blob: 90798c33758ed011ba980df83ccd966e79d7a61c [file] [log] [blame]
/*
* Copyright (C) 2016 Apple 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:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 APPLE INC. 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 "config.h"
#include "TextAnalyzerHelper.h"
#if USE(DIRECT2D)
namespace WebCore {
TextAnalyzerHelper::TextAnalyzerHelper(WCHAR* localeName, WCHAR* buffer, unsigned bufferLength)
: m_localeName(localeName)
, m_buffer(buffer)
, m_bufferLength(bufferLength)
{
}
HRESULT TextAnalyzerHelper::QueryInterface(_In_ REFIID riid, _COM_Outptr_ void** ppvObject)
{
if (!ppvObject)
return E_POINTER;
*ppvObject = nullptr;
if (IsEqualGUID(riid, __uuidof(IDWriteTextAnalysisSink)))
*ppvObject = static_cast<IDWriteTextAnalysisSink*>(this);
else if (IsEqualGUID(riid, __uuidof(IDWriteTextAnalysisSource)))
*ppvObject = static_cast<IDWriteTextAnalysisSink*>(this);
else
return E_FAIL;
AddRef();
return S_OK;
}
ULONG TextAnalyzerHelper::AddRef()
{
return ++m_refCount;
}
ULONG TextAnalyzerHelper::Release()
{
ULONG newRef = --m_refCount;
if (!newRef)
delete(this);
return newRef;
}
HRESULT TextAnalyzerHelper::GetTextAtPosition(UINT32 textPosition, const WCHAR** textString, UINT32* textLength)
{
if (!textString || !textLength)
return E_POINTER;
if (textPosition >= m_bufferLength) {
*textString = nullptr;
*textLength = 0;
return S_OK;
}
*textString = &m_buffer[textPosition];
*textLength = m_bufferLength - textPosition;
return S_OK;
}
HRESULT TextAnalyzerHelper::GetTextBeforePosition(UINT32 textPosition, const WCHAR** textString, UINT32* textLength)
{
if (!textString || !textLength)
return E_POINTER;
if (!textPosition || textPosition > m_bufferLength) {
*textString = nullptr;
*textLength = 0;
return S_OK;
}
*textString = &m_buffer[0];
*textLength = textPosition;
return S_OK;
}
HRESULT TextAnalyzerHelper::GetLocaleName(UINT32 textPosition, UINT32* textLength, const WCHAR** localeName)
{
*localeName = m_localeName;
*textLength = m_bufferLength - textPosition;
return S_OK;
}
HRESULT TextAnalyzerHelper::GetNumberSubstitution(UINT32 textPosition, UINT32* textLength, IDWriteNumberSubstitution** numberSubstitution)
{
*textLength = m_bufferLength - textPosition;
return S_OK;
}
HRESULT TextAnalyzerHelper::SetLineBreakpoints(UINT32 textPosition, UINT32 textLength, const DWRITE_LINE_BREAKPOINT*)
{
return E_NOTIMPL;
}
HRESULT TextAnalyzerHelper::SetScriptAnalysis(UINT32 textPosition, UINT32 textLength, const DWRITE_SCRIPT_ANALYSIS* analysis)
{
m_analysis = *analysis;
return S_OK;
}
HRESULT TextAnalyzerHelper::SetBidiLevel(UINT32 textPosition, UINT32 textLength, UINT8 explicitLevel, UINT8 resolvedLevel)
{
return E_NOTIMPL;
}
HRESULT TextAnalyzerHelper::SetNumberSubstitution(UINT32 textPosition, UINT32 textLength, IDWriteNumberSubstitution*)
{
return E_NOTIMPL;
}
}
#endif