/*
* Copyright (C) 2014 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.dashboard;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.content.res.Resources;
import android.database.Cursor;
import android.graphics.drawable.Drawable;
import android.os.AsyncTask;
import android.os.Bundle;
import android.text.TextUtils;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.SearchView;
import android.widget.TextView;
import com.android.internal.logging.MetricsLogger;
import com.android.internal.logging.MetricsProto.MetricsEvent;
import com.android.settings.InstrumentedFragment;
import com.android.settings.R;
import com.android.settings.SettingsActivity;
import com.android.settings.Utils;
import com.android.settings.search.Index;
import java.util.HashMap;
public class SearchResultsSummary extends InstrumentedFragment {
private static final String LOG_TAG = "SearchResultsSummary";
private static final String EMPTY_QUERY = "";
private static char ELLIPSIS = '\u2026';
private static final String SAVE_KEY_SHOW_RESULTS = ":settings:show_results";
private SearchView mSearchView;
private ListView mResultsListView;
private SearchResultsAdapter mResultsAdapter;
private UpdateSearchResultsTask mUpdateSearchResultsTask;
private ListView mSuggestionsListView;
private SuggestionsAdapter mSuggestionsAdapter;
private UpdateSuggestionsTask mUpdateSuggestionsTask;
private ViewGroup mLayoutSuggestions;
private ViewGroup mLayoutResults;
private String mQuery;
private boolean mShowResults;
/**
* A basic AsyncTask for updating the query results cursor
*/
private class UpdateSearchResultsTask extends AsyncTask<String, Void, Cursor> {
@Override
protected Cursor doInBackground(String... params) {
return Index.getInstance(getActivity()).search(params[0]);
}
@Override
protected void onPostExecute(Cursor cursor) {
if (!isCancelled()) {
MetricsLogger.action(getContext(), MetricsEvent.ACTION_SEARCH_RESULTS,
cursor.getCount());
setResultsCursor(cursor);
setResultsVisibility(cursor.getCount() > 0);
} else if (cursor != null) {
cursor.close();
}
}
}
/**
* A basic AsyncTask for updating the suggestions cursor
*/
private class UpdateSuggestionsTask extends AsyncTask<String, Void, Cursor> {
@Override
protected Cursor doInBackground(String... params) {
return Index.getInstance(getActivity()).getSuggestions(params[0]);
}
@Override
protected void onPostExecute(Cursor cursor) {
if (!isCancelled()) {
setSuggestionsCursor(cursor);
setSuggestionsVisibility(cursor.getCount() > 0);
} else if (cursor != null) {
cursor.close();
}
}
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mResultsAdapter = new SearchResultsAdapter(getActivity());
mSuggestionsAdapter = new SuggestionsAdapter(getActivity());
if (savedInstanceState != null) {
mShowResults = savedInstanceState.getBoolean(SAVE_KEY_SHOW_RESULTS);
}
}
@Override
public void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
outState.putBoolean(SAVE_KEY_SHOW_RESULTS, mShowResults);
}
@Override
public void onStop() {
super.onStop();
clearSuggestions();
clearResults();
}
@Override
public void onDestroy() {
mResultsListView = null;
mResultsAdapter = null;
mUpdateSearchResultsTask = null;
mSuggestionsListView = null;
mSuggestionsAdapter = null;
mUpdateSuggestionsTask = null;
mSearchView = null;
super.onDestroy();
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
final View view = inflater.inflate(R.layout.search_panel, container, false);
mLayoutSuggestions = (ViewGroup) view.findViewById(R.id.layout_suggestions);
mLayoutResults = (ViewGroup) view.findViewById(R.id.layout_results);
mResultsListView = (ListView) view.findViewById(R.id.list_results);
mResultsListView.setAdapter(mResultsAdapter);
mResultsListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
// We have a header, so we need to decrement the position by one
position--;
