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-- mod-version:3
local core = require "core"
local config = require "core.config"
local command = require "core.command"
local common = require "core.common"
local DocView = require "core.docview"
config.plugins.autowrap = common.merge({
enabled = false,
files = { "%.md$", "%.txt$" },
-- The config specification used by the settings gui
config_spec = {
name = "Auto Wrap",
{
label = "Enable",
description = "Activates text auto wrapping by default.",
path = "enabled",
type = "toggle",
default = false
},
{
label = "Files",
description = "List of Lua patterns matching files to auto wrap.",
path = "files",
type = "list_strings",
default = { "%.md$", "%.txt$" },
}
}
}, config.plugins.autowrap)
local on_text_input = DocView.on_text_input
DocView.on_text_input = function(self, ...)
on_text_input(self, ...)
if not config.plugins.autowrap.enabled then return end
-- early-exit if the filename does not match a file type pattern
local filename = self.doc.filename or ""
local matched = false
for _, ptn in ipairs(config.plugins.autowrap.files) do
if filename:match(ptn) then
matched = true
break
end
end
if not matched then return end
-- do automatic reflow on line if we're typing at the end of the line and have
-- reached the line limit
local line, col = self.doc:get_selection()
local text = self.doc:get_text(line, 1, line, math.huge)
if #text >= config.line_limit and col > #text then
command.perform("doc:select-lines")
command.perform("reflow:reflow")
command.perform("doc:move-to-next-char")
command.perform("doc:move-to-end-of-line")
end
end
command.add(nil, {
["auto-wrap:toggle"] = function()
config.plugins.autowrap.enabled = not config.plugins.autowrap.enabled
if config.plugins.autowrap.enabled then
core.log("Auto wrap: on")
else
core.log("Auto wrap: off")
end
end
})
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