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path: root/src/android/app/src/main/java/org/yuzu/yuzu_emu/fragments/DriverManagerFragment.kt
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// SPDX-FileCopyrightText: 2023 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later

package org.yuzu.yuzu_emu.fragments

import android.annotation.SuppressLint
import android.os.Bundle
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import androidx.activity.result.contract.ActivityResultContracts
import androidx.core.view.ViewCompat
import androidx.core.view.WindowInsetsCompat
import androidx.core.view.updatePadding
import androidx.fragment.app.Fragment
import androidx.fragment.app.activityViewModels
import androidx.lifecycle.Lifecycle
import androidx.lifecycle.lifecycleScope
import androidx.lifecycle.repeatOnLifecycle
import androidx.navigation.findNavController
import androidx.navigation.fragment.navArgs
import androidx.recyclerview.widget.GridLayoutManager
import com.google.android.material.transition.MaterialSharedAxis
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.launch
import kotlinx.coroutines.withContext
import org.yuzu.yuzu_emu.R
import org.yuzu.yuzu_emu.adapters.DriverAdapter
import org.yuzu.yuzu_emu.databinding.FragmentDriverManagerBinding
import org.yuzu.yuzu_emu.features.settings.model.StringSetting
import org.yuzu.yuzu_emu.model.Driver.Companion.toDriver
import org.yuzu.yuzu_emu.model.DriverViewModel
import org.yuzu.yuzu_emu.model.HomeViewModel
import org.yuzu.yuzu_emu.utils.FileUtil
import org.yuzu.yuzu_emu.utils.GpuDriverHelper
import org.yuzu.yuzu_emu.utils.NativeConfig
import java.io.File
import java.io.IOException

class DriverManagerFragment : Fragment() {
    private var _binding: FragmentDriverManagerBinding? = null
    private val binding get() = _binding!!

    private val homeViewModel: HomeViewModel by activityViewModels()
    private val driverViewModel: DriverViewModel by activityViewModels()

    private val args by navArgs<DriverManagerFragmentArgs>()

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        enterTransition = MaterialSharedAxis(MaterialSharedAxis.X, true)
        returnTransition = MaterialSharedAxis(MaterialSharedAxis.X, false)
        reenterTransition = MaterialSharedAxis(MaterialSharedAxis.X, false)
    }

    override fun onCreateView(
        inflater: LayoutInflater,
        container: ViewGroup?,
        savedInstanceState: Bundle?
    ): View {
        _binding = FragmentDriverManagerBinding.inflate(inflater)
        return binding.root
    }

    // This is using the correct scope, lint is just acting up
    @SuppressLint("UnsafeRepeatOnLifecycleDetector")
    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
        super.onViewCreated(view, savedInstanceState)
        homeViewModel.setNavigationVisibility(visible = false, animated = true)
        homeViewModel.setStatusBarShadeVisibility(visible = false)

        driverViewModel.onOpenDriverManager(args.game)
        if (NativeConfig.isPerGameConfigLoaded()) {
            binding.toolbarDrivers.inflateMenu(R.menu.menu_driver_manager)
            driverViewModel.showClearButton(!StringSetting.DRIVER_PATH.global)
            binding.toolbarDrivers.setOnMenuItemClickListener {
                when (it.itemId) {
                    R.id.menu_driver_clear -> {
                        StringSetting.DRIVER_PATH.global = true
                        driverViewModel.updateDriverList()
                        (binding.listDrivers.adapter as DriverAdapter)
                            .replaceList(driverViewModel.driverList.value)
                        driverViewModel.showClearButton(false)
                        true
                    }

                    else -> false
                }
            }

            viewLifecycleOwner.lifecycleScope.apply {
                launch {
                    repeatOnLifecycle(Lifecycle.State.STARTED) {
                        driverViewModel.showClearButton.collect {
                            binding.toolbarDrivers.menu
                                .findItem(R.id.menu_driver_clear).isVisible = it
                        }
                    }
                }
            }
        }

        if (!driverViewModel.isInteractionAllowed.value) {
            DriversLoadingDialogFragment().show(
                childFragmentManager,
                DriversLoadingDialogFragment.TAG
            )
        }

