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Code Issues Packages Projects Releases Wiki Activity

Make WebViewFragment work with predictive back

This commit is contained in:
Grishka 2024-06-13 17:08:24 +03:00
parent 04129920eb
commit 4e1bf80e12
1 changed files with 35 additions and 11 deletions
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46
mastodon/src/main/java/org/joinmastodon/android/fragments/WebViewFragment.java
View File

@ -1,6 +1,7 @@
package org.joinmastodon.android.fragments;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
@ -10,14 +11,18 @@ import android.webkit.WebResourceRequest;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import org.joinmastodon.android.BuildConfig;
import org.joinmastodon.android.api.MastodonErrorResponse;
import me.grishka.appkit.Nav;
import me.grishka.appkit.fragments.LoaderFragment;
import me.grishka.appkit.fragments.OnBackPressedListener;
public abstract class WebViewFragment extends LoaderFragment implements OnBackPressedListener{
public abstract class WebViewFragment extends LoaderFragment{
private static final String TAG="WebViewFragment";
protected WebView webView;
private Runnable backCallback=this::onGoBack;
private boolean backCallbackSet;
@Override
public View onCreateContentView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState){
@ -31,18 +36,28 @@ public abstract class WebViewFragment extends LoaderFragment implements OnBackPr
webView.setWebViewClient(new WebViewClient(){
@Override
public void onPageFinished(WebView view, String url){
if(BuildConfig.DEBUG){
Log.d(TAG, "onPageFinished: "+url);
}
dataLoaded();
updateBackCallback();
}
@Override
public void onReceivedError(WebView view, WebResourceRequest request, WebResourceError error){
onError(new MastodonErrorResponse(error.getDescription().toString(), -1, null));
updateBackCallback();
}
@Override
public boolean shouldOverrideUrlLoading(WebView view, WebResourceRequest request){
return WebViewFragment.this.shouldOverrideUrlLoading(request);
}
@Override
public void doUpdateVisitedHistory(WebView view, String url, boolean isReload){
updateBackCallback();
}
});
webView.getSettings().setJavaScriptEnabled(true);
return webView;
@ -58,19 +73,28 @@ public abstract class WebViewFragment extends LoaderFragment implements OnBackPr
webView.reload();
}
@Override
public boolean onBackPressed(){
if(webView.canGoBack()){
webView.goBack();
return true;
}
return false;
}
@Override
public void onToolbarNavigationClick(){
Nav.finish(this);
}
private void updateBackCallback(){
boolean canGoBack=webView.canGoBack();
if(canGoBack!=backCallbackSet){
if(canGoBack){
addBackCallback(backCallback);
backCallbackSet=true;
}else{
removeBackCallback(backCallback);
backCallbackSet=false;
}
}
}
private void onGoBack(){
if(webView.canGoBack())
webView.goBack();
}
protected abstract boolean shouldOverrideUrlLoading(WebResourceRequest req);
}