v4k-git-backup/engine/art/editor/lite/data/plugins/treeview.lua

295 lines
7.4 KiB
Lua

local core = require "core"
local common = require "core.common"
local command = require "core.command"
local config = require "core.config"
local keymap = require "core.keymap"
local style = require "core.style"
local View = require "core.view"
config.treeview_size = 200 * SCALE
local function get_depth(filename)
local n = 0
for sep in filename:gmatch("[\\/]") do
n = n + 1
end
return n
end
local TreeView = View:extend()
function TreeView:new()
TreeView.super.new(self)
self.scrollable = true
self.visible = false --< @r-lyeh true>false
self.init_size = true
self.cache = {}
end
function TreeView:get_cached(item)
local t = self.cache[item.filename]
if not t then
t = {}
t.filename = item.filename
t.abs_filename = system.absolute_path(item.filename)
t.name = t.filename:match("[^\\/]+$")
t.depth = get_depth(t.filename)
t.type = item.type
self.cache[t.filename] = t
end
return t
end
function TreeView:get_name()
return "Project"
end
function TreeView:get_item_height()
return style.font:get_height() + style.padding.y
end
function TreeView:check_cache()
-- invalidate cache's skip values if project_files has changed
if core.project_files ~= self.last_project_files then
for _, v in pairs(self.cache) do
v.skip = nil
end
self.last_project_files = core.project_files
end
end
function TreeView:each_item()
return coroutine.wrap(function()
self:check_cache()
local ox, oy = self:get_content_offset()
local y = oy + style.padding.y
local w = self.size.x
local h = self:get_item_height()
local i = 1
while i <= #core.project_files do
local item = core.project_files[i]
local cached = self:get_cached(item)
coroutine.yield(cached, ox, y, w, h)
y = y + h
i = i + 1
if not cached.expanded then
if cached.skip then
i = cached.skip
else
local depth = cached.depth
while i <= #core.project_files do
local filename = core.project_files[i].filename
if get_depth(filename) <= depth then break end
i = i + 1
end
cached.skip = i
end
end
end
end)
end
function TreeView:on_mouse_moved(px, py)
self.hovered_item = nil
for item, x,y,w,h in self:each_item() do
if px > x and py > y and px <= x + w and py <= y + h then
self.hovered_item = item
break
end
end
end
function TreeView:on_mouse_pressed(button, x, y)
if not self.hovered_item then
return
elseif self.hovered_item.type == "dir" then
self.hovered_item.expanded = not self.hovered_item.expanded
else
core.try(function()
core.root_view:open_doc(core.open_doc(self.hovered_item.filename))
end)
end
end
function TreeView:update()
-- update width
local dest = self.visible and config.treeview_size or 0
if self.init_size then
self.size.x = dest
self.init_size = false
else
self:move_towards(self.size, "x", dest)
end
TreeView.super.update(self)
end
function TreeView:draw()
self:draw_background(style.background2)
local icon_width = style.icon_font:get_width("D")
local spacing = style.font:get_width(" ") * 2
local doc = core.active_view.doc
local active_filename = doc and system.absolute_path(doc.filename or "")
for item, x,y,w,h in self:each_item() do
local color = style.text
-- highlight active_view doc
if item.abs_filename == active_filename then
color = style.accent
end
-- hovered item background
if item == self.hovered_item then
renderer.draw_rect(x, y, w, h, style.line_highlight)
color = style.accent
end
-- icons
x = x + item.depth * style.padding.x + style.padding.x
if item.type == "dir" then
local icon1 = item.expanded and "-" or "+"
local icon2 = item.expanded and "D" or "d"
common.draw_text(style.icon_font, color, icon1, nil, x, y, 0, h)
x = x + style.padding.x
common.draw_text(style.icon_font, color, icon2, nil, x, y, 0, h)
x = x + icon_width
else
x = x + style.padding.x
common.draw_text(style.icon_font, color, "f", nil, x, y, 0, h)
x = x + icon_width
end
-- text
x = x + spacing
x = common.draw_text(style.font, color, item.name, nil, x, y, 0, h)
end
end
-- init
local view = TreeView()
local node = core.root_view:get_active_node()
node:split("left", view, true)
-- register commands and keymap
command.add(nil, {
["treeview:toggle"] = function()
view.visible = not view.visible
end,
})
keymap.add { ["ctrl+t"] = "treeview:toggle" } --< @r-lyeh ctrl+// > ctrl+t
-- register some context menu items, if available
local has_menu, menu = core.try(require, "plugins.contextmenu")
local has_fsutils, fsutils = core.try(require, "plugins.fsutils")
if has_menu and has_fsutils then
local function new_file_f(path)
command.perform "core:new-doc"
end
local function new_file()
new_file_f(view.hovered_item.abs_filename)
end
local function new_dir_f(path)
core.command_view:enter("New directory name", function(dir)
fsutils.mkdir(dir)
end)
core.command_view:set_text(path .. PATHSEP .. "New folder")
end
local function new_dir()
new_dir_f(view.hovered_item.abs_filename)
end
local function delete_f(path)
core.add_thread(function()
local function wrap()
return coroutine.wrap(function() fsutils.delete(path, true) end)
end
for n in wrap() do
if n % 100 == 0 then
core.log("Deleted %d items.", n)
coroutine.yield(0)
end
end
core.log("%q deleted.", path)
end)
end
local function delete()
local path = view.hovered_item.abs_filename
if view.hovered_item.type == "dir"
and system.show_confirm_dialog("Delete confirmation", string.format("Do you really want to delete %q ?", path)) then
delete_f(path)
else
delete_f(path)
end
end
local function dirname(path)
local p = fsutils.split(path)
table.remove(p)
return table.concat(p, PATHSEP)
end
local function rename()
local oldname = view.hovered_item.abs_filename
core.command_view:enter("Rename to", function(newname)
fsutils.move(oldname, newname)
core.log("Moved %q to %q", oldname, newname)
end, common.path_suggest)
core.command_view:set_text(dirname(oldname))
end
local function copy_path()
system.set_clipboard(view.hovered_item.abs_filename)
end
menu:register(function() return view.hovered_item and view.hovered_item.type == "dir" end, {
{ text = "New file", command = new_file },
{ text = "New folder", command = new_dir },
menu.DIVIDER,
{ text = "Rename", command = rename },
{ text = "Delete", command = delete },
menu.DIVIDER,
{ text = "Copy directory name", command = copy_path }
})
menu:register(function() return view.hovered_item and view.hovered_item.type == "file" end, {
{ text = "Rename", command = rename },
{ text = "Delete", command = delete },
menu.DIVIDER,
{ text = "Copy filename", command = copy_path }
})
-- general region of the treeview
menu:register(function(x, y)
local x1, y1, x2, y2 = view:get_content_bounds()
return not view.hovered_item and x > x1 and x <= x2 and y > y1 and y <= y2
end, {
{ text = "New file", command = function() new_file_f(system.absolute_path('.')) end },
{ text = "New folder", command = function() new_dir_f(system.absolute_path('.')) end }
})
end
return view --< @r-lyeh