chrome/android/java/src/org/chromium/chrome/browser/preferences/SearchEngineAdapter.java - chromium/src - Git at Google

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.

 package org.chromium.chrome.browser.preferences;

 import android.content.Context;
 import android.content.Intent;
 import android.content.SharedPreferences;
 import android.content.res.Resources;
 import android.os.Build;
 import android.os.Bundle;
 import android.text.SpannableString;
 import android.text.style.ForegroundColorSpan;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.View.AccessibilityDelegate;
 import android.view.View.OnClickListener;
 import android.view.ViewGroup;
 import android.view.accessibility.AccessibilityEvent;
 import android.view.accessibility.AccessibilityNodeInfo;
 import android.widget.BaseAdapter;
 import android.widget.RadioButton;
 import android.widget.TextView;

 import org.chromium.base.ApiCompatibilityUtils;
 import org.chromium.base.ContextUtils;
 import org.chromium.base.VisibleForTesting;
 import org.chromium.base.metrics.RecordUserAction;
 import org.chromium.chrome.R;
 import org.chromium.chrome.browser.locale.LocaleManager;
 import org.chromium.chrome.browser.omnibox.geo.GeolocationHeader;
 import org.chromium.chrome.browser.preferences.website.ContentSetting;
 import org.chromium.chrome.browser.preferences.website.GeolocationInfo;
 import org.chromium.chrome.browser.preferences.website.SingleWebsitePreferences;
 import org.chromium.chrome.browser.preferences.website.WebsitePreferenceBridge;
 import org.chromium.chrome.browser.search_engines.TemplateUrlService;
 import org.chromium.chrome.browser.search_engines.TemplateUrlService.LoadListener;
 import org.chromium.chrome.browser.search_engines.TemplateUrlService.TemplateUrl;
 import org.chromium.components.location.LocationUtils;
 import org.chromium.ui.text.SpanApplier;
 import org.chromium.ui.text.SpanApplier.SpanInfo;

 import java.util.ArrayList;
 import java.util.List;

 /**
 * A custom adapter for listing search engines.
 */
 public class SearchEngineAdapter extends BaseAdapter implements LoadListener, OnClickListener {
     private static final int VIEW_TYPE_ITEM = 0;
     private static final int VIEW_TYPE_DIVIDER = 1;
     private static final int VIEW_TYPE_COUNT = 2;

     /** The current context. */
     private Context mContext;

     /** The layout inflater to use for the custom views. */
     private LayoutInflater mLayoutInflater;

     /** The list of prepopluated and default search engines. */
     private List<TemplateUrl> mPrepopulatedSearchEngines = new ArrayList<>();

     /** The list of recently visited search engines. */
     private List<TemplateUrl> mRecentSearchEngines = new ArrayList<>();

     /**
      * The position (index into mPrepopulatedSearchEngines) of the currently selected search engine.
      * Can be -1 if current search engine is managed and set to something other than the
      * pre-populated values.
      */
     private int mSelectedSearchEnginePosition = -1;

     /** The position of the default search engine before user's action. */
     private int mInitialEnginePosition = -1;

     /**
      * Construct a SearchEngineAdapter.
      * @param context The current context.
      */
     public SearchEngineAdapter(Context context) {
         mContext = context;
         mLayoutInflater = (LayoutInflater) mContext.getSystemService(
                 Context.LAYOUT_INFLATER_SERVICE);

         initEntries();
     }

     @VisibleForTesting
     String getValueForTesting() {
         return Integer.toString(mSelectedSearchEnginePosition);
     }

     @VisibleForTesting
     String setValueForTesting(String value) {
         return searchEngineSelected(Integer.parseInt(value));
     }

     @VisibleForTesting
     String getKeywordForTesting(int index) {
         return toKeyword(index);
     }

