what were i thinking?!

# Conflicts:
#	app/build.gradle
#	app/release/app-release.apk
#	app/release/output-metadata.json

.idea/codeStyles/Project.xml

@@ -1,9 +1,6 @@
 <component name="ProjectCodeStyleConfiguration">
   <code_scheme name="Project" version="173">
     <option name="RIGHT_MARGIN" value="120" />
-    <AndroidXmlCodeStyleSettings>
-      <option name="ARRANGEMENT_SETTINGS_MIGRATED_TO_191" value="true" />
-    </AndroidXmlCodeStyleSettings>
     <JetCodeStyleSettings>
       <option name="CODE_STYLE_DEFAULTS" value="KOTLIN_OFFICIAL" />
     </JetCodeStyleSettings>

.idea/gradle.xml

@@ -1,8 +1,10 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
+  <component name="GradleMigrationSettings" migrationVersion="1" />
   <component name="GradleSettings">
     <option name="linkedExternalProjectsSettings">
       <GradleProjectSettings>
+        <option name="testRunner" value="PLATFORM" />
         <option name="distributionType" value="DEFAULT_WRAPPED" />
         <option name="externalProjectPath" value="$PROJECT_DIR$" />
         <option name="modules">

.idea/jarRepositories.xml

@@ -0,0 +1,55 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="RemoteRepositoriesConfiguration">
+    <remote-repository>
+      <option name="id" value="central" />
+      <option name="name" value="Maven Central repository" />
+      <option name="url" value="https://repo1.maven.org/maven2" />
+    </remote-repository>
+    <remote-repository>
+      <option name="id" value="jboss.community" />
+      <option name="name" value="JBoss Community repository" />
+      <option name="url" value="https://repository.jboss.org/nexus/content/repositories/public/" />
+    </remote-repository>
+    <remote-repository>
+      <option name="id" value="maven2" />
+      <option name="name" value="maven2" />
+      <option name="url" value="http://guardian.github.com/maven/repo-releases" />
+    </remote-repository>
+    <remote-repository>
+      <option name="id" value="BintrayJCenter" />
+      <option name="name" value="BintrayJCenter" />
+      <option name="url" value="https://jcenter.bintray.com/" />
+    </remote-repository>
+    <remote-repository>
+      <option name="id" value="maven" />
+      <option name="name" value="maven" />
+      <option name="url" value="https://jitpack.io" />
+    </remote-repository>
+    <remote-repository>
+      <option name="id" value="Google" />
+      <option name="name" value="Google" />
+      <option name="url" value="https://dl.google.com/dl/android/maven2/" />
+    </remote-repository>
+    <remote-repository>
+      <option name="id" value="MavenRepo" />
+      <option name="name" value="MavenRepo" />
+      <option name="url" value="https://repo.maven.apache.org/maven2/" />
+    </remote-repository>
+    <remote-repository>
+      <option name="id" value="maven2" />
+      <option name="name" value="maven2" />
+      <option name="url" value="https://guardian.github.com/maven/repo-releases" />
+    </remote-repository>
+    <remote-repository>
+      <option name="id" value="maven3" />
+      <option name="name" value="maven3" />
+      <option name="url" value="https://s3.amazonaws.com/fabric-artifacts-private/internal-snapshots" />
+    </remote-repository>
+    <remote-repository>
+      <option name="id" value="maven4" />
+      <option name="name" value="maven4" />
+      <option name="url" value="https://maven.fabric.io/public" />
+    </remote-repository>
+  </component>
+</project>

README.md

@@ -4,7 +4,6 @@
 *Pupil, Hitomi.la viewer for Android*  
 
 [![](https://discordapp.com/api/guilds/610452916612104194/embed.png?style=banner2)](https://discord.gg/Stj4b5v)  
-I can speak English, Japanese and Korean. If you have any questions, head over to my discord server or DM me!
 
 # Screenshot
 ![Main Screen](https://github.com/tom5079/Pupil/blob/gh-pages/assets/images/main-screenshot.png?raw=true)

app/build.gradle

@@ -7,7 +7,7 @@ apply plugin: 'kotlinx-serialization'
 if (file("google-services.json").exists() && file("src/debug/google-services.json").exists()) {
     logger.lifecycle("Firebase Enabled")
     apply plugin: 'com.google.gms.google-services'
-    apply plugin: 'io.fabric'
+    apply plugin: 'com.google.firebase.crashlytics'
     apply plugin: 'com.google.firebase.firebase-perf'
 } else {
     logger.lifecycle("Firebase Disabled")
@@ -19,8 +19,8 @@ android {
         applicationId "xyz.quaver.pupil"
         minSdkVersion 16
         targetSdkVersion 29
-        versionCode 43
-        versionName "4.7"
+        versionCode 57
+        versionName "4.20-hotfix2"
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
         multiDexEnabled true
         vectorDrawables.useSupportLibrary = true
@@ -35,9 +35,6 @@ android {
             proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
         }
         release {
-            minifyEnabled true
-            shrinkResources true
-
             buildConfigField('Boolean', 'CENSOR', 'false')
             proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
         }
@@ -49,42 +46,44 @@ android {
         sourceCompatibility JavaVersion.VERSION_1_8
         targetCompatibility JavaVersion.VERSION_1_8
     }
-    buildToolsVersion = '29.0.2'
+    buildToolsVersion = '29.0.3'
 }
 
 dependencies {
-    def markwonVersion = "3.0.1"
+    def markwonVersion = '3.1.0'
 
-    implementation fileTree(dir: 'libs', include: ['*.jar'])
+    implementation fileTree(dir: 'libs', include: ['*.jar', '*.aar'])
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8:$kotlin_version"
-    implementation "org.jetbrains.kotlin:kotlin-reflect:$kotlin_version"
-    implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-core:1.3.3'
-    implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-android:1.3.3'
-    implementation "org.jetbrains.kotlinx:kotlinx-serialization-runtime:0.14.0"
+    implementation "org.jetbrains.kotlinx:kotlinx-coroutines-core:1.3.7"
+    implementation "org.jetbrains.kotlinx:kotlinx-coroutines-android:1.3.7"
+    implementation "org.jetbrains.kotlinx:kotlinx-serialization-runtime:0.20.0"
     implementation 'androidx.appcompat:appcompat:1.1.0'
     implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
-    implementation 'androidx.preference:preference:1.1.0'
+    implementation 'androidx.preference:preference:1.1.1'
     implementation 'androidx.gridlayout:gridlayout:1.0.0'
     implementation "androidx.biometric:biometric:1.0.1"
-    implementation 'com.android.support:multidex:1.0.3'
+    implementation 'androidx.multidex:multidex:2.0.1'
     implementation "com.daimajia.swipelayout:library:1.2.0@aar"
-    implementation 'com.google.android.material:material:1.2.0-alpha05'
-    implementation 'com.google.firebase:firebase-core:17.2.2'
-    implementation 'com.google.firebase:firebase-perf:19.0.5'
-    implementation 'com.crashlytics.sdk.android:crashlytics:2.10.1'
+    implementation 'com.google.android.material:material:1.3.0-alpha02'
+    implementation 'com.google.firebase:firebase-core:17.4.4'
+    implementation 'com.google.firebase:firebase-analytics:17.4.4'
+    implementation 'com.google.firebase:firebase-crashlytics:17.1.1'
+    implementation 'com.google.firebase:firebase-perf:19.0.8'
     implementation 'com.github.arimorty:floatingsearchview:2.1.1'
     implementation 'com.github.clans:fab:1.6.4'
-
     implementation 'com.github.bumptech.glide:glide:4.11.0'
+    implementation "com.github.bumptech.glide:okhttp3-integration:4.11.0"
+    implementation 'com.github.bumptech.glide:annotations:4.11.0'
     annotationProcessor 'com.github.bumptech.glide:compiler:4.11.0'
     kapt 'com.github.bumptech.glide:compiler:4.11.0'
     implementation ("com.github.bumptech.glide:recyclerview-integration:4.11.0") {
         transitive = false
     }
-
+    implementation 'com.tbuonomo.andrui:viewpagerdotsindicator:4.1.2'
     implementation 'net.rdrei.android.dirchooser:library:3.2@aar'
     implementation 'com.github.chrisbanes:PhotoView:2.3.0'
     implementation 'com.andrognito.patternlockview:patternlockview:1.0.0'
+    //implementation 'com.andrognito.pinlockview:pinlockview:2.1.0'
     implementation "ru.noties.markwon:core:${markwonVersion}"
     testImplementation 'junit:junit:4.13'
     androidTestImplementation 'androidx.test.ext:junit:1.1.1'

app/proguard-rules.pro

@@ -23,8 +23,16 @@
 -dontobfuscate
 
 -keep public class * implements com.bumptech.glide.module.GlideModule
--keep public class * extends com.bumptech.glide.module.AppGlideModule
+-keep class * extends com.bumptech.glide.module.AppGlideModule {
+ <init>(...);
+}
 -keep public enum com.bumptech.glide.load.ImageHeaderParser$** {
   **[] $VALUES;
   public *;
-}
+}
+-keep class com.bumptech.glide.load.data.ParcelFileDescriptorRewinder$InternalRewinder {
+  *** rewind();
+}
+
+-keep public class * extends com.bumptech.glide.module.AppGlideModule
+-keep class com.bumptech.glide.GeneratedAppGlideModuleImpl

app/release/output-metadata.json

@@ -0,0 +1,20 @@
+{
+  "version": 1,
+  "artifactType": {
+    "type": "APK",
+    "kind": "Directory"
+  },
+  "applicationId": "xyz.quaver.pupil",
+  "variantName": "release",
+  "elements": [
+    {
+      "type": "SINGLE",
+      "filters": [],
+      "properties": [],
+      "versionCode": 57,
+      "versionName": "4.20-hotfix2",
+      "enabled": true,
+      "outputFile": "app-release.apk"
+    }
+  ]
+}

app/release/output.json

@@ -1 +0,0 @@
-[{"outputType":{"type":"APK"},"apkData":{"type":"MAIN","splits":[],"versionCode":43,"versionName":"4.7","enabled":true,"outputFile":"app-release.apk","fullName":"release","baseName":"release"},"path":"app-release.apk","properties":{}}]

app/src/androidTest/java/xyz/quaver/pupil/ExampleInstrumentedTest.kt

@@ -21,13 +21,13 @@
 package xyz.quaver.pupil
 
 import android.util.Log
-import androidx.core.content.ContextCompat
 import androidx.test.ext.junit.runners.AndroidJUnit4
 import androidx.test.platform.app.InstrumentationRegistry
 import androidx.test.rule.ActivityTestRule
 import kotlinx.coroutines.runBlocking
 import org.junit.Test
 import org.junit.runner.RunWith
+import xyz.quaver.hitomi.getGalleryIDsFromNozomi
 import xyz.quaver.hiyobi.cookie
 import xyz.quaver.hiyobi.createImgList
 import xyz.quaver.hiyobi.getReader
@@ -35,6 +35,8 @@ import xyz.quaver.hiyobi.user_agent
 import xyz.quaver.pupil.ui.LockActivity
 import xyz.quaver.pupil.util.download.Cache
 import xyz.quaver.pupil.util.download.DownloadWorker
+import xyz.quaver.pupil.util.getDownloadDirectory
+import java.io.InputStreamReader
 import java.net.URL
 import javax.net.ssl.HttpsURLConnection
 
@@ -57,11 +59,20 @@ class ExampleInstrumentedTest {
         val activityTestRule = ActivityTestRule(LockActivity::class.java)
         val appContext = InstrumentationRegistry.getInstrumentation().targetContext
 
-        ContextCompat.getExternalFilesDirs(appContext, null).forEachIndexed { index, file ->
-            Log.i("PUPILD", "$index: ${file?.absolutePath}")
+        Runtime.getRuntime().exec("du -hs " + getDownloadDirectory(appContext)).let {
+            InputStreamReader(it.inputStream).readLines().forEach { res ->
+                Log.i("PUPILD", res)
+            }
         }
     }
 
+    @Test
+    fun test_nozomi() {
+        val nozomi = getGalleryIDsFromNozomi(null, "index", "all")
+
+        Log.i("PUPILD", nozomi.size.toString())
+    }
+
     @Test
     fun test_doSearch() {
         val reader = getReader( 1426382)
@@ -91,7 +102,7 @@ class ExampleInstrumentedTest {
         while(worker.progress.indexOfKey(galleryID) < 0 || worker.progress[galleryID] != null) {
             Log.i("PUPILD", worker.progress[galleryID]?.joinToString(" ") ?: "null")
 
-            if (worker.progress[galleryID]?.all { !it.isFinite() } == true)
+            if (worker.progress[galleryID]?.all { it.isInfinite() } == true)
                 break
         }
 
@@ -105,9 +116,9 @@ class ExampleInstrumentedTest {
         val galleryID = 1561552
 
         runBlocking {
-            Log.i("PUPILD", Cache(context).getReader(galleryID)?.title ?: "null")
+            Log.i("PUPILD", Cache(context).getReader(galleryID)?.galleryInfo?.title ?: "null")
         }
 
-        Log.i("PUPILD", Cache(context).getReaderOrNull(galleryID)?.title ?: "null")
+        Log.i("PUPILD", Cache(context).getReaderOrNull(galleryID)?.galleryInfo?.title ?: "null")
     }
 }

app/src/main/AndroidManifest.xml

@@ -8,6 +8,8 @@
     <uses-permission android:name="android.permission.USE_BIOMETRIC" />
     <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
+    <uses-permission android:name="android.permission.FOREGROUND_SERVICE"/>
+
 
     <application
         android:name=".Pupil"
@@ -19,7 +21,8 @@
         android:supportsRtl="true"
         android:theme="@style/AppTheme"
         tools:replace="android:theme"
-        android:requestLegacyExternalStorage="true">
+        android:requestLegacyExternalStorage="true"
+        tools:ignore="UnusedAttribute">
 
         <provider
             android:authorities="${applicationId}.provider"
@@ -33,6 +36,12 @@
 
         </provider>
 
+        <receiver android:name=".BroadcastReciever" android:exported="true">
+            <intent-filter>
+                <action android:name="android.intent.action.DOWNLOAD_COMPLETE"/>
+            </intent-filter>
+        </receiver>
+
         <activity android:name=".ui.LockActivity" />
         <activity
             android:name=".ui.ReaderActivity"
@@ -44,6 +53,61 @@
                 <category android:name="android.intent.category.DEFAULT" />
                 <category android:name="android.intent.category.BROWSABLE" />
 
+                <data
+                    android:host="hitomi.la"
+                    android:pathPrefix="/galleries"
+                    android:scheme="http" />
+            </intent-filter>
+            <intent-filter>
+                <action android:name="android.intent.action.VIEW" />
+
+                <category android:name="android.intent.category.DEFAULT" />
+                <category android:name="android.intent.category.BROWSABLE" />
+
+                <data
+                    android:host="hitomi.la"
+                    android:pathPrefix="/manga"
+                    android:scheme="http" />
+            </intent-filter>
+            <intent-filter>
+                <action android:name="android.intent.action.VIEW" />
+
+                <category android:name="android.intent.category.DEFAULT" />
+                <category android:name="android.intent.category.BROWSABLE" />
+
+                <data
+                    android:host="hitomi.la"
+                    android:pathPrefix="/doujinshi"
+                    android:scheme="http" />
+            </intent-filter>
+            <intent-filter>
+                <action android:name="android.intent.action.VIEW" />
+
+                <category android:name="android.intent.category.DEFAULT" />
+                <category android:name="android.intent.category.BROWSABLE" />
+
+                <data
+                    android:host="hitomi.la"
+                    android:pathPrefix="/cg"
+                    android:scheme="http" />
+            </intent-filter>
+            <intent-filter>
+                <action android:name="android.intent.action.VIEW" />
+
+                <category android:name="android.intent.category.DEFAULT" />
+                <category android:name="android.intent.category.BROWSABLE" />
+
+                <data
+                    android:host="hitomi.la"
+                    android:pathPrefix="/reader"
+                    android:scheme="http" />
+            </intent-filter>
+            <intent-filter>
+                <action android:name="android.intent.action.VIEW" />
+
+                <category android:name="android.intent.category.DEFAULT" />
+                <category android:name="android.intent.category.BROWSABLE" />
+
                 <data
                     android:host="hitomi.la"
                     android:pathPrefix="/galleries"
@@ -55,6 +119,61 @@
                 <category android:name="android.intent.category.DEFAULT" />
                 <category android:name="android.intent.category.BROWSABLE" />
 
+                <data
+                    android:host="hitomi.la"
+                    android:pathPrefix="/manga"
+                    android:scheme="https" />
+            </intent-filter>
+            <intent-filter>
+                <action android:name="android.intent.action.VIEW" />
+
+                <category android:name="android.intent.category.DEFAULT" />
+                <category android:name="android.intent.category.BROWSABLE" />
+
+                <data
+                    android:host="hitomi.la"
+                    android:pathPrefix="/doujinshi"
+                    android:scheme="https" />
+            </intent-filter>
+            <intent-filter>
+                <action android:name="android.intent.action.VIEW" />
+
+                <category android:name="android.intent.category.DEFAULT" />
+                <category android:name="android.intent.category.BROWSABLE" />
+
+                <data
+                    android:host="hitomi.la"
+                    android:pathPrefix="/cg"
+                    android:scheme="https" />
+            </intent-filter>
+            <intent-filter>
+                <action android:name="android.intent.action.VIEW" />
+
+                <category android:name="android.intent.category.DEFAULT" />
+                <category android:name="android.intent.category.BROWSABLE" />
+
+                <data
+                    android:host="hitomi.la"
+                    android:pathPrefix="/reader"
+                    android:scheme="https" />
+            </intent-filter>
+            <intent-filter>
+                <action android:name="android.intent.action.VIEW" />
+
+                <category android:name="android.intent.category.DEFAULT" />
+                <category android:name="android.intent.category.BROWSABLE" />
+
+                <data
+                    android:host="hiyobi.me"
+                    android:scheme="http"
+                    android:pathPrefix="/reader" />
+            </intent-filter>
+            <intent-filter>
+                <action android:name="android.intent.action.VIEW" />
+
+                <category android:name="android.intent.category.DEFAULT" />
+                <category android:name="android.intent.category.BROWSABLE" />
+
                 <data
                     android:host="hiyobi.me"
                     android:pathPrefix="/reader"
@@ -69,17 +188,6 @@
                 <data
                     android:host="e-hentai.org"
                     android:pathPrefix="/g"
-                    android:scheme="https" />
-            </intent-filter>
-            <intent-filter>
-                <action android:name="android.intent.action.VIEW" />
-
-                <category android:name="android.intent.category.DEFAULT" />
-                <category android:name="android.intent.category.BROWSABLE" />
-
-                <data
-                    android:host="hitomi.la"
-                    android:pathPrefix="/galleries"
                     android:scheme="http" />
             </intent-filter>
             <intent-filter>
@@ -88,21 +196,10 @@
                 <category android:name="android.intent.category.DEFAULT" />
                 <category android:name="android.intent.category.BROWSABLE" />
 