// Some Monkeys could create a case where they were probably clicking on the
// List Header and thus the position passed was "0" and then by decrement was "-1"
if (position < 0) {
return;
}
final Cursor cursor = mResultsAdapter.mCursor;
cursor.moveToPosition(position);
final String className = cursor.getString(Index.COLUMN_INDEX_CLASS_NAME);
final String screenTitle = cursor.getString(Index.COLUMN_INDEX_SCREEN_TITLE);
final String action = cursor.getString(Index.COLUMN_INDEX_INTENT_ACTION);
final String key = cursor.getString(Index.COLUMN_INDEX_KEY);
final SettingsActivity sa = (SettingsActivity) getActivity();
sa.needToRevertToInitialFragment();
if (TextUtils.isEmpty(action)) {
Bundle args = new Bundle();
args.putString(SettingsActivity.EXTRA_FRAGMENT_ARG_KEY, key);
Utils.startWithFragment(sa, className, args, null, 0, -1, screenTitle);
} else {
final Intent intent = new Intent(action);
final String targetPackage = cursor.getString(
Index.COLUMN_INDEX_INTENT_ACTION_TARGET_PACKAGE);
final String targetClass = cursor.getString(
Index.COLUMN_INDEX_INTENT_ACTION_TARGET_CLASS);
if (!TextUtils.isEmpty(targetPackage) && !TextUtils.isEmpty(targetClass)) {
final ComponentName component =
new ComponentName(targetPackage, targetClass);
intent.setComponent(component);
}
intent.putExtra(SettingsActivity.EXTRA_FRAGMENT_ARG_KEY, key);
sa.startActivity(intent);
}
saveQueryToDatabase();
}
});
mResultsListView.addHeaderView(
LayoutInflater.from(getActivity()).inflate(
R.layout.search_panel_results_header, mResultsListView, false),
null, false);
mSuggestionsListView = (ListView) view.findViewById(R.id.list_suggestions);
mSuggestionsListView.setAdapter(mSuggestionsAdapter);
mSuggestionsListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
// We have a header, so we need to decrement the position by one
position--;
// Some Monkeys could create a case where they were probably clicking on the
// List Header and thus the position passed was "0" and then by decrement was "-1"
if (position < 0) {
return;
}
final Cursor cursor = mSuggestionsAdapter.mCursor;
cursor.moveToPosition(position);
mShowResults = true;
mQuery = cursor.getString(0);
mSearchView.setQuery(mQuery, false);
}
});
mSuggestionsListView.addHeaderView(
LayoutInflater.from(getActivity()).inflate(
R.layout.search_panel_suggestions_header, mSuggestionsListView, false),
null, false);
return view;
}
@Override
protected int getMetricsCategory() {
return MetricsEvent.DASHBOARD_SEARCH_RESULTS;
}
@Override
public void onResume() {
super.onResume();
if (!mShowResults) {
showSomeSuggestions();
}
}
public void setSearchView(SearchView searchView) {
mSearchView = searchView;
}
private void setSuggestionsVisibility(boolean visible) {
if (mLayoutSuggestions != null) {
mLayoutSuggestions.setVisibility(visible ? View.VISIBLE : View.GONE);
}
}
private void setResultsVisibility(boolean visible) {
if (mLayoutResults != null) {
mLayoutResults.setVisibility(visible ? View.VISIBLE : View.GONE);
}
}
private void saveQueryToDatabase() {
Index.getInstance(getActivity()).addSavedQuery(mQuery);
}
public boolean onQueryTextSubmit(String query) {
mQuery = getFilteredQueryString(query);
mShowResults = true;
setSuggestionsVisibility(false);
updateSearchResults();
saveQueryToDatabase();
return false;
}
public boolean onQueryTextChange(String query) {
final String newQuery = getFilteredQueryString(query);
mQuery = newQuery;
if (TextUtils.isEmpty(mQuery)) {
mShowResults = false;
setResultsVisibility(false);
updateSuggestions();
} else {
mShowResults = true;
setSuggestionsVisibility(false);
updateSearchResults();
}
return true;
}
public void showSomeSuggestions() {
setResultsVisibility(false);
mQuery = EMPTY_QUERY;
updateSuggestions();
}
private void clearSuggestions() {
if (mUpdateSuggestionsTask != null) {
mUpdateSuggestionsTask.cancel(false);