     /**
      * Initialize the search engine list.
      */
     private void initEntries() {
         TemplateUrlService templateUrlService = TemplateUrlService.getInstance();
         if (!templateUrlService.isLoaded()) {
             templateUrlService.registerLoadListener(this);
             templateUrlService.load();
             return;  // Flow continues in onTemplateUrlServiceLoaded below.
         }

         int defaultSearchEngineIndex = templateUrlService.getDefaultSearchEngineIndex();
         for (TemplateUrl templateUrl : templateUrlService.getSearchEngines()) {
             if (templateUrl.getType() == TemplateUrlService.TYPE_PREPOPULATED
                     || templateUrl.getType() == TemplateUrlService.TYPE_DEFAULT) {
                 mPrepopulatedSearchEngines.add(templateUrl);
             } else {
                 mRecentSearchEngines.add(templateUrl);
             }
         }

         // Convert the TemplateUrl index into an index of mSearchEngines.
         mSelectedSearchEnginePosition = -1;
         for (int i = 0; i < mPrepopulatedSearchEngines.size(); ++i) {
             if (mPrepopulatedSearchEngines.get(i).getIndex() == defaultSearchEngineIndex) {
                 mSelectedSearchEnginePosition = i;
             }
         }

         for (int i = 0; i < mRecentSearchEngines.size(); ++i) {
             if (mRecentSearchEngines.get(i).getIndex() == defaultSearchEngineIndex) {
                 // Add one to offset the title for the recent search engine list.
                 mSelectedSearchEnginePosition = i + computeStartIndexForRecentSearchEngines();
             }
         }

         mInitialEnginePosition = mSelectedSearchEnginePosition;

         TemplateUrlService.getInstance().setSearchEngine(toKeyword(mSelectedSearchEnginePosition));
     }

     private String toKeyword(int position) {
         if (position < mPrepopulatedSearchEngines.size()) {
             return mPrepopulatedSearchEngines.get(position).getKeyword();
         } else {
             position -= computeStartIndexForRecentSearchEngines();
             return mRecentSearchEngines.get(position).getKeyword();
         }
     }

     // BaseAdapter:

     @Override
     public int getCount() {
         return mPrepopulatedSearchEngines == null
                 ? 0
                 : mPrepopulatedSearchEngines.size() + mRecentSearchEngines.size() + 1;
     }

     @Override
     public int getViewTypeCount() {
         return VIEW_TYPE_COUNT;
     }

     @Override
     public Object getItem(int pos) {
         if (pos < mPrepopulatedSearchEngines.size()) {
             return mPrepopulatedSearchEngines.get(pos);
         } else if (pos > mPrepopulatedSearchEngines.size()) {
             pos -= computeStartIndexForRecentSearchEngines();
             return mRecentSearchEngines.get(pos);
         }
         return null;
     }

     @Override
     public long getItemId(int position) {
         return position;
     }

     @Override
     public int getItemViewType(int position) {
         if (position == mPrepopulatedSearchEngines.size()) {
             return VIEW_TYPE_DIVIDER;
         } else {
             return VIEW_TYPE_ITEM;
         }
     }

     @Override
     public View getView(int position, View convertView, ViewGroup parent) {
         View view = convertView;
         TemplateUrl templateUrl = (TemplateUrl) getItem(position);
         int itemViewType = getItemViewType(position);
         if (convertView == null) {
             view = mLayoutInflater.inflate(itemViewType == VIEW_TYPE_DIVIDER
                             ? R.layout.search_engine_recent_title
                             : R.layout.search_engine,
                     null);
         }
         if (itemViewType == VIEW_TYPE_DIVIDER) {
             return view;
         }

         view.setOnClickListener(this);
         view.setTag(position);

         // TODO(finnur): There's a tinting bug in the AppCompat lib (see http://crbug.com/474695),
         // which causes the first radiobox to always appear selected, even if it is not. It is being
         // addressed, but in the meantime we should use the native RadioButton instead.
         RadioButton radioButton = (RadioButton) view.findViewById(R.id.radiobutton);
         // On Lollipop this removes the redundant animation ring on selection but on older versions
         // it would cause the radio button to disappear.
         // TODO(finnur): Remove the encompassing if statement once we go back to using the AppCompat
         // control.
         final boolean selected = position == mSelectedSearchEnginePosition;
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
             radioButton.setBackgroundResource(0);
         }
         radioButton.setChecked(selected);

         TextView description = (TextView) view.findViewById(R.id.name);
         Resources resources = mContext.getResources();
         description.setText(templateUrl.getShortName());

