Show sync progress

app/src/main/java/gallery/memories/MainActivity.kt

@@ -15,7 +15,6 @@ import android.webkit.WebResourceRequest
 import android.webkit.WebResourceResponse
 import android.webkit.WebView
 import android.webkit.WebViewClient
-import androidx.activity.result.contract.ActivityResultContracts
 import androidx.appcompat.app.AppCompatActivity
 import androidx.lifecycle.Lifecycle
 import androidx.media3.common.MediaItem
@@ -63,8 +62,8 @@ class MainActivity : AppCompatActivity() {
         // Initialize services
         nativex = NativeX(this)
 
-        // Ensure storage permissions
+        // Sync if permission is available
-        ensureStoragePermissions()
+        nativex.doMediaSync(false)
 
         // Load JavaScript
         initializeWebView()
@@ -198,49 +197,6 @@ class MainActivity : AppCompatActivity() {
         return false
     }
 
-    fun ensureStoragePermissions() {
-        val requestPermissionLauncher = registerForActivityResult(
-            ActivityResultContracts.RequestMultiplePermissions()
-        ) { permissions ->
-
-            // we need all of these
-            val isGranted = permissions.all { it.value }
-
-            // start synchronization if granted
-            if (isGranted) {
-                val needFullSync = !hasMediaPermission()
-
-                // Run DB operations in separate thread
-                Thread {
-                    // Full sync if this is the first time permission was granted
-                    if (needFullSync) {
-                        nativex.query.syncFullDb()
-                    }
-
-                    // Run delta sync and register hooks
-                    nativex.query.initialize()
-                }.start()
-            } else {
-                Log.w(TAG, "Storage permission not available")
-            }
-
-            // Persist that we have it now
-            setHasMediaPermission(isGranted)
-        }
-
-        // Request media read permission
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
-            requestPermissionLauncher.launch(
-                arrayOf(
-                    android.Manifest.permission.READ_MEDIA_IMAGES,
-                    android.Manifest.permission.READ_MEDIA_VIDEO,
-                )
-            )
-        } else {
-            requestPermissionLauncher.launch(arrayOf(android.Manifest.permission.READ_EXTERNAL_STORAGE))
-        }
-    }
-
     fun initializePlayer(uris: Array<Uri>, uid: String) {
         if (player != null) {
             if (playerUid.equals(uid)) return
@@ -374,17 +330,6 @@ class MainActivity : AppCompatActivity() {
         }
     }
 
-    fun hasMediaPermission(): Boolean {
-        return getSharedPreferences(getString(R.string.preferences_key), 0)
-            .getBoolean(getString(R.string.preferences_has_media_permission), false)
-    }
-
-    private fun setHasMediaPermission(v: Boolean) {
-        getSharedPreferences(getString(R.string.preferences_key), 0).edit()
-            .putBoolean(getString(R.string.preferences_has_media_permission), v)
-            .apply()
-    }
-
     fun refreshTimeline(force: Boolean = false) {
         runOnUiThread {
             // Check webview is loaded

app/src/main/java/gallery/memories/NativeX.kt

@@ -12,6 +12,7 @@ import gallery.memories.service.AccountService
 import gallery.memories.service.DownloadService
 import gallery.memories.service.HttpService
 import gallery.memories.service.ImageService
+import gallery.memories.service.PermissionsService
 import gallery.memories.service.TimelineQuery
 import org.json.JSONArray
 import java.io.ByteArrayInputStream
@@ -26,6 +27,7 @@ class NativeX(private val mCtx: MainActivity) {
     val image = ImageService(mCtx, query)
     val http = HttpService()
     val account = AccountService(mCtx, http)
+    val permissions = PermissionsService(mCtx).register()
 
     init {
         dlService = DownloadService(mCtx, query)
@@ -53,6 +55,8 @@ class NativeX(private val mCtx: MainActivity) {
         val SHARE_URL = Regex("^/api/share/url/.+$")
         val SHARE_BLOB = Regex("^/api/share/blob/.+$")
         val SHARE_LOCAL = Regex("^/api/share/local/\\d+$")
+
+        val CONFIG_ALLOW_MEDIA = Regex("^/api/config/allow_media/\\d+$")
     }
 
