| // Copyright 2010-2015, Google Inc. |
| // All rights reserved. |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // * Redistributions in binary form must reproduce the above |
| // copyright notice, this list of conditions and the following disclaimer |
| // in the documentation and/or other materials provided with the |
| // distribution. |
| // * Neither the name of Google Inc. nor the names of its |
| // contributors may be used to endorse or promote products derived from |
| // this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| #include "win32/tip/tip_enum_display_attributes.h" |
| |
| #include "win32/tip/tip_display_attributes.h" |
| |
| namespace mozc { |
| namespace win32 { |
| namespace tsf { |
| |
| TipEnumDisplayAttributes::TipEnumDisplayAttributes() |
| : index_(0) { |
| } |
| |
| TipEnumDisplayAttributes::~TipEnumDisplayAttributes() { |
| } |
| |
| // Implements the IUnknown::QueryInterface() function. |
| HRESULT STDMETHODCALLTYPE TipEnumDisplayAttributes::QueryInterface( |
| REFIID interface_id, void **object) { |
| if (*object == nullptr) { |
| return E_INVALIDARG; |
| } |
| |
| // Find a matching interface from the ones implemented by this object. |
| if (::IsEqualIID(interface_id, IID_IUnknown)) { |
| *object = static_cast<IUnknown *>(this); |
| AddRef(); |
| return S_OK; |
| } else if (::IsEqualIID(interface_id, IID_IEnumTfDisplayAttributeInfo)) { |
| *object = static_cast<IEnumTfDisplayAttributeInfo *>(this); |
| AddRef(); |
| return S_OK; |
| } |
| |
| *object = nullptr; |
| return E_NOINTERFACE; |
| } |
| |
| // Implements the IUnknown::AddRef() function. |
| ULONG STDMETHODCALLTYPE TipEnumDisplayAttributes::AddRef() { |
| return ref_count_.AddRefImpl(); |
| } |
| |
| // Implements the IUnknown::Release() function. |
| ULONG STDMETHODCALLTYPE TipEnumDisplayAttributes::Release() { |
| const ULONG count = ref_count_.ReleaseImpl(); |
| if (count == 0) { |
| delete this; |
| } |
| return count; |
| } |
| |
| // Implements the IEnumTfDisplayAttributeInfo::Clone() function. |
| HRESULT STDMETHODCALLTYPE TipEnumDisplayAttributes::Clone( |
| IEnumTfDisplayAttributeInfo **enum_attributes) { |
| // Check the output argument and return if it is invalid. |
| if (enum_attributes == nullptr) { |
| return E_INVALIDARG; |
| } |
| |
| // Create a new ImeEnumDisplayAttributeInfo object. |
| TipEnumDisplayAttributes *clone = new TipEnumDisplayAttributes; |
| |
| // Copy the state of the source object (except its reference count). |
| clone->index_ = index_; |
| *enum_attributes = clone; |
| (*enum_attributes)->AddRef(); |
| return S_OK; |
| } |
| |
| // Implements the IEnumTfDisplayAttributeInfo::Next() function. |
| // This function copies the |count| items from the current position into |
| // the |attribute_array|. |
| HRESULT STDMETHODCALLTYPE TipEnumDisplayAttributes::Next( |
| ULONG count, |
| ITfDisplayAttributeInfo **attribute_array, |
| ULONG *fetched) { |
| ULONG items = 0; |
| for (; items < count; ++items) { |
| ITfDisplayAttributeInfo *attribute = nullptr; |
| if (index_ == 0) { |
| attribute = new TipDisplayAttributeInput(); |
| } else if (index_ == 1) { |
| attribute = new TipDisplayAttributeConverted(); |
| } else { |
| break; |
| } |
| attribute_array[items] = attribute; |
| attribute->AddRef(); |
| ++index_; |
| } |
| |
| if (fetched) { |
| *fetched = items; |
| } |
| |
| return (items == count) ? S_OK : S_FALSE; |
| } |
| |
| // Implements the IEnumTfDisplayAttributeInfo::Reset() function. |
| // This function resets the iterator of this enumeration list. |
| HRESULT STDMETHODCALLTYPE TipEnumDisplayAttributes::Reset() { |
| index_ = 0; |
| return S_OK; |
| } |
| |
| // Implements the IEnumTfDisplayAttributeInfo::Skip() function. |
| // This function skips |count| items in this enumeration list. |
| HRESULT STDMETHODCALLTYPE TipEnumDisplayAttributes::Skip(ULONG count) { |
| // There is only a single item to enum |
| // so just skip it and avoid any overflow errors |
| if (count > 0 && index_ == 0) { |
| ++index_; |
| } |
| return S_OK; |
| } |
| |
| } // namespace tsf |
| } // namespace win32 |
| } // namespace mozc |