54 lines
1.9 KiB
Lua
54 lines
1.9 KiB
Lua
--- Utility functions for debouncing and validating colorschemes.
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-- @module util
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local M = {}
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--- Debounces a function call. This is useful to prevent a function from
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-- being called too frequently, delaying its execution until after a certain
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-- amount of time has elapsed since the last time it was invoked.
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-- @param func function The function to debounce.
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-- @param delay number The time delay in milliseconds.
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-- @return function A new debounced function.
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function M.debounce(func, delay)
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assert(type(func) == "function", "Invalid argument 'func': function expected")
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assert(type(delay) == "number", "Invalid argument 'delay': number expected")
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local timer = nil
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return function(...)
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local args = { ... } -- Capture any arguments passed to the function.
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if timer then
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timer:stop() -- Stop any existing timer.
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timer:close() -- Clean up the timer resources.
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end
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-- Create a new timer.
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local uv = vim.uv or vim.loop
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timer = uv.new_timer()
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-- Start the timer with the specified delay.
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timer:start(
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delay,
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0,
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vim.schedule_wrap(function()
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func(unpack(args)) -- Call the original function with the captured arguments.
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timer:stop() -- Stop the timer.
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timer:close() -- Clean up the timer resources.
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timer = nil -- Clear the timer variable.
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end)
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)
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end
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end
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--- Validates whether the provided colorscheme name is available in Neovim.
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-- This function checks against the list of valid colorschemes that Neovim knows about.
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-- @param colorscheme string The colorscheme name to validate.
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-- @return boolean True if the colorscheme is valid, false otherwise.
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function M.is_colorscheme_valid(colorscheme)
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assert(type(colorscheme) == "string", "Invalid argument 'colorscheme': string expected")
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-- Check if the colorscheme exists in the list of completions for "color".
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return vim.tbl_contains(vim.fn.getcompletion("", "color"), colorscheme)
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end
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return M
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