Impossible to cancel a delete task

Observed behavior

When a delete task has been initiated, it seems impossible to cancel. On tasks with lower number of resources to delete, it apparently finishes before one even manages to click the Cancel button, and on tasks with more resources selected to delete, the button does not seem active at all, and the task continues without allowing the user to cancel.

Plus there’s still something iffy about the annotation. Above I imported around 500 MB from the KA-BG channel, but after selecting around 400 MB to delete, and without me being able to cancel - it reports 1GB deleted! To top it off Manage channel still reports all resources as present on the device, even though that amount/size of resources is clearly not present on the device HD.

Expected behavior

Ability to cancel a delete task after it’s started. Correctly reported number and size of resources remaining/present on the device.

User-facing consequences

Inability to correct the error, unmet expectations regarding the available space & resources on the device.

Errors and logs

cancel-delete-logs.zip

Steps to reproduce

Start a delete task and try to cancel.

Context

• Kolibri version: 0.13.0b4
• Operating system: Windows 7
• Browser: both Chrome & FF

[rtibbles]

Well conditionalizing it based on the cancellable property of the task is the most efficient way to hide it when it should be hidden!

[radinamatic]

Dealer’s choice! If making the UI conditionalize its availability is not that much more work than just hiding the button, I’d say go for it!