513 lines
17 KiB
C++
513 lines
17 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* vim:expandtab:shiftwidth=4:tabstop=4:
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*/
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: NPL 1.1/GPL 2.0/LGPL 2.1
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*
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*
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* The contents of this file are subject to the Mozilla Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is Sun Microsystems, Inc.
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* Portions created by Sun Microsystems are Copyright (C) 2002 Sun
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* Microsystems, Inc. All Rights Reserved.
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*
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* Original Author: Bolian Yin (bolian.yin@sun.com)
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the NPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the NPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsMaiInterfaceText.h"
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#include "nsString.h"
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G_BEGIN_DECLS
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static void interfaceInitCB(AtkTextIface *aIface);
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/* text interface callbacks */
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static gchar *getTextCB(AtkText *aText,
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gint aStartOffset, gint aEndOffset);
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static gchar *getTextAfterOffsetCB(AtkText *aText, gint aOffset,
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AtkTextBoundary aBoundaryType,
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gint *aStartOffset, gint *aEndOffset);
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static gchar *getTextAtOffsetCB(AtkText *aText, gint aOffset,
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AtkTextBoundary aBoundaryType,
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gint *aStartOffset, gint *aEndOffset);
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static gunichar getCharacterAtOffsetCB(AtkText *aText, gint aOffset);
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static gchar *getTextBeforeOffsetCB(AtkText *aText, gint aOffset,
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AtkTextBoundary aBoundaryType,
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gint *aStartOffset, gint *aEndOffset);
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static gint getCaretOffsetCB(AtkText *aText);
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static AtkAttributeSet *getRunAttributesCB(AtkText *aText, gint aOffset,
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gint *aStartOffset,
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gint *aEndOffset);
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static AtkAttributeSet* getDefaultAttributesCB(AtkText *aText);
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static void getCharacterExtentsCB(AtkText *aText, gint aOffset,
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gint *aX, gint *aY,
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gint *aWidth, gint *aHeight,
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AtkCoordType aCoords);
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static gint getCharacterCountCB(AtkText *aText);
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static gint getOffsetAtPointCB(AtkText *aText,
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gint aX, gint aY,
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AtkCoordType aCoords);
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static gint getSelectionCountCB(AtkText *aText);
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static gchar *getSelectionCB(AtkText *aText, gint aSelectionNum,
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gint *aStartOffset, gint *aEndOffset);
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// set methods
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static gboolean addSelectionCB(AtkText *aText,
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gint aStartOffset,
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gint aEndOffset);
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static gboolean removeSelectionCB(AtkText *aText,
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gint aSelectionNum);
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static gboolean setSelectionCB(AtkText *aText, gint aSelectionNum,
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gint aStartOffset, gint aEndOffset);
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static gboolean setCaretOffsetCB(AtkText *aText, gint aOffset);
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/*************************************************
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// signal handlers
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//
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static void TextChangedCB(AtkText *aText, gint aPosition, gint aLength);
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static void TextCaretMovedCB(AtkText *aText, gint aLocation);
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static void TextSelectionChangedCB(AtkText *aText);
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*/
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G_END_DECLS
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MaiInterfaceText::MaiInterfaceText(nsAccessibleWrap *aAccWrap):
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MaiInterface(aAccWrap)
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{
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}
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MaiInterfaceText::~MaiInterfaceText()
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{
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}
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MaiInterfaceType
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MaiInterfaceText::GetType()
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{
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return MAI_INTERFACE_TEXT;
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}
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const GInterfaceInfo *
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MaiInterfaceText::GetInterfaceInfo()
