src/com/android/settings/homepage/SettingsHomepageActivity.java - LeafOS-Project/android_packages_apps_Settings - Gitiles

 /*
  * Copyright (C) 2018 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.homepage;

 import static android.provider.Settings.ACTION_SETTINGS_EMBED_DEEP_LINK_ACTIVITY;
 import static android.provider.Settings.EXTRA_SETTINGS_EMBEDDED_DEEP_LINK_HIGHLIGHT_MENU_KEY;
 import static android.provider.Settings.EXTRA_SETTINGS_EMBEDDED_DEEP_LINK_INTENT_URI;

 import android.animation.LayoutTransition;
 import android.app.ActivityManager;
 import android.app.settings.SettingsEnums;
 import android.content.ComponentName;
 import android.content.Intent;
 import android.os.Bundle;
 import android.text.TextUtils;
 import android.util.ArraySet;
 import android.util.FeatureFlagUtils;
 import android.util.Log;
 import android.view.View;
 import android.widget.FrameLayout;
 import android.widget.ImageView;
 import android.widget.Toolbar;

 import androidx.fragment.app.Fragment;
 import androidx.fragment.app.FragmentActivity;
 import androidx.fragment.app.FragmentManager;
 import androidx.fragment.app.FragmentTransaction;

 import com.android.settings.R;
 import com.android.settings.Settings;
 import com.android.settings.SettingsActivity;
 import com.android.settings.SettingsApplication;
 import com.android.settings.Utils;
 import com.android.settings.accounts.AvatarViewMixin;
 import com.android.settings.activityembedding.ActivityEmbeddingRulesController;
 import com.android.settings.activityembedding.ActivityEmbeddingUtils;
 import com.android.settings.core.CategoryMixin;
 import com.android.settings.core.FeatureFlags;
 import com.android.settings.homepage.contextualcards.ContextualCardsFragment;
 import com.android.settings.overlay.FeatureFactory;
 import com.android.settingslib.core.lifecycle.HideNonSystemOverlayMixin;

 import java.net.URISyntaxException;
 import java.util.Set;

 /** Settings homepage activity */
 public class SettingsHomepageActivity extends FragmentActivity implements
         CategoryMixin.CategoryHandler {

     private static final String TAG = "SettingsHomepageActivity";

     // Additional extra of Settings#ACTION_SETTINGS_LARGE_SCREEN_DEEP_LINK.
     // Put true value to the intent when startActivity for a deep link intent from this Activity.
     public static final String EXTRA_IS_FROM_SETTINGS_HOMEPAGE = "is_from_settings_homepage";

     // Additional extra of Settings#ACTION_SETTINGS_LARGE_SCREEN_DEEP_LINK.
     // Set & get Uri of the Intent separately to prevent failure of Intent#ParseUri.
     public static final String EXTRA_SETTINGS_LARGE_SCREEN_DEEP_LINK_INTENT_DATA =
             "settings_large_screen_deep_link_intent_data";

     // An alias class name of SettingsHomepageActivity.
     public static final String ALIAS_DEEP_LINK = "com.android.settings.DeepLinkHomepageActivity";

     private static final int DEFAULT_HIGHLIGHT_MENU_KEY = R.string.menu_key_network;
     private static final long HOMEPAGE_LOADING_TIMEOUT_MS = 300;

     private TopLevelSettings mMainFragment;
     private View mHomepageView;
     private View mSuggestionView;
     private CategoryMixin mCategoryMixin;
     private Set<HomepageLoadedListener> mLoadedListeners;

     /** A listener receiving homepage loaded events. */
     public interface HomepageLoadedListener {
         /** Called when the homepage is loaded. */
         void onHomepageLoaded();
     }

     /**
      *  Try to register a {@link HomepageLoadedListener}. If homepage is already loaded, the
      *  listener will not be notified.
      *
      *  @return Whether the listener should be registered.
      */
     public boolean registerHomepageLoadedListenerIfNeeded(HomepageLoadedListener listener) {
         if (mHomepageView == null) {
             return false;
         } else {
             if (!mLoadedListeners.contains(listener)) {
                 mLoadedListeners.add(listener);
             }
             return true;
         }
     }

