forked from mirrors/gecko-dev
fff810fb26
Most importantly, this means OffsetAtPoint is now supported for cached RemoteAccessible on Windows. I also included a drive-by fix to make ATK use the unified CharacterCount method instead of the old unnecessary conditional local/remote paths. Differential Revision: https://phabricator.services.mozilla.com/D154628
619 lines
18 KiB
C++
619 lines
18 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim: set ts=2 et sw=2 tw=80: */
|
|
/* 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/. */
|
|
|
|
#include "InterfaceInitFuncs.h"
|
|
#include "mozilla/a11y/PDocAccessible.h"
|
|
#include "mozilla/StaticPrefs_accessibility.h"
|
|
#include "LocalAccessible-inl.h"
|
|
#include "HyperTextAccessible-inl.h"
|
|
#include "nsMai.h"
|
|
#include "RemoteAccessible.h"
|
|
#include "AccAttributes.h"
|
|
|
|
#include "nsIAccessibleTypes.h"
|
|
#include "nsISimpleEnumerator.h"
|
|
#include "nsUTF8Utils.h"
|
|
|
|
#include "mozilla/Likely.h"
|
|
|
|
#include "DOMtoATK.h"
|
|
|
|
using namespace mozilla;
|
|
using namespace mozilla::a11y;
|
|
|
|
static const char* sAtkTextAttrNames[ATK_TEXT_ATTR_LAST_DEFINED];
|
|
|
|
void ConvertTextAttributeToAtkAttribute(const nsACString& aName,
|
|
const nsAString& aValue,
|
|
AtkAttributeSet** aAttributeSet) {
|
|
// Handle attributes where atk has its own name.
|
|
const char* atkName = nullptr;
|
|
nsAutoString atkValue;
|
|
if (aName.EqualsLiteral("color")) {
|
|
// The format of the atk attribute is r,g,b and the gecko one is
|
|
// rgb(r, g, b).
|
|
atkValue = Substring(aValue, 4, aValue.Length() - 5);
|
|
atkValue.StripWhitespace();
|
|
atkName = sAtkTextAttrNames[ATK_TEXT_ATTR_FG_COLOR];
|
|
} else if (aName.EqualsLiteral("background-color")) {
|
|
// The format of the atk attribute is r,g,b and the gecko one is
|
|
// rgb(r, g, b).
|
|
atkValue = Substring(aValue, 4, aValue.Length() - 5);
|
|
atkValue.StripWhitespace();
|
|
atkName = sAtkTextAttrNames[ATK_TEXT_ATTR_BG_COLOR];
|
|
} else if (aName.EqualsLiteral("font-family")) {
|
|
atkValue = aValue;
|
|
atkName = sAtkTextAttrNames[ATK_TEXT_ATTR_FAMILY_NAME];
|
|
} else if (aName.EqualsLiteral("font-size")) {
|
|
// ATK wants the number of pixels without px at the end.
|
|
atkValue = StringHead(aValue, aValue.Length() - 2);
|
|
atkName = sAtkTextAttrNames[ATK_TEXT_ATTR_SIZE];
|
|
} else if (aName.EqualsLiteral("font-weight")) {
|
|
atkValue = aValue;
|
|
atkName = sAtkTextAttrNames[ATK_TEXT_ATTR_WEIGHT];
|
|
} else if (aName.EqualsLiteral("invalid")) {
|
|
atkValue = aValue;
|
|
atkName = sAtkTextAttrNames[ATK_TEXT_ATTR_INVALID];
|
|
}
|
|
|
|
if (atkName) {
|
|
AtkAttribute* objAttr =
|
|
static_cast<AtkAttribute*>(g_malloc(sizeof(AtkAttribute)));
|
|
objAttr->name = g_strdup(atkName);
|
|
objAttr->value = g_strdup(NS_ConvertUTF16toUTF8(atkValue).get());
|
|
*aAttributeSet = g_slist_prepend(*aAttributeSet, objAttr);
|
|
}
|
|
}
|
|
|
|
static AtkAttributeSet* ConvertToAtkTextAttributeSet(
|
|
AccAttributes* aAttributes) {
|
|
if (!aAttributes) {
|
|
// This can happen if an Accessible dies in the content process, but the
|
|
// parent hasn't been udpated yet.