mUpdateSuggestionsTask = null;
}
setSuggestionsCursor(null);
setSuggestionsVisibility(false);
}
private void setSuggestionsCursor(Cursor cursor) {
if (mSuggestionsAdapter == null) {
return;
}
Cursor oldCursor = mSuggestionsAdapter.swapCursor(cursor);
if (oldCursor != null) {
oldCursor.close();
}
}
private void clearResults() {
if (mUpdateSearchResultsTask != null) {
mUpdateSearchResultsTask.cancel(false);
mUpdateSearchResultsTask = null;
}
setResultsCursor(null);
setResultsVisibility(false);
}
private void setResultsCursor(Cursor cursor) {
if (mResultsAdapter == null) {
return;
}
Cursor oldCursor = mResultsAdapter.swapCursor(cursor);
if (oldCursor != null) {
oldCursor.close();
}
}
private String getFilteredQueryString(CharSequence query) {
if (query == null) {
return null;
}
final StringBuilder filtered = new StringBuilder();
for (int n = 0; n < query.length(); n++) {
char c = query.charAt(n);
if (!Character.isLetterOrDigit(c) && !Character.isSpaceChar(c)) {
continue;
}
filtered.append(c);
}
return filtered.toString();
}
private void clearAllTasks() {
if (mUpdateSearchResultsTask != null) {
mUpdateSearchResultsTask.cancel(false);
mUpdateSearchResultsTask = null;
}
if (mUpdateSuggestionsTask != null) {
mUpdateSuggestionsTask.cancel(false);
mUpdateSuggestionsTask = null;
}
}
private void updateSuggestions() {
clearAllTasks();
if (mQuery == null) {
setSuggestionsCursor(null);
} else {
mUpdateSuggestionsTask = new UpdateSuggestionsTask();
mUpdateSuggestionsTask.execute(mQuery);
}
}
private void updateSearchResults() {
clearAllTasks();
if (TextUtils.isEmpty(mQuery)) {
setResultsVisibility(false);
setResultsCursor(null);
} else {
mUpdateSearchResultsTask = new UpdateSearchResultsTask();
mUpdateSearchResultsTask.execute(mQuery);
}
}
private static class SuggestionItem {
public String query;
public SuggestionItem(String query) {
this.query = query;
}
}
private static class SuggestionsAdapter extends BaseAdapter {
private static final int COLUMN_SUGGESTION_QUERY = 0;
private static final int COLUMN_SUGGESTION_TIMESTAMP = 1;
private Context mContext;
private Cursor mCursor;
private LayoutInflater mInflater;
private boolean mDataValid = false;
public SuggestionsAdapter(Context context) {
mContext = context;
mInflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
mDataValid = false;
}
public Cursor swapCursor(Cursor newCursor) {
if (newCursor == mCursor) {
return null;
}
Cursor oldCursor = mCursor;
mCursor = newCursor;
if (newCursor != null) {
mDataValid = true;
notifyDataSetChanged();
} else {
mDataValid = false;
notifyDataSetInvalidated();
}
return oldCursor;
}
@Override
public int getCount() {
if (!mDataValid || mCursor == null || mCursor.isClosed()) return 0;
return mCursor.getCount();
}
@Override
public Object getItem(int position) {
if (mDataValid && mCursor.moveToPosition(position)) {
final String query = mCursor.getString(COLUMN_SUGGESTION_QUERY);
return new SuggestionItem(query);
}
return null;
}
@Override
public long getItemId(int position) {
return 0;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
if (!mDataValid && convertView == null) {
throw new IllegalStateException(
"this should only be called when the cursor is valid");
}
if (!mCursor.moveToPosition(position)) {
throw new IllegalStateException("couldn't move cursor to position " + position);
}
View view;
if (convertView == null) {
view = mInflater.inflate(R.layout.search_suggestion_item, parent, false);
} else {
view = convertView;
}
TextView query = (TextView) view.findViewById(R.id.title);
SuggestionItem item = (SuggestionItem) getItem(position);
query.setText(item.query);
return view;
}
}
private static class SearchResult {
public Context context;
public String title;
public String summaryOn;
public String summaryOff;
public String entries;
public int iconResId;
public String key;