         TextView url = (TextView) view.findViewById(R.id.url);
         url.setText(templateUrl.getUrl());
         if (templateUrl.getType() == TemplateUrlService.TYPE_PREPOPULATED
                 || templateUrl.getType() == TemplateUrlService.TYPE_DEFAULT
                 || templateUrl.getUrl().length() == 0) {
             url.setVisibility(View.GONE);
         }

         // To improve the explore-by-touch experience, the radio button is hidden from accessibility
         // and instead, "checked" or "not checked" is read along with the search engine's name, e.g.
         // "google.com checked" or "google.com not checked".
         radioButton.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_NO);
         description.setAccessibilityDelegate(new AccessibilityDelegate() {
             @Override
             public void onInitializeAccessibilityEvent(View host, AccessibilityEvent event) {
                 super.onInitializeAccessibilityEvent(host, event);
                 event.setChecked(selected);
             }

             @Override
             public void onInitializeAccessibilityNodeInfo(View host, AccessibilityNodeInfo info) {
                 super.onInitializeAccessibilityNodeInfo(host, info);
                 info.setCheckable(true);
                 info.setChecked(selected);
             }
         });

         TextView link = (TextView) view.findViewById(R.id.location_permission);
         link.setVisibility(selected ? View.VISIBLE : View.GONE);
         if (selected) {
             if (getLocationPermissionType(position, true) == ContentSetting.ASK) {
                 link.setVisibility(View.GONE);
             } else {
                 ForegroundColorSpan linkSpan = new ForegroundColorSpan(
                         ApiCompatibilityUtils.getColor(resources, R.color.pref_accent_color));
                 if (LocationUtils.getInstance().isSystemLocationSettingEnabled()) {
                     String message = mContext.getString(
                             locationEnabled(position, true)
                             ? R.string.search_engine_location_allowed
                             : R.string.search_engine_location_blocked);
                     SpannableString messageWithLink = new SpannableString(message);
                     messageWithLink.setSpan(linkSpan, 0, messageWithLink.length(), 0);
                     link.setText(messageWithLink);
                 } else {
                     link.setText(SpanApplier.applySpans(
                             mContext.getString(R.string.android_location_off),
                             new SpanInfo("<link>", "</link>", linkSpan)));
                 }

                 link.setOnClickListener(this);
             }
         }

         return view;
     }

     // TemplateUrlService.LoadListener

     @Override
     public void onTemplateUrlServiceLoaded() {
         TemplateUrlService.getInstance().unregisterLoadListener(this);
         initEntries();
         notifyDataSetChanged();
     }

     // OnClickListener:

     @Override
     public void onClick(View view) {
         if (view.getTag() == null) {
             onLocationLinkClicked();
         } else {
             searchEngineSelected((int) view.getTag());
         }
     }

     private String searchEngineSelected(int position) {
         // First clean up any automatically added permissions (if any) for the previously selected
         // search engine.
         SharedPreferences sharedPreferences =
                 ContextUtils.getAppSharedPreferences();
         if (sharedPreferences.getBoolean(PrefServiceBridge.LOCATION_AUTO_ALLOWED, false)) {
             if (locationEnabled(mSelectedSearchEnginePosition, false)) {
                 String url = TemplateUrlService.getInstance().getSearchEngineUrlFromTemplateUrl(
                         toKeyword(mSelectedSearchEnginePosition));
                 WebsitePreferenceBridge.nativeSetGeolocationSettingForOrigin(
                         url, url, ContentSetting.DEFAULT.toInt(), false);
             }
             sharedPreferences.edit().remove(PrefServiceBridge.LOCATION_AUTO_ALLOWED).apply();
         }

         // Record the change in search engine.
         mSelectedSearchEnginePosition = position;

         String keyword = toKeyword(mSelectedSearchEnginePosition);
         TemplateUrlService.getInstance().setSearchEngine(keyword);

