/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ /* * This file is part of the LibreOffice project. * * This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. * * This file incorporates work covered by the following license notice: * * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed * with this work for additional information regarding copyright * ownership. The ASF licenses this file to you under the Apache * License, Version 2.0 (the "License"); you may not use this file * except in compliance with the License. You may obtain a copy of * the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
// AccTextBase.cpp: implementation of the CAccTextBase class.
namespace
{
sal_Int16 lcl_matchIA2TextBoundaryType(IA2TextBoundaryType boundaryType)
{ switch (boundaryType)
{ case IA2_TEXT_BOUNDARY_CHAR: return css::accessibility::AccessibleTextType::CHARACTER; case IA2_TEXT_BOUNDARY_WORD: return css::accessibility::AccessibleTextType::WORD; case IA2_TEXT_BOUNDARY_SENTENCE: return css::accessibility::AccessibleTextType::SENTENCE; case IA2_TEXT_BOUNDARY_PARAGRAPH: return css::accessibility::AccessibleTextType::PARAGRAPH; case IA2_TEXT_BOUNDARY_LINE: return css::accessibility::AccessibleTextType::LINE; case IA2_TEXT_BOUNDARY_ALL: // assert here, better handle it directly at call site
assert(false
&& "No match for IA2_TEXT_BOUNDARY_ALL, handle at call site."); break; default: break;
}
/** * Get special selection. * @param startOffset Start selection offset. * @param endOffset End selection offset. * @param success Variant to accept the result of if the method call is successful. * @return Result.
*/
COM_DECLSPEC_NOTHROW STDMETHODIMP CAccTextBase::get_addSelection(long startOffset, long endOffset)
{
SolarMutexGuard g;
/** * Get character extents. * @param offset Offset. * @param x Variant to accept x position. * @param y Variant to accept y position. * @param width Variant to accept width. * @param Height Variant to accept height. * @return Result.
*/
COM_DECLSPEC_NOTHROW STDMETHODIMP CAccTextBase::get_characterExtents(long offset, IA2CoordinateType coordType, long * x, long * y, long * width, long * height)
{
SolarMutexGuard g;
try {
if (x == nullptr || height == nullptr || y == nullptr || width == nullptr) return E_INVALIDARG;
if(!pRXText.is()) return E_FAIL;
if (offset < 0 || offset > pRXText->getCharacterCount()) return E_FAIL;
// pRXText->getCharacterBounds() have different implement in different acc component // But we need return the width/height == 1 for every component when offset == text length. // So we ignore the return result of pRXText->getCharacterBounds() when offset == text length. if (offset == pRXText->getCharacterCount())
{
*width = 1;
*height = 1;
} else
{
*width = rectangle.Width;
*height = rectangle.Height;
}
/** * Get offset of some special point. * @param x X position of one point. * @param x Y position of one point. * @param coordType Type. * @param offset Variant to accept offset. * @return Result.
*/
COM_DECLSPEC_NOTHROW STDMETHODIMP CAccTextBase::get_offsetAtPoint(long x, long y, IA2CoordinateType coordType, long * offset)
{
SolarMutexGuard g;
try {
if (offset == nullptr) return E_INVALIDARG;
if(!pRXText.is()) return E_FAIL;
css::awt::Point point;
point.X = x;
point.Y = y;
if (coordType == IA2_COORDTYPE_SCREEN_RELATIVE)
{ // convert from screen to local coordinates
Reference<XAccessibleContext> xContext = pUNOInterface->getAccessibleContext();
Reference<XAccessibleComponent> xComponent(xContext, UNO_QUERY); if (!xComponent.is()) return S_FALSE;
/** * Get selection range. * @param selection selection count. * @param startOffset Variant to accept the start offset of special selection. * @param endOffset Variant to accept the end offset of special selection. * @return Result.
*/
COM_DECLSPEC_NOTHROW STDMETHODIMP CAccTextBase::get_selection(long selectionIndex, long * startOffset, long * endOffset)
{
SolarMutexGuard g;
/** * Get special text. * @param startOffset Start position of special range. * @param endOffset End position of special range. * @param text Variant to accept the text of special range. * @return Result.
