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search term parsing + highlighting

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This commit is contained in:
Daniel Gultsch 2018-04-30 17:09:55 +02:00
parent 542a06f08a
commit 27f31446c0
8 changed files with 128 additions and 23 deletions
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10
src/main/java/eu/siacs/conversations/persistance/DatabaseBackend.java
View File

@ -50,6 +50,7 @@ import eu.siacs.conversations.entities.Roster;
import eu.siacs.conversations.entities.ServiceDiscoveryResult;
import eu.siacs.conversations.services.ShortcutService;
import eu.siacs.conversations.utils.CryptoHelper;
import eu.siacs.conversations.utils.FtsUtils;
import eu.siacs.conversations.utils.MimeUtils;
import eu.siacs.conversations.utils.Resolver;
import eu.siacs.conversations.xmpp.mam.MamReference;
@ -229,6 +230,10 @@ public class DatabaseBackend extends SQLiteOpenHelper {
db.execSQL(CREATE_IDENTITIES_STATEMENT);
db.execSQL(CREATE_PRESENCE_TEMPLATES_STATEMENT);
db.execSQL(CREATE_RESOLVER_RESULTS_TABLE);
db.execSQL(CREATE_MESSAGE_INDEX_TABLE);
db.execSQL(CREATE_MESSAGE_INSERT_TRIGGER);
db.execSQL(CREATE_MESSAGE_UPDATE_TRIGGER);
db.execSQL(CREATE_MESSAGE_DELETE_TRIGGER);
}
@Override
@ -718,10 +723,11 @@ public class DatabaseBackend extends SQLiteOpenHelper {
return list;
}
public Cursor getMessageSearchCursor(String term) {
public Cursor getMessageSearchCursor(List<String> term) {
SQLiteDatabase db = this.getReadableDatabase();
String SQL = "SELECT "+Message.TABLENAME+".*,"+Conversation.TABLENAME+'.'+Conversation.CONTACTJID+','+Conversation.TABLENAME+'.'+Conversation.ACCOUNT+','+Conversation.TABLENAME+'.'+Conversation.MODE+" FROM "+Message.TABLENAME +" join "+Conversation.TABLENAME+" on "+Message.TABLENAME+'.'+Message.CONVERSATION+'='+Conversation.TABLENAME+'.'+Conversation.UUID+" join messages_index ON messages_index.uuid=messages.uuid where "+Message.ENCRYPTION+" NOT IN("+Message.ENCRYPTION_AXOLOTL_NOT_FOR_THIS_DEVICE+','+Message.ENCRYPTION_PGP+','+Message.ENCRYPTION_DECRYPTION_FAILED+") AND messages_index.body MATCH ? ORDER BY "+Message.TIME_SENT+" DESC limit "+Config.MAX_SEARCH_RESULTS;
return db.rawQuery(SQL,new String[]{'%'+term+'%'});
Log.d(Config.LOGTAG,"search term: "+FtsUtils.toMatchString(term));
return db.rawQuery(SQL,new String[]{FtsUtils.toMatchString(term)});
}
public Iterable<Message> getMessagesIterable(final Conversation conversation) {

6
src/main/java/eu/siacs/conversations/services/MessageSearchTask.java
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@ -55,18 +55,18 @@ public class MessageSearchTask implements Runnable, Cancellable {
private static final ReplacingSerialSingleThreadExecutor EXECUTOR = new ReplacingSerialSingleThreadExecutor(MessageSearchTask.class.getName());
private final XmppConnectionService xmppConnectionService;
private final String term;
private final List<String> term;
private final OnSearchResultsAvailable onSearchResultsAvailable;
private boolean isCancelled = false;
private MessageSearchTask(XmppConnectionService xmppConnectionService, String term, OnSearchResultsAvailable onSearchResultsAvailable) {
private MessageSearchTask(XmppConnectionService xmppConnectionService, List<String> term, OnSearchResultsAvailable onSearchResultsAvailable) {
this.xmppConnectionService = xmppConnectionService;
this.term = term;
this.onSearchResultsAvailable = onSearchResultsAvailable;
}
public static void search(XmppConnectionService xmppConnectionService, String term, OnSearchResultsAvailable onSearchResultsAvailable) {
public static void search(XmppConnectionService xmppConnectionService, List<String> term, OnSearchResultsAvailable onSearchResultsAvailable) {
new MessageSearchTask(xmppConnectionService, term, onSearchResultsAvailable).executeInBackground();
}

