Implements the idea raised by @porridgewithraisins in this comment:
https://github.com/helix-editor/helix/issues/1125#issuecomment-3073782827
The implementation was modeled after the implementation of the autosave feature.
Here are some example snippets of configuration for this feature:
- disable auto-reloading (default)
```toml
[editor]
auto-reload = false
```
or
```toml
[editor.auto-reload]
focus-gained = false
```
- auto-reload on focus
```toml
[editor]
auto-reload = true
```
or
```toml
[editor.auto-reload]
focus-gained = true
```
- auto-reload at some periodically at time interval (5 seconds in this example)
```toml
[editor.auto-reload]
periodic.enable = true
periodic.interval = 5000
```
- of course, you could have it reload on focus and at an interval too:
```toml
[editor.auto-reload]
focus-gained = true
periodic.enable = true
periodic.interval = 5000
```
Since tree-house is young and we've seen a few bugs that make it go
backwards, we should handle this case gracefully and just give up on
syntax highlighting with an error log.
The prompt was previously assuming that each grapheme cluster in the
line was single-width and single-byte. Lines like the one in the new
integration test would cause panics because the anchor attempted to
slice into a character.
This change rewrites the anchor and truncation code in the prompt to
account for Unicode segmentation and width. Now multi-width graphemes
can be hidden by multiple consecutive elipses - for example "十" is
hidden by "……" (2-width).
Co-authored-by: Narazaki, Shuji <shujinarazaki@protonmail.com>
This fixes a regression from the refactor of the highlighters when
switching to tree-house. The old `StyleIter` used `renderer.text_style`
as the base style rather than `Style::default()` for syntax highlights.
The result was that any text not captured by a syntax highlight query
was styled with no foreground or background, defaulting to the
terminal's foreground/background. This could cause text in markdown
files to look off-colored depending on your terminal configuration.
(Though you wouldn't notice if your 'ui.text' theming matches your
terminal's theming.)
Previously the statusline `write` function only accepted a string
and optional Style, so all rendering functions converted text to
strings. Some elements write spans with `&'static str`s, however, making
this unnecessary since `Span<'a>` is a wrapper around `Cow<'a, str>` and
style, and a `Span<'static>` would outlive all required lifetimes.
Moreover many elements could produce `Span<'a>` according to the
lifetime in `RenderContext` in the future, potentially re-borrowing from
the Editor borrow, so this change could save allocations for many
file-type elements (with more future changes). This is not explored in
this patch since the statusline functions currently add bespoke padding
per-element, but with a future refactor to make spacing consistent this
could be possible.
This change refactors the write function to accept a `Span<'a>` and
rewrites some related code to fit the codebase better (preferring `for`
to iterator's `for_each` for example). The new code is more complicated
lifetime-wise but avoids allocations in these cases:
* spacer for mode name when a pane is not focused
* LSP spinner frames
* '●' (workspace) diagnostic indicators
* " W " workspace diagnostic prefix
* file modification indicators
* read-only indicators
* spacer element
... and opens the door to avoid allocation for file name elements in the
future.
If you configure a subset of severities to show in the workspace
diagnostics statusline element you can see the 'W' (and surrounding
space) without any diagnostic indicators. This is the case by default
as it's configured to show warnings and errors only - if you have only
hints in your workspace like if you open `application.rs` in Helix for
example then you would see the 'W' and no indicators.
This change checks that any of the configured diagnostics are non-zero
and bails early if there are none.
This type also exists on `Editor`. This change brings it to the
`Document` as well because the replacement for `Syntax` in the child
commits will eliminate `Syntax`'s copy of `syn_loader`. `Syntax` will
also be responsible for returning the highlighter and query iterators
(which will borrow the loader), so the loader must be separated from
that type.
In the long run, when we make a larger refactor to have
`Document::apply` be a function of the `Editor` instead of the
`Document`, we will be able to drop this field on `Document` - it is
currently only necessary for `Document::apply`. Once we make that
refactor, we will be able to eliminate the surrounding `Arc` in
`Arc<ArcSwap<syntax::Loader>>` and use the `ArcSwap` directly instead.
Render rulers before the cursor to ensure that the cursor, when over
a ruler, is not hidden from view. Without this, you typically end up
with 1) foreground text that is the same as the background if the
ruler doesn't already have a foreground and 2) no visible cursor,
because the ruler's background color took precedence. By moving the
rulers before the cursor, this ensures that the theme is still rendered
more or less the way one would visually expect things to turn out.
`:lsp-stop` should consider only the set of active language servers for
a document. `:lsp-restart` though may be used to start up a language
server that crashed or was manually stopped, so it needs to consider the
language servers in config instead.
This change inlines the `valid_lang_servers` function into `:lsp-stop`
and `:lsp-restart` and changes `:lsp-restart` to check the doc's config
rather than active language servers. `:lsp-restart` now also does not
need to clone the language server names as strings since it borrows from
the config and arguments rather than `Document`. The completer has also
been split into two - one matching active language servers, used by
`:lsp-stop`, and the other matching configured language servers, used by
`:lsp-restart`.
This also removes the part of `:lsp-restart` which bailed if a language
server failed to be restarted (for example because it is not installed).
There might be multiple language servers configured for a language and
only one installed. In that case the `:lsp-restart` should be considered
successful even if not all servers could be started. Bailing prevented
any language servers which could start from being attached to the
document. Instead errors are collected and emitted at the end.
Path completion items always have documentation but future core (i.e.
non-LSP) completions may not always have documentation - for example
word completion from the current buffer.
This simplifies the hover component by eagerly converting all
`lsp::Hover` responses into `Markdown`s. Previously we cached the
current `Markdown` and created a new `Markdown` when switching the
active response. Instead we can consume the `lsp::Hover` and avoid some
clones of its inner types.
The Hover component is used as the inner contents of a Popup. The Popup
should be doing calculations based on whether popup_borders is
configured and not Hover. This fixes an issue with hover rendering when
the popup border option is enabled for popups.
Fixes#12742
The new `RopeSliceExt::ceil_char_boundary` from the parent commits can
be used to implement `RopeSliceExt::byte_to_next_char` when used with
`RopeSlice::byte_to_char`. That function had only one caller and that
caller will eventually disappear when we switch to Ropey v2 and drop
character indexing, so we can drop `byte_to_next_char` now and replace
its caller with `byte_to_char` plus `ceil_char_boundary`.
This change keeps the unit tests for `byte_to_next_char` and checks them
against a polyfill of `byte_to_char` plus `ceil_char_boundary` to ensure
that `byte_to_next_char`'s intended behavior is not changed.
Instantiating EditorView is a lot of machinery which is unnecessary:
the default keymap is exposed through the `default` function in the
keymap module.
Anthony Rubick
Alexander Meinhardt Scheurer-Volkmann
Michael Davis
Jonas Köhnen
Erasin Wang
CalebLarsen
Rock Boynton
RoloEdits
Sumandora
Noel Cower
Roberto Vidal
Harishankar G
Nikita Revenco
Pascal Kuthe
kyfanc
Denys Rybalka
Yomain
Jose Alvarez
Nikita Revenco
Takumi Matsuura