ui overhaul

sys/apis/ui/components/Notification.lua

@@ -0,0 +1,67 @@
+local class = require('class')
+local Event = require('event')
+local Sound = require('sound')
+local UI    = require('ui')
+local Util  = require('util')
+
+local colors = _G.colors
+
+UI.Notification = class(UI.Window)
+UI.Notification.defaults = {
+	UIElement = 'Notification',
+	backgroundColor = colors.gray,
+	height = 3,
+}
+function UI.Notification:draw()
+end
+
+function UI.Notification:enable()
+end
+
+function UI.Notification:error(value, timeout)
+	self.backgroundColor = colors.red
+	Sound.play('entity.villager.no', .5)
+	self:display(value, timeout)
+end
+
+function UI.Notification:info(value, timeout)
+	self.backgroundColor = colors.gray
+	self:display(value, timeout)
+end
+
+function UI.Notification:success(value, timeout)
+	self.backgroundColor = colors.green
+	self:display(value, timeout)
+end
+
+function UI.Notification:cancel()
+	if self.canvas then
+		Event.cancelNamedTimer('notificationTimer')
+		self.enabled = false
+		self.canvas:removeLayer()
+		self.canvas = nil
+	end
+end
+
+function UI.Notification:display(value, timeout)
+	self.enabled = true
+	local lines = Util.wordWrap(value, self.width - 2)
+	self.height = #lines + 1
+	self.y = self.parent.height - self.height + 1
+	if self.canvas then
+		self.canvas:removeLayer()
+	end
+
+	self.canvas = self:addLayer(self.backgroundColor, self.textColor)
+	self:addTransition('expandUp', { ticks = self.height })
+	self.canvas:setVisible(true)
+	self:clear()
+	for k,v in pairs(lines) do
+		self:write(2, k, v)
+	end
+
+	Event.addNamedTimer('notificationTimer', timeout or 3, false, function()
+		self:cancel()
+		self:sync()
+	end)
+end