2
src/main/java/eu/siacs/conversations/services/XmppConnectionService.java
View File

@ -535,7 +535,7 @@ public class XmppConnectionService extends Service {
return find(getConversations(), account, jid);
}
public void search(String term, OnSearchResultsAvailable onSearchResultsAvailable) {
public void search(List<String> term, OnSearchResultsAvailable onSearchResultsAvailable) {
MessageSearchTask.search(this, term, onSearchResultsAvailable);
}

16
src/main/java/eu/siacs/conversations/ui/SearchActivity.java
View File

@ -64,6 +64,7 @@ import eu.siacs.conversations.ui.util.DateSeparator;
import eu.siacs.conversations.ui.util.Drawable;
import eu.siacs.conversations.ui.util.ListViewUtils;
import eu.siacs.conversations.ui.util.ShareUtil;
import eu.siacs.conversations.utils.FtsUtils;
import eu.siacs.conversations.utils.MessageUtils;
import static eu.siacs.conversations.ui.util.SoftKeyboardUtils.hideSoftKeyboard;
@ -75,7 +76,7 @@ public class SearchActivity extends XmppActivity implements TextWatcher, OnSearc
private MessageAdapter messageListAdapter;
private final List<Message> messages = new ArrayList<>();
private WeakReference<Message> selectedMessageReference = new WeakReference<>(null);
private final ChangeWatcher<String> currentSearch = new ChangeWatcher<>();
private final ChangeWatcher<List<String>> currentSearch = new ChangeWatcher<>();
@Override
public void onCreate(final Bundle savedInstanceState) {
@ -153,13 +154,10 @@ public class SearchActivity extends XmppActivity implements TextWatcher, OnSearc
}
private void quote(Message message) {
String text = MessageUtils.prepareQuote(message);
final Conversational conversational = message.getConversation();
switchToConversationAndQuote(wrap(message.getConversation()), text);
switchToConversationAndQuote(wrap(message.getConversation()), MessageUtils.prepareQuote(message));
}
private Conversation wrap(Conversational conversational) {
final Conversation conversation;
if (conversational instanceof Conversation) {
return (Conversation) conversational;
} else {
@ -205,12 +203,12 @@ public class SearchActivity extends XmppActivity implements TextWatcher, OnSearc
@Override
public void afterTextChanged(Editable s) {
final String term = s.toString().trim();
final List<String> term = FtsUtils.parse(s.toString().trim());
if (!currentSearch.watch(term)) {
return;
}
if (term.length() > 0) {
xmppConnectionService.search(s.toString().trim(), this);
if (term.size() > 0) {
xmppConnectionService.search(term, this);
} else {
MessageSearchTask.cancelRunningTasks();
this.messages.clear();
@ -221,7 +219,7 @@ public class SearchActivity extends XmppActivity implements TextWatcher, OnSearc
}
@Override
public void onSearchResultsAvailable(String term, List<Message> messages) {
public void onSearchResultsAvailable(List<String> term, List<Message> messages) {
runOnUiThread(() -> {
this.messages.clear();
messageListAdapter.setHighlightedTerm(term);

