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Replace itemClicked() by currentItemChanged() in Bt device selection

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This fixes two problems:

1) Using the keybord or clicking below the list and moving the mouse
up while holding the mouse button did not properly update the status
message and the save button. For example, one could save with a non-
paired device selected.

2) The code assumed that a device is selected if the save button is
active, but the save button was not disabled on scan. Thus, one could
provoke a crash by selecting an item, scanning and then pressing save.
This problem is fixed indirectly, because the save button is now always
disabled if the selection is cleared.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
This commit is contained in:
Berthold Stoeger 2017-11-04 15:09:07 +01:00 committed by Dirk Hohndel
parent a64b70db4a
commit 617c6d3564
2 changed files with 10 additions and 5 deletions
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13
desktop-widgets/btdeviceselectiondialog.cpp
View file

@ -46,8 +46,8 @@ BtDeviceSelectionDialog::BtDeviceSelectionDialog(QWidget *parent) :
ui->save->setEnabled(false);
// Add event for item selection
connect(ui->discoveredDevicesList, SIGNAL(itemClicked(QListWidgetItem*)),
this, SLOT(itemClicked(QListWidgetItem*)));
connect(ui->discoveredDevicesList, SIGNAL(currentItemChanged(QListWidgetItem*,QListWidgetItem*)),
this, SLOT(currentItemChanged(QListWidgetItem*,QListWidgetItem*)));
#if defined(Q_OS_WIN)
ULONG ulRetCode = SUCCESS;
@ -172,7 +172,6 @@ void BtDeviceSelectionDialog::on_clear_clicked()
{
ui->dialogStatus->setText(tr("Remote devices list was cleared."));
ui->discoveredDevicesList->clear();
ui->save->setEnabled(false);
if (remoteDeviceDiscoveryAgent->isActive()) {
// Stop the SDP agent if the clear button is pressed and enable the Scan button
@ -263,8 +262,14 @@ void BtDeviceSelectionDialog::addRemoteDevice(const QBluetoothDeviceInfo &remote
ui->discoveredDevicesList->addItem(item);
}
void BtDeviceSelectionDialog::itemClicked(QListWidgetItem *item)
void BtDeviceSelectionDialog::currentItemChanged(QListWidgetItem *item, QListWidgetItem *)
{
// If the list is cleared, we get a signal with a null item pointer
if (!item) {
ui->save->setEnabled(false);
return;
}
// By default we assume that the devices are paired
QBluetoothDeviceInfo remoteDeviceInfo = item->data(Qt::UserRole).value<QBluetoothDeviceInfo>();
QString statusMessage = tr("The device %1 can be used for connection. You can press the Save button.")

2
desktop-widgets/btdeviceselectiondialog.h
View file

@ -68,7 +68,7 @@ private slots:
void remoteDeviceScanFinished();
void hostModeStateChanged(QBluetoothLocalDevice::HostMode mode);
void addRemoteDevice(const QBluetoothDeviceInfo &remoteDeviceInfo);
void itemClicked(QListWidgetItem *item);
void currentItemChanged(QListWidgetItem *item,QListWidgetItem *previous);
void displayPairingMenu(const QPoint &pos);
void pairingFinished(const QBluetoothAddress &address,QBluetoothLocalDevice::Pairing pairing);
void error(QBluetoothLocalDevice::Error error);