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Lua

-----------------
-- Keybindings --
-----------------
-- Binding aliases
local key, buf, but = lousy.bind.key, lousy.bind.buf, lousy.bind.but
local cmd, any = lousy.bind.cmd, lousy.bind.any
-- Util aliases
local match, join = string.match, lousy.util.table.join
local strip, split = lousy.util.string.strip, lousy.util.string.split
-- Globals or defaults that are used in binds
local scroll_step = globals.scroll_step or 20
local zoom_step = globals.zoom_step or 0.1
-- Add binds to a mode
function add_binds(mode, binds, before)
assert(binds and type(binds) == "table", "invalid binds table type: " .. type(binds))
mode = type(mode) ~= "table" and {mode} or mode
for _, m in ipairs(mode) do
local mdata = get_mode(m)
if mdata and before then
mdata.binds = join(binds, mdata.binds or {})
elseif mdata then
mdata.binds = mdata.binds or {}
for _, b in ipairs(binds) do table.insert(mdata.binds, b) end
else
new_mode(m, { binds = binds })
end
end
end
-- Add commands to command mode
function add_cmds(cmds, before)
add_binds("command", cmds, before)
end
-- Adds the default menu widget bindings to a mode
menu_binds = {
-- Navigate items
key({}, "j", function (w) w.menu:move_down() end),
key({}, "k", function (w) w.menu:move_up() end),
key({}, "Down", function (w) w.menu:move_down() end),
key({}, "Up", function (w) w.menu:move_up() end),
key({}, "Tab", function (w) w.menu:move_down() end),
key({"Shift"}, "Tab", function (w) w.menu:move_up() end),
}
-- Add binds to special mode "all" which adds its binds to all modes.
add_binds("all", {
key({}, "Escape", "Return to `normal` mode.",
function (w) w:set_mode() end),
key({"Control"}, "[", "Return to `normal` mode.",
function (w) w:set_mode() end),
-- Mouse bindings
but({}, 8, "Go back.",
function (w) w:back() end),
but({}, 9, "Go forward.",
function (w) w:forward() end),
-- Open link in new tab or navigate to selection
but({}, 2, [[Open link under mouse cursor in new tab or navigate to the
contents of `luakit.selection.primary`.]],
function (w, m)
-- Ignore button 2 clicks in form fields
if not m.context.editable then
-- Open hovered uri in new tab
local uri = w.view.hovered_uri
if uri then
w:new_tab(uri, false)
else -- Open selection in current tab
uri = luakit.selection.primary
if uri then w:navigate(w:search_open(uri)) end
end
end
end),
-- Open link in new tab when Ctrl-clicked.
but({"Control"}, 1, "Open link under mouse cursor in new tab.",
function (w, m)
local uri = w.view.hovered_uri
if uri then
w:new_tab(uri, false)
end
end),
-- Zoom binds
but({"Control"}, 4, "Increase text zoom level.",
function (w, m) w:zoom_in() end),
but({"Control"}, 5, "Reduce text zoom level.",
function (w, m) w:zoom_out() end),
-- Horizontal mouse scroll binds
but({"Shift"}, 4, "Scroll left.",
function (w, m) w:scroll{ xrel = -scroll_step } end),
but({"Shift"}, 5, "Scroll right.",
function (w, m) w:scroll{ xrel = scroll_step } end),
})
add_binds("normal", {
-- Autoparse the `[count]` before a binding and re-call the hit function
-- with the count removed and added to the opts table.
any([[Meta-binding to detect the `^[count]` syntax. The `[count]` is parsed
and stripped from the internal buffer string and the value assigned to
`state.count`. Then `lousy.bind.hit()` is re-called with the modified
buffer string & original modifier state.
#### Example binding
lousy.bind.key({}, "%", function (w, state)
w:scroll{ ypct = state.count }
end, { count = 0 })
This binding demonstrates several concepts. Firstly that you are able to
specify per-binding default values of `count`. In this case if the user
types `"%"` the document will be scrolled vertically to `0%` (the top).
