246 lines
13 KiB
C++
246 lines
13 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:expandtab:shiftwidth=2:tabstop=2:
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*/
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef _ACCESSIBLE_TEXT_H
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#define _ACCESSIBLE_TEXT_H
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#include <utility>
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#include "AccessibleText.h"
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#include "nsIAccessibleText.h"
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namespace mozilla {
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template <class T>
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class StaticAutoPtr;
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template <class T>
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class StaticRefPtr;
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namespace a11y {
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class HyperTextAccessibleBase;
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class ia2AccessibleText : public IAccessibleText {
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public:
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// IAccessibleText
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virtual HRESULT STDMETHODCALLTYPE addSelection(
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/* [in] */ long startOffset,
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/* [in] */ long endOffset);
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virtual /* [propget] */ HRESULT STDMETHODCALLTYPE get_attributes(
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/* [in] */ long offset,
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/* [out] */ long* startOffset,
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/* [out] */ long* endOffset,
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/* [retval][out] */ BSTR* textAttributes);
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virtual /* [propget] */ HRESULT STDMETHODCALLTYPE get_caretOffset(
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/* [retval][out] */ long* offset);
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virtual /* [propget] */ HRESULT STDMETHODCALLTYPE get_characterExtents(
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/* [in] */ long offset,
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/* [in] */ enum IA2CoordinateType coordType,
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/* [out] */ long* x,
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/* [out] */ long* y,
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/* [out] */ long* width,
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/* [retval][out] */ long* height);
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virtual /* [propget] */ HRESULT STDMETHODCALLTYPE get_nSelections(
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/* [retval][out] */ long* nSelections);
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virtual /* [propget] */ HRESULT STDMETHODCALLTYPE get_offsetAtPoint(
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/* [in] */ long x,
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/* [in] */ long y,
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/* [in] */ enum IA2CoordinateType coordType,
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/* [retval][out] */ long* offset);
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virtual /* [propget] */ HRESULT STDMETHODCALLTYPE get_selection(
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/* [in] */ long selectionIndex,
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/* [out] */ long* startOffset,
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/* [retval][out] */ long* endOffset);
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virtual /* [propget] */ HRESULT STDMETHODCALLTYPE get_text(
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/* [in] */ long startOffset,
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/* [in] */ long endOffset,
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/* [retval][out] */ BSTR* text);
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virtual /* [propget] */ HRESULT STDMETHODCALLTYPE get_textBeforeOffset(
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/* [in] */ long offset,
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/* [in] */ enum IA2TextBoundaryType boundaryType,
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/* [out] */ long* startOffset,
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/* [out] */ long* endOffset,
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/* [retval][out] */ BSTR* text);
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virtual /* [propget] */ HRESULT STDMETHODCALLTYPE get_textAfterOffset(
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/* [in] */ long offset,
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/* [in] */ enum IA2TextBoundaryType boundaryType,
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/* [out] */ long* startOffset,
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/* [out] */ long* endOffset,
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/* [retval][out] */ BSTR* text);
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virtual /* [propget] */ HRESULT STDMETHODCALLTYPE get_textAtOffset(
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/* [in] */ long offset,
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/* [in] */ enum IA2TextBoundaryType boundaryType,
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/* [out] */ long* startOffset,
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/* [out] */ long* endOffset,
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/* [retval][out] */ BSTR* text);
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virtual HRESULT STDMETHODCALLTYPE removeSelection(
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/* [in] */ long selectionIndex);
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virtual HRESULT STDMETHODCALLTYPE setCaretOffset(
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/* [in] */ long offset);
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virtual HRESULT STDMETHODCALLTYPE setSelection(
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/* [in] */ long selectionIndex,
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/* [in] */ long startOffset,
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/* [in] */ long endOffset);
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virtual /* [propget] */ HRESULT STDMETHODCALLTYPE get_nCharacters(
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/* [retval][out] */ long* nCharacters);
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virtual HRESULT STDMETHODCALLTYPE scrollSubstringTo(
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/* [in] */ long startIndex,
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/* [in] */ long endIndex,
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/* [in] */ enum IA2ScrollType scrollType);
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virtual HRESULT STDMETHODCALLTYPE scrollSubstringToPoint(
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/* [in] */ long startIndex,
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/* [in] */ long endIndex,
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/* [in] */ enum IA2CoordinateType coordinateType,
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/* [in] */ long x,
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/* [in] */ long y);
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virtual /* [propget] */ HRESULT STDMETHODCALLTYPE get_newText(
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/* [retval][out] */ IA2TextSegment* newText);
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virtual /* [propget] */ HRESULT STDMETHODCALLTYPE get_oldText(
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/* [retval][out] */ IA2TextSegment* oldText);
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static void InitTextChangeData();
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static void UpdateTextChangeData(HyperTextAccessibleBase* aAcc, bool aInsert,
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const nsAString& aStr, int32_t aStart,
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uint32_t aLen);
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protected:
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// This can't be a RefPtr because RemoteAccessibles aren't ref counted. It
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// can't be an id because this is global and ids are only unique within the
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// document. Since this is only used for comparison, we use a raw pointer.
