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426 lines
12 KiB
426 lines
12 KiB
package acr.browser.lightning; |
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import java.io.BufferedInputStream; |
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import java.io.File; |
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import java.io.FileInputStream; |
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import java.io.FileOutputStream; |
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import java.io.FilenameFilter; |
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import java.io.IOException; |
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import java.io.InputStream; |
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import java.io.UnsupportedEncodingException; |
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import java.net.HttpURLConnection; |
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import java.net.URL; |
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import java.net.URLEncoder; |
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import java.util.ArrayList; |
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import java.util.List; |
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import java.util.Locale; |
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import org.xmlpull.v1.XmlPullParser; |
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import org.xmlpull.v1.XmlPullParserFactory; |
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import android.annotation.SuppressLint; |
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import android.app.Activity; |
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import android.content.Context; |
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import android.content.res.Resources.Theme; |
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import android.graphics.Color; |
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import android.net.ConnectivityManager; |
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import android.net.NetworkInfo; |
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import android.os.AsyncTask; |
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import android.os.Build; |
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import android.view.LayoutInflater; |
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import android.view.View; |
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import android.view.ViewGroup; |
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import android.widget.BaseAdapter; |
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import android.widget.Filter; |
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import android.widget.Filterable; |
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import android.widget.ImageView; |
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import android.widget.TextView; |
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public class SearchAdapter extends BaseAdapter implements Filterable { |
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private List<HistoryItem> mHistory; |
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private List<HistoryItem> mBookmarks; |
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private List<HistoryItem> mSuggestions; |
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private List<HistoryItem> mFilteredList; |
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private List<HistoryItem> mAllBookmarks; |
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private HistoryDatabase mDatabaseHandler; |
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private Context mContext; |
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private boolean mUseGoogle = true; |
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private boolean mIsExecuting = false; |
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private boolean mDarkTheme; |
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private boolean mIncognito; |
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private BookmarkManager mBookmarkManager; |
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private static final String ENCODING = "ISO-8859-1"; |
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private static final long INTERVAL_DAY = 86400000; |
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private String mSearchSubtitle; |
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private static final int API = Build.VERSION.SDK_INT; |
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private Theme mTheme; |
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private SearchFilter mFilter; |
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public SearchAdapter(Context context, boolean dark, boolean incognito) { |
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mDatabaseHandler = HistoryDatabase.getInstance(context.getApplicationContext()); |
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mTheme = context.getTheme(); |
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mFilteredList = new ArrayList<HistoryItem>(); |
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mHistory = new ArrayList<HistoryItem>(); |
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mBookmarks = new ArrayList<HistoryItem>(); |
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mSuggestions = new ArrayList<HistoryItem>(); |
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mBookmarkManager = BookmarkManager.getInstance(context.getApplicationContext()); |
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mAllBookmarks = mBookmarkManager.getBookmarks(true); |
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mUseGoogle = PreferenceManager.getInstance().getGoogleSearchSuggestionsEnabled(); |
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mContext = context; |
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mSearchSubtitle = mContext.getString(R.string.suggestion); |
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mDarkTheme = dark || incognito; |
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mIncognito = incognito; |
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Thread delete = new Thread(new Runnable() { |
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@Override |
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public void run() { |
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deleteOldCacheFiles(mContext); |
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} |
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}); |
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delete.start(); |
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} |
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private void deleteOldCacheFiles(Context context) { |
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File dir = new File(context.getCacheDir().toString()); |
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String[] fileList = dir.list(new NameFilter()); |
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long earliestTimeAllowed = System.currentTimeMillis() - INTERVAL_DAY; |
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for (String fileName : fileList) { |
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File file = new File(dir.getPath() + fileName); |
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if (earliestTimeAllowed > file.lastModified()) { |
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file.delete(); |
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} |
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} |
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} |
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private class NameFilter implements FilenameFilter { |
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private static final String ext = ".sgg"; |
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@Override |
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public boolean accept(File dir, String filename) { |
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return filename.endsWith(ext); |
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} |
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} |
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public void refreshPreferences() { |
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mUseGoogle = PreferenceManager.getInstance().getGoogleSearchSuggestionsEnabled(); |
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if (!mUseGoogle && mSuggestions != null) { |
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mSuggestions.clear(); |
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} |
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} |
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public void refreshBookmarks() { |
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mAllBookmarks = mBookmarkManager.getBookmarks(true); |
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} |
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@Override |
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public int getCount() { |
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if (mFilteredList != null) { |
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return mFilteredList.size(); |
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} else { |
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return 0; |
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} |
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} |
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@Override |
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public Object getItem(int position) { |
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return mFilteredList.get(position); |
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} |
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@Override |
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public long getItemId(int position) { |
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return 0; |
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} |
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@SuppressWarnings("deprecation") |
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@SuppressLint("NewApi") |
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@Override |
