mirror of
https://github.com/koreader/koreader
synced 2024-11-10 01:10:34 +00:00
fadee1f5dc
Basically: * Use `extend` for class definitions * Use `new` for object instantiations That includes some minor code cleanups along the way: * Updated `Widget`'s docs to make the semantics clearer. * Removed `should_restrict_JIT` (it's been dead code since https://github.com/koreader/android-luajit-launcher/pull/283) * Minor refactoring of LuaSettings/LuaData/LuaDefaults/DocSettings to behave (mostly, they are instantiated via `open` instead of `new`) like everything else and handle inheritance properly (i.e., DocSettings is now a proper LuaSettings subclass). * Default to `WidgetContainer` instead of `InputContainer` for stuff that doesn't actually setup key/gesture events. * Ditto for explicit `*Listener` only classes, make sure they're based on `EventListener` instead of something uselessly fancier. * Unless absolutely necessary, do not store references in class objects, ever; only values. Instead, always store references in instances, to avoid both sneaky inheritance issues, and sneaky GC pinning of stale references. * ReaderUI: Fix one such issue with its `active_widgets` array, with critical implications, as it essentially pinned *all* of ReaderUI's modules, including their reference to the `Document` instance (i.e., that was a big-ass leak). * Terminal: Make sure the shell is killed on plugin teardown. * InputText: Fix Home/End/Del physical keys to behave sensibly. * InputContainer/WidgetContainer: If necessary, compute self.dimen at paintTo time (previously, only InputContainers did, which might have had something to do with random widgets unconcerned about input using it as a baseclass instead of WidgetContainer...). * OverlapGroup: Compute self.dimen at *init* time, because for some reason it needs to do that, but do it directly in OverlapGroup instead of going through a weird WidgetContainer method that it was the sole user of. * ReaderCropping: Under no circumstances should a Document instance member (here, self.bbox) risk being `nil`ed! * Kobo: Minor code cleanups.
114 lines
3.1 KiB
Lua
114 lines
3.1 KiB
Lua
--[[--
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Widget that displays a qr code.
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It vanishes on key press or after a given timeout.
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Example:
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local UIManager = require("ui/uimanager")
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local _ = require("gettext")
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local Screen = require("device").screen
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local sample
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sample = QRMessage:new{
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text = _("my message"),
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height = Screen:scaleBySize(400),
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width = Screen:scaleBySize(400),
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timeout = 5, -- This widget will vanish in 5 seconds.
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}
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UIManager:show(sample)
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]]
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local Blitbuffer = require("ffi/blitbuffer")
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local CenterContainer = require("ui/widget/container/centercontainer")
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local Device = require("device")
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local FrameContainer = require("ui/widget/container/framecontainer")
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local Geom = require("ui/geometry")
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local GestureRange = require("ui/gesturerange")
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local QRWidget = require("ui/widget/qrwidget")
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local InputContainer = require("ui/widget/container/inputcontainer")
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local UIManager = require("ui/uimanager")
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local Input = Device.input
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local Screen = Device.screen
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local Size = require("ui/size")
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local QRMessage = InputContainer:extend{
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modal = true,
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timeout = nil, -- in seconds
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text = nil, -- The text to encode.
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width = nil, -- The width. Keep it nil to use original width.
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height = nil, -- The height. Keep it nil to use original height.
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dismiss_callback = function() end,
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alpha = nil,
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scale_factor = 1,
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}
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function QRMessage:init()
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if Device:hasKeys() then
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self.key_events = {
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AnyKeyPressed = { { Input.group.Any },
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seqtext = "any key", doc = "close dialog" }
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}
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end
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if Device:isTouchDevice() then
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self.ges_events.TapClose = {
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GestureRange:new{
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ges = "tap",
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range = Geom:new{
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x = 0, y = 0,
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w = Screen:getWidth(),
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h = Screen:getHeight(),
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}
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}
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}
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end
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local padding = Size.padding.fullscreen
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local image_widget = QRWidget:new{
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text = self.text,
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width = self.width and (self.width - 2 * padding),
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height = self.height and (self.height - 2 * padding),
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alpha = self.alpha,
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scale_factor = self.scale_factor,
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}
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local frame = FrameContainer:new{
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background = Blitbuffer.COLOR_WHITE,
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padding = padding,
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image_widget,
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}
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self[1] = CenterContainer:new{
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dimen = Screen:getSize(),
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frame,
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}
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end
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function QRMessage:onCloseWidget()
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UIManager:setDirty(nil, function()
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return "ui", self[1][1].dimen
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end)
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end
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function QRMessage:onShow()
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-- triggered by the UIManager after we got successfully shown (not yet painted)
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UIManager:setDirty(self, function()
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return "ui", self[1][1].dimen
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end)
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if self.timeout then
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UIManager:scheduleIn(self.timeout, function() UIManager:close(self) end)
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end
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return true
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end
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function QRMessage:onAnyKeyPressed()
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-- triggered by our defined key events
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self.dismiss_callback()
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UIManager:close(self)
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end
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function QRMessage:onTapClose()
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self.dismiss_callback()
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UIManager:close(self)
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end
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return QRMessage
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