107 lines
2.7 KiB
Lua
107 lines
2.7 KiB
Lua
local parser = require 'symbols-outline.parser'
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local config = require 'symbols-outline.config'
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local ui = require 'symbols-outline.ui'
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local M = {}
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local function is_buffer_outline(bufnr)
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local isValid = vim.api.nvim_buf_is_valid(bufnr)
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local name = vim.api.nvim_buf_get_name(bufnr)
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local ft = vim.api.nvim_buf_get_option(bufnr, 'filetype')
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return string.match(name, 'OUTLINE') ~= nil and ft == 'Outline' and isValid
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end
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local hlns = vim.api.nvim_create_namespace 'symbols-outline-icon-highlight'
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function M.write_outline(bufnr, lines)
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if not is_buffer_outline(bufnr) then
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return
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end
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lines = vim.tbl_map(function(line)
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lines, _ = string.gsub(line, "\n", " ")
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return lines
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end, lines)
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vim.api.nvim_buf_set_option(bufnr, 'modifiable', true)
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vim.api.nvim_buf_set_lines(bufnr, 0, -1, false, lines)
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vim.api.nvim_buf_set_option(bufnr, 'modifiable', false)
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end
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function M.add_highlights(bufnr, hl_info, nodes)
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for _, line_hl in ipairs(hl_info) do
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local line, hl_start, hl_end, hl_type = unpack(line_hl)
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vim.api.nvim_buf_add_highlight(
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bufnr,
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hlns,
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hl_type,
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line - 1,
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hl_start,
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hl_end
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)
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end
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M.add_hover_highlights(bufnr, nodes)
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end
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local ns = vim.api.nvim_create_namespace 'symbols-outline-virt-text'
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function M.write_details(bufnr, lines)
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if not is_buffer_outline(bufnr) then
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return
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end
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if not config.options.show_symbol_details then
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return
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end
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for index, value in ipairs(lines) do
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vim.api.nvim_buf_set_extmark(bufnr, ns, index - 1, -1, {
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virt_text = { { value, 'Comment' } },
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virt_text_pos = 'eol',
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hl_mode = 'combine',
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})
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end
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end
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local function clear_virt_text(bufnr)
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vim.api.nvim_buf_clear_namespace(bufnr, -1, 0, -1)
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end
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M.add_hover_highlights = function(bufnr, nodes)
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if not config.options.highlight_hovered_item then
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return
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end
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-- clear old highlight
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ui.clear_hover_highlight(bufnr)
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for _, node in ipairs(nodes) do
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if not node.hovered then
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goto continue
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end
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local marker_fac = (config.options.fold_markers and 1) or 0
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if node.prefix_length then
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ui.add_hover_highlight(
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bufnr,
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node.line_in_outline - 1,
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node.prefix_length
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)
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end
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::continue::
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end
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end
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-- runs the whole writing routine where the text is cleared, new data is parsed
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-- and then written
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function M.parse_and_write(bufnr, flattened_outline_items)
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local lines, hl_info = parser.get_lines(flattened_outline_items)
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M.write_outline(bufnr, lines)
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clear_virt_text(bufnr)
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local details = parser.get_details(flattened_outline_items)
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M.add_highlights(bufnr, hl_info, flattened_outline_items)
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M.write_details(bufnr, details)
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end
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return M
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