If the user types `"100%"` then the document will be scrolled to `100%`
(the bottom). All without the need to use `lousy.bind.buf` bindings
everywhere and or using a `^(%d*)` pattern prefix on every binding which
would like to make use of the `[count]` syntax.]],
function (w, m)
local count, buf
if m.buffer then
count = string.match(m.buffer, "^(%d+)")
end
if count then
buf = string.sub(m.buffer, #count + 1, (m.updated_buf and -2) or -1)
local opts = join(m, {count = tonumber(count)})
opts.buffer = (#buf > 0 and buf) or nil
if lousy.bind.hit(w, m.binds, m.mods, m.key, opts) then
return true
end
end
return false
end),
key({}, "i", "Enter `insert` mode.",
function (w) w:set_mode("insert") end),
key({}, ":", "Enter `command` mode.",
function (w) w:set_mode("command") end),
-- Scrolling
key({}, "j", "Scroll document down.",
function (w) w:scroll{ yrel = scroll_step } end),
key({}, "k", "Scroll document up.",
function (w) w:scroll{ yrel = -scroll_step } end),
key({}, "h", "Scroll document left.",
function (w) w:scroll{ xrel = -scroll_step } end),
key({}, "l", "Scroll document right.",
function (w) w:scroll{ xrel = scroll_step } end),
key({}, "Down", "Scroll document down.",
function (w) w:scroll{ yrel = scroll_step } end),
key({}, "Up", "Scroll document up.",
function (w) w:scroll{ yrel = -scroll_step } end),
key({}, "Left", "Scroll document left.",
function (w) w:scroll{ xrel = -scroll_step } end),
key({}, "Right", "Scroll document right.",
function (w) w:scroll{ xrel = scroll_step } end),
key({}, "^", "Scroll to the absolute left of the document.",
function (w) w:scroll{ x = 0 } end),
key({}, "$", "Scroll to the absolute right of the document.",
function (w) w:scroll{ x = -1 } end),
key({}, "0", "Scroll to the absolute left of the document.",
function (w, m)
if not m.count then w:scroll{ y = 0 } else return false end
end),
key({"Control"}, "e", "Scroll document down.",
function (w) w:scroll{ yrel = scroll_step } end),
key({"Control"}, "y", "Scroll document up.",
function (w) w:scroll{ yrel = -scroll_step } end),
key({"Control"}, "d", "Scroll half page down.",
function (w) w:scroll{ ypagerel = 0.5 } end),
key({"Control"}, "u", "Scroll half page up.",
function (w) w:scroll{ ypagerel = -0.5 } end),
key({"Control"}, "f", "Scroll page down.",
function (w) w:scroll{ ypagerel = 1.0 } end),
key({"Control"}, "b", "Scroll page up.",
function (w) w:scroll{ ypagerel = -1.0 } end),
key({}, "space", "Scroll page down.",
function (w) w:scroll{ ypagerel = 1.0 } end),
key({"Shift"}, "space", "Scroll page up.",
function (w) w:scroll{ ypagerel = -1.0 } end),
key({}, "BackSpace", "Scroll page up.",
function (w) w:scroll{ ypagerel = -1.0 } end),
key({}, "Page_Down", "Scroll page down.",
function (w) w:scroll{ ypagerel = 1.0 } end),
key({}, "Page_Up", "Scroll page up.",
function (w) w:scroll{ ypagerel = -1.0 } end),
key({}, "Home", "Go to the end of the document.",
function (w) w:scroll{ y = 0 } end),
key({}, "End", "Go to the top of the document.",
function (w) w:scroll{ y = -1 } end),
-- Specific scroll
buf("^gg$", "Go to the top of the document.",
function (w, b, m) w:scroll{ ypct = m.count } end, {count=0}),
buf("^G$", "Go to the bottom of the document.",
function (w, b, m) w:scroll{ ypct = m.count } end, {count=100}),
buf("^%%$", "Go to `[count]` percent of the document.",
function (w, b, m) w:scroll{ ypct = m.count } end),
-- Zooming
key({}, "+", "Enlarge text zoom of the current page.",
function (w, m) w:zoom_in(zoom_step * m.count) end, {count=1}),
key({}, "-", "Reduce text zom of the current page.",