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public View getView(int position, View convertView, ViewGroup parent) { |
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View row = convertView; |
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SuggestionHolder holder = null; |
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if (row == null) { |
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LayoutInflater inflater = ((Activity) mContext).getLayoutInflater(); |
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row = inflater.inflate(R.layout.two_line_autocomplete, parent, false); |
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holder = new SuggestionHolder(); |
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holder.mTitle = (TextView) row.findViewById(R.id.title); |
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holder.mUrl = (TextView) row.findViewById(R.id.url); |
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holder.mImage = (ImageView) row.findViewById(R.id.suggestionIcon); |
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row.setTag(holder); |
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} else { |
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holder = (SuggestionHolder) row.getTag(); |
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} |
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HistoryItem web = mFilteredList.get(position); |
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holder.mTitle.setText(web.getTitle()); |
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holder.mUrl.setText(web.getUrl()); |
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int imageId = R.drawable.ic_bookmark; |
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switch (web.getImageId()) { |
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case R.drawable.ic_bookmark: { |
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if (!mDarkTheme) { |
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imageId = R.drawable.ic_bookmark; |
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} else { |
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holder.mTitle.setTextColor(Color.WHITE); |
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imageId = R.drawable.ic_bookmark_dark; |
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} |
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break; |
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} |
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case R.drawable.ic_search: { |
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if (!mDarkTheme) { |
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imageId = R.drawable.ic_search; |
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} else { |
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holder.mTitle.setTextColor(Color.WHITE); |
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imageId = R.drawable.ic_search_dark; |
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} |
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break; |
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} |
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case R.drawable.ic_history: { |
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if (!mDarkTheme) { |
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imageId = R.drawable.ic_history; |
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} else { |
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holder.mTitle.setTextColor(Color.WHITE); |
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imageId = R.drawable.ic_history_dark; |
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} |
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break; |
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} |
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} |
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if (API < Build.VERSION_CODES.LOLLIPOP) { |
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holder.mImage.setImageDrawable(mContext.getResources().getDrawable(imageId)); |
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} else { |
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holder.mImage.setImageDrawable(mContext.getResources().getDrawable(imageId, mTheme)); |
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} |
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return row; |
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} |
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public void setContents(List<HistoryItem> list) { |
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if (mFilteredList != null) { |
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mFilteredList.clear(); |
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mFilteredList.addAll(list); |
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} else { |
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mFilteredList = list; |
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} |
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notifyDataSetChanged(); |
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} |
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@Override |
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public Filter getFilter() { |
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if (mFilter == null) { |
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mFilter = new SearchFilter(); |
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} |
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return mFilter; |
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} |
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public class SearchFilter extends Filter { |
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@Override |
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protected FilterResults performFiltering(CharSequence constraint) { |
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FilterResults results = new FilterResults(); |
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if (constraint == null || constraint.toString() == null) { |
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return results; |
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} |
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String query = constraint.toString().toLowerCase(Locale.getDefault()); |
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if (mUseGoogle && !mIncognito && !mIsExecuting) { |
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new RetrieveSearchSuggestions().execute(query); |
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} |
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int counter = 0; |
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mBookmarks = new ArrayList<HistoryItem>(); |
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for (int n = 0; n < mAllBookmarks.size(); n++) { |
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if (counter >= 5) { |
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break; |
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} |
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if (mAllBookmarks.get(n).getTitle().toLowerCase(Locale.getDefault()) |
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.startsWith(query)) { |
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mBookmarks.add(mAllBookmarks.get(n)); |
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counter++; |
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} else if (mAllBookmarks.get(n).getUrl().contains(query)) { |
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mBookmarks.add(mAllBookmarks.get(n)); |
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counter++; |
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} |
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} |
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if (mDatabaseHandler == null) { |
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mDatabaseHandler = HistoryDatabase.getInstance(mContext.getApplicationContext()); |
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} |
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mHistory = mDatabaseHandler.findItemsContaining(constraint.toString()); |
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results.count = 1; |
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return results; |
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} |
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@Override |
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public CharSequence convertResultToString(Object resultValue) { |
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return ((HistoryItem) resultValue).getUrl(); |
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} |
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@Override |
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protected void publishResults(CharSequence constraint, FilterResults results) { |
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mFilteredList = getSuggestions(); |
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notifyDataSetChanged(); |
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} |
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} |
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private class SuggestionHolder { |
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ImageView mImage; |
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TextView mTitle; |
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TextView mUrl; |
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} |
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private class RetrieveSearchSuggestions extends AsyncTask<String, Void, List<HistoryItem>> { |
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private XmlPullParserFactory mFactory; |
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private XmlPullParser mXpp; |
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@Override |
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protected List<HistoryItem> doInBackground(String... arg0) { |
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mIsExecuting = true; |
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List<HistoryItem> filter = new ArrayList<HistoryItem>(); |
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String query = arg0[0]; |
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try { |