-                <data
-                    android:host="hiyobi.me"
-                    android:scheme="http"
-                    android:pathPrefix="/reader" />
-            </intent-filter>
-            <intent-filter>
-                <action android:name="android.intent.action.VIEW" />
-
-                <category android:name="android.intent.category.DEFAULT" />
-                <category android:name="android.intent.category.BROWSABLE" />
-
                 <data
                     android:host="e-hentai.org"
                     android:pathPrefix="/g"
-                    android:scheme="http" />
+                    android:scheme="https" />
             </intent-filter>
         </activity>
         <activity

app/src/main/java/com/arlib/floatingsearchview/FloatingSearchViewDayNight.kt

@@ -0,0 +1,35 @@
+/*
+ *     Pupil, Hitomi.la viewer for Android
+ *     Copyright (C) 2020  tom5079
+ *
+ *     This program is free software: you can redistribute it and/or modify
+ *     it under the terms of the GNU General Public License as published by
+ *     the Free Software Foundation, either version 3 of the License, or
+ *     (at your option) any later version.
+ *
+ *     This program is distributed in the hope that it will be useful,
+ *     but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *     GNU General Public License for more details.
+ *
+ *     You should have received a copy of the GNU General Public License
+ *     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.arlib.floatingsearchview
+
+import android.content.Context
+import android.os.Parcelable
+import android.util.AttributeSet
+
+class FloatingSearchViewDayNight @JvmOverloads constructor(
+    context: Context,
+    attrs: AttributeSet? = null)
+    : FloatingSearchView(context, attrs) {
+
+    // hack to remove color attributes which should not be reused
+    override fun onSaveInstanceState(): Parcelable? {
+        super.onSaveInstanceState()
+        return null
+    }
+}

app/src/main/java/xyz/quaver/pupil/BroadcastReciever.kt

@@ -0,0 +1,103 @@
+/*
+ *     Pupil, Hitomi.la viewer for Android
+ *     Copyright (C) 2020  tom5079
+ *
+ *     This program is free software: you can redistribute it and/or modify
+ *     it under the terms of the GNU General Public License as published by
+ *     the Free Software Foundation, either version 3 of the License, or
+ *     (at your option) any later version.
+ *
+ *     This program is distributed in the hope that it will be useful,
+ *     but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *     GNU General Public License for more details.
+ *
+ *     You should have received a copy of the GNU General Public License
+ *     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package xyz.quaver.pupil
+
+import android.app.DownloadManager
+import android.app.PendingIntent
+import android.content.BroadcastReceiver
+import android.content.Context
+import android.content.Intent
+import android.net.Uri
+import android.webkit.MimeTypeMap
+import androidx.core.app.NotificationCompat
+import androidx.core.app.NotificationManagerCompat
+import androidx.core.content.FileProvider
+import androidx.preference.PreferenceManager
+import xyz.quaver.pupil.util.NOTIFICATION_ID_UPDATE
+import xyz.quaver.pupil.util.cancelImport
+import java.io.File
+
+class BroadcastReciever : BroadcastReceiver() {
+
+    companion object {
+        const val ACTION_CANCEL_IMPORT = "ACTION_CANCEL_IMPORT"
+
+        const val EXTRA_IMPORT_NOTIFICATION_ID = "EXTRA_IMPORT_NOTIFICATION_ID"
+    }
+
+    override fun onReceive(context: Context?, intent: Intent?) {
+        context ?: return
+
+        when (intent?.action) {
+            DownloadManager.ACTION_DOWNLOAD_COMPLETE -> {
+
+                // Validate download
+
+                val preference = PreferenceManager.getDefaultSharedPreferences(context)
+                val downloadID = preference.getLong("update_download_id", -1)
+                val downloadManager = context.getSystemService(Context.DOWNLOAD_SERVICE) as DownloadManager
+
+                if (intent.getLongExtra(DownloadManager.EXTRA_DOWNLOAD_ID, -1) != downloadID)
+                    return
+
+                // Get target uri
+
+                val query = DownloadManager.Query()
+                    .setFilterById(downloadID)
+
+                val uri = downloadManager.query(query).use { cursor ->
+                    cursor.moveToFirst()
+
+                    cursor.getString(cursor.getColumnIndex(DownloadManager.COLUMN_LOCAL_URI)).let {
+                        val uri = Uri.parse(it)
+
+                        when (uri.scheme) {
+                            "file" ->
+                                FileProvider.getUriForFile(context, context.applicationContext.packageName + ".provider", File(uri.path!!))
+                            "content" -> uri
+                            else -> return
+                        }
+                    }
+                }
+
+                // Build Notification
+
+                val notificationManager = NotificationManagerCompat.from(context)
+
+                val pendingIntent = PendingIntent.getActivity(context, 0, Intent(Intent.ACTION_VIEW).apply {
+                    flags = Intent.FLAG_ACTIVITY_CLEAR_TOP or Intent.FLAG_GRANT_READ_URI_PERMISSION or Intent.FLAG_ACTIVITY_NEW_TASK
+                    setDataAndType(uri, MimeTypeMap.getSingleton().getMimeTypeFromExtension("apk"))
+                }, 0)
+
+                val notification = NotificationCompat.Builder(context, "update")
+                    .setSmallIcon(android.R.drawable.stat_sys_download_done)
+                    .setContentTitle(context.getText(R.string.update_download_completed))
+                    .setContentText(context.getText(R.string.update_download_completed_description))
+                    .setContentIntent(pendingIntent)
+                    .build()
+
+                notificationManager.notify(NOTIFICATION_ID_UPDATE, notification)
+            }
+            ACTION_CANCEL_IMPORT -> {
+                cancelImport = true
+            }
+        }
+    }
+
+}

app/src/main/java/xyz/quaver/pupil/Pupil.kt

@@ -31,10 +31,12 @@ import com.google.android.gms.common.GooglePlayServicesNotAvailableException
 import com.google.android.gms.common.GooglePlayServicesRepairableException
 import com.google.android.gms.security.ProviderInstaller
 import com.google.firebase.analytics.FirebaseAnalytics
+import com.google.firebase.crashlytics.FirebaseCrashlytics
 import xyz.quaver.proxy
 import xyz.quaver.pupil.util.Histories
 import xyz.quaver.pupil.util.getProxy
 import java.io.File
+import java.util.*
 
 class Pupil : MultiDexApplication() {
 
@@ -48,10 +50,23 @@ class Pupil : MultiDexApplication() {
     override fun onCreate() {
         val preference = PreferenceManager.getDefaultSharedPreferences(this)
 
+        val userID =
+            if (preference.getString("user_id", "").isNullOrEmpty()) {
+                UUID.randomUUID().toString().also {
+                    preference.edit().putString("user_id", it).apply()
+                }
+            } else
+                preference.getString("user_id", "") ?: ""
+
+        FirebaseCrashlytics.getInstance().setUserId(userID)
+
         proxy = getProxy(this)
 
         try {
-            preference.getString("dl_location", null)
+            preference.getString("dl_location", null).also {
+                if (!File(it!!).canWrite())
+                    throw Exception()
+            }
         } catch (e: Exception) {
             preference.edit().remove("dl_location").apply()
         }
@@ -72,13 +87,27 @@ class Pupil : MultiDexApplication() {
 
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
             val manager = getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
-            val channel = NotificationChannel("download", getString(R.string.channel_download), NotificationManager.IMPORTANCE_MIN).apply {
+
+            manager.createNotificationChannel(NotificationChannel("download", getString(R.string.channel_download), NotificationManager.IMPORTANCE_LOW).apply {
                 description = getString(R.string.channel_download_description)
                 enableLights(false)
                 enableVibration(false)
                 lockscreenVisibility = Notification.VISIBILITY_SECRET
-            }
-            manager.createNotificationChannel(channel)
+            })
+
+            manager.createNotificationChannel(NotificationChannel("update", getString(R.string.channel_update), NotificationManager.IMPORTANCE_HIGH).apply {
+                description = getString(R.string.channel_update_description)
+                enableLights(true)
+                enableVibration(true)
+                lockscreenVisibility = Notification.VISIBILITY_SECRET
+            })
+
+            manager.createNotificationChannel(NotificationChannel("import", getString(R.string.channel_update), NotificationManager.IMPORTANCE_HIGH).apply {
+                description = getString(R.string.channel_update_description)
+                enableLights(false)
+                enableVibration(false)
+                lockscreenVisibility = Notification.VISIBILITY_SECRET
+            })
         }
 
         AppCompatDelegate.setCompatVectorFromResourcesEnabled(true)

app/src/main/java/xyz/quaver/pupil/PupilGlideModule.kt

@@ -0,0 +1,42 @@
+/*
+ *     Pupil, Hitomi.la viewer for Android
+ *     Copyright (C) 2020  tom5079
+ *
+ *     This program is free software: you can redistribute it and/or modify
+ *     it under the terms of the GNU General Public License as published by
+ *     the Free Software Foundation, either version 3 of the License, or
+ *     (at your option) any later version.
+ *
+ *     This program is distributed in the hope that it will be useful,
+ *     but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *     GNU General Public License for more details.
+ *
+ *     You should have received a copy of the GNU General Public License
+ *     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package xyz.quaver.pupil
+
+import android.content.Context
+import com.bumptech.glide.Glide
+import com.bumptech.glide.Registry
+import com.bumptech.glide.annotation.GlideModule
+import com.bumptech.glide.integration.okhttp3.OkHttpUrlLoader
+import com.bumptech.glide.load.model.GlideUrl
+import com.bumptech.glide.module.AppGlideModule
+import xyz.quaver.pupil.util.download.DownloadWorker
+import java.io.InputStream
+
+@GlideModule
+class PupilGlideModule : AppGlideModule() {
+
+    override fun registerComponents(context: Context, glide: Glide, registry: Registry) {
+        registry.append(
+            GlideUrl::class.java,
+            InputStream::class.java,
+            OkHttpUrlLoader.Factory(DownloadWorker.getInstance(context).client)
+        )
+    }
+
+}

app/src/main/java/xyz/quaver/pupil/adapters/GalleryBlockAdapter.kt

@@ -28,11 +28,12 @@ import android.view.ViewGroup
 import android.widget.LinearLayout
 import androidx.cardview.widget.CardView
 import androidx.core.content.ContextCompat
+import androidx.preference.PreferenceManager
 import androidx.recyclerview.widget.RecyclerView
 import androidx.swiperefreshlayout.widget.CircularProgressDrawable
 import androidx.vectordrawable.graphics.drawable.Animatable2Compat
 import androidx.vectordrawable.graphics.drawable.AnimatedVectorDrawableCompat
-import com.bumptech.glide.Glide
+import com.bumptech.glide.RequestManager
 import com.bumptech.glide.load.engine.DiskCacheStrategy
 import com.daimajia.swipe.SwipeLayout
 import com.daimajia.swipe.adapters.RecyclerSwipeAdapter
@@ -42,20 +43,21 @@ import kotlinx.android.synthetic.main.item_galleryblock.view.*
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
 import xyz.quaver.hitomi.GalleryBlock
+import xyz.quaver.hitomi.getReader
 import xyz.quaver.pupil.BuildConfig
 import xyz.quaver.pupil.Pupil
 import xyz.quaver.pupil.R
 import xyz.quaver.pupil.types.Tag
 import xyz.quaver.pupil.util.Histories
 import xyz.quaver.pupil.util.download.Cache
-import xyz.quaver.pupil.util.download.DownloadWorker
 import xyz.quaver.pupil.util.wordCapitalize
 import java.util.*
 import kotlin.collections.ArrayList
 import kotlin.concurrent.schedule
 
-class GalleryBlockAdapter(context: Context, private val galleries: List<GalleryBlock>) : RecyclerSwipeAdapter<RecyclerView.ViewHolder>(), SwipeAdapterInterface {
+class GalleryBlockAdapter(private val glide: RequestManager, private val galleries: List<GalleryBlock>) : RecyclerSwipeAdapter<RecyclerView.ViewHolder>(), SwipeAdapterInterface {
 
     enum class ViewType {
         NEXT,
@@ -63,20 +65,20 @@ class GalleryBlockAdapter(context: Context, private val galleries: List<GalleryB
         PREV
     }
 
-    private val glide = Glide.with(context)
     private lateinit var favorites: Histories
 
     val timer = Timer()
 
+    var isThin = false
+
     inner class GalleryViewHolder(val view: View) : RecyclerView.ViewHolder(view) {
         var timerTask: TimerTask? = null
 
         private fun updateProgress(context: Context, galleryID: Int) {
-            val cache = Cache(context).getCachedGallery(galleryID)
             val reader = Cache(context).getReaderOrNull(galleryID)
 
             CoroutineScope(Dispatchers.Main).launch {
-                if (reader == null) {
+                if (reader == null || PreferenceManager.getDefaultSharedPreferences(context).getBoolean("cache_disable", false)) {
                     view.galleryblock_progressbar.visibility = View.GONE
                     view.galleryblock_progress_complete.visibility = View.GONE
                     return@launch
@@ -84,9 +86,7 @@ class GalleryBlockAdapter(context: Context, private val galleries: List<GalleryB
 
                 with(view.galleryblock_progressbar) {
 
-                    progress = cache.listFiles()?.count { file ->
-                        Regex("^[0-9]+.+\$").matches(file.name)
-                    } ?: 0
+                    progress = Cache(context).getImages(galleryID)?.size ?: 0
 
                     if (visibility == View.GONE) {
                         visibility = View.VISIBLE
@@ -126,6 +126,10 @@ class GalleryBlockAdapter(context: Context, private val galleries: List<GalleryB
                 val artists = galleryBlock.artists
                 val series = galleryBlock.series
 
+                if (isThin)
+                    galleryblock_thumbnail.layoutParams.width = context.resources.getDimensionPixelSize(
+                        R.dimen.galleryblock_thumbnail_thin
+                    )
                 galleryblock_thumbnail.setImageDrawable(CircularProgressDrawable(context).also {
                     it.start()
                 })
@@ -138,16 +142,18 @@ class GalleryBlockAdapter(context: Context, private val galleries: List<GalleryB
                             null
                     }
 
-                    glide
-                        .load(thumbnail)
-                        .skipMemoryCache(true)
-                        .diskCacheStrategy(DiskCacheStrategy.NONE)
-                        .error(R.drawable.image_broken_variant)
-                        .apply {
-                            if (BuildConfig.CENSOR)
-                                override(5, 8)
-                        }
-                        .into(galleryblock_thumbnail)
+                    galleryblock_thumbnail.post {
+                        glide
+                            .load(thumbnail)
+                            .skipMemoryCache(true)
+                            .diskCacheStrategy(DiskCacheStrategy.NONE)
+                            .error(R.drawable.image_broken_variant)
+                            .apply {
+                                if (BuildConfig.CENSOR)
+                                    override(5, 8)
+                            }
+                            .into(galleryblock_thumbnail)
+                    }
                 }
 
                 //Check cache
@@ -215,12 +221,12 @@ class GalleryBlockAdapter(context: Context, private val galleries: List<GalleryB
                             "male" -> {
                                 setChipBackgroundColorResource(R.color.material_blue_700)
                                 setTextColor(ContextCompat.getColor(context, android.R.color.white))
-                                ContextCompat.getDrawable(context, R.drawable.ic_gender_male_white)
+                                ContextCompat.getDrawable(context, R.drawable.gender_male)
                             }
                             "female" -> {
                                 setChipBackgroundColorResource(R.color.material_pink_600)
                                 setTextColor(ContextCompat.getColor(context, android.R.color.white))
-                                ContextCompat.getDrawable(context, R.drawable.ic_gender_female_white)
+                                ContextCompat.getDrawable(context, R.drawable.gender_female)
                             }
                             else -> null
                         }
@@ -234,6 +240,15 @@ class GalleryBlockAdapter(context: Context, private val galleries: List<GalleryB
                 }
 
                 galleryblock_id.text = galleryBlock.id.toString()
+                galleryblock_pagecount.text = "-"
+                CoroutineScope(Dispatchers.IO).launch {
+                    val pageCount = kotlin.runCatching {
+                        getReader(galleryBlock.id).galleryInfo.files.size
+                    }.getOrNull() ?: return@launch
+                    withContext(Dispatchers.Main) {
+                        galleryblock_pagecount.text = context.getString(R.string.galleryblock_pagecount, pageCount)
+                    }
+                }
 
                 if (!::favorites.isInitialized)
                     favorites = (context.applicationContext as Pupil).favorites
@@ -264,6 +279,14 @@ class GalleryBlockAdapter(context: Context, private val galleries: List<GalleryB
                         }
                     }
                 }
+
+
+                // Make some views invisible to make it thinner
+                if (isThin) {
+                    galleryblock_language.visibility = View.GONE
+                    galleryblock_type.visibility = View.GONE
+                    galleryblock_tag_group.visibility = View.GONE
+                }
             }
         }
     }
@@ -341,10 +364,10 @@ class GalleryBlockAdapter(context: Context, private val galleries: List<GalleryB
                     mItemManger.closeAllExcept(layout)
 
                     holder.view.galleryblock_download.text =
-                        if (DownloadWorker.getInstance(holder.view.context).progress.indexOfKey(gallery.id) < 0)
-                            holder.view.context.getString(R.string.main_download)
-                        else
+                        if (Cache(holder.view.context).isDownloading(gallery.id))
                             holder.view.context.getString(android.R.string.cancel)
+                        else
+                            holder.view.context.getString(R.string.main_download)
                 }
 
                 override fun onClose(layout: SwipeLayout?) {}

app/src/main/java/xyz/quaver/pupil/adapters/MirrorAdapter.kt

@@ -18,6 +18,7 @@
 
 package xyz.quaver.pupil.adapters
 
+import android.annotation.SuppressLint
 import android.content.Context
 import android.view.LayoutInflater
 import android.view.MotionEvent
@@ -60,6 +61,7 @@ class MirrorAdapter(context: Context) : RecyclerView.Adapter<MirrorAdapter.ViewH
     var onStartDrag : ((ViewHolder) -> Unit)? = null
     var onItemMoved : ((List<String>) -> (Unit))? = null
 
+    @SuppressLint("ClickableViewAccessibility")
     override fun onBindViewHolder(holder: ViewHolder, position: Int) {
         with(holder.view) {
             mirror_name.text = mirrors[list.elementAt(position)]

app/src/main/java/xyz/quaver/pupil/adapters/ReaderAdapter.kt

@@ -18,64 +18,38 @@
 
 package xyz.quaver.pupil.adapters
 
-import android.content.Context
-import android.graphics.BitmapFactory
+import android.app.Activity
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import androidx.constraintlayout.widget.ConstraintLayout
+import androidx.preference.PreferenceManager
 import androidx.recyclerview.widget.RecyclerView
-import com.bumptech.glide.Glide
-import com.bumptech.glide.ListPreloader
-import com.bumptech.glide.RequestBuilder
-import com.bumptech.glide.integration.recyclerview.RecyclerViewPreloader
+import com.bumptech.glide.RequestManager
 import com.bumptech.glide.load.engine.DiskCacheStrategy
-import com.crashlytics.android.Crashlytics
-import io.fabric.sdk.android.Fabric
+import com.bumptech.glide.load.model.GlideUrl
+import com.bumptech.glide.load.model.LazyHeaders
 import kotlinx.android.synthetic.main.item_reader.view.*
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
+import xyz.quaver.Code
 import xyz.quaver.hitomi.Reader
-import xyz.quaver.pupil.BuildConfig
+import xyz.quaver.hitomi.getReferer
+import xyz.quaver.hitomi.imageUrlFromImage
+import xyz.quaver.hiyobi.cookie
+import xyz.quaver.hiyobi.createImgList
+import xyz.quaver.hiyobi.user_agent
 import xyz.quaver.pupil.R
 import xyz.quaver.pupil.util.download.Cache
 import xyz.quaver.pupil.util.download.DownloadWorker
-import java.io.File
 import java.util.*
 import kotlin.concurrent.schedule
 import kotlin.math.roundToInt
 
