[PATCH v2 2/5] shell32: Stub out FolderItems.

[Nikolay Sivov]

On 05.07.2016 8:47, Alex Henrie wrote:
> Cc: Christian Costa <titan.costa at gmail.com>
> Cc: Sebastian Lackner <sebastian at fds-team.de>
> 
> Wine Staging has included a similar patch since 1.7.51, however this
> patch is not based on theirs.
> 
> FolderItems2 worked in Windows 2000, but it was removed when
> FolderItems3 was introduced in Windows XP. However, it doesn't hurt us
> to provide this interface anyway for any old applications that might
> want it.
> 
> Signed-off-by: Alex Henrie <alexhenrie24 at gmail.com>
> ---
>  dlls/shell32/shell32_main.h  |   1 +
>  dlls/shell32/shelldispatch.c | 207 ++++++++++++++++++++++++++++++++++++++++++-
>  2 files changed, 206 insertions(+), 2 deletions(-)
> 
> diff --git a/dlls/shell32/shell32_main.h b/dlls/shell32/shell32_main.h
> index 492f79f..64a26bb 100644
> --- a/dlls/shell32/shell32_main.h
> +++ b/dlls/shell32/shell32_main.h
> @@ -234,6 +234,7 @@ enum tid_t {
>      IShellDispatch6_tid,
>      IShellFolderViewDual3_tid,
>      Folder3_tid,
> +    FolderItems3_tid,
>      FolderItem2_tid,
>      FolderItemVerb_tid,
>      FolderItemVerbs_tid,

That's not going to work, you have to update tid_ids[] too. Also please
keep it sorted.

> diff --git a/dlls/shell32/shelldispatch.c b/dlls/shell32/shelldispatch.c
> index 6dece6d..3661430 100644
> --- a/dlls/shell32/shelldispatch.c
> +++ b/dlls/shell32/shelldispatch.c
> @@ -65,6 +65,11 @@ typedef struct {
>  } FolderImpl;
>  
>  typedef struct {
> +    FolderItems3 FolderItems3_iface;
> +    LONG ref;
> +} FolderItemsImpl;
> +
> +typedef struct {
>      FolderItem2 FolderItem2_iface;
>      LONG ref;
>      VARIANT dir;
> @@ -97,6 +102,11 @@ static inline FolderImpl *impl_from_Folder(Folder3 *iface)
>      return CONTAINING_RECORD(iface, FolderImpl, Folder3_iface);
>  }
>  
> +static inline FolderItemsImpl *impl_from_FolderItems(FolderItems3 *iface)
> +{
> +    return CONTAINING_RECORD(iface, FolderItemsImpl, FolderItems3_iface);
> +}
> +
>  static inline FolderItemImpl *impl_from_FolderItem(FolderItem2 *iface)
>  {
>      return CONTAINING_RECORD(iface, FolderItemImpl, FolderItem2_iface);
> @@ -939,6 +949,200 @@ static HRESULT FolderItem_Constructor(VARIANT *dir, FolderItem **ppfi)
>      return ret;
>  }
>  
> +static HRESULT WINAPI FolderItemsImpl_QueryInterface(FolderItems3 *iface,
> +        REFIID riid, LPVOID *ppv)
> +{
> +    FolderItemsImpl *This = impl_from_FolderItems(iface);
> +
> +    TRACE("(%p,%p,%p)\n", iface, riid, ppv);

Usually we trace riid.

> +
> +    if (!ppv) return E_INVALIDARG;

This is unusual, do we have a test for that?