Allow opening .tachibk files directly with app to restore

app/src/main/AndroidManifest.xml

@@ -59,6 +59,33 @@
                 <action android:name="android.intent.action.MAIN" />
                 <category android:name="android.intent.category.LAUNCHER" />
             </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:scheme="file" />
+                <data android:scheme="content" />
+                <data android:host="*" />
+                <data android:mimeType="*/*" />
+
+                <!--
+                Work around Android's ugly primitive PatternMatcher
+                implementation that can't cope with finding a . early in
+                the path unless it's explicitly matched.
+
+                See https://stackoverflow.com/a/31028507
+                -->
+                <data android:pathPattern=".*\\.tachibk" />
+                <data android:pathPattern=".*\\..*\\.tachibk" />
+                <data android:pathPattern=".*\\..*\\..*\\.tachibk" />
+                <data android:pathPattern=".*\\..*\\..*\\..*\\.tachibk" />
+                <data android:pathPattern=".*\\..*\\..*\\..*\\..*\\.tachibk" />
+                <data android:pathPattern=".*\\..*\\..*\\..*\\..*\\..*\\.tachibk" />
+                <data android:pathPattern=".*\\..*\\..*\\..*\\..*\\..*\\..*\\.tachibk" />
+            </intent-filter>
+
             <!--suppress AndroidDomInspection -->
             <meta-data
                 android:name="android.app.shortcuts"

app/src/main/java/eu/kanade/tachiyomi/ui/main/MainActivity.kt

@@ -56,6 +56,7 @@ import eu.kanade.presentation.components.AppStateBanners
 import eu.kanade.presentation.components.DownloadedOnlyBannerBackgroundColor
 import eu.kanade.presentation.components.IncognitoModeBannerBackgroundColor
 import eu.kanade.presentation.components.IndexingBannerBackgroundColor
+import eu.kanade.presentation.more.settings.screen.data.RestoreBackupScreen
 import eu.kanade.presentation.util.AssistContentScreen
 import eu.kanade.presentation.util.DefaultNavigatorScreenTransition
 import eu.kanade.tachiyomi.BuildConfig
@@ -444,6 +445,13 @@ class MainActivity : BaseActivity() {
                 }
                 null
             }
+            Intent.ACTION_VIEW -> {
+                if (intent.data.toString().endsWith(".tachibk")) {
+                    navigator.popUntilRoot()
+                    navigator.push(RestoreBackupScreen(intent.data.toString()))
+                }
+                null
+            }
             else -> return false
         }