Java Code Examples for android.view.KeyEvent#getMetaState()

private boolean moveend(TextView widget, Spannable buffer, KeyEvent event) {
    boolean cap = (MetaKeyKeyListener.getMetaState(buffer,
                    KeyEvent.META_SHIFT_ON) == 1) ||
                  (JotaTextKeyListener.getMetaStateSelecting(buffer) != 0);
    Layout layout = widget.getLayout();

    boolean ctrl = (event.getMetaState() & mShortcutCtrlKey)!=0;

    if ( ctrl ){
        if (cap) {
            Selection.extendSelection(buffer, buffer.length());
            return true;
        } else {
            Selection.setSelection(buffer, buffer.length());
            return true;
        }
    }else{
        if (cap) {
            return Selection.extendToRightEdge(buffer, layout);
        } else {
            return Selection.moveToRightEdge(buffer, layout);
        }
    }
}
 

private KeyEvent convertKeyEventInArc(KeyEvent event) {
  switch (event.getKeyCode()) {
    case KeyEvent.KEYCODE_HOME:
    case KeyEvent.KEYCODE_BACK:
      // In Arc, Search + X is sent as KEYCODE_X with META_META_ON in Android. Android
      // converts META_META_ON + KEYCODE_ENTER and META_META_ON + KEYCODE_DEL to
      // KEYCODE_HOME and KEYCODE_BACK without META_META_ON. We add META_META_ON to this
      // key event to satisfy trigger modifier condition. We don't need to do this in
      // non-Arc since Search + X is usually sent as KEYCODE_X with META_META_ON and
      // META_META_LEFT_ON or META_META_RIGHT_ON.
      return new KeyEvent(
          event.getDownTime(),
          event.getEventTime(),
          event.getAction(),
          event.getKeyCode(),
          event.getRepeatCount(),
          event.getMetaState() | KeyEvent.META_META_ON);
    default:
      return event;
  }
}
 

public void onKeyDown(@Nonnull final KeyEvent keyEvent) {
    if (DEBUG) {
        Log.d(TAG, "EmojiHotKeys.onKeyDown() - " + mName + " - considering " + keyEvent);
    }

    final Pair<Integer, Integer> key =
            Pair.create(keyEvent.getKeyCode(), keyEvent.getMetaState());
    if (mKeySet.contains(key)) {
        if (DEBUG) {
           Log.d(TAG, "EmojiHotKeys.onKeyDown() - " + mName + " - enabling action");
        }
        mCanFire = true;
        mMetaState = keyEvent.getMetaState();
    } else if (mCanFire) {
        if (DEBUG) {
           Log.d(TAG, "EmojiHotKeys.onKeyDown() - " + mName + " - disabling action");
        }
        mCanFire = false;
    }
}
 

public void onKeyDown(@Nonnull final KeyEvent keyEvent) {
    if (DEBUG) {
        Log.d(TAG, "EmojiHotKeys.onKeyDown() - " + mName + " - considering " + keyEvent);
    }

    final Pair<Integer, Integer> key =
            Pair.create(keyEvent.getKeyCode(), keyEvent.getMetaState());
    if (mKeySet.contains(key)) {
        if (DEBUG) {
           Log.d(TAG, "EmojiHotKeys.onKeyDown() - " + mName + " - enabling action");
        }
        mCanFire = true;
        mMetaState = keyEvent.getMetaState();
    } else if (mCanFire) {
        if (DEBUG) {
           Log.d(TAG, "EmojiHotKeys.onKeyDown() - " + mName + " - disabling action");
        }
        mCanFire = false;
    }
}
 

