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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:expandtab:shiftwidth=2:tabstop=2:
*/
/* 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/. */
#ifndef _ACCESSIBLE_TEXT_H
#define _ACCESSIBLE_TEXT_H
#include <utility>
#include "AccessibleText.h"
#include "nsIAccessibleText.h"
namespace mozilla {
template <class T>
class StaticAutoPtr;
template <class T>
class StaticRefPtr;
namespace a11y {
class HyperTextAccessibleBase;
class HyperTextAccessibleWrap;
class ia2AccessibleText : public IAccessibleText {
public:
// IAccessibleText
virtual HRESULT STDMETHODCALLTYPE addSelection(
/* [in] */ long startOffset,
/* [in] */ long endOffset);
virtual /* [propget] */ HRESULT STDMETHODCALLTYPE get_attributes(
/* [in] */ long offset,
/* [out] */ long* startOffset,
/* [out] */ long* endOffset,
/* [retval][out] */ BSTR* textAttributes);
virtual /* [propget] */ HRESULT STDMETHODCALLTYPE get_caretOffset(
/* [retval][out] */ long* offset);
virtual /* [propget] */ HRESULT STDMETHODCALLTYPE get_characterExtents(
/* [in] */ long offset,
/* [in] */ enum IA2CoordinateType coordType,
/* [out] */ long* x,
/* [out] */ long* y,
/* [out] */ long* width,
/* [retval][out] */ long* height);
virtual /* [propget] */ HRESULT STDMETHODCALLTYPE get_nSelections(
/* [retval][out] */ long* nSelections);
virtual /* [propget] */ HRESULT STDMETHODCALLTYPE get_offsetAtPoint(
/* [in] */ long x,
/* [in] */ long y,
/* [in] */ enum IA2CoordinateType coordType,
/* [retval][out] */ long* offset);
virtual /* [propget] */ HRESULT STDMETHODCALLTYPE get_selection(
/* [in] */ long selectionIndex,
/* [out] */ long* startOffset,
/* [retval][out] */ long* endOffset);
virtual /* [propget] */ HRESULT STDMETHODCALLTYPE get_text(
/* [in] */ long startOffset,
/* [in] */ long endOffset,
/* [retval][out] */ BSTR* text);
virtual /* [propget] */ HRESULT STDMETHODCALLTYPE get_textBeforeOffset(
/* [in] */ long offset,
/* [in] */ enum IA2TextBoundaryType boundaryType,
/* [out] */ long* startOffset,
/* [out] */ long* endOffset,
/* [retval][out] */ BSTR* text);
virtual /* [propget] */ HRESULT STDMETHODCALLTYPE get_textAfterOffset(
/* [in] */ long offset,
/* [in] */ enum IA2TextBoundaryType boundaryType,
/* [out] */ long* startOffset,
/* [out] */ long* endOffset,
/* [retval][out] */ BSTR* text);
virtual /* [propget] */ HRESULT STDMETHODCALLTYPE get_textAtOffset(
/* [in] */ long offset,
/* [in] */ enum IA2TextBoundaryType boundaryType,
/* [out] */ long* startOffset,
/* [out] */ long* endOffset,
/* [retval][out] */ BSTR* text);
virtual HRESULT STDMETHODCALLTYPE removeSelection(
/* [in] */ long selectionIndex);
virtual HRESULT STDMETHODCALLTYPE setCaretOffset(
/* [in] */ long offset);
virtual HRESULT STDMETHODCALLTYPE setSelection(
/* [in] */ long selectionIndex,
/* [in] */ long startOffset,
/* [in] */ long endOffset);
virtual /* [propget] */ HRESULT STDMETHODCALLTYPE get_nCharacters(
/* [retval][out] */ long* nCharacters);
virtual HRESULT STDMETHODCALLTYPE scrollSubstringTo(
/* [in] */ long startIndex,
/* [in] */ long endIndex,
/* [in] */ enum IA2ScrollType scrollType);
virtual HRESULT STDMETHODCALLTYPE scrollSubstringToPoint(
/* [in] */ long startIndex,
/* [in] */ long endIndex,
/* [in] */ enum IA2CoordinateType coordinateType,
/* [in] */ long x,
/* [in] */ long y);
virtual /* [propget] */ HRESULT STDMETHODCALLTYPE get_newText(
/* [retval][out] */ IA2TextSegment* newText);
virtual /* [propget] */ HRESULT STDMETHODCALLTYPE get_oldText(
/* [retval][out] */ IA2TextSegment* oldText);
static void InitTextChangeData();
static void UpdateTextChangeData(HyperTextAccessibleBase* aAcc, bool aInsert,
const nsAString& aStr, int32_t aStart,
uint32_t aLen);
protected:
// This can't be a RefPtr because RemoteAccessibles aren't ref counted. It
// can't be an id because this is global and ids are only unique within the
// document. Since this is only used for comparison, we use a raw pointer.
