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* fix(tui): cursor color in suckless terminal #32310uio232025-02-03
| | | | | | | | | | | | | Problem: 's 'guicursor' cursor color not working in suckless terminal (ST). Nvim's builtin terminfo for ST lacks a "Cs" entry, even though ST does support the cursor color to be set via termcodes. Solution: - In `augment_terminfo()`, assume that `st` always supports color cursor. - Thomas Dickey will add a "Cs" entry for st to ncurses, from which Nvim's builtin terminfos are generated. Co-authored-by: Justin M. Keyes <justinkz@gmail.com>
* feat(tui): handle kitty key events in libtermkey (#31727)Gregory Anders2024-12-31
| | | | | | Enable key event reporting in the kitty keyboard protocol. This causes supporting terminals to send key events for presses, repeats, and key releases. For now we ignore release events, but eventually we will support users mapping those.
* refactor: iwyu #31637Justin M. Keyes2024-12-23
| | | Result of `make iwyu` (after some "fixups").
* feat(terminal)!: cursor shape and blink (#31562)Gregory Anders2024-12-17
| | | | | | | | | | | | | | | | | | | | | When a terminal application running inside the terminal emulator sets the cursor shape or blink status of the cursor, update the cursor in the parent terminal to match. This removes the "virtual cursor" that has been in use by the terminal emulator since the beginning. The original rationale for using the virtual cursor was to avoid having to support additional UI methods to change the cursor color for other (non-TUI) UIs, instead relying on the TermCursor and TermCursorNC highlight groups. The TermCursor highlight group is now used in the default 'guicursor' value, which has a new entry for Terminal mode. However, the TermCursorNC highlight group is no longer supported: since terminal windows now use the real cursor, when the window is not focused there is no cursor displayed in the window at all, so there is nothing to highlight. Users can still use the StatusLineTermNC highlight group to differentiate non-focused terminal windows. BREAKING CHANGE: The TermCursorNC highlight group is no longer supported.
* feat(tui): update 'background' on theme change events (#31350)Gregory Anders2024-11-26
| | | | | | | | | | | | | Enabling private DEC mode 2031 tells the terminal to notify Nvim whenever the OS theme changes (i.e. light mode to dark mode or vice versa) or the terminal emulator's palette changes. When we receive one of these notifications we query the terminal color's background color again to see if it has changed and update the value of 'background' if it has. We only do this though if the user has not explicitly set the value of 'bg' themselves. The help text is updated slightly to hint to users that they probably shouldn't set this value: on modern terminal emulators Nvim is able to completely determine this automatically.
* fix(tui): also reset cursor color if it was invisible (#31348)Gregory Anders2024-11-25
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* fix(tui): only reset cursor color if it was changed (#31337)Gregory Anders2024-11-25
| | | | We already track this information so we might as well use it. This eliminates a bunch of unnecessary OSC sequences.
* fix(tui): avoid flushing buffer halfway an OSC 2 sequence (#30793)zeertzjq2024-10-15
| | | | | | Problem: Setting title while TUI buffer is almost full may cause the end of a flush to be treated as a part of an OSC 2 or OSC 0 sequence, leading to problems like invisible cursor. Solution: Make the whole sequence to set title a unibi_ext string.
* refactor(api)!: rename Dictionary => DictJustin M. Keyes2024-09-23
| | | | | | | | | | | | | | In the api_info() output: :new|put =map(filter(api_info().functions, '!has_key(v:val,''deprecated_since'')'), 'v:val') ... {'return_type': 'ArrayOf(Integer, 2)', 'name': 'nvim_win_get_position', 'method': v:true, 'parameters': [['Window', 'window']], 'since': 1} The `ArrayOf(Integer, 2)` return type didn't break clients when we added it, which is evidence that clients don't use the `return_type` field, thus renaming Dictionary => Dict in api_info() is not (in practice) a breaking change.
* feat(mbyte): support extended grapheme clusters including more emojibfredl2024-08-30
| | | | | | | | | Use the grapheme break algorithm from utf8proc to support grapheme clusters from recent unicode versions. Handle variant selector VS16 turning some codepoints into double-width emoji. This means we need to use ptr2cells rather than char2cells when possible.
