1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
|
local astal = require("astal")
local Widget = require("astal.gtk3.widget")
local App = require("astal.gtk3.app")
local Gdk = require("astal.gtk3").Gdk
local Gtk = require("astal.gtk3").Gtk
local astalify = require("astal.gtk3").astalify
local Apps = astal.require("AstalApps")
local Variable = astal.Variable
local lib = require("lib")
local MAX_ENTRIES = 20
local WIDTH = 7
local FlowBox = astalify(Gtk.FlowBox)
local FlowBoxChild = astalify(Gtk.FlowBoxChild)
local apps = Apps.Apps()
local text = Variable("")
local visible = Variable(false)
local selection = Variable(1)
local entry = Variable(nil)
local list = text(function(text)
return lib.slice(apps:exact_query(text), 0, MAX_ENTRIES)
end)
function on_show()
text:set("")
selection:set(0)
entry:get():grab_focus()
end
function hide()
visible:set(false)
end
function on_enter()
local found = apps:exact_query(text:get())[selection:get() + 1]
if found then
found:launch()
hide()
end
end
function update_pos(change_x, change_y)
local pos = selection:get()
local pos_x = (pos % WIDTH) + change_x
local pos_y = math.floor(pos / WIDTH) + change_y
local count = lib.count(list:get())
local height = math.floor((count + WIDTH - 1) / WIDTH)
pos_x = pos_x % WIDTH
pos_y = pos_y % height
pos = lib.clamp(pos_y * WIDTH + pos_x, 0, count - 1)
selection:set(pos)
end
function on_key_press(self, event)
if event.keyval == Gdk.KEY_Escape then
hide()
elseif event.keyval == Gdk.KEY_Return then
on_enter()
elseif event.keyval == Gdk.KEY_Left then
update_pos(-1, 0)
elseif event.keyval == Gdk.KEY_Right then
update_pos(1, 0)
elseif event.keyval == Gdk.KEY_Up then
update_pos(0, -1)
elseif event.keyval == Gdk.KEY_Down then
update_pos(0, 1)
end
end
function Application(app, idx)
return FlowBoxChild({
Widget.Button({
class_name = selection():as(function(c)
if (c + 1) == idx then
return "app selected"
else
return "app"
end
end),
on_clicked = function()
app:launch()
hide()
end,
Widget.Box({
halign = "CENTER",
valign = "CENTER",
vertical = true,
Widget.Icon({
icon = app.icon_name,
}),
Widget.Label({
class_name = "name",
label = app.name,
valign = "CENTER",
ellipsize = "END",
max_width_chars = 20,
}),
}),
}),
})
end
function Applications(apps)
return FlowBox({
hexpand = true,
homogeneous = true,
class_name = "apps",
lib.map(apps, Application)
})
end
function Launcher()
return Widget.Box({
vertical = true,
Widget.Entry({
class_name = "search",
placeholder_text = "Search",
halign = "CENTER",
text = text(),
setup = function(self)
entry:set(self)
end,
on_changed = function(self)
text:set(self.text)
selection:set(0)
end,
}),
Widget.Box({
class_name = "apps",
list:as(Applications),
}),
})
end
return function()
local Anchor = astal.require('Astal').WindowAnchor
Widget.Window({
class_name = "launcher",
anchor = Anchor.TOP + Anchor.BOTTOM + Anchor.LEFT + Anchor.RIGHT,
exclusivity = "EXCLUSIVE",
keymode = "ON_DEMAND",
application = App,
on_show = on_show,
on_key_press_event = on_key_press,
visible = visible(),
Launcher(),
})
return visible
end
|
