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Hide "Magnify with button" if no navbar is shown

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Devices without a software-rendered navigation bar will be unable to
use "Magnify with button" as no accessibility button trigger for
magnification can be shown.

In this case, we hide the setting by preventing
MagnificationPreferenceFragment from showing the list of mag
modes, instead launching directly into the PreferenceFragment for
"Magnify with triple-tap"

Bug: 36862906
Test: Manual - Configured marlin to disable the navigation bar and
      verified behavior in SUW and Settings

Change-Id: Ie614ec292d7779044274b7c79eaed1df080c0fd1
This commit is contained in:
Casey Burkhardt
2017-04-13 15:50:28 -07:00
parent 8399697520
commit 875d3b2471
3 changed files with 62 additions and 16 deletions
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47
src/com/android/settings/accessibility/MagnificationPreferenceFragment.java
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@@ -19,6 +19,7 @@ package com.android.settings.accessibility;
import android.accessibilityservice.AccessibilityServiceInfo;
import android.content.ComponentName;
import android.content.Context;
import android.content.res.Resources;
import android.os.Bundle;
import android.provider.SearchIndexableResource;
import android.provider.Settings;
@@ -34,6 +35,7 @@ import com.android.settings.search.BaseSearchIndexProvider;
import com.android.settings.search.Indexable;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
public final class MagnificationPreferenceFragment extends SettingsPreferenceFragment implements
@@ -123,18 +125,7 @@ public final class MagnificationPreferenceFragment extends SettingsPreferenceFra
private void handleMagnificationGesturesPreferenceScreenClick() {
Bundle extras = mMagnificationGesturesPreference.getExtras();
extras.putString(AccessibilitySettings.EXTRA_PREFERENCE_KEY,
Settings.Secure.ACCESSIBILITY_DISPLAY_MAGNIFICATION_ENABLED);
extras.putString(AccessibilitySettings.EXTRA_TITLE, getString(
R.string.accessibility_screen_magnification_gestures_title));
extras.putCharSequence(AccessibilitySettings.EXTRA_SUMMARY,
getActivity().getResources().getText(
R.string.accessibility_screen_magnification_summary));
extras.putBoolean(AccessibilitySettings.EXTRA_CHECKED,
Settings.Secure.getInt(getContentResolver(),
Settings.Secure.ACCESSIBILITY_DISPLAY_MAGNIFICATION_ENABLED, 0) == 1);
extras.putInt(AccessibilitySettings.EXTRA_VIDEO_RAW_RESOURCE_ID,
R.raw.accessibility_screen_magnification);
populateMagnificationGesturesPreferenceExtras(extras, getContext());
extras.putBoolean(AccessibilitySettings.EXTRA_LAUNCHED_FROM_SUW, mLaunchedFromSuw);
}
@@ -188,14 +179,40 @@ public final class MagnificationPreferenceFragment extends SettingsPreferenceFra
return null;
}
static void populateMagnificationGesturesPreferenceExtras(Bundle extras, Context context) {
extras.putString(AccessibilitySettings.EXTRA_PREFERENCE_KEY,
Settings.Secure.ACCESSIBILITY_DISPLAY_MAGNIFICATION_ENABLED);
extras.putString(AccessibilitySettings.EXTRA_TITLE, context.getString(
R.string.accessibility_screen_magnification_gestures_title));
extras.putCharSequence(AccessibilitySettings.EXTRA_SUMMARY, context.getResources().getText(
R.string.accessibility_screen_magnification_summary));
extras.putBoolean(AccessibilitySettings.EXTRA_CHECKED,
Settings.Secure.getInt(context.getContentResolver(),
Settings.Secure.ACCESSIBILITY_DISPLAY_MAGNIFICATION_ENABLED, 0) == 1);
extras.putInt(AccessibilitySettings.EXTRA_VIDEO_RAW_RESOURCE_ID,
R.raw.accessibility_screen_magnification);
}
/**
* @return {@code true} if this fragment should be shown, {@code false} otherwise. This
* fragment is shown in the case that more than one magnification mode is available.
*/
static boolean isApplicable(Resources res) {
return res.getBoolean(com.android.internal.R.bool.config_showNavigationBar);
}
public static final Indexable.SearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
new BaseSearchIndexProvider() {
@Override
public List<SearchIndexableResource> getXmlResourcesToIndex(Context context,
boolean enabled) {
final SearchIndexableResource sir = new SearchIndexableResource(context);
sir.xmlResId = R.xml.accessibility_magnification_settings;
return Arrays.asList(sir);
if (isApplicable(context.getResources())) {
final SearchIndexableResource sir = new SearchIndexableResource(context);
sir.xmlResId = R.xml.accessibility_magnification_settings;
return Arrays.asList(sir);
} else {
return Collections.emptyList();
}
}
};
}