* docs: misc (#29719)dundargoc2024-08-29
| | | | | | | | | Co-authored-by: Evgeni Chasnovski <evgeni.chasnovski@gmail.com> Co-authored-by: Lauri Heiskanen <lauri.heiskanen@nimble.fi> Co-authored-by: Piotr Doroszewski <5605596+Doroszewski@users.noreply.github.com> Co-authored-by: Tobiasz Laskowski <tobil4sk@outlook.com> Co-authored-by: ariel-lindemann <41641978+ariel-lindemann@users.noreply.github.com> Co-authored-by: glepnir <glephunter@gmail.com> Co-authored-by: zeertzjq <zeertzjq@outlook.com>
* fix(tui): reset active attr ID when OSC 8 sequence is terminated (#29960)Gregory Anders2024-08-02
| | | | | | | | | | | | When the cursor is moved we terminate any active OSC 8 sequences to prevent the sequence from inadvertently spanning regions it is not meant to span. However, if we do not also reset the TUI's active attr id (print_attr_id) then the TUI does not "know" that it's current attribute set has changed. When cursor_goto is called to wrap a line, the TUI does not recompute the attributes so the OSC 8 sequence is not restarted again. When we terminate an OSC 8 sequence before moving the cursor, also reset the active attr id so that the attributes are recomputed for URLs.
* fix(tui): set id parameter in OSC 8 sequences (#29840)Gregory Anders2024-07-24
| | | | | | | | | The id parameter is used to communicate to the terminal that two URLs are the same. Without an id, the terminal must rely on heuristics to determine which cells belong together to make a single hyperlink. See the relevant section in the spec [1] for more details. [1]: https://gist.github.com/egmontkob/eb114294efbcd5adb1944c9f3cb5feda#hover-underlining-and-the-id-parameter
* feat(tui): support in-band resize events (#29791)Gregory Anders2024-07-19
| | | | | | | | | DEC mode 2048 is a newly proposed private mode for sending resize events in band to applications from the terminal emulator, instead of relying on SIGWINCH. Full text of the specification is here: https://gist.github.com/rockorager/e695fb2924d36b2bcf1fff4a3704bd83
* docs: misc (#29410)dundargoc2024-07-05
| | | | Co-authored-by: Michael Härtl <haertl.mike@gmail.com> Co-authored-by: zeertzjq <zeertzjq@outlook.com>
* fix(tui): move $COLORTERM check to _defaults.lua (#29197)Gregory Anders2024-06-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | We currently check $COLORTERM in the TUI process to determine if the terminal supports 24 bit color (truecolor). If $COLORTERM is "truecolor" or "24bit" then we automatically assume that the terminal supports truecolor, but if $COLORTERM is set to any other value we still query the terminal. The `rgb` flag of the UI struct is a boolean which only indicates whether the UI supports truecolor, but does not have a 3rd state that we can use to represent "we don't know if the UI supports truecolor". We currently use `rgb=false` to represent this "we don't know" state, and we use XTGETTCAP and DECRQSS queries to determine at runtime if the terminal supports truecolor. However, if $COLORTERM is set to a value besides "truecolor" or "24bit" (e.g. "256" or "16) that is a clear indication that the terminal _does not_ support truecolor, so it is incorrect to treat `rgb=false` as "we don't know" in that case. Instead, in the TUI process we only check for the terminfo capabilities. This must be done in the TUI process because we do not have access to this information in the core Neovim process when `_defaults.lua` runs. If the TUI cannot determine truecolor support from terminfo alone, we set `rgb=false` to indicate "we don't know if the terminal supports truecolor yet, keep checking". When we get to `_defaults.lua`, we can then check $COLORTERM and only query the terminal if it is unset. This means that users can explicitly opt out of truecolor determination by setting `COLORTERM=256` (or similar) in their environment.
* fixup: apply the change on more filesJames Tirta Halim2024-06-04
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* fix(tui): reset clear_region attributes during startup #28713luukvbaal2024-05-26
| | | | | | Problem: Fix added in #28676 worked accidentally(used variables were themselves uninitialized at this point during startup) and does not always work. Solution: Reset attributes when clearing regions during startup.
* fix(tui): remove duplicate disabling of synchronized output (#28884)zeertzjq2024-05-21
| | | Synchronized output is enabled and disabled inside flush_buf().
* fix(tui): initialize clear attrs with current terminal backgroundLuuk van Baal2024-05-10
| | | | | | | Problem: Invalidated regions that are flushed during startup are cleared with unitialized "clear_attrs", which is perceived as flickering. Solution: Initialize "clear_attrs" with current terminal background color.
