public void execute() {
if (!isEditable() || !isEnabled()) {
return;
}
int position = lastClickPoint != null ? viewToModel(lastClickPoint) : getCaretPosition();
lastClickPoint = null;
Document document = getDocument();
String selectedText = getSelectedText();
try {
if (selectedText != null && !CommonUtil.isEmpty(selectedText)) {
String trimmed = selectedText.trim();
if (trimmed.startsWith("<!--") && trimmed.endsWith("-->")) {
StringBuffer buffer = new StringBuffer(selectedText);
int pos = buffer.indexOf("<!--");
buffer.delete(pos, pos + 4);
pos = buffer.lastIndexOf("-->");
buffer.delete(pos, pos + 3);
replaceSelection(buffer.toString());
} else {
String newSelection = "<!--" + selectedText + "-->";
replaceSelection(newSelection);
}
} else {
final int docLen = document.getLength();
int fromIndex = Math.max(0, getText(0, position).lastIndexOf('\n'));
int toIndex = getText(fromIndex + 1, docLen - position).indexOf('\n');
toIndex = toIndex < 0 ? docLen : fromIndex + toIndex;
String textToComment = getText(fromIndex, toIndex - fromIndex + 1);
if (textToComment.startsWith("\n")) {
textToComment = textToComment.substring(1);
fromIndex++;
}
if (textToComment.endsWith("\n")) {
textToComment = textToComment.substring(0, textToComment.length() - 1);
toIndex--;
}
String trimmed = textToComment.trim();
if (trimmed.startsWith("<!--") && trimmed.endsWith("-->")) {
int pos = textToComment.lastIndexOf("-->");
document.remove(fromIndex + pos, 3);
pos = textToComment.indexOf("<!--");
document.remove(fromIndex + pos, 4);
} else {
document.insertString(Math.min(toIndex + 1, docLen), "-->", null);
document.insertString(fromIndex, "<!--", null);
}
}
} catch (BadLocationException e1) {
e1.printStackTrace();
}
}
private void onReceiveChar(char character) {
buffer.append(character);
if (buffer.charAt(buffer.length() - 1) == '\n') {
onReceiveLine(buffer.toString());
buffer.delete(0, buffer.length());
}
}
/**
* 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;
}
}