplitEditorState, SplitEditorView},
};
use workspace::{
ActivatePaneLeft, ActivatePaneRight, Item, ItemHandle, Pane, PaneGroup, SplitDirection,
Workspace,
};
use crate::{
Autoscroll, DisplayMap, Editor, EditorEvent, ToggleCodeActions, ToggleSoftWrap,
actions::{DisableBreakpoint, EditLogBreakpoint, EnableBreakpoint, ToggleBreakpoint},
display_map::Companion,
};
use zed_actions::assistant::InlineAssist;
pub(crate) fn convert_lhs_rows_to_rhs(
lhs_excerpt_to_rhs_excerpt: &HashMap<ExcerptId, ExcerptId>,
rhs_snapshot: &MultiBufferSnapshot,
lhs_snapshot: &MultiBufferSnapshot,
lhs_bounds: (Bound<MultiBufferPoint>, Bound<MultiBufferPoint>),
) -> Vec<MultiBufferRowMapping> {
convert_rows(
lhs_excerpt_to_rhs_excerpt,
lhs_snapshot,
rhs_snapshot,
lhs_bounds,
|diff, points, buffer| {
let (points, first_group, prev_boundary) =
diff.base_text_points_to_points(points, buffer);
(points.collect(), first_group, prev_boundary)
},
)
}
pub(crate) fn convert_rhs_rows_to_lhs(
rhs_excerpt_to_lhs_excerpt: &HashMap<ExcerptId, ExcerptId>,
lhs_snapshot: &MultiBufferSnapshot,
rhs_snapshot: &MultiBufferSnapshot,
rhs_bounds: (Bound<MultiBufferPoint>, Bound<MultiBufferPoint>),
) -> Vec<MultiBufferRowMapping> {
convert_rows(
rhs_excerpt_to_lhs_excerpt,
rhs_snapshot,
lhs_snapshot,
rhs_bounds,
|diff, points, buffer| {
let (points, first_group, prev_boundary) =
diff.points_to_base_text_points(points, buffer);
(points.collect(), first_group, prev_boundary)
},
)
}
fn convert_rows<F>(
excerpt_map: &HashMap<ExcerptId, ExcerptId>,
source_snapshot: &MultiBufferSnapshot,
target_snapshot: &MultiBufferSnapshot,
source_bounds: (Bound<MultiBufferPoint>, Bound<MultiBufferPoint>),
translate_fn: F,
) -> Vec<MultiBufferRowMapping>
where
F: Fn(
&BufferDiffSnapshot,
Vec<Point>,
&text::BufferSnapshot,
) -> (
Vec<Range<Point>>,
Option<Range<Point>>,
Option<(Point, Range<Point>)>,
),
{
let mut result = Vec::new();
for (buffer, buffer_offset_range, source_excerpt_id) in
source_snapshot.range_to_buffer_ranges(source_bounds)
{
if let Some(translation) = convert_excerpt_rows(
excerpt_map,
source_snapshot,
target_snapshot,
source_excerpt_id,
buffer,
buffer_offset_range,
&translate_fn,
) {
result.push(translation);
}
}
result
}
fn convert_excerpt_rows<F>(
excerpt_map: &HashMap<ExcerptId, ExcerptId>,
source_snapshot: &MultiBufferSnapshot,
target_snapshot: &MultiBufferSnapshot,
source_excerpt_id: ExcerptId,
source_buffer: &text::BufferSnapshot,
source_buffer_range: Range<BufferOffset>,
translate_fn: F,
) -> Option<MultiBufferRowMapping>
where
F: Fn(
&BufferDiffSnapshot,
Vec<Point>,
&text::BufferSnapshot,
) -> (
Vec<Range<Point>>,
Option<Range<Point>>,
Option<(Point, Range<Point>)>,
),
{
let target_excerpt_id = excerpt_map.get(&source_excerpt_id).copied()?;
let target_buffer = target_snapshot.buffer_for_excerpt(target_excerpt_id)?;
let diff = source_snapshot.diff_for_buffer_id(source_buffer.remote_id())?;
let rhs_buffer = if source_buffer.remote_id() == diff.base_text().remote_id() {
&target_buffer
} else {
source_buffer
};
let local_start = source_buffer.offset_to_point(source_buffer_range.start.0);
let local_end = source_buffer.offset_to_point(source_buffer_range.end.0);
let mut input_points: Vec<Point> = (local_start.row..=local_end.row)
.map(|row| Point::new(row, 0))
.collect();
if local_end.column > 0 {
input_points.push(local_end);
}
let (translated_ranges, first_group, prev_boundary) =
translate_fn(&diff, input_points.clone(), rhs_buffer);
let source_multibuffer_range = source_snapshot.range_for_excerpt(source_excerpt_id)?;
let source_excerpt_start_in_multibuffer = source_multibuffer_range.start;
let source_context_range = source_snapshot.context_range_for_excerpt(source_excerpt_id)?;
let source_excerpt_start_in_buffer = source_context_range.start.to_point(&source_buffer);
let source_excerpt_end_in_buffer = source_context_range.end.to_point(&source_buffer);
let target_multibuffer_range = target_snapshot.range_for_excerpt(target_excerpt_id)?;
let target_excerpt_start_in_multibuffer = target_multibuffer_range.start;
let target_context_range = target_snapshot.context_range_for_excerpt(target_excerpt_id)?;
let target_excerpt_start_in_buffer = target_context_range.start.to_point(&target_buffer);
let target_excerpt_end_in_buffer = target_context_range.end.to_point(&target_buffer);
let boundaries: Vec<_> = input_points
.into_iter()
.zip(translated_ranges)
.map(|(source_buffer_point, target_range)| {
let source_multibuffer_point = source_excerpt_start_in_multibuffer
+ (source_buffer_point - source_excerpt_start_in_buffer.min(source_buffer_point));
let clamped_target_start = target_range
.start
.max(target_excerpt_start_in_buffer)
.min(target_excerpt_end_in_buffer);
let clamped_target_end = target_range
.end
.max(target_excerpt_start_in_buffer)
.min(target_excerpt_end_in_buffer);
let target_multibuffer_start = target_excerpt_start_in_multibuffer
+ (clamped_target_start - target_excerpt_start_in_buffer);
let target_multibuffer_end = target_excerpt_start_in_multibuffer
+ (clamped_target_end - target_excerpt_start_in_buffer);
(
source_multibuffer_point,
target_multibuffer_start..target_multibuffer_end,
)
})
.collect();
let first_group = first_group.map(|first_group| {
let start = source_excerpt_start_in_multibuffer
+ (first_group.start - source_excerpt_start_in_buffer.min(first_group.start));
let end = source_excerpt_start_in_multibuffer
+ (first_group.end - source_excerpt_start_in_buffer.min(first_group.end));
start..end
});
let prev_boundary = prev_boundary.map(|(source_buffer_point, target_range)| {
let source_multibuffer_point = source_excerpt_start_in_multibuffer
+ (source_buffer_point - source_excerpt_start_in_buffer.min(source_buffer_point));
let clamped_target_start = target_range
.start
.max(target_excerpt_start_in_buffer)
.min(target_excerpt_end_in_buffer);
let clamped_target_end = target_range
.end
.max(target_excerpt_start_in_buffer)
.min(target_excerpt_end_in_buffer);
let target_multibuffer_start = target_excerpt_start_in_multibuffer
+ (clamped_target_start - target_excerpt_start_in_buffer);
let target_multibuffer_end = target_excerpt_start_in_multibuffer
+ (clamped_target_end - target_excerpt_start_in_buffer);
(
source_multibuffer_point,
target_multibuffer_start..target_multibuffer_end,
)
});
Some(MultiBufferRowMapping {
boundaries,
first_group,
prev_boundary,
source_excerpt_end: source_excerpt_start_in_multibuffer
+ (source_excerpt_end_in_buffer - source_excerpt_start_in_buffer),
target_excerpt_end: target_excerpt_start_in_multibuffer
+ (target_excerpt_end_in_buffer - target_excerpt_start_in_buffer),
})
}
struct SplitDiffFeatureFlag;
impl FeatureFlag for SplitDiffFeatureFlag {
const NAME: &'static str = "split-diff";
fn enabled_for_staff() -> bool {
true
}
}
#[derive(Clone, Copy, PartialEq, Eq, Action, Default)]
#[action(namespace = editor)]
struct SplitDiff;
#[derive(Clone, Copy, PartialEq, Eq, Action, Default)]
#[action(namespace = editor)]
struct UnsplitDiff;
#[derive(Clone, Copy, PartialEq, Eq, Action, Default)]
#[action(namespace = editor)]
pub struct ToggleSplitDiff;
#[derive(Clone, Copy, PartialEq, Eq, Action, Default)]
#[action(namespace = editor)]
struct JumpToCorrespondingRow;
/// When locked cursors mode is enabled, cursor movements in one editor will
/// update the cursor position in the other editor to the corresponding row.