* fix(tui): disable DECRQM and DECRQSS queries for Terminal.app (#28453)Yoshimasa Niwa2024-04-23
| | | | | | | | | | | | | | | | | | | | | | **Problems** When launching Neovim on Terminal.app on macOS (Apple Terminal), it briefly shows like `p$qm+q5463;524742;73657472676266;73657472676262$qm` in orange background color partially on the screen. **Solution** Since Terminal.app seems not supporting DECRQM and DECRQSS queries, calling `tui_request_term_mode` and `tui_query_extended_underline` caused this unexpected output. Therefore, if we know it's Apple Terminal (when `nsterm` is `true`), don't call these checks. Tested on Terminal.app (2.14, 453) on macOS 14.4.1. Co-authored-by: zeertzjq <zeertzjq@outlook.com> Co-authored-by: Gregory Anders <greg@gpanders.com>
* fix(tui): make setcellwidths() work for non-ambiwidth chars (#28322)zeertzjq2024-04-14
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* fix(tui): don't set cursor color when there is none (#28236)Sam2024-04-09
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* test: skip another flaky test on macOS (#28087)zeertzjq2024-03-29
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* fix(tui): don't use DECRQSS in screen or tmux (#28086)zeertzjq2024-03-29
| | | They behave strangely when receiving that.
* feat(tui): query extended underline support using DECRQSS (#28052)zeertzjq2024-03-28
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* refactor(tui): reorder functions for query and response (#28051)zeertzjq2024-03-27
| | | | | | | - Group functions for key encoding together. - Move the handle_modereport() branch before the handle_unknown_csi() branch to match the order of the corresponding functions, but don't move handle_term_response() yet, as that will be subject to further changes (e.g. for #26744).
* feat(tui): support undercurl in WezTerm (#28037)zeertzjq2024-03-26
| | | | | Also fix some typos in windows.ti while at it. Close #21699
* fix(api): make open_win/win_set_config check if splitting allowedSean Dewar2024-03-08
| | | | | | | | | | Problem: splitting is disallowed in some cases to prevent the window layout changes while a window is closing, but it's not checked for. Solution: check for this, and set the API error message directly. (Also sneak in a change to tui.c that got lost from #27352; it's a char* buf, and the memset is assuming one byte each anyway)
* refactor(api): use arena for channel info and terminal infobfredl2024-02-18
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* fix(tui): `space_buf` overflow when clearing screen (#27352)Sean Dewar2024-02-06
| | | | | | | | | Problem: `tui->space_buf` may be smaller than the width of the TUI or widest grid, causing an overflow when calling `tui_grid_clear` if `print_spaces` is called from `clear_region` (clears the TUI's screen since #23428). Solution: resize `space_buf` to be wide enough to fit the TUI or widest grid. Didn't bother shrinking the allocation if the max widths decrease.
* docs: explain why TUI is reinitialized on resume (#27177)Gregory Anders2024-01-28
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* refactor: IWYU (#27186)zeertzjq2024-01-25
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* feat(ui): add support for OSC 8 hyperlinks (#27109)Gregory Anders2024-01-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Extmarks can contain URLs which can then be drawn in any supporting UI. In the TUI, for example, URLs are "drawn" by emitting the OSC 8 control sequence to the TTY. On terminals which support the OSC 8 sequence this will create clickable hyperlinks. URLs are treated as inline highlights in the decoration subsystem, so are included in the `DecorSignHighlight` structure. However, unlike other inline highlights they use allocated memory which must be freed, so they set the `ext` flag in `DecorInline` so that their lifetimes are managed along with other allocated memory like virtual text. The decoration subsystem then adds the URLs as a new highlight attribute. The highlight subsystem maintains a set of unique URLs to avoid duplicating allocations for the same string. To attach a URL to an existing highlight attribute we call `hl_add_url` which finds the URL in the set (allocating and adding it if it does not exist) and sets the `url` highlight attribute to the index of the URL in the set (using an index helps keep the size of the `HlAttrs` struct small). This has the potential to lead to an increase in highlight attributes if a URL is used over a range that contains many different highlight attributes, because now each existing attribute must be combined with the URL. In practice, however, URLs typically span a range containing a single highlight (e.g. link text in Markdown), so this is likely just a pathological edge case. When a new highlight attribute is defined with a URL it is copied to all attached UIs with the `hl_attr_define` UI event. The TUI manages its own set of URLs (just like the highlight subsystem) to minimize allocations. The TUI keeps track of which URL is "active" for the cell it is printing. If no URL is active and a cell containing a URL is printed, the opening OSC 8 sequence is emitted and that URL becomes the actively tracked URL. If the cursor is moved while in the middle of a URL span, we emit the terminating OSC sequence to prevent the hyperlink from spanning multiple lines. This does not support nested hyperlinks, but that is a rare (and, frankly, bizarre) use case. If a valid use case for nested hyperlinks ever presents itself we can address that issue then.