@Override
public boolean onKeyShortcut(int keyCode, KeyEvent event) {
    final int filteredMetaState = event.getMetaState() & ~KeyEvent.META_CTRL_MASK;
    if (KeyEvent.metaStateHasNoModifiers(filteredMetaState)) {
        switch (keyCode) {
            case KeyEvent.KEYCODE_A:
                selectAll();
                return true;
            case KeyEvent.KEYCODE_X:
                cut();
                return true;
            case KeyEvent.KEYCODE_C:
                copy();
                return true;
            case KeyEvent.KEYCODE_V:
                paste();
                return true;
        }
    }
    return super.onKeyShortcut(keyCode, event);
}
 

public void onKeyDown(@Nonnull final KeyEvent keyEvent) {
    if (DEBUG) {
        Log.d(TAG, "EmojiHotKeys.onKeyDown() - " + mName + " - considering " + keyEvent);
    }

    final Pair<Integer, Integer> key =
            Pair.create(keyEvent.getKeyCode(), keyEvent.getMetaState());
    if (mKeySet.contains(key)) {
        if (DEBUG) {
           Log.d(TAG, "EmojiHotKeys.onKeyDown() - " + mName + " - enabling action");
        }
        mCanFire = true;
        mMetaState = keyEvent.getMetaState();
    } else if (mCanFire) {
        if (DEBUG) {
           Log.d(TAG, "EmojiHotKeys.onKeyDown() - " + mName + " - disabling action");
        }
        mCanFire = false;
    }
}
 

private boolean moveend(TextView widget, Spannable buffer, KeyEvent event) {
    boolean cap = (MetaKeyKeyListener.getMetaState(buffer,
                    KeyEvent.META_SHIFT_ON) == 1) ||
                  (JotaTextKeyListener.getMetaStateSelecting(buffer) != 0);
    Layout layout = widget.getLayout();

    boolean ctrl = (event.getMetaState() & mShortcutCtrlKey)!=0;

    if ( ctrl ){
        if (cap) {
            Selection.extendSelection(buffer, buffer.length());
            return true;
        } else {
            Selection.setSelection(buffer, buffer.length());
            return true;
        }
    }else{
        if (cap) {
            return Selection.extendToRightEdge(buffer, layout);
        } else {
            return Selection.moveToRightEdge(buffer, layout);
        }
    }
}
 

@SuppressWarnings("deprecation")
void findItemsWithShortcutForKey(List<MenuItemImpl> items, int keyCode, KeyEvent event) {
    final boolean qwerty = isQwertyMode();
    final int metaState = event.getMetaState();
    final KeyCharacterMap.KeyData possibleChars = new KeyCharacterMap.KeyData();
    // Get the chars associated with the keyCode (i.e using any chording combo)
    final boolean isKeyCodeMapped = event.getKeyData(possibleChars);
    // The delete key is not mapped to '\b' so we treat it specially
    if (!isKeyCodeMapped && (keyCode != KeyEvent.KEYCODE_DEL)) {
        return;
    }

    // Look for an item whose shortcut is this key.
    final int N = mItems.size();
    for (int i = 0; i < N; i++) {
        MenuItemImpl item = mItems.get(i);
        if (item.hasSubMenu()) {
            ((MenuBuilder)item.getSubMenu()).findItemsWithShortcutForKey(items, keyCode, event);
        }
        final char shortcutChar = qwerty ? item.getAlphabeticShortcut() : item.getNumericShortcut();
        if (((metaState & (KeyEvent.META_SHIFT_ON | KeyEvent.META_SYM_ON)) == 0) &&
              (shortcutChar != 0) &&
              (shortcutChar == possibleChars.meta[0]
                  || shortcutChar == possibleChars.meta[2]
                  || (qwerty && shortcutChar == '\b' &&
                      keyCode == KeyEvent.KEYCODE_DEL)) &&
              item.isEnabled()) {
            items.add(item);
        }
    }
}
 

public void onKeyUp(@Nonnull final KeyEvent keyEvent) {
    if (DEBUG) {
        Log.d(TAG, "EmojiHotKeys.onKeyUp() - " + mName + " - considering " + keyEvent);
    }

    final int keyCode = keyEvent.getKeyCode();
    int metaState = keyEvent.getMetaState();
    if (KeyEvent.isModifierKey(keyCode)) {
         // Try restoring meta stat in case the released key was a modifier.
         // I am sure one can come up with scenarios to break this, but it
         // seems to work well in practice.
         metaState |= mMetaState;
    }

