Add A11y SUW hub page. Minor alterations of

Magnification screen to be consistent wtih most
recent desigs.

Change-Id: I191f6f66edb26597db6f4ed41311998b8ce26ca4

src/com/android/settings/accessibility/AccessibilitySettingsForSetupWizard.java

@@ -0,0 +1,114 @@
+/*
+ * Copyright (C) 2015 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.accessibility;
+
+import android.os.Bundle;
+import android.provider.Settings;
+import android.support.v7.preference.Preference;
+import com.android.internal.logging.MetricsLogger;
+import com.android.settings.DialogCreatable;
+import com.android.settings.R;
+import com.android.settings.SettingsPreferenceFragment;
+
+/**
+ * Activity with the accessibility settings specific to Setup Wizard.
+ */
+public class AccessibilitySettingsForSetupWizard extends SettingsPreferenceFragment
+        implements DialogCreatable, Preference.OnPreferenceChangeListener {
+
+    // Preferences
+    private static final String DISPLAY_MAGNIFICATION_PREFERENCE =
+            "screen_magnification_preference";
+    private static final String DISPLAY_DALTONIZER_PREFERENCE = "daltonizer_preference";
+    private static final String TALKBACK_PREFERENCE = "talkback_preference";
+
+    private static final String TALKBACK_NAME = "Talkback";
+
+    // Preference controls.
+    private Preference mDisplayMagnificationPreference;
+    private Preference mDisplayDaltonizerPreference;
+    private Preference mTalkbackPreference;
+
+    @Override
+    protected int getMetricsCategory() {
+        return MetricsLogger.ACCESSIBILITY;
+    }
+
+    @Override
+    protected int getHelpResource() {
+        return R.string.help_uri_accessibility;
+    }
+
+    @Override
+    public void onCreate(Bundle icicle) {
+        super.onCreate(icicle);
+        addPreferencesFromResource(R.xml.accessibility_settings_for_setup_wizard);
+
+        mDisplayMagnificationPreference = findPreference(DISPLAY_MAGNIFICATION_PREFERENCE);
+        mDisplayDaltonizerPreference = findPreference(DISPLAY_DALTONIZER_PREFERENCE);
+
+        mTalkbackPreference = findPreference(TALKBACK_PREFERENCE);
+        mTalkbackPreference.setTitle(TALKBACK_NAME);
+    }
+
+    @Override
+    public void onActivityCreated(Bundle savedInstanceState) {
+        super.onActivityCreated(savedInstanceState);
+        setHasOptionsMenu(false);
+    }
+
+    @Override
+    public void onResume() {
+        super.onResume();
+        updatePreferences();
+    }
+
+    @Override
+    public boolean onPreferenceChange(Preference preference, Object newValue) {
+        return false;
+    }
+
+    @Override
+    public boolean onPreferenceTreeClick(Preference preference) {
+        if (mDisplayMagnificationPreference == preference) {
+            Bundle extras = mDisplayMagnificationPreference.getExtras();
+            extras.putString(AccessibilitySettings.EXTRA_TITLE,
+                    getString(R.string.accessibility_screen_magnification_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);
+        }
+
+        return super.onPreferenceTreeClick(preference);
+    }
+
+    private void updatePreferences() {
+        updateFeatureSummary(Settings.Secure.ACCESSIBILITY_DISPLAY_MAGNIFICATION_ENABLED,
+                mDisplayMagnificationPreference);
+        updateFeatureSummary(Settings.Secure.ACCESSIBILITY_DISPLAY_DALTONIZER_ENABLED,
+                mDisplayDaltonizerPreference);
+    }
+
+    private void updateFeatureSummary(String prefKey, Preference pref) {
+        final boolean enabled = Settings.Secure.getInt(getContentResolver(), prefKey, 0) == 1;
+        pref.setSummary(enabled ? R.string.accessibility_feature_state_on
+                : R.string.accessibility_feature_state_off);
+    }
+}