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Code Issues Releases Wiki Activity

Rewrite onKey handling for the ConversationActivity input line

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The current method of supplying an onKey handler for the input line
(having the activity implement OnKeyListener) is somewhat unusual -- the
documentation recommends creating an anonymous inner class to pass to
setOnKeyListener().  Do this, while refactoring the code to make it
somewhat more readable and removing some instances of code duplication.
This commit is contained in:
Steven Luo 2011-05-29 17:49:56 -07:00 committed by Sebastian Kaspari
parent 91d211c51d
commit aa355c4283
1 changed files with 223 additions and 195 deletions
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418
application/src/org/yaaic/activity/ConversationActivity.java
View File

@ -90,7 +90,7 @@ import android.widget.ViewSwitcher;
*
* @author Sebastian Kaspari <sebastian@yaaic.org>
*/
public class ConversationActivity extends Activity implements ServiceConnection, ServerListener, ConversationListener, OnKeyListener
public class ConversationActivity extends Activity implements ServiceConnection, ServerListener, ConversationListener
{
public static final int REQUEST_CODE_SPEECH = 99;
@ -125,6 +125,51 @@ public class ConversationActivity extends Activity implements ServiceConnection,
private int historySize;
OnKeyListener inputKeyListener = new OnKeyListener() {
/**
* On key pressed (input line)
*/
@Override
public boolean onKey(View view, int keyCode, KeyEvent event)
{
EditText input = (EditText) view;
if (event.getAction() != KeyEvent.ACTION_DOWN) {
return false;
}
if (keyCode == KeyEvent.KEYCODE_DPAD_UP) {
String message = scrollback.goBack();
if (message != null) {
input.setText(message);
}
return true;
}
if (keyCode == KeyEvent.KEYCODE_DPAD_DOWN) {
String message = scrollback.goForward();
if (message != null) {
input.setText(message);
}
return true;
}
if (keyCode == KeyEvent.KEYCODE_ENTER) {
sendMessage(input.getText().toString());
input.setText("");
return true;
}
// Nick completion
if (keyCode == KeyEvent.KEYCODE_SEARCH) {
doNickCompletion(input);
return true;
}
return false;
}
};
/**
* On create
*/
@ -147,7 +192,9 @@ public class ConversationActivity extends Activity implements ServiceConnection,
setContentView(R.layout.conversations);
((TextView) findViewById(R.id.title)).setText(server.getTitle());
((EditText) findViewById(R.id.input)).setOnKeyListener(this);
EditText input = (EditText) findViewById(R.id.input);
input.setOnKeyListener(inputKeyListener);
switcher = (ViewSwitcher) findViewById(R.id.switcher);
@ -604,176 +651,6 @@ public class ConversationActivity extends Activity implements ServiceConnection,
return super.onKeyDown(keyCode, event);
}
/**
* On key pressed (input line)
*/
@Override
public boolean onKey(View view, int keyCode, KeyEvent event)
{
EditText input = (EditText) view;
if (keyCode == KeyEvent.KEYCODE_DPAD_UP && event.getAction() == KeyEvent.ACTION_DOWN) {
String message = scrollback.goBack();
if (message != null) {
input.setText(message);
}
return true;
}
if (keyCode == KeyEvent.KEYCODE_DPAD_DOWN && event.getAction() == KeyEvent.ACTION_DOWN) {
String message = scrollback.goForward();
if (message != null) {
input.setText(message);
}
return true;
}
// Nick completion
if (keyCode == KeyEvent.KEYCODE_SEARCH && event.getAction() == KeyEvent.ACTION_DOWN) {
String text = input.getText().toString();
if (text.length() <= 0) {
return true;
}
String[] tokens = text.split("[\\s,.-]+");
if (tokens.length <= 0) {
return true;
}
String word = tokens[tokens.length - 1].toLowerCase();
tokens[tokens.length - 1] = null;
int begin = input.getSelectionStart();
int end = input.getSelectionEnd();
int cursor = Math.min(begin, end);
int sel_end = Math.max(begin, end);
boolean in_selection = cursor != sel_end;
if (in_selection) {
word = text.substring(cursor, sel_end);
} else {
// use the word at the curent cursor position
while(true) {
cursor -= 1;
if (cursor <= 0 || text.charAt(cursor) == ' ') {
break;
}
}
if (cursor < 0) {
cursor = 0;
}
if (text.charAt(cursor) == ' ') {
cursor += 1;
