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/*
* CompositeMonikers implementation
*
* Copyright 1999 Noomen Hamza
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <assert.h>
#include <stdarg.h>
#include <string.h>
#define COBJMACROS
#include "windef.h"
#include "winbase.h"
#include "winuser.h"
#include "winerror.h"
#include "ole2.h"
#include "moniker.h"
#include "wine/debug.h"
#include "wine/heap.h"
WINE_DEFAULT_DEBUG_CHANNEL(ole);
typedef struct CompositeMonikerImpl
{
IMoniker IMoniker_iface;
IROTData IROTData_iface;
IMarshal IMarshal_iface;
LONG ref;
IMoniker *left;
IMoniker *right;
unsigned int comp_count;
} CompositeMonikerImpl;
static inline CompositeMonikerImpl *impl_from_IMoniker(IMoniker *iface)
{
return CONTAINING_RECORD(iface, CompositeMonikerImpl, IMoniker_iface);
}
static const IMonikerVtbl VT_CompositeMonikerImpl;
static CompositeMonikerImpl *unsafe_impl_from_IMoniker(IMoniker *iface)
{
if (iface->lpVtbl != &VT_CompositeMonikerImpl)
return NULL;
return CONTAINING_RECORD(iface, CompositeMonikerImpl, IMoniker_iface);
}
static inline CompositeMonikerImpl *impl_from_IROTData(IROTData *iface)
{
return CONTAINING_RECORD(iface, CompositeMonikerImpl, IROTData_iface);
}
static inline CompositeMonikerImpl *impl_from_IMarshal(IMarshal *iface)
{
return CONTAINING_RECORD(iface, CompositeMonikerImpl, IMarshal_iface);
}
typedef struct EnumMonikerImpl
{
IEnumMoniker IEnumMoniker_iface;
LONG ref;
IMoniker **monikers;
unsigned int count;
unsigned int pos;
} EnumMonikerImpl;
static inline EnumMonikerImpl *impl_from_IEnumMoniker(IEnumMoniker *iface)
{
return CONTAINING_RECORD(iface, EnumMonikerImpl, IEnumMoniker_iface);
}
static HRESULT create_enumerator(IMoniker **components, unsigned int count, BOOL forward, IEnumMoniker **ret);
static HRESULT composite_get_rightmost(CompositeMonikerImpl *composite, IMoniker **left, IMoniker **rightmost);
static HRESULT composite_get_leftmost(CompositeMonikerImpl *composite, IMoniker **leftmost);
/*******************************************************************************
* CompositeMoniker_QueryInterface
*******************************************************************************/
static HRESULT WINAPI
CompositeMonikerImpl_QueryInterface(IMoniker* iface,REFIID riid,void** ppvObject)
{
CompositeMonikerImpl *This = impl_from_IMoniker(iface);
TRACE("(%p,%s,%p)\n",This,debugstr_guid(riid),ppvObject);
/* Perform a sanity check on the parameters.*/
if ( ppvObject==0 )
return E_INVALIDARG;
/* Initialize the return parameter */
*ppvObject = 0;
/* Compare the riid with the interface IDs implemented by this object.*/
if (IsEqualIID(&IID_IUnknown, riid) ||
IsEqualIID(&IID_IPersist, riid) ||
IsEqualIID(&IID_IPersistStream, riid) ||
IsEqualIID(&IID_IMoniker, riid)
)
*ppvObject = iface;
else if (IsEqualIID(&IID_IROTData, riid))
*ppvObject = &This->IROTData_iface;
else if (IsEqualIID(&IID_IMarshal, riid))
*ppvObject = &This->IMarshal_iface;
/* Check that we obtained an interface.*/
if ((*ppvObject)==0)
return E_NOINTERFACE;
/* Query Interface always increases the reference count by one when it is successful */
IMoniker_AddRef(iface);
return S_OK;
}
/******************************************************************************
* CompositeMoniker_AddRef
******************************************************************************/
static ULONG WINAPI
CompositeMonikerImpl_AddRef(IMoniker* iface)
{
CompositeMonikerImpl *This = impl_from_IMoniker(iface);
TRACE("(%p)\n",This);
return InterlockedIncrement(&This->ref);
}
static ULONG WINAPI CompositeMonikerImpl_Release(IMoniker* iface)
{
CompositeMonikerImpl *moniker = impl_from_IMoniker(iface);
ULONG refcount = InterlockedDecrement(&moniker->ref);
TRACE("%p, refcount %lu\n", iface, refcount);
if (!refcount)
{
if (moniker->left) IMoniker_Release(moniker->left);
if (moniker->right) IMoniker_Release(moniker->right);
heap_free(moniker);
}
return refcount;
}
/******************************************************************************
* CompositeMoniker_GetClassID
******************************************************************************/
static HRESULT WINAPI
CompositeMonikerImpl_GetClassID(IMoniker* iface,CLSID *pClassID)
{
TRACE("(%p,%p)\n",iface,pClassID);
if (pClassID==NULL)
return E_POINTER;
*pClassID = CLSID_CompositeMoniker;
return S_OK;
}
/******************************************************************************
* CompositeMoniker_IsDirty
******************************************************************************/
static HRESULT WINAPI
CompositeMonikerImpl_IsDirty(IMoniker* iface)
{
/* Note that the OLE-provided implementations of the IPersistStream::IsDirty
method in the OLE-provided moniker interfaces always return S_FALSE because
their internal state never changes. */
TRACE("(%p)\n",iface);
return S_FALSE;
}
static HRESULT WINAPI CompositeMonikerImpl_Load(IMoniker *iface, IStream *stream)
{
CompositeMonikerImpl *moniker = impl_from_IMoniker(iface);
IMoniker *last, *m, *c;
DWORD i, count;
HRESULT hr;
TRACE("%p, %p\n", iface, stream);
if (moniker->comp_count)
return E_UNEXPECTED;
hr = IStream_Read(stream, &count, sizeof(DWORD), NULL);
if (hr != S_OK)
{
WARN("Failed to read component count, hr %#lx.\n", hr);
return hr;
}
if (count < 2)
{
WARN("Unexpected component count %lu.\n", count);
return E_UNEXPECTED;
}
if (FAILED(hr = OleLoadFromStream(stream, &IID_IMoniker, (void **)&last)))
return hr;
for (i = 1; i < count - 1; ++i)
{
if (FAILED(hr = OleLoadFromStream(stream, &IID_IMoniker, (void **)&m)))
{
