public void run() {
byteBuffer = ByteBuffer.allocate(BUFFER_SIZE);
charBuffer = CharBuffer.allocate(BUFFER_SIZE);
/* for East Asian character widths */
byte[] wideAttribute = new byte[BUFFER_SIZE];
byteArray = byteBuffer.array();
charArray = charBuffer.array();
CoderResult result;
int bytesRead = 0;
byteBuffer.limit(0);
int bytesToRead;
int offset;
int charWidth;
EastAsianWidth measurer = EastAsianWidth.getInstance();
try {
while (true) {
charWidth = bridge.charWidth;
bytesToRead = byteBuffer.capacity() - byteBuffer.limit();
offset = byteBuffer.arrayOffset() + byteBuffer.limit();
bytesRead = transport.read(byteArray, offset, bytesToRead);
if (bytesRead > 0) {
byteBuffer.limit(byteBuffer.limit() + bytesRead);
synchronized (this) {
result = decoder.decode(byteBuffer, charBuffer, false);
}
if (result.isUnderflow() && byteBuffer.limit() == byteBuffer.capacity()) {
byteBuffer.compact();
byteBuffer.limit(byteBuffer.position());
byteBuffer.position(0);
}
offset = charBuffer.position();
measurer.measure(charArray, 0, offset, wideAttribute, bridge.defaultPaint, charWidth);
buffer.putString(charArray, wideAttribute, 0, charBuffer.position());
bridge.propagateConsoleText(charArray, charBuffer.position());
charBuffer.clear();
bridge.redraw();
}
}
} catch (IOException e) {
Log.e(TAG, "Problem while handling incoming data in relay thread", e);
}
}
/**
* Handle meta key presses where the key can be locked on.
*
* <p>1st press: next key to have meta state<br>
* 2nd press: meta state is locked on<br>
* 3rd press: disable meta state
*
* @param code
*/
public void metaPress(int code) {
if ((metaState & (code << 1)) != 0) {
metaState &= ~(code << 1);
} else if ((metaState & code) != 0) {
metaState &= ~code;
metaState |= code << 1;
} else metaState |= code;
bridge.redraw();
}
/**
* Handle onKey() events coming down from a {@link TerminalView} above us. Modify the keys to make
* more sense to a host then pass it to the transport.
*/
public boolean onKey(View v, int keyCode, KeyEvent event) {
try {
final boolean hardKeyboardHidden = manager.hardKeyboardHidden;
// Ignore all key-up events except for the special keys
if (event.getAction() == KeyEvent.ACTION_UP) {
// There's nothing here for virtual keyboard users.
if (!hardKeyboard || (hardKeyboard && hardKeyboardHidden)) return false;
// skip keys if we aren't connected yet or have been disconnected
if (bridge.isDisconnected() || bridge.transport == null) return false;
if (PreferenceConstants.KEYMODE_RIGHT.equals(keymode)) {
if (keyCode == KeyEvent.KEYCODE_ALT_RIGHT && (metaState & META_SLASH) != 0) {
metaState &= ~(META_SLASH | META_TRANSIENT);
bridge.transport.write('/');
return true;
} else if (keyCode == KeyEvent.KEYCODE_SHIFT_RIGHT && (metaState & META_TAB) != 0) {
metaState &= ~(META_TAB | META_TRANSIENT);
bridge.transport.write(0x09);
return true;
}
} else if (PreferenceConstants.KEYMODE_LEFT.equals(keymode)) {
if (keyCode == KeyEvent.KEYCODE_ALT_LEFT && (metaState & META_SLASH) != 0) {
metaState &= ~(META_SLASH | META_TRANSIENT);
bridge.transport.write('/');
return true;
} else if (keyCode == KeyEvent.KEYCODE_SHIFT_LEFT && (metaState & META_TAB) != 0) {
metaState &= ~(META_TAB | META_TRANSIENT);
bridge.transport.write(0x09);
return true;
}
}
return false;
}
// check for terminal resizing keys
if (keyCode == KeyEvent.KEYCODE_VOLUME_UP) {
bridge.increaseFontSize();
return true;
} else if (keyCode == KeyEvent.KEYCODE_VOLUME_DOWN) {
bridge.decreaseFontSize();
return true;
}
// skip keys if we aren't connected yet or have been disconnected
if (bridge.isDisconnected() || bridge.transport == null) return false;
bridge.resetScrollPosition();
if (keyCode == KeyEvent.KEYCODE_UNKNOWN && event.getAction() == KeyEvent.ACTION_MULTIPLE) {
byte[] input = event.getCharacters().getBytes(encoding);
bridge.transport.write(input);
return true;