     /**
      * Shows the homepage and shows/hides the suggestion together. Only allows to be executed once
      * to avoid the flicker caused by the suggestion suddenly appearing/disappearing.
      */
     public void showHomepageWithSuggestion(boolean showSuggestion) {
         if (mHomepageView == null) {
             return;
         }
         Log.i(TAG, "showHomepageWithSuggestion: " + showSuggestion);
         final View homepageView = mHomepageView;
         mSuggestionView.setVisibility(showSuggestion ? View.VISIBLE : View.GONE);
         mHomepageView = null;

         mLoadedListeners.forEach(listener -> listener.onHomepageLoaded());
         mLoadedListeners.clear();
         homepageView.setVisibility(View.VISIBLE);
     }

     /** Returns the main content fragment */
     public TopLevelSettings getMainFragment() {
         return mMainFragment;
     }

     @Override
     public CategoryMixin getCategoryMixin() {
         return mCategoryMixin;
     }

     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.settings_homepage_container);

         final View appBar = findViewById(R.id.app_bar_container);
         appBar.setMinimumHeight(getSearchBoxHeight());
         initHomepageContainer();
         mLoadedListeners = new ArraySet<>();

         final Toolbar toolbar = findViewById(R.id.search_action_bar);
         FeatureFactory.getFactory(this).getSearchFeatureProvider()
                 .initSearchToolbar(this /* activity */, toolbar, SettingsEnums.SETTINGS_HOMEPAGE);

         getLifecycle().addObserver(new HideNonSystemOverlayMixin(this));
         mCategoryMixin = new CategoryMixin(this);
         getLifecycle().addObserver(mCategoryMixin);

         if (!getSystemService(ActivityManager.class).isLowRamDevice()) {
             // Only allow features on high ram devices.
             final ImageView avatarView = findViewById(R.id.account_avatar);
             if (AvatarViewMixin.isAvatarSupported(this)) {
                 avatarView.setVisibility(View.VISIBLE);
                 getLifecycle().addObserver(new AvatarViewMixin(this, avatarView));
             }

             showSuggestionFragment();

             if (FeatureFlagUtils.isEnabled(this, FeatureFlags.CONTEXTUAL_HOME)) {
                 showFragment(new ContextualCardsFragment(), R.id.contextual_cards_content);
             }
         }
         mMainFragment = new TopLevelSettings();
         mMainFragment.getArguments().putString(SettingsActivity.EXTRA_FRAGMENT_ARG_KEY,
                 getHighlightMenuKey());
         showFragment(mMainFragment, R.id.main_content);

         ((FrameLayout) findViewById(R.id.main_content))
                 .getLayoutTransition().enableTransitionType(LayoutTransition.CHANGING);

         // Launch the intent from deep link for large screen devices.
         launchDeepLinkIntentToRight();
     }

     @Override
     protected void onStart() {
         ((SettingsApplication) getApplication()).setHomeActivity(this);
         super.onStart();
     }

     @Override
     protected void onNewIntent(Intent intent) {
         super.onNewIntent(intent);

         // When it's large screen 2-pane and Settings app is in the background, receiving an Intent
         // will not recreate this activity. Update the intent for this case.
         setIntent(intent);
         reloadHighlightMenuKey();
         if (isFinishing()) {
             return;
         }
         // Launch the intent from deep link for large screen devices.
         launchDeepLinkIntentToRight();
     }

     private void showSuggestionFragment() {
         final Class<? extends Fragment> fragment = FeatureFactory.getFactory(this)
                 .getSuggestionFeatureProvider(this).getContextualSuggestionFragment();
         if (fragment == null) {
             return;
         }

         mSuggestionView = findViewById(R.id.suggestion_content);
         mHomepageView = findViewById(R.id.settings_homepage_container);
         // Hide the homepage for preparing the suggestion.
         mHomepageView.setVisibility(View.INVISIBLE);
         // Schedule a timer to show the homepage and hide the suggestion on timeout.
         mHomepageView.postDelayed(() -> showHomepageWithSuggestion(false),
                 HOMEPAGE_LOADING_TIMEOUT_MS);
         try {
             showFragment(fragment.getConstructor().newInstance(), R.id.suggestion_content);
         } catch (Exception e) {
             Log.w(TAG, "Cannot show fragment", e);
         }
     }

     private void showFragment(Fragment fragment, int id) {
         final FragmentManager fragmentManager = getSupportFragmentManager();
         final FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
         final Fragment showFragment = fragmentManager.findFragmentById(id);

         if (showFragment == null) {
             fragmentTransaction.add(id, fragment);
         } else {
             fragmentTransaction.show(showFragment);
         }
         fragmentTransaction.commit();
     }

