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-- document_menus.lua
--
-- Canaan Hadley-Voth
--
-- Navigate the filesystem by way of ion menu.
--
-- One way to implement this is to define a menu containing useful folders,
-- and use that as a starting point for binding to (see below).
--
-- 2005-12-20:
-- * Added a second possible action. Define docmenus.exec and exec2 below.
-- Selecting an item normally (Return or right arrow) will use exec,
-- Control+Return will use exec2.
-- * Script no longer puts a temp file in the session dir.
-- * Better handling of filenames with single and double quotes.
defmenu("useful folders", {
-- Define commonly used locations here.
-- Or skip this defmenu and put something like the following under mainmenu...
submenu("/", function() return docmenus.getfiletable("/") end, {noautoexpand=true}),
submenu("~", function() return docmenus.getfiletable(os.getenv("HOME")) end, {noautoexpand=true}),
submenu(".ion3/", function() return docmenus.getfiletable(ioncore.get_paths().userdir) end, {noautoexpand=true}),
-- Noautoexpand makes mod_query.query_menu skip this menu's expansion, which
-- would probably have crashed ion. (Though using document_menus to
-- expand filenames in a query is kind of like using wine to run firefox.
-- mod_query.query_editfile is sufficient for that.)
})
defbindings("WMPlex", {
kpress(MOD1.."minus", "mod_menu.menu(_, _sub, 'useful folders')"),
})
defbindings("WScreen", {
submap(MOD1.."K", {
kpress("minus", "docmenus.toggle_dotfiles()"),
}),
})
defbindings("WMenu", {
kpress("Control+Return", "docmenus.finish2(_)"),
})
-- This script creates menus far larger than Ion would
-- normally handle. The default scroll behavior is going to seem
-- inadequate, and this is how you would speed it up:
--mod_menu.set({ scroll_delay=5, scroll_amount=6 })
if not docmenus then
-- Specify something other than run-mailcap if necessary.
docmenus={
show_dotfiles = true,
exec = "run-mailcap --action=edit",
exec2 = "xterm -e vi",
}
end
function docmenus.getfiletable(dirpath)
local filetable = {}
local menufile
local safedirpath
-- os shell is used for the menu's directory listing.
--
-- lscommand can be customized, to a point.
-- Scrap the -L to keep from following symbolic links.
-- Just don't remove -p.
local lscommand = "ls -Lp"
if docmenus.show_dotfiles then lscommand = lscommand.." -a" end
if string.sub(dirpath, -1) ~= "/" then
dirpath = dirpath.."/"
end
safedirpath = string.gsub(dirpath, "\\", "\\\\")
safedirpath = string.gsub(safedirpath, "\"", "\\\"")
local ls = assert(io.popen(lscommand.." \""..safedirpath.."\"", "r"))
for menufile in pairs(ls:lines()) do
if menufile == "./" then menufile = "." end
if string.sub(menufile, 3) == "ls:" then
-- ls error message on broken link. skip it
elseif menufile == "../" then
-- I'd prefer not to show parent directory as a folder.
elseif string.sub(menufile, -1) == "/" then
table.insert(filetable, docmenus.subdir(menufile, dirpath..menufile))
else
table.insert(filetable, docmenus.file(menufile, dirpath..menufile))
end
end
ls:close()
return filetable
end
function docmenus.file(menustr,path)
path = string.shell_safe(path)
path = string.gsub(path, "\\", "\\\\")
path = string.gsub(path, "\"", "\\\"")
return menuentry(menustr,
"docmenus.doexec(_, \""..path.."\")"
)
end
function docmenus.doexec(mplex, path)
local cmd
if docmenus.use_exec2 then
cmd = docmenus.exec2.." "..path
else
cmd = docmenus.exec.." "..path
end
ioncore.exec_on(mplex, cmd)
docmenus.use_exec2 = false
end
function docmenus.subdir(menustr,path)
return submenu(menustr, function() return docmenus.getfiletable(path) end, {noautoexpand=true})
end
function docmenus.toggle_dotfiles()
docmenus.show_dotfiles=not docmenus.show_dotfiles
end
function docmenus.finish2(wmenu)
docmenus.use_exec2 = true
wmenu:finish()
end
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