nvim-tree.lua/lua/nvim-tree/renderer.lua

351 lines
11 KiB
Lua

local config = require'nvim-tree.config'
local utils = require'nvim-tree.utils'
local api = vim.api
local lines = {}
local hl = {}
local index = 0
local namespace_id = api.nvim_create_namespace('NvimTreeHighlights')
local icon_state = config.get_icon_state()
local get_folder_icon = function() return "" end
local function get_trailing_length()
return vim.g.nvim_tree_add_trailing and 1 or 0
end
local set_folder_hl = function(line, depth, git_icon_len, _, hl_group)
table.insert(hl, {hl_group, line, depth+git_icon_len+get_trailing_length(), -1})
end
if icon_state.show_folder_icon then
get_folder_icon = function(open, is_symlink, has_children)
local n = ""
if is_symlink and open then
n = icon_state.icons.folder_icons.symlink_open
elseif is_symlink then
n = icon_state.icons.folder_icons.symlink
elseif open then
if has_children then
n = icon_state.icons.folder_icons.open
else
n = icon_state.icons.folder_icons.empty_open
end
else
if has_children then
n = icon_state.icons.folder_icons.default
else
n = icon_state.icons.folder_icons.empty
end
end
return n.." "
end
set_folder_hl = function(line, depth, icon_len, name_len, hl_group)
table.insert(hl, {hl_group, line, depth+icon_len, depth+icon_len+name_len+get_trailing_length()})
table.insert(hl, {'NvimTreeFolderIcon', line, depth, depth+icon_len})
end
end
local get_file_icon = function() return icon_state.icons.default end
if icon_state.show_file_icon then
local web_devicons = require'nvim-web-devicons'
get_file_icon = function(fname, extension, line, depth)
local icon, hl_group = web_devicons.get_icon(fname, extension)
if icon then
if hl_group then
table.insert(hl, { hl_group, line, depth, depth + #icon + 1 })
end
return icon.." "
else
return #icon_state.icons.default > 0 and icon_state.icons.default.." " or ""
end
end
end
local get_symlink_icon = function() return icon_state.icons.symlink end
if icon_state.show_file_icon then
get_symlink_icon = function()
return #icon_state.icons.symlink > 0 and icon_state.icons.symlink.." " or ""
end
end
local get_special_icon = function() return icon_state.icons.default end
if icon_state.show_file_icon then
get_special_icon = function()
return #icon_state.icons.default > 0 and icon_state.icons.default.." " or ""
end
end
local get_git_icons = function() return "" end
local get_git_hl = function() return end
if vim.g.nvim_tree_git_hl == 1 then
local git_hl = {
["M "] = { { hl = "NvimTreeFileStaged" } },
[" M"] = { { hl = "NvimTreeFileDirty" } },
["MM"] = {
{ hl = "NvimTreeFileStaged" },
{ hl = "NvimTreeFileDirty" }
},
["A "] = {
{ hl = "NvimTreeFileStaged" },
{ hl = "NvimTreeFileNew" }
},
["AD"] = {
{ hl = "NvimTreeFileStaged" },
{ hl = "NvimTreeFileDeleted" }
},
["AM"] = {
{ hl = "NvimTreeFileStaged" },
{ hl = "NvimTreeFileNew" },
{ hl = "NvimTreeFileDirty" }
},
["??"] = { { hl = "NvimTreeFileNew" } },
["R "] = { { hl = "NvimTreeFileRenamed" } },
["UU"] = { { hl = "NvimTreeFileMerge" } },
[" D"] = { { hl = "NvimTreeFileDeleted" } },
["D "] = {
{ hl = "NvimTreeFileDeleted" },
{ hl = "NvimTreeFileStaged" }
},
[" A"] = { { hl = "none" } },
["RM"] = { { hl = "NvimTreeFileRenamed" } },
dirty = { { hl = "NvimTreeFileDirty" } },
ignored = { { hl = "NvimTreeGitIgnored" } },
}
get_git_hl = function(node)
local git_status = node.git_status
if not git_status then return end
local icons = git_hl[git_status]
if icons == nil then
utils.echo_warning('Unrecognized git state "'..git_status..'". Please open up an issue on https://github.com/kyazdani42/nvim-tree.lua/issues with this message.')