#[derive(Clone, Copy, PartialEq, Eq, Action, Default)]
#[action(namespace = editor)]
pub struct ToggleLockedCursors;
pub struct SplittableEditor {
primary_multibuffer: Entity<MultiBuffer>,
primary_editor: Entity<Editor>,
secondary: Option<SecondaryEditor>,
panes: PaneGroup,
workspace: WeakEntity<Workspace>,
split_state: Entity<SplitEditorState>,
locked_cursors: bool,
_subscriptions: Vec<Subscription>,
}
struct SecondaryEditor {
multibuffer: Entity<MultiBuffer>,
editor: Entity<Editor>,
pane: Entity<Pane>,
has_latest_selection: bool,
_subscriptions: Vec<Subscription>,
}
impl SplittableEditor {
pub fn primary_editor(&self) -> &Entity<Editor> {
&self.primary_editor
}
pub fn secondary_editor(&self) -> Option<&Entity<Editor>> {
self.secondary.as_ref().map(|s| &s.editor)
}
pub fn is_split(&self) -> bool {
self.secondary.is_some()
}
pub fn last_selected_editor(&self) -> &Entity<Editor> {
if let Some(secondary) = &self.secondary
&& secondary.has_latest_selection
{
&secondary.editor
} else {
&self.primary_editor
}
}
pub fn new_unsplit(
primary_multibuffer: Entity<MultiBuffer>,
project: Entity<Project>,
workspace: Entity<Workspace>,
window: &mut Window,
cx: &mut Context<Self>,
) -> Self {
let primary_editor = cx.new(|cx| {
let mut editor = Editor::for_multibuffer(
primary_multibuffer.clone(),
Some(project.clone()),
window,
cx,
);
editor.set_expand_all_diff_hunks(cx);
editor
});
let pane = cx.new(|cx| {
let mut pane = Pane::new(
workspace.downgrade(),
project,
Default::default(),
None,
NoAction.boxed_clone(),
true,
window,
cx,
);
pane.set_should_display_tab_bar(|_, _| false);
pane.add_item(primary_editor.boxed_clone(), true, true, None, window, cx);
pane
});
let panes = PaneGroup::new(pane);
// TODO(split-diff) we might want to tag editor events with whether they came from primary/secondary
let subscriptions = vec![cx.subscribe(
&primary_editor,
|this, _, event: &EditorEvent, cx| match event {
EditorEvent::ExpandExcerptsRequested {
excerpt_ids,
lines,
direction,
} => {
this.expand_excerpts(excerpt_ids.iter().copied(), *lines, *direction, cx);
}
EditorEvent::SelectionsChanged { .. } => {
if let Some(secondary) = &mut this.secondary {
secondary.has_latest_selection = false;
}
cx.emit(event.clone());
}
_ => cx.emit(event.clone()),
},
)];
window.defer(cx, {
let workspace = workspace.downgrade();
let primary_editor = primary_editor.downgrade();
move |window, cx| {
workspace
.update(cx, |workspace, cx| {
primary_editor.update(cx, |editor, cx| {
editor.added_to_workspace(workspace, window, cx);
})
})
.ok();
}
});
let split_state = cx.new(|cx| SplitEditorState::new(cx));
Self {
primary_editor,
primary_multibuffer,
secondary: None,
panes,
workspace: workspace.downgrade(),
split_state,
locked_cursors: false,
_subscriptions: subscriptions,
}
}
fn split(&mut self, _: &SplitDiff, window: &mut Window, cx: &mut Context<Self>) {
if !cx.has_flag::<SplitDiffFeatureFlag>() {
return;
}
if self.secondary.is_some() {
return;
}
let Some(workspace) = self.workspace.upgrade() else {
return;
};
let project = workspace.read(cx).project().clone();
let secondary_multibuffer = cx.new(|cx| {
let mut multibuffer = MultiBuffer::new(Capability::ReadOnly);
multibuffer.set_all_diff_hunks_expanded(cx);
multibuffer
});
let secondary_editor = cx.new(|cx| {
let mut editor = Editor::for_multibuffer(
secondary_multibuffer.clone(),
Some(project.clone()),
window,
cx,
);
editor.number_deleted_lines = true;
editor.set_delegate_expand_excerpts(true);
editor
});
let secondary_pane = cx.new(|cx| {
let mut pane = Pane::new(
workspace.downgrade(),
workspace.read(cx).project().clone(),
Default::default(),
None,
NoAction.boxed_clone(),
true,
window,
cx,
);
pane.set_should_display_tab_bar(|_, _| false);
pane.add_item(
ItemHandle::boxed_clone(&secondary_editor),
false,
false,
None,
window,
cx,
);
pane
});
let subscriptions = vec![cx.subscribe(
&secondary_editor,
|this, _, event: &EditorEvent, cx| match event {
EditorEvent::ExpandExcerptsRequested {
excerpt_ids,
lines,
direction,
} => {
if this.secondary.is_some() {
let primary_display_map = this.primary_editor.read(cx).display_map.read(cx);
let primary_ids: Vec<_> = excerpt_ids
.iter()
.filter_map(|id| {
primary_display_map.companion_excerpt_to_my_excerpt(*id, cx)
})
.collect();
this.expand_excerpts(primary_ids.into_iter(), *lines, *direction, cx);
}
}
EditorEvent::SelectionsChanged { .. } => {
if let Some(secondary) = &mut this.secondary {
secondary.has_latest_selection = true;
}
cx.emit(event.clone());
}
_ => cx.emit(event.clone()),
},
)];
let mut secondary = SecondaryEditor {
editor: secondary_editor,
multibuffer: secondary_multibuffer,
pane: secondary_pane.clone(),
has_latest_selection: false,
_subscriptions: subscriptions,
};
let primary_display_map = self.primary_editor.read(cx).display_map.clone();
let secondary_display_map = secondary.editor.read(cx).display_map.clone();
let rhs_display_map_id = primary_display_map.entity_id();
self.primary_editor.update(cx, |editor, cx| {
editor.set_delegate_expand_excerpts(true);
editor.buffer().update(cx, |primary_multibuffer, cx| {
primary_multibuffer.set_show_deleted_hunks(false, cx);
primary_multibuffer.set_use_extended_diff_range(true, cx);
})
});
let path_diffs: Vec<_> = {
let primary_multibuffer = self.primary_multibuffer.read(cx);
primary_multibuffer
.paths()
.filter_map(|path| {
let excerpt_id = primary_multibuffer.excerpts_for_path(path).next()?;
let snapshot = primary_multibuffer.snapshot(cx);
let buffer = snapshot.buffer_for_excerpt(excerpt_id)?;
let diff = primary_multibuffer.diff_for(buffer.remote_id())?;
Some((path.clone(), diff))
})
.collect()
};
let mut companion = Companion::new(
rhs_display_map_id,
convert_rhs_rows_to_lhs,
convert_lhs_rows_to_rhs,
);
for (path, diff) in path_diffs {
for (lhs, rhs) in secondary.update_path_excerpts_from_primary(
path,
&self.primary_multibuffer,
diff.clone(),
cx,
) {
companion.add_excerpt_mapping(lhs, rhs);
}
companion.add_buffer_mapping(
diff.read(cx).base_text(cx).remote_id(),
diff.read(cx).buffer_id,
);
}
let companion = cx.new(|_| companion);
primary_display_map.update(cx, |dm, cx| {
dm.set_companion(
Some((secondary_display_map.downgrade(), companion.clone())),
cx,
);
});
secondary_display_map.update(cx, |dm, cx| {
dm.set_companion(Some((primary_display_map.downgrade(), companion)), cx);
});
let primary_weak = self.primary_editor.downgrade();
let secondary_weak = secondary.editor.downgrade();
let this = cx.entity().downgrade();
self.primary_editor.update(cx, |editor, _cx| {
editor.set_scroll_companion(Some(secondary_weak));
let this = this.clone();
editor.set_on_local_selections_changed(Some(Box::new(
move |cursor_position, window, cx| {
if let Some(this) = this.upgrade() {
this.update(cx, |this, cx| {
if this.locked_cursors {
this.sync_cursor_to_other_side(true, cursor_position, window, cx);
}
});
}
},
)));
});
secondary.editor.update(cx, |editor, _cx| {
editor.set_scroll_companion(Some(primary_weak));
let this = this.clone();
editor.set_on_local_selections_changed(Some(Box::new(
move |cursor_position, window, cx| {
if let Some(this) = this.upgrade() {
this.update(cx, |this, cx| {
if this.locked_cursors {
this.sync_cursor_to_other_side(false, cursor_position, window, cx);
}
});
}
},
)));
});
let primary_scroll_position = self
.primary_editor
.update(cx, |editor, cx| editor.scroll_position(cx));
secondary.editor.update(cx, |editor, cx| {
editor.set_scroll_position_internal(primary_scroll_position, false, false, window, cx);
});
// Copy soft wrap state from primary (source of truth) to secondary
let primary_soft_wrap_override = self.primary_editor.read(cx).soft_wrap_mode_override;
secondary.editor.update(cx, |editor, cx| {
editor.soft_wrap_mode_override = primary_soft_wrap_override;
cx.notify();
});
self.secondary = Some(secondary);
let primary_pane = self.panes.first_pane();
self.panes
.split(&primary_pane, &secondary_pane, SplitDirection::Left, cx)
.unwrap();
cx.notify();
}
fn activate_pane_left(
&mut self,
_: &ActivatePaneLeft,
window: &mut Window,
cx: &mut Context<Self>,
) {
if let Some(secondary) = &mut self.secondary {
if !secondary.has_latest_selection {
secondary.editor.read(cx).focus_handle(cx).focus(window, cx);
secondary.editor.update(cx, |editor, cx| {
editor.request_autoscroll(Autoscroll::fit(), cx);
});
secondary.has_latest_selection = true;
cx.notify();
} else {
cx.propagate();
}
} else {
cx.propagate();
}
}
fn activate_pane_right(
&mut self,
_: &ActivatePaneRight,
window: &mut Window,
cx: &mut Context<Self>,
) {
if let Some(secondary) = &mut self.secondary {
if secondary.has_latest_selection {
self.primary_editor
.read(cx)
.focus_handle(cx)
.focus(window, cx);
self.primary_editor.update(cx, |editor, cx| {
editor.request_autoscroll(Autoscroll::fit(), cx);
});
secondary.has_latest_selection = false;
cx.notify();
} else {
cx.propagate();
}
} else {
cx.propagate();
}
}
fn toggle_locked_cursors(
&mut self,
_: &ToggleLockedCursors,
_window: &mut Window,
cx: &mut Context<Self>,
) {
self.locked_cursors = !self.locked_cursors;
cx.notify();
}
pub fn locked_cursors(&self) -> bool {
self.locked_cursors
}
fn sync_cursor_to_other_side(
&mut self,
from_primary: bool,
source_point: Point,
window: &mut Window,
cx: &mut Context<Self>,
) {
let Some(secondary) = &self.secondary else {
return;
};
let target_editor = if from_primary {
&secondary.editor
} else {
&self.primary_editor
};
let (source_multibuffer, target_multibuffer) = if from_primary {
(&self.primary_multibuffer, &secondary.multibuffer)
} else {
(&secondary.multibuffer, &self.primary_multibuffer)
};
let source_snapshot = source_multibuffer.read(cx).snapshot(cx);
let target_snapshot = target_multibuffer.read(cx).snapshot(cx);
let target_point = target_editor.update(cx, |target_editor, cx| {
target_editor.display_map.update(cx, |display_map, cx| {
