Allow deep linking to add external repo

(cherry picked from commit f115edf2eac125d0e6a0fdec79bd9d6627c3c53b)

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

app/src/main/java/eu/kanade/presentation/more/settings/screen/browse/ExtensionReposScreen.kt

@@ -16,16 +16,22 @@ import eu.kanade.tachiyomi.util.system.toast
 import kotlinx.coroutines.flow.collectLatest
 import tachiyomi.presentation.core.screens.LoadingScreen
 
-class ExtensionReposScreen : Screen() {
+class ExtensionReposScreen(
+    private val url: String? = null,
+) : Screen() {
 
     @Composable
     override fun Content() {
         val context = LocalContext.current
         val navigator = LocalNavigator.currentOrThrow
-        val screenModel = rememberScreenModel { ExtensionReposScreenModel() }
 
+        val screenModel = rememberScreenModel { ExtensionReposScreenModel() }
         val state by screenModel.state.collectAsState()
 
+        LaunchedEffect(url) {
+            url?.let { screenModel.createRepo(it) }
+        }
+
         if (state is RepoScreenState.Loading) {
             LoadingScreen()
             return

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

@@ -58,6 +58,7 @@ import eu.kanade.presentation.components.IncognitoModeBannerBackgroundColor
 import eu.kanade.presentation.components.IndexingBannerBackgroundColor
 import eu.kanade.presentation.more.settings.screen.ConfigureExhDialog
 import eu.kanade.presentation.more.settings.screen.about.WhatsNewDialog
+import eu.kanade.presentation.more.settings.screen.browse.ExtensionReposScreen
 import eu.kanade.presentation.more.settings.screen.data.RestoreBackupScreen
 import eu.kanade.presentation.util.AssistContentScreen
 import eu.kanade.presentation.util.DefaultNavigatorScreenTransition
@@ -511,10 +512,18 @@ class MainActivity : BaseActivity() {
                 null
             }
             Intent.ACTION_VIEW -> {
+                // Handling opening of backup files
                 if (intent.data.toString().endsWith(".tachibk")) {
                     navigator.popUntilRoot()
                     navigator.push(RestoreBackupScreen(intent.data.toString()))
                 }
+                // Deep link to add extension repo
+                else if (intent.scheme == "tachiyomi" && intent.data?.host == "add-repo") {
+                    intent.data?.getQueryParameter("url")?.let { repoUrl ->
+                        navigator.popUntilRoot()
+                        navigator.push(ExtensionReposScreen(repoUrl))
+                    }
+                }
                 null
             }
             else -> return false