Scroll cursor and page together (neovim-like scrolling) (#8015)
* neovim like scroll function * clear line annotations outside of move_vertically/_visual * add nvim scroll function to commands * assign nvim-scroll to C-d and C-u (half page scrolls) * dont remove backspace and space mapping * move non-softwrap logic to seperate function, call this in nvim-scroll fn * Revert "move non-softwrap logic to seperate function, call this in nvim-scroll fn" This reverts commit e4905729c338a2260e6981f1d8fac022897b4191. * Revert "clear line annotations outside of move_vertically/_visual" This reverts commit 1df3fefe55afc840d1ab5094b2116d1127fc363f. * add TODO for when inline diagnostics gets merged * move nvim-scroll logic into scroll(), dont respect scrolloff * run cargo fmt * run cargo clippy * update documenation for Ctrl-d and Ctrl-u remap
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6432669822
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4 changed files with 81 additions and 29 deletions
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@ -53,8 +53,8 @@ Normal mode is the default mode when you launch helix. You can return to it from
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| `End` | Move to the end of the line | `goto_line_end` |
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| `Ctrl-b`, `PageUp` | Move page up | `page_up` |
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| `Ctrl-f`, `PageDown` | Move page down | `page_down` |
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| `Ctrl-u` | Move half page up | `half_page_up` |
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| `Ctrl-d` | Move half page down | `half_page_down` |
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| `Ctrl-u` | Move cursor and page half page up | `page_cursor_half_up` |
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| `Ctrl-d` | Move cursor and page half page down | `page_cursor_half_down` |
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| `Ctrl-i` | Jump forward on the jumplist | `jump_forward` |
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| `Ctrl-o` | Jump backward on the jumplist | `jump_backward` |
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| `Ctrl-s` | Save the current selection to the jumplist | `save_selection` |
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@ -182,18 +182,18 @@ normal mode) is persistent and can be exited using the escape key. This is
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useful when you're simply looking over text and not actively editing it.
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| Key | Description | Command |
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| ----- | ----------- | ------- |
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| `z`, `c` | Vertically center the line | `align_view_center` |
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| `t` | Align the line to the top of the screen | `align_view_top` |
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| `b` | Align the line to the bottom of the screen | `align_view_bottom` |
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| `m` | Align the line to the middle of the screen (horizontally) | `align_view_middle` |
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| `j`, `down` | Scroll the view downwards | `scroll_down` |
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| `k`, `up` | Scroll the view upwards | `scroll_up` |
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| `Ctrl-f`, `PageDown` | Move page down | `page_down` |
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| `Ctrl-b`, `PageUp` | Move page up | `page_up` |
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| `Ctrl-d` | Move half page down | `half_page_down` |
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| `Ctrl-u` | Move half page up | `half_page_up` |
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| Key | Description | Command |
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| ----- | ----------- | ------- |
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| `z`, `c` | Vertically center the line | `align_view_center` |
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| `t` | Align the line to the top of the screen | `align_view_top` |
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| `b` | Align the line to the bottom of the screen | `align_view_bottom` |
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| `m` | Align the line to the middle of the screen (horizontally) | `align_view_middle` |
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| `j`, `down` | Scroll the view downwards | `scroll_down` |
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| `k`, `up` | Scroll the view upwards | `scroll_up` |
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| `Ctrl-f`, `PageDown` | Move page down | `page_down` |
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| `Ctrl-b`, `PageUp` | Move page up | `page_up` |
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| `Ctrl-u` | Move cursor and page half page up | `page_cursor_half_up` |
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| `Ctrl-d` | Move cursor and page half page down | `page_cursor_half_down` |
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#### Goto mode
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@ -277,6 +277,10 @@ impl MappableCommand {
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page_down, "Move page down",
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half_page_up, "Move half page up",
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half_page_down, "Move half page down",
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page_cursor_up, "Move page and cursor up",
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page_cursor_down, "Move page and cursor down",
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page_cursor_half_up, "Move page and cursor half up",
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page_cursor_half_down, "Move page and cursor half down",
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select_all, "Select whole document",
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select_regex, "Select all regex matches inside selections",
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split_selection, "Split selections on regex matches",
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@ -1608,7 +1612,7 @@ fn switch_to_lowercase(cx: &mut Context) {
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});
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}
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pub fn scroll(cx: &mut Context, offset: usize, direction: Direction) {
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pub fn scroll(cx: &mut Context, offset: usize, direction: Direction, sync_cursor: bool) {
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use Direction::*;
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let config = cx.editor.config();
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let (view, doc) = current!(cx.editor);
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@ -1628,7 +1632,7 @@ pub fn scroll(cx: &mut Context, offset: usize, direction: Direction) {
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let doc_text = doc.text().slice(..);
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let viewport = view.inner_area(doc);
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let text_fmt = doc.text_format(viewport.width, None);
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let annotations = view.text_annotations(doc, None);
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let mut annotations = view.text_annotations(doc, None);
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(view.offset.anchor, view.offset.vertical_offset) = char_idx_at_visual_offset(
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doc_text,
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view.offset.anchor,
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@ -1638,6 +1642,30 @@ pub fn scroll(cx: &mut Context, offset: usize, direction: Direction) {
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&annotations,
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);
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if sync_cursor {
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let movement = match cx.editor.mode {
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Mode::Select => Movement::Extend,
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_ => Movement::Move,
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};
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// TODO: When inline diagnostics gets merged- 1. move_vertically_visual removes
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// line annotations/diagnostics so the cursor may jump further than the view.