-class ReaderAdapter(private val context: Context,
-                    private val galleryID: Int) : RecyclerView.Adapter<ReaderAdapter.ViewHolder>() {
-
-    val glide = Glide.with(context)
-
-    //region Glide.RecyclerView
-    val sizeProvider = ListPreloader.PreloadSizeProvider<File> { _, _, position ->
-        Cache(context).getReaderOrNull(galleryID)?.galleryInfo?.files?.getOrNull(position)?.let {
-            arrayOf(it.width, it.height).toIntArray()
-        }
-    }
-    val modelProvider = object: ListPreloader.PreloadModelProvider<File> {
-        override fun getPreloadItems(position: Int): MutableList<File> {
-            return listOf(Cache(context).getImages(galleryID)?.getOrNull(position)).filterNotNullTo(mutableListOf())
-        }
-
-        override fun getPreloadRequestBuilder(item: File): RequestBuilder<*>? {
-            return glide
-                .load(item)
-                .diskCacheStrategy(DiskCacheStrategy.NONE)
-                .skipMemoryCache(true)
-                .error(R.drawable.image_broken_variant)
-                .apply {
-                    if (BuildConfig.CENSOR)
-                        override(5, 8)
-                }
-        }
-    }
-    val preloader = RecyclerViewPreloader<File>(glide, modelProvider, sizeProvider, 10)
-    //endregion
+class ReaderAdapter(private val glide: RequestManager,
+                    private val galleryID: Int,
+                    private val activity: Activity) : RecyclerView.Adapter<ReaderAdapter.ViewHolder>() {
 
     var reader: Reader? = null
     val timer = Timer()
@@ -86,6 +60,8 @@ class ReaderAdapter(private val context: Context,
 
     class ViewHolder(val view: View) : RecyclerView.ViewHolder(view)
 
+    var downloadWorker: DownloadWorker? = null
+
     override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
         return LayoutInflater.from(parent.context).inflate(
             R.layout.item_reader, parent, false
@@ -97,12 +73,18 @@ class ReaderAdapter(private val context: Context,
     override fun onBindViewHolder(holder: ViewHolder, position: Int) {
         holder.view as ConstraintLayout
 
+        if (downloadWorker == null)
+            downloadWorker = DownloadWorker.getInstance(holder.view.context)
+
         if (isFullScreen) {
             holder.view.layoutParams.height = RecyclerView.LayoutParams.MATCH_PARENT
             holder.view.container.layoutParams.height = ConstraintLayout.LayoutParams.MATCH_PARENT
         } else {
             holder.view.layoutParams.height = RecyclerView.LayoutParams.WRAP_CONTENT
             holder.view.container.layoutParams.height = 0
+
+            (holder.view.container.layoutParams as ConstraintLayout.LayoutParams)
+                .dimensionRatio = "W,${reader!!.galleryInfo.files[position].width}:${reader!!.galleryInfo.files[position].height}"
         }
 
         holder.view.image.setOnPhotoTapListener { _, _, _ ->
@@ -113,56 +95,59 @@ class ReaderAdapter(private val context: Context,
             onItemClickListener?.invoke(position)
         }
 
-        if (!isFullScreen)
-            (holder.view.container.layoutParams as ConstraintLayout.LayoutParams)
-                .dimensionRatio = "${reader!!.galleryInfo.files[position].width}:${reader!!.galleryInfo.files[position].height}"
-
         holder.view.reader_index.text = (position+1).toString()
 
-        val images = Cache(context).getImage(galleryID, position)
-        val progress = DownloadWorker.getInstance(context).progress[galleryID]?.get(position)
+        val preferences = PreferenceManager.getDefaultSharedPreferences(holder.view.context)
+        if (preferences.getBoolean("cache_disable", false)) {
+            val lowQuality = preferences.getBoolean("low_quality", false)
 
-        if (progress?.isInfinite() == true && images != null) {
-            holder.view.reader_item_progressbar.visibility = View.INVISIBLE
-            holder.view.container.apply {
-                val options = BitmapFactory.Options().apply {
-                    inJustDecodeBounds = true
-                }
-
-                BitmapFactory.decodeFile(images.canonicalPath, options)
-
-                maxWidth = options.outWidth
-                maxHeight = options.outHeight
+            val url = when (reader!!.code) {
+                Code.HITOMI ->
+                    GlideUrl(
+                        imageUrlFromImage(
+                            galleryID,
+                            reader!!.galleryInfo.files[position],
+                            !lowQuality
+                        )
+                    , LazyHeaders.Builder().addHeader("Referer", getReferer(galleryID)).build())
+                Code.HIYOBI ->
+                    GlideUrl(createImgList(galleryID, reader!!, lowQuality)[position].path, LazyHeaders.Builder()
+                        .addHeader("User-Agent", user_agent)
+                        .addHeader("Cookie", cookie)
+                        .build())
+                else -> null
             }
-
-            glide
-                .load(images)
-                .diskCacheStrategy(DiskCacheStrategy.NONE)
-                .skipMemoryCache(true)
-                .dontTransform()
-                .error(R.drawable.image_broken_variant)
-                .apply {
-                    if (BuildConfig.CENSOR)
-                        override(5, 8)
-                }
-                .into(holder.view.image)
-        } else {
-            holder.view.reader_item_progressbar.visibility = View.VISIBLE
-            holder.view.container.apply {
-                maxWidth = Integer.MAX_VALUE
-                maxHeight = Integer.MAX_VALUE
-            }
-
-            if (progress?.isNaN() == true) {
-                if (Fabric.isInitialized())
-                    Crashlytics.logException(DownloadWorker.getInstance(context).exception[galleryID]?.get(position))
-
+            holder.view.image.post {
                 glide
-                    .load(R.drawable.image_broken_variant)
+                    .load(url!!)
+                    .diskCacheStrategy(DiskCacheStrategy.NONE)
+                    .skipMemoryCache(false)
+                    .fitCenter()
+                    .error(R.drawable.image_broken_variant)
                     .into(holder.view.image)
+            }
+        } else {
+            val image = Cache(holder.view.context).getImage(galleryID, position)
+            val progress = downloadWorker!!.progress[galleryID]?.get(position)
+
+            if (progress?.isInfinite() == true && image != null) {
+                holder.view.reader_item_progressbar.visibility = View.INVISIBLE
+
+                holder.view.image.post {
+                    glide
+                        .load(image)
+                        .diskCacheStrategy(DiskCacheStrategy.NONE)
+                        .skipMemoryCache(true)
+                        .fitCenter()
+                        .error(R.drawable.image_broken_variant)
+                        .into(holder.view.image)
+                }
 
-                return
             } else {
+                holder.view.reader_item_progressbar.visibility = View.VISIBLE
+
+                glide.clear(holder.view.image)
+
                 holder.view.reader_item_progressbar.progress =
                     if (progress?.isInfinite() == true)
                         100
@@ -170,11 +155,11 @@ class ReaderAdapter(private val context: Context,
                         progress?.roundToInt() ?: 0
 
                 holder.view.image.setImageDrawable(null)
-            }
 
-            timer.schedule(1000) {
-                CoroutineScope(Dispatchers.Main).launch {
-                    notifyItemChanged(position)
+                timer.schedule(1000) {
+                    CoroutineScope(Dispatchers.Main).launch {
+                        notifyItemChanged(position)
+                    }
                 }
             }
         }

app/src/main/java/xyz/quaver/pupil/adapters/ThumbnailAdapter.kt

@@ -22,9 +22,10 @@ import android.view.ViewGroup
 import android.widget.ImageView
 import androidx.recyclerview.widget.RecyclerView
 import com.bumptech.glide.RequestManager
+import com.bumptech.glide.load.engine.DiskCacheStrategy
 import xyz.quaver.pupil.BuildConfig
 
-class ThumbnailAdapter(private val glide: RequestManager, private val thumbnails: List<String>) : RecyclerView.Adapter<ThumbnailAdapter.ViewHolder>() {
+class ThumbnailAdapter(private val glide: RequestManager, var thumbnails: List<String>) : RecyclerView.Adapter<ThumbnailAdapter.ViewHolder>() {
 
     class ViewHolder(val view: ImageView) : RecyclerView.ViewHolder(view)
 
@@ -35,6 +36,7 @@ class ThumbnailAdapter(private val glide: RequestManager, private val thumbnails
     override fun onBindViewHolder(holder: ViewHolder, position: Int) {
         glide
             .load(thumbnails[position])
+            .diskCacheStrategy(DiskCacheStrategy.NONE)
             .apply {
                 if (BuildConfig.CENSOR)
                     override(5, 8)

app/src/main/java/xyz/quaver/pupil/adapters/ThumbnailPageAdapter.kt

@@ -0,0 +1,50 @@
+/*
+ *     Pupil, Hitomi.la viewer for Android
+ *     Copyright (C) 2020  tom5079
+ *
+ *     This program is free software: you can redistribute it and/or modify
+ *     it under the terms of the GNU General Public License as published by
+ *     the Free Software Foundation, either version 3 of the License, or
+ *     (at your option) any later version.
+ *
+ *     This program is distributed in the hope that it will be useful,
+ *     but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *     GNU General Public License for more details.
+ *
+ *     You should have received a copy of the GNU General Public License
+ *     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package xyz.quaver.pupil.adapters
+
+import android.view.ViewGroup
+import androidx.recyclerview.widget.GridLayoutManager
+import androidx.recyclerview.widget.RecyclerView
+import com.bumptech.glide.RequestManager
+import kotlin.math.min
+
+class ThumbnailPageAdapter(private val glide: RequestManager, private val thumbnails: List<String>) : RecyclerView.Adapter<ThumbnailPageAdapter.ViewHolder>() {
+
+    class ViewHolder(val view: RecyclerView) : RecyclerView.ViewHolder(view)
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
+        return ViewHolder(RecyclerView(parent.context).apply {
+            layoutManager = GridLayoutManager(parent.context, 3)
+            adapter = ThumbnailAdapter(glide, listOf())
+            layoutParams = ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT)
+        })
+    }
+
+    override fun onBindViewHolder(holder: ViewHolder, position: Int) {
+        (holder.view.adapter as ThumbnailAdapter).apply {
+            thumbnails = this@ThumbnailPageAdapter.thumbnails.slice(9*position until min(9*position+9, this@ThumbnailPageAdapter.thumbnails.size))
+            notifyDataSetChanged()
+
+            holder.view.layoutManager?.scrollToPosition(itemCount-1)
+        }
+    }
+
+    override fun getItemCount() = if (thumbnails.isEmpty()) 0 else thumbnails.size/9 + if (thumbnails.size%9 != 0) 1 else 0
+
+}

app/src/main/java/xyz/quaver/pupil/ui/LockActivity.kt

@@ -21,23 +21,157 @@ package xyz.quaver.pupil.ui
 import android.app.Activity
 import android.app.AlertDialog
 import android.os.Bundle
+import android.view.animation.Animation
+import android.view.animation.AnimationUtils
 import androidx.appcompat.app.AppCompatActivity
+import androidx.biometric.BiometricManager
+import androidx.biometric.BiometricPrompt
+import androidx.core.content.ContextCompat
+import androidx.preference.PreferenceManager
 import com.andrognito.patternlockview.PatternLockView
 import com.google.android.material.snackbar.Snackbar
 import kotlinx.android.synthetic.main.activity_lock.*
 import kotlinx.android.synthetic.main.fragment_pattern_lock.*
+import kotlinx.android.synthetic.main.fragment_pin_lock.*
 import xyz.quaver.pupil.R
+import xyz.quaver.pupil.ui.fragment.PINLockFragment
 import xyz.quaver.pupil.ui.fragment.PatternLockFragment
 import xyz.quaver.pupil.util.Lock
 import xyz.quaver.pupil.util.LockManager
 
 class LockActivity : AppCompatActivity() {
 
+    private lateinit var lockManager: LockManager
+    private var mode: String? = null
+
+    private val patternLockFragment = PatternLockFragment().apply {
+        var lastPass = ""
+        onPatternDrawn = {
+            when(mode) {
+                null -> {
+                    val result = lockManager.check(it)
+
+                    if (result == true) {
+                        setResult(Activity.RESULT_OK)
+                        finish()
+                    } else
+                        lock_pattern_view.setViewMode(PatternLockView.PatternViewMode.WRONG)
+                }
+                "add_lock" -> {
+                    if (lastPass.isEmpty()) {
+                        lastPass = it
+
+                        Snackbar.make(view!!, R.string.settings_lock_confirm, Snackbar.LENGTH_LONG).show()
+                    } else {
+                        if (lastPass == it) {
+                            LockManager(context!!).add(Lock.generate(Lock.Type.PATTERN, it))
+                            finish()
+                        } else {
+                            lock_pattern_view.setViewMode(PatternLockView.PatternViewMode.WRONG)
+                            lastPass = ""
+
+                            Snackbar.make(view!!, R.string.settings_lock_wrong_confirm, Snackbar.LENGTH_LONG).show()
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    private val pinLockFragment = PINLockFragment().apply {
+        var lastPass = ""
+        onPINEntered = {
+            when(mode) {
+                null -> {
+                    val result = lockManager.check(it)
+
+                    if (result == true) {
+                        setResult(Activity.RESULT_OK)
+                        finish()
+                    } else {
+                        indicator_dots.startAnimation(AnimationUtils.loadAnimation(context, R.anim.shake).apply {
+                            setAnimationListener(object: Animation.AnimationListener {
+                                override fun onAnimationEnd(animation: Animation?) {
+                                    pin_lock_view.resetPinLockView()
+                                    pin_lock_view.isEnabled = true
+                                }
+
+                                override fun onAnimationStart(animation: Animation?) {
+                                    pin_lock_view.isEnabled = false
+                                }
+
+                                override fun onAnimationRepeat(animation: Animation?) {
+                                    // Do Nothing
+                                }
+                            })
+                        })
+                    }
+                }
+                "add_lock" -> {
+                    if (lastPass.isEmpty()) {
+                        lastPass = it
+
+                        pin_lock_view.resetPinLockView()
+                        Snackbar.make(view!!, R.string.settings_lock_confirm, Snackbar.LENGTH_LONG).show()
+                    } else {
+                        if (lastPass == it) {
+                            LockManager(context!!).add(Lock.generate(Lock.Type.PIN, it))
+                            finish()
+                        } else {
+                            indicator_dots.startAnimation(AnimationUtils.loadAnimation(context, R.anim.shake).apply {
+                                setAnimationListener(object: Animation.AnimationListener {
+                                    override fun onAnimationEnd(animation: Animation?) {
+                                        pin_lock_view.resetPinLockView()
+                                        pin_lock_view.isEnabled = true
+                                    }
+
+                                    override fun onAnimationStart(animation: Animation?) {
+                                        pin_lock_view.isEnabled = false
+                                    }
+
+                                    override fun onAnimationRepeat(animation: Animation?) {
+                                        // Do Nothing
+                                    }
+                                })
+                            })
+                            lastPass = ""
+
+                            Snackbar.make(view!!, R.string.settings_lock_wrong_confirm, Snackbar.LENGTH_LONG).show()
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    private fun showBiometricPrompt() {
+        val promptInfo = BiometricPrompt.PromptInfo.Builder()
+            .setTitle(getText(R.string.settings_lock_fingerprint_prompt))
+            .setSubtitle(getText(R.string.settings_lock_fingerprint_prompt_subtitle))
+            .setNegativeButtonText(getText(android.R.string.cancel))
+            .setConfirmationRequired(false)
+            .build()
+
+        val biometricPrompt = BiometricPrompt(this, ContextCompat.getMainExecutor(this),
+            object : BiometricPrompt.AuthenticationCallback() {
+                override fun onAuthenticationSucceeded(
+                    result: BiometricPrompt.AuthenticationResult) {
+                    super.onAuthenticationSucceeded(result)
+                    setResult(RESULT_OK)
+                    finish()
+                    return
+                }
+            })
+
+        // Displays the "log in" prompt.
+        biometricPrompt.authenticate(promptInfo)
+    }
+
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_lock)
 
-        val lockManager = try {
+        lockManager = try {
             LockManager(this)
         } catch (e: Exception) {
             AlertDialog.Builder(this).apply {
@@ -50,12 +184,7 @@ class LockActivity : AppCompatActivity() {
             return
         }
 
-        val mode = intent.getStringExtra("mode")
-
-        lock_pattern.isEnabled = false
-        lock_pin.isEnabled = false
-        lock_fingerprint.isEnabled = false
-        lock_password.isEnabled = false
+        mode = intent.getStringExtra("mode")
 
         when(mode) {
             null -> {
@@ -64,52 +193,75 @@ class LockActivity : AppCompatActivity() {
                     finish()
                     return
                 }
+
+                if (
+                    PreferenceManager.getDefaultSharedPreferences(this).getBoolean("lock_fingerprint", false)
+                    && BiometricManager.from(this).canAuthenticate() == BiometricManager.BIOMETRIC_SUCCESS
+                ) {
+                    lock_fingerprint.apply {
+                        isEnabled = true
+                        setOnClickListener {
+                            showBiometricPrompt()
+                        }
+                    }
+                    showBiometricPrompt()
+                }
+
+                lock_pattern.apply {
+                    isEnabled = lockManager.contains(Lock.Type.PATTERN)
+                    setOnClickListener {
+                        supportFragmentManager.beginTransaction().replace(
+                            R.id.lock_content, patternLockFragment
+                        ).commit()
+                    }
+                }
+                lock_pin.apply {
+                    isEnabled = lockManager.contains(Lock.Type.PIN)
+                    setOnClickListener {
+                        supportFragmentManager.beginTransaction().replace(
+                            R.id.lock_content, pinLockFragment
+                        ).commit()
+                    }
+                }
+                lock_password.isEnabled = false
+
+                when (lockManager.locks!!.first().type) {
+                    Lock.Type.PIN -> {
+
+                        supportFragmentManager.beginTransaction().add(
+                            R.id.lock_content, pinLockFragment
+                        ).commit()
+                    }
+                    Lock.Type.PATTERN -> {
+                        supportFragmentManager.beginTransaction().add(
+                            R.id.lock_content, patternLockFragment
+                        ).commit()
+                    }
+                    else -> return
+                }
             }
             "add_lock" -> {
+                lock_pattern.isEnabled = false
+                lock_pin.isEnabled = false
+                lock_fingerprint.isEnabled = false
+                lock_password.isEnabled = false
+
                 when(intent.getStringExtra("type")!!) {
                     "pattern" -> {
-
+                        lock_pattern.isEnabled = true
+                        supportFragmentManager.beginTransaction().add(
+                            R.id.lock_content, patternLockFragment
+                        ).commit()
+                    }
+                    "pin" -> {
+                        lock_pin.isEnabled = true
+                        supportFragmentManager.beginTransaction().add(
+                            R.id.lock_content, pinLockFragment
+                        ).commit()
                     }
                 }
             }
         }
-
-        supportFragmentManager.beginTransaction().add(
-            R.id.lock_content,
-            PatternLockFragment().apply {
-                var lastPass = ""
-                onPatternDrawn = {
-                    when(mode) {
-                        null -> {
-                            val result = lockManager.check(it)
-
-                            if (result == true) {
-                                setResult(Activity.RESULT_OK)
-                                finish()
-                            } else
-                                lock_pattern_view.setViewMode(PatternLockView.PatternViewMode.WRONG)
-                        }
-                        "add_lock" -> {
-                            if (lastPass.isEmpty()) {
-                                lastPass = it
-
-                                Snackbar.make(view!!, R.string.settings_lock_confirm, Snackbar.LENGTH_LONG).show()
-                            } else {
-                                if (lastPass == it) {
-                                    LockManager(context!!).add(Lock.generate(Lock.Type.PATTERN, it))
-                                    finish()
-                                } else {
-                                    lock_pattern_view.setViewMode(PatternLockView.PatternViewMode.WRONG)
-                                    lastPass = ""
-
-                                    Snackbar.make(view!!, R.string.settings_lock_wrong_confirm, Snackbar.LENGTH_LONG).show()
-                                }
-                            }
-                        }
-                    }
-                }
-            }
-        ).commit()
     }
 
