implement new file pickers

app/src/main/java/com/customRobTop/BaseRobTopActivity.kt

@@ -9,13 +9,28 @@ import android.content.Context
 import android.content.Intent
 import android.net.ConnectivityManager
 import android.net.NetworkCapabilities
+import android.net.Uri
 import android.os.Build
+import android.provider.DocumentsContract
+import android.provider.OpenableColumns
 import android.provider.Settings
 import android.widget.Toast
+import androidx.activity.result.ActivityResultLauncher
+import androidx.activity.result.contract.ActivityResultContracts
+import androidx.appcompat.app.AppCompatActivity
 import androidx.core.net.toUri
+import com.customRobTop.contracts.ImportFileActivityContract
+import com.customRobTop.contracts.ShareFileActivityContract
 import com.geode.launcher.R
+import com.geode.launcher.utils.DownloadUtils
+import com.geode.launcher.utils.LaunchUtils
+import org.cocos2dx.lib.Cocos2dxGLSurfaceView
 import org.cocos2dx.lib.Cocos2dxGLSurfaceView.Companion.closeIMEKeyboard
 import org.cocos2dx.lib.Cocos2dxGLSurfaceView.Companion.openIMEKeyboard
+import java.io.File
+import java.io.FileInputStream
+import java.io.IOException
+import java.io.OutputStream
 import java.lang.ref.WeakReference
 import java.util.UUID
 
@@ -24,6 +39,7 @@ object BaseRobTopActivity {
     const val KEYBOARD_INPUT_MULTILINE = 1
     const val KEYBOARD_INPUT_NUMERIC = 4
     const val KEYBOARD_INPUT_PASSWORD = 2
+    const val LEVEL_EXTENSION: String = ".gdlvl"
 
     private var isLoaded = false
     var blockBackButton = false
@@ -35,8 +51,57 @@ object BaseRobTopActivity {
     lateinit var me: WeakReference<Activity>
     private var shouldResumeSound = true
 
-    fun setCurrentActivity(currentActivity: Activity) {
+    private var pendingExportPaths = emptyList<String>()
+
+    private lateinit var importFileActivityContract: ActivityResultLauncher<Unit>
+    private lateinit var shareFileActivityContract: ActivityResultLauncher<String>
+    private lateinit var shareFolderActivityContract: ActivityResultLauncher<Uri?>
+
+    fun setCurrentActivity(currentActivity: AppCompatActivity) {
         me = WeakReference(currentActivity)
+
+        importFileActivityContract = currentActivity.registerForActivityResult(ImportFileActivityContract()) { uris ->
+            val filePaths = copyPickedFiles(uris)
+
+            Cocos2dxGLSurfaceView.cocos2dxGLSurfaceView.queueEvent {
+                JniToCpp.filesPicked(filePaths.toTypedArray())
+            }
+        }
+
+        shareFileActivityContract = currentActivity.registerForActivityResult(ShareFileActivityContract()) { uri ->
+            val currentlyPending = pendingExportPaths
+            pendingExportPaths = emptyList()
+
+            val exportPath = currentlyPending.firstOrNull()
+            if (exportPath == null || uri == null) {
+                Cocos2dxGLSurfaceView.cocos2dxGLSurfaceView.queueEvent {
+                    JniToCpp.fileShareFinished(false)
+                }
+                return@registerForActivityResult
+            }
+
+            val result = saveToDocument(exportPath, uri)
+            Cocos2dxGLSurfaceView.cocos2dxGLSurfaceView.queueEvent {
+                JniToCpp.fileShareFinished(result)
+            }
+        }
+
+        shareFolderActivityContract = currentActivity.registerForActivityResult(ActivityResultContracts.OpenDocumentTree()) { uri ->
+            val currentlyPending = pendingExportPaths
+            pendingExportPaths = emptyList()
+
+            if (uri == null) {
+                Cocos2dxGLSurfaceView.cocos2dxGLSurfaceView.queueEvent {
+                    JniToCpp.fileShareFinished(false)
+                }
+                return@registerForActivityResult
+            }
+
+            val result = saveToFolder(currentlyPending, uri) > 0
+            Cocos2dxGLSurfaceView.cocos2dxGLSurfaceView.queueEvent {
+                JniToCpp.fileShareFinished(result)
+            }
+        }
     }
 