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{
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static const GInterfaceInfo atk_if_text_info = {
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(GInterfaceInitFunc)interfaceInitCB,
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(GInterfaceFinalizeFunc) NULL,
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NULL
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};
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return &atk_if_text_info;
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}
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/* statics */
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void
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interfaceInitCB(AtkTextIface *aIface)
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{
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NS_ASSERTION(aIface, "Invalid aIface");
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if (!aIface)
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return;
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aIface->get_text = getTextCB;
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aIface->get_text_after_offset = getTextAfterOffsetCB;
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aIface->get_text_at_offset = getTextAtOffsetCB;
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aIface->get_character_at_offset = getCharacterAtOffsetCB;
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aIface->get_text_before_offset = getTextBeforeOffsetCB;
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aIface->get_caret_offset = getCaretOffsetCB;
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aIface->get_run_attributes = getRunAttributesCB;
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aIface->get_default_attributes = getDefaultAttributesCB;
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aIface->get_character_extents = getCharacterExtentsCB;
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aIface->get_character_count = getCharacterCountCB;
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aIface->get_offset_at_point = getOffsetAtPointCB;
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aIface->get_n_selections = getSelectionCountCB;
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aIface->get_selection = getSelectionCB;
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// set methods
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aIface->add_selection = addSelectionCB;
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aIface->remove_selection = removeSelectionCB;
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aIface->set_selection = setSelectionCB;
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aIface->set_caret_offset = setCaretOffsetCB;
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}
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void ConvertTexttoAsterisks(nsAccessibleWrap* accWrap, nsAString& aString)
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{
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// convert each char to "*" when it's "password text"
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PRUint32 accRole;
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accWrap->GetRole(&accRole);
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if (NS_STATIC_CAST(AtkRole, accRole) == ATK_ROLE_PASSWORD_TEXT) {
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for (PRUint32 i = 0; i < aString.Length(); i++)
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aString.Replace(i, 1, NS_LITERAL_STRING("*"));
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}
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}
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gchar *
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getTextCB(AtkText *aText, gint aStartOffset, gint aEndOffset)
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{
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nsAccessibleWrap *accWrap = GetAccessibleWrap(ATK_OBJECT(aText));
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NS_ENSURE_TRUE(accWrap, nsnull);
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nsCOMPtr<nsIAccessibleText> accText;
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accWrap->QueryInterface(NS_GET_IID(nsIAccessibleText),
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getter_AddRefs(accText));
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NS_ENSURE_TRUE(accText, nsnull);
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nsAutoString autoStr;
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nsresult rv = accText->GetText(aStartOffset, aEndOffset, autoStr);
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NS_ENSURE_SUCCESS(rv, nsnull);
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ConvertTexttoAsterisks(accWrap, autoStr);
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NS_ConvertUTF16toUTF8 cautoStr(autoStr);
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//copy and return, libspi will free it.
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return (cautoStr.get()) ? g_strdup(cautoStr.get()) : nsnull;
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}
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gchar *
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getTextAfterOffsetCB(AtkText *aText, gint aOffset,
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AtkTextBoundary aBoundaryType,
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gint *aStartOffset, gint *aEndOffset)
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{
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nsAccessibleWrap *accWrap = GetAccessibleWrap(ATK_OBJECT(aText));
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NS_ENSURE_TRUE(accWrap, nsnull);
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nsCOMPtr<nsIAccessibleText> accText;
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accWrap->QueryInterface(NS_GET_IID(nsIAccessibleText),
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getter_AddRefs(accText));
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NS_ENSURE_TRUE(accText, nsnull);
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nsAutoString autoStr;
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PRInt32 startOffset = 0, endOffset = 0;
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nsresult rv =
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accText->GetTextAfterOffset(aOffset, aBoundaryType,