let display_map_id = cx.entity_id();
display_map.companion().unwrap().update(cx, |companion, _| {
companion
.convert_rows_from_companion(
display_map_id,
&target_snapshot,
&source_snapshot,
(Bound::Included(source_point), Bound::Included(source_point)),
)
.first()
.unwrap()
.boundaries
.first()
.unwrap()
.1
.start
})
})
});
target_editor.update(cx, |editor, cx| {
editor.set_suppress_selection_callback(true);
editor.change_selections(crate::SelectionEffects::no_scroll(), window, cx, |s| {
s.select_ranges([target_point..target_point]);
});
editor.set_suppress_selection_callback(false);
});
}
fn toggle_split(&mut self, _: &ToggleSplitDiff, window: &mut Window, cx: &mut Context<Self>) {
if self.secondary.is_some() {
self.unsplit(&UnsplitDiff, window, cx);
} else {
self.split(&SplitDiff, window, cx);
}
}
fn intercept_toggle_code_actions(
&mut self,
_: &ToggleCodeActions,
_window: &mut Window,
cx: &mut Context<Self>,
) {
if self.secondary.is_some() {
cx.stop_propagation();
} else {
cx.propagate();
}
}
fn intercept_toggle_breakpoint(
&mut self,
_: &ToggleBreakpoint,
_window: &mut Window,
cx: &mut Context<Self>,
) {
// Only block breakpoint actions when the left (secondary) editor has focus
if let Some(secondary) = &self.secondary {
if secondary.has_latest_selection {
cx.stop_propagation();
} else {
cx.propagate();
}
} else {
cx.propagate();
}
}
fn intercept_enable_breakpoint(
&mut self,
_: &EnableBreakpoint,
_window: &mut Window,
cx: &mut Context<Self>,
) {
// Only block breakpoint actions when the left (secondary) editor has focus
if let Some(secondary) = &self.secondary {
if secondary.has_latest_selection {
cx.stop_propagation();
} else {
cx.propagate();
}
} else {
cx.propagate();
}
}
fn intercept_disable_breakpoint(
&mut self,
_: &DisableBreakpoint,
_window: &mut Window,
cx: &mut Context<Self>,
) {
// Only block breakpoint actions when the left (secondary) editor has focus
if let Some(secondary) = &self.secondary {
if secondary.has_latest_selection {
cx.stop_propagation();
} else {
cx.propagate();
}
} else {
cx.propagate();
}
}
fn intercept_edit_log_breakpoint(
&mut self,
_: &EditLogBreakpoint,
_window: &mut Window,
cx: &mut Context<Self>,
) {
// Only block breakpoint actions when the left (secondary) editor has focus
if let Some(secondary) = &self.secondary {
if secondary.has_latest_selection {
cx.stop_propagation();
} else {
cx.propagate();
}
} else {
cx.propagate();
}
}
fn intercept_inline_assist(
&mut self,
_: &InlineAssist,
_window: &mut Window,
cx: &mut Context<Self>,
) {
if self.secondary.is_some() {
cx.stop_propagation();
} else {
cx.propagate();
}
}
fn toggle_soft_wrap(
&mut self,
_: &ToggleSoftWrap,
window: &mut Window,
cx: &mut Context<Self>,
) {
if let Some(secondary) = &self.secondary {
cx.stop_propagation();
let is_secondary_focused = secondary.has_latest_selection;
let (focused_editor, other_editor) = if is_secondary_focused {
(&secondary.editor, &self.primary_editor)
} else {
(&self.primary_editor, &secondary.editor)
};
// Toggle the focused editor
focused_editor.update(cx, |editor, cx| {
editor.toggle_soft_wrap(&ToggleSoftWrap, window, cx);
});
// Copy the soft wrap state from the focused editor to the other editor
let soft_wrap_override = focused_editor.read(cx).soft_wrap_mode_override;
other_editor.update(cx, |editor, cx| {
editor.soft_wrap_mode_override = soft_wrap_override;
cx.notify();
});
} else {
cx.propagate();
}
}
fn unsplit(&mut self, _: &UnsplitDiff, _: &mut Window, cx: &mut Context<Self>) {
let Some(secondary) = self.secondary.take() else {
return;
};
self.panes.remove(&secondary.pane, cx).unwrap();
self.primary_editor.update(cx, |primary, cx| {
primary.set_on_local_selections_changed(None);
primary.set_scroll_companion(None);
primary.set_delegate_expand_excerpts(false);
primary.buffer().update(cx, |buffer, cx| {
buffer.set_show_deleted_hunks(true, cx);
buffer.set_use_extended_diff_range(false, cx);
});
primary.display_map.update(cx, |dm, cx| {
dm.set_companion(None, cx);
});
});
secondary.editor.update(cx, |editor, _cx| {
editor.set_on_local_selections_changed(None);
editor.set_scroll_companion(None);
});
cx.notify();
}
pub fn added_to_workspace(
&mut self,
workspace: &mut Workspace,
window: &mut Window,
cx: &mut Context<Self>,
) {
self.workspace = workspace.weak_handle();
self.primary_editor.update(cx, |primary_editor, cx| {
primary_editor.added_to_workspace(workspace, window, cx);
});
if let Some(secondary) = &self.secondary {
secondary.editor.update(cx, |secondary_editor, cx| {
secondary_editor.added_to_workspace(workspace, window, cx);
});
}
}
pub fn set_excerpts_for_path(
&mut self,
path: PathKey,
buffer: Entity<Buffer>,
ranges: impl IntoIterator<Item = Range<Point>> + Clone,
context_line_count: u32,
diff: Entity<BufferDiff>,
cx: &mut Context<Self>,
) -> (Vec<Range<Anchor>>, bool) {
let primary_display_map = self.primary_editor.read(cx).display_map.clone();
let secondary_display_map = self
.secondary
.as_ref()
.map(|s| s.editor.read(cx).display_map.clone());
let (anchors, added_a_new_excerpt) =
self.primary_multibuffer
.update(cx, |primary_multibuffer, cx| {
let (anchors, added_a_new_excerpt) = primary_multibuffer.set_excerpts_for_path(
path.clone(),
buffer.clone(),
ranges,
context_line_count,
cx,
);
if !anchors.is_empty()
&& primary_multibuffer
.diff_for(buffer.read(cx).remote_id())
.is_none_or(|old_diff| old_diff.entity_id() != diff.entity_id())
{
primary_multibuffer.add_diff(diff.clone(), cx);
}
(anchors, added_a_new_excerpt)
});
if let Some(secondary) = &mut self.secondary {
if let Some(secondary_display_map) = &secondary_display_map {
secondary.sync_path_excerpts(
path,
&self.primary_multibuffer,
diff,
&primary_display_map,
secondary_display_map,
cx,
);
}
}
(anchors, added_a_new_excerpt)
}
fn expand_excerpts(
&mut self,
excerpt_ids: impl Iterator<Item = ExcerptId> + Clone,
lines: u32,
direction: ExpandExcerptDirection,
cx: &mut Context<Self>,
) {
let mut corresponding_paths = HashMap::default();
self.primary_multibuffer.update(cx, |multibuffer, cx| {
let snapshot = multibuffer.snapshot(cx);
if self.secondary.is_some() {
corresponding_paths = excerpt_ids
.clone()
.map(|excerpt_id| {
let path = multibuffer.path_for_excerpt(excerpt_id).unwrap();
let buffer = snapshot.buffer_for_excerpt(excerpt_id).unwrap();
let diff = multibuffer.diff_for(buffer.remote_id()).unwrap();
(path, diff)
})
.collect::<HashMap<_, _>>();
}
multibuffer.expand_excerpts(excerpt_ids.clone(), lines, direction, cx);
});
if let Some(secondary) = &mut self.secondary {
let primary_display_map = self.primary_editor.read(cx).display_map.clone();
let secondary_display_map = secondary.editor.read(cx).display_map.clone();
for (path, diff) in corresponding_paths {
secondary.sync_path_excerpts(
path,
&self.primary_multibuffer,
diff,
&primary_display_map,
&secondary_display_map,
cx,
);
}
}
}
pub fn remove_excerpts_for_path(&mut self, path: PathKey, cx: &mut Context<Self>) {
self.primary_multibuffer.update(cx, |buffer, cx| {
buffer.remove_excerpts_for_path(path.clone(), cx)
});
if let Some(secondary) = &self.secondary {
let primary_display_map = self.primary_editor.read(cx).display_map.clone();
let secondary_display_map = secondary.editor.read(cx).display_map.clone();
secondary.remove_mappings_for_path(
&path,
&self.primary_multibuffer,
&primary_display_map,
&secondary_display_map,
cx,
);
secondary
.multibuffer
.update(cx, |buffer, cx| buffer.remove_excerpts_for_path(path, cx))
}
}
}
#[cfg(test)]
impl SplittableEditor {
fn check_invariants(&self, quiesced: bool, cx: &mut App) {
use multi_buffer::MultiBufferRow;
use text::Bias;
use crate::display_map::Block;
use crate::display_map::DisplayRow;
self.debug_print(cx);
let secondary = self.secondary.as_ref().unwrap();
let primary_excerpts = self.primary_multibuffer.read(cx).excerpt_ids();
let secondary_excerpts = secondary.multibuffer.read(cx).excerpt_ids();
assert_eq!(
secondary_excerpts.len(),
primary_excerpts.len(),
"mismatch in excerpt count"
);
if quiesced {
let rhs_snapshot = secondary
.editor
.update(cx, |editor, cx| editor.display_snapshot(cx));
let lhs_snapshot = self
.primary_editor
.update(cx, |editor, cx| editor.display_snapshot(cx));
let lhs_max_row = lhs_snapshot.max_point().row();
let rhs_max_row = rhs_snapshot.max_point().row();
assert_eq!(lhs_max_row, rhs_max_row, "mismatch in display row count");
let lhs_excerpt_block_rows = lhs_snapshot
.blocks_in_range(DisplayRow(0)..lhs_max_row + 1)
.filter(|(_, block)| {
matches!(
block,
Block::BufferHeader { .. } | Block::ExcerptBoundary { .. }
)
})
.map(|(row, _)| row)
.collect::<Vec<_>>();
let rhs_excerpt_block_rows = rhs_snapshot
.blocks_in_range(DisplayRow(0)..rhs_max_row + 1)
.filter(|(_, block)| {
matches!(
block,
Block::BufferHeader { .. } | Block::ExcerptBoundary { .. }
)
})
.map(|(row, _)| row)
.collect::<Vec<_>>();
assert_eq!(lhs_excerpt_block_rows, rhs_excerpt_block_rows);
for (lhs_hunk, rhs_hunk) in lhs_snapshot.diff_hunks().zip(rhs_snapshot.diff_hunks()) {
assert_eq!(
lhs_hunk.diff_base_byte_range, rhs_hunk.diff_base_byte_range,
"mismatch in hunks"
);
assert_eq!(
lhs_hunk.status, rhs_hunk.status,
"mismatch in hunk statuses"
);
let (lhs_point, rhs_point) =
if lhs_hunk.row_range.is_empty() || rhs_hunk.row_range.is_empty() {
(
Point::new(lhs_hunk.row_range.end.0, 0),
Point::new(rhs_hunk.row_range.end.0, 0),
)
} else {
(
Point::new(lhs_hunk.row_range.start.0, 0),
Point::new(rhs_hunk.row_range.start.0, 0),
)
};
let lhs_point = lhs_snapshot.point_to_display_point(lhs_point, Bias::Left);
let rhs_point = rhs_snapshot.point_to_display_point(rhs_point, Bias::Left);
assert_eq!(
lhs_point.row(),
rhs_point.row(),
"mismatch in hunk position"
);
}
// Filtering out empty lines is a bit of a hack, to work around a case where
// the base text has a trailing newline but the current text doesn't, or vice versa.