public SearchResult(Context context, String title, String summaryOn, String summaryOff,
String entries, int iconResId, String key) {
this.context = context;
this.title = title;
this.summaryOn = summaryOn;
this.summaryOff = summaryOff;
this.entries = entries;
this.iconResId = iconResId;
this.key = key;
}
}
private static class SearchResultsAdapter extends BaseAdapter {
private Context mContext;
private Cursor mCursor;
private LayoutInflater mInflater;
private boolean mDataValid;
private HashMap<String, Context> mContextMap = new HashMap<String, Context>();
private static final String PERCENT_RECLACE = "%s";
private static final String DOLLAR_REPLACE = "$s";
public SearchResultsAdapter(Context context) {
mContext = context;
mInflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
mDataValid = false;
}
public Cursor swapCursor(Cursor newCursor) {
if (newCursor == mCursor) {
return null;
}
Cursor oldCursor = mCursor;
mCursor = newCursor;
if (newCursor != null) {
mDataValid = true;
notifyDataSetChanged();
} else {
mDataValid = false;
notifyDataSetInvalidated();
}
return oldCursor;
}
@Override
public int getCount() {
if (!mDataValid || mCursor == null || mCursor.isClosed()) return 0;
return mCursor.getCount();
}
@Override
public Object getItem(int position) {
if (mDataValid && mCursor.moveToPosition(position)) {
final String title = mCursor.getString(Index.COLUMN_INDEX_TITLE);
final String summaryOn = mCursor.getString(Index.COLUMN_INDEX_SUMMARY_ON);
final String summaryOff = mCursor.getString(Index.COLUMN_INDEX_SUMMARY_OFF);
final String entries = mCursor.getString(Index.COLUMN_INDEX_ENTRIES);
final String iconResStr = mCursor.getString(Index.COLUMN_INDEX_ICON);
final String className = mCursor.getString(
Index.COLUMN_INDEX_CLASS_NAME);
final String packageName = mCursor.getString(
Index.COLUMN_INDEX_INTENT_ACTION_TARGET_PACKAGE);
final String key = mCursor.getString(
Index.COLUMN_INDEX_KEY);
Context packageContext;
if (TextUtils.isEmpty(className) && !TextUtils.isEmpty(packageName)) {
packageContext = mContextMap.get(packageName);
if (packageContext == null) {
try {
packageContext = mContext.createPackageContext(packageName, 0);
} catch (PackageManager.NameNotFoundException e) {
Log.e(LOG_TAG, "Cannot create Context for package: " + packageName);
return null;
}
mContextMap.put(packageName, packageContext);
}
} else {
packageContext = mContext;
}
final int iconResId = TextUtils.isEmpty(iconResStr) ?
R.drawable.empty_icon : Integer.parseInt(iconResStr);
return new SearchResult(packageContext, title, summaryOn, summaryOff,
entries, iconResId, key);
}
return null;
}
@Override
public long getItemId(int position) {
return 0;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
if (!mDataValid && convertView == null) {
throw new IllegalStateException(
"this should only be called when the cursor is valid");
}
if (!mCursor.moveToPosition(position)) {
throw new IllegalStateException("couldn't move cursor to position " + position);
}
View view;
TextView textTitle;
ImageView imageView;
if (convertView == null) {
view = mInflater.inflate(R.layout.search_result_item, parent, false);
} else {
view = convertView;
}
textTitle = (TextView) view.findViewById(R.id.title);
imageView = (ImageView) view.findViewById(R.id.icon);
final SearchResult result = (SearchResult) getItem(position);
textTitle.setText(result.title);
if (result.iconResId != R.drawable.empty_icon) {
final Context packageContext = result.context;
final Drawable drawable;
try {
drawable = packageContext.getDrawable(result.iconResId);
imageView.setImageDrawable(drawable);
} catch (Resources.NotFoundException nfe) {
// Not much we can do except logging
Log.e(LOG_TAG, "Cannot load Drawable for " + result.title);
}
} else {
imageView.setImageDrawable(null);
imageView.setBackgroundResource(R.drawable.empty_icon);
}
return view;
}
}
}