        binding.toolbarDrivers.setNavigationOnClickListener {
            binding.root.findNavController().popBackStack()
        }

        binding.buttonInstall.setOnClickListener {
            getDriver.launch(arrayOf("application/zip"))
        }

        binding.listDrivers.apply {
            layoutManager = GridLayoutManager(
                requireContext(),
                resources.getInteger(R.integer.grid_columns)
            )
            adapter = DriverAdapter(driverViewModel)
        }

        setInsets()
    }

    override fun onDestroy() {
        super.onDestroy()
        driverViewModel.onCloseDriverManager(args.game)
    }

    private fun setInsets() =
        ViewCompat.setOnApplyWindowInsetsListener(
            binding.root
        ) { _: View, windowInsets: WindowInsetsCompat ->
            val barInsets = windowInsets.getInsets(WindowInsetsCompat.Type.systemBars())
            val cutoutInsets = windowInsets.getInsets(WindowInsetsCompat.Type.displayCutout())

            val leftInsets = barInsets.left + cutoutInsets.left
            val rightInsets = barInsets.right + cutoutInsets.right

            val mlpAppBar = binding.toolbarDrivers.layoutParams as ViewGroup.MarginLayoutParams
            mlpAppBar.leftMargin = leftInsets
            mlpAppBar.rightMargin = rightInsets
            binding.toolbarDrivers.layoutParams = mlpAppBar

            val mlplistDrivers = binding.listDrivers.layoutParams as ViewGroup.MarginLayoutParams
            mlplistDrivers.leftMargin = leftInsets
            mlplistDrivers.rightMargin = rightInsets
            binding.listDrivers.layoutParams = mlplistDrivers

            val fabSpacing = resources.getDimensionPixelSize(R.dimen.spacing_fab)
            val mlpFab =
                binding.buttonInstall.layoutParams as ViewGroup.MarginLayoutParams
            mlpFab.leftMargin = leftInsets + fabSpacing
            mlpFab.rightMargin = rightInsets + fabSpacing
            mlpFab.bottomMargin = barInsets.bottom + fabSpacing
            binding.buttonInstall.layoutParams = mlpFab

            binding.listDrivers.updatePadding(
                bottom = barInsets.bottom +
                    resources.getDimensionPixelSize(R.dimen.spacing_bottom_list_fab)
            )

            windowInsets
        }

    private val getDriver =
        registerForActivityResult(ActivityResultContracts.OpenDocument()) { result ->
            if (result == null) {
                return@registerForActivityResult
            }

            IndeterminateProgressDialogFragment.newInstance(
                requireActivity(),
                R.string.installing_driver,
                false
            ) {
                val driverPath =
                    "${GpuDriverHelper.driverStoragePath}${FileUtil.getFilename(result)}"
                val driverFile = File(driverPath)

                // Ignore file exceptions when a user selects an invalid zip
                try {
                    if (!GpuDriverHelper.copyDriverToInternalStorage(result)) {
                        throw IOException("Driver failed validation!")
                    }
                } catch (_: IOException) {
                    if (driverFile.exists()) {
                        driverFile.delete()
                    }
                    return@newInstance getString(R.string.select_gpu_driver_error)
                }

                val driverData = GpuDriverHelper.getMetadataFromZip(driverFile)
                val driverInList =
                    driverViewModel.driverData.firstOrNull { it.second == driverData }
                if (driverInList != null) {
                    return@newInstance getString(R.string.driver_already_installed)
                } else {
                    driverViewModel.onDriverAdded(Pair(driverPath, driverData))
                    withContext(Dispatchers.Main) {
                        if (_binding != null) {
                            val adapter = binding.listDrivers.adapter as DriverAdapter
                            adapter.addItem(driverData.toDriver())
                            adapter.selectItem(adapter.currentList.indices.last)
                            driverViewModel.showClearButton(!StringSetting.DRIVER_PATH.global)
                            binding.listDrivers
                                .smoothScrollToPosition(adapter.currentList.indices.last)
                        }
                    }
                }
                return@newInstance Any()
            }.show(childFragmentManager, IndeterminateProgressDialogFragment.TAG)
        }
}