delete_file_worker:
; in: ecx=flags: 1=deleting directory
; out: eax=0 - OK, eax=1 - retry, eax=2 - skip, eax=-1 - cancel,
; PF, ZF, CF and SF set accordingly to 'cmp eax,2' (or 'cmp al,2')
push ebx
push 70
pop eax
mov ebx, delinfo
int 0x40
pop ebx
test eax, eax
jz .ret
cmp [del_bSkipAll], 0
jz @f
push 2
pop eax
jmp .ret
@@:
push execdata
push aCannotDeleteFolder
test cl, 1
jnz @f
mov dword [esp], aCannotDeleteFile
@@:
call get_error_msg
push eax
mov eax, esp
push DeleteErrorBtn
push 4
push eax
push 3
push -1
push -1
push aError
call SayErr
add esp, 3*4
cmp al, -1
jz @f
inc eax
cmp al, 4 ; "cancel" button
jnz @f
or eax, -1
@@:
cmp al, 3 ; "skip all" button
jnz .ret
mov [del_bSkipAll], 1
dec eax
.ret:
cmp al, 2
ret
delete_file:
; in: eax->BDFE block
; out: CF and ZF not set <=> cancel job ("ja cancel_label")
pushad
mov [del_dir_stack_ptr], del_dir_stack
lea esi, [ebp + panel1_dir - panel1_data]
mov edi, execdata
@@:
lodsb
test al, al
jz @f
stosb
jmp @b
@@:
mov esi, [esp+28]
mov ecx, esi
add esi, 40
mov al, '/'
stosb
.l1:
lodsb
cmp edi, execdataend
jb @f
call panels_OnKey.bigfilename
popad
ret
@@:
stosb
test al, al
jnz .l1
mov ecx, [esp+28]
test byte [ecx], 10h
jnz .delete_dir
.retrydel:
xor ecx, ecx
call delete_file_worker
jae @f
jp .retrydel
@@:
popad
ret
.delete_dir:
; recursive delete of directory
xor ebp, ebp ; ebp will contain number of undeletable items
.return_from_recursion:
mov ebx, dirinfo
mov [ebx+dirinfo.first-dirinfo], ebp
mov [ebx+dirinfo.size-dirinfo], del_dir_query_size
mov [ebx+dirinfo.dirdata-dirinfo], del_dir_query_area
mov [ebx+dirinfo.name-dirinfo], execdata
push 70
pop eax
int 0x40
; if we get read error, the best available action is try to delete directory itself
test eax, eax
jz @f
cmp eax, 6
jnz .do_delete_dir
@@:
; loop through a directory and delete items
mov edx, del_dir_query_area+32
imul ebx, 304
add ebx, edx
.delete_dir_entry_loop:
cmp edx, ebx
jae .delete_dir_entry_done
; ignore special entries "." and ".."
inc ebp
cmp word [edx+40], '.'
jz .delete_dir_entry_continue
cmp word [edx+40], '..'
jnz @f
cmp byte [edx+42], 0
jz .delete_dir_entry_continue
@@:
dec ebp
mov esi, execdata
@@:
lodsb
test al, al
jnz @b
mov byte [esi-1], '/'
mov edi, esi
lea esi, [edx+40]
@@:
cmp edi, execdataend
jae .fullname_big
lodsb
stosb
test al, al
jnz @b
test byte [edx], 10h
jnz .entry_is_folder
.retry2:
xor ecx, ecx
call delete_file_worker
ja .cancel
jz .skip
jp .retry2
jmp .restore_name
.entry_is_folder:
; allocate new item in directory stack
mov eax, [del_dir_stack_ptr]
mov [eax], ebp
add eax, 4
mov [del_dir_stack_ptr], eax
; do recursive deleting
jmp .delete_dir
.fullname_big:
; we will just ignore such files and continue - in real life this situation can not happen
inc ebp
mov esi, execdataend-1
jmp .do_restore_name
.skip:
inc ebp
.restore_name:
mov esi, execdata
@@:
lodsb
test al, al
jnz @b
dec esi
dec esi
.do_restore_name:
std
@@:
lodsb
cmp al, '/'
jnz @b
cld
mov byte [esi+1], 0
.delete_dir_entry_continue:
add edx, 304
jmp .delete_dir_entry_loop
.delete_dir_entry_done:
.do_delete_dir:
mov cl, 1
call delete_file_worker
ja .cancel
jz @f
jp .delete_dir
@@:
; al=0 - OK, al=2 - skip this directory
; return to previous directory
; pop item from directory stack
mov ecx, [del_dir_stack_ptr]
cmp ecx, del_dir_stack
jbe .done
sub ecx, 4
mov [del_dir_stack_ptr], ecx
mov ebp, [ecx]
cmp al, 2
sbb ebp, -1
; restore prev directory name
mov esi, execdata
@@:
lodsb
test al, al
jnz @b
dec esi
dec esi
std
@@:
lodsb
cmp al, '/'
jnz @b
cld
mov byte [esi+1], 0
jmp .return_from_recursion
.done:
.cancel:
mov [dirinfo.first], 0 ; do not destroys flags
popad
ret