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&startOffset, &endOffset, autoStr);
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*aStartOffset = startOffset;
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*aEndOffset = endOffset;
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NS_ENSURE_SUCCESS(rv, nsnull);
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ConvertTexttoAsterisks(accWrap, autoStr);
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NS_ConvertUTF16toUTF8 cautoStr(autoStr);
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return (cautoStr.get()) ? g_strdup(cautoStr.get()) : nsnull;
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}
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gchar *
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getTextAtOffsetCB(AtkText *aText, gint aOffset,
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AtkTextBoundary aBoundaryType,
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gint *aStartOffset, gint *aEndOffset)
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{
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nsAccessibleWrap *accWrap = GetAccessibleWrap(ATK_OBJECT(aText));
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NS_ENSURE_TRUE(accWrap, nsnull);
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nsCOMPtr<nsIAccessibleText> accText;
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accWrap->QueryInterface(NS_GET_IID(nsIAccessibleText),
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getter_AddRefs(accText));
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NS_ENSURE_TRUE(accText, nsnull);
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nsAutoString autoStr;
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PRInt32 startOffset = 0, endOffset = 0;
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nsresult rv =
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accText->GetTextAtOffset(aOffset, aBoundaryType,
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&startOffset, &endOffset, autoStr);
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*aStartOffset = startOffset;
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*aEndOffset = endOffset;
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NS_ENSURE_SUCCESS(rv, nsnull);
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ConvertTexttoAsterisks(accWrap, autoStr);
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NS_ConvertUTF16toUTF8 cautoStr(autoStr);
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return (cautoStr.get()) ? g_strdup(cautoStr.get()) : nsnull;
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}
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gunichar
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getCharacterAtOffsetCB(AtkText *aText, gint aOffset)
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{
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nsAccessibleWrap *accWrap = GetAccessibleWrap(ATK_OBJECT(aText));
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NS_ENSURE_TRUE(accWrap, 0);
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nsCOMPtr<nsIAccessibleText> accText;
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accWrap->QueryInterface(NS_GET_IID(nsIAccessibleText),
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getter_AddRefs(accText));
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NS_ENSURE_TRUE(accText, 0);
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/* PRUnichar is unsigned short in Mozilla */
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/* gnuichar is guint32 in glib */
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PRUnichar uniChar;
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nsresult rv =
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accText->GetCharacterAtOffset(aOffset, &uniChar);
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// convert char to "*" when it's "password text"
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PRUint32 accRole;
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accWrap->GetRole(&accRole);
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if (NS_STATIC_CAST(AtkRole, accRole) == ATK_ROLE_PASSWORD_TEXT) {
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uniChar = '*';
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}
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return (NS_FAILED(rv)) ? 0 : NS_STATIC_CAST(gunichar, uniChar);
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}
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gchar *
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getTextBeforeOffsetCB(AtkText *aText, gint aOffset,
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AtkTextBoundary aBoundaryType,
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gint *aStartOffset, gint *aEndOffset)
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{
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nsAccessibleWrap *accWrap = GetAccessibleWrap(ATK_OBJECT(aText));
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NS_ENSURE_TRUE(accWrap, nsnull);
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nsCOMPtr<nsIAccessibleText> accText;
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accWrap->QueryInterface(NS_GET_IID(nsIAccessibleText),
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getter_AddRefs(accText));
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NS_ENSURE_TRUE(accText, nsnull);
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nsAutoString autoStr;
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PRInt32 startOffset = 0, endOffset = 0;
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nsresult rv =
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accText->GetTextBeforeOffset(aOffset, aBoundaryType,
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&startOffset, &endOffset, autoStr);
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*aStartOffset = startOffset;
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*aEndOffset = endOffset;
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NS_ENSURE_SUCCESS(rv, nsnull);
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ConvertTexttoAsterisks(accWrap, autoStr);
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NS_ConvertUTF16toUTF8 cautoStr(autoStr);
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return (cautoStr.get()) ? g_strdup(cautoStr.get()) : nsnull;
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}
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gint
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getCaretOffsetCB(AtkText *aText)