         // If the user has manually set the default search engine, disable auto switching.
         boolean manualSwitch = mSelectedSearchEnginePosition != mInitialEnginePosition;
         if (manualSwitch) {
             RecordUserAction.record("SearchEngine_ManualChange");
             LocaleManager.getInstance().setSearchEngineAutoSwitch(false);
         }
         notifyDataSetChanged();
         return keyword;
     }

     private void onLocationLinkClicked() {
         if (!LocationUtils.getInstance().isSystemLocationSettingEnabled()) {
             mContext.startActivity(LocationUtils.getInstance().getSystemLocationSettingsIntent());
         } else {
             Intent settingsIntent = PreferencesLauncher.createIntentForSettingsPage(
                     mContext, SingleWebsitePreferences.class.getName());
             String url = TemplateUrlService.getInstance().getSearchEngineUrlFromTemplateUrl(
                     toKeyword(mSelectedSearchEnginePosition));
             Bundle fragmentArgs = SingleWebsitePreferences.createFragmentArgsForSite(url);
             fragmentArgs.putBoolean(SingleWebsitePreferences.EXTRA_LOCATION,
                     locationEnabled(mSelectedSearchEnginePosition, true));
             settingsIntent.putExtra(Preferences.EXTRA_SHOW_FRAGMENT_ARGUMENTS, fragmentArgs);
             mContext.startActivity(settingsIntent);
         }
     }

     private ContentSetting getLocationPermissionType(int position, boolean checkGeoHeader) {
         if (position == -1) {
             return ContentSetting.BLOCK;
         }

         String url = TemplateUrlService.getInstance().getSearchEngineUrlFromTemplateUrl(
                 toKeyword(position));
         GeolocationInfo locationSettings = new GeolocationInfo(url, null, false);
         ContentSetting locationPermission = locationSettings.getContentSetting();
         if (locationPermission == ContentSetting.ASK) {
             // Handle the case where the geoHeader being sent when no permission has been specified.
             if (checkGeoHeader && GeolocationHeader.isGeoHeaderEnabledForUrl(
                     mContext, url, false)) {
                 locationPermission = ContentSetting.ALLOW;
             }
         }
         return locationPermission;
     }

     private boolean locationEnabled(int position, boolean checkGeoHeader) {
         return getLocationPermissionType(position, checkGeoHeader) == ContentSetting.ALLOW;
     }

     private int computeStartIndexForRecentSearchEngines() {
         return mPrepopulatedSearchEngines.size() + 1;
     }
 }
	// Copyright 2015 The Chromium Authors. All rights reserved.
	// Use of this source code is governed by a BSD-style license that can be
	// found in the LICENSE file.

	package org.chromium.chrome.browser.preferences;

	import android.content.Context;
	import android.content.Intent;
	import android.content.SharedPreferences;
	import android.content.res.Resources;
	import android.os.Build;
	import android.os.Bundle;
	import android.text.SpannableString;
	import android.text.style.ForegroundColorSpan;
	import android.view.LayoutInflater;
	import android.view.View;
	import android.view.View.AccessibilityDelegate;
	import android.view.View.OnClickListener;
	import android.view.ViewGroup;
	import android.view.accessibility.AccessibilityEvent;
	import android.view.accessibility.AccessibilityNodeInfo;
	import android.widget.BaseAdapter;
	import android.widget.RadioButton;
	import android.widget.TextView;

	import org.chromium.base.ApiCompatibilityUtils;
	import org.chromium.base.ContextUtils;
	import org.chromium.base.VisibleForTesting;
	import org.chromium.base.metrics.RecordUserAction;
	import org.chromium.chrome.R;
	import org.chromium.chrome.browser.locale.LocaleManager;
	import org.chromium.chrome.browser.omnibox.geo.GeolocationHeader;
	import org.chromium.chrome.browser.preferences.website.ContentSetting;
	import org.chromium.chrome.browser.preferences.website.GeolocationInfo;
	import org.chromium.chrome.browser.preferences.website.SingleWebsitePreferences;
	import org.chromium.chrome.browser.preferences.website.WebsitePreferenceBridge;
	import org.chromium.chrome.browser.search_engines.TemplateUrlService;
	import org.chromium.chrome.browser.search_engines.TemplateUrlService.LoadListener;
	import org.chromium.chrome.browser.search_engines.TemplateUrlService.TemplateUrl;
	import org.chromium.components.location.LocationUtils;
	import org.chromium.ui.text.SpanApplier;
	import org.chromium.ui.text.SpanApplier.SpanInfo;

	import java.util.ArrayList;
	import java.util.List;

