It looks like it, but no. It seems that this method's primary purpose
is teaching the reader how to use FileDirectory in a recursive manner.
As such, it's not really "important", and pulling in an external
dependency seems... excessive.

But also, I couldn't find any senders. Had I found senders, I'd
planned to use Cursor >> #showWhile: around the call sites as close to
the UI as I could.

I still think we should go with UIManager >> #indicateWaitWhile:, and
implement the existing Cursor behaviour through Notifications.

frank

On 28 June 2013 01:27, Chris Muller <asqueaker at gmail.com> wrote:
> Did you change your mind about going through UIManager
> indicateWaitWhile: [ ... ]?
>
>
> On Thu, Jun 27, 2013 at 2:41 PM,  <commits at source.squeak.org> wrote:
>> Frank Shearar uploaded a new version of Files to project The Trunk:
>> http://source.squeak.org/trunk/Files-fbs.124.mcz
>>
>> ==================== Summary ====================
>>
>> Name: Files-fbs.124
>> Author: fbs
>> Time: 27 June 2013, 5:18:49.925 pm
>> UUID: db8086ca-e21b-9748-a401-0430a5641821
>> Ancestors: Files-tpr.123
>>
>> Remove the Cursor >> #showWhile because this method has no senders (it's an example of how to recursively enumerate a FileDirectory) and so needlessly introduces a dependency on Graphics.
>>
>> The diff is very noisy because we unindent the block.
>>
>> =============== Diff against Files-tpr.123 ===============
>>
>> Item was changed:
>>   ----- Method: FileDirectory>>statsForDirectoryTree: (in category 'enumeration') -----
>>   statsForDirectoryTree: rootedPathName
>>         "Return the size statistics for the entire directory tree starting at the given root. The result is a three element array of the form: (<number of folders><number of files><total bytes in all files>). This method also serves as an example of how recursively enumerate a directory tree."
>>         "FileDirectory default statsForDirectoryTree: '\smalltalk'"
>>
>> +       | dirs files bytes todo entries p |
>> +       dirs := files := bytes := 0.
>> +       todo := OrderedCollection with: rootedPathName.
>> +       [todo isEmpty] whileFalse: [
>> +               p := todo removeFirst.
>> +               entries := self directoryContentsFor: p.
>> +               entries do: [:entry |
>> +                       entry isDirectory
>> +                               ifTrue: [
>> +                                       todo addLast: p , self pathNameDelimiter asString , entry name.
>> +                                       dirs := dirs + 1]
>> +                               ifFalse: [
>> +                                       files := files + 1.
>> +                                       bytes := bytes + entry fileSize]]].
>> +       ^ Array with: dirs with: files with: bytes
>> -       ^Cursor wait showWhile: [
>> -               | dirs files bytes todo entries p |
>> -               dirs := files := bytes := 0.
>> -               todo := OrderedCollection with: rootedPathName.
>> -               [todo isEmpty] whileFalse: [
>> -                       p := todo removeFirst.
>> -                       entries := self directoryContentsFor: p.
>> -                       entries do: [:entry |
>> -                               entry isDirectory
>> -                                       ifTrue: [
>> -                                               todo addLast: p , self pathNameDelimiter asString , entry name.
>> -                                               dirs := dirs + 1]
>> -                                       ifFalse: [
>> -                                               files := files + 1.
>> -                                               bytes := bytes + entry fileSize]]].
>> -               Array with: dirs with: files with: bytes]
>>   !
>>
>>
>