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koreader/frontend/ui/widget/iconbutton.lua
NiLuJe 50dbf6b581 Switch a few widgets to ui refresh modes
More closely matches native behavior on REAGL devices.
Closing those widgets should still trigger a partial refresh though,
because we usually get back to the reader, and text, so we want REAGL
;).
2015-04-26 20:07:17 +02:00

66 lines
1.6 KiB
Lua

local InputContainer = require("ui/widget/container/inputcontainer")
local ImageWidget = require("ui/widget/imagewidget")
local GestureRange = require("ui/gesturerange")
local UIManager = require("ui/uimanager")
--[[
Button with a big icon image! Designed for touch device
--]]
local IconButton = InputContainer:new{
icon_file = "resources/info-confirm.png",
dimen = nil,
-- show_parent is used for UIManager:setDirty, so we can trigger repaint
show_parent = nil,
autoscale = true,
callback = function() end,
}
function IconButton:init()
self.image = ImageWidget:new{
file = self.icon_file,
autoscale = self.autoscale,
}
self.show_parent = self.show_parent or self
self.dimen = self.image:getSize()
self:initGesListener()
self[1] = self.image
end
function IconButton:initGesListener()
self.ges_events = {
TapClickButton = {
GestureRange:new{
ges = "tap",
range = self.dimen,
}
},
}
end
function IconButton:onTapClickButton()
UIManager:scheduleIn(0.0, function()
self.image.invert = true
UIManager:setDirty(self.show_parent, function()
return "ui", self[1].dimen
end)
end)
-- make sure button reacts before doing callback
UIManager:scheduleIn(0.1, function()
self.callback()
self.image.invert = false
UIManager:setDirty(self.show_parent, function()
return "ui", self[1].dimen
end)
end)
return true
end
function IconButton:onSetDimensions(new_dimen)
self.dimen = new_dimen
end
return IconButton