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8a530f396a1bda08115955f0248b20831c2a85c1
[etc/awesome.git] / util / quake.lua
1
2 --[[
3                                                    
4      Licensed under GNU General Public License v2  
5       * (c) 2016, Luke Bonham                      
6       * (c) 2015, unknown                          
7                                                    
8 --]]
9
10 local awful        = require("awful")
11 local capi         = { client = client,
12                        timer  = require("gears.timer") }
13 local math         = { floor  = math.floor }
14 local string       = string
15
16 local pairs        = pairs
17 local screen       = screen
18 local setmetatable = setmetatable
19 local tostring     = tostring
20
21 -- Quake-like Dropdown application spawn
22 local quake = {}
23
24 -- If you have a rule like "awful.client.setslave" for your terminals,
25 -- ensure you use an exception for QuakeDD. Otherwise, you may
26 -- run into problems with focus.
27
28 function quake:display()
29     if self.followtag then self.screen = awful.screen.focused() end
30
31     -- First, we locate the client
32     local client = nil
33     local i = 0
34     for c in awful.client.iterate(function (c)
35         -- c.name may be changed!
36         return c.instance == self.name
37     end, nil, self.screen)
38     do
39         i = i + 1
40         if i == 1 then
41             client = c
42         else
43             -- Additional matching clients, let's remove the sticky bit
44             -- which may persist between awesome restarts. We don't close
45             -- them as they may be valuable. They will just turn into
46             -- normal clients.
47             c.sticky = false
48             c.ontop = false
49             c.above = false
50         end
51     end
52
53     if not client and not self.visible then return end
54
55     if not client then
56         -- The client does not exist, we spawn it
57         awful.spawn(string.format("%s %s %s", self.app,
58                     string.format(self.argname, self.name), self.extra),
59                     false, self.screen)
60         self.notexist = true
61         return
62     end
63
64     -- Resize
65     client.floating = true
66     client.border_width = self.border
67     client.size_hints_honor = false
68     if self.notexist then
69         self:compute_size()
70         client:geometry(self.geometry)
71         self.notexist = false
72     end
73
74     -- Not sticky and on top
75     client.sticky = false
76     client.ontop = true
77     client.above = true
78     client.skip_taskbar = true
79
80     -- Toggle display
81     if self.visible then
82         client.hidden = false
83         client:raise()
84         self.last_tag = self.screen.selected_tag
85         client:tags({self.screen.selected_tag})
86         capi.client.focus = client
87    else
88         client.hidden = true
89         local ctags = client:tags()
90         for i, t in pairs(ctags) do
91             ctags[i] = nil
92         end
93         client:tags(ctags)
94     end
95
96     return client
97 end
98
99 function quake:compute_size()
100     local geom = screen[self.screen].workarea
101     local width, height = self.width, self.height
102     if width  <= 1 then width = math.floor(geom.width * width) - 2 * self.border end
103     if height <= 1 then height = math.floor(geom.height * height) end
104     local x, y
105     if     self.horiz == "left"  then x = geom.x
106     elseif self.horiz == "right" then x = geom.width + geom.x - width
107     else   x = geom.x + (geom.width - width)/2 end
108     if     self.vert == "top"    then y = geom.y
109     elseif self.vert == "bottom" then y = geom.height + geom.y - height
110     else   y = geom.y + (geom.height - height)/2 end
111     self.geometry = { x = x, y = y, width = width, height = height }
112 end
113
114 function quake:new(config)
115     local conf = config or {}
116
117     conf.app       = conf.app       or "xterm"    -- application to spawn
118     conf.name      = conf.name      or "QuakeDD"  -- window name
119     conf.argname   = conf.argname   or "-name %s" -- how to specify window name
120     conf.extra     = conf.extra     or ""         -- extra arguments
121     conf.visible   = conf.visible   or false      -- initially not visible
122     conf.border    = conf.border    or 1          -- client border width
123     conf.followtag = conf.followtag or true       -- spawn on currently focused screen
124     conf.screen    = conf.screen    or awful.screen.focused()
125
126     -- If width or height <= 1 this is a proportion of the workspace
127     conf.height       = conf.height       or 0.25     -- height
128     conf.width        = conf.width        or 1        -- width
129     conf.vert         = conf.vert         or "top"    -- top, bottom or center
130     conf.horiz        = conf.horiz        or "left"   -- left, right or center
131
132     local console = setmetatable(conf, { __index = quake })
133     capi.client.connect_signal("manage", function(c)
134         if c.instance == console.name and c.screen == console.screen then
135             console:display()
136         end
137     end)
138     capi.client.connect_signal("unmanage", function(c)
139         if c.instance == console.name and c.screen == console.screen then
140             console.visible = false
141         end
142      end)
143
144     -- "Reattach" currently running quake application. This is in case awesome is restarted.
145     local reattach = capi.timer { timeout = 0 }
146     reattach:connect_signal("timeout", function()
147         if self.followtag then self.screen = awful.screen.focused() end
148         reattach:stop()
149         console:display()
150     end)
151     reattach:start()
152
153     return console
154 end
155
156 function quake:toggle()
157      if self.followtag then self.screen = awful.screen.focused() end
158      local current_tag = self.screen.selected_tag
159      if current_tag and self.last_tag ~= current_tag and self.visible then
160          self:display():move_to_tag(current_tag)
161      else
162          self.visible = not self.visible
163          self:display()
164      end
165 end
166
167 return setmetatable(quake, { __call = function(_, ...) return quake:new(...) end })