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-- Copyright (c) 2021, Eisa AlAwadhi
-- License: BSD 2-Clause License
-- Creator: Eisa AlAwadhi
-- Project: UndoRedo
-- Version: 2.2
local utils = require("mp.utils")
local msg = require("mp.msg")
local seconds = 0
local countTimer = -1
local seekTime = 0
local seekNumber = 0
local currentIndex = 0
local seekTable = {}
local seeking = 0
local undoRedo = 0
local pause = false
seekTable[0] = 0
----------------------------USER CUSTOMIZATION SETTINGS-----------------------------------
--These settings are for users to manually change some options in the script.
--Keybinds can be defined in the bottom of the script.
local osd_messages = true --true is for displaying osd messages when actions occur, Change to false will disable all osd messages generated from this script
---------------------------END OF USER CUSTOMIZATION SETTINGS---------------------
local function prepareUndoRedo()
if pause == true then
seconds = seconds
else
seconds = seconds - 0.5
end
seekTable[currentIndex] = seekTable[currentIndex] + seconds
seconds = 0
end
local function getUndoRedo()
if seeking == 0 then
prepareUndoRedo()
seekNumber = currentIndex + 1
currentIndex = seekNumber
seekTime = math.floor(mp.get_property_number("time-pos"))
table.insert(seekTable, seekNumber, seekTime)
undoRedo = 0
elseif seeking == 1 then
seeking = 0
end
end
mp.register_event("file-loaded", function()
filePath = mp.get_property("path")
timer = mp.add_periodic_timer(0.1, function()
seconds = seconds + 0.1
end)
if pause == true then
timer:stop()
else
timer:resume()
end
timer2 = mp.add_periodic_timer(0.1, function()
countTimer = countTimer + 0.1
if countTimer == 0.6 then
timer:resume()
getUndoRedo()
end
end)
timer2:stop()
end)
mp.register_event("seek", function()
countTimer = 0
timer2:resume()
timer:stop()
end)
mp.observe_property("pause", "bool", function(name, value)
if value then
if timer ~= nil then
timer:stop()
end
pause = true
else
if timer ~= nil then
timer:resume()
end
pause = false
end
end)
mp.register_event("end-file", function()
if timer ~= nil then
timer:kill()
end
if timer2 ~= nil then
timer2:kill()
end
seekNumber = 0
currentIndex = 0
undoRedo = 0
seconds = 0
countTimer = -1
seekTable[0] = 0
end)
local function undo()
if (filePath ~= nil) and (countTimer >= 0) and (countTimer < 0.6) and (seeking == 0) then
timer2:stop()
getUndoRedo()
currentIndex = currentIndex - 1
if currentIndex < 0 then
if osd_messages == true then
mp.osd_message("No Undo Found")
end
currentIndex = 0
msg.info("No undo found")
else
if seekTable[currentIndex] < 0 then
seekTable[currentIndex] = 0
end
seeking = 1
mp.commandv("seek", seekTable[currentIndex], "absolute", "exact")
undoRedo = 1
if osd_messages == true then
mp.osd_message("Undo")
end
msg.info("Seeked using undo")
end
elseif (filePath ~= nil) and (currentIndex > 0) then
prepareUndoRedo()
currentIndex = currentIndex - 1
if seekTable[currentIndex] < 0 then
seekTable[currentIndex] = 0
end
seeking = 1
mp.commandv("seek", seekTable[currentIndex], "absolute", "exact")
undoRedo = 1
if osd_messages == true then
mp.osd_message("Undo")
end
msg.info("Seeked using undo")
elseif (filePath ~= nil) and (currentIndex == 0) then
if osd_messages == true then
mp.osd_message("No Undo Found")
end
msg.info("No undo found")
end
end
local function redo()
if (filePath ~= nil) and (currentIndex < seekNumber) then
prepareUndoRedo()
currentIndex = currentIndex + 1
if seekTable[currentIndex] < 0 then
seekTable[currentIndex] = 0
end
seeking = 1
mp.commandv("seek", seekTable[currentIndex], "absolute", "exact")
undoRedo = 0
if osd_messages == true then
mp.osd_message("Redo")
end
msg.info("Seeked using redo")
elseif (filePath ~= nil) and (currentIndex == seekNumber) then
if osd_messages == true then
mp.osd_message("No Redo Found")
end
msg.info("No redo found")
end
end
local function undoLoop()
if (filePath ~= nil) and (undoRedo == 0) then
undo()
elseif (filePath ~= nil) and (undoRedo == 1) then
redo()
elseif (filePath ~= nil) and (countTimer == -1) then
if osd_messages == true then
mp.osd_message("No Undo Found")
end
msg.info("No undo found")
end
end
mp.add_key_binding("ctrl+z", "undo", undo)
mp.add_key_binding("ctrl+Z", "undoCaps", undo)
mp.add_key_binding("ctrl+y", "redo", redo)
mp.add_key_binding("ctrl+Y", "redoCaps", redo)
mp.add_key_binding("ctrl+alt+z", "undoLoop", undoLoop)
mp.add_key_binding("ctrl+alt+Z", "undoLoopCaps", undoLoop)
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