function (w, m) w:zoom_out(zoom_step * m.count) end, {count=1}),
key({}, "=", "Reset zoom level.",
function (w, m) w:zoom_set() end),
buf("^z[iI]$", [[Enlarge text zoom of current page with `zi` or `zI` to
reduce full zoom.]],
function (w, b, m)
w:zoom_in(zoom_step * m.count, b == "zI")
end, {count=1}),
buf("^z[oO]$", [[Reduce text zoom of current page with `zo` or `zO` to
reduce full zoom.]],
function (w, b, m)
w:zoom_out(zoom_step * m.count, b == "zO")
end, {count=1}),
-- Zoom reset or specific zoom ([count]zZ for full content zoom)
buf("^z[zZ]$", [[Set current page zoom to `[count]` percent with
`[count]zz`, use `[count]zZ` to set full zoom percent.]],
function (w, b, m)
w:zoom_set(m.count/100, b == "zZ")
end, {count=100}),
-- Fullscreen
key({}, "F11", "Toggle fullscreen mode.",
function (w) w.win.fullscreen = not w.win.fullscreen end),
-- Clipboard
key({}, "p", [[Open a URL based on the current primary selection contents
in the current tab.]],
function (w)
local uri = luakit.selection.primary
if not uri then w:notify("No primary selection...") return end
w:navigate(w:search_open(uri))
end),
key({}, "P", [[Open a URL based on the current primary selection contents
in `[count=1]` new tab(s).]],
function (w, m)
local uri = luakit.selection.primary
if not uri then w:notify("No primary selection...") return end
for i = 1, m.count do w:new_tab(w:search_open(uri)) end
end, {count = 1}),
-- Yanking
key({}, "y", "Yank current URI to primary selection.",
function (w)
local uri = string.gsub(w.view.uri or "", " ", "%%20")
luakit.selection.primary = uri
w:notify("Yanked uri: " .. uri)
end),
-- Commands
key({"Control"}, "a", "Increment last number in URL.",
function (w) w:navigate(w:inc_uri(1)) end),
key({"Control"}, "x", "Decrement last number in URL.",
function (w) w:navigate(w:inc_uri(-1)) end),
key({}, "o", "Open one or more URLs.",
function (w) w:enter_cmd(":open ") end),
key({}, "t", "Open one or more URLs in a new tab.",
function (w) w:enter_cmd(":tabopen ") end),
key({}, "w", "Open one or more URLs in a new window.",
function (w) w:enter_cmd(":winopen ") end),
key({}, "O", "Open one or more URLs based on current location.",
function (w) w:enter_cmd(":open " .. (w.view.uri or "")) end),
key({}, "T",
"Open one or more URLs based on current location in a new tab.",
function (w) w:enter_cmd(":tabopen " .. (w.view.uri or "")) end),
key({}, "W",
"Open one or more URLs based on current locaton in a new window.",
function (w) w:enter_cmd(":winopen " .. (w.view.uri or "")) end),
-- History
key({}, "H", "Go back in the browser history `[count=1]` items.",
function (w, m) w:back(m.count) end),
key({}, "L", "Go forward in the browser history `[count=1]` times.",
function (w, m) w:forward(m.count) end),
key({}, "XF86Back", "Go back in the browser history.",
function (w, m) w:back(m.count) end),
key({}, "XF86Forward", "Go forward in the browser history.",
function (w, m) w:forward(m.count) end),
key({"Control"}, "o", "Go back in the browser history.",
function (w, m) w:back(m.count) end),
key({"Control"}, "i", "Go forward in the browser history.",
function (w, m) w:forward(m.count) end),
-- Tab
key({"Control"}, "Page_Up", "Go to previous tab.",
function (w) w:prev_tab() end),
key({"Control"}, "Page_Down", "Go to next tab.",
function (w) w:next_tab() end),
key({"Control"}, "Tab", "Go to next tab.",
function (w) w:next_tab() end),
key({"Shift","Control"}, "Tab", "Go to previous tab.",
function (w) w:prev_tab() end),
buf("^gT$", "Go to previous tab.",