// In this case, we get the additional newline on one side, but that line is not
// marked as added/deleted by rowinfos.
self.check_sides_match(cx, |snapshot| {
snapshot
.buffer_snapshot()
.text()
.split("\n")
.zip(snapshot.buffer_snapshot().row_infos(MultiBufferRow(0)))
.filter(|(line, row_info)| !line.is_empty() && row_info.diff_status.is_none())
.map(|(line, _)| line.to_owned())
.collect::<Vec<_>>()
});
}
}
#[track_caller]
fn check_sides_match<T: std::fmt::Debug + PartialEq>(
&self,
cx: &mut App,
mut extract: impl FnMut(&crate::DisplaySnapshot) -> T,
) {
let secondary = self.secondary.as_ref().expect("requires split");
let primary_snapshot = self.primary_editor.update(cx, |editor, cx| {
editor.display_map.update(cx, |map, cx| map.snapshot(cx))
});
let secondary_snapshot = secondary.editor.update(cx, |editor, cx| {
editor.display_map.update(cx, |map, cx| map.snapshot(cx))
});
let primary_t = extract(&primary_snapshot);
let secondary_t = extract(&secondary_snapshot);
if primary_t != secondary_t {
self.debug_print(cx);
pretty_assertions::assert_eq!(primary_t, secondary_t);
}
}
fn debug_print(&self, cx: &mut App) {
use crate::DisplayRow;
use crate::display_map::Block;
use buffer_diff::DiffHunkStatusKind;
assert!(
self.secondary.is_some(),
"debug_print is only useful when secondary editor exists"
);
let secondary = self.secondary.as_ref().unwrap();
// Get terminal width, default to 80 if unavailable
let terminal_width = std::env::var("COLUMNS")
.ok()
.and_then(|s| s.parse::<usize>().ok())
.unwrap_or(80);
// Each side gets half the terminal width minus the separator
let separator = " │ ";
let side_width = (terminal_width - separator.len()) / 2;
// Get display snapshots for both editors
let secondary_snapshot = secondary.editor.update(cx, |editor, cx| {
editor.display_map.update(cx, |map, cx| map.snapshot(cx))
});
let primary_snapshot = self.primary_editor.update(cx, |editor, cx| {
editor.display_map.update(cx, |map, cx| map.snapshot(cx))
});
let secondary_max_row = secondary_snapshot.max_point().row().0;
let primary_max_row = primary_snapshot.max_point().row().0;
let max_row = secondary_max_row.max(primary_max_row);
// Build a map from display row -> block type string
// Each row of a multi-row block gets an entry with the same block type
// For spacers, the ID is included in brackets
fn build_block_map(
snapshot: &crate::DisplaySnapshot,
max_row: u32,
) -> std::collections::HashMap<u32, String> {
let mut block_map = std::collections::HashMap::new();
for (start_row, block) in
snapshot.blocks_in_range(DisplayRow(0)..DisplayRow(max_row + 1))
{
let (block_type, height) = match block {
Block::Spacer {
id,
height,
is_below: _,
} => (format!("SPACER[{}]", id.0), *height),
Block::ExcerptBoundary { height, .. } => {
("EXCERPT_BOUNDARY".to_string(), *height)
}
Block::BufferHeader { height, .. } => ("BUFFER_HEADER".to_string(), *height),
Block::FoldedBuffer { height, .. } => ("FOLDED_BUFFER".to_string(), *height),
Block::Custom(custom) => {
("CUSTOM_BLOCK".to_string(), custom.height.unwrap_or(1))
}
};
for offset in 0..height {
block_map.insert(start_row.0 + offset, block_type.clone());
}
}
block_map
}
let secondary_blocks = build_block_map(&secondary_snapshot, secondary_max_row);
let primary_blocks = build_block_map(&primary_snapshot, primary_max_row);
fn display_width(s: &str) -> usize {
unicode_width::UnicodeWidthStr::width(s)
}
fn truncate_line(line: &str, max_width: usize) -> String {
let line_width = display_width(line);
if line_width <= max_width {
return line.to_string();
}
if max_width < 9 {
let mut result = String::new();
let mut width = 0;
for c in line.chars() {
let c_width = unicode_width::UnicodeWidthChar::width(c).unwrap_or(0);
if width + c_width > max_width {
break;
}
result.push(c);
width += c_width;
}
return result;
}
let ellipsis = "...";
let target_prefix_width = 3;
let target_suffix_width = 3;
let mut prefix = String::new();
let mut prefix_width = 0;
for c in line.chars() {
let c_width = unicode_width::UnicodeWidthChar::width(c).unwrap_or(0);
if prefix_width + c_width > target_prefix_width {
break;
}
prefix.push(c);
prefix_width += c_width;
}
let mut suffix_chars: Vec<char> = Vec::new();
let mut suffix_width = 0;
for c in line.chars().rev() {
let c_width = unicode_width::UnicodeWidthChar::width(c).unwrap_or(0);
if suffix_width + c_width > target_suffix_width {
break;
}
suffix_chars.push(c);
suffix_width += c_width;
}
suffix_chars.reverse();
let suffix: String = suffix_chars.into_iter().collect();
format!("{}{}{}", prefix, ellipsis, suffix)
}
fn pad_to_width(s: &str, target_width: usize) -> String {
let current_width = display_width(s);
if current_width >= target_width {
s.to_string()
} else {
format!("{}{}", s, " ".repeat(target_width - current_width))
}
}
// Helper to format a single row for one side
// Format: "ln# diff bytes(cumul) text" or block info
// Line numbers come from buffer_row in RowInfo (1-indexed for display)
fn format_row(
row: u32,
max_row: u32,
snapshot: &crate::DisplaySnapshot,
blocks: &std::collections::HashMap<u32, String>,
row_infos: &[multi_buffer::RowInfo],
cumulative_bytes: &[usize],
side_width: usize,
) -> String {
// Get row info if available
let row_info = row_infos.get(row as usize);
// Line number prefix (3 chars + space)
// Use buffer_row from RowInfo, which is None for block rows
let line_prefix = if row > max_row {
" ".to_string()
} else if let Some(buffer_row) = row_info.and_then(|info| info.buffer_row) {
format!("{:>3} ", buffer_row + 1) // 1-indexed for display
} else {
" ".to_string() // block rows have no line number
};
let content_width = side_width.saturating_sub(line_prefix.len());
if row > max_row {
return format!("{}{}", line_prefix, " ".repeat(content_width));
}
// Check if this row is a block row
if let Some(block_type) = blocks.get(&row) {
let block_str = format!("~~~[{}]~~~", block_type);
let formatted = format!("{:^width$}", block_str, width = content_width);
return format!(
"{}{}",
line_prefix,
truncate_line(&formatted, content_width)
);
}
// Get line text
let line_text = snapshot.line(DisplayRow(row));
let line_bytes = line_text.len();
// Diff status marker
let diff_marker = match row_info.and_then(|info| info.diff_status.as_ref()) {
Some(status) => match status.kind {
DiffHunkStatusKind::Added => "+",
DiffHunkStatusKind::Deleted => "-",
DiffHunkStatusKind::Modified => "~",
},
None => " ",
};
// Cumulative bytes
let cumulative = cumulative_bytes.get(row as usize).copied().unwrap_or(0);
// Format: "diff bytes(cumul) text" - use 3 digits for bytes, 4 for cumulative
let info_prefix = format!("{}{:>3}({:>4}) ", diff_marker, line_bytes, cumulative);
let text_width = content_width.saturating_sub(info_prefix.len());
let truncated_text = truncate_line(&line_text, text_width);
let text_part = pad_to_width(&truncated_text, text_width);
format!("{}{}{}", line_prefix, info_prefix, text_part)
}
// Collect row infos for both sides
let secondary_row_infos: Vec<_> = secondary_snapshot
.row_infos(DisplayRow(0))
.take((secondary_max_row + 1) as usize)
.collect();
let primary_row_infos: Vec<_> = primary_snapshot
.row_infos(DisplayRow(0))
.take((primary_max_row + 1) as usize)
.collect();
// Calculate cumulative bytes for each side (only counting non-block rows)
let mut secondary_cumulative = Vec::with_capacity((secondary_max_row + 1) as usize);
let mut cumulative = 0usize;
for row in 0..=secondary_max_row {
if !secondary_blocks.contains_key(&row) {
cumulative += secondary_snapshot.line(DisplayRow(row)).len() + 1; // +1 for newline
}
secondary_cumulative.push(cumulative);
}
let mut primary_cumulative = Vec::with_capacity((primary_max_row + 1) as usize);
cumulative = 0;
for row in 0..=primary_max_row {
if !primary_blocks.contains_key(&row) {
cumulative += primary_snapshot.line(DisplayRow(row)).len() + 1;
}
primary_cumulative.push(cumulative);
}
// Print header
eprintln!();
eprintln!("{}", "═".repeat(terminal_width));
let header_left = format!("{:^width$}", "SECONDARY (LEFT)", width = side_width);
let header_right = format!("{:^width$}", "PRIMARY (RIGHT)", width = side_width);
eprintln!("{}{}{}", header_left, separator, header_right);
eprintln!(
"{:^width$}{}{:^width$}",
"ln# diff len(cum) text",
separator,
"ln# diff len(cum) text",
width = side_width
);
eprintln!("{}", "─".repeat(terminal_width));
// Print each row
for row in 0..=max_row {
let left = format_row(
row,
secondary_max_row,
&secondary_snapshot,
&secondary_blocks,
&secondary_row_infos,
&secondary_cumulative,
side_width,
);
let right = format_row(
row,
primary_max_row,
&primary_snapshot,
&primary_blocks,
&primary_row_infos,
&primary_cumulative,
side_width,
);
eprintln!("{}{}{}", left, separator, right);
}
eprintln!("{}", "═".repeat(terminal_width));
eprintln!("Legend: + added, - deleted, ~ modified, ~~~ block/spacer row");
eprintln!();
}
fn randomly_edit_excerpts(
&mut self,
rng: &mut impl rand::Rng,
mutation_count: usize,
cx: &mut Context<Self>,
) {
use collections::HashSet;
use rand::prelude::*;
use std::env;
use util::RandomCharIter;
let max_buffers = env::var("MAX_BUFFERS")
.map(|i| i.parse().expect("invalid `MAX_BUFFERS` variable"))
.unwrap_or(4);
for _ in 0..mutation_count {
let paths = self
.primary_multibuffer
.read(cx)
.paths()
.cloned()
.collect::<Vec<_>>();
let excerpt_ids = self.primary_multibuffer.read(cx).excerpt_ids();
if rng.random_bool(0.2) && !excerpt_ids.is_empty() {
let mut excerpts = HashSet::default();
for _ in 0..rng.random_range(0..excerpt_ids.len()) {
excerpts.extend(excerpt_ids.choose(rng).copied());
}
let line_count = rng.random_range(1..5);
log::info!("Expanding excerpts {excerpts:?} by {line_count} lines");
self.expand_excerpts(
excerpts.iter().cloned(),
line_count,
ExpandExcerptDirection::UpAndDown,
cx,
);
continue;
}
if excerpt_ids.is_empty() || (rng.random_bool(0.8) && paths.len() < max_buffers) {
let len = rng.random_range(100..500);
let text = RandomCharIter::new(&mut *rng).take(len).collect::<String>();
let buffer = cx.new(|cx| Buffer::local(text, cx));
log::info!(
"Creating new buffer {} with text: {:?}",
buffer.read(cx).remote_id(),
buffer.read(cx).text()
);
let buffer_snapshot = buffer.read(cx).snapshot();
let diff = cx.new(|cx| BufferDiff::new_unchanged(&buffer_snapshot, cx));
// Create some initial diff hunks.