WARN("Failed to initialize component %lu, hr %#lx.\n", i, hr);
IMoniker_Release(last);
return hr;
}
hr = CreateGenericComposite(last, m, &c);
IMoniker_Release(last);
IMoniker_Release(m);
if (FAILED(hr)) return hr;
last = c;
}
if (FAILED(hr = OleLoadFromStream(stream, &IID_IMoniker, (void **)&m)))
{
IMoniker_Release(last);
return hr;
}
moniker->left = last;
moniker->right = m;
moniker->comp_count = count;
return hr;
}
static HRESULT composite_save_components(IMoniker *moniker, IStream *stream)
{
CompositeMonikerImpl *comp_moniker;
HRESULT hr;
if ((comp_moniker = unsafe_impl_from_IMoniker(moniker)))
{
if (SUCCEEDED(hr = composite_save_components(comp_moniker->left, stream)))
hr = composite_save_components(comp_moniker->right, stream);
}
else
hr = OleSaveToStream((IPersistStream *)moniker, stream);
return hr;
}
static HRESULT WINAPI CompositeMonikerImpl_Save(IMoniker *iface, IStream *stream, BOOL clear_dirty)
{
CompositeMonikerImpl *moniker = impl_from_IMoniker(iface);
HRESULT hr;
TRACE("%p, %p, %d\n", iface, stream, clear_dirty);
if (!moniker->comp_count)
return E_UNEXPECTED;
hr = IStream_Write(stream, &moniker->comp_count, sizeof(moniker->comp_count), NULL);
if (FAILED(hr)) return hr;
return composite_save_components(iface, stream);
}
/******************************************************************************
* CompositeMoniker_GetSizeMax
******************************************************************************/
static HRESULT WINAPI
CompositeMonikerImpl_GetSizeMax(IMoniker* iface,ULARGE_INTEGER* pcbSize)
{
IEnumMoniker *enumMk;
IMoniker *pmk;
ULARGE_INTEGER ptmpSize;
/* The sizeMax of this object is calculated by calling GetSizeMax on
* each moniker within this object then summing all returned values
*/
TRACE("(%p,%p)\n",iface,pcbSize);
if (!pcbSize)
return E_POINTER;
pcbSize->QuadPart = sizeof(DWORD);
IMoniker_Enum(iface,TRUE,&enumMk);
while(IEnumMoniker_Next(enumMk,1,&pmk,NULL)==S_OK){
IMoniker_GetSizeMax(pmk,&ptmpSize);
IMoniker_Release(pmk);
pcbSize->QuadPart += ptmpSize.QuadPart + sizeof(CLSID);
}
IEnumMoniker_Release(enumMk);
return S_OK;
}
static HRESULT compose_with(IMoniker *left, IMoniker *right, IMoniker **c)
{
HRESULT hr = IMoniker_ComposeWith(left, right, TRUE, c);
if (FAILED(hr) && hr != MK_E_NEEDGENERIC) return hr;
return CreateGenericComposite(left, right, c);
}
static HRESULT WINAPI CompositeMonikerImpl_BindToObject(IMoniker *iface, IBindCtx *pbc,
IMoniker *toleft, REFIID riid, void **result)
{
CompositeMonikerImpl *moniker = impl_from_IMoniker(iface);
IMoniker *left, *rightmost, *c;
IRunningObjectTable *rot;
IUnknown *object;
HRESULT hr;
TRACE("%p, %p, %p, %s, %p.\n", iface, pbc, toleft, debugstr_guid(riid), result);
if (!result)
return E_POINTER;
*result = NULL;
if (!toleft)
{
hr = IBindCtx_GetRunningObjectTable(pbc, &rot);
if (SUCCEEDED(hr))
{
hr = IRunningObjectTable_GetObject(rot, iface, &object);
IRunningObjectTable_Release(rot);
if (FAILED(hr)) return E_INVALIDARG;
hr = IUnknown_QueryInterface(object, riid, result);
IUnknown_Release(object);
}
return hr;
}
/* Try to bind rightmost component with (toleft, composite->left) composite at its left side */
if (FAILED(hr = composite_get_rightmost(moniker, &left, &rightmost)))
return hr;
hr = compose_with(toleft, left, &c);
IMoniker_Release(left);
if (SUCCEEDED(hr))
{
hr = IMoniker_BindToObject(rightmost, pbc, c, riid, result);
IMoniker_Release(c);
}
IMoniker_Release(rightmost);
return hr;
}
static HRESULT WINAPI CompositeMonikerImpl_BindToStorage(IMoniker *iface, IBindCtx *pbc,
IMoniker *toleft, REFIID riid, void **result)
{
CompositeMonikerImpl *moniker = impl_from_IMoniker(iface);
IMoniker *left, *rightmost, *composed_left;
HRESULT hr;
TRACE("%p, %p, %p, %s, %p.\n", iface, pbc, toleft, debugstr_guid(riid), result);
*result = NULL;
if (FAILED(hr = composite_get_rightmost(moniker, &left, &rightmost)))
return hr;
if (toleft)
{
hr = compose_with(toleft, left, &composed_left);
}
else
{
composed_left = left;
IMoniker_AddRef(composed_left);
}
if (SUCCEEDED(hr))
{
hr = IMoniker_BindToStorage(rightmost, pbc, composed_left, riid, result);
IMoniker_Release(composed_left);
}
IMoniker_Release(rightmost);
IMoniker_Release(left);
return hr;
}
static HRESULT WINAPI CompositeMonikerImpl_Reduce(IMoniker *iface, IBindCtx *pbc, DWORD howfar,
IMoniker **toleft, IMoniker **reduced)
{
CompositeMonikerImpl *moniker = impl_from_IMoniker(iface);
IMoniker *m, *reduced_left, *reduced_right;
BOOL was_reduced;
HRESULT hr;
TRACE("%p, %p, %ld, %p, %p.\n", iface, pbc, howfar, toleft, reduced);
if (!pbc || !reduced)
return E_INVALIDARG;
if (FAILED(hr = IMoniker_Reduce(moniker->left, pbc, howfar, NULL, &reduced_left)))
return hr;
m = moniker->left;
if (FAILED(hr = IMoniker_Reduce(moniker->right, pbc, howfar, &m, &reduced_right)))
{
IMoniker_Release(reduced_left);
return hr;
}
if ((was_reduced = (reduced_left != moniker->left || reduced_right != moniker->right)))
{
hr = CreateGenericComposite(reduced_left, reduced_right, reduced);
}
else
{
*reduced = iface;
IMoniker_AddRef(*reduced);
}
IMoniker_Release(reduced_left);
IMoniker_Release(reduced_right);
return was_reduced ? hr : MK_S_REDUCED_TO_SELF;
}
static HRESULT WINAPI CompositeMonikerImpl_ComposeWith(IMoniker *iface, IMoniker *right,
BOOL only_if_not_generic, IMoniker **composite)
{
TRACE("%p, %p, %d, %p.\n", iface, right, only_if_not_generic, composite);
*composite = NULL;
return only_if_not_generic ? MK_E_NEEDGENERIC : CreateGenericComposite(iface, right, composite);
}