 }

app/src/main/java/xyz/quaver/pupil/ui/MainActivity.kt

@@ -18,6 +18,7 @@
 
 package xyz.quaver.pupil.ui
 
+import android.annotation.SuppressLint
 import android.app.Activity
 import android.content.Intent
 import android.graphics.drawable.Animatable
@@ -25,15 +26,13 @@ import android.net.Uri
 import android.os.Bundle
 import android.text.*
 import android.text.style.AlignmentSpan
+import android.util.TypedValue
 import android.view.KeyEvent
 import android.view.MotionEvent
 import android.view.View
 import android.view.WindowManager
 import android.view.inputmethod.EditorInfo
-import android.widget.EditText
-import android.widget.ImageView
-import android.widget.LinearLayout
-import android.widget.TextView
+import android.widget.*
 import androidx.appcompat.app.AlertDialog
 import androidx.appcompat.app.AppCompatActivity
 import androidx.cardview.widget.CardView
@@ -43,15 +42,16 @@ import androidx.core.view.GravityCompat
 import androidx.preference.PreferenceManager
 import androidx.vectordrawable.graphics.drawable.AnimatedVectorDrawableCompat
 import com.arlib.floatingsearchview.FloatingSearchView
+import com.arlib.floatingsearchview.FloatingSearchViewDayNight
 import com.arlib.floatingsearchview.suggestions.model.SearchSuggestion
 import com.arlib.floatingsearchview.util.view.SearchInputView
-import com.crashlytics.android.Crashlytics
+import com.bumptech.glide.Glide
 import com.google.android.material.appbar.AppBarLayout
-import io.fabric.sdk.android.Fabric
+import com.google.firebase.crashlytics.FirebaseCrashlytics
 import kotlinx.android.synthetic.main.activity_main.*
 import kotlinx.android.synthetic.main.activity_main_content.*
 import kotlinx.coroutines.*
-import kotlinx.serialization.list
+import kotlinx.serialization.builtins.list
 import xyz.quaver.hitomi.GalleryBlock
 import xyz.quaver.hitomi.doSearch
 import xyz.quaver.hitomi.getGalleryIDsFromNozomi
@@ -98,6 +98,7 @@ class MainActivity : AppCompatActivity() {
                 setText(query, TextView.BufferType.EDITABLE)
         }
     }
+    private var queryStack = mutableListOf<String>()
 
     private var mode = Mode.SEARCH
     private var sortMode = SortMode.NEWEST
@@ -159,11 +160,12 @@ class MainActivity : AppCompatActivity() {
         initView()
     }
 
+    @OptIn(ExperimentalStdlibApi::class)
     override fun onBackPressed() {
         when {
             main_drawer_layout.isDrawerOpen(GravityCompat.START) -> main_drawer_layout.closeDrawer(GravityCompat.START)
-            query.isNotEmpty() -> runOnUiThread {
-                query = ""
+            queryStack.removeLastOrNull() != null && queryStack.isNotEmpty() -> runOnUiThread {
+                query = queryStack.last()
 
                 cancelFetch()
                 clearGalleries()
@@ -195,7 +197,7 @@ class MainActivity : AppCompatActivity() {
 
     override fun onKeyDown(keyCode: Int, event: KeyEvent?): Boolean {
         val preference = PreferenceManager.getDefaultSharedPreferences(this)
-        val perPage = preference.getString("per_page", "25")!!.toInt()
+        val perPage = preference.getString("per_page", "25")!!.toIntOrNull() ?: 25
         val maxPage = ceil(totalItems / perPage.toDouble()).roundToInt()
 
         return when(keyCode) {
@@ -278,6 +280,7 @@ class MainActivity : AppCompatActivity() {
                         clearGalleries()
                         currentPage = 0
                         query = ""
+                        queryStack.clear()
                         mode = Mode.SEARCH
                         fetchGalleries(query, sortMode)
                         loadBlocks()
@@ -287,6 +290,7 @@ class MainActivity : AppCompatActivity() {
                         clearGalleries()
                         currentPage = 0
                         query = ""
+                        queryStack.clear()
                         mode = Mode.HISTORY
                         fetchGalleries(query, sortMode)
                         loadBlocks()
@@ -296,6 +300,7 @@ class MainActivity : AppCompatActivity() {
                         clearGalleries()
                         currentPage = 0
                         query = ""
+                        queryStack.clear()
                         mode = Mode.DOWNLOAD
                         fetchGalleries(query, sortMode)
                         loadBlocks()
@@ -305,6 +310,7 @@ class MainActivity : AppCompatActivity() {
                         clearGalleries()
                         currentPage = 0
                         query = ""
+                        queryStack.clear()
                         mode = Mode.FAVORITE
                         fetchGalleries(query, sortMode)
                         loadBlocks()
@@ -330,11 +336,18 @@ class MainActivity : AppCompatActivity() {
             true
         }
 
+        with(main_fab_cancel) {
+            setImageResource(R.drawable.cancel)
+            setOnClickListener {
+                DownloadWorker.getInstance(context).stop()
+            }
+        }
+
         with(main_fab_jump) {
             setImageResource(R.drawable.ic_jump)
             setOnClickListener {
                 val preference = PreferenceManager.getDefaultSharedPreferences(context)
-                val perPage = preference.getString("per_page", "25")!!.toInt()
+                val perPage = preference.getString("per_page", "25")!!.toIntOrNull() ?: 25
                 val editText = EditText(context)
 
                 AlertDialog.Builder(context).apply {
@@ -359,17 +372,53 @@ class MainActivity : AppCompatActivity() {
             }
         }
 
+        with(main_fab_random) {
+            setImageResource(R.drawable.shuffle_variant)
+            setOnClickListener {
+                runBlocking {
+                    withTimeoutOrNull(100) {
+                        galleryIDs?.await()
+                    }
+                }.let {
+                    if (it?.isEmpty() == false) {
+                        val galleryID = it.random()
+
+                        GalleryDialog(
+                            this@MainActivity,
+                            Glide.with(this@MainActivity),
+                            galleryID
+                        ).apply {
+                            onChipClickedHandler.add {
+                                runOnUiThread {
+                                    query = it.toQuery()
+                                    currentPage = 0
+
+                                    cancelFetch()
+                                    clearGalleries()
+                                    fetchGalleries(query, sortMode)
+                                    loadBlocks()
+                                }
+                                dismiss()
+                            }
+                        }.show()
+                    }
+                }
+            }
+        }
+
         with(main_fab_id) {
             setImageResource(R.drawable.numeric)
             setOnClickListener {
-                val editText = EditText(context)
+                val editText = EditText(context).apply {
+                    inputType = InputType.TYPE_CLASS_NUMBER
+                }
 
                 AlertDialog.Builder(context).apply {
                     setView(editText)
                     setTitle(R.string.main_open_gallery_by_id)
 
                     setPositiveButton(android.R.string.ok) { _, _ ->
-                            val galleryID = editText.text.toString().toInt()
+                            val galleryID = editText.text.toString().toIntOrNull() ?: return@setPositiveButton
                             val intent = Intent(this@MainActivity, ReaderActivity::class.java).apply {
                                 putExtra("galleryID", galleryID)
                             }
@@ -388,9 +437,10 @@ class MainActivity : AppCompatActivity() {
         loadBlocks()
     }
 
+    @SuppressLint("ClickableViewAccessibility")
     private fun setupRecyclerView() {
         with(main_recyclerview) {
-            adapter = GalleryBlockAdapter(this@MainActivity, galleries).apply {
+            adapter = GalleryBlockAdapter(Glide.with(this@MainActivity), galleries).apply {
                 onChipClickedHandler.add {
                     runOnUiThread {
                         query = it.toQuery()
@@ -404,17 +454,18 @@ class MainActivity : AppCompatActivity() {
                 }
                 onDownloadClickedHandler = { position ->
                     val galleryID = galleries[position].id
-
-                    if (!completeFlag.get(galleryID, false)) {
-                        val worker = DownloadWorker.getInstance(context)
-
-                        if (worker.progress.indexOfKey(galleryID) >= 0)     //download in progress
+                    val worker = DownloadWorker.getInstance(context)
+                    if (PreferenceManager.getDefaultSharedPreferences(context).getBoolean("cache_disable", false))
+                        Toast.makeText(context, R.string.settings_download_when_cache_disable_warning, Toast.LENGTH_SHORT).show()
+                    else {
+                        if (worker.progress.indexOfKey(galleryID) >= 0 && Cache(context).isDownloading(galleryID)) {     //download in progress
+                            Cache(context).setDownloading(galleryID, false)
                             worker.cancel(galleryID)
+                        }
                         else {
                             Cache(context).setDownloading(galleryID, true)
 
-                            if (!worker.queue.contains(galleryID))
-                                worker.queue.add(galleryID)
+                            worker.queue.add(galleryID)
                         }
                     }
 
@@ -467,6 +518,7 @@ class MainActivity : AppCompatActivity() {
 
                     GalleryDialog(
                         this@MainActivity,
+                        Glide.with(this@MainActivity),
                         galleryID
                     ).apply {
                         onChipClickedHandler.add {
@@ -712,7 +764,7 @@ class MainActivity : AppCompatActivity() {
         })
         searchInputView.imeOptions = EditorInfo.IME_FLAG_NO_EXTRACT_UI
 
-        with(main_searchview as FloatingSearchView) {
+        with(main_searchview as FloatingSearchViewDayNight) {
             val favoritesFile = File(ContextCompat.getDataDir(context), "favorites_tags.json")
             val serializer = Tag.serializer().list
 
@@ -721,9 +773,28 @@ class MainActivity : AppCompatActivity() {
                 favoritesFile.writeText(json.stringify(serializer, Tags(listOf())))
             }
 
+            setOnLeftMenuClickListener(object: FloatingSearchView.OnLeftMenuClickListener {
+                override fun onMenuOpened() {
+                    (this@MainActivity.main_recyclerview.adapter as GalleryBlockAdapter).closeAllItems()
+                }
+
+                override fun onMenuClosed() {
+                    //Do Nothing
+                }
+            })
+
             setOnMenuItemClickListener {
                 when(it.itemId) {
                     R.id.main_menu_settings -> startActivityForResult(Intent(this@MainActivity, SettingsActivity::class.java), REQUEST_SETTINGS)
+                    R.id.main_menu_thin -> {
+                        main_recyclerview.apply {
+                            (adapter as GalleryBlockAdapter).apply {
+                                isThin = !isThin
+                            }
+
+                            adapter = adapter       // Force to redraw
+                        }
+                    }
                     R.id.main_menu_sort_newest -> {
                         sortMode = SortMode.NEWEST
                         it.isChecked = true
@@ -792,20 +863,23 @@ class MainActivity : AppCompatActivity() {
 
                 val tag = "${item.n}:${item.s.replace(Regex("\\s"), "_")}"
 
+                val color = TypedValue()
+                theme.resolveAttribute(R.attr.colorControlNormal, color, true)
+
                 leftIcon.setImageDrawable(
                     ResourcesCompat.getDrawable(
                         resources,
                         when(item.n) {
-                            "female" -> R.drawable.ic_gender_female
-                            "male" -> R.drawable.ic_gender_male
-                            "language" -> R.drawable.ic_translate
-                            "group" -> R.drawable.ic_account_group
-                            "character" -> R.drawable.ic_account_star
-                            "series" -> R.drawable.ic_book_open
-                            "artist" -> R.drawable.ic_brush
-                            else -> R.drawable.ic_tag
+                            "female" -> R.drawable.gender_female
+                            "male" -> R.drawable.gender_male
+                            "language" -> R.drawable.translate
+                            "group" -> R.drawable.account_group
+                            "character" -> R.drawable.account_star
+                            "series" -> R.drawable.book_open
+                            "artist" -> R.drawable.brush
+                            else -> R.drawable.tag
                         },
-                        null)
+                        context.theme)
                 )
 
                 with(suggestionView.findViewById<ImageView>(R.id.right_icon)) {
@@ -922,6 +996,11 @@ class MainActivity : AppCompatActivity() {
         val preference = PreferenceManager.getDefaultSharedPreferences(this)
         val defaultQuery = preference.getString("default_query", "")!!
 
+        if (query != queryStack.lastOrNull()) {
+            queryStack.remove(query)
+            queryStack.add(query)
+        }
+
         galleryIDs = null
 
         if (galleryIDs?.isActive == true)
@@ -1009,8 +1088,8 @@ class MainActivity : AppCompatActivity() {
                 }
             } catch (e: Exception) {
 
-                if (Fabric.isInitialized() && e.message != "No result")
-                    Crashlytics.logException(e)
+                if (e.message != "No result")
+                    FirebaseCrashlytics.getInstance().recordException(e)
 
                 withContext(Dispatchers.Main) {
                     main_noresult.visibility = View.VISIBLE

app/src/main/java/xyz/quaver/pupil/ui/ReaderActivity.kt

@@ -23,6 +23,7 @@ import android.graphics.drawable.Animatable
 import android.graphics.drawable.Drawable
 import android.os.Bundle
 import android.view.*
+import android.widget.Toast
 import androidx.appcompat.app.AlertDialog
 import androidx.appcompat.app.AppCompatActivity
 import androidx.core.content.ContextCompat
@@ -32,12 +33,15 @@ import androidx.recyclerview.widget.PagerSnapHelper
 import androidx.recyclerview.widget.RecyclerView
 import androidx.vectordrawable.graphics.drawable.Animatable2Compat
 import androidx.vectordrawable.graphics.drawable.AnimatedVectorDrawableCompat
-import com.crashlytics.android.Crashlytics
+import com.bumptech.glide.Glide
 import com.google.android.material.snackbar.Snackbar
-import io.fabric.sdk.android.Fabric
+import com.google.firebase.crashlytics.FirebaseCrashlytics
 import kotlinx.android.synthetic.main.activity_reader.*
 import kotlinx.android.synthetic.main.activity_reader.view.*
 import kotlinx.android.synthetic.main.dialog_numberpicker.view.*
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
 import xyz.quaver.Code
 import xyz.quaver.pupil.Pupil
 import xyz.quaver.pupil.R
@@ -90,8 +94,7 @@ class ReaderActivity : AppCompatActivity() {
 
         handleIntent(intent)
 
-        if (Fabric.isInitialized())
-            Crashlytics.setInt("GalleryID", galleryID)
+        FirebaseCrashlytics.getInstance().setCustomKey("GalleryID", galleryID)
 
         if (galleryID == 0) {
             onBackPressed()
@@ -99,7 +102,36 @@ class ReaderActivity : AppCompatActivity() {
         }
 
         initView()
-        initDownloader()
+        if (PreferenceManager.getDefaultSharedPreferences(this).getBoolean("cache_disable", false)) {
+            reader_download_progressbar.visibility = View.GONE
+            CoroutineScope(Dispatchers.IO).launch {
+                val reader = Cache(this@ReaderActivity).getReader(galleryID)
+
+                launch(Dispatchers.Main) initDownloader@{
+                    if (reader == null) {
+                        Snackbar
+                            .make(reader_layout, R.string.reader_failed_to_find_gallery, Snackbar.LENGTH_INDEFINITE)
+                            .show()
+                        return@initDownloader
+                    }
+
+                    (reader_recyclerview.adapter as ReaderAdapter).apply {
+                        this.reader = reader
+                        notifyDataSetChanged()
+                    }
+                    title = reader.galleryInfo.title ?: ""
+                    menu?.findItem(R.id.reader_menu_page_indicator)?.title = "$currentPage/${reader.galleryInfo.files.size}"
+
+                    menu?.findItem(R.id.reader_type)?.icon = ContextCompat.getDrawable(this@ReaderActivity,
+                        when (reader.code) {
+                            Code.HITOMI -> R.drawable.hitomi
+                            Code.HIYOBI -> R.drawable.ic_hiyobi
+                            else -> android.R.color.transparent
+                        })
+                }
+            }
+        } else
+            initDownloader()
     }
 
     override fun onNewIntent(intent: Intent) {
@@ -112,14 +144,12 @@ class ReaderActivity : AppCompatActivity() {
             val uri = intent.data
             val lastPathSegment = uri?.lastPathSegment
             if (uri != null && lastPathSegment != null) {
-                val nonNumber = Regex("[^-?0-9]+")
-
                 galleryID = when (uri.host) {
-                    "hitomi.la" -> lastPathSegment.replace(nonNumber, "").toInt()
-                    "히요비.asia" -> lastPathSegment.toInt()
-                    "xn--9w3b15m8vo.asia" -> lastPathSegment.toInt()
+                    "hitomi.la" ->
+                        Regex("([0-9]+).html").find(lastPathSegment)?.groupValues?.get(1)?.toIntOrNull() ?: 0
+                    "hiyobi.me" -> lastPathSegment.toInt()
                     "e-hentai.org" -> uri.pathSegments[1].toInt()
-                    else -> return
+                    else -> 0
                 }
             }
         } else {
@@ -157,10 +187,10 @@ class ReaderActivity : AppCompatActivity() {
     override fun onOptionsItemSelected(item: MenuItem?): Boolean {
         when(item?.itemId) {
             R.id.reader_menu_page_indicator -> {
-                val view = LayoutInflater.from(this).inflate(R.layout.dialog_numberpicker, findViewById(android.R.id.content), false)
+                val view = LayoutInflater.from(this).inflate(R.layout.dialog_numberpicker, reader_layout, false)
                 with(view.dialog_number_picker) {
                     minValue=1
-                    maxValue=reader_recyclerview?.adapter?.itemCount ?: 0
+                    maxValue=Cache(context).getReaderOrNull(galleryID)?.galleryInfo?.files?.size ?: 0
                     value=currentPage
                 }
                 val dialog = AlertDialog.Builder(this).apply {
@@ -234,6 +264,7 @@ class ReaderActivity : AppCompatActivity() {
 
     private fun initDownloader() {
         val worker = DownloadWorker.getInstance(this).apply {
+            cancel(galleryID)
             queue.add(galleryID)
         }
 
@@ -250,7 +281,7 @@ class ReaderActivity : AppCompatActivity() {
 
             runOnUiThread {
                 reader_download_progressbar.max = reader_recyclerview.adapter?.itemCount ?: 0
-                reader_download_progressbar.progress = worker.progress[galleryID]?.count { !it.isFinite() } ?: 0
+                reader_download_progressbar.progress = worker.progress[galleryID]?.count { it.isInfinite() } ?: 0
                 reader_progressbar.max = reader_recyclerview.adapter?.itemCount ?: 0
 
                 if (title == getString(R.string.reader_loading)) {
@@ -275,7 +306,7 @@ class ReaderActivity : AppCompatActivity() {
                     }
                 }
 