buffer.update(cx, |buffer, cx| {
buffer.randomly_edit(rng, 1, cx);
});
let buffer_snapshot = buffer.read(cx).text_snapshot();
diff.update(cx, |diff, cx| {
diff.recalculate_diff_sync(&buffer_snapshot, cx);
});
let path = PathKey::for_buffer(&buffer, cx);
let ranges = diff.update(cx, |diff, cx| {
diff.snapshot(cx)
.hunks(&buffer_snapshot)
.map(|hunk| hunk.buffer_range.to_point(&buffer_snapshot))
.collect::<Vec<_>>()
});
self.set_excerpts_for_path(path, buffer, ranges, 2, diff, cx);
} else {
log::info!("removing excerpts");
let remove_count = rng.random_range(1..=paths.len());
let paths_to_remove = paths
.choose_multiple(rng, remove_count)
.cloned()
.collect::<Vec<_>>();
for path in paths_to_remove {
self.remove_excerpts_for_path(path.clone(), cx);
}
}
}
}
}
impl EventEmitter<EditorEvent> for SplittableEditor {}
impl Focusable for SplittableEditor {
fn focus_handle(&self, cx: &App) -> gpui::FocusHandle {
self.primary_editor.read(cx).focus_handle(cx)
}
}
impl Render for SplittableEditor {
fn render(
&mut self,
_window: &mut ui::Window,
cx: &mut ui::Context<Self>,
) -> impl ui::IntoElement {
let inner = if self.secondary.is_some() {
let style = self.primary_editor.read(cx).create_style(cx);
SplitEditorView::new(cx.entity(), style, self.split_state.clone()).into_any_element()
} else {
self.primary_editor.clone().into_any_element()
};
div()
.id("splittable-editor")
.on_action(cx.listener(Self::split))
.on_action(cx.listener(Self::unsplit))
.on_action(cx.listener(Self::toggle_split))
.on_action(cx.listener(Self::activate_pane_left))
.on_action(cx.listener(Self::activate_pane_right))
.on_action(cx.listener(Self::toggle_locked_cursors))
.on_action(cx.listener(Self::intercept_toggle_code_actions))
.on_action(cx.listener(Self::intercept_toggle_breakpoint))
.on_action(cx.listener(Self::intercept_enable_breakpoint))
.on_action(cx.listener(Self::intercept_disable_breakpoint))
.on_action(cx.listener(Self::intercept_edit_log_breakpoint))
.on_action(cx.listener(Self::intercept_inline_assist))
.capture_action(cx.listener(Self::toggle_soft_wrap))
.size_full()
.child(inner)
}
}
impl SecondaryEditor {
fn update_path_excerpts_from_primary(
&mut self,
path_key: PathKey,
primary_multibuffer: &Entity<MultiBuffer>,
diff: Entity<BufferDiff>,
cx: &mut App,
) -> Vec<(ExcerptId, ExcerptId)> {
let primary_multibuffer_ref = primary_multibuffer.read(cx);
let primary_excerpt_ids: Vec<ExcerptId> = primary_multibuffer_ref
.excerpts_for_path(&path_key)
.collect();
let Some(excerpt_id) = primary_multibuffer_ref.excerpts_for_path(&path_key).next() else {
self.multibuffer.update(cx, |multibuffer, cx| {
multibuffer.remove_excerpts_for_path(path_key, cx);
});
return Vec::new();
};
let primary_multibuffer_snapshot = primary_multibuffer_ref.snapshot(cx);
let main_buffer = primary_multibuffer_snapshot
.buffer_for_excerpt(excerpt_id)
.unwrap();
let base_text_buffer = diff.read(cx).base_text_buffer();
let diff_snapshot = diff.read(cx).snapshot(cx);
let base_text_buffer_snapshot = base_text_buffer.read(cx).snapshot();
let new = primary_multibuffer_ref
.excerpts_for_buffer(main_buffer.remote_id(), cx)
.into_iter()
.map(|(_, excerpt_range)| {
let point_range_to_base_text_point_range = |range: Range<Point>| {
let (mut translated, _, _) = diff_snapshot.points_to_base_text_points(
[Point::new(range.start.row, 0), Point::new(range.end.row, 0)],
main_buffer,
);
let start_row = translated.next().unwrap().start.row;
let end_row = translated.next().unwrap().end.row;
let end_column = diff_snapshot.base_text().line_len(end_row);
Point::new(start_row, 0)..Point::new(end_row, end_column)
};
let primary = excerpt_range.primary.to_point(main_buffer);
let context = excerpt_range.context.to_point(main_buffer);
ExcerptRange {
primary: point_range_to_base_text_point_range(primary),
context: point_range_to_base_text_point_range(context),
}
})
.collect();
let main_buffer = primary_multibuffer_ref
.buffer(main_buffer.remote_id())
.unwrap();
self.editor.update(cx, |editor, cx| {
editor.buffer().update(cx, |buffer, cx| {
let (ids, _) = buffer.update_path_excerpts(
path_key.clone(),
base_text_buffer.clone(),
&base_text_buffer_snapshot,
new,
cx,
);
if !ids.is_empty()
&& buffer
.diff_for(base_text_buffer.read(cx).remote_id())
.is_none_or(|old_diff| old_diff.entity_id() != diff.entity_id())
{
buffer.add_inverted_diff(diff, main_buffer, cx);
}
})
});
let secondary_excerpt_ids: Vec<ExcerptId> = self
.multibuffer
.read(cx)
.excerpts_for_path(&path_key)
.collect();
debug_assert_eq!(primary_excerpt_ids.len(), secondary_excerpt_ids.len());
secondary_excerpt_ids
.into_iter()
.zip(primary_excerpt_ids)
.collect()
}
fn sync_path_excerpts(
&mut self,
path_key: PathKey,
primary_multibuffer: &Entity<MultiBuffer>,
diff: Entity<BufferDiff>,
primary_display_map: &Entity<DisplayMap>,
secondary_display_map: &Entity<DisplayMap>,
cx: &mut App,
) {
self.remove_mappings_for_path(
&path_key,
primary_multibuffer,
primary_display_map,
secondary_display_map,
cx,
);
let mappings =
self.update_path_excerpts_from_primary(path_key, primary_multibuffer, diff.clone(), cx);
let secondary_buffer_id = diff.read(cx).base_text(cx).remote_id();
let primary_buffer_id = diff.read(cx).buffer_id;
if let Some(companion) = primary_display_map.read(cx).companion().cloned() {
companion.update(cx, |c, _| {
for (lhs, rhs) in mappings {
c.add_excerpt_mapping(lhs, rhs);
}
c.add_buffer_mapping(secondary_buffer_id, primary_buffer_id);
});
}
}
fn remove_mappings_for_path(
&self,
path_key: &PathKey,
primary_multibuffer: &Entity<MultiBuffer>,
primary_display_map: &Entity<DisplayMap>,
_secondary_display_map: &Entity<DisplayMap>,
cx: &mut App,
) {
let primary_excerpt_ids: Vec<ExcerptId> = primary_multibuffer
.read(cx)
.excerpts_for_path(path_key)
.collect();
let secondary_excerpt_ids: Vec<ExcerptId> = self
.multibuffer
.read(cx)
.excerpts_for_path(path_key)
.collect();
if let Some(companion) = primary_display_map.read(cx).companion().cloned() {
companion.update(cx, |c, _| {
c.remove_excerpt_mappings(secondary_excerpt_ids, primary_excerpt_ids);
});
}
}
}
#[cfg(test)]
mod tests {
use buffer_diff::BufferDiff;
use fs::FakeFs;
use gpui::{AppContext as _, Entity, Pixels, VisualTestContext};
use language::language_settings::SoftWrap;
use language::{Buffer, Capability};
use multi_buffer::{MultiBuffer, PathKey};
use pretty_assertions::assert_eq;
use project::Project;
use rand::rngs::StdRng;
use settings::SettingsStore;
use ui::{VisualContext as _, px};
use workspace::Workspace;
use crate::SplittableEditor;
use crate::test::editor_content_with_blocks_and_width;
async fn init_test(
cx: &mut gpui::TestAppContext,
) -> (Entity<SplittableEditor>, &mut VisualTestContext) {
cx.update(|cx| {
let store = SettingsStore::test(cx);
cx.set_global(store);
theme::init(theme::LoadThemes::JustBase, cx);
crate::init(cx);
});
let project = Project::test(FakeFs::new(cx.executor()), [], cx).await;
let (workspace, cx) =
cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
let primary_multibuffer = cx.new(|cx| {
let mut multibuffer = MultiBuffer::new(Capability::ReadWrite);
multibuffer.set_all_diff_hunks_expanded(cx);
multibuffer
});
let editor = cx.new_window_entity(|window, cx| {
let mut editor = SplittableEditor::new_unsplit(
primary_multibuffer.clone(),
project.clone(),
workspace,
window,
cx,
);
editor.split(&Default::default(), window, cx);
editor.primary_editor.update(cx, |editor, cx| {
editor.set_soft_wrap_mode(SoftWrap::EditorWidth, cx);
});
editor
.secondary
.as_ref()
.unwrap()
.editor
.update(cx, |editor, cx| {
editor.set_soft_wrap_mode(SoftWrap::EditorWidth, cx);