*/
COM_DECLSPEC_NOTHROW STDMETHODIMP CAccTextBase::get_text(long startOffset, long endOffset, BSTR * text)
{
SolarMutexGuard g;
try {
if (text == nullptr) return E_INVALIDARG;
if(!pRXText.is()) return E_FAIL;
if (endOffset == -1)
endOffset = pRXText->getCharacterCount();
if (endOffset < 0 || endOffset < startOffset) return E_FAIL;
/** * Get special text before some position. * @param offset Special position. * @param boundaryType Boundary type. * @param startOffset Variant to accept the start offset. * @param endOffset Variant to accept the end offset. * @param text Variant to accept the special text. * @return Result.
*/
COM_DECLSPEC_NOTHROW STDMETHODIMP CAccTextBase::get_textBeforeOffset(long offset, IA2TextBoundaryType boundaryType, long * startOffset, long * endOffset, BSTR * text)
{
SolarMutexGuard g;
try {
if (startOffset == nullptr || endOffset == nullptr || text == nullptr) return E_INVALIDARG;
/** * Get special text after some position. * @param offset Special position. * @param boundaryType Boundary type. * @param startOffset Variant to accept the start offset. * @param endOffset Variant to accept the end offset. * @param text Variant to accept the special text. * @return Result.
*/
COM_DECLSPEC_NOTHROW STDMETHODIMP CAccTextBase::get_textAfterOffset(long offset, IA2TextBoundaryType boundaryType, long * startOffset, long * endOffset, BSTR * text)
{
SolarMutexGuard g;
try {
if (startOffset == nullptr || endOffset == nullptr || text == nullptr) return E_INVALIDARG;
/** * Get special text at some position. * @param offset Special position. * @param boundaryType Boundary type. * @param startOffset Variant to accept the start offset. * @param endOffset Variant to accept the end offset. * @param text Variant to accept the special text. * @return Result.
*/
COM_DECLSPEC_NOTHROW STDMETHODIMP CAccTextBase::get_textAtOffset(long offset, IA2TextBoundaryType boundaryType, long * startOffset, long * endOffset, BSTR * text)
{
SolarMutexGuard g;
try {
if (startOffset == nullptr || text == nullptr ||endOffset == nullptr) return E_INVALIDARG;
/** * Set caret position. * @param offset Special position. * @param success Variant to accept the method called result. * @return Result.
*/
COM_DECLSPEC_NOTHROW STDMETHODIMP CAccTextBase::setCaretOffset(long offset)
{
SolarMutexGuard g;
try {
if(!pRXText.is()) return E_FAIL;
pRXText->setCaretPosition(offset);
return S_OK;
} catch(...) { return E_FAIL; }
}
/** * Set special selection. * @param selectionIndex Special selection index. * @param startOffset start position. * @param endOffset end position. * @param success Variant to accept the method called result. * @return Result.
*/
COM_DECLSPEC_NOTHROW STDMETHODIMP CAccTextBase::setSelection(long, long startOffset, long endOffset)
{
SolarMutexGuard g;
try {
if(!pRXText.is())
{ return E_FAIL;
}
pRXText->setSelection(startOffset, endOffset);
return S_OK;
} catch(...) { return E_FAIL; }
}
/** * Get characters count. * @param nCharacters Variant to accept the characters count. * @return Result.
*/
COM_DECLSPEC_NOTHROW STDMETHODIMP CAccTextBase::get_nCharacters(long * nCharacters)
{
SolarMutexGuard g;
/** * Scroll to special sub-string . * @param startIndex Start index of sub string. * @param endIndex End index of sub string. * @return Result.
*/
COM_DECLSPEC_NOTHROW STDMETHODIMP CAccTextBase::scrollSubstringToPoint(long, long, IA2CoordinateType, long, long )
{ return E_NOTIMPL;
}
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