function (w) w:prev_tab() end),
buf("^gt$", "Go to next tab (or `[count]` nth tab).",
function (w, b, m)
if not w:goto_tab(m.count) then w:next_tab() end
end, {count=0}),
buf("^g0$", "Go to first tab.",
function (w) w:goto_tab(1) end),
buf("^g$$", "Go to last tab.",
function (w) w:goto_tab(-1) end),
key({"Control"}, "t", "Open a new tab.",
function (w) w:new_tab(globals.homepage) end),
key({"Control"}, "w", "Close current tab.",
function (w) w:close_tab() end),
key({}, "d", "Close current tab (or `[count]` tabs).",
function (w, m) for i=1,m.count do w:close_tab() end end, {count=1}),
key({}, "<", "Reorder tab left `[count=1]` positions.",
function (w, m)
w.tabs:reorder(w.view, w.tabs:current() - m.count)
end, {count=1}),
key({}, ">", "Reorder tab right `[count=1]` positions.",
function (w, m)
w.tabs:reorder(w.view,
(w.tabs:current() + m.count) % w.tabs:count())
end, {count=1}),
buf("^gH$", "Open homepage in new tab.",
function (w) w:new_tab(globals.homepage) end),
buf("^gh$", "Open homepage.",
function (w) w:navigate(globals.homepage) end),
buf("^gy$", "Duplicate current tab.",
function (w) w:new_tab(w.view.history or "") end),
key({}, "r", "Reload current tab.",
function (w) w:reload() end),
key({}, "R", "Reload current tab (skipping cache).",
function (w) w:reload(true) end),
key({"Control"}, "c", "Stop loading the current tab.",
function (w) w.view:stop() end),
key({"Control", "Shift"}, "R", "Restart luakit (reloading configs).",
function (w) w:restart() end),
-- Window
buf("^ZZ$", "Quit and save the session.",
function (w) w:save_session() w:close_win() end),
buf("^ZQ$", "Quit and don't save the session.",
function (w) w:close_win() end),
buf("^D$", "Quit and don't save the session.",
function (w) w:close_win() end),
-- Enter passthrough mode
key({"Control"}, "z",
"Enter `passthrough` mode, ignores all luakit keybindings.",
function (w) w:set_mode("passthrough") end),
})
add_binds("insert", {
key({"Control"}, "z",
"Enter `passthrough` mode, ignores all luakit keybindings.",
function (w) w:set_mode("passthrough") end),
})
readline_bindings = {
key({"Shift"}, "Insert",
"Insert contents of primary selection at cursor position.",
function (w) w:insert_cmd(luakit.selection.primary) end),
key({"Control"}, "w", "Delete previous word.",
function (w) w:del_word() end),
key({"Control"}, "u", "Delete until beginning of current line.",
function (w) w:del_line() end),
key({"Control"}, "h", "Delete character to the left.",
function (w) w:del_backward_char() end),
key({"Control"}, "d", "Delete character to the right.",
function (w) w:del_forward_char() end),
key({"Control"}, "a", "Move cursor to beginning of current line.",
function (w) w:beg_line() end),
key({"Control"}, "e", "Move cursor to end of current line.",
function (w) w:end_line() end),
key({"Control"}, "f", "Move cursor forward one character.",
function (w) w:forward_char() end),
key({"Control"}, "b", "Move cursor backward one character.",
function (w) w:backward_char() end),
key({"Mod1"}, "f", "Move cursor forward one word.",
function (w) w:forward_word() end),
key({"Mod1"}, "b", "Move cursor backward one word.",
function (w) w:backward_word() end),
}
add_binds({"command", "search"}, readline_bindings)
-- Switching tabs with Mod1+{1,2,3,...}
mod1binds = {}
for i=1,10 do
table.insert(mod1binds,
key({"Mod1"}, tostring(i % 10), "Jump to tab at index "..i..".",
function (w) w.tabs:switch(i) end))
end
add_binds("normal", mod1binds)
-- Command bindings which are matched in the "command" mode from text
-- entered into the input bar.