    final Pair<Integer, Integer> key = Pair.create(keyCode, metaState);
    if (mKeySet.contains(key)) {
        if (mCanFire) {
            if (!keyEvent.isCanceled()) {
                if (DEBUG) {
                    Log.d(TAG, "EmojiHotKeys.onKeyUp() - " + mName + " - firing action");
                }
                action();
            } else {
                // This key up event was a part of key combinations and
                // should be ignored.
                if (DEBUG) {
                    Log.d(TAG, "EmojiHotKeys.onKeyUp() - " + mName + " - canceled, ignoring action");
                }
            }
            mCanFire = false;
        }
    }

    if (mCanFire) {
        if (DEBUG) {
            Log.d(TAG, "EmojiHotKeys.onKeyUp() - " + mName + " - disabling action");
        }
        mCanFire = false;
    }
}
 

@Override
public boolean dispatchKeyEvent(KeyEvent event) {

    int keycode = event.getKeyCode();
    if ( !mCtrlPreIme ){
        // CTRL + KEYDOWN
        int meta = (int)event.getMetaState();
        boolean ctrl = (meta & mShortcutCtrlKey)!=0 ; // one of meta keies is pressed

        if ( ctrl ){
            if (event.getAction() == KeyEvent.ACTION_DOWN ){
                Log.d("=================>", ""+keycode);
                if (doShortcut(keycode)){
                    return true;
                }
            }else if (event.getAction() == KeyEvent.ACTION_UP){
                return true;
            }
        }
    }
    if ( IS01FullScreen.isIS01orLynx() ){
        if ( keycode == KeyEvent.KEYCODE_PAGE_UP ||
             keycode == KeyEvent.KEYCODE_PAGE_DOWN ){
            return true;
        }
    }
    return super.dispatchKeyEvent(event);
}
 

@SuppressWarnings("deprecation")
void findItemsWithShortcutForKey(List<MenuItemImpl> items, int keyCode, KeyEvent event) {
    final boolean qwerty = isQwertyMode();
    final int metaState = event.getMetaState();
    final KeyCharacterMap.KeyData possibleChars = new KeyCharacterMap.KeyData();
    // Get the chars associated with the keyCode (i.e using any chording combo)
    final boolean isKeyCodeMapped = event.getKeyData(possibleChars);
    // The delete key is not mapped to '\b' so we treat it specially
    if (!isKeyCodeMapped && (keyCode != KeyEvent.KEYCODE_DEL)) {
        return;
    }

    // Look for an item whose shortcut is this key.
    final int N = mItems.size();
    for (int i = 0; i < N; i++) {
        MenuItemImpl item = mItems.get(i);
        if (item.hasSubMenu()) {
            ((MenuBuilder)item.getSubMenu()).findItemsWithShortcutForKey(items, keyCode, event);
        }
        final char shortcutChar = qwerty ? item.getAlphabeticShortcut() : item.getNumericShortcut();
        if (((metaState & (KeyEvent.META_SHIFT_ON | KeyEvent.META_SYM_ON)) == 0) &&
              (shortcutChar != 0) &&
              (shortcutChar == possibleChars.meta[0]
                  || shortcutChar == possibleChars.meta[2]
                  || (qwerty && shortcutChar == '\b' &&
                      keyCode == KeyEvent.KEYCODE_DEL)) &&
              item.isEnabled()) {
            items.add(item);
        }
    }
}
 

public void onKeyUp(@Nonnull final KeyEvent keyEvent) {
    if (DEBUG) {
        Log.d(TAG, "EmojiHotKeys.onKeyUp() - " + mName + " - considering " + keyEvent);
    }

    final int keyCode = keyEvent.getKeyCode();
    int metaState = keyEvent.getMetaState();
    if (KeyEvent.isModifierKey(keyCode)) {
         // Try restoring meta stat in case the released key was a modifier.
         // I am sure one can come up with scenarios to break this, but it
         // seems to work well in practice.
         metaState |= mMetaState;
    }

