Implement theme switcher
using telescope picker ask if want to change default theme, change value in user_config.lua load it as a telescope extension live preview of themes Co-authored-by: Galen Rowell <growell3@gmail.com>
This commit is contained in:
Akianonymus
Galen Rowell
parent
7affb8cbfb
commit
a6ab121d12
|
|
@ -67,6 +67,9 @@ telescope.setup(
|
|||
}
|
||||
)
|
||||
|
||||
-- load the theme_switcher extension
|
||||
require("telescope").load_extension("themes")
|
||||
|
||||
if
|
||||
not pcall(
|
||||
function()
|
||||
|
|
|
|||
|
|
@ -0,0 +1,185 @@
|
|||
-- This file can be loaded as a telescope extension
|
||||
local M = {}
|
||||
|
||||
-- reload themes without restarting vim
|
||||
-- if no theme name given then reload the current theme
|
||||
M.reload_theme = function(theme_name)
|
||||
local reload_plugin = require("utils").reload_plugin
|
||||
|
||||
-- if theme name is empty or nil, then reload the current theme
|
||||
if (theme_name == nil or theme_name == "") then
|
||||
theme_name = vim.g.nvchad_theme
|
||||
end
|
||||
|
||||
if not pcall(require, "themes/" .. theme_name) then
|
||||
error("No such theme ( " .. theme_name .. " )")
|
||||
end
|
||||
|
||||
vim.g.nvchad_theme = theme_name
|
||||
|
||||
-- reload the base16 theme
|
||||
local ok, base16 = pcall(require, "base16")
|
||||
if not ok then
|
||||
error("Error: Cannot load base16 plugin!")
|
||||
end
|
||||
base16(base16.themes[theme_name], true)
|
||||
|
||||
reload_plugin {
|
||||
"highlights",
|
||||
"plugins.bufferline",
|
||||
"galaxyline",
|
||||
"plugins.statusline"
|
||||
}
|
||||
|
||||
-- now send the provider info to actual refresh
|
||||
require("galaxyline.provider").async_load_providers:send()
|
||||
|
||||
return true
|
||||
-- open a buffer and close it to reload the statusline
|
||||
-- vim.cmd("new|bwipeout")
|
||||
-- commented out here as it will not work with telescope picker
|
||||
end
|
||||
|
||||
-- Custom theme picker
|
||||
-- Most of the code is copied from telescope colorscheme plugin, mostly for preview creation
|
||||
M.theme_switcher = function(opts)
|
||||
local pickers, finders, previewers, actions, action_state, utils, conf
|
||||
if pcall(require, "telescope") then
|
||||
pickers = require "telescope.pickers"
|
||||
finders = require "telescope.finders"
|
||||
previewers = require "telescope.previewers"
|
||||
|
||||
actions = require "telescope.actions"
|
||||
action_state = require "telescope.actions.state"
|
||||
utils = require "telescope.utils"
|
||||
conf = require("telescope.config").values
|
||||
else
|
||||
error "Cannot find telescope!"
