144 lines
4.1 KiB
Lua
144 lines
4.1 KiB
Lua
-- revelation.lua
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--
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-- Library that implements Expose like behavior.
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--
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-- @author Perry Hargrave resixian@gmail.com
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-- @author Espen Wiborg espenhw@grumblesmurf.org
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-- @author Julien Danjou julien@danjou.info
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--
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-- @copyright 2008 Espen Wiborg, Julien Danjou
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--
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local awful = require('awful')
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local aw_rules = require('awful.rules')
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local pairs = pairs
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local setmetatable = setmetatable
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local table = table
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local capi = {
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tag = tag,
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client = client,
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keygrabber = keygrabber,
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mousegrabber = mousegrabber,
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mouse = mouse,
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screen = screen
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}
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module("revelation")
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config = {
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-- Name of expose tag.
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tag_name = "Revelation",
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-- Match function can be defined by user.
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-- Must accept a `rule` and `client` and return `boolean`.
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-- The rule forms follow `awful.rules` syntax except we also check the
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-- special `rule.any` key. If its true, then we use the `match.any` function
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-- for comparison.
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match = {
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exact = aw_rules.match,
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any = aw_rules.match_any
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},
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}
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-- Executed when user selects a client from expose view.
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--
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-- @param restore Function to reset the current tags view.
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function selectfn(restore)
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return function(c)
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restore()
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-- Pop to client tag
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awful.tag.viewonly(c:tags()[1], c.screen)
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-- Focus and raise
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capi.client.focus = c
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c:raise()
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end
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end
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-- Tags all matching clients with tag t
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-- @param rule The rule. Conforms to awful.rules syntax.
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-- @param clients A table of clients to check.
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-- @param t The tag to give matching clients.
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function match_clients(rule, clients, t)
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local mf = rule.any and config.match.any or config.match.exact
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for _, c in pairs(clients) do
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if mf(c, rule) then
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awful.client.toggletag(t, c)
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c.minimized = false
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end
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end
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return clients
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end
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-- Arrow keys and 'hjkl' move focus, Return selects, Escape cancels. Ignores
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-- modifiers.
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--
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-- @param restore a function to call if the user presses escape
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-- @return keyboardhandler
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function keyboardhandler (restore)
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return function (mod, key, event)
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if event ~= "press" then return true end
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-- translate vim-style home keys to directions
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if key == "j" or key == "k" or key == "h" or key == "l" then
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if key == "j" then
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key = "Down"
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elseif key == "k" then
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key = "Up"
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elseif key == "h" then
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key = "Left"
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elseif key == "l" then
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key = "Right"
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end
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end
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--
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if key == "Escape" then
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restore()
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return false
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elseif key == "Return" then
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selectfn(restore)(capi.client.focus)
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return false
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elseif key == "Left" or key == "Right" or
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key == "Up" or key == "Down" then
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awful.client.focus.bydirection(key:lower())
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end
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return true
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end
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end
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-- Implement Exposé (ala Mac OS X).
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--
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-- @param rule A table with key and value to match. [{class=""}]
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-- @param s The screen to consider clients of. [mouse.screen].
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function expose(rule, s)
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local rule = rule or {class=""}
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local scr = s or capi.mouse.screen
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local t = awful.tag.new({config.tag_name},
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scr,
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awful.layout.suit.fair)[1]
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awful.tag.viewonly(t, t.screen)
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match_clients(rule, capi.client.get(scr), t)
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local function restore()
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awful.tag.history.restore()
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t.screen = nil
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capi.keygrabber.stop()
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capi.mousegrabber.stop()
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end
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capi.keygrabber.run(keyboardhandler(restore))
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capi.mousegrabber.run(function(mouse)
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if mouse.buttons[1] == true then
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local c = awful.mouse.client_under_pointer()
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selectfn(restore)(c)
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return false
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end
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return true
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--Strange but on my machine only fleur worked as a string.
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--stole it from
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--https://github.com/Elv13/awesome-configs/blob/master/widgets/layout/desktopLayout.lua#L175
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end,"fleur")
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end
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setmetatable(_M, { __call = function(_, ...) return expose(...) end })
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