	/**
	* A custom adapter for listing search engines.
	*/
	public class SearchEngineAdapter extends BaseAdapter implements LoadListener, OnClickListener {
	private static final int VIEW_TYPE_ITEM = 0;
	private static final int VIEW_TYPE_DIVIDER = 1;
	private static final int VIEW_TYPE_COUNT = 2;

	/** The current context. */
	private Context mContext;

	/** The layout inflater to use for the custom views. */
	private LayoutInflater mLayoutInflater;

	/** The list of prepopluated and default search engines. */
	private List<TemplateUrl> mPrepopulatedSearchEngines = new ArrayList<>();

	/** The list of recently visited search engines. */
	private List<TemplateUrl> mRecentSearchEngines = new ArrayList<>();

	/**
	* The position (index into mPrepopulatedSearchEngines) of the currently selected search engine.
	* Can be -1 if current search engine is managed and set to something other than the
	* pre-populated values.
	*/
	private int mSelectedSearchEnginePosition = -1;

	/** The position of the default search engine before user's action. */
	private int mInitialEnginePosition = -1;

	/**
	* Construct a SearchEngineAdapter.
	* @param context The current context.
	*/
	public SearchEngineAdapter(Context context) {
	mContext = context;
	mLayoutInflater = (LayoutInflater) mContext.getSystemService(
	Context.LAYOUT_INFLATER_SERVICE);

	initEntries();
	}

	@VisibleForTesting
	String getValueForTesting() {
	return Integer.toString(mSelectedSearchEnginePosition);
	}

	@VisibleForTesting
	String setValueForTesting(String value) {
	return searchEngineSelected(Integer.parseInt(value));
	}

	@VisibleForTesting
	String getKeywordForTesting(int index) {
	return toKeyword(index);
	}

	/**
	* Initialize the search engine list.
	*/
	private void initEntries() {
	TemplateUrlService templateUrlService = TemplateUrlService.getInstance();
	if (!templateUrlService.isLoaded()) {
	templateUrlService.registerLoadListener(this);
	templateUrlService.load();
	return; // Flow continues in onTemplateUrlServiceLoaded below.
	}

	int defaultSearchEngineIndex = templateUrlService.getDefaultSearchEngineIndex();
	for (TemplateUrl templateUrl : templateUrlService.getSearchEngines()) {
	if (templateUrl.getType() == TemplateUrlService.TYPE_PREPOPULATED
	\|\| templateUrl.getType() == TemplateUrlService.TYPE_DEFAULT) {
	mPrepopulatedSearchEngines.add(templateUrl);
	} else {
	mRecentSearchEngines.add(templateUrl);
	}
	}

	// Convert the TemplateUrl index into an index of mSearchEngines.
	mSelectedSearchEnginePosition = -1;
	for (int i = 0; i < mPrepopulatedSearchEngines.size(); ++i) {
	if (mPrepopulatedSearchEngines.get(i).getIndex() == defaultSearchEngineIndex) {
	mSelectedSearchEnginePosition = i;
	}
	}

	for (int i = 0; i < mRecentSearchEngines.size(); ++i) {
	if (mRecentSearchEngines.get(i).getIndex() == defaultSearchEngineIndex) {
	// Add one to offset the title for the recent search engine list.
	mSelectedSearchEnginePosition = i + computeStartIndexForRecentSearchEngines();
	}
	}

	mInitialEnginePosition = mSelectedSearchEnginePosition;

	TemplateUrlService.getInstance().setSearchEngine(toKeyword(mSelectedSearchEnginePosition));
	}

	private String toKeyword(int position) {
	if (position < mPrepopulatedSearchEngines.size()) {
	return mPrepopulatedSearchEngines.get(position).getKeyword();
	} else {
	position -= computeStartIndexForRecentSearchEngines();
	return mRecentSearchEngines.get(position).getKeyword();
	}
	}

	// BaseAdapter:

	@Override
	public int getCount() {
	return mPrepopulatedSearchEngines == null
	? 0
	: mPrepopulatedSearchEngines.size() + mRecentSearchEngines.size() + 1;
	}