     private void launchDeepLinkIntentToRight() {
         if (!ActivityEmbeddingUtils.isEmbeddingActivityEnabled(this)) {
             return;
         }

         final Intent intent = getIntent();
         if (intent == null || !TextUtils.equals(intent.getAction(),
                 ACTION_SETTINGS_EMBED_DEEP_LINK_ACTIVITY)) {
             return;
         }

         final String intentUriString = intent.getStringExtra(
                 EXTRA_SETTINGS_EMBEDDED_DEEP_LINK_INTENT_URI);
         if (TextUtils.isEmpty(intentUriString)) {
             Log.e(TAG, "No EXTRA_SETTINGS_EMBEDDED_DEEP_LINK_INTENT_URI to deep link");
             finish();
             return;
         }

         final Intent targetIntent;
         try {
             targetIntent = Intent.parseUri(intentUriString, Intent.URI_INTENT_SCHEME);
         } catch (URISyntaxException e) {
             Log.e(TAG, "Failed to parse deep link intent: " + e);
             finish();
             return;
         }

         final ComponentName targetComponentName = targetIntent.resolveActivity(getPackageManager());
         if (targetComponentName == null) {
             Log.e(TAG, "No valid target for the deep link intent: " + targetIntent);
             finish();
             return;
         }
         targetIntent.setComponent(targetComponentName);

         // To prevent launchDeepLinkIntentToRight again for configuration change.
         intent.setAction(null);

         targetIntent.setFlags(targetIntent.getFlags() & ~Intent.FLAG_ACTIVITY_NEW_TASK);
         targetIntent.addFlags(Intent.FLAG_ACTIVITY_FORWARD_RESULT);

         // Sender of intent may want to send intent extra data to the destination of targetIntent.
         targetIntent.replaceExtras(intent);

         targetIntent.putExtra(EXTRA_IS_FROM_SETTINGS_HOMEPAGE, true);
         targetIntent.putExtra(SettingsActivity.EXTRA_IS_FROM_SLICE, false);

         targetIntent.setData(intent.getParcelableExtra(
                 SettingsHomepageActivity.EXTRA_SETTINGS_LARGE_SCREEN_DEEP_LINK_INTENT_DATA));

         // Set 2-pane pair rule for the deep link page.
         ActivityEmbeddingRulesController.registerTwoPanePairRule(this,
                 getDeepLinkComponent(),
                 targetComponentName,
                 targetIntent.getAction(),
                 true /* finishPrimaryWithSecondary */,
                 true /* finishSecondaryWithPrimary */,
                 true /* clearTop*/);
         ActivityEmbeddingRulesController.registerTwoPanePairRule(this,
                 new ComponentName(Settings.class.getPackageName(), Settings.class.getName()),
                 targetComponentName,
                 targetIntent.getAction(),
                 true /* finishPrimaryWithSecondary */,
                 true /* finishSecondaryWithPrimary */,
                 true /* clearTop*/);
         startActivity(targetIntent);
     }

     protected ComponentName getDeepLinkComponent() {
         return new ComponentName(Utils.SETTINGS_PACKAGE_NAME, ALIAS_DEEP_LINK);
     }

     private String getHighlightMenuKey() {
         final Intent intent = getIntent();
         if (intent != null && TextUtils.equals(intent.getAction(),
                 ACTION_SETTINGS_EMBED_DEEP_LINK_ACTIVITY)) {
             final String menuKey = intent.getStringExtra(
                     EXTRA_SETTINGS_EMBEDDED_DEEP_LINK_HIGHLIGHT_MENU_KEY);
             if (!TextUtils.isEmpty(menuKey)) {
                 return menuKey;
             }
         }
         return getString(DEFAULT_HIGHLIGHT_MENU_KEY);
     }

     private void reloadHighlightMenuKey() {
         mMainFragment.getArguments().putString(SettingsActivity.EXTRA_FRAGMENT_ARG_KEY,
                 getHighlightMenuKey());
         mMainFragment.reloadHighlightMenuKey();
     }

     private void initHomepageContainer() {
         final View view = findViewById(R.id.homepage_container);
         // Prevent inner RecyclerView gets focus and invokes scrolling.
         view.setFocusableInTouchMode(true);
         view.requestFocus();
     }

     private int getSearchBoxHeight() {
         final int searchBarHeight = getResources().getDimensionPixelSize(R.dimen.search_bar_height);
         final int searchBarMargin = getResources().getDimensionPixelSize(R.dimen.search_bar_margin);
         return searchBarHeight + searchBarMargin * 2;
     }
 }
	/*
	* Copyright (C) 2018 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.homepage;