static void composite_get_components(IMoniker *moniker, IMoniker **components, unsigned int *index)
{
CompositeMonikerImpl *comp_moniker;
if ((comp_moniker = unsafe_impl_from_IMoniker(moniker)))
{
composite_get_components(comp_moniker->left, components, index);
composite_get_components(comp_moniker->right, components, index);
}
else
{
components[*index] = moniker;
(*index)++;
}
}
static HRESULT composite_get_components_alloc(IMoniker *iface, unsigned int *count, IMoniker ***components)
{
CompositeMonikerImpl *moniker;
unsigned int index;
if ((moniker = unsafe_impl_from_IMoniker(iface)))
*count = moniker->comp_count;
else
*count = 1;
if (!(*components = heap_alloc(*count * sizeof(**components))))
return E_OUTOFMEMORY;
index = 0;
composite_get_components(iface, *components, &index);
return S_OK;
}
static HRESULT WINAPI CompositeMonikerImpl_Enum(IMoniker *iface, BOOL forward, IEnumMoniker **ret_enum)
{
IMoniker **monikers;
unsigned int count;
HRESULT hr;
TRACE("%p, %d, %p\n", iface, forward, ret_enum);
if (!ret_enum)
return E_INVALIDARG;
if (FAILED(hr = composite_get_components_alloc(iface, &count, &monikers)))
return hr;
hr = create_enumerator(monikers, count, forward, ret_enum);
heap_free(monikers);
return hr;
}
static HRESULT WINAPI CompositeMonikerImpl_IsEqual(IMoniker *iface, IMoniker *other)
{
CompositeMonikerImpl *moniker = impl_from_IMoniker(iface), *other_moniker;
IMoniker **components, **other_components;
unsigned int i, count;
HRESULT hr;
TRACE("%p, %p.\n", iface, other);
if (!other)
return E_INVALIDARG;
if (!(other_moniker = unsafe_impl_from_IMoniker(other)))
return S_FALSE;
if (moniker->comp_count != other_moniker->comp_count)
return S_FALSE;
if (FAILED(hr = composite_get_components_alloc(iface, &count, &components))) return hr;
if (FAILED(hr = composite_get_components_alloc(other, &count, &other_components)))
{
heap_free(components);
return hr;
}
for (i = 0; i < moniker->comp_count; ++i)
{
if ((hr = IMoniker_IsEqual(components[i], other_components[i]) != S_OK))
break;
}
heap_free(other_components);
heap_free(components);
return hr;
}
static HRESULT WINAPI CompositeMonikerImpl_Hash(IMoniker *iface, DWORD *hash)
{
CompositeMonikerImpl *moniker = impl_from_IMoniker(iface);
DWORD left_hash, right_hash;
HRESULT hr;
TRACE("%p, %p\n", iface, hash);
if (!hash)
return E_POINTER;
if (!moniker->comp_count)
return E_UNEXPECTED;
*hash = 0;
if (FAILED(hr = IMoniker_Hash(moniker->left, &left_hash))) return hr;
if (FAILED(hr = IMoniker_Hash(moniker->right, &right_hash))) return hr;
*hash = left_hash ^ right_hash;
return hr;
}
static HRESULT WINAPI CompositeMonikerImpl_IsRunning(IMoniker *iface, IBindCtx *pbc,
IMoniker *toleft, IMoniker *newly_running)
{
CompositeMonikerImpl *moniker = impl_from_IMoniker(iface);
IMoniker *c, *left, *rightmost;
IRunningObjectTable *rot;
HRESULT hr;
TRACE("%p, %p, %p, %p.\n", iface, pbc, toleft, newly_running);
if (!pbc)
return E_INVALIDARG;
if (toleft)
{
if (SUCCEEDED(hr = CreateGenericComposite(toleft, iface, &c)))
{
hr = IMoniker_IsRunning(c, pbc, NULL, newly_running);
IMoniker_Release(c);
}
return hr;
}
if (newly_running)
return IMoniker_IsEqual(iface, newly_running);
if (FAILED(hr = IBindCtx_GetRunningObjectTable(pbc, &rot)))
return hr;
hr = IRunningObjectTable_IsRunning(rot, iface);
IRunningObjectTable_Release(rot);
if (hr == S_OK) return S_OK;
if (FAILED(hr = composite_get_rightmost(moniker, &left, &rightmost)))
return hr;
hr = IMoniker_IsRunning(rightmost, pbc, left, NULL);
IMoniker_Release(left);
IMoniker_Release(rightmost);
return hr;
}
static HRESULT WINAPI CompositeMonikerImpl_GetTimeOfLastChange(IMoniker *iface, IBindCtx *pbc,
IMoniker *toleft, FILETIME *changetime)
{
CompositeMonikerImpl *moniker = impl_from_IMoniker(iface);
IMoniker *left, *rightmost, *composed_left = NULL, *running = NULL;
IRunningObjectTable *rot;
HRESULT hr;
TRACE("%p, %p, %p, %p.\n", iface, pbc, toleft, changetime);
if (!changetime || !pbc)
return E_INVALIDARG;
if (FAILED(hr = composite_get_rightmost(moniker, &left, &rightmost)))
return hr;
if (toleft)
{
/* Compose (toleft, left) and check that against rightmost */
if (SUCCEEDED(hr = compose_with(toleft, left, &composed_left)) && composed_left)
hr = compose_with(composed_left, rightmost, &running);
}
else
{
composed_left = left;
IMoniker_AddRef(composed_left);
running = iface;
IMoniker_AddRef(running);
}
if (SUCCEEDED(hr))
{
if (SUCCEEDED(hr = IBindCtx_GetRunningObjectTable(pbc, &rot)))
{
if (IRunningObjectTable_GetTimeOfLastChange(rot, running, changetime) != S_OK)
hr = IMoniker_GetTimeOfLastChange(rightmost, pbc, composed_left, changetime);
IRunningObjectTable_Release(rot);
}
}
if (composed_left)
IMoniker_Release(composed_left);
if (running)
IMoniker_Release(running);
IMoniker_Release(rightmost);
IMoniker_Release(left);
return hr;
}
static HRESULT WINAPI CompositeMonikerImpl_Inverse(IMoniker *iface, IMoniker **inverse)
{
CompositeMonikerImpl *moniker = impl_from_IMoniker(iface);
IMoniker *right_inverted, *left_inverted;
HRESULT hr;
TRACE("%p, %p.\n", iface, inverse);
if (!inverse)
return E_INVALIDARG;
*inverse = NULL;
if (FAILED(hr = IMoniker_Inverse(moniker->right, &right_inverted))) return hr;
if (FAILED(hr = IMoniker_Inverse(moniker->left, &left_inverted)))
{
IMoniker_Release(right_inverted);
return hr;
}
hr = CreateGenericComposite(right_inverted, left_inverted, inverse);
IMoniker_Release(left_inverted);
IMoniker_Release(right_inverted);
return hr;
}
static HRESULT WINAPI CompositeMonikerImpl_CommonPrefixWith(IMoniker *iface, IMoniker *other,
IMoniker **prefix)
{
