for security reasons, clicking the external links in the on the Help screen no longer opens website directly, but instead triggers the share URL dialog

app/src/main/java/io/github/sspanak/tt9/ui/WebViewActivity.java

@@ -10,7 +10,7 @@ import androidx.annotation.Nullable;
 import androidx.appcompat.app.ActionBar;
 
 abstract public class WebViewActivity extends EdgeToEdgeActivity implements View.OnAttachStateChangeListener {
-	private WebView container;
+	private WebView webView;
 
 	@Override
 	protected void onCreate(@Nullable Bundle savedInstanceState) {
@@ -28,7 +28,7 @@ abstract public class WebViewActivity extends EdgeToEdgeActivity implements View
 
 	@Override
 	protected void onDestroy() {
-		container.removeOnAttachStateChangeListener(this);
+		webView.removeOnAttachStateChangeListener(this);
 		super.onDestroy();
 	}
 
@@ -52,8 +52,9 @@ abstract public class WebViewActivity extends EdgeToEdgeActivity implements View
 	}
 
 	private void setContent() {
-		container = new WebView(this);
-		container.addOnAttachStateChangeListener(this);
+		webView = new WebView(this);
+		webView.addOnAttachStateChangeListener(this);
+		webView.setWebViewClient(new WebViewSafeClient(this));
 
 		// On API > 30 the WebView does not load the entire String with .loadData(),
 		// so we need to do this weird shit.
@@ -61,9 +62,9 @@ abstract public class WebViewActivity extends EdgeToEdgeActivity implements View
 		// Reference: https://developer.android.com/develop/ui/views/layout/webapps/webview
 		String text = getText();
 		String encodedHtml = "app:" + Base64.encodeToString(text.getBytes(), Base64.NO_PADDING);
-		container.loadDataWithBaseURL(encodedHtml, text, getMimeType(), "UTF-8", null);
+		webView.loadDataWithBaseURL(encodedHtml, text, getMimeType(), "UTF-8", null);
 
-		setContentView(container);
+		setContentView(webView);
 	}
 
 	abstract protected String getText();

app/src/main/java/io/github/sspanak/tt9/ui/WebViewSafeClient.java

@@ -0,0 +1,52 @@
+package io.github.sspanak.tt9.ui;
+
+import android.app.Activity;
+import android.content.Intent;
+import android.os.Build;
+import android.webkit.WebView;
+import android.webkit.WebViewClient;
+
+import androidx.annotation.NonNull;
+
+import io.github.sspanak.tt9.R;
+import io.github.sspanak.tt9.util.Clipboard;
+import io.github.sspanak.tt9.util.Logger;
+
+public class WebViewSafeClient extends WebViewClient {
+	private final Activity activity;
+
+	public WebViewSafeClient(@NonNull Activity activity) {
+		super();
+		this.activity = activity;
+	}
+
+	@Override
+	public boolean shouldOverrideUrlLoading(WebView view, String url) {
+		if (!url.startsWith("http")) {
+			return super.shouldOverrideUrlLoading(view, url);
+		}
+
+		if (Build.VERSION.SDK_INT < Build.VERSION_CODES.Q || !shareLink(url)) {
+			Clipboard.copy(activity, url);
+			if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.S_V2) {
+				UI.toastShortSingle(activity, R.string.help_url_copied);
+			}
+		}
+
+		return true;
+	}
+
+	private boolean shareLink(String url) {
+		Intent intent = new Intent(Intent.ACTION_SEND);
+		intent.setType("text/plain");
+		intent.putExtra(Intent.EXTRA_TEXT, url);
+
+		try {
+			activity.startActivity(Intent.createChooser(intent, "Share URL"));
+			return true;
+		} catch (Exception e) {
+			Logger.d(getClass().getSimpleName(), "Failed sharing URL: '" + url + "'. " + e.getMessage());
+			return false;
+		}
+	}
+}