|
||||
end
|
||||
|
||||
local local_utils = require "utils"
|
||||
local reload_theme = M.reload_theme
|
||||
|
||||
-- get a table of available themes
|
||||
local themes = local_utils.list_themes()
|
||||
if next(themes) ~= nil then
|
||||
-- save this to use it for later to restore if theme not changed
|
||||
local current_theme = vim.g.nvchad_theme
|
||||
local new_theme = ""
|
||||
local change = false
|
||||
|
||||
-- buffer number and name
|
||||
local bufnr = vim.api.nvim_get_current_buf()
|
||||
local bufname = vim.api.nvim_buf_get_name(bufnr)
|
||||
|
||||
local previewer
|
||||
|
||||
-- in case its not a normal buffer
|
||||
if vim.fn.buflisted(bufnr) ~= 1 then
|
||||
local deleted = false
|
||||
local function del_win(win_id)
|
||||
if win_id and vim.api.nvim_win_is_valid(win_id) then
|
||||
utils.buf_delete(vim.api.nvim_win_get_buf(win_id))
|
||||
pcall(vim.api.nvim_win_close, win_id, true)
|
||||
end
|
||||
end
|
||||
|
||||
previewer =
|
||||
previewers.new {
|
||||
preview_fn = function(_, entry, status)
|
||||
if not deleted then
|
||||
deleted = true
|
||||
del_win(status.preview_win)
|
||||
del_win(status.preview_border_win)
|
||||
end
|
||||
reload_theme(entry.value)
|
||||
end
|
||||
}
|
||||
else
|
||||
-- show current buffer content in previewer
|
||||
previewer =
|
||||
previewers.new_buffer_previewer {
|
||||
get_buffer_by_name = function()
|
||||
return bufname
|
||||
end,
|
||||
define_preview = function(self, entry)
|
||||
if vim.loop.fs_stat(bufname) then
|
||||
conf.buffer_previewer_maker(bufname, self.state.bufnr, {bufname = self.state.bufname})
|
||||
else
|
||||
local lines = vim.api.nvim_buf_get_lines(bufnr, 0, -1, false)
|
||||
vim.api.nvim_buf_set_lines(self.state.bufnr, 0, -1, false, lines)
|
||||
end
|
||||
reload_theme(entry.value)
|
||||
end
|
||||
}
|
||||
end
|
||||
|
||||
local picker =
|
||||
pickers.new(
|
||||
{
|
||||
prompt_title = "Set NvChad color",
|
||||
finder = finders.new_table(themes),
|
||||
previewer = previewer,
|
||||
sorter = conf.generic_sorter(opts),
|
||||
attach_mappings = function()
|
||||
actions.select_default:replace(
|
||||
-- if a entry is selected, change current_theme to that
|
||||
function(prompt_bufnr)
|
||||
local selection = action_state.get_selected_entry()
|
||||
new_theme = selection.value
|
||||
change = true
|
||||
actions.close(prompt_bufnr)
|
||||
end
|
||||
)
|
||||
return true
|
||||
end
|
||||
}
|
||||
)
|
||||
|
||||
-- rewrite picker.close_windows
|
||||
local close_windows = picker.close_windows
|
||||
picker.close_windows = function(status)
|
||||
close_windows(status)
|
||||
-- now apply the theme, if success, then ask for default theme change
|
||||
local final_theme
|
||||
if change then
|
||||
final_theme = new_theme
|
||||
else
|
||||
final_theme = current_theme
|
||||
end
|
||||
|
||||
if reload_theme(final_theme) then
|
||||
if change then
|
||||
-- ask for confirmation to set as default theme
|
||||
local ans = string.lower(vim.fn.input("Set " .. new_theme .. " as default theme ? [y/N] ")) == "y"
|
||||
if ans then
|
||||
local_utils.change_theme(current_theme, final_theme)
|
||||
else
|
||||
-- will be used in restoring nvchad theme var
|
||||
final_theme = current_theme
|
||||
end
|
||||
end
|
||||
-- open a buffer and close it to reload the statusline
|
||||
vim.cmd("new|bwipeout")
|
||||
end
|
||||
-- set nvchad_theme global var
|
||||
vim.g.nvchad_theme = current_theme
|
||||
end
|
||||
-- launch the telescope picker
|
||||
picker:find()
|
||||
else
|
||||
print("No themes found in " .. themes_folder)
|
||||
end
|
||||
end
|
||||
|
||||
-- register theme swticher as themes to telescope
|
||||
local present, telescope = pcall(require, "telescope")
|
||||
if present then
|
||||
return telescope.register_extension {
|
||||
exports = {
|
||||
themes = M.theme_switcher
|
||||
}
|
||||
}
|
||||
else
|
||||
error "Cannot find telescope!"