    final Pair<Integer, Integer> key = Pair.create(keyCode, metaState);
    if (mKeySet.contains(key)) {
        if (mCanFire) {
            if (!keyEvent.isCanceled()) {
                if (DEBUG) {
                    Log.d(TAG, "EmojiHotKeys.onKeyUp() - " + mName + " - firing action");
                }
                action();
            } else {
                // This key up event was a part of key combinations and
                // should be ignored.
                if (DEBUG) {
                    Log.d(TAG, "EmojiHotKeys.onKeyUp() - " + mName + " - canceled, ignoring action");
                }
            }
            mCanFire = false;
        }
    }

    if (mCanFire) {
        if (DEBUG) {
            Log.d(TAG, "EmojiHotKeys.onKeyUp() - " + mName + " - disabling action");
        }
        mCanFire = false;
    }
}
 

@SuppressWarnings("deprecation")
MenuItemImpl findItemWithShortcutForKey(int keyCode, KeyEvent event) {
    // Get all items that can be associated directly or indirectly with the keyCode
    ArrayList<MenuItemImpl> items = mTempShortcutItemList;
    items.clear();
    findItemsWithShortcutForKey(items, keyCode, event);

    if (items.isEmpty()) {
        return null;
    }

    final int metaState = event.getMetaState();
    final KeyCharacterMap.KeyData possibleChars = new KeyCharacterMap.KeyData();
    // Get the chars associated with the keyCode (i.e using any chording combo)
    event.getKeyData(possibleChars);

    // If we have only one element, we can safely returns it
    final int size = items.size();
    if (size == 1) {
        return items.get(0);
    }

    final boolean qwerty = isQwertyMode();
    // If we found more than one item associated with the key,
    // we have to return the exact match
    for (int i = 0; i < size; i++) {
        final MenuItemImpl item = items.get(i);
        final char shortcutChar = qwerty ? item.getAlphabeticShortcut() :
                item.getNumericShortcut();
        if ((shortcutChar == possibleChars.meta[0] &&
                (metaState & KeyEvent.META_ALT_ON) == 0)
            || (shortcutChar == possibleChars.meta[2] &&
                (metaState & KeyEvent.META_ALT_ON) != 0)
            || (qwerty && shortcutChar == '\b' &&
                keyCode == KeyEvent.KEYCODE_DEL)) {
            return item;
        }
    }
    return null;
}
 

@Override
public boolean onKeyPreIme(int keyCode, KeyEvent event) {
    if (sTrapAltAndMeta) {
        boolean altEsc = mKeyListener.getAltSendsEsc();
        boolean altOn = (event.getMetaState() & KeyEvent.META_ALT_ON) != 0;
        boolean metaOn = (event.getMetaState() & KeyEvent.META_META_ON) != 0;
        boolean altPressed = (keyCode == KeyEvent.KEYCODE_ALT_LEFT)
                || (keyCode == KeyEvent.KEYCODE_ALT_RIGHT);
        boolean altActive = mKeyListener.isAltActive();
        if (altEsc && (altOn || altPressed || altActive || metaOn)) {
            if (event.getAction() == KeyEvent.ACTION_DOWN) {
                return onKeyDown(keyCode, event);
            } else {
                return onKeyUp(keyCode, event);
            }
        }
    }

    if (handleHardwareControlKey(keyCode, event)) {
        return true;
    }

    if (mKeyListener.isCtrlActive()) {
        if (event.getAction() == KeyEvent.ACTION_DOWN) {
            return onKeyDown(keyCode, event);
        } else {
            return onKeyUp(keyCode, event);
        }
    }

    return super.onKeyPreIme(keyCode, event);
}
 

@SuppressWarnings("deprecation")
void findItemsWithShortcutForKey(List<MenuItemImpl> items, int keyCode, KeyEvent event) {
    final boolean qwerty = isQwertyMode();
    final int metaState = event.getMetaState();
    final KeyCharacterMap.KeyData possibleChars = new KeyCharacterMap.KeyData();
    // Get the chars associated with the keyCode (i.e using any chording combo)
    final boolean isKeyCodeMapped = event.getKeyData(possibleChars);
    // The delete key is not mapped to '\b' so we treat it specially
    if (!isKeyCodeMapped && (keyCode != KeyEvent.KEYCODE_DEL)) {
        return;
    }