app/src/main/res/values-bg/strings.xml

@@ -169,6 +169,7 @@
 	<string name="dictionary_import_custom_words_summary">Импортиране на думи от по-рано експортирано CSV.</string>
 	<string name="dictionary_import_progress">Импортиране на CSV (%1$s)…</string>
 	<string name="dictionary_import_running">Импортиране на CSV…</string>
+	<string name="help_url_copied">Връзката е копирана.</string>
 	<string name="language_selection_language_loaded">(зареден)</string>
 	<string name="language_selection_title">Избор на езици</string>
 	<string name="language_selection_search_placeholder">Търси езици</string>

app/src/main/res/values-de/strings.xml

@@ -157,6 +157,7 @@
 	<string name="dictionary_import_custom_words_summary">Wörter aus einer zuvor exportierten CSV-Datei importieren.</string>
 	<string name="dictionary_import_progress">CSV importieren (%1$s)…</string>
 	<string name="dictionary_import_running">CSV importieren…</string>
+	<string name="help_url_copied">Der Link ist kopiert.</string>
 	<string name="language_selection_language_loaded">(geladen)</string>
 	<string name="language_selection_title">Sprachen aktivieren</string>
 	<string name="language_selection_search_placeholder">Nach Sprachen suchen</string>

app/src/main/res/values-es/strings.xml

@@ -167,6 +167,7 @@
 	<string name="dictionary_import_custom_words_summary">Importar palabras de un CSV previamente exportado.</string>
 	<string name="dictionary_import_progress">Importando CSV (%1$s)…</string>
 	<string name="dictionary_import_running">Importando CSV…</string>
+	<string name="help_url_copied">El enlace ha sido copiado.</string>
 	<string name="language_selection_language_loaded">(cargado)</string>
 	<string name="language_selection_title">Habilitar idiomas</string>
 	<string name="language_selection_search_placeholder">Buscar idiomas</string>

app/src/main/res/values-fr/strings.xml

@@ -165,6 +165,7 @@
 	<string name="dictionary_import_custom_words_summary">Importer des mots à partir d\'un fichier CSV précédemment exporté.</string>
 	<string name="dictionary_import_progress">Importation de CSV (%1$s)…</string>
 	<string name="dictionary_import_running">Importation de CSV…</string>
+	<string name="help_url_copied">Le lien est copié.</string>
 	<string name="language_selection_language_loaded">(chargée)</string>
 	<string name="language_selection_title">Activer les langues</string>
 	<string name="language_selection_search_placeholder">Rechercher des langues</string>

app/src/main/res/values-it/strings.xml

@@ -157,6 +157,7 @@
 	<string name="dictionary_import_custom_words_summary">Importare parole da un CSV precedentemente esportato.</string>
 	<string name="dictionary_import_progress">Importazione CSV (%1$s)…</string>
 	<string name="dictionary_import_running">Importazione CSV…</string>
+	<string name="help_url_copied">Il link è copiato.</string>
 	<string name="language_selection_language_loaded">(caricata)</string>
 	<string name="language_selection_title">Abilita lingue</string>
 	<string name="language_selection_search_placeholder">Cerca lingue</string>

app/src/main/res/values-iw/strings.xml

@@ -170,6 +170,7 @@
 	<string name="dictionary_import_custom_words_summary">ייבוא מילים מקובץ CSV שיוצא קודם לכן.</string>
 	<string name="dictionary_import_progress">מייבא CSV (%1$s)…</string>
 	<string name="dictionary_import_running">מייבא CSV…</string>
+	<string name="help_url_copied">הקישור הועתק.</string>
 	<string name="language_selection_language_loaded">(נטען)</string>
 	<string name="language_selection_title">הפעל שפות</string>
 	<string name="language_selection_search_placeholder">חיפוש שפות</string>

app/src/main/res/values-lt/strings.xml

@@ -176,6 +176,7 @@
 	<string name="dictionary_import_custom_words_summary">Importuoti žodžius iš anksčiau eksportuoto CSV.</string>
 	<string name="dictionary_import_progress">Importuojamas CSV (%1$s)…</string>
 	<string name="dictionary_import_running">Importuojamas CSV…</string>
+	<string name="help_url_copied">Nuoroda nukopijuota.</string>
 	<string name="language_selection_language_loaded">(įkelta)</string>
 	<string name="language_selection_title">Įjungti kalbas</string>
 	<string name="language_selection_search_placeholder">Ieškoti kalbų</string>