});
editor
});
(editor, cx)
}
fn buffer_with_diff(
base_text: &str,
current_text: &str,
cx: &mut VisualTestContext,
) -> (Entity<Buffer>, Entity<BufferDiff>) {
let buffer = cx.new(|cx| Buffer::local(current_text.to_string(), cx));
let diff = cx.new(|cx| {
BufferDiff::new_with_base_text(base_text, &buffer.read(cx).text_snapshot(), cx)
});
(buffer, diff)
}
#[track_caller]
fn assert_split_content(
editor: &Entity<SplittableEditor>,
expected_primary: String,
expected_secondary: String,
cx: &mut VisualTestContext,
) {
assert_split_content_with_widths(
editor,
px(3000.0),
px(3000.0),
expected_primary,
expected_secondary,
cx,
);
}
#[track_caller]
fn assert_split_content_with_widths(
editor: &Entity<SplittableEditor>,
primary_width: Pixels,
secondary_width: Pixels,
expected_primary: String,
expected_secondary: String,
cx: &mut VisualTestContext,
) {
let (primary_editor, secondary_editor) = editor.update(cx, |editor, _cx| {
let secondary = editor
.secondary
.as_ref()
.expect("should have secondary editor");
(editor.primary_editor.clone(), secondary.editor.clone())
});
// Make sure both sides learn if the other has soft-wrapped
let _ = editor_content_with_blocks_and_width(&primary_editor, primary_width, cx);
cx.run_until_parked();
let _ = editor_content_with_blocks_and_width(&secondary_editor, secondary_width, cx);
cx.run_until_parked();
let primary_content =
editor_content_with_blocks_and_width(&primary_editor, primary_width, cx);
let secondary_content =
editor_content_with_blocks_and_width(&secondary_editor, secondary_width, cx);
if primary_content != expected_primary || secondary_content != expected_secondary {
editor.update(cx, |editor, cx| editor.debug_print(cx));
}
assert_eq!(primary_content, expected_primary, "rhs");
assert_eq!(secondary_content, expected_secondary, "lhs");
}
#[gpui::test(iterations = 100)]
async fn test_random_split_editor(mut rng: StdRng, cx: &mut gpui::TestAppContext) {
use rand::prelude::*;
let (editor, cx) = init_test(cx).await;
let operations = std::env::var("OPERATIONS")
.map(|i| i.parse().expect("invalid `OPERATIONS` variable"))
.unwrap_or(10);
let rng = &mut rng;
for _ in 0..operations {
let buffers = editor.update(cx, |editor, cx| {
editor
.primary_editor
.read(cx)
.buffer()
.read(cx)
.all_buffers()
});
if buffers.is_empty() {
log::info!("adding excerpts to empty multibuffer");
editor.update(cx, |editor, cx| {
editor.randomly_edit_excerpts(rng, 2, cx);
editor.check_invariants(true, cx);
});
continue;
}
let mut quiesced = false;
match rng.random_range(0..100) {
0..=44 => {
log::info!("randomly editing multibuffer");
editor.update(cx, |editor, cx| {
editor.primary_multibuffer.update(cx, |multibuffer, cx| {
multibuffer.randomly_edit(rng, 5, cx);
})
})
}
45..=64 => {
log::info!("randomly undoing/redoing in single buffer");
let buffer = buffers.iter().choose(rng).unwrap();
buffer.update(cx, |buffer, cx| {
buffer.randomly_undo_redo(rng, cx);
});
}
65..=79 => {
log::info!("mutating excerpts");
editor.update(cx, |editor, cx| {
editor.randomly_edit_excerpts(rng, 2, cx);
});
}
_ => {
log::info!("quiescing");
for buffer in buffers {
let buffer_snapshot =
buffer.read_with(cx, |buffer, _| buffer.text_snapshot());
let diff = editor.update(cx, |editor, cx| {
editor
.primary_multibuffer
.read(cx)
.diff_for(buffer.read(cx).remote_id())
.unwrap()
});
diff.update(cx, |diff, cx| {
diff.recalculate_diff_sync(&buffer_snapshot, cx);
});
cx.run_until_parked();
let diff_snapshot = diff.read_with(cx, |diff, cx| diff.snapshot(cx));
let ranges = diff_snapshot
.hunks(&buffer_snapshot)
.map(|hunk| hunk.range)
.collect::<Vec<_>>();
editor.update(cx, |editor, cx| {
let path = PathKey::for_buffer(&buffer, cx);
editor.set_excerpts_for_path(path, buffer, ranges, 2, diff, cx);
});
}
quiesced = true;
}
}
editor.update(cx, |editor, cx| {
editor.check_invariants(quiesced, cx);
});
}
}
#[gpui::test]
async fn test_basic_alignment(cx: &mut gpui::TestAppContext) {
use rope::Point;
use unindent::Unindent as _;
let (editor, mut cx) = init_test(cx).await;
let base_text = "
aaa
bbb
ccc
ddd
eee
fff
"
.unindent();
let current_text = "
aaa
ddd
eee
fff
"
.unindent();
let (buffer, diff) = buffer_with_diff(&base_text, &current_text, &mut cx);
editor.update(cx, |editor, cx| {
let path = PathKey::for_buffer(&buffer, cx);
editor.set_excerpts_for_path(
path,
buffer.clone(),
vec![Point::new(0, 0)..buffer.read(cx).max_point()],
0,
diff.clone(),
cx,
);
});
cx.run_until_parked();
assert_split_content(
&editor,
"
§ <no file>
§ -----
aaa
§ spacer
§ spacer
ddd
eee
fff"
.unindent(),
"
§ <no file>
§ -----
aaa
bbb
ccc
ddd
eee
fff"
.unindent(),
&mut cx,
);
buffer.update(cx, |buffer, cx| {
buffer.edit([(Point::new(3, 0)..Point::new(3, 3), "FFF")], None, cx);
});
cx.run_until_parked();
assert_split_content(
&editor,
"
§ <no file>
§ -----
aaa
§ spacer
§ spacer
ddd
eee
FFF"
.unindent(),
"
§ <no file>
§ -----
aaa
bbb
ccc
ddd
eee
fff"
.unindent(),
&mut cx,
);
let buffer_snapshot = buffer.read_with(cx, |buffer, _| buffer.text_snapshot());
diff.update(cx, |diff, cx| {
diff.recalculate_diff_sync(&buffer_snapshot, cx);
});
cx.run_until_parked();
assert_split_content(
&editor,
"
§ <no file>
§ -----
aaa
§ spacer
§ spacer
ddd
eee
FFF"
.unindent(),
"
§ <no file>
§ -----
aaa
bbb
ccc
ddd
eee
fff"
.unindent(),
&mut cx,
);
}
#[gpui::test]
async fn test_deleting_unmodified_lines(cx: &mut gpui::TestAppContext) {
use rope::Point;
use unindent::Unindent as _;
let (editor, mut cx) = init_test(cx).await;
let base_text1 = "
aaa
bbb
ccc
ddd
eee"
.unindent();
let base_text2 = "
fff
ggg
hhh
iii
jjj"
.unindent();
let (buffer1, diff1) = buffer_with_diff(&base_text1, &base_text1, &mut cx);
let (buffer2, diff2) = buffer_with_diff(&base_text2, &base_text2, &mut cx);
editor.update(cx, |editor, cx| {
let path1 = PathKey::for_buffer(&buffer1, cx);
editor.set_excerpts_for_path(
path1,
buffer1.clone(),
vec![Point::new(0, 0)..buffer1.read(cx).max_point()],
0,
diff1.clone(),
cx,
);
let path2 = PathKey::for_buffer(&buffer2, cx);
editor.set_excerpts_for_path(
path2,
buffer2.clone(),
vec![Point::new(0, 0)..buffer2.read(cx).max_point()],
1,
diff2.clone(),
cx,
);
});
cx.run_until_parked();
buffer1.update(cx, |buffer, cx| {
buffer.edit(
[
(Point::new(0, 0)..Point::new(1, 0), ""),
(Point::new(3, 0)..Point::new(4, 0), ""),
],
None,
cx,
);
});
buffer2.update(cx, |buffer, cx| {
buffer.edit(
[
(Point::new(0, 0)..Point::new(1, 0), ""),
(Point::new(3, 0)..Point::new(4, 0), ""),
],
None,
cx,
);
});
cx.run_until_parked();
assert_split_content(
&editor,
"
§ <no file>
§ -----
§ spacer
bbb
ccc
§ spacer
eee
§ <no file>
§ -----
§ spacer
ggg
hhh
§ spacer
jjj"
.unindent(),
"
§ <no file>
§ -----
aaa
bbb
ccc
ddd
eee
§ <no file>
§ -----
fff
ggg
hhh
iii
jjj"
.unindent(),
&mut cx,
);
let buffer1_snapshot = buffer1.read_with(cx, |buffer, _| buffer.text_snapshot());
diff1.update(cx, |diff, cx| {
diff.recalculate_diff_sync(&buffer1_snapshot, cx);
});
let buffer2_snapshot = buffer2.read_with(cx, |buffer, _| buffer.text_snapshot());
diff2.update(cx, |diff, cx| {
diff.recalculate_diff_sync(&buffer2_snapshot, cx);
});
cx.run_until_parked();
assert_split_content(
&editor,
"
§ <no file>
§ -----
§ spacer
bbb
ccc
§ spacer
eee
§ <no file>
§ -----
§ spacer
ggg
hhh
§ spacer
jjj"
.unindent(),
"
§ <no file>
§ -----
aaa
bbb
ccc
ddd
eee
§ <no file>
§ -----
fff
ggg
hhh
iii
jjj"
.unindent(),
&mut cx,
);
}
#[gpui::test]
async fn test_deleting_added_line(cx: &mut gpui::TestAppContext) {
use rope::Point;
use unindent::Unindent as _;
let (editor, mut cx) = init_test(cx).await;
let base_text = "