// This should *never* be dereferenced, only used for comparison!
static HyperTextAccessibleBase* sLastTextChangeAcc;
static StaticAutoPtr<nsString> sLastTextChangeString;
static bool sLastTextChangeWasInsert;
static uint32_t sLastTextChangeStart;
static uint32_t sLastTextChangeEnd;
private:
HRESULT GetModifiedText(bool aGetInsertedText, IA2TextSegment* aNewText);
AccessibleTextBoundary GetGeckoTextBoundary(
enum IA2TextBoundaryType coordinateType);
HyperTextAccessibleBase* TextAcc();
/**
* This can return null for two reasons. The HRESULT indicates the reason:
* CO_E_OBJNOTCONNECTED: The Accessible is dead.
* E_NOTIMPL: It isn't a LocalAccessible (so we can't support the method
* being called yet).
*/
std::pair<HyperTextAccessibleWrap*, HRESULT> LocalTextAcc();
};
} // namespace a11y
} // namespace mozilla
#define FORWARD_IACCESSIBLETEXT(Class) \
virtual HRESULT STDMETHODCALLTYPE addSelection(long startOffset, \
long endOffset) { \
return Class::addSelection(startOffset, endOffset); \
} \
\
virtual HRESULT STDMETHODCALLTYPE get_attributes( \
long offset, long* startOffset, long* endOffset, BSTR* textAttributes) { \
return Class::get_attributes(offset, startOffset, endOffset, \
textAttributes); \
} \
\
virtual HRESULT STDMETHODCALLTYPE get_caretOffset(long* offset) { \
return Class::get_caretOffset(offset); \
} \
\
virtual HRESULT STDMETHODCALLTYPE get_characterExtents( \
long offset, enum IA2CoordinateType coordType, long* x, long* y, \
long* width, long* height) { \
return Class::get_characterExtents(offset, coordType, x, y, width, \
height); \
} \
\
virtual HRESULT STDMETHODCALLTYPE get_nSelections(long* nSelections) { \
return Class::get_nSelections(nSelections); \
} \
\
virtual HRESULT STDMETHODCALLTYPE get_offsetAtPoint( \
long x, long y, enum IA2CoordinateType coordType, long* offset) { \
return Class::get_offsetAtPoint(x, y, coordType, offset); \
} \
\
virtual HRESULT STDMETHODCALLTYPE get_selection( \
long selectionIndex, long* startOffset, long* endOffset) { \
return Class::get_selection(selectionIndex, startOffset, endOffset); \
} \
\
virtual HRESULT STDMETHODCALLTYPE get_text(long startOffset, long endOffset, \
BSTR* text) { \
return Class::get_text(startOffset, endOffset, text); \
} \
\
virtual HRESULT STDMETHODCALLTYPE get_textBeforeOffset( \
long offset, enum IA2TextBoundaryType boundaryType, long* startOffset, \
long* endOffset, BSTR* text) { \
return Class::get_textBeforeOffset(offset, boundaryType, startOffset, \
endOffset, text); \
} \
\
virtual HRESULT STDMETHODCALLTYPE get_textAfterOffset( \
long offset, enum IA2TextBoundaryType boundaryType, long* startOffset, \
long* endOffset, BSTR* text) { \
return Class::get_textAfterOffset(offset, boundaryType, startOffset, \
endOffset, text); \
} \
\
virtual HRESULT STDMETHODCALLTYPE get_textAtOffset( \
long offset, enum IA2TextBoundaryType boundaryType, long* startOffset, \
long* endOffset, BSTR* text) { \
return Class::get_textAtOffset(offset, boundaryType, startOffset, \
endOffset, text); \
} \
\
virtual HRESULT STDMETHODCALLTYPE removeSelection(long selectionIndex) { \
return Class::removeSelection(selectionIndex); \
} \
\
virtual HRESULT STDMETHODCALLTYPE setCaretOffset(long offset) { \
return Class::setCaretOffset(offset); \
} \
\
virtual HRESULT STDMETHODCALLTYPE setSelection( \
long selectionIndex, long startOffset, long endOffset) { \
return Class::setSelection(selectionIndex, startOffset, endOffset); \
} \
\
virtual HRESULT STDMETHODCALLTYPE get_nCharacters(long* nCharacters) { \
return Class::get_nCharacters(nCharacters); \
} \
\
virtual HRESULT STDMETHODCALLTYPE scrollSubstringTo( \
long startIndex, long endIndex, enum IA2ScrollType scrollType) { \
return Class::scrollSubstringTo(startIndex, endIndex, scrollType); \
} \
\
virtual HRESULT STDMETHODCALLTYPE scrollSubstringToPoint( \
long startIndex, long endIndex, enum IA2CoordinateType coordinateType, \
long x, long y) { \
return Class::scrollSubstringToPoint(startIndex, endIndex, coordinateType, \
x, y); \
} \
\
virtual HRESULT STDMETHODCALLTYPE get_newText(IA2TextSegment* newText) { \
return Class::get_newText(newText); \
} \
\
virtual HRESULT STDMETHODCALLTYPE get_oldText(IA2TextSegment* oldText) { \
return Class::get_oldText(oldText); \
}
#endif
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