     @JavascriptInterface
@@ -157,6 +161,16 @@ class NativeX(private val mCtx: MainActivity) {
         return query.localFolders.toString()
     }
 
+    @JavascriptInterface
+    fun configHasMediaPermission(): Boolean {
+        return permissions.hasAllowMedia() && permissions.hasMediaPermission()
+    }
+
+    @JavascriptInterface
+    fun getSyncStatus(): Int {
+        return query.syncStatus
+    }
+
     fun handleRequest(request: WebResourceRequest): WebResourceResponse {
         val path = request.url.path ?: return makeErrorResponse()
 
@@ -225,6 +239,12 @@ class NativeX(private val mCtx: MainActivity) {
             makeResponse(dlService!!.shareBlobFromUrl(URLDecoder.decode(parts[4], "UTF-8")))
         } else if (path.matches(API.SHARE_LOCAL)) {
             makeResponse(dlService!!.shareLocal(parts[4].toLong()))
+        } else if (path.matches(API.CONFIG_ALLOW_MEDIA)) {
+            permissions.setAllowMedia(true)
+            if (permissions.requestMediaPermissionSync()) {
+                doMediaSync(true) // separate thread
+            }
+            makeResponse("done")
         } else {
             throw Exception("Path did not match any known API route: $path")
         }
@@ -253,4 +273,22 @@ class NativeX(private val mCtx: MainActivity) {
     private fun parseIds(ids: String): List<Long> {
         return ids.trim().split(",").map { it.toLong() }
     }
+
+    fun doMediaSync(forceFull: Boolean) {
+        if (permissions.hasAllowMedia()) {
+            // Full sync if this is the first time permission was granted
+            val fullSync = forceFull || !permissions.hasMediaPermission()
+
+            Thread {
+                // Block for media permission
+                if (!permissions.requestMediaPermissionSync()) return@Thread
+
+                // Full sync requested
+                if (fullSync) query.syncFullDb()
+
+                // Run delta sync and register hooks
+                query.initialize()
+            }.start()
+        }
+    }
 }

app/src/main/java/gallery/memories/service/HttpService.kt

@@ -63,6 +63,9 @@ class HttpService {
             // Get host name
             val host = Uri.parse(url).host
 
+            // Clear webview history
+            webView.clearHistory()
+
             // Set authorization header
             webView.loadUrl(url!!, mapOf("Authorization" to authHeader))
 

app/src/main/java/gallery/memories/service/PermissionsService.kt

@@ -0,0 +1,80 @@
+package gallery.memories.service
+
+import android.os.Build
+import androidx.activity.result.ActivityResultLauncher
+import androidx.activity.result.contract.ActivityResultContracts
+import androidx.media3.common.util.UnstableApi
+import gallery.memories.MainActivity
+import gallery.memories.R
+import java.util.concurrent.CountDownLatch
+
+@UnstableApi class PermissionsService(private val activity: MainActivity) {
+    var isGranted: Boolean = false
+    var latch: CountDownLatch? = null
+    lateinit var requestPermissionLauncher: ActivityResultLauncher<Array<String>>
+
+    fun register(): PermissionsService {
+        requestPermissionLauncher = activity.registerForActivityResult(
+            ActivityResultContracts.RequestMultiplePermissions()
+        ) { permissions ->
+            // we need all of these
+            isGranted = permissions.all { it.value }
+
+            // Persist that we have it now
+            setHasMediaPermission(isGranted)
+
+            // Release latch
+            latch?.countDown()
+        }
+
+        return this
+    }
+
+    /**
+     * Requests media permission and blocks until it is granted
+     */
+    fun requestMediaPermissionSync(): Boolean {
+        if (isGranted) return true
+
+        // Wait for response
+        latch = CountDownLatch(1)
+
+        // Request media read permission
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
+            requestPermissionLauncher.launch(
+                arrayOf(
+                    android.Manifest.permission.READ_MEDIA_IMAGES,
+                    android.Manifest.permission.READ_MEDIA_VIDEO,
+                )
+            )
+        } else {
+            requestPermissionLauncher.launch(arrayOf(android.Manifest.permission.READ_EXTERNAL_STORAGE))
+        }
+
+        latch?.await()
+
+        return isGranted
+    }
+
+    fun hasMediaPermission(): Boolean {
+        return activity.getSharedPreferences(activity.getString(R.string.preferences_key), 0)
+            .getBoolean(activity.getString(R.string.preferences_has_media_permission), false)
+    }
+
+    private fun setHasMediaPermission(v: Boolean) {
+        activity.getSharedPreferences(activity.getString(R.string.preferences_key), 0).edit()
+            .putBoolean(activity.getString(R.string.preferences_has_media_permission), v)
+            .apply()
+    }
+
+    fun hasAllowMedia(): Boolean {
+        return activity.getSharedPreferences(activity.getString(R.string.preferences_key), 0)
+            .getBoolean(activity.getString(R.string.preferences_allow_media), false)
+    }
+
+    fun setAllowMedia(v: Boolean) {
+        activity.getSharedPreferences(activity.getString(R.string.preferences_key), 0).edit()
+            .putBoolean(activity.getString(R.string.preferences_allow_media), v)
+            .apply()
+    }
+}