CompositeMonikerImpl *moniker = impl_from_IMoniker(iface), *other_moniker;
unsigned int i, count, prefix_len = 0;
IMoniker *leftmost;
HRESULT hr;
TRACE("%p, %p, %p.\n", iface, other, prefix);
/* If the other moniker is a composite, this method compares the components of each composite from left */
/* to right. The returned common prefix moniker might also be a composite moniker, depending on how many */
/* of the leftmost components were common to both monikers. */
if (prefix)
*prefix = NULL;
if (!other || !prefix)
return E_INVALIDARG;
if ((other_moniker = unsafe_impl_from_IMoniker(other)))
{
IMoniker **components, **other_components, **prefix_components;
IMoniker *last, *c;
if (FAILED(hr = composite_get_components_alloc(iface, &count, &components))) return hr;
if (FAILED(hr = composite_get_components_alloc(other, &count, &other_components)))
{
heap_free(components);
return hr;
}
count = min(moniker->comp_count, other_moniker->comp_count);
if (!(prefix_components = heap_calloc(count, sizeof(*prefix_components))))
{
heap_free(components);
heap_free(other_components);
return E_OUTOFMEMORY;
}
/* Collect prefix components */
for (i = 0; i < count; ++i)
{
IMoniker *p;
if (FAILED(hr = IMoniker_CommonPrefixWith(components[i], other_components[i], &p)))
break;
prefix_components[prefix_len++] = p;
/* S_OK means that prefix was found and is neither of tested monikers */
if (hr == S_OK) break;
}
heap_free(components);
heap_free(other_components);
if (!prefix_len) return MK_E_NOPREFIX;
last = prefix_components[0];
for (i = 1; i < prefix_len; ++i)
{
hr = CreateGenericComposite(last, prefix_components[i], &c);
IMoniker_Release(last);
IMoniker_Release(prefix_components[i]);
if (FAILED(hr)) break;
last = c;
}
heap_free(prefix_components);
if (SUCCEEDED(hr))
{
*prefix = last;
if (IMoniker_IsEqual(iface, *prefix) == S_OK)
hr = MK_S_US;
else if (prefix_len < count)
hr = S_OK;
else
hr = prefix_len == moniker->comp_count ? MK_S_ME : MK_S_HIM;
}
return hr;
}
/* For non-composite, compare to leftmost component */
if (SUCCEEDED(hr = composite_get_leftmost(moniker, &leftmost)))
{
if ((hr = IMoniker_IsEqual(leftmost, other)) == S_OK)
{
*prefix = leftmost;
IMoniker_AddRef(*prefix);
}
hr = hr == S_OK ? MK_S_HIM : MK_E_NOPREFIX;
IMoniker_Release(leftmost);
}
return hr;
}
static HRESULT composite_compose_components(IMoniker **comp, unsigned int count, IMoniker **ret)
{
IMoniker *last, *c;
HRESULT hr = S_OK;
unsigned int i;
last = comp[0];
IMoniker_AddRef(last);
for (i = 1; i < count; ++i)
{
hr = CreateGenericComposite(last, comp[i], &c);
IMoniker_Release(last);
if (FAILED(hr)) break;
last = c;
}
*ret = SUCCEEDED(hr) ? last : NULL;
return hr;
}
static HRESULT WINAPI CompositeMonikerImpl_RelativePathTo(IMoniker *iface, IMoniker *other,
IMoniker **relpath)
{
unsigned int count, this_count, other_count, prefix_len = 0;
IMoniker *inv, *tail = NULL, *other_tail = NULL, *rel = NULL;
IMoniker **components, **other_components;
unsigned int start = 0, other_start = 0;
HRESULT hr;
TRACE("%p, %p, %p.\n", iface, other, relpath);
if (!relpath)
return E_INVALIDARG;
*relpath = NULL;
if (FAILED(hr = composite_get_components_alloc(iface, &this_count, &components))) return hr;
if (FAILED(hr = composite_get_components_alloc(other, &other_count, &other_components)))
{
heap_free(components);
return hr;
}
/* Skip common prefix of equal components */
count = min(other_count, this_count);
while (IMoniker_IsEqual(components[prefix_len], other_components[prefix_len]) == S_OK)
{
if (++prefix_len == count) break;
}
if (prefix_len)
{
this_count -= prefix_len;
other_count -= prefix_len;
other_start += prefix_len;
start += prefix_len;
}
else
{
/* Replace first component of the other tail with relative path */
if (SUCCEEDED(hr = IMoniker_RelativePathTo(*components, *other_components, &rel)))
*other_components = rel;
this_count--;
start++;
}
/* Invert left side tail */
if (this_count && SUCCEEDED(hr))
{
if (SUCCEEDED(hr = composite_compose_components(&components[start], this_count, &tail)))
{
hr = IMoniker_Inverse(tail, &inv);
IMoniker_Release(tail);
tail = inv;
}
}
if (other_count && SUCCEEDED(hr))
hr = composite_compose_components(&other_components[other_start], other_count, &other_tail);
if (tail || other_tail)
hr = CreateGenericComposite(tail, other_tail, relpath);
else if (SUCCEEDED(hr))
{
*relpath = other;
IMoniker_AddRef(*relpath);
hr = MK_S_HIM;
}
if (rel)
IMoniker_Release(rel);
if (tail)
IMoniker_Release(tail);
if (other_tail)
IMoniker_Release(other_tail);
heap_free(other_components);
heap_free(components);
return hr;
}
static HRESULT WINAPI CompositeMonikerImpl_GetDisplayName(IMoniker *iface, IBindCtx *pbc,
IMoniker *pmkToLeft, LPOLESTR *displayname)
{
CompositeMonikerImpl *moniker = impl_from_IMoniker(iface);
WCHAR *left_name = NULL, *right_name = NULL;
HRESULT hr;
TRACE("%p, %p, %p, %p\n", iface, pbc, pmkToLeft, displayname);
if (!pbc || !displayname || !moniker->comp_count)
return E_INVALIDARG;
if (FAILED(hr = IMoniker_GetDisplayName(moniker->left, pbc, NULL, &left_name))) return hr;
if (FAILED(hr = IMoniker_GetDisplayName(moniker->right, pbc, NULL, &right_name)))
{
CoTaskMemFree(left_name);
return hr;
}
if (!(*displayname = CoTaskMemAlloc((lstrlenW(left_name) + lstrlenW(right_name) + 1) * sizeof(WCHAR))))
{
CoTaskMemFree(left_name);
CoTaskMemFree(right_name);
return E_OUTOFMEMORY;
}
lstrcpyW(*displayname, left_name);
lstrcatW(*displayname, right_name);
CoTaskMemFree(left_name);
CoTaskMemFree(right_name);
return S_OK;
}