11
src/main/java/eu/siacs/conversations/ui/adapter/MessageAdapter.java
View File

@ -34,7 +34,6 @@ import android.view.ActionMode;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.view.WindowManager;
import android.widget.ArrayAdapter;
@ -99,7 +98,7 @@ public class MessageAdapter extends ArrayAdapter<Message> implements CopyTextVie
+ "\\;\\/\\?\\@\\&\\=\\#\\~\\-\\.\\+\\!\\*\\'\\(\\)\\,\\_])"
+ "|(?:\\%[a-fA-F0-9]{2}))+");
private String highlightedText = null;
private List<String> highlightedTerm = null;
private static final Linkify.TransformFilter WEBURL_TRANSFORM_FILTER = (matcher, url) -> {
if (url == null) {
@ -550,8 +549,8 @@ public class MessageAdapter extends ArrayAdapter<Message> implements CopyTextVie
}
StylingHelper.format(body, viewHolder.messageBody.getCurrentTextColor());
if (highlightedText != null) {
StylingHelper.highlight(activity, body, highlightedText, StylingHelper.isDarkText(viewHolder.messageBody));
if (highlightedTerm != null) {
StylingHelper.highlight(activity, body, highlightedTerm, StylingHelper.isDarkText(viewHolder.messageBody));
}
Linkify.addLinks(body, XMPP_PATTERN, "xmpp", XMPPURI_MATCH_FILTER, null);
@ -1008,8 +1007,8 @@ public class MessageAdapter extends ArrayAdapter<Message> implements CopyTextVie
}
}
public void setHighlightedTerm(String term) {
this.highlightedText = term;
public void setHighlightedTerm(List<String> term) {
this.highlightedTerm = term;
}
public interface OnQuoteListener {

2
src/main/java/eu/siacs/conversations/ui/interfaces/OnSearchResultsAvailable.java
View File

@ -35,6 +35,6 @@ import eu.siacs.conversations.entities.Message;
public interface OnSearchResultsAvailable {
void onSearchResultsAvailable(String term, List<Message> messages);
void onSearchResultsAvailable(List<String> term, List<Message> messages);
}

94
src/main/java/eu/siacs/conversations/utils/FtsUtils.java Normal file
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@ -0,0 +1,94 @@
/*
* Copyright (c) 2018, Daniel Gultsch All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation and/or
* other materials provided with the distribution.
*
* 3. Neither the name of the copyright holder nor the names of its contributors
* may be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package eu.siacs.conversations.utils;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Locale;
public class FtsUtils {
private static List<String> KEYWORDS = Arrays.asList("OR", "AND");
public static List<String> parse(String input) {
List<String> term = new ArrayList<>();
for (String part : input.split("\\s+")) {
if (part.isEmpty()) {
continue;
}
final String cleaned = part.substring(getStartIndex(part), getEndIndex(part) +1);
if (isKeyword(cleaned)) {
term.add(part);
} else {
term.add(cleaned);
}
}
return term;
}
public static String toMatchString(List<String> terms) {
StringBuilder builder = new StringBuilder();
for (String term : terms) {
if (builder.length() != 0) {
builder.append(' ');
}
if (isKeyword(term)) {
builder.append(term.toUpperCase(Locale.ENGLISH));
} else if (term.contains("*") || term.startsWith("-")) {
builder.append(term);
} else {
builder.append('*').append(term).append('*');
}
}
return builder.toString();
}
public static boolean isKeyword(String term) {
return KEYWORDS.contains(term.toUpperCase(Locale.ENGLISH));
}
private static int getStartIndex(String term) {
int index = 0;
while (term.charAt(index) == '*') {
++index;
}
return index;
}
private static int getEndIndex(String term) {
int index = term.length() - 1;
while (term.charAt(index) == '*') {
--index;
}
return index;
}
}

10
src/main/java/eu/siacs/conversations/utils/StylingHelper.java
View File

@ -91,7 +91,15 @@ public class StylingHelper {
format(editable, end, editable.length() - 1, textColor);
}
public static void highlight(final Context context, final Editable editable, String needle, boolean dark) {
public static void highlight(final Context context, final Editable editable, List<String> needles, boolean dark) {
for(String needle : needles) {
if (!FtsUtils.isKeyword(needle)) {
highlight(context, editable, needle, dark);
}
}
}
private static void highlight(final Context context, final Editable editable, String needle, boolean dark) {
final int length = needle.length();
String string = editable.toString();
int start = indexOfIgnoreCase(string, needle, 0);