[Bug 120077] There are some memory leaks in function ScXMLFontAutoStylePool_Impl::ScXMLFontAutoStylePool_Impl

[bugzilla]

https://issues.apache.org/ooo/show_bug.cgi?id=120077

Ariel Constenla-Haile <arie...@apache.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
                 CC|                            |arie...@apache.org
         Resolution|FIXED                       |---

--- Comment #12 from Ariel Constenla-Haile <arie...@apache.org> ---
(In reply to comment #10)
> ALG: in principle, the whole SfxStyleSheetBasePool::CreateIterator is not
> needed; a SfxStyleSheetIterator can be created by everyone

This breaks the styles in Writer:

- Create a new Writer document
- Press F11
- There are no styles for any style family

----------------------------------------------------------------
The UNO layer is affected too.
Run the following macro:

REM  *****  BASIC  *****

Option Explicit

Sub Main
    Dim oDoc as Object
    oDoc = ThisComponent

    Dim sStyleFamilies$()
    Dim oStyleFamilies as Object
    oStyleFamilies = oDoc.getStyleFamilies()
    sStyleFamilies = oStyleFamilies.getElementNames()

    Dim sStyleFamily$
    Dim oFamily as Object
    For Each sStyleFamily in sStyleFamilies
        oFamily = oStyleFamilies.getByName(sStyleFamily)

        Dim sStyleNames$()
        Dim sStyle$, sStyleName$
        Dim oStyle as Object
        sStyleNames = oFamily.getElementNames()
        For Each sStyle In sStyleNames
            oStyle = oFamily.getByName(sStyle)
            sStyleName = oStyle.Name
        Next
    Next
End Sub

Style families are empty

----------------------------------------------------------------

You cannot simply replace SfxStyleSheetBasePool::CreateIterator with creating a
SfxStyleSheetIterator.
Writer sub-classes SfxStyleSheetBasePool in SwDocStyleSheetPool and overrides
this function to return an SwStyleSheetIterator, derived from
SfxStyleSheetIterator; and obviously SfxStyleSheetIterator and
SwStyleSheetIterator are not exchangeable (without breaking functionality, like
in this case).

This happens in SwXStyleFamily::getElementNames(), where the pBasePool is
likely (== I didn't debug this code) an SwDocStyleSheetPool and the iterator
should be a SwStyleSheetIterator, not a SfxStyleSheetIterator. This is why the
UNO layer is broken.

And it happens in the "Style and Formatting" window, in all the code in
sfx2/source/dialog/templdlg.cxx the SfxStyleSheetBasePool is really a
SwDocStyleSheetPool when we have a Writer document:

in void SfxCommonTemplateDialog_Impl::Update_Impl() 
- SfxObjectShell is really a SwDocShell
- pDocShell->GetStyleSheetPool() will be returning an SwDocStyleSheetPool
(SfxStyleSheetBasePool*    SwDocShell::GetStyleSheetPool())
- this means SfxStyleSheetBasePool::GetIterator_Impl cannot simply create a
SfxStyleSheetIterator, and CreateIterator was there with the idea to return a
SwDocStyleSheetPool in this case.

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