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69 lines
2.4 KiB
Kotlin
69 lines
2.4 KiB
Kotlin
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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package org.mozilla.fenix.components.search
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import android.content.Context
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import android.content.SharedPreferences
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import mozilla.components.browser.state.search.SearchEngine
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import mozilla.components.feature.search.ext.parseLegacySearchEngine
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import mozilla.components.feature.search.middleware.SearchMiddleware
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import org.mozilla.fenix.ext.components
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import org.xmlpull.v1.XmlPullParserException
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import java.io.BufferedInputStream
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import java.io.IOException
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private const val PREF_FILE_SEARCH_ENGINES = "custom-search-engines"
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private const val PREF_KEY_CUSTOM_SEARCH_ENGINES = "pref_custom_search_engines"
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private const val PREF_KEY_MIGRATED = "pref_search_migrated"
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/**
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* Helper class to migrate the search related data in Fenix to the "Android Components" implementation.
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*/
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internal class SearchMigration(
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private val context: Context
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) : SearchMiddleware.Migration {
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override fun getValuesToMigrate(): SearchMiddleware.Migration.MigrationValues? {
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val preferences = context.getSharedPreferences(PREF_FILE_SEARCH_ENGINES, Context.MODE_PRIVATE)
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if (preferences.getBoolean(PREF_KEY_MIGRATED, false)) {
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return null
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}
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val values = SearchMiddleware.Migration.MigrationValues(
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customSearchEngines = loadCustomSearchEngines(preferences),
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defaultSearchEngineName = context.components.settings.defaultSearchEngineName
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)
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preferences.edit()
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.putBoolean(PREF_KEY_MIGRATED, true)
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.apply()
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return values
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}
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private fun loadCustomSearchEngines(
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preferences: SharedPreferences
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): List<SearchEngine> {
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val ids = preferences.getStringSet(PREF_KEY_CUSTOM_SEARCH_ENGINES, emptySet()) ?: emptySet()
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return ids.mapNotNull { id ->
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val xml = preferences.getString(id, null)
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loadSafely(id, xml?.byteInputStream()?.buffered())
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}
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}
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}
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@Suppress("DEPRECATION")
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private fun loadSafely(id: String, stream: BufferedInputStream?): SearchEngine? {
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return try {
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stream?.let { parseLegacySearchEngine(id, it) }
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} catch (e: IOException) {
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null
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} catch (e: XmlPullParserException) {
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null
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}
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}
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