	@Override
	public int getViewTypeCount() {
	return VIEW_TYPE_COUNT;
	}

	@Override
	public Object getItem(int pos) {
	if (pos < mPrepopulatedSearchEngines.size()) {
	return mPrepopulatedSearchEngines.get(pos);
	} else if (pos > mPrepopulatedSearchEngines.size()) {
	pos -= computeStartIndexForRecentSearchEngines();
	return mRecentSearchEngines.get(pos);
	}
	return null;
	}

	@Override
	public long getItemId(int position) {
	return position;
	}

	@Override
	public int getItemViewType(int position) {
	if (position == mPrepopulatedSearchEngines.size()) {
	return VIEW_TYPE_DIVIDER;
	} else {
	return VIEW_TYPE_ITEM;
	}
	}

	@Override
	public View getView(int position, View convertView, ViewGroup parent) {
	View view = convertView;
	TemplateUrl templateUrl = (TemplateUrl) getItem(position);
	int itemViewType = getItemViewType(position);
	if (convertView == null) {
	view = mLayoutInflater.inflate(itemViewType == VIEW_TYPE_DIVIDER
	? R.layout.search_engine_recent_title
	: R.layout.search_engine,
	null);
	}
	if (itemViewType == VIEW_TYPE_DIVIDER) {
	return view;
	}

	view.setOnClickListener(this);
	view.setTag(position);

	// TODO(finnur): There's a tinting bug in the AppCompat lib (see http://crbug.com/474695),
	// which causes the first radiobox to always appear selected, even if it is not. It is being
	// addressed, but in the meantime we should use the native RadioButton instead.
	RadioButton radioButton = (RadioButton) view.findViewById(R.id.radiobutton);
	// On Lollipop this removes the redundant animation ring on selection but on older versions
	// it would cause the radio button to disappear.
	// TODO(finnur): Remove the encompassing if statement once we go back to using the AppCompat
	// control.
	final boolean selected = position == mSelectedSearchEnginePosition;
	if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
	radioButton.setBackgroundResource(0);
	}
	radioButton.setChecked(selected);

	TextView description = (TextView) view.findViewById(R.id.name);
	Resources resources = mContext.getResources();
	description.setText(templateUrl.getShortName());

	TextView url = (TextView) view.findViewById(R.id.url);
	url.setText(templateUrl.getUrl());
	if (templateUrl.getType() == TemplateUrlService.TYPE_PREPOPULATED
	\|\| templateUrl.getType() == TemplateUrlService.TYPE_DEFAULT
	\|\| templateUrl.getUrl().length() == 0) {
	url.setVisibility(View.GONE);
	}

	// To improve the explore-by-touch experience, the radio button is hidden from accessibility
	// and instead, "checked" or "not checked" is read along with the search engine's name, e.g.
	// "google.com checked" or "google.com not checked".
	radioButton.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_NO);
	description.setAccessibilityDelegate(new AccessibilityDelegate() {
	@Override
	public void onInitializeAccessibilityEvent(View host, AccessibilityEvent event) {
	super.onInitializeAccessibilityEvent(host, event);
	event.setChecked(selected);
	}

	@Override
	public void onInitializeAccessibilityNodeInfo(View host, AccessibilityNodeInfo info) {
	super.onInitializeAccessibilityNodeInfo(host, info);
	info.setCheckable(true);
	info.setChecked(selected);
	}
	});

	TextView link = (TextView) view.findViewById(R.id.location_permission);
	link.setVisibility(selected ? View.VISIBLE : View.GONE);
	if (selected) {
	if (getLocationPermissionType(position, true) == ContentSetting.ASK) {
	link.setVisibility(View.GONE);
	} else {
	ForegroundColorSpan linkSpan = new ForegroundColorSpan(
	ApiCompatibilityUtils.getColor(resources, R.color.pref_accent_color));
	if (LocationUtils.getInstance().isSystemLocationSettingEnabled()) {
	String message = mContext.getString(
	locationEnabled(position, true)
	? R.string.search_engine_location_allowed
	: R.string.search_engine_location_blocked);
	SpannableString messageWithLink = new SpannableString(message);
	messageWithLink.setSpan(linkSpan, 0, messageWithLink.length(), 0);
	link.setText(messageWithLink);
	} else {
	link.setText(SpanApplier.applySpans(
	mContext.getString(R.string.android_location_off),
	new SpanInfo("<link>", "</link>", linkSpan)));
	}

	link.setOnClickListener(this);
	}
	}

	return view;
	}

	// TemplateUrlService.LoadListener

	@Override
	public void onTemplateUrlServiceLoaded() {
	TemplateUrlService.getInstance().unregisterLoadListener(this);
	initEntries();
	notifyDataSetChanged();
	}

