/** Opens a group when it's closed. */
public void openGroup() {
Object selectedValue = this.contactList.getSelectedValue();
if (selectedValue instanceof MetaContactGroup) {
MetaContactGroup group = (MetaContactGroup) selectedValue;
ContactListModel model = (ContactListModel) contactList.getModel();
if (model.isGroupClosed(group)) {
model.openGroup(group);
}
}
}
public void keyPressed(KeyEvent e) {
// Nothing to do if the contact list is empty
if (contactList.getModel().getSize() <= 0) return;
int keyCode = e.getKeyCode();
if (keyCode == KeyEvent.VK_LEFT) {
closeGroup();
} else if (keyCode == KeyEvent.VK_RIGHT) {
openGroup();
} else if (keyCode == KeyEvent.VK_ENTER) {
openOrCloseGroup();
}
}
/**
* Searches the contact list when any key, different from "space", "+" or "-" is typed. Selects
* the Contact name closest to the typed string. The time between two button presses is checked to
* determine whether the user makes a new search or a continuous search. When user types the same
* letter consecutively the search mechanism selects the next Contact name starting with the same
* letter.
*/
public void keyTyped(KeyEvent e) {
// Nothing to do if the contact list is empty
if (contactList.getModel().getSize() <= 0) return;
long eventTimestamp = e.getWhen();
char keyChar = e.getKeyChar();
if (keyChar == ' ') {
openOrCloseGroup();
} else if (keyChar == '+') {
openGroup();
} else if (keyChar == '-') {
closeGroup();
} else {
if ((lastTypedTimestamp - eventTimestamp) > 1000) {
keyBuffer.delete(0, keyBuffer.length() - 1);
}
this.lastTypedTimestamp = eventTimestamp;
this.keyBuffer.append(keyChar);
boolean selectedSameLetterContact = false;
int selectedIndex = this.contactList.getSelectedIndex();
// Check if there's any selected contact node and get its name.
if (selectedIndex != -1) {
Object selectedObject = this.contactList.getSelectedValue();
if (selectedObject instanceof MetaContact) {
String selectedContactName = ((MetaContact) selectedObject).getDisplayName();
if (selectedContactName != null) {
selectedSameLetterContact =
selectedContactName.substring(0, 1).equalsIgnoreCase(keyBuffer.toString());
}
} else if (selectedObject instanceof ConferenceChatContact) {
String selectedContactName = ((ConferenceChatContact) selectedObject).getName();
if (selectedContactName != null) {
selectedSameLetterContact =
selectedContactName.substring(0, 1).equalsIgnoreCase(keyBuffer.toString());
}
}
}
// The search starts from the beginning if:
// 1) the newly entered character is different from the last one
// or
// 2) the currently selected contact starts with a different letter
int contactIndex =
contactList.getNextMatch(
keyBuffer.toString(),
(lastTypedKey != keyChar || !selectedSameLetterContact) ? 0 : selectedIndex + 1,
Position.Bias.Forward);
int currentlySelectedIndex = this.contactList.getSelectedIndex();
if (currentlySelectedIndex != contactIndex && contactIndex != -1) {
this.contactList.setSelectedIndex(contactIndex);
currentlySelectedIndex = contactList.getSelectedIndex();
}
this.contactList.ensureIndexIsVisible(currentlySelectedIndex);
this.lastTypedKey = keyChar;
}
}