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// This should *never* be dereferenced, only used for comparison!
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static HyperTextAccessibleBase* sLastTextChangeAcc;
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static StaticAutoPtr<nsString> sLastTextChangeString;
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static bool sLastTextChangeWasInsert;
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static uint32_t sLastTextChangeStart;
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static uint32_t sLastTextChangeEnd;
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private:
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HRESULT GetModifiedText(bool aGetInsertedText, IA2TextSegment* aNewText);
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AccessibleTextBoundary GetGeckoTextBoundary(
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enum IA2TextBoundaryType coordinateType);
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HyperTextAccessibleBase* TextAcc();
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};
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} // namespace a11y
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} // namespace mozilla
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#define FORWARD_IACCESSIBLETEXT(Class) \
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virtual HRESULT STDMETHODCALLTYPE addSelection(long startOffset, \
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long endOffset) { \
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return Class::addSelection(startOffset, endOffset); \
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} \
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\
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virtual HRESULT STDMETHODCALLTYPE get_attributes( \
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long offset, long* startOffset, long* endOffset, BSTR* textAttributes) { \
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return Class::get_attributes(offset, startOffset, endOffset, \
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textAttributes); \
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} \
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\
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virtual HRESULT STDMETHODCALLTYPE get_caretOffset(long* offset) { \
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return Class::get_caretOffset(offset); \
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} \
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\
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virtual HRESULT STDMETHODCALLTYPE get_characterExtents( \
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long offset, enum IA2CoordinateType coordType, long* x, long* y, \
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long* width, long* height) { \
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return Class::get_characterExtents(offset, coordType, x, y, width, \
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height); \
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} \
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\
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virtual HRESULT STDMETHODCALLTYPE get_nSelections(long* nSelections) { \
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return Class::get_nSelections(nSelections); \
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} \
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\
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virtual HRESULT STDMETHODCALLTYPE get_offsetAtPoint( \
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long x, long y, enum IA2CoordinateType coordType, long* offset) { \
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return Class::get_offsetAtPoint(x, y, coordType, offset); \
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} \
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\
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virtual HRESULT STDMETHODCALLTYPE get_selection( \
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long selectionIndex, long* startOffset, long* endOffset) { \
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return Class::get_selection(selectionIndex, startOffset, endOffset); \
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} \
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\
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virtual HRESULT STDMETHODCALLTYPE get_text(long startOffset, long endOffset, \
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BSTR* text) { \
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return Class::get_text(startOffset, endOffset, text); \
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} \
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\
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virtual HRESULT STDMETHODCALLTYPE get_textBeforeOffset( \
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long offset, enum IA2TextBoundaryType boundaryType, long* startOffset, \
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long* endOffset, BSTR* text) { \
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return Class::get_textBeforeOffset(offset, boundaryType, startOffset, \
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endOffset, text); \
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} \
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\
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virtual HRESULT STDMETHODCALLTYPE get_textAfterOffset( \
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long offset, enum IA2TextBoundaryType boundaryType, long* startOffset, \
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long* endOffset, BSTR* text) { \
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return Class::get_textAfterOffset(offset, boundaryType, startOffset, \
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endOffset, text); \
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} \
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\
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virtual HRESULT STDMETHODCALLTYPE get_textAtOffset( \
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long offset, enum IA2TextBoundaryType boundaryType, long* startOffset, \
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long* endOffset, BSTR* text) { \
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return Class::get_textAtOffset(offset, boundaryType, startOffset, \
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endOffset, text); \
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} \
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\
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virtual HRESULT STDMETHODCALLTYPE removeSelection(long selectionIndex) { \
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return Class::removeSelection(selectionIndex); \
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} \
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\
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virtual HRESULT STDMETHODCALLTYPE setCaretOffset(long offset) { \
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return Class::setCaretOffset(offset); \
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} \
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\
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virtual HRESULT STDMETHODCALLTYPE setSelection( \
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long selectionIndex, long startOffset, long endOffset) { \
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return Class::setSelection(selectionIndex, startOffset, endOffset); \
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} \
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\
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virtual HRESULT STDMETHODCALLTYPE get_nCharacters(long* nCharacters) { \
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return Class::get_nCharacters(nCharacters); \
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} \
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\
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virtual HRESULT STDMETHODCALLTYPE scrollSubstringTo( \
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long startIndex, long endIndex, enum IA2ScrollType scrollType) { \
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return Class::scrollSubstringTo(startIndex, endIndex, scrollType); \
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} \
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\
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virtual HRESULT STDMETHODCALLTYPE scrollSubstringToPoint( \
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long startIndex, long endIndex, enum IA2CoordinateType coordinateType, \
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long x, long y) { \
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return Class::scrollSubstringToPoint(startIndex, endIndex, coordinateType, \
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x, y); \
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} \
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\
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virtual HRESULT STDMETHODCALLTYPE get_newText(IA2TextSegment* newText) { \
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return Class::get_newText(newText); \
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} \
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\
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virtual HRESULT STDMETHODCALLTYPE get_oldText(IA2TextSegment* oldText) { \
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return Class::get_oldText(oldText); \
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}
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#endif
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