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Rework session initialization to return to the Qt event loop while connecting

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We also display multiple launch warnings at the same time
This commit is contained in:
Cameron Gutman 2025-11-22 16:51:45 -06:00
commit 54283ce0a1
3 changed files with 84 additions and 143 deletions
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66
app/gui/StreamSegue.qml
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@ -48,18 +48,6 @@ Item {
console.error(text)
}
function displayLaunchWarning(text)
{
// This toast appears for 3 seconds, just shorter than how long
// Session will wait for it to be displayed. This gives it time
// to transition to invisible before continuing.
var toast = Qt.createQmlObject('import QtQuick.Controls 2.2; ToolTip {}', parent, '')
toast.text = text
toast.timeout = 3000
toast.visible = true
console.warn(text)
}
function quitStarting()
{
// Avoid the push transition animation
@ -132,7 +120,6 @@ Item {
session.stageFailed.connect(stageFailed)
session.connectionStarted.connect(connectionStarted)
session.displayLaunchError.connect(displayLaunchError)
session.displayLaunchWarning.connect(displayLaunchWarning)
session.quitStarting.connect(quitStarting)
session.sessionFinished.connect(sessionFinished)
session.readyForDeletion.connect(sessionReadyForDeletion)
@ -154,6 +141,19 @@ Item {
onTriggered: stageSpinner.visible = true
}
Timer {
id: startSessionTimer
onTriggered: {
// Garbage collect QML stuff before we start streaming,
// since we'll probably be streaming for a while and we
// won't be able to GC during the stream.
gc()
// Run the streaming session to completion
session.start()
}
}
Loader {
id: streamLoader
active: false
@ -170,13 +170,41 @@ Item {
// Stop GUI gamepad usage now
SdlGamepadKeyNavigation.disable()
// Garbage collect QML stuff before we start streaming,
// since we'll probably be streaming for a while and we
// won't be able to GC during the stream.
gc()
// Initialize the session and probe for host/client capabilities
if (!session.initialize(window)) {
sessionFinished(0);
sessionReadyForDeletion();
return;
}
// Run the streaming session to completion
session.exec(window)
// Don't wait unless we have toasts to display
startSessionTimer.interval = 0
// Display the toasts together in a vertical centered arrangement
var yOffset = 0
for (var i = 0; i < session.launchWarnings.length; i++) {
var text = session.launchWarnings[i]
console.warn(text)
// Show the tooltip
var toast = Qt.createQmlObject('import QtQuick.Controls 2.2; ToolTip {}', parent, '')
toast.text = text
toast.y += yOffset
toast.visible = true
// Hide the tooltip when the connection starts or fails
session.connectionStarted.connect(toast.hide)
session.sessionFinished.connect(toast.hide)
// Offset the next toast below the previous one
yOffset = toast.y + toast.padding + toast.height
// Allow the user 3.5 seconds to read the tooltip(s)
startSessionTimer.interval = 3500;
}
// Start the timer to wait for toasts (or start the session immediately)
startSessionTimer.start()
}
sourceComponent: Item {}