     @SuppressLint("HardwareIds")
@@ -289,4 +354,159 @@ object BaseRobTopActivity {
     fun setKeyboardInputFlags(flags: Int) {
         curKeyboardInputFlags = flags
     }
+
+    @JvmStatic
+    fun pickImportFiles() {
+        try {
+            importFileActivityContract.launch(Unit)
+        } catch (_: ActivityNotFoundException) {
+            me.get()?.apply {
+                runOnUiThread {
+                    Toast.makeText(
+                        this,
+                        R.string.no_activity_found,
+                        Toast.LENGTH_SHORT,
+                    ).show()
+                }
+            }
+        }
+    }
+
+    private fun copyPickedFiles(uris: List<Uri>): List<String> {
+        val me = me.get() ?: return emptyList()
+
+        val importsDir = File(LaunchUtils.getSaveDirectory(me), "imports")
+        importsDir.mkdirs()
+
+        return uris.mapIndexedNotNull { index, uri ->
+            val displayName = displayName(uri)
+                ?: "import_$index$LEVEL_EXTENSION"
+            if (!displayName.endsWith(LEVEL_EXTENSION)) {
+                return@mapIndexedNotNull null
+            }
+
+            var outputFile = File(importsDir, displayName)
+            var counter = 2
+            while (outputFile.exists()) {
+                outputFile = File(importsDir, "${counter}_$displayName")
+                counter++
+            }
+
+            try {
+                me.contentResolver.openInputStream(uri)?.use { input ->
+                    outputFile.outputStream().use { output ->
+                        DownloadUtils.copyFile(input, output)
+                    }
+
+                    outputFile.absolutePath
+                }
+            } catch (_: Exception) {
+                outputFile.delete()
+                null
+            }
+        }
+    }
+
+    private fun displayName(uri: Uri): String? {
+        me.get()?.contentResolver?.query(uri, arrayOf(OpenableColumns.DISPLAY_NAME), null, null, null)?.use { cursorQuery ->
+            if (cursorQuery.moveToFirst()) {
+                val displayName = cursorQuery.getString(0)
+                if (displayName.isNotEmpty()) {
+                    return File(displayName).name
+                }
+            }
+        }
+
+        return null
+    }
+
+    @JvmStatic
+    fun shareFiles(files: Array<String>) {
+        pendingExportPaths = files.toList()
+
+        try {
+            if (files.size == 1) {
+                shareFileActivityContract.launch(files.first())
+                return
+            } else if (files.size > 1) {
+                shareFolderActivityContract.launch(null)
+                return
+            }
+        } catch (_: ActivityNotFoundException) {
+            me.get()?.apply {
+                runOnUiThread {
+                    Toast.makeText(
+                        this,
+                        R.string.no_activity_found,
+                        Toast.LENGTH_SHORT,
+                    ).show()
+                }
+            }
+
+            Cocos2dxGLSurfaceView.cocos2dxGLSurfaceView.queueEvent {
+                JniToCpp.fileShareFinished(false)
+            }
+        }
+
+    }
+
+    private fun saveToFolder(exportPaths: List<String>, treeUri: Uri): Int {
+        val uri = DocumentsContract.buildDocumentUriUsingTree(treeUri, DocumentsContract.getTreeDocumentId(treeUri))
+
+        val me = me.get() ?: return 0
+
+        return exportPaths.count { path ->
+            val filename = File(path).name
+            val documentUri = DocumentsContract.createDocument(me.contentResolver, uri, "application/octet-stream", filename)
+                ?: return@count false
+
+            saveToDocument(path, documentUri)
+        }
+    }
+
+    private fun saveToDocument(exportPath: String, uri: Uri): Boolean {
+        try {
+            FileInputStream(exportPath).use { inputStream ->
+                openOutput(uri).use { outputStream ->
+                    if (outputStream != null) {
+                        DownloadUtils.copyFile(inputStream, outputStream)
+                    }
+                }
+            }
+
+            ensureLevelExtension(uri)
+            return true
+        } catch (_: IOException) {
+            return false
+        }
+    }
+
+    private fun openOutput(uri: Uri): OutputStream? {
+        val me = me.get() ?: return null
+        return try {
+            me.contentResolver.openOutputStream(uri, "wt")
+        } catch (_: IOException) {
+            me.contentResolver.openOutputStream(uri)
+        }
+    }
+
+    private fun ensureLevelExtension(uri: Uri) {
+        val displayName = displayName(uri)
+        if (displayName == null || displayName.endsWith(LEVEL_EXTENSION)) {
+            return
+        }
+        val me = me.get() ?: return
+
+        val extensionIdx = displayName.lastIndexOf(".gdlvl.")
+        val substring = if (extensionIdx < 0) {
+            displayName + LEVEL_EXTENSION
+        } else {
+            displayName.substring(0, extensionIdx + 6)
+        }
+
+        try {
+            DocumentsContract.renameDocument(me.contentResolver, uri, substring)
+        } catch (_: IOException) {
+        }
+    }
 }

