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Implement conditional autoscroll in log monitor

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Improves the user experience in the monitor tab by making the log output autoscroll conditional.

Autoscrolling is now disabled when the user selects a log entry other than the last one, allowing them to inspect previous output without interruption. Selecting the last item in the list re-enables autoscrolling.
This commit is contained in:
rbalsleyMSFT
2025-07-14 17:56:51 -07:00
parent 315f0f3858
commit ca84f4dfea
2 changed files with 40 additions and 2 deletions
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FFUDevelopment/BuildFFUVM_UI.ps1
+15 -2
View File
@@ -120,9 +120,10 @@ $script:uiState.Controls.btnRun.Add_Click({
# Switch to Monitor Tab
$script:uiState.Controls.MainTabControl.SelectedItem = $script:uiState.Controls.MonitorTab
# Clear previous log data
# Clear previous log data and reset autoscroll
if ($null -ne $script:uiState.Data.logData) {
$script:uiState.Data.logData.Clear()
$script:uiState.Flags.autoScrollLog = $true
}
$progressBar = $script:uiState.Controls.pbOverallProgress
@@ -201,7 +202,10 @@ $script:uiState.Controls.btnRun.Add_Click({
while ($null -ne ($line = $script:uiState.Data.logStreamReader.ReadLine())) {
# Add the full line to the log view first to maintain consistency
$script:uiState.Data.logData.Add($line)
$script:uiState.Controls.lstLogOutput.ScrollIntoView($line)
if ($script:uiState.Flags.autoScrollLog) {
$script:uiState.Controls.lstLogOutput.ScrollIntoView($line)
$script:uiState.Controls.lstLogOutput.SelectedIndex = $script:uiState.Controls.lstLogOutput.Items.Count - 1
}
# Now, check if it's a progress line and update the UI accordingly
if ($line -match '\[PROGRESS\] (\d{1,3}) \| (.*)') {
@@ -234,9 +238,11 @@ $script:uiState.Controls.btnRun.Add_Click({
# Final read of the log stream
if ($null -ne $script:uiState.Data.logStreamReader) {
$lastLine = $null
while ($null -ne ($line = $script:uiState.Data.logStreamReader.ReadLine())) {
# Add the full line to the log view first
$script:uiState.Data.logData.Add($line)
$lastLine = $line
# Now, check if it's a progress line and update the UI accordingly
if ($line -match '\[PROGRESS\] (\d{1,3}) \| (.*)') {
@@ -247,6 +253,13 @@ $script:uiState.Controls.btnRun.Add_Click({
$script:uiState.Controls.txtStatus.Text = $message
}
}
# After the final read, scroll to the last line if autoscroll is enabled
if ($script:uiState.Flags.autoScrollLog -and $null -ne $lastLine) {
$script:uiState.Controls.lstLogOutput.ScrollIntoView($lastLine)
$script:uiState.Controls.lstLogOutput.SelectedIndex = $script:uiState.Controls.lstLogOutput.Items.Count - 1
}
$script:uiState.Data.logStreamReader.Close()
$script:uiState.Data.logStreamReader.Dispose()
$script:uiState.Data.logStreamReader = $null