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{
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nsAccessibleWrap *accWrap = GetAccessibleWrap(ATK_OBJECT(aText));
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NS_ENSURE_TRUE(accWrap, 0);
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nsCOMPtr<nsIAccessibleText> accText;
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accWrap->QueryInterface(NS_GET_IID(nsIAccessibleText),
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getter_AddRefs(accText));
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NS_ENSURE_TRUE(accText, 0);
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PRInt32 offset;
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nsresult rv = accText->GetCaretOffset(&offset);
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return (NS_FAILED(rv)) ? 0 : NS_STATIC_CAST(gint, offset);
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}
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AtkAttributeSet *
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getRunAttributesCB(AtkText *aText, gint aOffset,
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gint *aStartOffset,
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gint *aEndOffset)
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{
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nsAccessibleWrap *accWrap = GetAccessibleWrap(ATK_OBJECT(aText));
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NS_ENSURE_TRUE(accWrap, nsnull);
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nsCOMPtr<nsIAccessibleText> accText;
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accWrap->QueryInterface(NS_GET_IID(nsIAccessibleText),
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getter_AddRefs(accText));
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NS_ENSURE_TRUE(accText, nsnull);
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nsCOMPtr<nsISupports> attrSet;
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PRInt32 startOffset = 0, endOffset = 0;
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nsresult rv = accText->GetAttributeRange(aOffset,
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&startOffset, &endOffset,
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getter_AddRefs(attrSet));
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*aStartOffset = startOffset;
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*aEndOffset = endOffset;
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NS_ENSURE_SUCCESS(rv, nsnull);
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/* what to do with the nsISupports ? ??? */
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return nsnull;
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}
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AtkAttributeSet *
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getDefaultAttributesCB(AtkText *aText)
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{
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/* not supported ??? */
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return nsnull;
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}
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void
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getCharacterExtentsCB(AtkText *aText, gint aOffset,
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gint *aX, gint *aY,
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gint *aWidth, gint *aHeight,
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AtkCoordType aCoords)
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{
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nsAccessibleWrap *accWrap = GetAccessibleWrap(ATK_OBJECT(aText));
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if(!accWrap)
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return;
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nsCOMPtr<nsIAccessibleText> accText;
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accWrap->QueryInterface(NS_GET_IID(nsIAccessibleText),
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getter_AddRefs(accText));
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if (!accText)
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return;
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PRInt32 extY = 0, extX = 0;
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PRInt32 extWidth = 0, extHeight = 0;
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nsresult rv = accText->GetCharacterExtents(aOffset, &extX, &extY,
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&extWidth, &extHeight,
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aCoords);
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*aX = extX;
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*aY = extY;
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*aWidth = extWidth;
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*aHeight = extHeight;
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NS_WARN_IF_FALSE(NS_SUCCEEDED(rv),
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"MaiInterfaceText::GetCharacterExtents, failed\n");
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}
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gint
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getCharacterCountCB(AtkText *aText)
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{
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nsAccessibleWrap *accWrap = GetAccessibleWrap(ATK_OBJECT(aText));
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NS_ENSURE_TRUE(accWrap, 0);
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nsCOMPtr<nsIAccessibleText> accText;
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accWrap->QueryInterface(NS_GET_IID(nsIAccessibleText),
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getter_AddRefs(accText));
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NS_ENSURE_TRUE(accText, 0);
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PRInt32 count = 0;
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nsresult rv = accText->GetCharacterCount(&count);
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return (NS_FAILED(rv)) ? 0 : NS_STATIC_CAST(gint, count);
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}
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gint
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getOffsetAtPointCB(AtkText *aText,
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gint aX, gint aY,
