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Work around Qt 5.12 dialog crash on disconnect

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This commit is contained in:
Cameron Gutman 2019-04-23 19:40:21 -07:00
parent a05816b495
commit fa29260e09
2 changed files with 31 additions and 16 deletions
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24
app/gui/StreamSegue.qml
View File

@ -20,7 +20,7 @@ Item {
function stageFailed(stage, errorCode)
{
// Display the error dialog after Session::exec() returns
errorDialog.text = "Starting " + stage + " failed: Error " + errorCode
streamSegueErrorDialog.text = "Starting " + stage + " failed: Error " + errorCode
}
function connectionStarted()
@ -38,7 +38,7 @@ Item {
function displayLaunchError(text)
{
// Display the error dialog after Session::exec() returns
errorDialog.text = text
streamSegueErrorDialog.text = text
}
function displayLaunchWarning(text)
@ -68,9 +68,10 @@ Item {
SdlGamepadKeyNavigation.enable()
if (quitAfter) {
if (errorDialog.text) {
if (streamSegueErrorDialog.text) {
// Quit when the error dialog is acknowledged
errorDialog.open()
streamSegueErrorDialog.quitAfter = quitAfter
streamSegueErrorDialog.open()
}
else {
// Quit immediately
@ -87,8 +88,9 @@ Item {
// the Qt UI is visible again to prevent losing
// focus on the dialog which would impact gamepad
// users.
if (errorDialog.text) {
errorDialog.open()
if (streamSegueErrorDialog.text) {
streamSegueErrorDialog.quitAfter = quitAfter
streamSegueErrorDialog.open()
}
}
}
@ -171,14 +173,4 @@ Item {
wrapMode: Text.Wrap
}
ErrorMessageDialog {
id: errorDialog
onClosed: {
if (quitAfter) {
Qt.quit()
}
}
}
}

23
app/gui/main.qml
View File

@ -421,6 +421,29 @@ ApplicationWindow {
onAccepted: Qt.quit()
}
// HACK: This belongs in StreamSegue but keeping a dialog around after the parent
// dies can trigger bugs in Qt 5.12 that cause the app to crash. For now, we will
// host this dialog in a QML component that is never destroyed.
//
// To repro: Start a stream, cut the network connection to trigger the "Connection
// terminated" dialog, wait until the app grid times out back to the PC grid, then
// try to dismiss the dialog.
ErrorMessageDialog {
id: streamSegueErrorDialog
property bool quitAfter: false
onClosed: {
if (quitAfter) {
Qt.quit()
}
// StreamSegue assumes its dialog will be re-created each time we
// start streaming, so fake it by wiping out the text each time.
text = ""
}
}
NavigableDialog {
id: addPcDialog
property string label: "Enter the IP address of your GameStream PC:"