icons = git_hl.dirty
end
-- TODO: how would we determine hl color when multiple git status are active ?
return icons[1].hl
-- return icons[#icons].hl
end
end
if icon_state.show_git_icon then
local git_icon_state = {
["M "] = { { icon = icon_state.icons.git_icons.staged, hl = "NvimTreeGitStaged" } },
[" M"] = { { icon = icon_state.icons.git_icons.unstaged, hl = "NvimTreeGitDirty" } },
["MM"] = {
{ icon = icon_state.icons.git_icons.staged, hl = "NvimTreeGitStaged" },
{ icon = icon_state.icons.git_icons.unstaged, hl = "NvimTreeGitDirty" }
},
["A "] = {
{ icon = icon_state.icons.git_icons.staged, hl = "NvimTreeGitStaged" },
{ icon = icon_state.icons.git_icons.untracked, hl = "NvimTreeGitNew" }
},
[" A"] = {
{ icon = icon_state.icons.git_icons.untracked, hl = "NvimTreeGitNew" },
},
["AM"] = {
{ icon = icon_state.icons.git_icons.staged, hl = "NvimTreeGitStaged" },
{ icon = icon_state.icons.git_icons.untracked, hl = "NvimTreeGitNew" },
{ icon = icon_state.icons.git_icons.unstaged, hl = "NvimTreeGitDirty" }
},
["??"] = { { icon = icon_state.icons.git_icons.untracked, hl = "NvimTreeGitDirty" } },
["R "] = { { icon = icon_state.icons.git_icons.renamed, hl = "NvimTreeGitRenamed" } },
["RM"] = {
{ icon = icon_state.icons.git_icons.unstaged, hl = "NvimTreeGitDirty" },
{ icon = icon_state.icons.git_icons.renamed, hl = "NvimTreeGitRenamed" },
},
["UU"] = { { icon = icon_state.icons.git_icons.unmerged, hl = "NvimTreeGitMerge" } },
[" D"] = { { icon = icon_state.icons.git_icons.deleted, hl = "NvimTreeGitDeleted" } },
["D "] = { { icon = icon_state.icons.git_icons.deleted, hl = "NvimTreeGitDeleted" } },
dirty = { { icon = icon_state.icons.git_icons.unstaged, hl = "NvimTreeGitDirty" } },
ignored = { { icon = icon_state.icons.git_icons.ignored, hl = "NvimTreeGitIgnored" } },
}
get_git_icons = function(node, line, depth, icon_len)
local git_status = node.git_status
if not git_status then return "" end
local icon = ""
local icons = git_icon_state[git_status]
if not icons then
if vim.g.nvim_tree_git_hl ~= 1 then
utils.echo_warning('Unrecognized git state "'..git_status..'". Please open up an issue on https://github.com/kyazdani42/nvim-tree.lua/issues with this message.')
end
icons = git_icon_state.dirty
end
for _, v in ipairs(icons) do
table.insert(hl, { v.hl, line, depth+icon_len+#icon, depth+icon_len+#icon+#v.icon })
icon = icon..v.icon.." "
end
return icon
end
end
local get_padding = function(depth)
return string.rep(' ', depth)
end
if vim.g.nvim_tree_indent_markers == 1 then
get_padding = function(depth, idx, tree, _, markers)
local padding = ""
if depth ~= 0 then
local rdepth = depth/2
markers[rdepth] = idx ~= #tree.entries
for i=1,rdepth do
if idx == #tree.entries and i == rdepth then
padding = padding..''
elseif markers[i] then
padding = padding..''
else
padding = padding..' '
end
end
end
return padding
end
end
local picture = {
jpg = true,
jpeg = true,
png = true,
gif = true,
}
local special = {
["Cargo.toml"] = true,
Makefile = true,
["README.md"] = true,
["readme.md"] = true,
}
local root_folder_modifier = vim.g.nvim_tree_root_folder_modifier or ':~'
local function update_draw_data(tree, depth, markers)
if tree.cwd and tree.cwd ~= '/' then
local root_name = utils.path_join({
utils.path_remove_trailing(vim.fn.fnamemodify(tree.cwd, root_folder_modifier)),
".."
