Add configuration to enable color invert (#17)

* Added config option for inverting colors * Updated docs and readme to match new config option * single quote in documentation --------- Co-authored-by: chomosuke <[email protected]>
chomosuke · Jan 29, 2024 · b0fed1d · b0fed1d
1 parent 38f125e
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diff --git a/README.md b/README.md
@@ -63,7 +63,7 @@ Plug 'chomosuke/typst-preview.nvim', {'tag': 'v0.1.*', do: ':TypstPreviewUpdate'
   - Don't scroll preview as cursor moves.
 - `:TypstPreviewFollowCursorToggle` or
   `require 'typst-preview'.set_follow_cursor(not init.get_follow_cursor())`.
-- `:TypstPreviewSyncCursor` or `require 'typst-preview.sync_with_cursor()`:
+- `:TypstPreviewSyncCursor` or `require 'typst-preview'.sync_with_cursor()`:
   - Scroll preview to the current cursor position. This can be used in combination with
     `:TypstPreviewNoFollowCursor` so that the preview only scroll to the current cursor position
     when you want it to.
@@ -83,6 +83,11 @@ require 'typst-preview'.setup {
   -- Example: open_cmd = 'firefox %s -P typst-preview --class typst-preview'
   open_cmd = nil,
 
+  -- Setting this to 'always' will invert black and white in the preview
+  -- Setting this to 'auto' will invert depending if the browser has enable
+  -- dark mode
+  invert_colors = 'never',
+
   -- This function will be called to determine the root of the typst project
   get_root = function(bufnr_of_typst_buffer)
     return vim.fn.getcwd()

diff --git a/doc/typst-preview.nvim.txt b/doc/typst-preview.nvim.txt
@@ -115,6 +115,13 @@ Provide a custom format string to open the output link in `%s`.
 Example value for open_cmd: `'firefox %s -P typst-preview --class typst-preview'`.
   Type: `string`, Default: `nil`
 
+*typst-preview.invert_colors*
+Can be used to invert colors in preview.
+Set to `'never'` to disable.
+Set to `'always'` to enable.
+Set to `'auto'` to enable if environment (usually browser) has enabled darkmode.
+  Type: `string`, Default: `'never'`
+
 *typst-preview.get_root*
 This function will be called to determine the root of the typst project
 

diff --git a/lua/typst-preview/config.lua b/lua/typst-preview/config.lua
@@ -1,6 +1,7 @@
 local M = {
   opts = {
     open_cmd = nil,
+    invert_colors = 'never',
     debug = false,
     get_root = function(_)
       return vim.fn.getcwd()

diff --git a/lua/typst-preview/server.lua b/lua/typst-preview/server.lua
@@ -30,6 +30,8 @@ function M.spawn(bufnr, callback, set_link)
   local server_handle, _ =
     assert(vim.loop.spawn(utils.get_data_path() .. fetch.get_typst_bin_name(), {
       args = {
+        '--invert-colors',
+        config.opts.invert_colors,
         '--no-open',
         '--data-plane-host',
         '127.0.0.1:0',