-                if (worker.progress[galleryID]?.all { !it.isFinite() } == true) {   //Download finished
+                if (worker.progress[galleryID]?.all { it.isInfinite() } == true) {   //Download finished
                     reader_download_progressbar.visibility = View.GONE
 
                     animateDownloadFAB(false)
@@ -286,7 +317,7 @@ class ReaderActivity : AppCompatActivity() {
 
     private fun initView() {
         with(reader_recyclerview) {
-            adapter = ReaderAdapter(this@ReaderActivity, galleryID).apply {
+            adapter = ReaderAdapter(Glide.with(this@ReaderActivity), galleryID, this@ReaderActivity).apply {
                 onItemClickListener = {
                     if (isScroll) {
                         isScroll = false
@@ -300,7 +331,6 @@ class ReaderActivity : AppCompatActivity() {
                 }
             }
 
-            addOnScrollListener((adapter as ReaderAdapter).preloader)
             addOnScrollListener(object: RecyclerView.OnScrollListener() {
                 override fun onScrolled(recyclerView: RecyclerView, dx: Int, dy: Int) {
                     super.onScrolled(recyclerView, dx, dy)
@@ -325,13 +355,27 @@ class ReaderActivity : AppCompatActivity() {
             animateDownloadFAB(Cache(context).isDownloading(galleryID)) //If download in progress, animate button
 
             setOnClickListener {
-                if (Cache(context).isDownloading(galleryID)) {
-                   Cache(context).setDownloading(galleryID, false)
+                if (PreferenceManager.getDefaultSharedPreferences(context).getBoolean("cache_disable", false))
+                    Toast.makeText(context, R.string.settings_download_when_cache_disable_warning, Toast.LENGTH_SHORT).show()
+                else {
+                    if (Cache(context).isDownloading(galleryID)) {
+                        Cache(context).setDownloading(galleryID, false)
 
-                    animateDownloadFAB(false)
-                } else {
-                    Cache(context).setDownloading(galleryID, true)
-                    animateDownloadFAB(true)
+                        animateDownloadFAB(false)
+                    } else {
+                        Cache(context).setDownloading(galleryID, true)
+                        animateDownloadFAB(true)
+                    }
+                }
+            }
+        }
+
+        with(reader_fab_retry) {
+            setImageResource(R.drawable.refresh)
+            setOnClickListener {
+                DownloadWorker.getInstance(context).let {
+                    it.cancel(galleryID)
+                    it.queue.add(galleryID)
                 }
             }
         }
@@ -361,6 +405,8 @@ class ReaderActivity : AppCompatActivity() {
 
             window.attributes = this
         }
+
+        reader_recyclerview.adapter = reader_recyclerview.adapter   // Force to redraw
     }
 
     private fun scrollMode(isScroll: Boolean) {
@@ -383,10 +429,10 @@ class ReaderActivity : AppCompatActivity() {
                 icon?.registerAnimationCallback(object : Animatable2Compat.AnimationCallback() {
                     override fun onAnimationEnd(drawable: Drawable?) {
                         val worker = DownloadWorker.getInstance(context)
-                        if (worker.progress[galleryID]?.all { !it.isFinite() } == true) // If download is finished, stop animating
+                        if (worker.progress[galleryID]?.all { it.isInfinite() } == true) // If download is finished, stop animating
                             post {
                                 setImageResource(R.drawable.ic_download)
-                                labelText = getString(R.string.reader_fab_download)
+                                labelText = getString(R.string.reader_fab_download_cancel)
                             }
                         else                                                            // Or continue animate
                             post {

app/src/main/java/xyz/quaver/pupil/ui/SettingsActivity.kt

@@ -30,12 +30,12 @@ import androidx.appcompat.app.AppCompatActivity
 import androidx.preference.PreferenceManager
 import com.google.android.material.snackbar.Snackbar
 import kotlinx.android.synthetic.main.settings_activity.*
-import kotlinx.serialization.list
-import kotlinx.serialization.serializer
+import kotlinx.serialization.builtins.list
+import kotlinx.serialization.builtins.serializer
 import net.rdrei.android.dirchooser.DirectoryChooserActivity
 import xyz.quaver.pupil.Pupil
 import xyz.quaver.pupil.R
-import xyz.quaver.pupil.ui.fragment.LockFragment
+import xyz.quaver.pupil.ui.fragment.LockSettingsFragment
 import xyz.quaver.pupil.ui.fragment.SettingsFragment
 import xyz.quaver.pupil.util.*
 import java.io.File
@@ -84,7 +84,7 @@ class SettingsActivity : AppCompatActivity() {
                 if (resultCode == Activity.RESULT_OK) {
                     supportFragmentManager
                         .beginTransaction()
-                        .replace(R.id.settings, LockFragment())
+                        .replace(R.id.settings, LockSettingsFragment())
                         .addToBackStack("Lock")
                         .commitAllowingStateLoss()
                 }
@@ -156,6 +156,43 @@ class SettingsActivity : AppCompatActivity() {
                             .apply()
                 }
             }
+            REQUEST_IMPORT_OLD_GALLERIES -> {
+                if (resultCode == Activity.RESULT_OK) {
+                    data?.data?.also { uri ->
+                        val takeFlags: Int =
+                            intent.flags and (Intent.FLAG_GRANT_READ_URI_PERMISSION or Intent.FLAG_GRANT_WRITE_URI_PERMISSION)
+
+                        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT)
+                            contentResolver.takePersistableUriPermission(uri, takeFlags)
+
+                        val file = uri.toFile(this)
+
+                        if (file?.canRead() != true)
+                            Snackbar.make(
+                                settings,
+                                resources.getText(R.string.import_old_galleries_folder_not_readable),
+                                Snackbar.LENGTH_LONG
+                            ).show()
+                        else
+                            importOldGalleries(this, file)
+                    }
+                }
+            }
+            REQUEST_IMPORT_OLD_GALLERIES_OLD -> {
+                if (resultCode == DirectoryChooserActivity.RESULT_CODE_DIR_SELECTED) {
+                    val directory = data?.getStringExtra(DirectoryChooserActivity.RESULT_SELECTED_DIR)!!
+
+                    if (!File(directory).canRead())
+                        Snackbar.make(
+                            settings,
+                            resources.getText(R.string.import_old_galleries_folder_not_readable),
+                            Snackbar.LENGTH_LONG
+                        ).show()
+                    else {
+                        importOldGalleries(this, File(directory))
+                    }
+                }
+            }
             else -> super.onActivityResult(requestCode, resultCode, data)
         }
     }

app/src/main/java/xyz/quaver/pupil/ui/dialog/DefaultQueryDialog.kt

@@ -45,6 +45,7 @@ class DefaultQueryDialog(context : Context) : AlertDialog(context) {
 
     private val excludeBL = "-male:yaoi"
     private val excludeGuro = listOf("-female:guro", "-male:guro")
+    private val excludeLoli = listOf("-female:loli", "-male:shota")
 
     var onPositiveButtonClickListener : ((Tags) -> (Unit))? = null
 
@@ -68,6 +69,11 @@ class DefaultQueryDialog(context : Context) : AlertDialog(context) {
                     newTags.add(tag)
                 }
 
+            if (default_query_dialog_loli_checkbox.isChecked)
+                excludeLoli.forEach { tag ->
+                    newTags.add(tag)
+                }
+
             onPositiveButtonClickListener?.invoke(newTags)
         }
 
@@ -120,6 +126,14 @@ class DefaultQueryDialog(context : Context) : AlertDialog(context) {
                 }
         }
 
+        with(view.default_query_dialog_loli_checkbox) {
+            isChecked = excludeLoli.all { tags.contains(it) }
+            if (excludeLoli.all { tags.contains(it) })
+                excludeLoli.forEach {
+                    tags.remove(it)
+                }
+        }
+
         with(view.default_query_dialog_edittext) {
             setText(tags.toString(), android.widget.TextView.BufferType.EDITABLE)
             addTextChangedListener(object : TextWatcher {

app/src/main/java/xyz/quaver/pupil/ui/dialog/GalleryDialog.kt

@@ -26,14 +26,15 @@ import android.view.LayoutInflater
 import android.view.View
 import android.widget.LinearLayout.LayoutParams
 import androidx.core.content.ContextCompat
-import androidx.recyclerview.widget.GridLayoutManager
 import androidx.recyclerview.widget.LinearLayoutManager
 import androidx.recyclerview.widget.RecyclerView
-import com.bumptech.glide.Glide
+import androidx.viewpager2.widget.ViewPager2
+import com.bumptech.glide.RequestManager
 import com.google.android.material.chip.Chip
 import com.google.android.material.snackbar.Snackbar
 import kotlinx.android.synthetic.main.dialog_gallery.*
-import kotlinx.android.synthetic.main.gallery_details.view.*
+import kotlinx.android.synthetic.main.dialog_gallery_details.view.*
+import kotlinx.android.synthetic.main.dialog_gallery_dotindicator.view.*
 import kotlinx.android.synthetic.main.item_gallery_details.view.*
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
@@ -46,14 +47,14 @@ import xyz.quaver.pupil.BuildConfig
 import xyz.quaver.pupil.Pupil
 import xyz.quaver.pupil.R
 import xyz.quaver.pupil.adapters.GalleryBlockAdapter
-import xyz.quaver.pupil.adapters.ThumbnailAdapter
+import xyz.quaver.pupil.adapters.ThumbnailPageAdapter
 import xyz.quaver.pupil.types.Tag
 import xyz.quaver.pupil.ui.ReaderActivity
 import xyz.quaver.pupil.util.ItemClickSupport
 import xyz.quaver.pupil.util.download.Cache
 import xyz.quaver.pupil.util.wordCapitalize
 
-class GalleryDialog(context: Context, private val galleryID: Int) : Dialog(context) {
+class GalleryDialog(context: Context, private val glide: RequestManager, private val galleryID: Int) : Dialog(context) {
 
     private val languages = context.resources.getStringArray(R.array.languages).map {
         it.split("|").let { split ->
@@ -61,8 +62,6 @@ class GalleryDialog(context: Context, private val galleryID: Int) : Dialog(conte
         }
     }.toMap()
 
-    private val glide = Glide.with(context)
-
     val onChipClickedHandler = ArrayList<((Tag) -> (Unit))>()
 
     override fun onCreate(savedInstanceState: Bundle?) {
@@ -90,7 +89,7 @@ class GalleryDialog(context: Context, private val galleryID: Int) : Dialog(conte
             try {
                 val gallery = getGallery(galleryID)
 
-                launch(Dispatchers.Main) {
+                gallery_cover.post {
                     gallery_progressbar.visibility = View.GONE
                     gallery_title.text = gallery.title
                     gallery_artist.text = gallery.artists.joinToString(", ") { it.wordCapitalize() }
@@ -112,7 +111,7 @@ class GalleryDialog(context: Context, private val galleryID: Int) : Dialog(conte
                         }
                     }
 
-                    Glide.with(context)
+                    glide
                         .load(gallery.cover)
                         .apply {
                             if (BuildConfig.CENSOR)
@@ -132,7 +131,7 @@ class GalleryDialog(context: Context, private val galleryID: Int) : Dialog(conte
     private fun addDetails(gallery: Gallery) {
         val inflater = LayoutInflater.from(context)
         
-        inflater.inflate(R.layout.gallery_details, gallery_contents, false).apply {
+        inflater.inflate(R.layout.dialog_gallery_details, gallery_contents, false).apply {
             gallery_details.setText(R.string.gallery_details)
 
             listOf(
@@ -171,12 +170,12 @@ class GalleryDialog(context: Context, private val galleryID: Int) : Dialog(conte
                                     "male" -> {
                                         setChipBackgroundColorResource(R.color.material_blue_700)
                                         setTextColor(ContextCompat.getColor(context, android.R.color.white))
-                                        ContextCompat.getDrawable(context, R.drawable.ic_gender_male_white)
+                                        ContextCompat.getDrawable(context, R.drawable.gender_male)
                                     }
                                     "female" -> {
                                         setChipBackgroundColorResource(R.color.material_pink_600)
                                         setTextColor(ContextCompat.getColor(context, android.R.color.white))
-                                        ContextCompat.getDrawable(context, R.drawable.ic_gender_female_white)
+                                        ContextCompat.getDrawable(context, R.drawable.gender_female)
                                     }
                                     else -> null
                                 }
@@ -208,15 +207,21 @@ class GalleryDialog(context: Context, private val galleryID: Int) : Dialog(conte
     private fun addThumbnails(gallery: Gallery) {
         val inflater = LayoutInflater.from(context)
 
-        inflater.inflate(R.layout.gallery_details, gallery_contents, false).apply {
+        inflater.inflate(R.layout.dialog_gallery_details, gallery_contents, false).apply {
             gallery_details.setText(R.string.gallery_thumbnails)
 
-            RecyclerView(context).apply {
-                layoutManager = GridLayoutManager(context, 3)
-                adapter = ThumbnailAdapter(glide, gallery.thumbnails)
-            }.let {
-                gallery_details_contents.addView(it, LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT))
+            val pager = ViewPager2(context).apply {
+                adapter = ThumbnailPageAdapter(glide, gallery.thumbnails)
             }
+
+            gallery_details_contents.addView(
+                pager,
+                LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT)
+            )
+
+            LayoutInflater.from(context).inflate(R.layout.dialog_gallery_dotindicator, gallery_details_contents)
+
+            gallery_dotindicator.setViewPager2(pager)
         }.let {
             gallery_contents.addView(it)
         }
@@ -226,7 +231,7 @@ class GalleryDialog(context: Context, private val galleryID: Int) : Dialog(conte
         val inflater = LayoutInflater.from(context)
         val galleries = ArrayList<GalleryBlock>()
 
-        val adapter = GalleryBlockAdapter(context, galleries).apply {
+        val adapter = GalleryBlockAdapter(glide, galleries).apply {
             onChipClickedHandler.add { tag ->
                 this@GalleryDialog.onChipClickedHandler.forEach { handler ->
                     handler.invoke(tag)
@@ -247,7 +252,7 @@ class GalleryDialog(context: Context, private val galleryID: Int) : Dialog(conte
             }
         }
 
-        inflater.inflate(R.layout.gallery_details, gallery_contents, false).apply {
+        inflater.inflate(R.layout.dialog_gallery_details, gallery_contents, false).apply {
             gallery_details.setText(R.string.gallery_related)
 
             RecyclerView(context).apply {
@@ -264,6 +269,7 @@ class GalleryDialog(context: Context, private val galleryID: Int) : Dialog(conte
                     .setOnItemLongClickListener { _, position, _ ->
                         GalleryDialog(
                             context,
+                            glide,
                             galleries[position].id
                         ).apply {
                             onChipClickedHandler.add { tag ->

app/src/main/java/xyz/quaver/pupil/ui/fragment/LockFragment.kt

@@ -1,81 +0,0 @@
-/*
- *     Pupil, Hitomi.la viewer for Android
- *     Copyright (C) 2020  tom5079
- *
- *     This program is free software: you can redistribute it and/or modify
- *     it under the terms of the GNU General Public License as published by
- *     the Free Software Foundation, either version 3 of the License, or
- *     (at your option) any later version.
- *
- *     This program is distributed in the hope that it will be useful,
- *     but WITHOUT ANY WARRANTY; without even the implied warranty of
- *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *     GNU General Public License for more details.
- *
- *     You should have received a copy of the GNU General Public License
- *     along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-package xyz.quaver.pupil.ui.fragment
-
-import android.content.Intent
-import android.os.Bundle
-import androidx.appcompat.app.AlertDialog
-import androidx.preference.Preference
-import androidx.preference.PreferenceFragmentCompat
-import xyz.quaver.pupil.R
-import xyz.quaver.pupil.ui.LockActivity
-import xyz.quaver.pupil.util.Lock
-import xyz.quaver.pupil.util.LockManager
-
-class LockFragment : PreferenceFragmentCompat() {
-
-    override fun onResume() {
-        super.onResume()
-
-        val lockManager = LockManager(context!!)
-
-        findPreference<Preference>("lock_pattern")?.summary =
-            if (lockManager.contains(Lock.Type.PATTERN))
-                getString(R.string.settings_lock_enabled)
-            else
-                ""
-    }
-
-    override fun onCreatePreferences(savedInstanceState: Bundle?, rootKey: String?) {
-        setPreferencesFromResource(R.xml.lock_preferences, rootKey)
-
-        with(findPreference<Preference>("lock_pattern")) {
-            this!!
-
-            if (LockManager(context!!).contains(Lock.Type.PATTERN))
-                summary = getString(R.string.settings_lock_enabled)
-
-            onPreferenceClickListener = Preference.OnPreferenceClickListener {
-                val lockManager = LockManager(context!!)
-
-                if (lockManager.contains(Lock.Type.PATTERN)) {
-                    AlertDialog.Builder(context).apply {
-                        setTitle(R.string.warning)
-                        setMessage(R.string.settings_lock_remove_message)
-
-                        setPositiveButton(android.R.string.yes) { _, _ ->
-                            lockManager.remove(Lock.Type.PATTERN)
-                            onResume()
-                        }
-                        setNegativeButton(android.R.string.no) { _, _ -> }
-                    }.show()
-                } else {
-                    val intent = Intent(context, LockActivity::class.java).apply {
-                        putExtra("mode", "add_lock")
-                        putExtra("type", "pattern")
-                    }
-
-                    startActivity(intent)
-                }
-
-                true
-            }
-        }
-    }
-}

