import android.content.Context;
import android.os.Bundle;
import android.provider.SearchIndexableResource;
+import android.text.Annotation;
+import android.text.Spannable;
+import android.text.SpannableStringBuilder;
+import android.text.Spanned;
+import android.text.TextPaint;
+import android.text.TextUtils;
+import android.text.style.URLSpan;
+import android.view.View;
+
+import androidx.annotation.VisibleForTesting;
+import androidx.fragment.app.Fragment;
import com.android.settings.R;
import com.android.settings.dashboard.DashboardFragment;
import com.android.settings.search.BaseSearchIndexProvider;
import com.android.settings.search.Indexable;
+import com.android.settingslib.HelpUtils;
import com.android.settingslib.search.SearchIndexable;
+import com.android.settingslib.widget.FooterPreference;
import java.util.Arrays;
import java.util.List;
@SearchIndexable(forTarget = SearchIndexable.ALL & ~SearchIndexable.ARC)
public class BatterySaverSettings extends DashboardFragment {
private static final String TAG = "BatterySaverSettings";
+ public static final String KEY_FOOTER_PREFERENCE = "footer_preference";
+ private SpannableStringBuilder mFooterText;
+ private String mHelpUri;
@Override
- public void onActivityCreated(Bundle savedInstanceState) {
- super.onActivityCreated(savedInstanceState);
+ public void onStart() {
+ super.onStart();
+ setupFooter();
}
@Override
return Arrays.asList(sir);
}
};
+
+ // Updates the footer for this page.
+ @VisibleForTesting
+ void setupFooter() {
+ mFooterText = new SpannableStringBuilder(getText(
+ com.android.internal.R.string.battery_saver_description_with_learn_more));
+ mHelpUri = getString(R.string.help_url_battery_saver_settings);
+ if (!TextUtils.isEmpty(mHelpUri)) {
+ addHelpLink();
+ }
+ }
+
+ // Changes the text to include a learn more link if possible.
+ @VisibleForTesting
+ void addHelpLink() {
+ FooterPreference pref = getPreferenceScreen().findPreference(KEY_FOOTER_PREFERENCE);
+ if (pref != null) {
+ SupportPageLearnMoreSpan.linkify(mFooterText, this, mHelpUri);
+ pref.setTitle(mFooterText);
+ }
+ }
+
+ /**
+ * A {@link URLSpan} that opens a support page when clicked
+ */
+ public static class SupportPageLearnMoreSpan extends URLSpan {
+
+
+ private static final String ANNOTATION_URL = "url";
+ private final Fragment mFragment;
+ private final String mUriString;
+
+ public SupportPageLearnMoreSpan(Fragment fragment, String uriString) {
+ // sets the url to empty string so we can prevent any other span processing from
+ // from clearing things we need in this string.
+ super("");
+ mFragment = fragment;
+ mUriString = uriString;
+ }
+
+ @Override
+ public void onClick(View widget) {
+ if (mFragment != null) {
+ // launch the support page
+ mFragment.startActivityForResult(HelpUtils.getHelpIntent(mFragment.getContext(),
+ mUriString, ""), 0);
+ }
+ }
+
+ @Override
+ public void updateDrawState(TextPaint ds) {
+ super.updateDrawState(ds);
+ // remove underline
+ ds.setUnderlineText(false);
+ }
+
+ /**
+ * This method takes a string and turns it into a url span that will launch a support page
+ * @param msg The text to turn into a link
+ * @param fragment The fragment which contains this span
+ * @param uriString The URI string of the help article to open when clicked
+ * @return A CharSequence containing the original text content as a url
+ */
+ public static CharSequence linkify(Spannable msg, Fragment fragment, String uriString) {
+ Annotation[] spans = msg.getSpans(0, msg.length(), Annotation.class);
+ for (Annotation annotation : spans) {
+ int start = msg.getSpanStart(annotation);
+ int end = msg.getSpanEnd(annotation);
+ if (ANNOTATION_URL.equals(annotation.getValue())) {
+ SupportPageLearnMoreSpan link =
+ new SupportPageLearnMoreSpan(fragment, uriString);
+ msg.removeSpan(annotation);
+ msg.setSpan(link, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
+ }
+ }
+ return msg;
+ }
+ }
}
--- /dev/null
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License
+ */
+
+package com.android.settings.fuelgauge.batterysaver;
+
+import static org.mockito.ArgumentMatchers.anyInt;
+import static org.mockito.Mockito.atLeastOnce;
+import static org.mockito.Mockito.doReturn;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.spy;
+import static org.mockito.Mockito.verify;
+
+import androidx.preference.PreferenceScreen;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.robolectric.RobolectricTestRunner;
+
+@RunWith(RobolectricTestRunner.class)
+public class BatterySaverSettingsTest {
+ BatterySaverSettings mFragment;
+ @Mock
+ PreferenceScreen mScreen;
+
+ @Before
+ public void setUp() {
+ MockitoAnnotations.initMocks(this);
+
+ mFragment = spy(new BatterySaverSettings());
+ doReturn(mScreen).when(mFragment).getPreferenceScreen();
+ }
+
+
+ @Test
+ public void setupFooter_linkAddedWhenAppropriate() {
+ doReturn("").when(mFragment).getText(anyInt());
+ doReturn("").when(mFragment).getString(anyInt());
+ mFragment.setupFooter();
+ verify(mFragment, never()).addHelpLink();
+
+ doReturn("testString").when(mFragment).getText(anyInt());
+ doReturn("testString").when(mFragment).getString(anyInt());
+ mFragment.setupFooter();
+ verify(mFragment, atLeastOnce()).addHelpLink();
+ }
+}
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