aaa
bbb
ccc
ddd
"
.unindent();
let current_text = "
aaa
NEW1
NEW2
ccc
ddd
"
.unindent();
let (buffer, diff) = buffer_with_diff(&base_text, &current_text, &mut cx);
editor.update(cx, |editor, cx| {
let path = PathKey::for_buffer(&buffer, cx);
editor.set_excerpts_for_path(
path,
buffer.clone(),
vec![Point::new(0, 0)..buffer.read(cx).max_point()],
0,
diff.clone(),
cx,
);
});
cx.run_until_parked();
assert_split_content(
&editor,
"
§ <no file>
§ -----
aaa
NEW1
NEW2
ccc
ddd"
.unindent(),
"
§ <no file>
§ -----
aaa
bbb
§ spacer
ccc
ddd"
.unindent(),
&mut cx,
);
buffer.update(cx, |buffer, cx| {
buffer.edit([(Point::new(2, 0)..Point::new(3, 0), "")], None, cx);
});
cx.run_until_parked();
assert_split_content(
&editor,
"
§ <no file>
§ -----
aaa
NEW1
ccc
ddd"
.unindent(),
"
§ <no file>
§ -----
aaa
bbb
ccc
ddd"
.unindent(),
&mut cx,
);
let buffer_snapshot = buffer.read_with(cx, |buffer, _| buffer.text_snapshot());
diff.update(cx, |diff, cx| {
diff.recalculate_diff_sync(&buffer_snapshot, cx);
});
cx.run_until_parked();
assert_split_content(
&editor,
"
§ <no file>
§ -----
aaa
NEW1
ccc
ddd"
.unindent(),
"
§ <no file>
§ -----
aaa
bbb
ccc
ddd"
.unindent(),
&mut cx,
);
}
#[gpui::test]
async fn test_inserting_consecutive_blank_line(cx: &mut gpui::TestAppContext) {
use rope::Point;
use unindent::Unindent as _;
let (editor, mut cx) = init_test(cx).await;
let base_text = "
aaa
bbb
ccc
ddd
"
.unindent();
let current_text = "
aaa
bbb
CCC
ddd
"
.unindent();
let (buffer, diff) = buffer_with_diff(&base_text, &current_text, &mut cx);
editor.update(cx, |editor, cx| {
let path = PathKey::for_buffer(&buffer, cx);
editor.set_excerpts_for_path(
path,
buffer.clone(),
vec![Point::new(0, 0)..buffer.read(cx).max_point()],
0,
diff.clone(),
cx,
);
});
cx.run_until_parked();
buffer.update(cx, |buffer, cx| {
buffer.edit([(Point::new(1, 3)..Point::new(1, 3), "\n")], None, cx);
});
cx.run_until_parked();
assert_split_content(
&editor,
"
§ <no file>
§ -----
aaa
bbb
CCC
ddd"
.unindent(),
"
§ <no file>
§ -----
aaa
bbb
§ spacer
ccc
ddd"
.unindent(),
&mut cx,
);
let buffer_snapshot = buffer.read_with(cx, |buffer, _| buffer.text_snapshot());
diff.update(cx, |diff, cx| {
diff.recalculate_diff_sync(&buffer_snapshot, cx);
});
cx.run_until_parked();
assert_split_content(
&editor,
"
§ <no file>
§ -----
aaa
bbb
CCC
ddd"
.unindent(),
"
§ <no file>
§ -----
aaa
bbb
ccc
§ spacer
ddd"
.unindent(),
&mut cx,
);
}
#[gpui::test]
async fn test_reverting_deletion_hunk(cx: &mut gpui::TestAppContext) {
use git::Restore;
use rope::Point;
use unindent::Unindent as _;
let (editor, mut cx) = init_test(cx).await;
let base_text = "
aaa
bbb
ccc
ddd
eee
"
.unindent();
let current_text = "
aaa
ddd
eee
"
.unindent();
let (buffer, diff) = buffer_with_diff(&base_text, &current_text, &mut cx);
editor.update(cx, |editor, cx| {
let path = PathKey::for_buffer(&buffer, cx);
editor.set_excerpts_for_path(
path,
buffer.clone(),
vec![Point::new(0, 0)..buffer.read(cx).max_point()],
0,
diff.clone(),
cx,
);
});
cx.run_until_parked();
assert_split_content(
&editor,
"
§ <no file>
§ -----
aaa
§ spacer
§ spacer
ddd
eee"
.unindent(),
"
§ <no file>
§ -----
aaa
bbb
ccc
ddd
eee"
.unindent(),
&mut cx,
);
let primary_editor = editor.update(cx, |editor, _cx| editor.primary_editor.clone());
cx.update_window_entity(&primary_editor, |editor, window, cx| {
editor.change_selections(crate::SelectionEffects::no_scroll(), window, cx, |s| {
s.select_ranges([Point::new(1, 0)..Point::new(1, 0)]);
});
editor.git_restore(&Restore, window, cx);
});
cx.run_until_parked();
assert_split_content(
&editor,
"
§ <no file>
§ -----
aaa
bbb
ccc
ddd
eee"
.unindent(),
"
§ <no file>
§ -----
aaa
bbb
ccc
ddd
eee"
.unindent(),
&mut cx,
);
let buffer_snapshot = buffer.read_with(cx, |buffer, _| buffer.text_snapshot());
diff.update(cx, |diff, cx| {
diff.recalculate_diff_sync(&buffer_snapshot, cx);
});
cx.run_until_parked();
assert_split_content(
&editor,
"
§ <no file>
§ -----
aaa
bbb
ccc
ddd
eee"
.unindent(),
"
§ <no file>
§ -----
aaa
bbb
ccc
ddd
eee"
.unindent(),
&mut cx,
);
}
#[gpui::test]
async fn test_deleting_added_lines(cx: &mut gpui::TestAppContext) {
use rope::Point;
use unindent::Unindent as _;
let (editor, mut cx) = init_test(cx).await;
let base_text = "
aaa
old1
old2
old3
old4
zzz
"
.unindent();
let current_text = "
aaa
new1
new2
new3
new4
zzz
"
.unindent();
let (buffer, diff) = buffer_with_diff(&base_text, &current_text, &mut cx);
editor.update(cx, |editor, cx| {
let path = PathKey::for_buffer(&buffer, cx);
editor.set_excerpts_for_path(
path,
buffer.clone(),
vec![Point::new(0, 0)..buffer.read(cx).max_point()],
0,
diff.clone(),
cx,
);
});
cx.run_until_parked();
buffer.update(cx, |buffer, cx| {
buffer.edit(
[
(Point::new(2, 0)..Point::new(3, 0), ""),
(Point::new(4, 0)..Point::new(5, 0), ""),
],
None,
cx,
);
});
cx.run_until_parked();
assert_split_content(
&editor,
"
§ <no file>
§ -----
aaa
new1
new3
§ spacer
§ spacer
zzz"
.unindent(),
"
§ <no file>
§ -----
aaa
old1
old2
old3
old4
zzz"
.unindent(),
&mut cx,
);
let buffer_snapshot = buffer.read_with(cx, |buffer, _| buffer.text_snapshot());
diff.update(cx, |diff, cx| {
diff.recalculate_diff_sync(&buffer_snapshot, cx);
});
cx.run_until_parked();
assert_split_content(
&editor,
"
§ <no file>
§ -----
aaa
new1
new3
§ spacer
§ spacer
zzz"
.unindent(),
"
§ <no file>
§ -----
aaa
old1
old2
old3
old4
zzz"
.unindent(),
&mut cx,
);
}
#[gpui::test]
async fn test_soft_wrap_at_end_of_excerpt(cx: &mut gpui::TestAppContext) {
use rope::Point;
use unindent::Unindent as _;
let (editor, mut cx) = init_test(cx).await;
let text = "aaaa bbbb cccc dddd eeee ffff";
let (buffer1, diff1) = buffer_with_diff(text, text, &mut cx);
let (buffer2, diff2) = buffer_with_diff(text, text, &mut cx);
editor.update(cx, |editor, cx| {
let end = Point::new(0, text.len() as u32);
let path1 = PathKey::for_buffer(&buffer1, cx);
editor.set_excerpts_for_path(
path1,
buffer1.clone(),
vec![Point::new(0, 0)..end],
0,
diff1.clone(),
cx,
);
let path2 = PathKey::for_buffer(&buffer2, cx);
editor.set_excerpts_for_path(
path2,
buffer2.clone(),
vec![Point::new(0, 0)..end],
0,
diff2.clone(),
cx,
);
});
cx.run_until_parked();
assert_split_content_with_widths(
&editor,
px(200.0),
px(400.0),
"
§ <no file>
§ -----
aaaa bbbb\x20
cccc dddd\x20
eeee ffff
§ <no file>
§ -----
aaaa bbbb\x20
cccc dddd\x20
eeee ffff"
.unindent(),
"
§ <no file>
§ -----
aaaa bbbb cccc dddd eeee ffff
§ spacer
§ spacer
§ <no file>
§ -----
aaaa bbbb cccc dddd eeee ffff
§ spacer
§ spacer"
.unindent(),
&mut cx,
);
}
#[gpui::test]
async fn test_soft_wrap_before_modification_hunk(cx: &mut gpui::TestAppContext) {
use rope::Point;
use unindent::Unindent as _;
let (editor, mut cx) = init_test(cx).await;
let base_text = "
aaaa bbbb cccc dddd eeee ffff
old line one
old line two
"
.unindent();
let current_text = "
aaaa bbbb cccc dddd eeee ffff
new line
"
.unindent();
let (buffer, diff) = buffer_with_diff(&base_text, &current_text, &mut cx);
editor.update(cx, |editor, cx| {
let path = PathKey::for_buffer(&buffer, cx);
editor.set_excerpts_for_path(
path,
buffer.clone(),
vec![Point::new(0, 0)..buffer.read(cx).max_point()],
0,
diff.clone(),
cx,
);
});
cx.run_until_parked();
assert_split_content_with_widths(
&editor,
px(200.0),
px(400.0),
"
§ <no file>
§ -----
aaaa bbbb\x20
cccc dddd\x20
eeee ffff
new line
§ spacer"
.unindent(),
"
§ <no file>
§ -----
aaaa bbbb cccc dddd eeee ffff
§ spacer
§ spacer
old line one
old line two"
.unindent(),
&mut cx,
);
}
#[gpui::test]
async fn test_soft_wrap_before_deletion_hunk(cx: &mut gpui::TestAppContext) {
use rope::Point;