app/src/main/java/xyz/quaver/pupil/ui/fragment/LockSettingsFragment.kt

@@ -0,0 +1,147 @@
+/*
+ *     Pupil, Hitomi.la viewer for Android
+ *     Copyright (C) 2020  tom5079
+ *
+ *     This program is free software: you can redistribute it and/or modify
+ *     it under the terms of the GNU General Public License as published by
+ *     the Free Software Foundation, either version 3 of the License, or
+ *     (at your option) any later version.
+ *
+ *     This program is distributed in the hope that it will be useful,
+ *     but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *     GNU General Public License for more details.
+ *
+ *     You should have received a copy of the GNU General Public License
+ *     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package xyz.quaver.pupil.ui.fragment
+
+import android.content.Intent
+import android.os.Bundle
+import android.widget.Toast
+import androidx.appcompat.app.AlertDialog
+import androidx.preference.Preference
+import androidx.preference.PreferenceFragmentCompat
+import androidx.preference.PreferenceManager
+import androidx.preference.SwitchPreferenceCompat
+import xyz.quaver.pupil.R
+import xyz.quaver.pupil.ui.LockActivity
+import xyz.quaver.pupil.util.Lock
+import xyz.quaver.pupil.util.LockManager
+
+class LockSettingsFragment :
+    PreferenceFragmentCompat() {
+
+    override fun onResume() {
+        super.onResume()
+
+        val lockManager = LockManager(requireContext())
+
+        findPreference<Preference>("lock_pattern")?.summary =
+            if (lockManager.contains(Lock.Type.PATTERN))
+                getString(R.string.settings_lock_enabled)
+            else
+                ""
+
+        findPreference<Preference>("lock_pin")?.summary =
+            if (lockManager.contains(Lock.Type.PIN))
+                getString(R.string.settings_lock_enabled)
+            else
+                ""
+
+        if (lockManager.isEmpty()) {
+            (findPreference<Preference>("lock_fingerprint") as SwitchPreferenceCompat).isChecked = false
+
+            PreferenceManager.getDefaultSharedPreferences(context).edit().putBoolean("lock_fingerprint", false).apply()
+        }
+    }
+
+    override fun onCreatePreferences(savedInstanceState: Bundle?, rootKey: String?) {
+        setPreferencesFromResource(R.xml.lock_preferences, rootKey)
+
+        with(findPreference<Preference>("lock_pattern")) {
+            this!!
+
+            if (LockManager(requireContext()).contains(Lock.Type.PATTERN))
+                summary = getString(R.string.settings_lock_enabled)
+
+            onPreferenceClickListener = Preference.OnPreferenceClickListener {
+                val lockManager = LockManager(requireContext())
+
+                if (lockManager.contains(Lock.Type.PATTERN)) {
+                    AlertDialog.Builder(requireContext()).apply {
+                        setTitle(R.string.warning)
+                        setMessage(R.string.settings_lock_remove_message)
+
+                        setPositiveButton(android.R.string.yes) { _, _ ->
+                            lockManager.remove(Lock.Type.PATTERN)
+                            onResume()
+                        }
+                        setNegativeButton(android.R.string.no) { _, _ -> }
+                    }.show()
+                } else {
+                    val intent = Intent(requireContext(), LockActivity::class.java).apply {
+                        putExtra("mode", "add_lock")
+                        putExtra("type", "pattern")
+                    }
+
+                    startActivity(intent)
+                }
+
+                true
+            }
+        }
+
+        with(findPreference<Preference>("lock_pin")) {
+            this!!
+
+            if (LockManager(requireContext()).contains(Lock.Type.PIN))
+                summary = getString(R.string.settings_lock_enabled)
+
+            onPreferenceClickListener = Preference.OnPreferenceClickListener {
+                val lockManager = LockManager(requireContext())
+
+                if (lockManager.contains(Lock.Type.PIN)) {
+                    AlertDialog.Builder(requireContext()).apply {
+                        setTitle(R.string.warning)
+                        setMessage(R.string.settings_lock_remove_message)
+
+                        setPositiveButton(android.R.string.yes) { _, _ ->
+                            lockManager.remove(Lock.Type.PIN)
+                            onResume()
+                        }
+                        setNegativeButton(android.R.string.no) { _, _ -> }
+                    }.show()
+                } else {
+                    val intent = Intent(requireContext(), LockActivity::class.java).apply {
+                        putExtra("mode", "add_lock")
+                        putExtra("type", "pin")
+                    }
+
+                    startActivity(intent)
+                }
+
+                true
+            }
+        }
+
+        with(findPreference<Preference>("lock_fingerprint")) {
+            this!!
+
+            setOnPreferenceChangeListener { _, newValue ->
+                this as SwitchPreferenceCompat
+
+                if (newValue == true && LockManager(requireContext()).isEmpty()) {
+                    isChecked = false
+
+                    Toast.makeText(requireContext(), R.string.settings_lock_fingerprint_without_lock, Toast.LENGTH_SHORT).show()
+                } else
+                    isChecked = newValue as Boolean
+
+                false
+            }
+        }
+    }
+}

app/src/main/java/xyz/quaver/pupil/ui/fragment/PINLockFragment.kt

@@ -0,0 +1,53 @@
+/*
+ *     Pupil, Hitomi.la viewer for Android
+ *     Copyright (C) 2020  tom5079
+ *
+ *     This program is free software: you can redistribute it and/or modify
+ *     it under the terms of the GNU General Public License as published by
+ *     the Free Software Foundation, either version 3 of the License, or
+ *     (at your option) any later version.
+ *
+ *     This program is distributed in the hope that it will be useful,
+ *     but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *     GNU General Public License for more details.
+ *
+ *     You should have received a copy of the GNU General Public License
+ *     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package xyz.quaver.pupil.ui.fragment
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.Fragment
+import com.andrognito.pinlockview.PinLockListener
+import kotlinx.android.synthetic.main.fragment_pin_lock.view.*
+import xyz.quaver.pupil.R
+
+class PINLockFragment : Fragment(), PinLockListener {
+
+    var onPINEntered: ((String) -> Unit)? = null
+
+    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
+        return inflater.inflate(R.layout.fragment_pin_lock, container, false).apply {
+            pin_lock_view.attachIndicatorDots(indicator_dots)
+            pin_lock_view.setPinLockListener(this@PINLockFragment)
+        }
+    }
+
+    override fun onComplete(pin: String?) {
+        onPINEntered?.invoke(pin!!)
+    }
+
+    override fun onEmpty() {
+
+    }
+
+    override fun onPinChange(pinLength: Int, intermediatePin: String?) {
+
+    }
+
+}

app/src/main/java/xyz/quaver/pupil/ui/fragment/SettingsFragment.kt

@@ -18,17 +18,26 @@
 
 package xyz.quaver.pupil.ui.fragment
 
-import android.content.Intent
-import android.content.SharedPreferences
+import android.Manifest
+import android.content.*
+import android.content.pm.PackageManager
+import android.os.Build
 import android.os.Bundle
+import android.widget.Toast
 import androidx.appcompat.app.AlertDialog
 import androidx.appcompat.app.AppCompatDelegate
+import androidx.core.app.ActivityCompat
 import androidx.core.content.ContextCompat
 import androidx.preference.Preference
 import androidx.preference.PreferenceCategory
 import androidx.preference.PreferenceFragmentCompat
 import androidx.preference.PreferenceManager
 import com.google.android.material.snackbar.Snackbar
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
+import net.rdrei.android.dirchooser.DirectoryChooserActivity
+import net.rdrei.android.dirchooser.DirectoryChooserConfig
 import xyz.quaver.pupil.Pupil
 import xyz.quaver.pupil.R
 import xyz.quaver.pupil.ui.LockActivity
@@ -38,7 +47,9 @@ import xyz.quaver.pupil.ui.dialog.DownloadLocationDialog
 import xyz.quaver.pupil.ui.dialog.MirrorDialog
 import xyz.quaver.pupil.ui.dialog.ProxyDialog
 import xyz.quaver.pupil.util.*
+import java.io.BufferedReader
 import java.io.File
+import java.io.InputStreamReader
 
 
 class SettingsFragment :
@@ -47,16 +58,12 @@ class SettingsFragment :
     Preference.OnPreferenceChangeListener,
     SharedPreferences.OnSharedPreferenceChangeListener {
 
-    override fun onCreate(savedInstanceState: Bundle?) {
-        super.onCreate(savedInstanceState)
-
-        PreferenceManager.getDefaultSharedPreferences(context).registerOnSharedPreferenceChangeListener(this)
-    }
+    lateinit var sharedPreference: SharedPreferences
 
     override fun onResume() {
         super.onResume()
 
-        val lockManager = LockManager(context!!)
+        val lockManager = LockManager(requireContext())
 
         findPreference<Preference>("app_lock")?.summary = if (lockManager.locks.isNullOrEmpty()) {
             getString(R.string.settings_lock_none)
@@ -72,9 +79,13 @@ class SettingsFragment :
     }
 
     private fun getDirSize(dir: File) : String {
-        val size = dir.walk().map { it.length() }.sum()
-
-        return getString(R.string.settings_clear_summary, byteToString(size))
+        return getString(R.string.settings_storage_usage,
+            Runtime.getRuntime().exec("du -hs " + dir.absolutePath).let {
+                BufferedReader(InputStreamReader(it.inputStream)).use { reader ->
+                    reader.readLine()?.split('\t')?.firstOrNull() ?: "0"
+                }
+            }
+        )
     }
 
     override fun onPreferenceClick(preference: Preference?): Boolean {
@@ -86,39 +97,55 @@ class SettingsFragment :
                     checkUpdate(activity as SettingsActivity, true)
                 }
                 "delete_cache" -> {
-                    val dir = File(context.cacheDir, "imageCache")
+                    val dir = File(requireContext().cacheDir, "imageCache")
 
-                    AlertDialog.Builder(context).apply {
+                    AlertDialog.Builder(requireContext()).apply {
                         setTitle(R.string.warning)
                         setMessage(R.string.settings_clear_cache_alert_message)
                         setPositiveButton(android.R.string.yes) { _, _ ->
                             if (dir.exists())
                                 dir.deleteRecursively()
 
-                            summary = getDirSize(dir)
+                            summary = getString(R.string.settings_storage_usage_loading)
+
+                            CoroutineScope(Dispatchers.IO).launch {
+                                getDirSize(dir).let {
+                                    launch(Dispatchers.Main) {
+                                        this@with.summary = it
+                                    }
+                                }
+                            }
                         }
                         setNegativeButton(android.R.string.no) { _, _ -> }
                     }.show()
                 }
                 "delete_downloads" -> {
-                    val dir = getDownloadDirectory(context)
+                    val dir = getDownloadDirectory(requireContext())
 
-                    AlertDialog.Builder(context).apply {
+                    AlertDialog.Builder(requireContext()).apply {
                         setTitle(R.string.warning)
                         setMessage(R.string.settings_clear_downloads_alert_message)
                         setPositiveButton(android.R.string.yes) { _, _ ->
                             if (dir.exists())
                                 dir.deleteRecursively()
 
-                            summary = getDirSize(dir)
+                            summary = getString(R.string.settings_storage_usage_loading)
+
+                            CoroutineScope(Dispatchers.IO).launch {
+                                getDirSize(dir).let {
+                                    launch(Dispatchers.Main) {
+                                        this@with.summary = it
+                                    }
+                                }
+                            }
                         }
                         setNegativeButton(android.R.string.no) { _, _ -> }
                     }.show()
                 }
                 "clear_history" -> {
-                    val histories = (context.applicationContext as Pupil).histories
+                    val histories = (requireContext().applicationContext as Pupil).histories
 
-                    AlertDialog.Builder(context).apply {
+                    AlertDialog.Builder(requireContext()).apply {
                         setTitle(R.string.warning)
                         setMessage(R.string.settings_clear_history_alert_message)
                         setPositiveButton(android.R.string.yes) { _, _ ->
@@ -129,10 +156,10 @@ class SettingsFragment :
                     }.show()
                 }
                 "dl_location" -> {
-                    DownloadLocationDialog(activity!!).show()
+                    DownloadLocationDialog(requireActivity()).show()
                 }
                 "default_query" -> {
-                    DefaultQueryDialog(context).apply {
+                    DefaultQueryDialog(requireContext()).apply {
                         onPositiveButtonClickListener = { newTags ->
                             sharedPreferences.edit().putString("default_query", newTags.toString()).apply()
                             summary = newTags.toString()
@@ -140,20 +167,23 @@ class SettingsFragment :
                     }.show()
                 }
                 "app_lock" -> {
-                    val intent = Intent(context, LockActivity::class.java)
+                    val intent = Intent(requireContext(), LockActivity::class.java)
                     activity?.startActivityForResult(intent, REQUEST_LOCK)
                 }
                 "mirrors" -> {
-                    MirrorDialog(context)
+                    MirrorDialog(requireContext())
                         .show()
                 }
                 "proxy" -> {
-                    ProxyDialog(context)
+                    ProxyDialog(requireContext())
                         .show()
                 }
+                "nomedia" -> {
+                    File(getDownloadDirectory(context), ".nomedia").createNewFile()
+                }
                 "backup" -> {
-                    File(ContextCompat.getDataDir(context), "favorites.json").copyTo(
-                        File(getDownloadDirectory(context), "favorites.json"),
+                    File(ContextCompat.getDataDir(requireContext()), "favorites.json").copyTo(
+                        File(getDownloadDirectory(requireContext()), "favorites.json"),
                         true
                     )
 
@@ -168,6 +198,37 @@ class SettingsFragment :
 
                     activity?.startActivityForResult(intent, REQUEST_RESTORE)
                 }
+                "old_import_galleries" -> {
+                    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
+
+                        if (ContextCompat.checkSelfPermission(requireContext(), Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED)
+                            ActivityCompat.requestPermissions(requireActivity(), arrayOf(Manifest.permission.WRITE_EXTERNAL_STORAGE), REQUEST_WRITE_PERMISSION_AND_SAF)
+                        else {
+                            val intent = Intent(Intent.ACTION_OPEN_DOCUMENT_TREE).apply {
+                                putExtra("android.content.extra.SHOW_ADVANCED", true)
+                            }
+
+                            activity?.startActivityForResult(intent, REQUEST_IMPORT_OLD_GALLERIES)
+                        }
+                    } else {    // Can't use SAF on old Androids!
+                        val config = DirectoryChooserConfig.builder()
+                            .newDirectoryName("Pupil")
+                            .allowNewDirectoryNameModification(true)
+                            .build()
+
+                        val intent = Intent(requireContext(), DirectoryChooserActivity::class.java).apply {
+                            putExtra(DirectoryChooserActivity.EXTRA_CONFIG, config)
+                        }
+
+                        activity?.startActivityForResult(intent, REQUEST_IMPORT_OLD_GALLERIES_OLD)
+                    }
+                }
+                "user_id" -> {
+                    (context.getSystemService(Context.CLIPBOARD_SERVICE) as ClipboardManager).setPrimaryClip(
+                        ClipData.newPlainText("user_id", sharedPreference.getString("user_id", ""))
+                    )
+                    Toast.makeText(context, R.string.settings_user_id_toast, Toast.LENGTH_SHORT).show()
+                }
                 else -> return false
             }
         }
@@ -201,10 +262,10 @@ class SettingsFragment :
 
             when (key) {
                 "proxy" -> {
-                    summary = getProxyInfo(context).type.name
+                    summary = getProxyInfo(requireContext()).type.name
                 }
                 "dl_location" -> {
-                    summary = getDownloadDirectory(context!!).canonicalPath
+                    summary = getDownloadDirectory(requireContext()).canonicalPath
                 }
             }
         }
@@ -213,6 +274,9 @@ class SettingsFragment :
     override fun onCreatePreferences(savedInstanceState: Bundle?, rootKey: String?) {
         setPreferencesFromResource(R.xml.root_preferences, rootKey)
 
+        sharedPreference = PreferenceManager.getDefaultSharedPreferences(requireContext())
+        sharedPreference.registerOnSharedPreferenceChangeListener(this)
+
         initPreferences()
     }
 
@@ -229,42 +293,58 @@ class SettingsFragment :
 
                     when (key) {
                         "app_version" -> {
-                            val manager = context.packageManager
-                            val info = manager.getPackageInfo(context.packageName, 0)
-                            summary = context.getString(R.string.settings_app_version_description, info.versionName)
+                            val manager = requireContext().packageManager
+                            val info = manager.getPackageInfo(requireContext().packageName, 0)
+                            summary = requireContext().getString(R.string.settings_app_version_description, info.versionName)
 
                             onPreferenceClickListener = this@SettingsFragment
                         }
                         "delete_cache" -> {
-                            val dir = File(context.cacheDir, "imageCache")
-                            summary = getDirSize(dir)
+                            val dir = File(requireContext().cacheDir, "imageCache")
+
+                            summary = getString(R.string.settings_storage_usage_loading)
+                            CoroutineScope(Dispatchers.IO).launch {
+                                getDirSize(dir).let {
+                                    launch(Dispatchers.Main) {
+                                        this@with.summary = it
+                                    }
+                                }
+                            }
 
                             onPreferenceClickListener = this@SettingsFragment
                         }
                         "delete_downloads" -> {
-                            val dir = getDownloadDirectory(context)
-                            summary = getDirSize(dir)
+                            val dir = getDownloadDirectory(requireContext())
+
+                            summary = getString(R.string.settings_storage_usage_loading)
+                            CoroutineScope(Dispatchers.IO).launch {
+                                getDirSize(dir).let {
+                                    launch(Dispatchers.Main) {
+                                        this@with.summary = it
+                                    }
+                                }
+                            }
 
                             onPreferenceClickListener = this@SettingsFragment
                         }
                         "clear_history" -> {
-                            val histories = (activity!!.application as Pupil).histories
+                            val histories = (requireActivity().application as Pupil).histories
                             summary = getString(R.string.settings_clear_history_summary, histories.size)
 
                             onPreferenceClickListener = this@SettingsFragment
                         }
                         "dl_location" -> {
-                            summary = getDownloadDirectory(context).canonicalPath
+                            summary = getDownloadDirectory(requireContext()).canonicalPath
 
                             onPreferenceClickListener = this@SettingsFragment
                         }
                         "default_query" -> {
-                            summary = PreferenceManager.getDefaultSharedPreferences(context).getString("default_query", "") ?: ""
+                            summary = sharedPreference.getString("default_query", "") ?: ""
 
                             onPreferenceClickListener = this@SettingsFragment
                         }
                         "app_lock" -> {
-                            val lockManager = LockManager(context)
+                            val lockManager = LockManager(requireContext())
                             summary =
                                 if (lockManager.locks.isNullOrEmpty()) {
                                     getString(R.string.settings_lock_none)
@@ -284,19 +364,29 @@ class SettingsFragment :
                             onPreferenceClickListener = this@SettingsFragment
                         }
                         "proxy" -> {
-                            summary = getProxyInfo(context).type.name
+                            summary = getProxyInfo(requireContext()).type.name
 
                             onPreferenceClickListener = this@SettingsFragment
                         }
                         "dark_mode" -> {
                             onPreferenceChangeListener = this@SettingsFragment
                         }
+                        "nomedia" -> {
+                            onPreferenceClickListener = this@SettingsFragment
+                        }
                         "backup" -> {
                             onPreferenceClickListener = this@SettingsFragment
                         }
                         "restore" -> {
                             onPreferenceClickListener = this@SettingsFragment
                         }
+                        "old_import_galleries" -> {
+                            onPreferenceClickListener = this@SettingsFragment
+                        }
+                        "user_id" -> {
+                            summary = sharedPreference.getString("user_id", "")
+                            onPreferenceClickListener = this@SettingsFragment
+                        }
                     }
 
                 }

app/src/main/java/xyz/quaver/pupil/util/ConstValues.kt

@@ -20,11 +20,20 @@ package xyz.quaver.pupil.util
 
 import kotlinx.serialization.json.Json
 import kotlinx.serialization.json.JsonConfiguration
+import okhttp3.Dispatcher
+import okhttp3.OkHttpClient
+import xyz.quaver.proxy
+import java.util.concurrent.Executors
+import java.util.concurrent.TimeUnit
 
 const val REQUEST_LOCK = 38238
 const val REQUEST_RESTORE = 16546
+const val REQUEST_IMPORT_OLD_GALLERIES = 6458
+const val REQUEST_IMPORT_OLD_GALLERIES_OLD = 5946
 const val REQUEST_DOWNLOAD_FOLDER = 3874
 const val REQUEST_DOWNLOAD_FOLDER_OLD = 3425
 const val REQUEST_WRITE_PERMISSION_AND_SAF = 13900
 