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query = query.replace(" ", "+"); |
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URLEncoder.encode(query, ENCODING); |
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} catch (UnsupportedEncodingException e) { |
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e.printStackTrace(); |
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} |
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File cache = downloadSuggestionsForQuery(query); |
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if (!cache.exists()) { |
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return filter; |
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} |
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InputStream fileInput = null; |
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try { |
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fileInput = new BufferedInputStream(new FileInputStream(cache)); |
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if (mFactory == null) { |
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mFactory = XmlPullParserFactory.newInstance(); |
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mFactory.setNamespaceAware(true); |
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} |
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if (mXpp == null) { |
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mXpp = mFactory.newPullParser(); |
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} |
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mXpp.setInput(fileInput, ENCODING); |
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int eventType = mXpp.getEventType(); |
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int counter = 0; |
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while (eventType != XmlPullParser.END_DOCUMENT) { |
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if (eventType == XmlPullParser.START_TAG && "suggestion".equals(mXpp.getName())) { |
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String suggestion = mXpp.getAttributeValue(null, "data"); |
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filter.add(new HistoryItem(mSearchSubtitle + " \"" + suggestion + '"', |
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suggestion, R.drawable.ic_search)); |
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counter++; |
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if (counter >= 5) { |
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break; |
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} |
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} |
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eventType = mXpp.next(); |
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} |
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} catch (Exception e) { |
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return filter; |
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} finally { |
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if (fileInput != null) { |
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try { |
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fileInput.close(); |
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} catch (IOException e) { |
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e.printStackTrace(); |
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} |
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} |
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} |
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return filter; |
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} |
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@Override |
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protected void onPostExecute(List<HistoryItem> result) { |
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mSuggestions = result; |
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mFilteredList = getSuggestions(); |
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notifyDataSetChanged(); |
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mIsExecuting = false; |
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} |
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} |
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private File downloadSuggestionsForQuery(String query) { |
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File cacheFile = new File(mContext.getCacheDir(), query.hashCode() + ".sgg"); |
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if (System.currentTimeMillis() - INTERVAL_DAY < cacheFile.lastModified()) { |
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return cacheFile; |
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} |
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if (!isNetworkConnected(mContext)) { |
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return cacheFile; |
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} |
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try { |
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URL url = new URL("http://google.com/complete/search?q=" + query |
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+ "&output=toolbar&hl=en"); |
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HttpURLConnection connection = (HttpURLConnection) url.openConnection(); |
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connection.setDoInput(true); |
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connection.connect(); |
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InputStream in = connection.getInputStream(); |
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if (in != null) { |
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FileOutputStream fos = new FileOutputStream(cacheFile); |
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int buffer; |
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while ((buffer = in.read()) != -1) { |
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fos.write(buffer); |
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} |
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fos.flush(); |
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fos.close(); |
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} |
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cacheFile.setLastModified(System.currentTimeMillis()); |
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} catch (Exception e) { |
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e.printStackTrace(); |
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} |
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return cacheFile; |
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} |
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private boolean isNetworkConnected(Context context) { |
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NetworkInfo networkInfo = getActiveNetworkInfo(context); |
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return networkInfo != null && networkInfo.isConnected(); |
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} |
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private NetworkInfo getActiveNetworkInfo(Context context) { |
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ConnectivityManager connectivity = (ConnectivityManager) context |
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.getSystemService(Context.CONNECTIVITY_SERVICE); |
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if (connectivity == null) { |
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return null; |
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} |
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return connectivity.getActiveNetworkInfo(); |
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} |
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public List<HistoryItem> getSuggestions() { |
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List<HistoryItem> filteredList = new ArrayList<HistoryItem>(); |
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int suggestionsSize = (mSuggestions == null) ? 0 : mSuggestions.size(); |
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int historySize = (mHistory == null) ? 0 : mHistory.size(); |
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int bookmarkSize = (mBookmarks == null) ? 0 : mBookmarks.size(); |
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int maxSuggestions = (bookmarkSize + historySize < 3) ? (5 - bookmarkSize - historySize) |
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: (bookmarkSize < 2) ? (4 - bookmarkSize) : (historySize < 1) ? 3 : 2; |
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int maxHistory = (suggestionsSize + bookmarkSize < 4) ? (5 - suggestionsSize - bookmarkSize) |
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: 1; |
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int maxBookmarks = (suggestionsSize + historySize < 3) ? (5 - suggestionsSize - historySize) |
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: 2; |
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if (!mUseGoogle || mIncognito) { |
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maxHistory++; |
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maxBookmarks++; |
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} |
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for (int n = 0; n < bookmarkSize && n < maxBookmarks; n++) { |
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filteredList.add(mBookmarks.get(n)); |
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} |
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for (int n = 0; n < historySize && n < maxHistory; n++) { |
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filteredList.add(mHistory.get(n)); |
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} |
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for (int n = 0; n < suggestionsSize && n < maxSuggestions; n++) { |
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filteredList.add(mSuggestions.get(n)); |
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} |
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return filteredList; |
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} |
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}
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