    // Look for an item whose shortcut is this key.
    final int N = mItems.size();
    for (int i = 0; i < N; i++) {
        MenuItemImpl item = mItems.get(i);
        if (item.hasSubMenu()) {
            ((MenuBuilder)item.getSubMenu()).findItemsWithShortcutForKey(items, keyCode, event);
        }
        final char shortcutChar = qwerty ? item.getAlphabeticShortcut() : item.getNumericShortcut();
        if (((metaState & (KeyEvent.META_SHIFT_ON | KeyEvent.META_SYM_ON)) == 0) &&
              (shortcutChar != 0) &&
              (shortcutChar == possibleChars.meta[0]
                  || shortcutChar == possibleChars.meta[2]
                  || (qwerty && shortcutChar == '\b' &&
                      keyCode == KeyEvent.KEYCODE_DEL)) &&
              item.isEnabled()) {
            items.add(item);
        }
    }
}
 

@SuppressWarnings("deprecation")
MenuItemImpl findItemWithShortcutForKey(int keyCode, KeyEvent event) {
    // Get all items that can be associated directly or indirectly with the keyCode
    ArrayList<MenuItemImpl> items = mTempShortcutItemList;
    items.clear();
    findItemsWithShortcutForKey(items, keyCode, event);

    if (items.isEmpty()) {
        return null;
    }

    final int metaState = event.getMetaState();
    final KeyCharacterMap.KeyData possibleChars = new KeyCharacterMap.KeyData();
    // Get the chars associated with the keyCode (i.e using any chording combo)
    event.getKeyData(possibleChars);

    // If we have only one element, we can safely returns it
    final int size = items.size();
    if (size == 1) {
        return items.get(0);
    }

    final boolean qwerty = isQwertyMode();
    // If we found more than one item associated with the key,
    // we have to return the exact match
    for (int i = 0; i < size; i++) {
        final MenuItemImpl item = items.get(i);
        final char shortcutChar = qwerty ? item.getAlphabeticShortcut() :
                item.getNumericShortcut();
        if ((shortcutChar == possibleChars.meta[0] &&
                (metaState & KeyEvent.META_ALT_ON) == 0)
            || (shortcutChar == possibleChars.meta[2] &&
                (metaState & KeyEvent.META_ALT_ON) != 0)
            || (qwerty && shortcutChar == '\b' &&
                keyCode == KeyEvent.KEYCODE_DEL)) {
            return item;
        }
    }
    return null;
}
 

@SuppressWarnings("deprecation")
void findItemsWithShortcutForKey(List<MenuItemImpl> items, int keyCode, KeyEvent event) {
    final boolean qwerty = isQwertyMode();
    final int metaState = event.getMetaState();
    final KeyCharacterMap.KeyData possibleChars = new KeyCharacterMap.KeyData();
    // Get the chars associated with the keyCode (i.e using any chording combo)
    final boolean isKeyCodeMapped = event.getKeyData(possibleChars);
    // The delete key is not mapped to '\b' so we treat it specially
    if (!isKeyCodeMapped && (keyCode != KeyEvent.KEYCODE_DEL)) {
        return;
    }

    // Look for an item whose shortcut is this key.
    final int N = mItems.size();
    for (int i = 0; i < N; i++) {
        MenuItemImpl item = mItems.get(i);
        if (item.hasSubMenu()) {
            ((MenuBuilder)item.getSubMenu()).findItemsWithShortcutForKey(items, keyCode, event);
        }
        final char shortcutChar = qwerty ? item.getAlphabeticShortcut() : item.getNumericShortcut();
        if (((metaState & (KeyEvent.META_SHIFT_ON | KeyEvent.META_SYM_ON)) == 0) &&
              (shortcutChar != 0) &&
              (shortcutChar == possibleChars.meta[0]
                  || shortcutChar == possibleChars.meta[2]
                  || (qwerty && shortcutChar == '\b' &&
                      keyCode == KeyEvent.KEYCODE_DEL)) &&
              item.isEnabled()) {
            items.add(item);
        }
    }
}
 

