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Ensure a minimum selection width on commands that need it.

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This commit is contained in:
Nathan Vegdahl 2021-07-01 09:51:24 -07:00
parent 7c7be6d583
commit e725957704
2 changed files with 73 additions and 64 deletions
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9
helix-core/src/selection.rs
View File

@ -308,7 +308,7 @@ pub fn point(pos: usize) -> Self {
}
/// Normalizes a `Selection`.
pub fn normalize(mut self) -> Self {
fn normalize(mut self) -> Self {
let primary = self.ranges[self.primary_index];
self.ranges.sort_unstable_by_key(Range::from);
self.primary_index = self
@ -363,7 +363,12 @@ pub fn transform<F>(mut self, f: F) -> Self
*range = f(*range)
}
self
self.normalize()
}
/// A convenience short-cut for `transform(|r| r.min_width_1(text))`.
pub fn min_width_1(mut self, text: RopeSlice) -> Self {
self.transform(|r| r.min_width_1(text))
}
pub fn fragments<'a>(&'a self, text: RopeSlice<'a>) -> impl Iterator<Item = Cow<str>> + 'a {

128
helix-term/src/commands.rs
View File

@ -718,24 +718,30 @@ fn replace(cx: &mut Context) {
_ => None,
};
if let Some(ch) = ch {
let transaction =
Transaction::change_by_selection(doc.text(), doc.selection(view.id), |range| {
let max_to = rope_end_without_line_ending(&doc.text().slice(..));
let to = std::cmp::min(max_to, range.to() + 1);
let text: String = RopeGraphemes::new(doc.text().slice(range.from()..to))
.map(|g| {
let cow: Cow<str> = g.into();
if str_is_line_ending(&cow) {
cow
} else {
ch.into()
}
})
.collect();
let text = doc.text().slice(..);
let selection = doc.selection(view.id).clone().min_width_1(text);
(range.from(), to, Some(text.into()))
});
if let Some(ch) = ch {
let transaction = Transaction::change_by_selection(doc.text(), &selection, |range| {
if !range.is_empty() {
let text: String =
RopeGraphemes::new(doc.text().slice(range.from()..range.to()))
.map(|g| {
let cow: Cow<str> = g.into();
if str_is_line_ending(&cow) {
cow
} else {
ch.into()
}
})
.collect();
(range.from(), range.to(), Some(text.into()))
} else {
// No change.
(range.from(), range.to(), None)
}
});
doc.apply(&transaction, view.id);
doc.append_changes_to_history(view.id);
@ -1050,24 +1056,18 @@ fn extend_line(cx: &mut Context) {
}
fn delete_selection_impl(reg: &mut Register, doc: &mut Document, view_id: ViewId) {
// first yank the selection
let values: Vec<String> = doc
.selection(view_id)
.fragments(doc.text().slice(..))
.map(Cow::into_owned)
.collect();
let text = doc.text().slice(..);
let selection = doc.selection(view_id).clone().min_width_1(text);
// first yank the selection
let values: Vec<String> = selection.fragments(text).map(Cow::into_owned).collect();
reg.write(values);
// then delete
let transaction =
Transaction::change_by_selection(doc.text(), doc.selection(view_id), |range| {
let alltext = doc.text().slice(..);
let line = alltext.char_to_line(range.head);
let max_to = rope_end_without_line_ending(&alltext);
let to = std::cmp::min(max_to, range.to() + 1);
(range.from(), to, None)
});
let transaction = Transaction::change_by_selection(doc.text(), &selection, |range| {
let line = text.char_to_line(range.head);
(range.from(), range.to(), None)
});
doc.apply(&transaction, view_id);
}
@ -1513,11 +1513,13 @@ fn replace_selections_with_clipboard(cx: &mut compositor::Context, _: &[&str], _
match cx.editor.clipboard_provider.get_contents() {
Ok(contents) => {
let selection = doc
.selection(view.id)
.clone()
.min_width_1(doc.text().slice(..));
let transaction =
Transaction::change_by_selection(doc.text(), doc.selection(view.id), |range| {
let max_to = rope_end_without_line_ending(&doc.text().slice(..));
let to = std::cmp::min(max_to, range.to() + 1);
(range.from(), to, Some(contents.as_str().into()))
Transaction::change_by_selection(doc.text(), &selection, |range| {
(range.from(), range.to(), Some(contents.as_str().into()))
});
doc.apply(&transaction, view.id);
@ -2864,17 +2866,18 @@ fn paste_impl(
let mut values = values.iter().cloned().map(Tendril::from).chain(repeat);