add_cmds({
buf("^%S+!",
[[Detect bang syntax in `:command!` and recursively calls
`lousy.bind.match_cmd(..)` removing the bang from the command string
and setting `bang = true` in the bind opts table.]],
function (w, cmd, opts)
local cmd, args = string.match(cmd, "^(%S+)!+(.*)")
if cmd then
opts = join(opts, { bang = true })
return lousy.bind.match_cmd(w, opts.binds, cmd .. args, opts)
end
end),
cmd("c[lose]", "Close current tab.",
function (w) w:close_tab() end),
cmd("print", "Print current page.",
function (w) w.view:eval_js("print()") end),
cmd("stop", "Stop loading.",
function (w) w.view:stop() end),
cmd("reload", "Reload page",
function (w) w:reload() end),
cmd("restart", "Restart browser (reload config files).",
function (w) w:restart() end),
cmd("write", "Save current session.",
function (w) w:save_session() end),
cmd("noh[lsearch]", "Clear search highlighting.",
function (w) w:clear_search() end),
cmd("back", "Go back in the browser history `[count=1]` items.",
function (w, a) w:back(tonumber(a) or 1) end),
cmd("f[orward]", "Go forward in the browser history `[count=1]` items.",
function (w, a) w:forward(tonumber(a) or 1) end),
cmd("inc[rease]", "Increment last number in URL.",
function (w, a) w:navigate(w:inc_uri(tonumber(a) or 1)) end),
cmd("o[pen]", "Open one or more URLs.",
function (w, a) w:navigate(w:search_open(a)) end),
cmd("t[abopen]", "Open one or more URLs in a new tab.",
function (w, a) w:new_tab(w:search_open(a)) end),
cmd("w[inopen]", "Open one or more URLs in a new window.",
function (w, a) window.new{w:search_open(a)} end),
cmd({"javascript", "js"}, "Evaluate JavaScript snippet.",
function (w, a) w.view:eval_js(a) end),
-- Tab manipulation commands
cmd("tab", "Execute command and open result in new tab.",
function (w, a) w:new_tab() w:run_cmd(":" .. a) end),
cmd("tabd[o]", "Execute command in each tab.",
function (w, a) w:each_tab(function (v) w:run_cmd(":" .. a) end) end),
cmd("tabdu[plicate]", "Duplicate current tab.",
function (w) w:new_tab(w.view.history) end),
cmd("tabfir[st]", "Switch to first tab.",
function (w) w:goto_tab(1) end),
cmd("tabl[ast]", "Switch to last tab.",
function (w) w:goto_tab(-1) end),
cmd("tabn[ext]", "Switch to the next tab.",
function (w) w:next_tab() end),
cmd("tabp[revious]", "Switch to the previous tab.",
function (w) w:prev_tab() end),
cmd("q[uit]", "Close the current window.",
function (w, a, o) w:close_win(o.bang) end),
cmd({"viewsource", "vs"}, "View the source code of the current document.",
function (w, a, o) w:toggle_source(not o.bang and true or nil) end),
cmd({"wqall", "wq"}, "Save the session and quit.",
function (w, a, o) w:save_session() w:close_win(o.bang) end),
cmd("lua", "Evaluate Lua snippet.", function (w, a)
if a then
local ret = assert(
loadstring("return function(w) return "..a.." end"))()(w)
if ret then print(ret) end
else
w:set_mode("lua")
end
end),
cmd("dump", "Dump current tabs html to file.",
function (w, a)
local fname = string.gsub(w.win.title, '[^%w%.%-]', '_')..'.html' -- sanitize filename
local file = a or luakit.save_file("Save file", w.win, xdg.download_dir or '.', fname)
if file then
local fd = assert(io.open(file, "w"), "failed to open: " .. file)
local html = assert(w.view:eval_js("document.documentElement.outerHTML"), "Unable to get HTML")
assert(fd:write(html), "unable to save html")
io.close(fd)
w:notify("Dumped HTML to: " .. file)
end
end),
})
-- vim: et:sw=4:ts=8:sts=4:tw=80