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63 lines
1.6 KiB
Lua
63 lines
1.6 KiB
Lua
local InputContainer = require("ui/widget/container/inputcontainer")
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local Device = require("device")
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local _ = require("gettext")
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local ReaderPanning = InputContainer:extend{
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-- defaults
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panning_steps = {
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normal = 50,
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alt = 25,
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shift = 10,
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altshift = 5
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},
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}
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function ReaderPanning:init()
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self:registerKeyEvents()
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-- NOP our own gesture handling
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self.ges_events = nil
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end
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function ReaderPanning:onGesture() end
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function ReaderPanning:registerKeyEvents()
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if Device:hasKeyboard() then
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self.key_events = {
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-- these will all generate the same event, just with different arguments
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MoveUp = {
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{ "Up" },
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event = "Panning",
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args = {0, -1}
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},
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MoveDown = {
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{ "Down" },
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event = "Panning",
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args = {0, 1}
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},
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MoveLeft = {
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{ "Left" },
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event = "Panning",
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args = {-1, 0}
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},
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MoveRight = {
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{ "Right" },
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event = "Panning",
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args = {1, 0}
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},
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}
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end
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end
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ReaderPanning.onPhysicalKeyboardConnected = ReaderPanning.registerKeyEvents
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function ReaderPanning:onPanning(args, _)
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local dx, dy = unpack(args)
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-- for now, bounds checking/calculation is done in the view
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self.view:PanningUpdate(
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dx * self.panning_steps.normal * self.view.visible_area.w * (1/100),
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dy * self.panning_steps.normal * self.view.visible_area.h * (1/100))
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return true
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end
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return ReaderPanning
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