	// OnClickListener:

	@Override
	public void onClick(View view) {
	if (view.getTag() == null) {
	onLocationLinkClicked();
	} else {
	searchEngineSelected((int) view.getTag());
	}
	}

	private String searchEngineSelected(int position) {
	// First clean up any automatically added permissions (if any) for the previously selected
	// search engine.
	SharedPreferences sharedPreferences =
	ContextUtils.getAppSharedPreferences();
	if (sharedPreferences.getBoolean(PrefServiceBridge.LOCATION_AUTO_ALLOWED, false)) {
	if (locationEnabled(mSelectedSearchEnginePosition, false)) {
	String url = TemplateUrlService.getInstance().getSearchEngineUrlFromTemplateUrl(
	toKeyword(mSelectedSearchEnginePosition));
	WebsitePreferenceBridge.nativeSetGeolocationSettingForOrigin(
	url, url, ContentSetting.DEFAULT.toInt(), false);
	}
	sharedPreferences.edit().remove(PrefServiceBridge.LOCATION_AUTO_ALLOWED).apply();
	}

	// Record the change in search engine.
	mSelectedSearchEnginePosition = position;

	String keyword = toKeyword(mSelectedSearchEnginePosition);
	TemplateUrlService.getInstance().setSearchEngine(keyword);

	// If the user has manually set the default search engine, disable auto switching.
	boolean manualSwitch = mSelectedSearchEnginePosition != mInitialEnginePosition;
	if (manualSwitch) {
	RecordUserAction.record("SearchEngine_ManualChange");
	LocaleManager.getInstance().setSearchEngineAutoSwitch(false);
	}
	notifyDataSetChanged();
	return keyword;
	}

	private void onLocationLinkClicked() {
	if (!LocationUtils.getInstance().isSystemLocationSettingEnabled()) {
	mContext.startActivity(LocationUtils.getInstance().getSystemLocationSettingsIntent());
	} else {
	Intent settingsIntent = PreferencesLauncher.createIntentForSettingsPage(
	mContext, SingleWebsitePreferences.class.getName());
	String url = TemplateUrlService.getInstance().getSearchEngineUrlFromTemplateUrl(
	toKeyword(mSelectedSearchEnginePosition));
	Bundle fragmentArgs = SingleWebsitePreferences.createFragmentArgsForSite(url);
	fragmentArgs.putBoolean(SingleWebsitePreferences.EXTRA_LOCATION,
	locationEnabled(mSelectedSearchEnginePosition, true));
	settingsIntent.putExtra(Preferences.EXTRA_SHOW_FRAGMENT_ARGUMENTS, fragmentArgs);
	mContext.startActivity(settingsIntent);
	}
	}

	private ContentSetting getLocationPermissionType(int position, boolean checkGeoHeader) {
	if (position == -1) {
	return ContentSetting.BLOCK;
	}

	String url = TemplateUrlService.getInstance().getSearchEngineUrlFromTemplateUrl(
	toKeyword(position));
	GeolocationInfo locationSettings = new GeolocationInfo(url, null, false);
	ContentSetting locationPermission = locationSettings.getContentSetting();
	if (locationPermission == ContentSetting.ASK) {
	// Handle the case where the geoHeader being sent when no permission has been specified.
	if (checkGeoHeader && GeolocationHeader.isGeoHeaderEnabledForUrl(
	mContext, url, false)) {
	locationPermission = ContentSetting.ALLOW;
	}
	}
	return locationPermission;
	}

	private boolean locationEnabled(int position, boolean checkGeoHeader) {
	return getLocationPermissionType(position, checkGeoHeader) == ContentSetting.ALLOW;
	}

	private int computeStartIndexForRecentSearchEngines() {
	return mPrepopulatedSearchEngines.size() + 1;
	}
	}