static HRESULT WINAPI CompositeMonikerImpl_ParseDisplayName(IMoniker *iface, IBindCtx *pbc,
IMoniker *pmkToLeft, LPOLESTR name, ULONG *eaten, IMoniker **result)
{
CompositeMonikerImpl *moniker = impl_from_IMoniker(iface);
IMoniker *left, *rightmost;
HRESULT hr;
TRACE("%p, %p, %p, %s, %p, %p.\n", iface, pbc, pmkToLeft, debugstr_w(name), eaten, result);
if (!pbc)
return E_INVALIDARG;
if (FAILED(hr = composite_get_rightmost(moniker, &left, &rightmost)))
return hr;
/* Let rightmost component parse the name, using what's left of the composite as a left side. */
hr = IMoniker_ParseDisplayName(rightmost, pbc, left, name, eaten, result);
IMoniker_Release(left);
IMoniker_Release(rightmost);
return hr;
}
/******************************************************************************
* CompositeMoniker_IsSystemMoniker
******************************************************************************/
static HRESULT WINAPI
CompositeMonikerImpl_IsSystemMoniker(IMoniker* iface,DWORD* pwdMksys)
{
TRACE("(%p,%p)\n",iface,pwdMksys);
if (!pwdMksys)
return E_POINTER;
(*pwdMksys)=MKSYS_GENERICCOMPOSITE;
return S_OK;
}
/*******************************************************************************
* CompositeMonikerIROTData_QueryInterface
*******************************************************************************/
static HRESULT WINAPI
CompositeMonikerROTDataImpl_QueryInterface(IROTData *iface,REFIID riid,
VOID** ppvObject)
{
CompositeMonikerImpl *This = impl_from_IROTData(iface);
TRACE("(%p,%s,%p)\n",iface,debugstr_guid(riid),ppvObject);
return CompositeMonikerImpl_QueryInterface(&This->IMoniker_iface, riid, ppvObject);
}
/***********************************************************************
* CompositeMonikerIROTData_AddRef
*/
static ULONG WINAPI
CompositeMonikerROTDataImpl_AddRef(IROTData *iface)
{
CompositeMonikerImpl *This = impl_from_IROTData(iface);
TRACE("(%p)\n",iface);
return IMoniker_AddRef(&This->IMoniker_iface);
}
/***********************************************************************
* CompositeMonikerIROTData_Release
*/
static ULONG WINAPI CompositeMonikerROTDataImpl_Release(IROTData* iface)
{
CompositeMonikerImpl *This = impl_from_IROTData(iface);
TRACE("(%p)\n",iface);
return IMoniker_Release(&This->IMoniker_iface);
}
static HRESULT composite_get_moniker_comparison_data(IMoniker *moniker,
BYTE *data, ULONG max_len, ULONG *ret_len)
{
IROTData *rot_data;
HRESULT hr;
if (FAILED(hr = IMoniker_QueryInterface(moniker, &IID_IROTData, (void **)&rot_data)))
{
WARN("Failed to get IROTData for component moniker, hr %#lx.\n", hr);
return hr;
}
hr = IROTData_GetComparisonData(rot_data, data, max_len, ret_len);
IROTData_Release(rot_data);
return hr;
}
static HRESULT WINAPI CompositeMonikerROTDataImpl_GetComparisonData(IROTData *iface,
BYTE *data, ULONG max_len, ULONG *ret_len)
{
CompositeMonikerImpl *moniker = impl_from_IROTData(iface);
HRESULT hr;
ULONG len;
TRACE("%p, %p, %lu, %p\n", iface, data, max_len, ret_len);
if (!moniker->comp_count)
return E_UNEXPECTED;
/* Get required size first */
*ret_len = sizeof(CLSID);
len = 0;
hr = composite_get_moniker_comparison_data(moniker->left, NULL, 0, &len);
if (SUCCEEDED(hr) || hr == E_OUTOFMEMORY)
*ret_len += len;
else
{
WARN("Failed to get comparison data length for left component, hr %#lx.\n", hr);
return hr;
}
len = 0;
hr = composite_get_moniker_comparison_data(moniker->right, NULL, 0, &len);
if (SUCCEEDED(hr) || hr == E_OUTOFMEMORY)
*ret_len += len;
else
{
WARN("Failed to get comparison data length for right component, hr %#lx.\n", hr);
return hr;
}
if (max_len < *ret_len)
return E_OUTOFMEMORY;
memcpy(data, &CLSID_CompositeMoniker, sizeof(CLSID));
data += sizeof(CLSID);
max_len -= sizeof(CLSID);
if (FAILED(hr = composite_get_moniker_comparison_data(moniker->left, data, max_len, &len)))
{
WARN("Failed to get comparison data for left component, hr %#lx.\n", hr);
return hr;
}
data += len;
max_len -= len;
if (FAILED(hr = composite_get_moniker_comparison_data(moniker->right, data, max_len, &len)))
{
WARN("Failed to get comparison data for right component, hr %#lx.\n", hr);
return hr;
}
return S_OK;
}
static HRESULT WINAPI CompositeMonikerMarshalImpl_QueryInterface(IMarshal *iface, REFIID riid, LPVOID *ppv)
{
CompositeMonikerImpl *This = impl_from_IMarshal(iface);
TRACE("(%p,%s,%p)\n",iface,debugstr_guid(riid),ppv);
return CompositeMonikerImpl_QueryInterface(&This->IMoniker_iface, riid, ppv);
}
static ULONG WINAPI CompositeMonikerMarshalImpl_AddRef(IMarshal *iface)
{
CompositeMonikerImpl *This = impl_from_IMarshal(iface);
TRACE("(%p)\n",iface);
return CompositeMonikerImpl_AddRef(&This->IMoniker_iface);
}
static ULONG WINAPI CompositeMonikerMarshalImpl_Release(IMarshal *iface)
{
CompositeMonikerImpl *This = impl_from_IMarshal(iface);
TRACE("(%p)\n",iface);
return CompositeMonikerImpl_Release(&This->IMoniker_iface);
}
static HRESULT WINAPI CompositeMonikerMarshalImpl_GetUnmarshalClass(
IMarshal *iface, REFIID riid, void *pv, DWORD dwDestContext,
void* pvDestContext, DWORD mshlflags, CLSID* pCid)
{
CompositeMonikerImpl *This = impl_from_IMarshal(iface);
TRACE("%s, %p, %lx, %p, %lx, %p.\n", debugstr_guid(riid), pv,
dwDestContext, pvDestContext, mshlflags, pCid);
return IMoniker_GetClassID(&This->IMoniker_iface, pCid);
}
static HRESULT WINAPI CompositeMonikerMarshalImpl_GetMarshalSizeMax(
IMarshal *iface, REFIID riid, void *pv, DWORD dwDestContext,
void* pvDestContext, DWORD mshlflags, DWORD* pSize)
{
CompositeMonikerImpl *moniker = impl_from_IMarshal(iface);
HRESULT hr;
ULONG size;
TRACE("%s, %p, %lx, %p, %lx, %p.\n", debugstr_guid(riid), pv,
