/**
* is called after a reparent has taken place to fix up the focus chain(s)
*/
void QGraphicsWidgetPrivate::fixFocusChainBeforeReparenting(QGraphicsWidget *newParent, QGraphicsScene *oldScene, QGraphicsScene *newScene)
{
Q_Q(QGraphicsWidget);
Q_ASSERT(focusNext && focusPrev);
QGraphicsWidget *n = q; //last one in 'new' list
QGraphicsWidget *o = 0; //last one in 'old' list
QGraphicsWidget *w = focusNext;
QGraphicsWidget *firstOld = 0;
bool wasPreviousNew = true;
while (w != q) {
bool isCurrentNew = q->isAncestorOf(w);
if (isCurrentNew) {
if (!wasPreviousNew) {
n->d_func()->focusNext = w;
w->d_func()->focusPrev = n;
}
n = w;
} else /*if (!isCurrentNew)*/ {
if (wasPreviousNew) {
if (o) {
o->d_func()->focusNext = w;
w->d_func()->focusPrev = o;
} else {
firstOld = w;
}
}
o = w;
}
w = w->d_func()->focusNext;
wasPreviousNew = isCurrentNew;
}
// repair the 'old' chain
if (firstOld) {
o->d_func()->focusNext = firstOld;
firstOld->d_func()->focusPrev = o;
}
// update tabFocusFirst for oldScene if the item is going to be removed from oldScene
if (newParent)
newScene = newParent->scene();
if (oldScene && newScene != oldScene)
oldScene->d_func()->tabFocusFirst = (firstOld && firstOld->scene() == oldScene) ? firstOld : 0;
QGraphicsItem *topLevelItem = newParent ? newParent->topLevelItem() : 0;
QGraphicsWidget *topLevel = 0;
if (topLevelItem && topLevelItem->isWidget())
topLevel = static_cast<QGraphicsWidget *>(topLevelItem);
if (topLevel && newParent) {
QGraphicsWidget *last = topLevel->d_func()->focusPrev;
// link last with new chain
last->d_func()->focusNext = q;
focusPrev = last;
// link last in chain with
topLevel->d_func()->focusPrev = n;
n->d_func()->focusNext = topLevel;
} else {
// q is the start of the focus chain
n->d_func()->focusNext = q;
focusPrev = n;
}
}
/* short show (); */
NS_IMETHODIMP
nsFilePicker::Show(PRInt16* aReturn)
{
nsCAutoString directory;
if (mDisplayDirectory) {
mDisplayDirectory->GetNativePath(directory);
}
QStringList filters;
PRUint32 count = mFilters.Length();
for (PRUint32 i = 0; i < count; ++i) {
filters.append(mFilters[i].get());
}
QGraphicsWidget* parentWidget = 0;
if (mParent) {
parentWidget = static_cast<QGraphicsWidget*>
(mParent->GetNativeData(NS_NATIVE_WIDGET));
}
QWidget* parentQWidget = 0;
if (parentWidget && parentWidget->scene()) {
if (parentWidget->scene()->views().size()>0) {
parentQWidget = parentWidget->scene()->views()[0];
}
}
QStringList files;
QString selected;
switch (mMode) {
case nsIFilePicker::modeOpen:
selected = MozFileDialog::getOpenFileName(parentQWidget, mCaption,
directory.get(), filters.join(";"));
if (selected.isNull()) {
*aReturn = nsIFilePicker::returnCancel;
return NS_OK;
}
break;
case nsIFilePicker::modeOpenMultiple:
files = MozFileDialog::getOpenFileNames(parentQWidget, mCaption,
directory.get(), filters.join(";"));
if (files.empty()) {
*aReturn = nsIFilePicker::returnCancel;
return NS_OK;
}
selected = files[0];
break;
case nsIFilePicker::modeSave:
{
nsCOMPtr<nsIFile> targetFile;
NS_GetSpecialDirectory(NS_UNIX_XDG_DOCUMENTS_DIR,
getter_AddRefs(targetFile));
if (!targetFile) {
// failed to get the XDG directory, using $HOME for now
NS_GetSpecialDirectory(NS_UNIX_HOME_DIR,
getter_AddRefs(targetFile));
}
if (targetFile) {
targetFile->Append(mDefault);
nsString targetPath;
targetFile->GetPath(targetPath);
bool exists = false;
targetFile->Exists(&exists);
if (exists) {
// file exists already create temporary filename
QTemporaryFile temp(QString::fromUtf16(targetPath.get()));
temp.open();
selected = temp.fileName();
temp.close();
} else {
selected = QString::fromUtf16(targetPath.get());
}
}
}
break;
case nsIFilePicker::modeGetFolder:
selected = MozFileDialog::getExistingDirectory(parentQWidget, mCaption,
directory.get());
if (selected.isNull()) {
*aReturn = nsIFilePicker::returnCancel;
return NS_OK;
}
break;
default:
break;
}
if (!selected.isEmpty()) {
QString path = QFile::encodeName(selected);
mFile.Assign(path.toUtf8().data());
}
*aReturn = nsIFilePicker::returnOK;
if (mMode == modeSave) {
nsCOMPtr<nsIFile> file;
GetFile(getter_AddRefs(file));
if (file) {
bool exists = false;
file->Exists(&exists);
if (exists) {
*aReturn = nsIFilePicker::returnReplace;
}
}
}
return NS_OK;
}