Cancelling Wipe Available Disk Space feature should provide feedback to user
Originally created by @huertanix on #16066 (Redmine)
The current user flow for cancelling a Wipe Available Disk Space process:
When using the “Wipe Available Disk Space” feature on a 4GB FAT formatted drive, the process seemed to be taking to long so a user cancelled, after which a confirmation dialog appears and “Cancel operation” is pressed. When that happens, the confirmation dialog disappears but the Wipe Available Disk Space dialog is still there, unchanged, and seems like it’s ignoring the cancel request for a period of time close to a minute before a cryptic message finally appears to confirm it was cancelled.
Ideally, this flow should change so that when a user confirms the cancellation, the Wipe Available Disk Space dialog should change to indicate that the cancellation is being processed. This can be as simple as changing the “Wiping available disk space…” copy to “Cancelling…” Instead of seeing a cryptic message when the cancellation kicks in, the displayed cancellation confirmation should just say that the wipe was cancelled.