KPopupMenu::KPopupMenu(QWidget *parent, const char *name)
: QPopupMenu(parent, name)
{
d = new KPopupMenuPrivate;
resetKeyboardVars();
connect(&(d->clearTimer), SIGNAL(timeout()), SLOT(resetKeyboardVars()));
}
KMenu::KMenuPrivate::KMenuPrivate (KMenu *_parent)
: parent(_parent)
, noMatches(false)
, shortcuts(false)
, autoExec(false)
, lastHitAction(0L)
, lastHoveredAction(0L)
, mouseButtons(Qt::NoButton)
, keyboardModifiers(Qt::NoModifier)
, ctxMenu(0)
, highlightedAction(0)
{
resetKeyboardVars();
KAcceleratorManager::manage(parent);
}
KMenu::KMenu( const QString & title, QWidget * parent )
: QMenu(title, parent)
, d(new KMenuPrivate(this))
{
connect(&(d->clearTimer), SIGNAL(timeout()), SLOT(resetKeyboardVars()));
}
void KPopupMenu::resetKeyboardVars()
{
resetKeyboardVars(false);
}
void KPopupMenu::keyPressEvent(QKeyEvent* e)
{
if (!d->shortcuts) {
// continue event processing by Qpopup
//e->ignore();
QPopupMenu::keyPressEvent(e);
return;
}
int i = 0;
bool firstpass = true;
QString keyString = e->text();
// check for common commands dealt with by QPopup
int key = e->key();
if (key == Key_Escape || key == Key_Return || key == Key_Enter
|| key == Key_Up || key == Key_Down || key == Key_Left
|| key == Key_Right || key == Key_F1) {
resetKeyboardVars();
// continue event processing by Qpopup
//e->ignore();
QPopupMenu::keyPressEvent(e);
return;
}
// check to see if the user wants to remove a key from the sequence (backspace)
// or clear the sequence (delete)
if (d->keySeq != QString::null) {
if (key == Key_Backspace) {
if (d->keySeq.length() == 1) {
resetKeyboardVars();
return;
}
// keep the last sequence in keyString
keyString = d->keySeq.left(d->keySeq.length() - 1);
// allow sequence matching to be tried again
resetKeyboardVars();
} else if (key == Key_Delete) {
resetKeyboardVars();
// clear active item
setActiveItem(0);
return;
} else if (d->noMatches) {
// clear if there are no matches
resetKeyboardVars();
// clear active item
setActiveItem(0);
} else {
// the key sequence is not a null string
// therefore the lastHitIndex is valid
i = d->lastHitIndex;
}
} else if (key == Key_Backspace && parentMenu) {
// backspace with no chars in the buffer... go back a menu.
hide();
resetKeyboardVars();
return;
}
d->keySeq += keyString;
int seqLen = d->keySeq.length();
for (; i < (int)count(); i++) {
// compare typed text with text of this entry
int j = idAt(i);
// don't search disabled entries
if (!isItemEnabled(j))
continue;
QString thisText;
// retrieve the right text
// (the last selected item one may have additional ampersands)
if (i == d->lastHitIndex)
thisText = d->originalText;
else
thisText = text(j);
// if there is an accelerator present, remove it
if ((int)accel(j) != 0)
thisText = thisText.replace(QRegExp("&"), "");
// chop text to the search length
thisText = thisText.left(seqLen);
// do the search
if (thisText.find(d->keySeq, 0, false) == 0) {
if (firstpass) {
// match
setActiveItem(i);
// check to see if we're underlining a different item
if (d->lastHitIndex != i)
// yes; revert the underlining
changeItem(idAt(d->lastHitIndex), d->originalText);
// set the original text if it's a different item
if (d->lastHitIndex != i || d->lastHitIndex == -1)
d->originalText = text(j);
// underline the currently selected item
changeItem(j, underlineText(d->originalText, d->keySeq.length()));
// remeber what's going on
d->lastHitIndex = i;
// start/restart the clear timer
d->clearTimer.start(5000, true);
// go around for another try, to see if we can execute
firstpass = false;
} else {
// don't allow execution
return;
}
}
// fall through to allow execution
}
if (!firstpass) {
if (d->autoExec) {
// activate anything
activateItemAt(d->lastHitIndex);
resetKeyboardVars();
} else if (findItem(idAt(d->lastHitIndex)) &&
findItem(idAt(d->lastHitIndex))->popup()) {
// only activate sub-menus
activateItemAt(d->lastHitIndex);
resetKeyboardVars();
}
return;
}
// no matches whatsoever, clean up
resetKeyboardVars(true);
//e->ignore();
QPopupMenu::keyPressEvent(e);
}
/**
* This is re-implemented for keyboard navigation.
*/
void KPopupMenu::closeEvent(QCloseEvent*)
{
if (d->shortcuts)
resetKeyboardVars();
}