}
sel_end = text.indexOf(' ', cursor);
if (sel_end == -1) {
sel_end = text.length();
}
word = text.substring(cursor, sel_end);
}
// Log.d("Yaaic", "Trying to complete nick: " + word);
Conversation conversationForUserList = deckAdapter.getItem(deck.getSelectedItemPosition());
String[] users = null;
if (conversationForUserList.getType() == Conversation.TYPE_CHANNEL) {
users = binder.getService().getConnection(server.getId()).getUsersAsStringArray(
conversationForUserList.getName()
);
}
// go through users and add matches
if (users != null) {
List<Integer> result = new ArrayList<Integer>();
for (int i = 0; i < users.length; i++) {
if (users[i].toLowerCase().startsWith(word)) {
result.add(Integer.valueOf(i));
}
}
if (result.size() == 1) {
String text1 = users[result.get(0).intValue()];
if (cursor == 0) {
text1 += ":";
}
text1 += " ";
input.getText().replace(cursor, sel_end, text1, 0, text1.length());
int old = input.getInputType();
input.setInputType(old | setInputTypeFlag);
} else if (result.size() > 0) {
Intent intent = new Intent(this, UsersActivity.class);
String[] extra = new String[result.size()];
int i = 0;
for (Integer n : result) {
extra[i++] = users[n.intValue()];
}
input.setSelection(cursor, sel_end);
intent.putExtra(Extra.USERS, extra);
startActivityForResult(intent, REQUEST_CODE_NICK_COMPLETION);
}
}
return true;
}
if (keyCode == KeyEvent.KEYCODE_ENTER && event.getAction() == KeyEvent.ACTION_DOWN) {
if (!server.isConnected()) {
Message message = new Message(getString(R.string.message_not_connected));
message.setColor(Message.COLOR_RED);
message.setIcon(R.drawable.error);
server.getConversation(server.getSelectedConversation()).addMessage(message);
onConversationMessage(server.getSelectedConversation());
}
String text = input.getText().toString();
input.setText("");
if (text.equals("")) {
// ignore empty messages
return true;
}
scrollback.addMessage(text);
Conversation conversation = deckAdapter.getItem(deck.getSelectedItemPosition());
if (conversation != null) {
if (!text.trim().startsWith("/")) {
if (conversation.getType() != Conversation.TYPE_SERVER) {
String nickname = binder.getService().getConnection(serverId).getNick();
//conversation.addMessage(new Message("<" + nickname + "> " + text));
conversation.addMessage(new Message(text, nickname));
binder.getService().getConnection(serverId).sendMessage(conversation.getName(), text);
} else {
Message message = new Message(getString(R.string.chat_only_form_channel));
message.setColor(Message.COLOR_YELLOW);
message.setIcon(R.drawable.warning);
conversation.addMessage(message);
}
onConversationMessage(conversation.getName());
} else {
CommandParser.getInstance().parse(text, server, conversation, binder.getService());
}
}
return true;
}
return false;
}
/**
* On activity result
*/
@ -801,29 +678,7 @@ public class ConversationActivity extends Activity implements ServiceConnection,
startActivityForResult(intent, REQUEST_CODE_USER);
break;
case REQUEST_CODE_NICK_COMPLETION:
EditText input = (EditText) findViewById(R.id.input);
String src = data.getExtras().getString(Extra.USER);
int start = input.getSelectionStart();
int end = input.getSelectionEnd();
if (start == 0) {
src += ":";
}
src += " ";
input.getText().replace(start, end, src, 0, src.length());
// put cursor after inserted text
input.setSelection(start + src.length());
input.post(new Runnable() {
@Override
public void run() {
// make the softkeyboard come up again (only if no hw keyboard is attached)
EditText input = (EditText) findViewById(R.id.input);
InputMethodManager mgr = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
mgr.showSoftInput(input, InputMethodManager.SHOW_IMPLICIT);
}
});
input.requestFocus();
insertNickCompletion((EditText) findViewById(R.id.input), data.getExtras().getString(Extra.USER));
break;
case REQUEST_CODE_USER:
final int actionId = data.getExtras().getInt(Extra.ACTION);
@ -910,4 +765,177 @@ public class ConversationActivity extends Activity implements ServiceConnection,
break;
}
}
/**
* Send a message in this conversation
*
* @param text The text of the message
*/
private void sendMessage(String text) {
if (text.equals("")) {