dwDestContext, pvDestContext, mshlflags, pSize);
if (!moniker->comp_count)
return E_UNEXPECTED;
*pSize = 0x10; /* to match native */
if (FAILED(hr = CoGetMarshalSizeMax(&size, &IID_IMoniker, (IUnknown *)moniker->left, dwDestContext,
pvDestContext, mshlflags)))
{
return hr;
}
*pSize += size;
if (FAILED(hr = CoGetMarshalSizeMax(&size, &IID_IMoniker, (IUnknown *)moniker->right, dwDestContext,
pvDestContext, mshlflags)))
{
return hr;
}
*pSize += size;
return hr;
}
static HRESULT WINAPI CompositeMonikerMarshalImpl_MarshalInterface(IMarshal *iface, IStream *stream,
REFIID riid, void *pv, DWORD dwDestContext, void *pvDestContext, DWORD flags)
{
CompositeMonikerImpl *moniker = impl_from_IMarshal(iface);
HRESULT hr;
TRACE("%p, %p, %s, %p, %lx, %p, %#lx\n", iface, stream, debugstr_guid(riid), pv, dwDestContext, pvDestContext, flags);
if (!moniker->comp_count)
return E_UNEXPECTED;
if (FAILED(hr = CoMarshalInterface(stream, &IID_IMoniker, (IUnknown *)moniker->left, dwDestContext, pvDestContext, flags)))
{
WARN("Failed to marshal left component, hr %#lx.\n", hr);
return hr;
}
if (FAILED(hr = CoMarshalInterface(stream, &IID_IMoniker, (IUnknown *)moniker->right, dwDestContext, pvDestContext, flags)))
WARN("Failed to marshal right component, hr %#lx.\n", hr);
return hr;
}
static HRESULT WINAPI CompositeMonikerMarshalImpl_UnmarshalInterface(IMarshal *iface, IStream *stream,
REFIID riid, void **ppv)
{
CompositeMonikerImpl *moniker = impl_from_IMarshal(iface);
HRESULT hr;
TRACE("%p, %p, %s, %p\n", iface, stream, debugstr_guid(riid), ppv);
if (moniker->left)
{
IMoniker_Release(moniker->left);
moniker->left = NULL;
}
if (moniker->right)
{
IMoniker_Release(moniker->right);
moniker->right = NULL;
}
if (FAILED(hr = CoUnmarshalInterface(stream, &IID_IMoniker, (void **)&moniker->left)))
{
WARN("Failed to unmarshal left moniker, hr %#lx.\n", hr);
return hr;
}
if (FAILED(hr = CoUnmarshalInterface(stream, &IID_IMoniker, (void **)&moniker->right)))
{
WARN("Failed to unmarshal right moniker, hr %#lx.\n", hr);
return hr;
}
return IMoniker_QueryInterface(&moniker->IMoniker_iface, riid, ppv);
}
static HRESULT WINAPI CompositeMonikerMarshalImpl_ReleaseMarshalData(IMarshal *iface, IStream *pStm)
{
TRACE("(%p)\n", pStm);
/* can't release a state-based marshal as nothing on server side to
* release */
return S_OK;
}
static HRESULT WINAPI CompositeMonikerMarshalImpl_DisconnectObject(IMarshal *iface,
DWORD dwReserved)
{
TRACE("%#lx\n", dwReserved);
/* can't disconnect a state-based marshal as nothing on server side to
* disconnect from */
return S_OK;
}
/******************************************************************************
* EnumMonikerImpl_QueryInterface
******************************************************************************/
static HRESULT WINAPI
EnumMonikerImpl_QueryInterface(IEnumMoniker* iface,REFIID riid,void** ppvObject)
{
EnumMonikerImpl *This = impl_from_IEnumMoniker(iface);
TRACE("(%p,%s,%p)\n",This,debugstr_guid(riid),ppvObject);
/* Perform a sanity check on the parameters.*/
if ( ppvObject==0 )
return E_INVALIDARG;
/* Initialize the return parameter */
*ppvObject = 0;
/* Compare the riid with the interface IDs implemented by this object.*/
if (IsEqualIID(&IID_IUnknown, riid) || IsEqualIID(&IID_IEnumMoniker, riid))
*ppvObject = iface;
/* Check that we obtained an interface.*/
if ((*ppvObject)==0)
return E_NOINTERFACE;
/* Query Interface always increases the reference count by one when it is successful */
IEnumMoniker_AddRef(iface);
return S_OK;
}
/******************************************************************************
* EnumMonikerImpl_AddRef
******************************************************************************/
static ULONG WINAPI
EnumMonikerImpl_AddRef(IEnumMoniker* iface)
{
EnumMonikerImpl *This = impl_from_IEnumMoniker(iface);
TRACE("(%p)\n",This);
return InterlockedIncrement(&This->ref);
}
static ULONG WINAPI EnumMonikerImpl_Release(IEnumMoniker *iface)
{
EnumMonikerImpl *e = impl_from_IEnumMoniker(iface);
ULONG refcount = InterlockedDecrement(&e->ref);
unsigned int i;
TRACE("%p, refcount %lu.\n", iface, refcount);
if (!refcount)
{
for (i = 0; i < e->count; ++i)
IMoniker_Release(e->monikers[i]);
heap_free(e->monikers);
heap_free(e);
}
return refcount;
}
static HRESULT WINAPI EnumMonikerImpl_Next(IEnumMoniker *iface, ULONG count,
IMoniker **m, ULONG *fetched)
{
EnumMonikerImpl *e = impl_from_IEnumMoniker(iface);
unsigned int i;
TRACE("%p, %lu, %p, %p.\n", iface, count, m, fetched);
if (!m)
return E_INVALIDARG;
*m = NULL;
/* retrieve the requested number of moniker from the current position */
for (i = 0; (e->pos < e->count) && (i < count); ++i)
{
m[i] = e->monikers[e->pos++];
IMoniker_AddRef(m[i]);
}
if (fetched)
*fetched = i;
return i == count ? S_OK : S_FALSE;
}
static HRESULT WINAPI EnumMonikerImpl_Skip(IEnumMoniker *iface, ULONG count)
{
EnumMonikerImpl *e = impl_from_IEnumMoniker(iface);
TRACE("%p, %lu.\n", iface, count);
if (!count)
return S_OK;
if ((e->pos + count) >= e->count)
return S_FALSE;
e->pos += count;
return S_OK;
}
static HRESULT WINAPI EnumMonikerImpl_Reset(IEnumMoniker* iface)
{
EnumMonikerImpl *e = impl_from_IEnumMoniker(iface);
TRACE("%p.\n", iface);
e->pos = 0;
return S_OK;
}
static HRESULT WINAPI EnumMonikerImpl_Clone(IEnumMoniker *iface, IEnumMoniker **ret)
{
TRACE("%p, %p.\n", iface, ret);
if (!ret)
return E_INVALIDARG;
*ret = NULL;
return E_NOTIMPL;
}
static const IEnumMonikerVtbl VT_EnumMonikerImpl =
{
EnumMonikerImpl_QueryInterface,