+const val NOTIFICATION_ID_UPDATE = 2345
+
 val json = Json(JsonConfiguration.Stable)

app/src/main/java/xyz/quaver/pupil/util/download/Cache.kt

@@ -23,27 +23,32 @@ import android.content.ContextWrapper
 import android.util.Base64
 import android.util.SparseArray
 import androidx.preference.PreferenceManager
-import com.crashlytics.android.Crashlytics
-import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.async
-import kotlinx.coroutines.withContext
-import kotlinx.io.InputStream
+import com.google.firebase.crashlytics.FirebaseCrashlytics
+import kotlinx.coroutines.*
 import xyz.quaver.Code
 import xyz.quaver.hitomi.GalleryBlock
 import xyz.quaver.hitomi.Reader
 import xyz.quaver.proxy
 import xyz.quaver.pupil.util.getCachedGallery
 import xyz.quaver.pupil.util.getDownloadDirectory
+import xyz.quaver.pupil.util.isParentOf
 import xyz.quaver.pupil.util.json
+import java.io.BufferedInputStream
 import java.io.File
 import java.io.FileOutputStream
+import java.io.InputStream
 import java.net.URL
+import java.util.*
 import java.util.concurrent.locks.Lock
 import java.util.concurrent.locks.ReentrantLock
 
 class Cache(context: Context) : ContextWrapper(context) {
 
+    companion object {
+        private val moving = mutableListOf<Int>()
+        private val readers = SparseArray<Reader?>()
+    }
+
     private val locks = SparseArray<Lock>()
     private fun lock(galleryID: Int) {
         synchronized(locks) {
@@ -83,6 +88,9 @@ class Cache(context: Context) : ContextWrapper(context) {
     }
 
     fun setCachedMetadata(galleryID: Int, metadata: Metadata) {
+        if (preference.getBoolean("cache_disable", false))
+            return
+
         val file = File(getCachedGallery(galleryID), ".metadata").also {
             if (!it.exists())
                 it.createNewFile()
@@ -94,6 +102,7 @@ class Cache(context: Context) : ContextWrapper(context) {
     suspend fun getThumbnail(galleryID: Int): String? {
         val metadata = Cache(this).getCachedMetadata(galleryID)
 
+        @Suppress("BlockingMethodInNonBlockingContext")
         val thumbnail = if (metadata?.thumbnail == null)
             withContext(Dispatchers.IO) {
                 val thumbnails = getGalleryBlock(galleryID)?.thumbnails
@@ -154,7 +163,7 @@ class Cache(context: Context) : ContextWrapper(context) {
     }
 
     fun getReaderOrNull(galleryID: Int): Reader? {
-        return getCachedMetadata(galleryID)?.reader
+        return readers[galleryID] ?: getCachedMetadata(galleryID)?.reader
     }
 
     suspend fun getReader(galleryID: Int): Reader? {
@@ -175,15 +184,21 @@ class Cache(context: Context) : ContextWrapper(context) {
                 it
         }
 
-        val reader = if (metadata?.reader == null) {
-            CoroutineScope(Dispatchers.IO).async {
+        val reader =
+            if (readers[galleryID] != null)
+                return readers[galleryID]
+            else if (metadata?.reader == null) {
                 var retval: Reader? = null
 
                 for (source in sources) {
                     retval = try {
-                        source.value.invoke()
+                        withContext(Dispatchers.IO) {
+                            withTimeoutOrNull(1000) {
+                                    source.value.invoke()
+                            }
+                        }
                     } catch (e: Exception) {
-                        Crashlytics.logException(e)
+                        FirebaseCrashlytics.getInstance().recordException(e)
                         null
                     }
 
@@ -192,9 +207,10 @@ class Cache(context: Context) : ContextWrapper(context) {
                 }
 
                 retval
-            }.await() ?: return null
-        } else
-            metadata.reader
+            } else
+                metadata.reader
+
+        readers.put(galleryID, reader)
 
         setCachedMetadata(
             galleryID,
@@ -236,25 +252,54 @@ class Cache(context: Context) : ContextWrapper(context) {
 
 
     fun putImage(galleryID: Int, index: Int, ext: String, data: InputStream) {
+        if (preference.getBoolean("cache_disable", false))
+            return
+
         val cache = File(getCachedGallery(galleryID), "%05d.$ext".format(index)).also {
             if (!it.exists())
                 it.createNewFile()
         }
 
-        data.use {
-            it.copyTo(FileOutputStream(cache))
+        try {
+            BufferedInputStream(data).use { inputStream ->
+                FileOutputStream(cache).use { outputStream ->
+                    inputStream.copyTo(outputStream)
+                }
+            }
+        } catch (e: Exception) {
+            cache.delete()
         }
     }
 
     fun moveToDownload(galleryID: Int) {
-        val cache = getCachedGallery(galleryID).also {
-            if (!it.exists())
-                return
-        }
-        val download = File(getDownloadDirectory(this), galleryID.toString())
+        if (preference.getBoolean("cache_disable", false))
+            return
 
-        cache.copyRecursively(download, true) { _, _ -> OnErrorAction.SKIP }
-        cache.deleteRecursively()
+        if (moving.contains(galleryID))
+            return
+
+        CoroutineScope(Dispatchers.IO).launch {
+            val cache = getCachedGallery(galleryID).also {
+                if (!it.exists())
+                    return@launch
+            }
+            val download = File(getDownloadDirectory(this@Cache), galleryID.toString())
+
+            if (download.isParentOf(cache))
+                return@launch
+
+            FirebaseCrashlytics.getInstance().log("MOVING ${cache.canonicalPath} --> ${download.canonicalPath}")
+
+            cache.copyRecursively(download, true) { file, err ->
+                FirebaseCrashlytics.getInstance().log("MOVING ERROR ${file.canonicalPath} ${err.message}")
+                OnErrorAction.SKIP
+            }
+            FirebaseCrashlytics.getInstance().log("MOVED ${cache.canonicalPath}")
+
+            FirebaseCrashlytics.getInstance().log("DELETING ${cache.canonicalPath}")
+            cache.deleteRecursively()
+            FirebaseCrashlytics.getInstance().log("DELETED ${cache.canonicalPath}")
+        }
     }
 
     fun isDownloading(galleryID: Int) = getCachedMetadata(galleryID)?.isDownloading == true

app/src/main/java/xyz/quaver/pupil/util/download/DownloadWorker.kt

@@ -29,8 +29,7 @@ import androidx.core.app.NotificationCompat
 import androidx.core.app.NotificationManagerCompat
 import androidx.core.app.TaskStackBuilder
 import androidx.preference.PreferenceManager
-import com.crashlytics.android.Crashlytics
-import io.fabric.sdk.android.Fabric
+import com.google.firebase.crashlytics.FirebaseCrashlytics
 import kotlinx.coroutines.*
 import okhttp3.*
 import okio.*
@@ -46,11 +45,10 @@ import xyz.quaver.pupil.R
 import xyz.quaver.pupil.ui.ReaderActivity
 import java.io.File
 import java.io.IOException
-import java.util.concurrent.Executors
 import java.util.concurrent.LinkedBlockingQueue
 import java.util.concurrent.TimeUnit
 
-@UseExperimental(ExperimentalCoroutinesApi::class)
+@OptIn(ExperimentalCoroutinesApi::class)
 class DownloadWorker private constructor(context: Context) : ContextWrapper(context) {
 
     private val preferences : SharedPreferences = PreferenceManager.getDefaultSharedPreferences(this)
@@ -78,7 +76,7 @@ class DownloadWorker private constructor(context: Context) : ContextWrapper(cont
         private var bufferedSource : BufferedSource? = null
 
         override fun contentLength() = responseBody.contentLength()
-        override fun contentType() = responseBody.contentType() ?: null
+        override fun contentType() = responseBody.contentType()
 
         override fun source(): BufferedSource {
             if (bufferedSource == null)
@@ -130,41 +128,38 @@ class DownloadWorker private constructor(context: Context) : ContextWrapper(cont
     * SECONDARY VALUE
     *  0 <= value < 100 -> Download in progress
     *  Float.POSITIVE_INFINITY -> Download completed
-    *  Float.NaN -> Exception
     */
     val progress = SparseArray<MutableList<Float>?>()
-    /*
-    * KEY
-    *  primary galleryID
-    *  secondary index
-    * PRIMARY VALUE
-    *  MutableList -> Download in progress / Loading
-    *  null -> Gallery doesn't exist
-    * SECONDARY VALUE
-    *  Throwable -> Exception
-    *  null -> Download in progress / Loading
-    */
-    val exception = SparseArray<MutableList<Throwable?>?>()
-    val notification = SparseArray<NotificationCompat.Builder>()
+    val notification = SparseArray<NotificationCompat.Builder?>()
 
     private val loop = loop()
     private val worker = SparseArray<Job?>()
-    val clients = SparseArray<OkHttpClient>()
 
     val interceptor = Interceptor { chain ->
         val request = chain.request()
-        val response = chain.proceed(request)
+        var response = chain.proceed(request)
+
+        var retry = 5
+        while (!response.isSuccessful && retry > 0) {
+            response = chain.proceed(request)
+            retry--
+        }
 
         response.newBuilder()
-            .body(ProgressResponseBody(request.tag(), response.body(), progressListener))
-            .build()
+            .body(response.body()?.let {
+                ProgressResponseBody(request.tag(), it, progressListener)
+            }).build()
     }
-    fun buildClient() =
+
+    val client =
         OkHttpClient.Builder()
-            .addInterceptor(interceptor)
             .connectTimeout(0, TimeUnit.SECONDS)
+            .addInterceptor(interceptor)
             .readTimeout(0, TimeUnit.SECONDS)
-            .dispatcher(Dispatcher(Executors.newFixedThreadPool(4)))
+            .dispatcher(Dispatcher().apply {
+                maxRequests = 4
+                maxRequestsPerHost = 4
+            })
             .proxy(proxy)
             .build()
 
@@ -172,20 +167,20 @@ class DownloadWorker private constructor(context: Context) : ContextWrapper(cont
         queue.clear()
 
         loop.cancel()
-        for (i in 0..worker.size()) {
+        for (i in 0 until worker.size()) {
             val galleryID = worker.keyAt(i)
 
             Cache(this@DownloadWorker).setDownloading(galleryID, false)
             worker[galleryID]?.cancel()
         }
 
-        for (i in 0 until clients.size()) {
-            clients.valueAt(i).dispatcher().cancelAll()
+        client.dispatcher().queuedCalls().filter {
+            it.request().tag() is Pair<*, *>
+        }.forEach {
+            it.cancel()
         }
-        clients.clear()
 
         progress.clear()
-        exception.clear()
         notification.clear()
         notificationManager.cancelAll()
     }
@@ -194,20 +189,18 @@ class DownloadWorker private constructor(context: Context) : ContextWrapper(cont
         queue.remove(galleryID)
         worker[galleryID]?.cancel()
 
-        clients[galleryID]?.dispatcher()?.cancelAll()
-        clients.remove(galleryID)
+        client.dispatcher().queuedCalls().filter {
+            ((it.request().tag() as Pair<*, *>).first as Int) == galleryID
+        }.forEach {
+            it.cancel()
+        }
 
         progress.remove(galleryID)
-        exception.remove(galleryID)
         notification.remove(galleryID)
         notificationManager.cancel(galleryID)
-
-        if (progress.indexOfKey(galleryID) >= 0) {
-            Cache(this@DownloadWorker).setDownloading(galleryID, false)
-        }
     }
 
-    fun isCompleted(galleryID: Int) = progress[galleryID]?.all { !it.isFinite() } == true
+    fun isCompleted(galleryID: Int) = progress[galleryID]?.all { it.isInfinite() } == true
 
     private fun queueDownload(galleryID: Int, reader: Reader, index: Int, callback: Callback) {
         val lowQuality = preferences.getBoolean("low_quality", false)
@@ -219,7 +212,7 @@ class DownloadWorker private constructor(context: Context) : ContextWrapper(cont
                         imageUrlFromImage(
                             galleryID,
                             reader.galleryInfo.files[index],
-                            lowQuality
+                            !lowQuality
                         )
                     )
                     addHeader("Referer", getReferer(galleryID))
@@ -236,10 +229,7 @@ class DownloadWorker private constructor(context: Context) : ContextWrapper(cont
             tag(galleryID to index)
         }.build()
 
-        if (clients.get(galleryID) == null)
-            clients.put(galleryID, buildClient())
-
-        clients[galleryID]?.newCall(request)?.enqueue(callback)
+        client.newCall(request).enqueue(callback)
     }
 
     private fun download(galleryID: Int) = CoroutineScope(Dispatchers.IO).launch {
@@ -248,7 +238,6 @@ class DownloadWorker private constructor(context: Context) : ContextWrapper(cont
         //gallery doesn't exist
         if (reader == null) {
             progress.put(galleryID, null)
-            exception.put(galleryID, null)
 
             Cache(this@DownloadWorker).setDownloading(galleryID, false)
             return@launch
@@ -262,12 +251,11 @@ class DownloadWorker private constructor(context: Context) : ContextWrapper(cont
             else
                 0F
         }.toMutableList())
-        exception.put(galleryID, reader.galleryInfo.files.map { null }.toMutableList())
 
         if (notification[galleryID] == null)
             initNotification(galleryID)
 
-        notification[galleryID].setContentTitle(reader.galleryInfo.title)
+        notification[galleryID]?.setContentTitle(reader.galleryInfo.title)
         notify(galleryID)
 
         if (isCompleted(galleryID)) {
@@ -284,44 +272,33 @@ class DownloadWorker private constructor(context: Context) : ContextWrapper(cont
         for (i in reader.galleryInfo.files.indices) {
             val callback = object : Callback {
                 override fun onFailure(call: Call, e: IOException) {
+                    if (e.message?.contains("cancel", true) != false)
+                        return
+
                     Log.i("PUPILD", "FAIL ${call.request().tag()} (${e.message})")
-                    if (Fabric.isInitialized() && e.message != "Canceled")
-                        Crashlytics.logException(e)
-
-                    progress[galleryID]?.set(i, Float.NaN)
-                    exception[galleryID]?.set(i, e)
-
-                    notify(galleryID)
-
-                    CoroutineScope(Dispatchers.IO).launch {
-                        if (isCompleted(galleryID) && clients.indexOfKey(galleryID) >= 0) {
-                            clients.remove(galleryID)
-                            with(Cache(this@DownloadWorker)) {
-                                if (isDownloading(galleryID)) {
-                                    moveToDownload(galleryID)
-                                    setDownloading(galleryID, false)
-                                }
-                            }
-                        }
+                    FirebaseCrashlytics.getInstance().apply {
+                        log("FAIL ${call.request().tag()} (${e.message})")
+                        setCustomKey("POS", "FAIL")
+                        recordException(e)
                     }
+
+                    cancel(galleryID)
+                    queue.add(galleryID)
                 }
 
                 override fun onResponse(call: Call, response: Response) {
-                    Log.i("PUPILD", "OK ${call.request().tag()}")
-
                     val ext = call.request().url().encodedPath().split('.').last()
 
                     try {
                         response.body().use {
-                            Cache(this@DownloadWorker).putImage(galleryID, i, ext, it.byteStream())
+                            Cache(this@DownloadWorker).putImage(galleryID, i, ext, it!!.byteStream())
                         }
                         progress[galleryID]?.set(i, Float.POSITIVE_INFINITY)
 
                         notify(galleryID)
 
                         CoroutineScope(Dispatchers.IO).launch {
-                            if (isCompleted(galleryID) && clients.indexOfKey(galleryID) >= 0) {
-                                clients.remove(galleryID)
+                            if (isCompleted(galleryID)) {
                                 with(Cache(this@DownloadWorker)) {
                                     if (isDownloading(galleryID)) {
                                         moveToDownload(galleryID)
@@ -330,48 +307,29 @@ class DownloadWorker private constructor(context: Context) : ContextWrapper(cont
                                 }
                             }
                         }
-
-                        Log.i("PUPILD", "SUCCESS ${call.request().tag()}")
                     } catch (e: Exception) {
-
-                        progress[galleryID]?.set(i, Float.NaN)
-                        exception[galleryID]?.set(i, e)
-
-                        notify(galleryID)
-
-                        CoroutineScope(Dispatchers.IO).launch {
-                            if (isCompleted(galleryID) && clients.indexOfKey(galleryID) >= 0) {
-                                clients.remove(galleryID)
-                                with(Cache(this@DownloadWorker)) {
-                                    if (isDownloading(galleryID)) {
-                                        moveToDownload(galleryID)
-                                        setDownloading(galleryID, false)
-                                    }
-                                }
-                            }
+                        FirebaseCrashlytics.getInstance().apply {
+                            log("FAIL ON OK ${call.request().tag()} (${e.message})")
+                            setCustomKey("POS", "FAIL ON OK")
+                            recordException(e)
                         }
 
                         File(Cache(this@DownloadWorker).getCachedGallery(galleryID), "%05d.$ext".format(i)).delete()
 
-                        Log.i("PUPILD", "FAIL ON OK ${call.request().tag()} (${e.message})")
+                        cancel(galleryID)
+                        queue.add(galleryID)
                     }
                 }
             }
 
-            if (progress[galleryID]?.get(i)?.isFinite() == true) {
+            if (progress[galleryID]?.get(i)?.isFinite() == true)
                 queueDownload(galleryID, reader, i, callback)
-                Log.i("PUPILD", "$galleryID QUEUED $i")
-            } else {
-                Log.i("PUPILD", "$galleryID SKIPPED $i (${progress[galleryID]?.get(i)})")
-            }
         }
     }
 
     private fun notify(galleryID: Int) {
         val max = progress[galleryID]?.size ?: 0
-        val progress = progress[galleryID]?.count { !it.isFinite() } ?: 0
-
-        Log.i("PUPILD", "NOTIFY $galleryID ${isCompleted(galleryID)} $progress/$max")
+        val progress = progress[galleryID]?.count { it.isInfinite() } ?: 0
 
         if (isCompleted(galleryID)) {
             notification[galleryID]
@@ -387,7 +345,7 @@ class DownloadWorker private constructor(context: Context) : ContextWrapper(cont
                 ?.setContentText("$progress/$max")
 
         if (Cache(this).isDownloading(galleryID) && notification[galleryID] != null)
-            notificationManager.notify(galleryID, notification[galleryID].build())
+            notification[galleryID]?.let { notificationManager.notify(galleryID, it.build()) }
         else
             notificationManager.cancel(galleryID)
     }
@@ -418,19 +376,14 @@ class DownloadWorker private constructor(context: Context) : ContextWrapper(cont
 
             val galleryID = queue.peek() ?: continue
 
-            if (clients.indexOfKey(galleryID) >= 0)    // Gallery already downloading!
-                continue
+            if (progress.indexOfKey(galleryID) >= 0)    // Gallery already downloading!
+                cancel(galleryID)
 
             if (notification[galleryID] == null)
                 initNotification(galleryID)
 
             if (Cache(this@DownloadWorker).isDownloading(galleryID))
-                notificationManager.notify(galleryID, notification[galleryID].build())
-
-            if (clients.size() >= preferences.getInt("max_download", 4))
-                continue
-
-            Log.i("PUPILD", "QUEUED $galleryID #${clients.size()+1}")
+                notification[galleryID]?.let { notificationManager.notify(galleryID, it.build()) }
 
             worker.put(galleryID, download(galleryID))
             queue.poll()

app/src/main/java/xyz/quaver/pupil/util/file.kt

@@ -211,4 +211,7 @@ fun Uri.toFile(context: Context): File? {
     }
 
     return File(context.getExternalFilesDir(null)?.canonicalPath?.substringBeforeLast("/Android/data") ?: return null, folderName)
-}
+}
+
+fun File.isParentOf(another: File) =
+    another.absolutePath.startsWith(this.absolutePath)

app/src/main/java/xyz/quaver/pupil/util/history.kt

@@ -18,13 +18,14 @@
 
 package xyz.quaver.pupil.util
 
-import kotlinx.serialization.list
-import kotlinx.serialization.serializer
+import kotlinx.serialization.KSerializer
+import kotlinx.serialization.builtins.list
+import kotlinx.serialization.builtins.serializer
 import java.io.File
 
 class Histories(private val file: File) : ArrayList<Int>() {
 
-    val serializer = Int.serializer().list
+    val serializer: KSerializer<List<Int>> = Int.serializer().list
 
     init {
         if (!file.exists())
@@ -40,7 +41,7 @@ class Histories(private val file: File) : ArrayList<Int>() {
     fun load() : Histories {
         return apply {
             super.clear()
-            addAll(
+            super.addAll(
                 json.parse(
                     serializer,
                     file.bufferedReader().use { it.readText() }
@@ -66,6 +67,20 @@ class Histories(private val file: File) : ArrayList<Int>() {
         return true
     }
 