})
table.insert(lines, root_name)
table.insert(hl, {'NvimTreeRootFolder', index, 0, string.len(root_name)})
index = 1
end
for idx, node in ipairs(tree.entries) do
local padding = get_padding(depth, idx, tree, node, markers)
local offset = string.len(padding)
if depth > 0 then
table.insert(hl, { 'NvimTreeIndentMarker', index, 0, offset })
end
local git_hl = get_git_hl(node)
if node.entries then
local has_children = #node.entries ~= 0 or node.has_children
local icon = get_folder_icon(node.open, node.link_to ~= nil, has_children)
local git_icon = get_git_icons(node, index, offset, #icon+1) or ""
-- INFO: this is mandatory in order to keep gui attributes (bold/italics)
local folder_hl = "NvimTreeFolderName"
local name = node.name
local next = node.group_next
while next do
name = name .. "/" .. next.name
next = next.group_next
end
if not has_children then folder_hl = "NvimTreeEmptyFolderName" end
if node.open then folder_hl = "NvimTreeOpenedFolderName" end
set_folder_hl(index, offset, #icon, #name+#git_icon, folder_hl)
if git_hl then
set_folder_hl(index, offset, #icon, #name+#git_icon, git_hl)
end
index = index + 1
if node.open then
table.insert(lines, padding..icon..git_icon..name..(vim.g.nvim_tree_add_trailing == 1 and '/' or ''))
update_draw_data(node, depth + 2, markers)
else
table.insert(lines, padding..icon..git_icon..name..(vim.g.nvim_tree_add_trailing == 1 and '/' or ''))
end
elseif node.link_to then
local icon = get_symlink_icon()
local link_hl = git_hl or 'NvimTreeSymlink'
table.insert(hl, { link_hl, index, offset, -1 })
table.insert(lines, padding..icon..node.name..""..node.link_to)
index = index + 1
else
local icon
local git_icons
if special[node.name] then
icon = get_special_icon()
git_icons = get_git_icons(node, index, offset, 0)
table.insert(hl, {'NvimTreeSpecialFile', index, offset+#git_icons, -1})
else
icon = get_file_icon(node.name, node.extension, index, offset)
git_icons = get_git_icons(node, index, offset, #icon)
end
table.insert(lines, padding..icon..git_icons..node.name)
if node.executable then
table.insert(hl, {'NvimTreeExecFile', index, offset+#icon+#git_icons, -1 })
elseif picture[node.extension] then
table.insert(hl, {'NvimTreeImageFile', index, offset+#icon+#git_icons, -1 })
end
if vim.g.nvim_tree_highlight_opened_files then
if vim.fn.bufloaded(node.absolute_path) > 0 then
table.insert(hl, {'NvimTreeOpenedFile', index, offset, offset+#icon })
end
end
if git_hl then
table.insert(hl, {git_hl, index, offset+#icon+#git_icons, -1 })
end
index = index + 1
end
end
end
local M = {}
local function is_bufnr_valid(bufnr)
return vim.fn.bufexists(bufnr) == 1 and vim.fn.bufloaded(bufnr) == 1
end
function M.draw(tree, reload)
if not is_bufnr_valid(tree.bufnr) then return end
api.nvim_buf_set_option(tree.bufnr, 'modifiable', true)
local cursor = api.nvim_win_get_cursor(tree.winnr())
if reload then
index = 0
lines = {}
hl = {}
update_draw_data(tree, 0, {})
end
api.nvim_buf_set_lines(tree.bufnr, 0, -1, false, lines)
M.render_hl(tree.bufnr)
if #lines >= cursor[1] then
api.nvim_win_set_cursor(tree.winnr(), cursor)
end
api.nvim_buf_set_option(tree.bufnr, 'modifiable', false)
api.nvim_win_set_option(tree.winnr(), 'wrap', false)
end
function M.render_hl(bufnr)
if not is_bufnr_valid(bufnr) then return end
api.nvim_buf_clear_namespace(bufnr, namespace_id, 0, -1)
for _, data in ipairs(hl) do
api.nvim_buf_add_highlight(bufnr, namespace_id, data[1], data[2], data[3], data[4])
end
end
return M