EnumMonikerImpl_AddRef,
EnumMonikerImpl_Release,
EnumMonikerImpl_Next,
EnumMonikerImpl_Skip,
EnumMonikerImpl_Reset,
EnumMonikerImpl_Clone
};
static HRESULT create_enumerator(IMoniker **components, unsigned int count, BOOL forward, IEnumMoniker **ret)
{
EnumMonikerImpl *object;
unsigned int i;
if (!(object = heap_alloc_zero(sizeof(*object))))
return E_OUTOFMEMORY;
object->IEnumMoniker_iface.lpVtbl = &VT_EnumMonikerImpl;
object->ref = 1;
object->count = count;
if (!(object->monikers = heap_calloc(count, sizeof(*object->monikers))))
{
heap_free(object);
return E_OUTOFMEMORY;
}
for (i = 0; i < count; ++i)
{
object->monikers[i] = forward ? components[i] : components[count - i - 1];
IMoniker_AddRef(object->monikers[i]);
}
*ret = &object->IEnumMoniker_iface;
return S_OK;
}
static const IMonikerVtbl VT_CompositeMonikerImpl =
{
CompositeMonikerImpl_QueryInterface,
CompositeMonikerImpl_AddRef,
CompositeMonikerImpl_Release,
CompositeMonikerImpl_GetClassID,
CompositeMonikerImpl_IsDirty,
CompositeMonikerImpl_Load,
CompositeMonikerImpl_Save,
CompositeMonikerImpl_GetSizeMax,
CompositeMonikerImpl_BindToObject,
CompositeMonikerImpl_BindToStorage,
CompositeMonikerImpl_Reduce,
CompositeMonikerImpl_ComposeWith,
CompositeMonikerImpl_Enum,
CompositeMonikerImpl_IsEqual,
CompositeMonikerImpl_Hash,
CompositeMonikerImpl_IsRunning,
CompositeMonikerImpl_GetTimeOfLastChange,
CompositeMonikerImpl_Inverse,
CompositeMonikerImpl_CommonPrefixWith,
CompositeMonikerImpl_RelativePathTo,
CompositeMonikerImpl_GetDisplayName,
CompositeMonikerImpl_ParseDisplayName,
CompositeMonikerImpl_IsSystemMoniker
};
/********************************************************************************/
/* Virtual function table for the IROTData class. */
static const IROTDataVtbl VT_ROTDataImpl =
{
CompositeMonikerROTDataImpl_QueryInterface,
CompositeMonikerROTDataImpl_AddRef,
CompositeMonikerROTDataImpl_Release,
CompositeMonikerROTDataImpl_GetComparisonData
};
static const IMarshalVtbl VT_MarshalImpl =
{
CompositeMonikerMarshalImpl_QueryInterface,
CompositeMonikerMarshalImpl_AddRef,
CompositeMonikerMarshalImpl_Release,
CompositeMonikerMarshalImpl_GetUnmarshalClass,
CompositeMonikerMarshalImpl_GetMarshalSizeMax,
CompositeMonikerMarshalImpl_MarshalInterface,
CompositeMonikerMarshalImpl_UnmarshalInterface,
CompositeMonikerMarshalImpl_ReleaseMarshalData,
CompositeMonikerMarshalImpl_DisconnectObject
};
struct comp_node
{
IMoniker *moniker;
struct comp_node *parent;
struct comp_node *left;
struct comp_node *right;
};
static HRESULT moniker_get_tree_representation(IMoniker *moniker, struct comp_node *parent,
struct comp_node **ret)
{
CompositeMonikerImpl *comp_moniker;
struct comp_node *node;
if (!(node = heap_alloc_zero(sizeof(*node))))
return E_OUTOFMEMORY;
node->parent = parent;
if ((comp_moniker = unsafe_impl_from_IMoniker(moniker)))
{
moniker_get_tree_representation(comp_moniker->left, node, &node->left);
moniker_get_tree_representation(comp_moniker->right, node, &node->right);
}
else
{
node->moniker = moniker;
IMoniker_AddRef(node->moniker);
}
*ret = node;
return S_OK;
}
static struct comp_node *moniker_tree_get_rightmost(struct comp_node *root)
{
if (!root->left && !root->right) return root->moniker ? root : NULL;
while (root->right) root = root->right;
return root;
}
static struct comp_node *moniker_tree_get_leftmost(struct comp_node *root)
{
if (!root->left && !root->right) return root->moniker ? root : NULL;
while (root->left) root = root->left;
return root;
}
static void moniker_tree_node_release(struct comp_node *node)
{
if (node->moniker)
IMoniker_Release(node->moniker);
heap_free(node);
}
static void moniker_tree_release(struct comp_node *node)
{
if (node->left)
moniker_tree_node_release(node->left);
if (node->right)
moniker_tree_node_release(node->right);
moniker_tree_node_release(node);
}
static void moniker_tree_replace_node(struct comp_node *node, struct comp_node *replace_with)
{
if (node->parent)
{
if (node->parent->left == node) node->parent->left = replace_with;
else node->parent->right = replace_with;
replace_with->parent = node->parent;
}
else if (replace_with->moniker)
{
/* Replacing root with non-composite */
node->moniker = replace_with->moniker;
IMoniker_AddRef(node->moniker);
node->left = node->right = NULL;
moniker_tree_node_release(replace_with);
}
else
{
/* Attaching composite branches to the root */
node->left = replace_with->left;
node->right = replace_with->right;
moniker_tree_node_release(replace_with);
}
}
static void moniker_tree_discard(struct comp_node *node, BOOL left)
{
if (node->parent)
{
moniker_tree_replace_node(node->parent, left ? node->parent->left : node->parent->right);
moniker_tree_node_release(node);
}
else
{
IMoniker_Release(node->moniker);
node->moniker = NULL;
}
}
static HRESULT moniker_create_from_tree(const struct comp_node *root, unsigned int *count, IMoniker **moniker)
{
IMoniker *left_moniker, *right_moniker;
HRESULT hr;
*moniker = NULL;
/* Non-composite node */
if (!root->left && !root->right)
{
(*count)++;
*moniker = root->moniker;
if (*moniker) IMoniker_AddRef(*moniker);
return S_OK;
}
if (FAILED(hr = moniker_create_from_tree(root->left, count, &left_moniker))) return hr;
if (FAILED(hr = moniker_create_from_tree(root->right, count, &right_moniker)))
{
IMoniker_Release(left_moniker);
return hr;
}
hr = CreateGenericComposite(left_moniker, right_moniker, moniker);
IMoniker_Release(left_moniker);
IMoniker_Release(right_moniker);
return hr;
}
static void moniker_get_tree_comp_count(const struct comp_node *root, unsigned int *count)
