new astal app launcher, refactor astal build fn

1 files changed, 113 insertions, 0 deletions

diff --git a/pkgs/astal/src/widget/launcher.lua b/pkgs/astal/src/widget/launcher.lua
new file mode 100644
index 0000000..cbac6c3
--- /dev/null
+++ b/pkgs/astal/src/widget/launcher.lua
@@ -0,0 +1,113 @@
+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 FlowBox = astalify(Gtk.FlowBox)
+local FlowBoxChild = astalify(Gtk.FlowBoxChild)
+
+local apps = Apps.Apps()
+local text = Variable("")
+local list = text(function(text)
+	return lib.slice(apps:exact_query(text), 0, MAX_ENTRIES)
+end)
+
+function on_show()
+	text:set("")
+end
+
+function close()
+	App:quit()
+end
+
+function on_key_press(self, event)
+	if event.keyval == Gdk.KEY_Escape then
+		close()
+	end
+end
+
+function on_enter()
+	local found = apps:exact_query(text:get())[1]
+	if found then
+		found:launch()
+		close()
+	end
+end
+
+function Application(app)
+	return FlowBoxChild({
+		Widget.Button({
+			class_name = "app",
+			on_clicked = function()
+				app:launch()
+				close()
+			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(),
+			on_changed = function(self)
+				text:set(self.text)
+			end,
+			on_activate = on_enter,
+		}),
+		Widget.Box({
+			class_name = "apps",
+			list:as(Applications),
+		}),
+	})
+end
+
+return function()
+	local Anchor = astal.require('Astal').WindowAnchor
+
+	return 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,
+		Launcher(),
+	})
+end