From bf1a5cf218b02a3e415b3f7c6092f1510f91b969 Mon Sep 17 00:00:00 2001
From: Torsten Grote <t@grobox.de>
Date: Tue, 16 May 2023 16:55:19 -0300
Subject: [PATCH] Allow sharing download link for Briar from settings actions

---
 .../android/settings/SettingsFragment.java    | 23 +++++++++++++++++++
 .../res/drawable/ic_settings_share_link.xml   | 10 ++++++++
 briar-android/src/main/res/values/strings.xml |  2 ++
 briar-android/src/main/res/xml/settings.xml   |  5 ++++
 4 files changed, 40 insertions(+)
 create mode 100644 briar-android/src/main/res/drawable/ic_settings_share_link.xml

diff --git a/briar-android/src/main/java/org/briarproject/briar/android/settings/SettingsFragment.java b/briar-android/src/main/java/org/briarproject/briar/android/settings/SettingsFragment.java
index 4eb6a7f47..2d5ec5fc1 100644
--- a/briar-android/src/main/java/org/briarproject/briar/android/settings/SettingsFragment.java
+++ b/briar-android/src/main/java/org/briarproject/briar/android/settings/SettingsFragment.java
@@ -1,10 +1,12 @@
 package org.briarproject.briar.android.settings;
 
+import android.content.ActivityNotFoundException;
 import android.content.Context;
 import android.content.Intent;
 import android.net.Uri;
 import android.os.Bundle;
 import android.view.View;
+import android.widget.Toast;
 
 import org.briarproject.briar.R;
 import org.briarproject.briar.android.mailbox.MailboxActivity;
@@ -24,6 +26,9 @@ import androidx.preference.Preference;
 import androidx.preference.PreferenceFragmentCompat;
 import androidx.preference.PreferenceGroup;
 
+import static android.content.Intent.ACTION_SEND;
+import static android.content.Intent.EXTRA_TEXT;
+import static android.widget.Toast.LENGTH_LONG;
 import static java.util.Objects.requireNonNull;
 import static org.briarproject.briar.android.AppModule.getAndroidComponent;
 import static org.briarproject.briar.android.TestingConstants.IS_DEBUG_BUILD;
@@ -37,11 +42,14 @@ public class SettingsFragment extends PreferenceFragmentCompat {
 	public static final String SETTINGS_NAMESPACE = "android-ui";
 
 	private static final String PREF_KEY_AVATAR = "pref_key_avatar";
+	private static final String PREF_KEY_SHARE_LINK = "pref_key_share_app_link";
 	private static final String PREF_KEY_FEEDBACK = "pref_key_send_feedback";
 	private static final String PREF_KEY_DEV = "pref_key_dev";
 	private static final String PREF_KEY_EXPLODE = "pref_key_explode";
 	private static final String PREF_KEY_MAILBOX = "pref_key_mailbox";
 
+	private static final String DOWNLOAD_URL = "https://briarproject.org/download/";
+
 	@Inject
 	ViewModelProvider.Factory viewModelFactory;
 
@@ -86,6 +94,21 @@ public class SettingsFragment extends PreferenceFragmentCompat {
 			return true;
 		});
 
+		Preference prefShareLink =
+				requireNonNull(findPreference(PREF_KEY_SHARE_LINK));
+		prefShareLink.setOnPreferenceClickListener(preference -> {
+			String text = getString(R.string.share_app_link_text, DOWNLOAD_URL);
+			Intent sendIntent = new Intent(ACTION_SEND);
+			sendIntent.putExtra(EXTRA_TEXT, text);
+			sendIntent.setType("text/plain");
+			try {
+				startActivity(Intent.createChooser(sendIntent, null));
+			} catch (ActivityNotFoundException e) {
+				Toast.makeText(requireContext(),
+						R.string.error_start_activity, LENGTH_LONG).show();
+			}
+			return true;
+		});
 		Preference prefFeedback =
 				requireNonNull(findPreference(PREF_KEY_FEEDBACK));
 		prefFeedback.setOnPreferenceClickListener(preference -> {
diff --git a/briar-android/src/main/res/drawable/ic_settings_share_link.xml b/briar-android/src/main/res/drawable/ic_settings_share_link.xml
new file mode 100644
index 000000000..c561babf4
--- /dev/null
+++ b/briar-android/src/main/res/drawable/ic_settings_share_link.xml
@@ -0,0 +1,10 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+	android:width="24dp"
+	android:height="24dp"
+	android:tint="?android:attr/textColorPrimary"
+	android:viewportWidth="24"
+	android:viewportHeight="24">
+	<path
+		android:fillColor="#FFFFFFFF"
+		android:pathData="M21,12L14,5V9C7,10 4,15 3,20C5.5,16.5 9,14.9 14,14.9V19L21,12Z" />
+</vector>
diff --git a/briar-android/src/main/res/values/strings.xml b/briar-android/src/main/res/values/strings.xml
index 060fe42ef..c108f88d5 100644
--- a/briar-android/src/main/res/values/strings.xml
+++ b/briar-android/src/main/res/values/strings.xml
@@ -733,6 +733,8 @@
 
 	<!-- Settings Actions -->
 	<string name="pref_category_actions">Actions</string>
+	<string name="share_app_link">Share download link</string>
+	<string name="share_app_link_text">Download Briar at %s</string>
 	<string name="send_feedback">Send feedback</string>
 
 	<!-- Link Warning -->
diff --git a/briar-android/src/main/res/xml/settings.xml b/briar-android/src/main/res/xml/settings.xml
index c25dced90..ad7dee382 100644
--- a/briar-android/src/main/res/xml/settings.xml
+++ b/briar-android/src/main/res/xml/settings.xml
@@ -47,6 +47,11 @@
 				android:targetClass="org.briarproject.briar.android.hotspot.HotspotActivity"
 				android:targetPackage="@string/app_package" />
 		</Preference>
+		<Preference
+			android:key="pref_key_share_app_link"
+			android:title="@string/share_app_link"
+			app:icon="@drawable/ic_settings_share_link">
+		</Preference>
 		<Preference
 			android:key="pref_key_send_feedback"
 			android:title="@string/send_feedback"