	import static android.provider.Settings.ACTION_SETTINGS_EMBED_DEEP_LINK_ACTIVITY;
	import static android.provider.Settings.EXTRA_SETTINGS_EMBEDDED_DEEP_LINK_HIGHLIGHT_MENU_KEY;
	import static android.provider.Settings.EXTRA_SETTINGS_EMBEDDED_DEEP_LINK_INTENT_URI;

	import android.animation.LayoutTransition;
	import android.app.ActivityManager;
	import android.app.settings.SettingsEnums;
	import android.content.ComponentName;
	import android.content.Intent;
	import android.os.Bundle;
	import android.text.TextUtils;
	import android.util.ArraySet;
	import android.util.FeatureFlagUtils;
	import android.util.Log;
	import android.view.View;
	import android.widget.FrameLayout;
	import android.widget.ImageView;
	import android.widget.Toolbar;

	import androidx.fragment.app.Fragment;
	import androidx.fragment.app.FragmentActivity;
	import androidx.fragment.app.FragmentManager;
	import androidx.fragment.app.FragmentTransaction;

	import com.android.settings.R;
	import com.android.settings.Settings;
	import com.android.settings.SettingsActivity;
	import com.android.settings.SettingsApplication;
	import com.android.settings.Utils;
	import com.android.settings.accounts.AvatarViewMixin;
	import com.android.settings.activityembedding.ActivityEmbeddingRulesController;
	import com.android.settings.activityembedding.ActivityEmbeddingUtils;
	import com.android.settings.core.CategoryMixin;
	import com.android.settings.core.FeatureFlags;
	import com.android.settings.homepage.contextualcards.ContextualCardsFragment;
	import com.android.settings.overlay.FeatureFactory;
	import com.android.settingslib.core.lifecycle.HideNonSystemOverlayMixin;

	import java.net.URISyntaxException;
	import java.util.Set;

	/** Settings homepage activity */
	public class SettingsHomepageActivity extends FragmentActivity implements
	CategoryMixin.CategoryHandler {

	private static final String TAG = "SettingsHomepageActivity";

	// Additional extra of Settings#ACTION_SETTINGS_LARGE_SCREEN_DEEP_LINK.
	// Put true value to the intent when startActivity for a deep link intent from this Activity.
	public static final String EXTRA_IS_FROM_SETTINGS_HOMEPAGE = "is_from_settings_homepage";

	// Additional extra of Settings#ACTION_SETTINGS_LARGE_SCREEN_DEEP_LINK.
	// Set & get Uri of the Intent separately to prevent failure of Intent#ParseUri.
	public static final String EXTRA_SETTINGS_LARGE_SCREEN_DEEP_LINK_INTENT_DATA =
	"settings_large_screen_deep_link_intent_data";

	// An alias class name of SettingsHomepageActivity.
	public static final String ALIAS_DEEP_LINK = "com.android.settings.DeepLinkHomepageActivity";

	private static final int DEFAULT_HIGHLIGHT_MENU_KEY = R.string.menu_key_network;
	private static final long HOMEPAGE_LOADING_TIMEOUT_MS = 300;

	private TopLevelSettings mMainFragment;
	private View mHomepageView;
	private View mSuggestionView;
	private CategoryMixin mCategoryMixin;
	private Set<HomepageLoadedListener> mLoadedListeners;

	/** A listener receiving homepage loaded events. */
	public interface HomepageLoadedListener {
	/** Called when the homepage is loaded. */
	void onHomepageLoaded();
	}

	/**
	* Try to register a {@link HomepageLoadedListener}. If homepage is already loaded, the
	* listener will not be notified.
	*
	* @return Whether the listener should be registered.
	*/
	public boolean registerHomepageLoadedListenerIfNeeded(HomepageLoadedListener listener) {
	if (mHomepageView == null) {
	return false;
	} else {
	if (!mLoadedListeners.contains(listener)) {
	mLoadedListeners.add(listener);
	}
	return true;
	}
	}

	/**
	* Shows the homepage and shows/hides the suggestion together. Only allows to be executed once
	* to avoid the flicker caused by the suggestion suddenly appearing/disappearing.
	*/
	public void showHomepageWithSuggestion(boolean showSuggestion) {
	if (mHomepageView == null) {
	return;
	}
	Log.i(TAG, "showHomepageWithSuggestion: " + showSuggestion);
	final View homepageView = mHomepageView;
	mSuggestionView.setVisibility(showSuggestion ? View.VISIBLE : View.GONE);
	mHomepageView = null;

	mLoadedListeners.forEach(listener -> listener.onHomepageLoaded());
	mLoadedListeners.clear();
	homepageView.setVisibility(View.VISIBLE);
	}