}
int curMetaState = event.getMetaState();
final int orgMetaState = curMetaState;
if ((metaState & META_SHIFT_MASK) != 0) {
curMetaState |= KeyEvent.META_SHIFT_ON;
}
if ((metaState & META_ALT_MASK) != 0) {
curMetaState |= KeyEvent.META_ALT_ON;
}
int key = event.getUnicodeChar(curMetaState);
// no hard keyboard? ALT-k should pass through to below
if ((orgMetaState & KeyEvent.META_ALT_ON) != 0 && (!hardKeyboard || hardKeyboardHidden)) {
key = 0;
}
if ((key & KeyCharacterMap.COMBINING_ACCENT) != 0) {
mDeadKey = key & KeyCharacterMap.COMBINING_ACCENT_MASK;
return true;
}
if (mDeadKey != 0) {
key = KeyCharacterMap.getDeadChar(mDeadKey, keyCode);
mDeadKey = 0;
}
final boolean printing = (key != 0 && keyCode != KeyEvent.KEYCODE_ENTER);
// otherwise pass through to existing session
// print normal keys
if (printing) {
metaState &= ~(META_SLASH | META_TAB);
// Remove shift and alt modifiers
final int lastMetaState = metaState;
metaState &= ~(META_SHIFT_ON | META_ALT_ON);
if (metaState != lastMetaState) {
bridge.redraw();
}
if ((metaState & META_CTRL_MASK) != 0) {
metaState &= ~META_CTRL_ON;
bridge.redraw();
// If there is no hard keyboard or there is a hard keyboard currently hidden,
// CTRL-1 through CTRL-9 will send F1 through F9
if ((!hardKeyboard || (hardKeyboard && hardKeyboardHidden)) && sendFunctionKey(keyCode))
return true;
key = keyAsControl(key);
}
// handle pressing f-keys
if ((hardKeyboard && !hardKeyboardHidden)
&& (curMetaState & KeyEvent.META_SHIFT_ON) != 0
&& sendFunctionKey(keyCode)) return true;
if (key < 0x80) bridge.transport.write(key);
else
// TODO write encoding routine that doesn't allocate each time
bridge.transport.write(new String(Character.toChars(key)).getBytes(encoding));
return true;
}
// send ctrl and meta-keys as appropriate
if (!hardKeyboard || hardKeyboardHidden) {
int k = event.getUnicodeChar(0);
int k0 = k;
boolean sendCtrl = false;
boolean sendMeta = false;
if (k != 0) {
if ((orgMetaState & HC_META_CTRL_ON) != 0) {
k = keyAsControl(k);
if (k != k0) sendCtrl = true;
// send F1-F10 via CTRL-1 through CTRL-0
if (!sendCtrl && sendFunctionKey(keyCode)) return true;
} else if ((orgMetaState & KeyEvent.META_ALT_ON) != 0) {
sendMeta = true;
sendEscape();
}
if (sendMeta || sendCtrl) {
bridge.transport.write(k);
return true;
}
}
}
// try handling keymode shortcuts
if (hardKeyboard && !hardKeyboardHidden && event.getRepeatCount() == 0) {
if (PreferenceConstants.KEYMODE_RIGHT.equals(keymode)) {
switch (keyCode) {
case KeyEvent.KEYCODE_ALT_RIGHT:
metaState |= META_SLASH;
return true;
case KeyEvent.KEYCODE_SHIFT_RIGHT:
metaState |= META_TAB;
return true;
case KeyEvent.KEYCODE_SHIFT_LEFT:
metaPress(META_SHIFT_ON);
return true;
case KeyEvent.KEYCODE_ALT_LEFT:
metaPress(META_ALT_ON);
return true;
}
} else if (PreferenceConstants.KEYMODE_LEFT.equals(keymode)) {
switch (keyCode) {
case KeyEvent.KEYCODE_ALT_LEFT:
metaState |= META_SLASH;
return true;
case KeyEvent.KEYCODE_SHIFT_LEFT:
metaState |= META_TAB;
return true;
case KeyEvent.KEYCODE_SHIFT_RIGHT:
metaPress(META_SHIFT_ON);
return true;
case KeyEvent.KEYCODE_ALT_RIGHT:
metaPress(META_ALT_ON);
return true;
}
} else {
switch (keyCode) {
case KeyEvent.KEYCODE_ALT_LEFT:
case KeyEvent.KEYCODE_ALT_RIGHT:
metaPress(META_ALT_ON);
return true;
case KeyEvent.KEYCODE_SHIFT_LEFT:
case KeyEvent.KEYCODE_SHIFT_RIGHT:
metaPress(META_SHIFT_ON);
return true;
}
}
}
// look for special chars
switch (keyCode) {
case KEYCODE_ESCAPE:
sendEscape();
return true;
case KeyEvent.KEYCODE_TAB:
bridge.transport.write(0x09);
return true;
case KeyEvent.KEYCODE_SEARCH:
// check to see which shortcut the search button triggers
String search =
manager.prefs.getString(PreferenceConstants.SEARCH, PreferenceConstants.SEARCH_ESC);
if (PreferenceConstants.SEARCH_BACKBTN.equals(search)) {
// TODO: figure out what to do here!