// ignore empty messages
return;
}
if (!server.isConnected()) {
Message message = new Message(getString(R.string.message_not_connected));
message.setColor(Message.COLOR_RED);
message.setIcon(R.drawable.error);
server.getConversation(server.getSelectedConversation()).addMessage(message);
onConversationMessage(server.getSelectedConversation());
}
scrollback.addMessage(text);
Conversation conversation = deckAdapter.getItem(deck.getSelectedItemPosition());
if (conversation != null) {
if (!text.trim().startsWith("/")) {
if (conversation.getType() != Conversation.TYPE_SERVER) {
String nickname = binder.getService().getConnection(serverId).getNick();
//conversation.addMessage(new Message("<" + nickname + "> " + text));
conversation.addMessage(new Message(text, nickname));
binder.getService().getConnection(serverId).sendMessage(conversation.getName(), text);
} else {
Message message = new Message(getString(R.string.chat_only_form_channel));
message.setColor(Message.COLOR_YELLOW);
message.setIcon(R.drawable.warning);
conversation.addMessage(message);
}
onConversationMessage(conversation.getName());
} else {
CommandParser.getInstance().parse(text, server, conversation, binder.getService());
}
}
}
/**
* Complete a nick in the input line
*/
private void doNickCompletion(EditText input) {
String text = input.getText().toString();
if (text.length() <= 0) {
return;
}
String[] tokens = text.split("[\\s,.-]+");
if (tokens.length <= 0) {
return;
}
String word = tokens[tokens.length - 1].toLowerCase();
tokens[tokens.length - 1] = null;
int begin = input.getSelectionStart();
int end = input.getSelectionEnd();
int cursor = Math.min(begin, end);
int sel_end = Math.max(begin, end);
boolean in_selection = (cursor != sel_end);
if (in_selection) {
word = text.substring(cursor, sel_end);
} else {
// use the word at the curent cursor position
while(true) {
cursor -= 1;
if (cursor <= 0 || text.charAt(cursor) == ' ') {
break;
}
}
if (cursor < 0) {
cursor = 0;
}
if (text.charAt(cursor) == ' ') {
cursor += 1;
}
sel_end = text.indexOf(' ', cursor);
if (sel_end == -1) {
sel_end = text.length();
}
word = text.substring(cursor, sel_end);
}
// Log.d("Yaaic", "Trying to complete nick: " + word);
Conversation conversationForUserList = deckAdapter.getItem(deck.getSelectedItemPosition());
String[] users = null;
if (conversationForUserList.getType() == Conversation.TYPE_CHANNEL) {
users = binder.getService().getConnection(server.getId()).getUsersAsStringArray(
conversationForUserList.getName()
);
}
// go through users and add matches
if (users != null) {
List<Integer> result = new ArrayList<Integer>();
for (int i = 0; i < users.length; i++) {
if (users[i].toLowerCase().startsWith(word)) {
result.add(Integer.valueOf(i));
}
}
if (result.size() == 1) {
input.setSelection(cursor, sel_end);
insertNickCompletion(input, users[result.get(0).intValue()]);
} else if (result.size() > 0) {
Intent intent = new Intent(this, UsersActivity.class);
String[] extra = new String[result.size()];
int i = 0;
for (Integer n : result) {
extra[i++] = users[n.intValue()];
}
input.setSelection(cursor, sel_end);
intent.putExtra(Extra.USERS, extra);
startActivityForResult(intent, REQUEST_CODE_NICK_COMPLETION);
}
}
}
/**
* Insert a given nick completion into the input line
*
* @param input The input line widget, with the incomplete nick selected
* @param nick The completed nick
*/
private void insertNickCompletion(EditText input, String nick) {
int start = input.getSelectionStart();
int end = input.getSelectionEnd();
if (start == 0) {
nick += ":";
}
nick += " ";
input.getText().replace(start, end, nick, 0, nick.length());
// put cursor after inserted text
input.setSelection(start + nick.length());
input.post(new Runnable() {
@Override
public void run() {
// make the softkeyboard come up again (only if no hw keyboard is attached)
EditText input = (EditText) findViewById(R.id.input);
openSoftKeyboard(input);
}
});
input.requestFocus();
}
/**
* Open the soft keyboard (helper function)
*/
private void openSoftKeyboard(View view) {
((InputMethodManager) getSystemService(INPUT_METHOD_SERVICE)).showSoftInput(view, InputMethodManager.SHOW_IMPLICIT);
}
}