* feat(ui): add chdir UI event (#27093)Gregory Anders2024-01-19
| | | | | | When an embedded Nvim instance changes its current directory a "chdir" UI event is emitted. Attached UIs can use this information however they wish. In the TUI it is used to synchronize the cwd of the TUI process with the cwd of the embedded Nvim process.
* docs: various #25289Justin M. Keyes2024-01-18
| | | | | | Co-authored-by: Jongwook Choi <wookayin@gmail.com> Co-authored-by: Oliver Marriott <hello@omarriott.com> Co-authored-by: Benoit de Chezelles <bew@users.noreply.github.com> Co-authored-by: Jongwook Choi <wookayin@gmail.com>
* refactor(IWYU): fix headersdundargoc2024-01-11
| | | | | | Remove `export` pramgas from defs headers as it causes IWYU to believe that the definitions from the defs headers comes from main header, which is not what we really want.
* refactor: run IWYU on entire repodundargoc2023-12-21
| | | | Reference: https://github.com/neovim/neovim/issues/6371.
* refactor(IWYU): move decor provider types to decoration_defs.h (#26692)zeertzjq2023-12-21
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* docs: add style rule regarding initializationdundargoc2023-12-18
| | | | | Specifically, specify that each initialization should be done on a separate line.
* refactor: move non-symbols to defs.h headersdundargoc2023-12-17
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* fix(tui): don't use tui->params[] for 'termsync' (#26565)zeertzjq2023-12-14
| | | | | Problem: 'termsync' overwrites the first parameter of a format string when UNIBI_OUT() encounters an overflow. Solution: Don't use tui->params[] for 'termsync'.
* fix(tui): don't forget to update cursor visibility (#26523)zeertzjq2023-12-12
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* refactor(tui): use synchronized updates around actual buf flush (#26478)Gregory Anders2023-12-09
| | | | | | | | | | | | | Rather than writing the synchronized update begin and end sequences into the TUI's internal buffer (where it is later flushed to the TTY), write these sequences directly to the TTY before and after the TUI's internal buffer is itself flushed to the TTY. This guarantees that a synchronized update is always used when we are actually sending data to the TTY. This means we do not need to keep track of the TUI's "dirty" state (any sequences which affect the TUI state will be written in the TUI's internal buffer, which is now guaranteed to only ever be written when a synchronized update is active).
* fix(tui): start flush earlier (#26463)zeertzjq2023-12-08
| | | | | Problem: TUI flush (start sync or hide cursor) only starts on a "flush" event, which is too late. Solution: Start the next flush when anything will be drawn.
* fix(tui): use uv_timer_t instead of TimeWatcher for input (#26435)zeertzjq2023-12-07
| | | | | Avoid scheduling on main loop. Fix #26425
* feat(defaults): enable 'termguicolors' by default when supported by terminalGregory Anders2023-12-06
| | | | | | | | | | | | Enable 'termguicolors' automatically when Nvim can detect that truecolor is supported by the host terminal. If $COLORTERM is set to "truecolor" or "24bit", or the terminal's terminfo entry contains capabilities for Tc, RGB, or setrgbf and setrgbb, then we assume that the terminal supports truecolor. Otherwise, the terminal is queried (using both XTGETTCAP and SGR + DECRQSS). If the terminal's response to these queries (if any) indicates that it supports truecolor, then 'termguicolors' is enabled.
* refactor(IWYU): move UI and LineFlags to ui_defs.h (#26318)zeertzjq2023-11-30
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* build: don't define FUNC_ATTR_* as empty in headers (#26317)zeertzjq2023-11-30
| | | | | | FUNC_ATTR_* should only be used in .c files with generated headers. Defining FUNC_ATTR_* as empty in headers causes misuses of them to be silently ignored. Instead don't define them by default, and only define them as empty after a .c file has included its generated header.
* refactor: fix headers with IWYUdundargoc2023-11-28
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