Filament loading state fixes#3564

Merged

3d-gussner merged 6 commits intoprusa3d:MK3from

wavexx:fil_loading_state

Jul 26, 2023

Commits on Jul 25, 2023

Consider any lcd_custom_command to be "ACTIVE"

wavexx
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gudnimg
committed
Set/clear loading_flag also during unload

wavexx
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gudnimg
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Do not allow filament actions while an existing one is taking place

wavexx
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gudnimg
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Refuse to start a SD print until filament loading is complete

wavexx
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gudnimg
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Consistently replace loading_flag with eFilamentAction

wavexx
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gudnimg
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Improve FilamentAction comments

wavexx
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gudnimg
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