app/src/main/java/com/customRobTop/JniToCpp.kt

@@ -55,4 +55,16 @@ object JniToCpp {
 
     @JvmStatic
     external fun videoAdShowed()
+
+    @JvmStatic
+    external fun filesPicked(files: Array<String>)
+
+    @JvmStatic
+    external fun fileShareFinished(success: Boolean)
+
+    @JvmStatic
+    external fun textInputCaretToEnd()
+
+    @JvmStatic
+    external fun textInputDone()
 }

app/src/main/java/com/customRobTop/contracts/ImportFileActivityContract.kt

@@ -0,0 +1,40 @@
+package com.customRobTop.contracts
+
+import android.app.Activity
+import android.content.Context
+import android.content.Intent
+import android.net.Uri
+import androidx.activity.result.contract.ActivityResultContract
+
+class ImportFileActivityContract : ActivityResultContract<Unit, List<Uri>>() {
+    override fun createIntent(
+        context: Context,
+        input: Unit
+    ): Intent {
+        return Intent(Intent.ACTION_OPEN_DOCUMENT).apply {
+            addCategory(Intent.CATEGORY_OPENABLE)
+            type = "*/*"
+            putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true)
+        }
+    }
+
+    override fun parseResult(
+        resultCode: Int,
+        intent: Intent?
+    ): List<Uri> {
+        if (resultCode != Activity.RESULT_OK || intent == null) {
+            return emptyList()
+        }
+
+        val clipData = intent.clipData
+        return if (clipData != null) {
+            List(clipData.itemCount) { i -> clipData.getItemAt(i).uri }
+        } else {
+            val intentData = intent.data
+            if (intentData != null)
+                listOf(intentData)
+            else
+                emptyList()
+        }
+    }
+}

app/src/main/java/com/customRobTop/contracts/ShareFileActivityContract.kt

@@ -0,0 +1,40 @@
+package com.customRobTop.contracts
+
+import android.app.Activity
+import android.content.Context
+import android.content.Intent
+import android.net.Uri
+import android.os.Build
+import android.provider.DocumentsContract
+import androidx.activity.result.contract.ActivityResultContract
+import java.io.File
+
+class ShareFileActivityContract : ActivityResultContract<String, Uri?>() {
+    override fun createIntent(
+        context: Context,
+        input: String
+    ): Intent {
+        return Intent(Intent.ACTION_CREATE_DOCUMENT).apply {
+            addCategory(Intent.CATEGORY_OPENABLE)
+            type = "application/octet-stream"
+            putExtra(Intent.EXTRA_TITLE, File(input).name)
+
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+                putExtra(DocumentsContract.EXTRA_INITIAL_URI,
+                    DocumentsContract.buildDocumentUri("com.android.externalstorage.documents", "primary:Download")
+                )
+            }
+        }
+    }
+
+    override fun parseResult(
+        resultCode: Int,
+        intent: Intent?
+    ): Uri? {
+        if (resultCode != Activity.RESULT_OK || intent == null) {
+            return null
+        }
+
+        return intent.data
+    }
+}