@SuppressWarnings("deprecation")
MenuItemImpl findItemWithShortcutForKey(int keyCode, KeyEvent event) {
    // Get all items that can be associated directly or indirectly with the keyCode
    ArrayList<MenuItemImpl> items = mTempShortcutItemList;
    items.clear();
    findItemsWithShortcutForKey(items, keyCode, event);

    if (items.isEmpty()) {
        return null;
    }

    final int metaState = event.getMetaState();
    final KeyCharacterMap.KeyData possibleChars = new KeyCharacterMap.KeyData();
    // Get the chars associated with the keyCode (i.e using any chording combo)
    event.getKeyData(possibleChars);

    // If we have only one element, we can safely returns it
    final int size = items.size();
    if (size == 1) {
        return items.get(0);
    }

    final boolean qwerty = isQwertyMode();
    // If we found more than one item associated with the key,
    // we have to return the exact match
    for (int i = 0; i < size; i++) {
        final MenuItemImpl item = items.get(i);
        final char shortcutChar = qwerty ? item.getAlphabeticShortcut() :
                item.getNumericShortcut();
        if ((shortcutChar == possibleChars.meta[0] &&
                (metaState & KeyEvent.META_ALT_ON) == 0)
            || (shortcutChar == possibleChars.meta[2] &&
                (metaState & KeyEvent.META_ALT_ON) != 0)
            || (qwerty && shortcutChar == '\b' &&
                keyCode == KeyEvent.KEYCODE_DEL)) {
            return item;
        }
    }
    return null;
}
 

public boolean handleKeyCode(int keyCode, KeyEvent event, boolean appMode) throws IOException {
    String code = null;
    if (event != null) {
        int keyMod = 0;
        // META_CTRL_ON was added only in API 11, so don't use it,
        // use our own tracking of Ctrl key instead.
        // (event.getMetaState() & META_CTRL_ON) != 0
        if (mHardwareControlKey || mControlKey.isActive()) {
            keyMod |= KEYMOD_CTRL;
        }
        if ((event.getMetaState() & META_ALT_ON) != 0) {
            keyMod |= KEYMOD_ALT;
        }
        if ((event.getMetaState() & META_SHIFT_ON) != 0) {
            keyMod |= KEYMOD_SHIFT;
        }
        // First try to map scancode
        code = mKeyMap.get(event.getScanCode() | KEYMOD_SCAN | keyMod);
        if (code == null) {
            code = mKeyMap.get(keyCode | keyMod);
        }
    }

    if (code == null && keyCode >= 0 && keyCode < mKeyCodes.length) {
        if (appMode) {
            code = mAppKeyCodes[keyCode];
        }
        if (code == null) {
            code = mKeyCodes[keyCode];
        }
    }

    if (code != null) {
        if (EmulatorDebug.LOG_CHARACTERS_FLAG) {
            byte[] bytes = code.getBytes();
            Log.d(EmulatorDebug.LOG_TAG, "Out: '" + EmulatorDebug.bytesToString(bytes, 0, bytes.length) + "'");
        }
        mTermSession.write(code);
        return true;
    }
    return false;
}
 

/**
 * Gets the state of the meta keys for a specific key event.
 *
 * For input devices that use toggled key modifiers, the `toggled' state
 * is stored into the text buffer. This method retrieves the meta state
 * for this event, accounting for the stored state. If the event has been
 * created by a device that does not support toggled key modifiers, like
 * a virtual device for example, the stored state is ignored.
 *
 * @param text the buffer in which the meta key would have been pressed.
 * @param event the event for which to evaluate the meta state.
 * @return an integer in which each bit set to one represents a pressed
 *         or locked meta key.
 */
public static final int getMetaState(final CharSequence text, final KeyEvent event) {
    int metaState = event.getMetaState();
    if (event.getKeyCharacterMap().getModifierBehavior()
            == KeyCharacterMap.MODIFIER_BEHAVIOR_CHORDED_OR_TOGGLED) {
        metaState |= getMetaState(text);
    }
    return metaState;
}