Switch to AndroidX Webkit library

app/build.gradle

@@ -116,6 +116,7 @@ dependencies {
     implementation 'androidx.annotation:annotation:1.1.0'
     implementation 'androidx.browser:browser:1.2.0'
     implementation 'androidx.multidex:multidex:2.0.1'
+    implementation 'androidx.webkit:webkit:1.1.0'
 
     // UI library
     implementation 'com.google.android.material:material:1.1.0'

app/src/main/java/eu/kanade/tachiyomi/network/CloudflareInterceptor.kt

@@ -5,11 +5,15 @@ import android.content.Context
 import android.os.Build
 import android.os.Handler
 import android.os.Looper
+import android.webkit.WebResourceRequest
+import android.webkit.WebResourceResponse
 import android.webkit.WebSettings
 import android.webkit.WebView
 import android.widget.Toast
+import androidx.webkit.WebResourceErrorCompat
+import androidx.webkit.WebViewClientCompat
+import androidx.webkit.WebViewFeature
 import eu.kanade.tachiyomi.R
-import eu.kanade.tachiyomi.util.system.WebViewClientCompat
 import eu.kanade.tachiyomi.util.system.isOutdated
 import eu.kanade.tachiyomi.util.system.toast
 import okhttp3.Cookie
@@ -97,8 +101,9 @@ class CloudflareInterceptor(private val context: Context) : Interceptor {
                         cloudflareBypassed = true
                         latch.countDown()
                     }
-                    // Http error codes are only received since M
-                    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M &&
+
+                    // HTTP error codes are only received since M
+                    if (WebViewFeature.isFeatureSupported(WebViewFeature.RECEIVE_WEB_RESOURCE_ERROR) &&
                         url == origRequestUrl && !challengeFound
                     ) {
                         // The first request didn't return the challenge, abort.
@@ -106,16 +111,31 @@ class CloudflareInterceptor(private val context: Context) : Interceptor {
                     }
                 }
 
-                override fun onReceivedErrorCompat(
+                override fun onReceivedHttpError(
+                        view: WebView,
+                        request: WebResourceRequest,
+                        errorResponse: WebResourceResponse
+                ) {
+                    if (request.isForMainFrame) {
+                        if (errorResponse.statusCode == 503) {
+                            // Found the Cloudflare challenge page.
+                            challengeFound = true
+                        } else {
+                            // Unlock thread, the challenge wasn't found.
+                            latch.countDown()
+                        }
+                    }
+                }
+
+                @SuppressLint("RequiresFeature")
+                override fun onReceivedError(
                         view: WebView,
-                        errorCode: Int,
-                        description: String?,
-                        failingUrl: String,
-                        isMainFrame: Boolean
+                        request: WebResourceRequest,
+                        error: WebResourceErrorCompat
                 ) {
-                    if (isMainFrame) {
-                        if (errorCode == 503) {
-                            // Found the cloudflare challenge page.
+                    if (request.isForMainFrame) {
+                        if (error.errorCode == 503) {
+                            // Found the Cloudflare challenge page.
                             challengeFound = true
                         } else {
                             // Unlock thread, the challenge wasn't found.

app/src/main/java/eu/kanade/tachiyomi/ui/webview/WebViewActivity.kt

@@ -9,13 +9,14 @@ import android.os.Bundle
 import android.view.Menu
 import android.view.MenuItem
 import android.webkit.WebChromeClient
+import android.webkit.WebResourceRequest
 import android.webkit.WebView
 import androidx.core.graphics.ColorUtils
+import androidx.webkit.WebViewClientCompat
 import eu.kanade.tachiyomi.R
 import eu.kanade.tachiyomi.source.SourceManager
 import eu.kanade.tachiyomi.source.online.HttpSource
 import eu.kanade.tachiyomi.ui.base.activity.BaseActivity
-import eu.kanade.tachiyomi.util.system.WebViewClientCompat
 import eu.kanade.tachiyomi.util.system.getResourceColor
 import eu.kanade.tachiyomi.util.system.openInBrowser
 import eu.kanade.tachiyomi.util.system.toast
@@ -71,8 +72,8 @@ class WebViewActivity : BaseActivity() {
             }
 
             webview.webViewClient = object : WebViewClientCompat() {
-                override fun shouldOverrideUrlCompat(view: WebView, url: String): Boolean {
-                    view.loadUrl(url)
+                override fun shouldOverrideUrlLoading(view: WebView, request: WebResourceRequest): Boolean {
+                    view.loadUrl(request.url.toString())
                     return true
                 }
 
@@ -89,7 +90,7 @@ class WebViewActivity : BaseActivity() {
                     invalidateOptionsMenu()
                 }
 
-                override fun onPageCommitVisible(view: WebView?, url: String?) {
+                override fun onPageCommitVisible(view: WebView, url: String) {
                     super.onPageCommitVisible(view, url)
 
                     // Reset to top when page refreshes

app/src/main/java/eu/kanade/tachiyomi/util/system/WebViewClientCompat.kt

@@ -1,82 +0,0 @@
-package eu.kanade.tachiyomi.util.system
-
-import android.annotation.TargetApi
-import android.os.Build
-import android.webkit.*
-
-@Suppress("OverridingDeprecatedMember")
-abstract class WebViewClientCompat : WebViewClient() {
-
-    open fun shouldOverrideUrlCompat(view: WebView, url: String): Boolean {
-        return false
-    }
-
-    open fun shouldInterceptRequestCompat(view: WebView, url: String): WebResourceResponse? {
-        return null
-    }
-
-    open fun onReceivedErrorCompat(
-            view: WebView,
-            errorCode: Int,
-            description: String?,
-            failingUrl: String,
-            isMainFrame: Boolean) {
-
-    }
-
-    @TargetApi(Build.VERSION_CODES.N)
-    final override fun shouldOverrideUrlLoading(
-            view: WebView,
-            request: WebResourceRequest
-    ): Boolean {
-        return shouldOverrideUrlCompat(view, request.url.toString())
-    }
-
-    final override fun shouldOverrideUrlLoading(view: WebView, url: String): Boolean {
-        return shouldOverrideUrlCompat(view, url)
-    }
-
-    final override fun shouldInterceptRequest(
-            view: WebView,
-            request: WebResourceRequest
-    ): WebResourceResponse? {
-        return shouldInterceptRequestCompat(view, request.url.toString())
-    }
-
-    final override fun shouldInterceptRequest(
-            view: WebView,
-            url: String
-    ): WebResourceResponse? {
-        return shouldInterceptRequestCompat(view, url)
-    }
-
-    @TargetApi(Build.VERSION_CODES.M)
-    final override fun onReceivedError(
-            view: WebView,
-            request: WebResourceRequest,
-            error: WebResourceError
-    ) {
-        onReceivedErrorCompat(view, error.errorCode, error.description?.toString(),
-                request.url.toString(), request.isForMainFrame)
-    }
-
-    final override fun onReceivedError(
-            view: WebView,
-            errorCode: Int,
-            description: String?,
-            failingUrl: String
-    ) {
-        onReceivedErrorCompat(view, errorCode, description, failingUrl, failingUrl == view.url)
-    }
-
-    @TargetApi(Build.VERSION_CODES.M)
-    final override fun onReceivedHttpError(
-            view: WebView,
-            request: WebResourceRequest,
-            error: WebResourceResponse
-    ) {
-        onReceivedErrorCompat(view, error.statusCode, error.reasonPhrase, request.url
-            .toString(), request.isForMainFrame)
-    }
-
-}