Issue mozilla-mobile#10140 - Part 2: Make a copy of GeckoLoginDelegat…

…eWrapper as GeckoStorageDelegateWrapper

We make a copy of GeckoLoginDelegateWrapper to not break the deprecated usage of `Autocomplete.LoginStorageDelegate`
until we are ready to replace with `GeckoStorageDelegateWrapper` which will use the new GV API `Autocomplete.StorageDelegate`.

components/browser/engine-gecko/src/main/java/mozilla/components/browser/engine/gecko/autofill/GeckoStorageDelegateWrapper.kt

@@ -0,0 +1,46 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+package mozilla.components.browser.engine.gecko.autofill
+
+import kotlinx.coroutines.Dispatchers.IO
+import kotlinx.coroutines.GlobalScope
+import kotlinx.coroutines.launch
+import mozilla.components.browser.engine.gecko.ext.toLogin
+import mozilla.components.browser.engine.gecko.ext.toLoginEntry
+import mozilla.components.concept.storage.Login
+import mozilla.components.concept.storage.LoginStorageDelegate
+import org.mozilla.geckoview.Autocomplete
+import org.mozilla.geckoview.GeckoResult
+
+/**
+ * This class exists only to convert incoming [LoginEntry] arguments into [Login]s, then forward
+ * them to [storageDelegate]. This allows us to avoid duplicating [LoginStorageDelegate] code
+ * between different versions of GeckoView, by duplicating this wrapper instead.
+ */
+@Suppress("Deprecation")
+// This will be addressed in https://github.com/mozilla-mobile/android-components/issues/10093
+class GeckoLoginDelegateWrapper(private val storageDelegate: LoginStorageDelegate) :
+    Autocomplete.LoginStorageDelegate {
+
+    override fun onLoginSave(login: Autocomplete.LoginEntry) {
+        storageDelegate.onLoginSave(login.toLogin())
+    }
+
+    override fun onLoginFetch(domain: String): GeckoResult<Array<Autocomplete.LoginEntry>>? {
+        val result = GeckoResult<Array<Autocomplete.LoginEntry>>()
+
+        GlobalScope.launch(IO) {
+            val storedLogins = storageDelegate.onLoginFetch(domain)
+
+            val logins = storedLogins.await()
+                .map { it.toLoginEntry() }
+                .toTypedArray()
+
+            result.complete(logins)
+        }
+
+        return result
+    }
+}