+    override fun addAll(elements: Collection<Int>): Boolean {
+        load()
+
+        for (e in elements) {
+            if (contains(e))
+                super.remove(e)
+            super.add(0, e)
+        }
+
+        save()
+
+        return true
+    }
+
     override fun remove(element: Int): Boolean {
         load()
         val retval = super.remove(element)

app/src/main/java/xyz/quaver/pupil/util/lock.kt

@@ -22,9 +22,7 @@ import android.content.Context
 import android.content.ContextWrapper
 import androidx.core.content.ContextCompat
 import kotlinx.serialization.Serializable
-import kotlinx.serialization.json.Json
-import kotlinx.serialization.json.JsonConfiguration
-import kotlinx.serialization.list
+import kotlinx.serialization.builtins.list
 import java.io.File
 import java.security.MessageDigest
 

app/src/main/java/xyz/quaver/pupil/util/misc.kt

@@ -22,7 +22,7 @@ import android.annotation.SuppressLint
 import java.util.*
 import kotlin.collections.ArrayList
 
-@UseExperimental(ExperimentalStdlibApi::class)
+@OptIn(ExperimentalStdlibApi::class)
 fun String.wordCapitalize() : String {
     val result = ArrayList<String>()
 

app/src/main/java/xyz/quaver/pupil/util/proxy.kt

@@ -42,7 +42,7 @@ data class ProxyInfo(
     }
 
     fun authenticator() = Authenticator { _, response ->
-        val credential = Credentials.basic(username, password)
+        val credential = Credentials.basic(username ?: "", password ?: "")
 
         response.request().newBuilder()
             .header("Proxy-Authorization", credential)

app/src/main/java/xyz/quaver/pupil/util/update.kt

@@ -18,30 +18,39 @@
 
 package xyz.quaver.pupil.util
 
+import android.annotation.SuppressLint
+import android.app.DownloadManager
 import android.app.PendingIntent
 import android.content.Context
 import android.content.Intent
-import android.webkit.MimeTypeMap
+import android.net.Uri
+import android.util.Base64
 import androidx.appcompat.app.AlertDialog
-import androidx.appcompat.app.AppCompatActivity
 import androidx.core.app.NotificationCompat
 import androidx.core.app.NotificationManagerCompat
-import androidx.core.content.FileProvider
-import androidx.lifecycle.Lifecycle
 import androidx.preference.PreferenceManager
-import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.launch
+import kotlinx.coroutines.*
 import kotlinx.serialization.json.JsonArray
 import kotlinx.serialization.json.JsonObject
 import kotlinx.serialization.json.boolean
 import kotlinx.serialization.json.content
+import okhttp3.*
 import ru.noties.markwon.Markwon
+import xyz.quaver.hitomi.GalleryBlock
+import xyz.quaver.hitomi.Reader
+import xyz.quaver.hitomi.getGalleryBlock
+import xyz.quaver.hitomi.getReader
+import xyz.quaver.proxy
+import xyz.quaver.pupil.BroadcastReciever
 import xyz.quaver.pupil.BuildConfig
 import xyz.quaver.pupil.R
+import xyz.quaver.pupil.util.download.Cache
+import xyz.quaver.pupil.util.download.Metadata
 import java.io.File
+import java.io.IOException
 import java.net.URL
 import java.util.*
+import java.util.concurrent.TimeUnit
 
 fun getReleases(url: String) : JsonArray {
     return try {
@@ -81,7 +90,7 @@ fun getApkUrl(releases: JsonObject) : String? {
 }
 
 const val UPDATE_NOTIFICATION_ID = 384823
-fun checkUpdate(context: AppCompatActivity, force: Boolean = false) {
+fun checkUpdate(context: Context, force: Boolean = false) {
 
     val preferences = PreferenceManager.getDefaultSharedPreferences(context)
     val ignoreUpdateUntil = preferences.getLong("ignore_update_until", 0)
@@ -143,56 +152,27 @@ fun checkUpdate(context: AppCompatActivity, force: Boolean = false) {
             setMessage(Markwon.create(context).toMarkdown(msg))
             setPositiveButton(android.R.string.yes) { _, _ ->
 
-                val notificationManager = NotificationManagerCompat.from(context)
-                val builder = NotificationCompat.Builder(context, "download").apply {
-                    setContentTitle(context.getString(R.string.update_notification_description))
-                    setSmallIcon(android.R.drawable.stat_sys_download)
-                    priority = NotificationCompat.PRIORITY_LOW
-                    setOngoing(true)
+                val preference = PreferenceManager.getDefaultSharedPreferences(context)
+
+                val downloadManager = context.getSystemService(Context.DOWNLOAD_SERVICE) as DownloadManager
+
+                //Cancel any download queued before
+
+                val id = preference.getLong("update_download_id", -1)
+
+                if (id != -1L)
+                    downloadManager.remove(id)
+
+                val target = File(context.getExternalFilesDir(null), "Pupil.apk").also {
+                    it.delete()
                 }
 
-                CoroutineScope(Dispatchers.IO).launch io@{
-                    val target = File(getDownloadDirectory(context), "Pupil.apk")
+                val request = DownloadManager.Request(Uri.parse(url))
+                    .setTitle(context.getText(R.string.update_notification_description))
+                    .setDestinationUri(Uri.fromFile(target))
 
-                    try {
-                        URL(url).download(target) { progress, fileSize ->
-                            builder.setProgress(fileSize.toInt(), progress.toInt(), false)
-                            notificationManager.notify(UPDATE_NOTIFICATION_ID, builder.build())
-                        }
-                    } catch (e: Exception) {
-                        builder.apply {
-                            setContentText(context.getString(R.string.update_failed))
-                            setMessage(context.getString(R.string.update_failed_message))
-                            setSmallIcon(android.R.drawable.stat_sys_download_done)
-                            setOngoing(false)
-                        }
-
-                        notificationManager.cancel(UPDATE_NOTIFICATION_ID)
-                        notificationManager.notify(UPDATE_NOTIFICATION_ID, builder.build())
-
-                        return@io
-                    }
-
-                    val install = Intent(Intent.ACTION_VIEW).apply {
-                        flags = Intent.FLAG_ACTIVITY_CLEAR_TOP or Intent.FLAG_GRANT_READ_URI_PERMISSION
-                        setDataAndType(FileProvider.getUriForFile(context, context.applicationContext.packageName + ".provider", target), MimeTypeMap.getSingleton().getMimeTypeFromExtension("apk"))
-                    }
-
-                    builder.apply {
-                        setContentIntent(PendingIntent.getActivity(context, 0, install, 0))
-                        setProgress(0, 0, false)
-                        setSmallIcon(android.R.drawable.stat_sys_download_done)
-                        setContentTitle(context.getString(R.string.update_download_completed))
-                        setContentText(context.getString(R.string.update_download_completed_description))
-                        setOngoing(false)
-                    }
-
-                    notificationManager.cancel(UPDATE_NOTIFICATION_ID)
-
-                    if (context.lifecycle.currentState.isAtLeast(Lifecycle.State.RESUMED))
-                        context.startActivity(install)
-                    else
-                        notificationManager.notify(UPDATE_NOTIFICATION_ID, builder.build())
+                downloadManager.enqueue(request).also {
+                    preference.edit().putLong("update_download_id", it).apply()
                 }
             }
             setNegativeButton(if (force) android.R.string.no else R.string.ignore_update) { _, _ ->
@@ -207,4 +187,149 @@ fun checkUpdate(context: AppCompatActivity, force: Boolean = false) {
             dialog.show()
         }
     }
+}
+
+var cancelImport = false
+@SuppressLint("RestrictedApi")
+fun importOldGalleries(context: Context, folder: File) = CoroutineScope(Dispatchers.IO).launch {
+    val client = OkHttpClient.Builder()
+        .connectTimeout(0, TimeUnit.SECONDS)
+        .readTimeout(0, TimeUnit.SECONDS)
+        .proxy(proxy)
+        .build()
+
+    val cancelIntent = Intent(context, BroadcastReciever::class.java).apply {
+        action = BroadcastReciever.ACTION_CANCEL_IMPORT
+        putExtra(BroadcastReciever.EXTRA_IMPORT_NOTIFICATION_ID, 0)
+    }
+    val pendingIntent = PendingIntent.getBroadcast(context, 0, cancelIntent, 0)
+
+    val notificationManager = NotificationManagerCompat.from(context)
+    val notificationBuilder = NotificationCompat.Builder(context, "import").apply {
+        setContentTitle(context.getText(R.string.import_old_galleries_notification))
+        setProgress(0, 0, true)
+        setSmallIcon(R.drawable.ic_notification)
+        addAction(0, context.getText(android.R.string.cancel), pendingIntent)
+        setOngoing(true)
+    }
+
+    notificationManager.notify(0, notificationBuilder.build())
+
+    if (!folder.isDirectory)
+        return@launch
+
+    val galleryRegex = Regex("""[0-9]+$""")
+    val imageRegex = Regex("""^[0-9]+\..+$""")
+    var size = 0
+    fun setProgress(progress: Int) {
+        notificationBuilder.apply {
+            setContentText(
+                context.getString(
+                    R.string.import_old_galleries_notification_text,
+                    progress,
+                    size
+                )
+            )
+            setProgress(size, progress, false)
+        }
+
+        notificationManager.notify(0, notificationBuilder.build())
+    }
+
+    folder.listFiles { _, name ->
+        galleryRegex.matches(name)
+    }?.also {
+        size = it.size
+        setProgress(0)
+    }?.forEachIndexed { index, gallery ->
+        if (cancelImport)
+            return@forEachIndexed
+
+        setProgress(index)
+
+        val galleryID = gallery.name.toIntOrNull() ?: return@forEachIndexed
+
+        File(getDownloadDirectory(context), galleryID.toString()).mkdirs()
+
+        val reader = async {
+            kotlin.runCatching {
+                json.parse(Reader.serializer(), File(gallery, "reader.json").readText())
+            }.getOrElse {
+                getReader(galleryID)
+            }
+        }
+        val galleryBlock = async {
+            kotlin.runCatching {
+                json.parse(GalleryBlock.serializer(), File(gallery, "galleryBlock.json").readText())
+            }.getOrElse {
+                getGalleryBlock(galleryID)
+            }
+        }
+        @Suppress("NAME_SHADOWING")
+        val thumbnail = async thumbnail@{
+            val galleryBlock = galleryBlock.await()
+
+            Base64.encodeToString(try {
+                File(gallery, "thumbnail.jpg").readBytes()
+            } catch (e: Exception) {
+                val url = galleryBlock?.thumbnails?.firstOrNull()
+
+                if (url == null)
+                    null
+                else {
+                    val request = Request.Builder().url(url).build()
+
+                    var done = false
+                    var result: ByteArray? = null
+                    client.newCall(request).enqueue(object : Callback {
+                        override fun onFailure(call: Call?, e: IOException?) {
+                            done = true
+                        }
+
+                        override fun onResponse(call: Call?, response: Response?) {
+                            result = response?.body()?.use {
+                                it.bytes()
+                            }
+                            done = true
+                        }
+                    })
+
+                    if (!done)
+                        yield()
+
+                    result
+                }
+            } ?: return@thumbnail null, Base64.DEFAULT)
+        }
+
+        Cache(context).setCachedMetadata(galleryID,
+            Metadata(
+                thumbnail.await(),
+                galleryBlock.await(),
+                reader.await()
+            )
+        )
+
+        File(gallery, "images").listFiles { _, name ->
+            imageRegex.matches(name)
+        }?.forEach {
+            if (cancelImport)
+                return@forEach
+
+            @Suppress("NAME_SHADOWING")
+            val index = it.nameWithoutExtension.toIntOrNull() ?: return@forEach
+
+            Cache(context).putImage(galleryID, index, it.extension, it.inputStream())
+        }
+    }
+
+    notificationBuilder.apply {
+        setContentText(context.getText(R.string.import_old_galleries_notification_done))
+        setProgress(0, 0, false)
+        setOngoing(false)
+        mActions.clear()
+    }
+    notificationManager.notify(0, notificationBuilder.build())
+
+    cancelImport = false
 }

app/src/main/res/anim/shake.xml

@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~     Pupil, Hitomi.la viewer for Android
+  ~     Copyright (C) 2020  tom5079
+  ~
+  ~     This program is free software: you can redistribute it and/or modify
+  ~     it under the terms of the GNU General Public License as published by
+  ~     the Free Software Foundation, either version 3 of the License, or
+  ~     (at your option) any later version.
+  ~
+  ~     This program is distributed in the hope that it will be useful,
+  ~     but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  ~     GNU General Public License for more details.
+  ~
+  ~     You should have received a copy of the GNU General Public License
+  ~     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+  -->
+
+<translate xmlns:android="http://schemas.android.com/apk/res/android"
+    android:duration="300"
+    android:fromXDelta="0"
+    android:interpolator="@anim/shake_cycle"
+    android:toXDelta="10" />

app/src/main/res/anim/shake_cycle.xml

@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~     Pupil, Hitomi.la viewer for Android
+  ~     Copyright (C) 2020  tom5079
+  ~
+  ~     This program is free software: you can redistribute it and/or modify
+  ~     it under the terms of the GNU General Public License as published by
+  ~     the Free Software Foundation, either version 3 of the License, or
+  ~     (at your option) any later version.
+  ~
+  ~     This program is distributed in the hope that it will be useful,
+  ~     but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  ~     GNU General Public License for more details.
+  ~
+  ~     You should have received a copy of the GNU General Public License
+  ~     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+  -->
+
+<cycleInterpolator xmlns:android="http://schemas.android.com/apk/res/android"
+    android:cycles="3" />

app/src/main/res/color/lock_fab.xml

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~     Pupil, Hitomi.la viewer for Android
+  ~     Copyright (C) 2020  tom5079
+  ~
+  ~     This program is free software: you can redistribute it and/or modify
+  ~     it under the terms of the GNU General Public License as published by
+  ~     the Free Software Foundation, either version 3 of the License, or
+  ~     (at your option) any later version.
+  ~
+  ~     This program is distributed in the hope that it will be useful,
+  ~     but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  ~     GNU General Public License for more details.
+  ~
+  ~     You should have received a copy of the GNU General Public License
+  ~     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+  -->
+
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:state_enabled="false" android:color="@android:color/darker_gray"/>
+    <item android:color="@color/colorPrimary"/>
+</selector>

app/src/main/res/drawable/account_group.xml

@@ -0,0 +1,8 @@
+<!-- drawable/account_group.xml -->
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:height="24dp"
+    android:width="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path android:fillColor="?attr/colorControlNormal" android:pathData="M12,5.5A3.5,3.5 0 0,1 15.5,9A3.5,3.5 0 0,1 12,12.5A3.5,3.5 0 0,1 8.5,9A3.5,3.5 0 0,1 12,5.5M5,8C5.56,8 6.08,8.15 6.53,8.42C6.38,9.85 6.8,11.27 7.66,12.38C7.16,13.34 6.16,14 5,14A3,3 0 0,1 2,11A3,3 0 0,1 5,8M19,8A3,3 0 0,1 22,11A3,3 0 0,1 19,14C17.84,14 16.84,13.34 16.34,12.38C17.2,11.27 17.62,9.85 17.47,8.42C17.92,8.15 18.44,8 19,8M5.5,18.25C5.5,16.18 8.41,14.5 12,14.5C15.59,14.5 18.5,16.18 18.5,18.25V20H5.5V18.25M0,20V18.5C0,17.11 1.89,15.94 4.45,15.6C3.86,16.28 3.5,17.22 3.5,18.25V20H0M24,20H20.5V18.25C20.5,17.22 20.14,16.28 19.55,15.6C22.11,15.94 24,17.11 24,18.5V20Z" />
+</vector>

app/src/main/res/drawable/account_star.xml

@@ -0,0 +1,8 @@
+<!-- drawable/account_star.xml -->
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:height="24dp"
+    android:width="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path android:fillColor="?attr/colorControlNormal" android:pathData="M15,14C12.33,14 7,15.33 7,18V20H23V18C23,15.33 17.67,14 15,14M15,12A4,4 0 0,0 19,8A4,4 0 0,0 15,4A4,4 0 0,0 11,8A4,4 0 0,0 15,12M5,13.28L7.45,14.77L6.8,11.96L9,10.08L6.11,9.83L5,7.19L3.87,9.83L1,10.08L3.18,11.96L2.5,14.77L5,13.28Z" />
+</vector>

app/src/main/res/drawable/backspace_outline.xml

@@ -0,0 +1,8 @@
+<!-- drawable/backspace_outline.xml -->
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:height="24dp"
+    android:width="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path android:fillColor="#000" android:pathData="M19,15.59L17.59,17L14,13.41L10.41,17L9,15.59L12.59,12L9,8.41L10.41,7L14,10.59L17.59,7L19,8.41L15.41,12L19,15.59M22,3A2,2 0 0,1 24,5V19A2,2 0 0,1 22,21H7C6.31,21 5.77,20.64 5.41,20.11L0,12L5.41,3.88C5.77,3.35 6.31,3 7,3H22M22,5H7L2.28,12L7,19H22V5Z" />
+</vector>

app/src/main/res/drawable/book_open.xml

@@ -0,0 +1,8 @@
+<!-- drawable/book_open.xml -->
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:height="24dp"
+    android:width="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path android:fillColor="?attr/colorControlNormal" android:pathData="M13,12H20V13.5H13M13,9.5H20V11H13M13,14.5H20V16H13M21,4H3A2,2 0 0,0 1,6V19A2,2 0 0,0 3,21H21A2,2 0 0,0 23,19V6A2,2 0 0,0 21,4M21,19H12V6H21" />
+</vector>

app/src/main/res/drawable/brush.xml

@@ -0,0 +1,8 @@
+<!-- drawable/brush.xml -->
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:height="24dp"
+    android:width="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path android:fillColor="?attr/colorControlNormal" android:pathData="M20.71,4.63L19.37,3.29C19,2.9 18.35,2.9 17.96,3.29L9,12.25L11.75,15L20.71,6.04C21.1,5.65 21.1,5 20.71,4.63M7,14A3,3 0 0,0 4,17C4,18.31 2.84,19 2,19C2.92,20.22 4.5,21 6,21A4,4 0 0,0 10,17A3,3 0 0,0 7,14Z" />
+</vector>