app/src/main/res/values-nl/strings.xml

@@ -156,6 +156,7 @@
 	<string name="dictionary_import_custom_words_summary">Woorden importeren uit een eerder geëxporteerde CSV.</string>
 	<string name="dictionary_import_progress">CSV importeren (%1$s)…</string>
 	<string name="dictionary_import_running">CSV importeren…</string>
+	<string name="help_url_copied">Link is gekopieerd.</string>
 	<string name="language_selection_language_loaded">(geladen)</string>
 	<string name="language_selection_title">Talen inschakelen</string>
 	<string name="language_selection_search_placeholder">Zoeken naar talen</string>

app/src/main/res/values-pt-rBR/strings.xml

@@ -170,6 +170,7 @@
 	<string name="dictionary_import_custom_words_summary">Importar palavras de um CSV previamente exportado.</string>
 	<string name="dictionary_import_progress">Importando CSV (%1$s)…</string>
 	<string name="dictionary_import_running">Importando CSV…</string>
+	<string name="help_url_copied">O link foi copiado.</string>
 	<string name="language_selection_language_loaded">(carregado)</string>
 	<string name="language_selection_title">Habilitar idiomas</string>
 	<string name="language_selection_search_placeholder">Buscar por idiomas</string>

app/src/main/res/values-ru/strings.xml

@@ -167,6 +167,7 @@
 	<string name="dictionary_import_custom_words_summary">Импортировать слова из ранее экспортированного CSV.</string>
 	<string name="dictionary_import_progress">Импортирование CSV (%1$s)…</string>
 	<string name="dictionary_import_running">Импортирование CSV…</string>
+	<string name="help_url_copied">Ссылка скопирована.</string>
 	<string name="language_selection_language_loaded">(загружен)</string>
 	<string name="language_selection_title">Включить языки</string>
 	<string name="language_selection_search_placeholder">Поиск языков</string>

app/src/main/res/values-tr/strings.xml

@@ -170,6 +170,7 @@
 	<string name="dictionary_import_custom_words_summary">Daha önce dışa aktarılan bir CSV\'den kelimeleri içe aktar.</string>
 	<string name="dictionary_import_progress">CSV İçe aktarılıyor (%1$s)…</string>
 	<string name="dictionary_import_running">CSV İçe aktarılıyor…</string>
+	<string name="help_url_copied">Bağlantı kopyalandı.</string>
 	<string name="language_selection_language_loaded">(yüklendi)</string>
 	<string name="language_selection_title">Dilleri etkinleştir</string>
 	<string name="language_selection_search_placeholder">Diller için arama</string>

app/src/main/res/values-uk/strings.xml

@@ -178,6 +178,7 @@
 	<string name="dictionary_import_custom_words_summary">Імпортувати слова з раніше експортованого CSV.</string>
 	<string name="dictionary_import_progress">Імпорт CSV (%1$s)…</string>
 	<string name="dictionary_import_running">Імпорт CSV…</string>
+	<string name="help_url_copied">Посилання скопійовано.</string>
 	<string name="language_selection_language_loaded">(завантажено)</string>
 	<string name="language_selection_title">Увімкнути мови</string>
 	<string name="language_selection_search_placeholder">Пошук мов</string>

app/src/main/res/values/strings.xml

@@ -160,6 +160,8 @@
 	<string name="function_reset_keys_title">Restore Default Keys</string>
 	<string name="function_reset_keys_done">Default key settings restored.</string>
 
+	<string name="help_url_copied">URL copied.</string>
+
 	<string name="language_selection_language_loaded">(loaded)</string>
 	<string name="language_selection_title">Enable Languages</string>
 	<string name="language_selection_search_placeholder">Search for Languages</string>