app/src/main/java/gallery/memories/service/TimelineQuery.kt

@@ -45,6 +45,11 @@ class TimelineQuery(private val mCtx: MainActivity) {
     var videoObserver: ContentObserver? = null
     var refreshPending: Boolean = false
 
+    // Status of synchronization process
+    // -1 = not started
+    // >0 = number of files updated
+    var syncStatus = -1
+
     init {
         // Register intent launcher for callback
         deleteIntentLauncher =
@@ -299,6 +304,7 @@ class TimelineQuery(private val mCtx: MainActivity) {
         // Count number of updates
         var updates = 0
 
+        try {
             // Iterate all images from system store
             for (image in SystemImage.cursor(
                 mCtx,
@@ -309,6 +315,7 @@ class TimelineQuery(private val mCtx: MainActivity) {
             )) {
                 insertItemDb(image)
                 updates++
+                syncStatus = updates
             }
 
             // Iterate all videos from system store
@@ -321,12 +328,21 @@ class TimelineQuery(private val mCtx: MainActivity) {
             )) {
                 insertItemDb(video)
                 updates++
+                syncStatus = updates
             }
 
             // Store last sync time
             mCtx.getSharedPreferences(mCtx.getString(R.string.preferences_key), 0).edit()
                 .putLong(mCtx.getString(R.string.preferences_last_sync_time), syncTime)
                 .apply()
+        } catch (e: Exception) {
+            Log.e(TAG, "Error syncing database", e)
+        }
+
+        // Reset sync status
+        synchronized(this) {
+            syncStatus = -1
+        }
 
         // Number of updated files
         return updates
@@ -337,6 +353,12 @@ class TimelineQuery(private val mCtx: MainActivity) {
      * @return Number of updated files
      */
     fun syncDeltaDb(): Int {
+        // Exit if already running
+        synchronized(this) {
+            if (syncStatus != -1) return 0
+            syncStatus = 0
+        }
+
         // Get last sync time
         val syncTime = mCtx.getSharedPreferences(mCtx.getString(R.string.preferences_key), 0)
             .getLong(mCtx.getString(R.string.preferences_last_sync_time), 0L)
@@ -349,6 +371,12 @@ class TimelineQuery(private val mCtx: MainActivity) {
      * @return Number of updated files
      */
     fun syncFullDb() {
+        // Exit if already running
+        synchronized(this) {
+            if (syncStatus != -1) return
+            syncStatus = 0
+        }
+
         // Flag all images for removal
         mPhotoDao.flagAll()
 

app/src/main/res/values/strings.xml

@@ -7,6 +7,7 @@
     <string name="preferences_theme_dark">themeDark</string>
     <string name="preferences_last_sync_time">lastDbSyncTime</string>
     <string name="preferences_has_media_permission">hasMediaPermission</string>
+    <string name="preferences_allow_media">allowMedia</string>
     <string name="preferences_enabled_local_folders">enabledLocalFolders</string>
 
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