Prepare to save downloaded gallery as cbz archive

app/src/main/kotlin/com/hippo/ehviewer/gallery/ArchivePageLoader.kt

@@ -15,8 +15,6 @@
  */
 package com.hippo.ehviewer.gallery
 
-import android.content.Context
-import android.net.Uri
 import android.os.ParcelFileDescriptor
 import android.util.Log
 import com.hippo.ehviewer.Settings.archivePasswds
@@ -49,17 +47,17 @@ import moe.tarsin.coroutines.withLock
 typealias PasswdInvalidator = (String) -> Boolean
 typealias PasswdProvider = suspend (PasswdInvalidator) -> String
 
-class ArchivePageLoader(context: Context, private val uri: Uri, passwdProvider: PasswdProvider) : PageLoader2(), CoroutineScope {
+class ArchivePageLoader(private val file: UniFile, passwdProvider: PasswdProvider? = null) : PageLoader2(), CoroutineScope {
     override val coroutineContext = Dispatchers.IO + Job()
     private lateinit var pfd: ParcelFileDescriptor
     private val hostJob = launch(start = CoroutineStart.LAZY) {
-        Log.d(DEBUG_TAG, "Open archive $uri")
-        pfd = context.contentResolver.openFileDescriptor(uri, "r")!!
+        Log.d(DEBUG_TAG, "Open archive ${file.uri}")
+        pfd = file.openFileDescriptor("r")
         size = openArchive(pfd.fd, pfd.statSize)
         if (size == 0) {
             return@launch
         }
-        if (needPassword()) {
+        if (passwdProvider != null && needPassword()) {
             archivePasswds?.forEach {
                 it ?: return@forEach
                 if (providePassword(it)) return@launch
@@ -80,7 +78,7 @@ class ArchivePageLoader(context: Context, private val uri: Uri, passwdProvider:
         cancel()
         closeArchive()
         pfd.close()
-        Log.d(DEBUG_TAG, "Close archive $uri successfully!")
+        Log.d(DEBUG_TAG, "Close archive ${file.uri} successfully!")
         super.stop()
     }
 

app/src/main/kotlin/eu/kanade/tachiyomi/ui/reader/ReaderActivity.kt

@@ -72,6 +72,8 @@ import com.hippo.ehviewer.client.EhUrl
 import com.hippo.ehviewer.client.data.BaseGalleryInfo
 import com.hippo.ehviewer.collectAsState
 import com.hippo.ehviewer.databinding.ReaderActivityBinding
+import com.hippo.ehviewer.download.DownloadManager
+import com.hippo.ehviewer.download.downloadDir
 import com.hippo.ehviewer.gallery.ArchivePageLoader
 import com.hippo.ehviewer.gallery.EhPageLoader
 import com.hippo.ehviewer.gallery.PageLoader2
@@ -118,7 +120,6 @@ import kotlinx.coroutines.flow.onEach
 import kotlinx.coroutines.flow.sample
 import kotlinx.coroutines.launch
 import moe.tarsin.coroutines.runSuspendCatching
-import splitties.init.appCtx
 import splitties.systemservices.clipboardManager
 
 class GalleryModel : ViewModel() {
@@ -166,7 +167,12 @@ class ReaderActivity : EhActivity() {
         }
 
         if (ACTION_EH == mAction) {
-            mGalleryInfo?.let { mGalleryProvider = EhPageLoader(it) }
+            mGalleryInfo?.let {
+                mGalleryProvider = DownloadManager.getDownloadInfo(it.gid)?.downloadDir
+                    ?.findFile("${it.gid}.cbz")
+                    ?.let { file -> ArchivePageLoader(file) }
+                    ?: EhPageLoader(it)
+            }
         } else if (Intent.ACTION_VIEW == mAction) {
             if (mUri != null) {
                 try {
@@ -179,10 +185,7 @@ class ReaderActivity : EhActivity() {
                     Toast.makeText(this, R.string.error_reading_failed, Toast.LENGTH_SHORT).show()
                 }
 
-                mGalleryProvider = ArchivePageLoader(
-                    appCtx,
-                    mUri!!,
-                ) { invalidator ->
+                mGalleryProvider = ArchivePageLoader(mUri!!.asUniFile()) { invalidator ->
                     runCatching {
                         dialogState.awaitInputText(
                             title = getString(R.string.archive_need_passwd),