	/** Returns the main content fragment */
	public TopLevelSettings getMainFragment() {
	return mMainFragment;
	}

	@Override
	public CategoryMixin getCategoryMixin() {
	return mCategoryMixin;
	}

	@Override
	protected void onCreate(Bundle savedInstanceState) {
	super.onCreate(savedInstanceState);
	setContentView(R.layout.settings_homepage_container);

	final View appBar = findViewById(R.id.app_bar_container);
	appBar.setMinimumHeight(getSearchBoxHeight());
	initHomepageContainer();
	mLoadedListeners = new ArraySet<>();

	final Toolbar toolbar = findViewById(R.id.search_action_bar);
	FeatureFactory.getFactory(this).getSearchFeatureProvider()
	.initSearchToolbar(this /* activity */, toolbar, SettingsEnums.SETTINGS_HOMEPAGE);

	getLifecycle().addObserver(new HideNonSystemOverlayMixin(this));
	mCategoryMixin = new CategoryMixin(this);
	getLifecycle().addObserver(mCategoryMixin);

	if (!getSystemService(ActivityManager.class).isLowRamDevice()) {
	// Only allow features on high ram devices.
	final ImageView avatarView = findViewById(R.id.account_avatar);
	if (AvatarViewMixin.isAvatarSupported(this)) {
	avatarView.setVisibility(View.VISIBLE);
	getLifecycle().addObserver(new AvatarViewMixin(this, avatarView));
	}

	showSuggestionFragment();

	if (FeatureFlagUtils.isEnabled(this, FeatureFlags.CONTEXTUAL_HOME)) {
	showFragment(new ContextualCardsFragment(), R.id.contextual_cards_content);
	}
	}
	mMainFragment = new TopLevelSettings();
	mMainFragment.getArguments().putString(SettingsActivity.EXTRA_FRAGMENT_ARG_KEY,
	getHighlightMenuKey());
	showFragment(mMainFragment, R.id.main_content);

	((FrameLayout) findViewById(R.id.main_content))
	.getLayoutTransition().enableTransitionType(LayoutTransition.CHANGING);

	// Launch the intent from deep link for large screen devices.
	launchDeepLinkIntentToRight();
	}

	@Override
	protected void onStart() {
	((SettingsApplication) getApplication()).setHomeActivity(this);
	super.onStart();
	}

	@Override
	protected void onNewIntent(Intent intent) {
	super.onNewIntent(intent);

	// When it's large screen 2-pane and Settings app is in the background, receiving an Intent
	// will not recreate this activity. Update the intent for this case.
	setIntent(intent);
	reloadHighlightMenuKey();
	if (isFinishing()) {
	return;
	}
	// Launch the intent from deep link for large screen devices.
	launchDeepLinkIntentToRight();
	}

	private void showSuggestionFragment() {
	final Class<? extends Fragment> fragment = FeatureFactory.getFactory(this)
	.getSuggestionFeatureProvider(this).getContextualSuggestionFragment();
	if (fragment == null) {
	return;
	}

	mSuggestionView = findViewById(R.id.suggestion_content);
	mHomepageView = findViewById(R.id.settings_homepage_container);
	// Hide the homepage for preparing the suggestion.
	mHomepageView.setVisibility(View.INVISIBLE);
	// Schedule a timer to show the homepage and hide the suggestion on timeout.
	mHomepageView.postDelayed(() -> showHomepageWithSuggestion(false),
	HOMEPAGE_LOADING_TIMEOUT_MS);
	try {
	showFragment(fragment.getConstructor().newInstance(), R.id.suggestion_content);
	} catch (Exception e) {
	Log.w(TAG, "Cannot show fragment", e);
	}
	}

	private void showFragment(Fragment fragment, int id) {
	final FragmentManager fragmentManager = getSupportFragmentManager();
	final FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
	final Fragment showFragment = fragmentManager.findFragmentById(id);

	if (showFragment == null) {
	fragmentTransaction.add(id, fragment);
	} else {
	fragmentTransaction.show(showFragment);
	}
	fragmentTransaction.commit();
	}