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// 2. If the cursor lands on a complete line of virtual text, the cursor will
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// jump a different distance than the view.
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let selection = doc.selection(view.id).clone().transform(|range| {
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move_vertically_visual(
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doc_text,
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range,
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direction,
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offset.unsigned_abs(),
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movement,
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&text_fmt,
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&mut annotations,
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)
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});
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doc.set_selection(view.id, selection);
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return;
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}
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let mut head;
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match direction {
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Forward => {
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@ -1688,25 +1716,49 @@ pub fn scroll(cx: &mut Context, offset: usize, direction: Direction) {
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fn page_up(cx: &mut Context) {
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let view = view!(cx.editor);
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let offset = view.inner_height();
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scroll(cx, offset, Direction::Backward);
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scroll(cx, offset, Direction::Backward, false);
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}
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fn page_down(cx: &mut Context) {
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let view = view!(cx.editor);
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let offset = view.inner_height();
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scroll(cx, offset, Direction::Forward);
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scroll(cx, offset, Direction::Forward, false);
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}
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fn half_page_up(cx: &mut Context) {
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let view = view!(cx.editor);
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let offset = view.inner_height() / 2;
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scroll(cx, offset, Direction::Backward);
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scroll(cx, offset, Direction::Backward, false);
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}
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fn half_page_down(cx: &mut Context) {
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let view = view!(cx.editor);
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let offset = view.inner_height() / 2;
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scroll(cx, offset, Direction::Forward);
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scroll(cx, offset, Direction::Forward, false);
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}
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fn page_cursor_up(cx: &mut Context) {
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let view = view!(cx.editor);
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let offset = view.inner_height();
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scroll(cx, offset, Direction::Backward, true);
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}
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fn page_cursor_down(cx: &mut Context) {
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let view = view!(cx.editor);
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let offset = view.inner_height();
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scroll(cx, offset, Direction::Forward, true);
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}
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fn page_cursor_half_up(cx: &mut Context) {
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let view = view!(cx.editor);
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let offset = view.inner_height() / 2;
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scroll(cx, offset, Direction::Backward, true);
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}
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fn page_cursor_half_down(cx: &mut Context) {
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let view = view!(cx.editor);
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let offset = view.inner_height() / 2;
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scroll(cx, offset, Direction::Forward, true);
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}
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#[allow(deprecated)]
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@ -4856,11 +4908,11 @@ fn align_view_middle(cx: &mut Context) {
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}
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fn scroll_up(cx: &mut Context) {
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scroll(cx, cx.count(), Direction::Backward);
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scroll(cx, cx.count(), Direction::Backward, false);
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}
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fn scroll_down(cx: &mut Context) {
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scroll(cx, cx.count(), Direction::Forward);
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scroll(cx, cx.count(), Direction::Forward, false);
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}
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fn goto_ts_object_impl(cx: &mut Context, object: &'static str, direction: Direction) {
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@ -178,8 +178,8 @@ pub fn default() -> HashMap<Mode, KeyTrie> {
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"esc" => normal_mode,
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"C-b" | "pageup" => page_up,
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"C-f" | "pagedown" => page_down,
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"C-u" => half_page_up,
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"C-d" => half_page_down,
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"C-u" => page_cursor_half_up,
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"C-d" => page_cursor_half_down,
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"C-w" => { "Window"
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"C-w" | "w" => rotate_view,
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@ -287,8 +287,8 @@ pub fn default() -> HashMap<Mode, KeyTrie> {
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"j" | "down" => scroll_down,
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"C-b" | "pageup" => page_up,
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"C-f" | "pagedown" => page_down,
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"C-u" | "backspace" => half_page_up,
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"C-d" | "space" => half_page_down,
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"C-u" | "backspace" => page_cursor_half_up,
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"C-d" | "space" => page_cursor_half_down,
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"/" => search,
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"?" => rsearch,
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@ -304,8 +304,8 @@ pub fn default() -> HashMap<Mode, KeyTrie> {
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"j" | "down" => scroll_down,
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"C-b" | "pageup" => page_up,
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"C-f" | "pagedown" => page_down,
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"C-u" | "backspace" => half_page_up,
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"C-d" | "space" => half_page_down,
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"C-u" | "backspace" => page_cursor_half_up,
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"C-d" | "space" => page_cursor_half_down,
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"/" => search,
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"?" => rsearch,
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@ -1156,7 +1156,7 @@ impl EditorView {
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}
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let offset = config.scroll_lines.unsigned_abs();
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commands::scroll(cxt, offset, direction);
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commands::scroll(cxt, offset, direction, false);
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cxt.editor.tree.focus = current_view;
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cxt.editor.ensure_cursor_in_view(current_view);
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