use unindent::Unindent as _;
let (editor, mut cx) = init_test(cx).await;
let base_text = "
aaaa bbbb cccc dddd eeee ffff
deleted line one
deleted line two
after
"
.unindent();
let current_text = "
aaaa bbbb cccc dddd eeee ffff
after
"
.unindent();
let (buffer, diff) = buffer_with_diff(&base_text, &current_text, &mut cx);
editor.update(cx, |editor, cx| {
let path = PathKey::for_buffer(&buffer, cx);
editor.set_excerpts_for_path(
path,
buffer.clone(),
vec![Point::new(0, 0)..buffer.read(cx).max_point()],
0,
diff.clone(),
cx,
);
});
cx.run_until_parked();
assert_split_content_with_widths(
&editor,
px(400.0),
px(200.0),
"
§ <no file>
§ -----
aaaa bbbb cccc dddd eeee ffff
§ spacer
§ spacer
§ spacer
§ spacer
§ spacer
§ spacer
after"
.unindent(),
"
§ <no file>
§ -----
aaaa bbbb\x20
cccc dddd\x20
eeee ffff
deleted\x20
line one
deleted\x20
line two
after"
.unindent(),
&mut cx,
);
}
#[gpui::test]
async fn test_soft_wrap_spacer_after_editing_second_line(cx: &mut gpui::TestAppContext) {
use rope::Point;
use unindent::Unindent as _;
let (editor, mut cx) = init_test(cx).await;
let text = "
aaaa bbbb cccc dddd eeee ffff
short
"
.unindent();
let (buffer, diff) = buffer_with_diff(&text, &text, &mut cx);
editor.update(cx, |editor, cx| {
let path = PathKey::for_buffer(&buffer, cx);
editor.set_excerpts_for_path(
path,
buffer.clone(),
vec![Point::new(0, 0)..buffer.read(cx).max_point()],
0,
diff.clone(),
cx,
);
});
cx.run_until_parked();
assert_split_content_with_widths(
&editor,
px(400.0),
px(200.0),
"
§ <no file>
§ -----
aaaa bbbb cccc dddd eeee ffff
§ spacer
§ spacer
short"
.unindent(),
"
§ <no file>
§ -----
aaaa bbbb\x20
cccc dddd\x20
eeee ffff
short"
.unindent(),
&mut cx,
);
buffer.update(cx, |buffer, cx| {
buffer.edit([(Point::new(1, 0)..Point::new(1, 5), "modified")], None, cx);
});
cx.run_until_parked();
assert_split_content_with_widths(
&editor,
px(400.0),
px(200.0),
"
§ <no file>
§ -----
aaaa bbbb cccc dddd eeee ffff
§ spacer
§ spacer
modified"
.unindent(),
"
§ <no file>
§ -----
aaaa bbbb\x20
cccc dddd\x20
eeee ffff
short"
.unindent(),
&mut cx,
);
let buffer_snapshot = buffer.read_with(cx, |buffer, _| buffer.text_snapshot());
diff.update(cx, |diff, cx| {
diff.recalculate_diff_sync(&buffer_snapshot, cx);
});
cx.run_until_parked();
assert_split_content_with_widths(
&editor,
px(400.0),
px(200.0),
"
§ <no file>
§ -----
aaaa bbbb cccc dddd eeee ffff
§ spacer
§ spacer
modified"
.unindent(),
"
§ <no file>
§ -----
aaaa bbbb\x20
cccc dddd\x20
eeee ffff
short"
.unindent(),
&mut cx,
);
}
#[gpui::test]
async fn test_no_base_text(cx: &mut gpui::TestAppContext) {
use rope::Point;
use unindent::Unindent as _;
let (editor, mut cx) = init_test(cx).await;
let (buffer1, diff1) = buffer_with_diff("xxx\nyyy", "xxx\nyyy", &mut cx);
let current_text = "
aaa
bbb
ccc
"
.unindent();
let buffer2 = cx.new(|cx| Buffer::local(current_text.to_string(), cx));
let diff2 = cx.new(|cx| BufferDiff::new(&buffer2.read(cx).text_snapshot(), cx));
editor.update(cx, |editor, cx| {
let path1 = PathKey::for_buffer(&buffer1, cx);
editor.set_excerpts_for_path(
path1,
buffer1.clone(),
vec![Point::new(0, 0)..buffer1.read(cx).max_point()],
0,
diff1.clone(),
cx,
);
let path2 = PathKey::for_buffer(&buffer2, cx);
editor.set_excerpts_for_path(
path2,
buffer2.clone(),
vec![Point::new(0, 0)..buffer2.read(cx).max_point()],
1,
diff2.clone(),
cx,
);
});
cx.run_until_parked();
assert_split_content(
&editor,
"
§ <no file>
§ -----
xxx
yyy
§ <no file>
§ -----
aaa
bbb
ccc"
.unindent(),
"
§ <no file>
§ -----
xxx
yyy
§ <no file>
§ -----
§ spacer
§ spacer
§ spacer"
.unindent(),
&mut cx,
);
buffer1.update(cx, |buffer, cx| {
buffer.edit([(Point::new(0, 3)..Point::new(0, 3), "z")], None, cx);
});
cx.run_until_parked();
assert_split_content(
&editor,
"
§ <no file>
§ -----
xxxz
yyy
§ <no file>
§ -----
aaa
bbb
ccc"
.unindent(),
"
§ <no file>
§ -----
xxx
yyy
§ <no file>
§ -----
§ spacer
§ spacer
§ spacer"
.unindent(),
&mut cx,
);
}
#[gpui::test]
async fn test_deleting_char_in_added_line(cx: &mut gpui::TestAppContext) {
use rope::Point;
use unindent::Unindent as _;
let (editor, mut cx) = init_test(cx).await;
let base_text = "
aaa
bbb
ccc
"
.unindent();
let current_text = "
NEW1
NEW2
ccc
"
.unindent();
let (buffer, diff) = buffer_with_diff(&base_text, &current_text, &mut cx);
editor.update(cx, |editor, cx| {
let path = PathKey::for_buffer(&buffer, cx);
editor.set_excerpts_for_path(
path,
buffer.clone(),
vec![Point::new(0, 0)..buffer.read(cx).max_point()],
0,
diff.clone(),
cx,
);
});
cx.run_until_parked();
assert_split_content(
&editor,
"
§ <no file>
§ -----
NEW1
NEW2
ccc"
.unindent(),
"
§ <no file>
§ -----
aaa
bbb
ccc"
.unindent(),
&mut cx,
);
buffer.update(cx, |buffer, cx| {
buffer.edit([(Point::new(1, 3)..Point::new(1, 4), "")], None, cx);
});
cx.run_until_parked();
assert_split_content(
&editor,
"
§ <no file>
§ -----
NEW1
NEW
ccc"
.unindent(),
"
§ <no file>
§ -----
aaa
bbb
ccc"
.unindent(),
&mut cx,
);
}
#[gpui::test]
async fn test_soft_wrap_spacer_before_added_line(cx: &mut gpui::TestAppContext) {
use rope::Point;
use unindent::Unindent as _;
let (editor, mut cx) = init_test(cx).await;
let base_text = "aaaa bbbb cccc dddd eeee ffff\n";
let current_text = "
aaaa bbbb cccc dddd eeee ffff
added line
"
.unindent();
let (buffer, diff) = buffer_with_diff(&base_text, &current_text, &mut cx);
editor.update(cx, |editor, cx| {
let path = PathKey::for_buffer(&buffer, cx);
editor.set_excerpts_for_path(
path,
buffer.clone(),
vec![Point::new(0, 0)..buffer.read(cx).max_point()],
0,
diff.clone(),
cx,
);
});
cx.run_until_parked();
assert_split_content_with_widths(
&editor,
px(400.0),
px(200.0),
"
§ <no file>
§ -----
aaaa bbbb cccc dddd eeee ffff
§ spacer
§ spacer
added line"
.unindent(),
"
§ <no file>
§ -----
aaaa bbbb\x20
cccc dddd\x20
eeee ffff
§ spacer"
.unindent(),
&mut cx,
);
assert_split_content_with_widths(
&editor,
px(200.0),
px(400.0),
"
§ <no file>
§ -----
aaaa bbbb\x20
cccc dddd\x20
eeee ffff
added line"
.unindent(),
"
§ <no file>
§ -----
aaaa bbbb cccc dddd eeee ffff
§ spacer
§ spacer
§ spacer"
.unindent(),
&mut cx,
);
}
#[gpui::test]
#[ignore]
async fn test_joining_added_line_with_unmodified_line(cx: &mut gpui::TestAppContext) {
use rope::Point;
use unindent::Unindent as _;
let (editor, mut cx) = init_test(cx).await;
let base_text = "
aaa
bbb
ccc
ddd
eee
"
.unindent();
let current_text = "
aaa
NEW
eee
"
.unindent();
let (buffer, diff) = buffer_with_diff(&base_text, &current_text, &mut cx);
editor.update(cx, |editor, cx| {
let path = PathKey::for_buffer(&buffer, cx);
editor.set_excerpts_for_path(
path,
buffer.clone(),
vec![Point::new(0, 0)..buffer.read(cx).max_point()],
0,
diff.clone(),
cx,
);
});
cx.run_until_parked();
assert_split_content(
&editor,
"
§ <no file>
§ -----
aaa
NEW
§ spacer
§ spacer
eee"
.unindent(),
"
§ <no file>
§ -----
aaa
bbb
ccc
ddd
eee"
.unindent(),
&mut cx,
);
buffer.update(cx, |buffer, cx| {
buffer.edit([(Point::new(1, 3)..Point::new(2, 0), "")], None, cx);
});
cx.run_until_parked();
assert_split_content(
&editor,
"
§ <no file>
§ -----
aaa
§ spacer
§ spacer
§ spacer
NEWeee"
.unindent(),
"
§ <no file>
§ -----
aaa
bbb
ccc
ddd
eee"
.unindent(),
&mut cx,
);
let buffer_snapshot = buffer.read_with(cx, |buffer, _| buffer.text_snapshot());
diff.update(cx, |diff, cx| {
diff.recalculate_diff_sync(&buffer_snapshot, cx);
});
cx.run_until_parked();
assert_split_content(
&editor,
"
§ <no file>
§ -----
aaa
NEWeee
§ spacer
§ spacer
§ spacer"
.unindent(),
"
§ <no file>
§ -----
aaa
bbb
ccc
ddd
eee"
.unindent(),
&mut cx,
);
}
}
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