|
||||
end
|
||||
|
|
@ -1,9 +1,9 @@
|
|||
local chad_theme = require("user_config").ui.theme
|
||||
|
||||
vim.g.nvchad_theme = chad_theme
|
||||
local present2, base16 = pcall(require, "base16")
|
||||
local present, base16 = pcall(require, "base16")
|
||||
|
||||
if present2 then
|
||||
if present then
|
||||
base16(base16.themes[chad_theme], true)
|
||||
require "highlights"
|
||||
return true
|
||||
|
|
|
|||
|
|
@ -0,0 +1,96 @@
|
|||
local M = {}
|
||||
|
||||
-- reload a plugin ( will try to load even if not loaded)
|
||||
-- can take a string or list ( table )
|
||||
M.reload_plugin = function(plugins)
|
||||
local function _reload_plugin(plugin)
|
||||
local loaded = package.loaded[plugin]
|
||||
if loaded then
|
||||
package.loaded[plugin] = nil
|
||||
end
|
||||
if not pcall(require, plugin) then
|
||||
error("Error: Cannot load " .. plugin .. " plugin!")
|
||||
end
|
||||
end
|
||||
|
||||
if type(plugins) == "string" then
|
||||
_reload_plugin(plugins)
|
||||
elseif type(plugins) == "table" then
|
||||
for _, plugin in ipairs(plugins) do
|
||||
_reload_plugin(plugin)
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
-- return a table of available themes
|
||||
M.list_themes = function(return_type)
|
||||
local themes = {}
|
||||
-- folder where theme files are stored
|
||||
local themes_folder = vim.fn.stdpath("config") .. "/lua/themes"
|
||||
-- list all the contents of the folder and filter out files with .lua extension, then append to themes table
|
||||
local fd = vim.loop.fs_scandir(themes_folder)
|
||||
if fd then
|
||||
while true do
|
||||
local name, typ = vim.loop.fs_scandir_next(fd)
|
||||
if name == nil then
|
||||
break
|
||||
end
|
||||
if typ ~= "directory" and string.find(name, ".lua") then
|
||||
-- return the table values as keys if specified
|
||||
if return_type == "keys_as_value" then
|
||||
themes[vim.fn.fnamemodify(name, ":r")] = true
|
||||
else
|
||||
table.insert(themes, vim.fn.fnamemodify(name, ":r"))
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
return themes
|
||||
end
|
||||
|
||||
-- 1st arg - r or w
|
||||
-- 2nd arg - file path
|
||||
-- 3rd arg - content if 1st arg is w
|
||||
-- return file data on read, nothing on write
|
||||
M.file = function(mode, filepath, content)
|
||||
local data
|
||||
local fd = assert(vim.loop.fs_open(filepath, mode, 438))
|
||||
local stat = assert(vim.loop.fs_fstat(fd))
|
||||
if stat.type ~= "file" then
|
||||
data = false
|
||||
else
|
||||
if mode == "r" then
|
||||
data = assert(vim.loop.fs_read(fd, stat.size, 0))
|
||||
else
|
||||
assert(vim.loop.fs_write(fd, content, 0))
|
||||
data = true
|
||||
end
|
||||
end
|
||||
assert(vim.loop.fs_close(fd))
|
||||
return data
|
||||
end
|
||||
|
||||
-- 1st arg as current theme, 2nd as new theme
|
||||
M.change_theme = function(current_theme, new_theme)
|
||||
if current_theme == nil or new_theme == nil then
|
||||
error "Provide current and new theme name"
|
||||
end
|
||||
if current_theme == new_theme then
|
||||
return
|
||||
end
|
||||
|
||||
local file = vim.fn.stdpath("config") .. "/lua/user_config.lua"
|
||||
-- store in data variable
|
||||
local data = assert(M.file("r", file))
|
||||
local find = "theme = .?" .. current_theme .. ".?"
|
||||
local replace = 'theme = "' .. new_theme .. '"'
|
||||
local content = string.gsub(data, find, replace)
|
||||
-- see if the find string exists in file
|
||||
if content == data then
|
||||
error("Cannot change default theme with " .. new_theme .. ", edit " .. file .. " manually")
|
||||
else
|
||||
assert(M.file("w", file, content))
|
||||
end
|
||||
end
|
||||
|
||||
return M
|
||||
Loading…
Reference in New Issue