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AtkCoordType aCoords)
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{
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nsAccessibleWrap *accWrap = GetAccessibleWrap(ATK_OBJECT(aText));
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NS_ENSURE_TRUE(accWrap, 0);
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nsCOMPtr<nsIAccessibleText> accText;
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accWrap->QueryInterface(NS_GET_IID(nsIAccessibleText),
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getter_AddRefs(accText));
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NS_ENSURE_TRUE(accText, 0);
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PRInt32 offset = 0;
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nsresult rv = accText->GetOffsetAtPoint(aX, aY, aCoords, &offset);
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return (NS_FAILED(rv)) ? 0 : NS_STATIC_CAST(gint, offset);
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}
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gint
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getSelectionCountCB(AtkText *aText)
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{
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/* no implemetation in nsIAccessibleText??? */
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//new attribuate will be added in nsIAccessibleText.idl
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//readonly attribute long selectionCount;
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return 0;
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}
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gchar *
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getSelectionCB(AtkText *aText, gint aSelectionNum,
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gint *aStartOffset, gint *aEndOffset)
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{
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nsAccessibleWrap *accWrap = GetAccessibleWrap(ATK_OBJECT(aText));
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NS_ENSURE_TRUE(accWrap, nsnull);
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nsCOMPtr<nsIAccessibleText> accText;
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accWrap->QueryInterface(NS_GET_IID(nsIAccessibleText),
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getter_AddRefs(accText));
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NS_ENSURE_TRUE(accText, nsnull);
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PRInt32 startOffset = 0, endOffset = 0;
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nsresult rv = accText->GetSelectionBounds(aSelectionNum,
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&startOffset, &endOffset);
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*aStartOffset = startOffset;
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*aEndOffset = endOffset;
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NS_ENSURE_SUCCESS(rv, nsnull);
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return getTextCB(aText, *aStartOffset, *aEndOffset);
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}
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// set methods
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gboolean
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addSelectionCB(AtkText *aText,
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gint aStartOffset,
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gint aEndOffset)
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{
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nsAccessibleWrap *accWrap = GetAccessibleWrap(ATK_OBJECT(aText));
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NS_ENSURE_TRUE(accWrap, FALSE);
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nsCOMPtr<nsIAccessibleText> accText;
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accWrap->QueryInterface(NS_GET_IID(nsIAccessibleText),
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getter_AddRefs(accText));
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NS_ENSURE_TRUE(accText, FALSE);
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nsresult rv = accText->AddSelection(aStartOffset, aEndOffset);
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return NS_SUCCEEDED(rv) ? TRUE : FALSE;
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}
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gboolean
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removeSelectionCB(AtkText *aText,
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gint aSelectionNum)
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{
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nsAccessibleWrap *accWrap = GetAccessibleWrap(ATK_OBJECT(aText));
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NS_ENSURE_TRUE(accWrap, FALSE);
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nsCOMPtr<nsIAccessibleText> accText;
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accWrap->QueryInterface(NS_GET_IID(nsIAccessibleText),
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getter_AddRefs(accText));
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NS_ENSURE_TRUE(accText, FALSE);
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nsresult rv = accText->RemoveSelection(aSelectionNum);
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return NS_SUCCEEDED(rv) ? TRUE : FALSE;
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}
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gboolean
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setSelectionCB(AtkText *aText, gint aSelectionNum,
|
|
gint aStartOffset, gint aEndOffset)
|
|
{
|
|
nsAccessibleWrap *accWrap = GetAccessibleWrap(ATK_OBJECT(aText));
|
|
NS_ENSURE_TRUE(accWrap, FALSE);
|
|
|
|
nsCOMPtr<nsIAccessibleText> accText;
|
|
accWrap->QueryInterface(NS_GET_IID(nsIAccessibleText),
|
|
getter_AddRefs(accText));
|
|
NS_ENSURE_TRUE(accText, FALSE);
|
|
|
|
nsresult rv = accText->SetSelectionBounds(aSelectionNum,
|
|
aStartOffset, aEndOffset);
|
|
return NS_SUCCEEDED(rv) ? TRUE : FALSE;
|
|
}
|
|
|
|
gboolean
|
|
setCaretOffsetCB(AtkText *aText, gint aOffset)
|
|
{
|
|
nsAccessibleWrap *accWrap = GetAccessibleWrap(ATK_OBJECT(aText));
|
|
NS_ENSURE_TRUE(accWrap, FALSE);
|
|
|
|
nsCOMPtr<nsIAccessibleText> accText;
|
|
accWrap->QueryInterface(NS_GET_IID(nsIAccessibleText),
|
|
getter_AddRefs(accText));
|
|
NS_ENSURE_TRUE(accText, FALSE);
|
|
|
|
nsresult rv = accText->SetCaretOffset(aOffset);
|
|
return NS_SUCCEEDED(rv) ? TRUE : FALSE;
|
|
}
|