{
if (!root->left && !root->right)
{
(*count)++;
return;
}
moniker_get_tree_comp_count(root->left, count);
moniker_get_tree_comp_count(root->right, count);
}
static HRESULT composite_get_rightmost(CompositeMonikerImpl *composite, IMoniker **left, IMoniker **rightmost)
{
struct comp_node *root, *node;
unsigned int count;
HRESULT hr;
/* Shortcut for trivial case when right component is non-composite */
if (!unsafe_impl_from_IMoniker(composite->right))
{
*left = composite->left;
IMoniker_AddRef(*left);
*rightmost = composite->right;
IMoniker_AddRef(*rightmost);
return S_OK;
}
*left = *rightmost = NULL;
if (FAILED(hr = moniker_get_tree_representation(&composite->IMoniker_iface, NULL, &root)))
return hr;
if (!(node = moniker_tree_get_rightmost(root)))
{
WARN("Couldn't get right most component.\n");
return E_FAIL;
}
*rightmost = node->moniker;
IMoniker_AddRef(*rightmost);
moniker_tree_discard(node, TRUE);
hr = moniker_create_from_tree(root, &count, left);
moniker_tree_release(root);
if (FAILED(hr))
{
IMoniker_Release(*rightmost);
*rightmost = NULL;
}
return hr;
}
static HRESULT composite_get_leftmost(CompositeMonikerImpl *composite, IMoniker **leftmost)
{
struct comp_node *root, *node;
HRESULT hr;
if (!unsafe_impl_from_IMoniker(composite->left))
{
*leftmost = composite->left;
IMoniker_AddRef(*leftmost);
return S_OK;
}
if (FAILED(hr = moniker_get_tree_representation(&composite->IMoniker_iface, NULL, &root)))
return hr;
if (!(node = moniker_tree_get_leftmost(root)))
{
WARN("Couldn't get right most component.\n");
return E_FAIL;
}
*leftmost = node->moniker;
IMoniker_AddRef(*leftmost);
moniker_tree_release(root);
return S_OK;
}
static HRESULT moniker_simplify_composition(IMoniker *left, IMoniker *right,
unsigned int *count, IMoniker **new_left, IMoniker **new_right)
{
struct comp_node *left_tree, *right_tree;
unsigned int modified = 0;
HRESULT hr = S_OK;
IMoniker *c;
*count = 0;
moniker_get_tree_representation(left, NULL, &left_tree);
moniker_get_tree_representation(right, NULL, &right_tree);
/* Simplify by composing trees together, in a non-generic way. */
for (;;)
{
struct comp_node *l, *r;
if (!(l = moniker_tree_get_rightmost(left_tree))) break;
if (!(r = moniker_tree_get_leftmost(right_tree))) break;
c = NULL;
if (FAILED(IMoniker_ComposeWith(l->moniker, r->moniker, TRUE, &c))) break;
modified++;
if (c)
{
/* Replace with composed moniker on the left side */
IMoniker_Release(l->moniker);
l->moniker = c;
}
else
moniker_tree_discard(l, TRUE);
moniker_tree_discard(r, FALSE);
}
if (!modified)
{
*new_left = left;
IMoniker_AddRef(*new_left);
*new_right = right;
IMoniker_AddRef(*new_right);
moniker_get_tree_comp_count(left_tree, count);
moniker_get_tree_comp_count(right_tree, count);
}
else
{
hr = moniker_create_from_tree(left_tree, count, new_left);
if (SUCCEEDED(hr))
hr = moniker_create_from_tree(right_tree, count, new_right);
}
moniker_tree_release(left_tree);
moniker_tree_release(right_tree);
if (FAILED(hr))
{
if (*new_left) IMoniker_Release(*new_left);
if (*new_right) IMoniker_Release(*new_right);
*new_left = *new_right = NULL;
}
return hr;
}
static HRESULT create_composite(IMoniker *left, IMoniker *right, IMoniker **moniker)
{
IMoniker *new_left, *new_right;
CompositeMonikerImpl *object;
HRESULT hr;
*moniker = NULL;
if (!(object = heap_alloc_zero(sizeof(*object))))
return E_OUTOFMEMORY;
object->IMoniker_iface.lpVtbl = &VT_CompositeMonikerImpl;
object->IROTData_iface.lpVtbl = &VT_ROTDataImpl;
object->IMarshal_iface.lpVtbl = &VT_MarshalImpl;
object->ref = 1;
/* Uninitialized moniker created by object activation */
if (!left && !right)
{
*moniker = &object->IMoniker_iface;
return S_OK;
}
if (FAILED(hr = moniker_simplify_composition(left, right, &object->comp_count, &new_left, &new_right)))
{
IMoniker_Release(&object->IMoniker_iface);
return hr;
}
if (!new_left || !new_right)
{
*moniker = new_left ? new_left : new_right;
IMoniker_Release(&object->IMoniker_iface);
return S_OK;
}
object->left = new_left;
object->right = new_right;
*moniker = &object->IMoniker_iface;
return S_OK;
}
/******************************************************************************
* CreateGenericComposite [OLE32.@]
******************************************************************************/
HRESULT WINAPI CreateGenericComposite(IMoniker *left, IMoniker *right, IMoniker **composite)
{
TRACE("%p, %p, %p\n", left, right, composite);
if (!composite)
return E_POINTER;
if (!left && right)
{
*composite = right;
IMoniker_AddRef(*composite);
return S_OK;
}
else if (left && !right)
{
*composite = left;
IMoniker_AddRef(*composite);
return S_OK;
}
else if (!left && !right)
return S_OK;
return create_composite(left, right, composite);
}
/******************************************************************************
* MonikerCommonPrefixWith [OLE32.@]
******************************************************************************/
HRESULT WINAPI
MonikerCommonPrefixWith(IMoniker* pmkThis,IMoniker* pmkOther,IMoniker** ppmkCommon)
{
FIXME("(),stub!\n");
return E_NOTIMPL;
}
HRESULT WINAPI CompositeMoniker_CreateInstance(IClassFactory *iface,
IUnknown *pUnk, REFIID riid, void **ppv)
{
IMoniker* pMoniker;
HRESULT hr;
TRACE("(%p, %s, %p)\n", pUnk, debugstr_guid(riid), ppv);
*ppv = NULL;
if (pUnk)
return CLASS_E_NOAGGREGATION;
hr = create_composite(NULL, NULL, &pMoniker);
if (SUCCEEDED(hr))
{
hr = IMoniker_QueryInterface(pMoniker, riid, ppv);
IMoniker_Release(pMoniker);
}
return hr;
}
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