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Diffstat (limited to '')
| -rw-r--r-- | accessible/windows/ia2/ia2AccessibleText.h | 255 |
1 files changed, 255 insertions, 0 deletions
diff --git a/accessible/windows/ia2/ia2AccessibleText.h b/accessible/windows/ia2/ia2AccessibleText.h new file mode 100644 index 0000000000..8b9bab04b3 --- /dev/null +++ b/accessible/windows/ia2/ia2AccessibleText.h @@ -0,0 +1,255 @@ +/* -*- 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 |