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5a47c7d30dacff3ea2eeb64b9e985657fdef6538
[etc/awesome.git] / util / quake.lua
1
2 --[[
3                                                    
4      Licensed under GNU General Public License v2  
5       * (c) 2016, Luke Bonham                      
6                                                    
7 --]]
8
9 local awful  = require("awful")
10 local capi   = { client = client,
11                  mouse  = mouse,
12                  screen = screen,
13                  timer  = timer }
14 local math   = { floor = math.floor }
15 local string = string
16
17 local pairs        = pairs
18 local setmetatable = setmetatable
19 local tostring     = tostring
20
21 -- Quake-like Dropdown application spawn
22 -- Original version: https://awesomewm.org/wiki/Drop-down_terminal#Another_solution
23 local quake = {}
24
25 -- If you have a rule like "awful.client.setslave" for your terminals,
26 -- ensure you use an exception for QuakeDD. Otherwise, you may
27 -- run into problems with focus.
28
29 function quake:display()
30    -- First, we locate the client
31    local client = nil
32    local i = 0
33    for c in awful.client.iterate(function (c)
34        -- c.name may be changed!
35        return c.instance == self.name
36    end, nil, self.screen)
37    do
38        i = i + 1
39        if i == 1 then
40            client = c
41        else
42            -- Additional matching clients, let's remove the sticky bit
43            -- which may persist between awesome restarts. We don't close
44            -- them as they may be valuable. They will just turn into
45            -- normal clients.
46            c.sticky = false
47            c.ontop = false
48            c.above = false
49        end
50    end
51
52    if not client and not self.visible then return end
53
54    if not client then
55        -- The client does not exist, we spawn it
56        awful.util.spawn(string.format("%s %s %s", self.app,
57                         string.format(self.argname, self.name), self.extra),
58                         false, self.screen)
59        self.notexist = true
60        return
61    end
62
63    -- Resize
64    awful.client.floating.set(client, true)
65    --client.border_width = self.border
66    client.size_hints_honor = false
67    if self.notexist then
68        client:geometry(self.geometry)
69        self.notexist = false
70    end
71
72    -- Not sticky and on top
73    client.ontop = true
74    client.above = true
75    client.skip_taskbar = true
76    client.sticky = false
77
78    -- Toggle display
79    if self.visible then
80        client.hidden = false
81        client:raise()
82        self.last_tag = tostring(awful.tag.selected(self.screen))
83        client:tags({awful.tag.selected(self.screen)})
84        capi.client.focus = client
85    else
86        client.hidden = true
87        local ctags = client:tags()
88        for i, t in pairs(ctags) do
89            ctags[i] = nil
90        end
91        client:tags(ctags)
92    end
93
94    return client
95 end
96
97 function quake:new(config)
98    local conf = config or {}
99
100    conf.app      = conf.app      or "xterm"    -- application to spawn
101    conf.name     = conf.name     or "QuakeDD"  -- window name
102    conf.argname  = conf.argname  or "-name %s" -- how to specify window name
103    conf.extra    = conf.extra    or ""         -- extra arguments
104    conf.visible  = conf.visible  or false      -- initially not visible
105    conf.screen   = conf.screen   or capi.mouse.screen
106    conf.border   = conf.border   or 1
107
108    -- If width or height <= 1 this is a proportion of the workspace
109    wibox_height = conf.wibox_height or 18       -- statusbar weight
110    height       = conf.height       or 0.25     -- height
111    width        = conf.width        or 1        -- width
112    vert         = conf.vert         or "top"    -- top, bottom or center
113    horiz        = conf.horiz        or "center" -- left, right or center
114
115    -- Compute size
116    local geom = capi.screen[conf.screen].workarea
117    if width  <= 1 then width = math.floor(geom.width * width) end
118    if height <= 1 then height = math.floor(geom.height * height) end
119    local x, y
120    if     horiz == "left"  then x = geom.x
121    elseif horiz == "right" then x = geom.width + geom.x - width
122    else   x = geom.x + (geom.width - width)/2 end
123    if     vert == "top"    then y = geom.y
124    elseif vert == "bottom" then y = geom.height + geom.y - height
125    else   y = geom.y + (geom.height - height)/2 end
126    conf.geometry = { x = x, y = y + wibox_height, width = width, height = height }
127
128    local console = setmetatable(conf, { __index = quake })
129    capi.client.connect_signal("manage", function(c)
130        if c.instance == console.name and c.screen == console.screen then
131            console:display()
132        end
133    end)
134    capi.client.connect_signal("unmanage", function(c)
135        if c.instance == console.name and c.screen == console.screen then
136            console.visible = false
137        end
138     end)
139
140    -- "Reattach" currently running quake application. This is in case awesome is restarted.
141    local reattach = capi.timer { timeout = 0 }
142    reattach:connect_signal("timeout", function()
143        reattach:stop()
144        console:display()
145    end)
146    reattach:start()
147
148    return console
149 end
150
151 function quake:toggle()
152     current_tag = awful.tag.selected(self.screen)
153     if self.last_tag ~= tostring(current_tag) and self.visible then
154         awful.client.movetotag(current_tag, self:display())
155     else
156         self.visible = not self.visible
157         self:display()
158     end
159 end
160
161 setmetatable(quake, { __call = function(_, ...) return quake:new(...) end })
162
163 return quake