Files
telescope.nvim/lua/telescope/previewers/previewer.lua
2020-12-19 16:45:02 +01:00

56 lines
1.1 KiB
Lua

local Previewer = {}
Previewer.__index = Previewer
function Previewer:new(opts)
opts = opts or {}
return setmetatable({
state = nil,
_setup_func = opts.setup,
_teardown_func = opts.teardown,
_send_input = opts.send_input,
_scroll_fn = opts.scroll_fn,
preview_fn = opts.preview_fn,
}, Previewer)
end
function Previewer:preview(entry, status)
if not entry then
return
end
if not self.state then
if self._setup_func then
self.state = self:_setup_func()
else
self.state = {}
end
end
return self:preview_fn(entry, status)
end
function Previewer:teardown()
if self._teardown_func then
self:_teardown_func()
end
end
function Previewer:send_input(input)
if self._send_input then
self:_send_input(input)
else
vim.api.nvim_err_writeln("send_input is not defined for this previewer")
end
end
function Previewer:scroll_fn(direction)
if self._scroll_fn then
self:_scroll_fn(direction)
else
vim.api.nvim_err_writeln("scroll_fn is not defined for this previewer")
end
end
return Previewer