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--[[--
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Button widget that shows an "×" and handles closing window when tapped
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Example:
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local CloseButton = require("ui/widget/closebutton")
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local parent_widget = OverlapGroup:new{}
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table.insert(parent_widget, CloseButton:new{
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window = parent_widget,
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})
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UIManager:show(parent_widget)
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]]
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local InputContainer = require("ui/widget/container/inputcontainer")
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local FrameContainer = require("ui/widget/container/framecontainer")
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local HorizontalGroup = require("ui/widget/horizontalgroup")
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local HorizontalSpan = require("ui/widget/horizontalspan")
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local TextWidget = require("ui/widget/textwidget")
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local GestureRange = require("ui/gesturerange")
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local Screen = require("device").screen
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local Font = require("ui/font")
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local CloseButton = InputContainer:new{
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overlap_align = "right",
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window = nil,
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}
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function CloseButton:init()
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local text_widget = TextWidget:new{
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text = "×",
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face = Font:getFace("cfont", 32),
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}
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local padding_span = HorizontalSpan:new{ width = Screen:scaleBySize(14) }
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self[1] = FrameContainer:new{
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bordersize = 0,
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padding = 0,
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HorizontalGroup:new{
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padding_span,
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text_widget,
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padding_span,
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}
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}
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self.ges_events.Close = {
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GestureRange:new{
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ges = "tap",
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-- x and y coordinates for the widget is only known after the it is
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-- drawn. so use callback to get range at runtime.
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range = function() return self.dimen end,
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},
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doc = "Tap on close button",
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}
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self.ges_events.HoldClose = {
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GestureRange:new{
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ges = "hold_release",
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range = function() return self.dimen end,
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},
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doc = "Hold on close button",
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}
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end
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function CloseButton:onClose()
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if self.window.onClose then
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self.window:onClose()
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end
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return true
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end
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function CloseButton:onHoldClose()
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if self.window.onHoldClose then
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self.window:onHoldClose()
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end
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return true
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end
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return CloseButton
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