} else if (PreferenceConstants.SEARCH_ESC.equals(search)) {
sendEscape();
}
return true;
case KeyEvent.KEYCODE_CAMERA:
// check to see which shortcut the camera button triggers
String camera =
manager.prefs.getString(
PreferenceConstants.CAMERA, PreferenceConstants.CAMERA_CTRLA_SPACE);
if (PreferenceConstants.CAMERA_CTRLA_SPACE.equals(camera)) {
bridge.transport.write(0x01);
bridge.transport.write(' ');
} else if (PreferenceConstants.CAMERA_CTRLA.equals(camera)) {
bridge.transport.write(0x01);
} else if (PreferenceConstants.CAMERA_ESC.equals(camera)) {
((vt320) buffer).keyTyped(vt320.KEY_ESCAPE, ' ', 0);
} else if (PreferenceConstants.CAMERA_ESC_A.equals(camera)) {
((vt320) buffer).keyTyped(vt320.KEY_ESCAPE, ' ', 0);
bridge.transport.write('a');
}
break;
case KeyEvent.KEYCODE_DEL:
((vt320) buffer).keyPressed(vt320.KEY_BACK_SPACE, ' ', getStateForBuffer());
metaState &= ~META_TRANSIENT;
return true;
case KeyEvent.KEYCODE_ENTER:
((vt320) buffer).keyTyped(vt320.KEY_ENTER, ' ', 0);
metaState &= ~META_TRANSIENT;
return true;
case KeyEvent.KEYCODE_DPAD_LEFT:
if (selectingForCopy) {
selectionArea.decrementColumn();
bridge.redraw();
} else {
((vt320) buffer).keyPressed(vt320.KEY_LEFT, ' ', getStateForBuffer());
metaState &= ~META_TRANSIENT;
bridge.tryKeyVibrate();
}
return true;
case KeyEvent.KEYCODE_DPAD_UP:
if (selectingForCopy) {
selectionArea.decrementRow();
bridge.redraw();
} else {
((vt320) buffer).keyPressed(vt320.KEY_UP, ' ', getStateForBuffer());
metaState &= ~META_TRANSIENT;
bridge.tryKeyVibrate();
}
return true;
case KeyEvent.KEYCODE_DPAD_DOWN:
if (selectingForCopy) {
selectionArea.incrementRow();
bridge.redraw();
} else {
((vt320) buffer).keyPressed(vt320.KEY_DOWN, ' ', getStateForBuffer());
metaState &= ~META_TRANSIENT;
bridge.tryKeyVibrate();
}
return true;
case KeyEvent.KEYCODE_DPAD_RIGHT:
if (selectingForCopy) {
selectionArea.incrementColumn();
bridge.redraw();
} else {
((vt320) buffer).keyPressed(vt320.KEY_RIGHT, ' ', getStateForBuffer());
metaState &= ~META_TRANSIENT;
bridge.tryKeyVibrate();
}
return true;
case KeyEvent.KEYCODE_DPAD_CENTER:
if (selectingForCopy) {
if (selectionArea.isSelectingOrigin()) selectionArea.finishSelectingOrigin();
else {
if (clipboard != null) {
// copy selected area to clipboard
String copiedText = selectionArea.copyFrom(buffer);
clipboard.setText(copiedText);
// XXX STOPSHIP
// manager.notifyUser(manager.getString(
// R.string.console_copy_done,
// copiedText.length()));
selectingForCopy = false;
selectionArea.reset();
}
}
} else {
if ((metaState & META_CTRL_ON) != 0) {
sendEscape();
metaState &= ~META_CTRL_ON;
} else metaPress(META_CTRL_ON);
}
bridge.redraw();
return true;
case KeyEvent.KEYCODE_PAGE_UP:
((vt320) buffer).keyPressed(vt320.KEY_PAGE_UP, ' ', getStateForBuffer());
metaState &= ~META_TRANSIENT;
bridge.tryKeyVibrate();
return true;
case KeyEvent.KEYCODE_PAGE_DOWN:
((vt320) buffer).keyPressed(vt320.KEY_PAGE_DOWN, ' ', getStateForBuffer());
metaState &= ~META_TRANSIENT;
bridge.tryKeyVibrate();
return true;
case KeyEvent.KEYCODE_MOVE_HOME:
// ((vt320) buffer).keyPressed(vt320.KEY_HOME, ' ',getStateForBuffer());
((vt320) buffer).keyTyped(vt320.KEY_ESCAPE, ' ', 0);
bridge.transport.write("[1~".getBytes());
metaState &= ~META_TRANSIENT;
bridge.tryKeyVibrate();
return true;
case KeyEvent.KEYCODE_MOVE_END:
// ((vt320) buffer).keyPressed(vt320.KEY_END, ' ',getStateForBuffer());
((vt320) buffer).keyTyped(vt320.KEY_ESCAPE, ' ', 0);
bridge.transport.write("[4~".getBytes());
metaState &= ~META_TRANSIENT;
bridge.tryKeyVibrate();
return true;
}
} catch (IOException e) {
Log.e(TAG, "Problem while trying to handle an onKey() event", e);
try {
bridge.transport.flush();
} catch (IOException ioe) {
Log.d(TAG, "Our transport was closed, dispatching disconnect event");
bridge.dispatchDisconnect(false);
}
} catch (NullPointerException npe) {
Log.d(TAG, "Input before connection established ignored.");
return true;
}
return false;
}