let text = doc.text();
let selection = doc.selection(view.id).clone().min_width_1(text.slice(..));
let transaction = Transaction::change_by_selection(text, doc.selection(view.id), |range| {
let transaction = Transaction::change_by_selection(text, &selection, |range| {
let pos = match (action, linewise) {
// paste linewise before
(Paste::Before, true) => text.line_to_char(text.char_to_line(range.from())),
// paste linewise after
(Paste::After, true) => text.line_to_char(text.char_to_line(range.to()) + 1),
(Paste::After, true) => text.line_to_char(text.char_to_line(range.to())),
// paste insert
(Paste::Before, false) => range.from(),
// paste append
(Paste::After, false) => range.to() + 1,
(Paste::After, false) => range.to(),
};
(pos, pos, Some(values.next().unwrap()))
});
@ -2914,12 +2917,17 @@ fn replace_with_yanked(cx: &mut Context) {
if let Some(values) = registers.read(reg_name) {
if let Some(yank) = values.first() {
let transaction =
Transaction::change_by_selection(doc.text(), doc.selection(view.id), |range| {
let max_to = rope_end_without_line_ending(&doc.text().slice(..));
let to = std::cmp::min(max_to, range.to() + 1);
(range.from(), to, Some(yank.as_str().into()))
});
let selection = doc
.selection(view.id)
.clone()
.min_width_1(doc.text().slice(..));
let transaction = Transaction::change_by_selection(doc.text(), &selection, |range| {
if !range.is_empty() {
(range.from(), range.to(), Some(yank.as_str().into()))
} else {
(range.from(), range.to(), None)
}
});
doc.apply(&transaction, view.id);
doc.append_changes_to_history(view.id);
@ -2932,12 +2940,13 @@ fn replace_selections_with_clipboard_impl(editor: &mut Editor) {
match editor.clipboard_provider.get_contents() {
Ok(contents) => {
let transaction =
Transaction::change_by_selection(doc.text(), doc.selection(view.id), |range| {
let max_to = rope_end_without_line_ending(&doc.text().slice(..));
let to = std::cmp::min(max_to, range.to() + 1);
(range.from(), to, Some(contents.as_str().into()))
});
let selection = doc
.selection(view.id)
.clone()
.min_width_1(doc.text().slice(..));
let transaction = Transaction::change_by_selection(doc.text(), &selection, |range| {
(range.from(), range.to(), Some(contents.as_str().into()))
});
doc.apply(&transaction, view.id);
doc.append_changes_to_history(view.id);
@ -3575,18 +3584,13 @@ fn surround_add(cx: &mut Context) {
{
let (view, doc) = current!(cx.editor);
let text = doc.text().slice(..);
let selection = doc.selection(view.id);
let selection = doc.selection(view.id).clone().min_width_1(text);
let (open, close) = surround::get_pair(ch);
let mut changes = Vec::new();
for (i, range) in selection.iter().enumerate() {
let from = range.from();
let line = text.char_to_line(range.to());
let max_to = rope_end_without_line_ending(&text);
let to = std::cmp::min(range.to() + 1, max_to);
changes.push((from, from, Some(Tendril::from_char(open))));
changes.push((to, to, Some(Tendril::from_char(close))));
changes.push((range.from(), range.from(), Some(Tendril::from_char(open))));
changes.push((range.to(), range.to(), Some(Tendril::from_char(close))));
}
let transaction = Transaction::change(doc.text(), changes.into_iter());
@ -3612,9 +3616,9 @@ fn surround_replace(cx: &mut Context) {
{
let (view, doc) = current!(cx.editor);
let text = doc.text().slice(..);
let selection = doc.selection(view.id);
let selection = doc.selection(view.id).clone().min_width_1(text);
let change_pos = match surround::get_surround_pos(text, selection, from, count)
let change_pos = match surround::get_surround_pos(text, &selection, from, count)
{
Some(c) => c,
None => return,
@ -3646,9 +3650,9 @@ fn surround_delete(cx: &mut Context) {
{
let (view, doc) = current!(cx.editor);
let text = doc.text().slice(..);
let selection = doc.selection(view.id);
let selection = doc.selection(view.id).clone().min_width_1(text);
let change_pos = match surround::get_surround_pos(text, selection, ch, count) {
let change_pos = match surround::get_surround_pos(text, &selection, ch, count) {
Some(c) => c,
None => return,
};