	private void launchDeepLinkIntentToRight() {
	if (!ActivityEmbeddingUtils.isEmbeddingActivityEnabled(this)) {
	return;
	}

	final Intent intent = getIntent();
	if (intent == null \|\| !TextUtils.equals(intent.getAction(),
	ACTION_SETTINGS_EMBED_DEEP_LINK_ACTIVITY)) {
	return;
	}

	final String intentUriString = intent.getStringExtra(
	EXTRA_SETTINGS_EMBEDDED_DEEP_LINK_INTENT_URI);
	if (TextUtils.isEmpty(intentUriString)) {
	Log.e(TAG, "No EXTRA_SETTINGS_EMBEDDED_DEEP_LINK_INTENT_URI to deep link");
	finish();
	return;
	}

	final Intent targetIntent;
	try {
	targetIntent = Intent.parseUri(intentUriString, Intent.URI_INTENT_SCHEME);
	} catch (URISyntaxException e) {
	Log.e(TAG, "Failed to parse deep link intent: " + e);
	finish();
	return;
	}

	final ComponentName targetComponentName = targetIntent.resolveActivity(getPackageManager());
	if (targetComponentName == null) {
	Log.e(TAG, "No valid target for the deep link intent: " + targetIntent);
	finish();
	return;
	}
	targetIntent.setComponent(targetComponentName);

	// To prevent launchDeepLinkIntentToRight again for configuration change.
	intent.setAction(null);

	targetIntent.setFlags(targetIntent.getFlags() & ~Intent.FLAG_ACTIVITY_NEW_TASK);
	targetIntent.addFlags(Intent.FLAG_ACTIVITY_FORWARD_RESULT);

	// Sender of intent may want to send intent extra data to the destination of targetIntent.
	targetIntent.replaceExtras(intent);

	targetIntent.putExtra(EXTRA_IS_FROM_SETTINGS_HOMEPAGE, true);
	targetIntent.putExtra(SettingsActivity.EXTRA_IS_FROM_SLICE, false);

	targetIntent.setData(intent.getParcelableExtra(
	SettingsHomepageActivity.EXTRA_SETTINGS_LARGE_SCREEN_DEEP_LINK_INTENT_DATA));

	// Set 2-pane pair rule for the deep link page.
	ActivityEmbeddingRulesController.registerTwoPanePairRule(this,
	getDeepLinkComponent(),
	targetComponentName,
	targetIntent.getAction(),
	true /* finishPrimaryWithSecondary */,
	true /* finishSecondaryWithPrimary */,
	true /* clearTop*/);
	ActivityEmbeddingRulesController.registerTwoPanePairRule(this,
	new ComponentName(Settings.class.getPackageName(), Settings.class.getName()),
	targetComponentName,
	targetIntent.getAction(),
	true /* finishPrimaryWithSecondary */,
	true /* finishSecondaryWithPrimary */,
	true /* clearTop*/);
	startActivity(targetIntent);
	}

	protected ComponentName getDeepLinkComponent() {
	return new ComponentName(Utils.SETTINGS_PACKAGE_NAME, ALIAS_DEEP_LINK);
	}

	private String getHighlightMenuKey() {
	final Intent intent = getIntent();
	if (intent != null && TextUtils.equals(intent.getAction(),
	ACTION_SETTINGS_EMBED_DEEP_LINK_ACTIVITY)) {
	final String menuKey = intent.getStringExtra(
	EXTRA_SETTINGS_EMBEDDED_DEEP_LINK_HIGHLIGHT_MENU_KEY);
	if (!TextUtils.isEmpty(menuKey)) {
	return menuKey;
	}
	}
	return getString(DEFAULT_HIGHLIGHT_MENU_KEY);
	}

	private void reloadHighlightMenuKey() {
	mMainFragment.getArguments().putString(SettingsActivity.EXTRA_FRAGMENT_ARG_KEY,
	getHighlightMenuKey());
	mMainFragment.reloadHighlightMenuKey();
	}

	private void initHomepageContainer() {
	final View view = findViewById(R.id.homepage_container);
	// Prevent inner RecyclerView gets focus and invokes scrolling.
	view.setFocusableInTouchMode(true);
	view.requestFocus();
	}

	private int getSearchBoxHeight() {
	final int searchBarHeight = getResources().getDimensionPixelSize(R.dimen.search_bar_height);
	final int searchBarMargin = getResources().getDimensionPixelSize(R.dimen.search_bar_margin);
	return searchBarHeight + searchBarMargin * 2;
	}
	}