|
|
return nullptr;
|
|
}
|
|
|
|
AtkAttributeSet* objAttributeSet = nullptr;
|
|
|
|
for (auto iter : *aAttributes) {
|
|
nsAutoString name;
|
|
iter.NameAsString(name);
|
|
|
|
nsAutoString value;
|
|
iter.ValueAsString(value);
|
|
|
|
AtkAttribute* objAttr = (AtkAttribute*)g_malloc(sizeof(AtkAttribute));
|
|
objAttr->name = g_strdup(NS_ConvertUTF16toUTF8(name).get());
|
|
objAttr->value = g_strdup(NS_ConvertUTF16toUTF8(value).get());
|
|
objAttributeSet = g_slist_prepend(objAttributeSet, objAttr);
|
|
}
|
|
|
|
// libatk-adaptor will free it
|
|
return objAttributeSet;
|
|
}
|
|
|
|
static void ConvertTexttoAsterisks(Accessible* aAcc, nsAString& aString) {
|
|
// convert each char to "*" when it's "password text"
|
|
if (aAcc->IsPassword()) {
|
|
DOMtoATK::ConvertTexttoAsterisks(aString);
|
|
}
|
|
}
|
|
|
|
extern "C" {
|
|
|
|
static gchar* getTextCB(AtkText* aText, gint aStartOffset, gint aEndOffset) {
|
|
AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aText));
|
|
nsAutoString autoStr;
|
|
if (accWrap) {
|
|
HyperTextAccessible* text = accWrap->AsHyperText();
|
|
if (!text || !text->IsTextRole() || text->IsDefunct()) return nullptr;
|
|
|
|
return DOMtoATK::NewATKString(
|
|
text, aStartOffset, aEndOffset,
|
|
accWrap->IsPassword()
|
|
? DOMtoATK::AtkStringConvertFlags::ConvertTextToAsterisks
|
|
: DOMtoATK::AtkStringConvertFlags::None);
|
|
|
|
} else if (RemoteAccessible* proxy = GetProxy(ATK_OBJECT(aText))) {
|
|
return DOMtoATK::NewATKString(proxy, aStartOffset, aEndOffset,
|
|
DOMtoATK::AtkStringConvertFlags::None);
|
|
}
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
static gint getCharacterCountCB(AtkText* aText);
|
|
|
|
// Note: this does not support magic offsets, which is fine for its callers
|
|
// which do not implement any.
|
|
static gchar* getCharTextAtOffset(AtkText* aText, gint aOffset,
|
|
gint* aStartOffset, gint* aEndOffset) {
|
|
gint end = aOffset + 1;
|
|
gint count = getCharacterCountCB(aText);
|
|
|
|
if (aOffset > count) {
|
|
aOffset = count;
|
|
}
|
|
if (end > count) {
|
|
end = count;
|
|
}
|
|
if (aOffset < 0) {
|
|
aOffset = 0;
|
|
}
|
|
if (end < 0) {
|
|
end = 0;
|
|
}
|
|
*aStartOffset = aOffset;
|
|
*aEndOffset = end;
|
|
|
|
return getTextCB(aText, aOffset, end);
|
|
}
|
|
|
|
static gchar* getTextAfterOffsetCB(AtkText* aText, gint aOffset,
|
|
AtkTextBoundary aBoundaryType,
|
|
gint* aStartOffset, gint* aEndOffset) {
|
|
if (aBoundaryType == ATK_TEXT_BOUNDARY_CHAR) {
|
|
return getCharTextAtOffset(aText, aOffset + 1, aStartOffset, aEndOffset);
|
|
}
|
|
|
|
Accessible* acc = GetInternalObj(ATK_OBJECT(aText));
|
|
if (!acc) {
|
|
return nullptr;
|
|
}
|
|
|
|
HyperTextAccessibleBase* text = acc->AsHyperTextBase();
|
|
if (!text || !acc->IsTextRole()) {
|
|
return nullptr;
|
|
}
|
|
|
|
nsAutoString autoStr;
|
|
int32_t startOffset = 0, endOffset = 0;
|
|
text->TextAfterOffset(aOffset, aBoundaryType, &startOffset, &endOffset,
|
|
autoStr);
|
|
if (acc->IsLocal()) {
|
|
// XXX Is this needed any more? Masking of passwords is handled in
|
|
// cross-platform code.
|
|
ConvertTexttoAsterisks(acc, autoStr);
|
|
}
|
|
|
|
*aStartOffset = startOffset;
|
|
*aEndOffset = endOffset;
|
|
|
|
// libspi will free it.
|
|
return DOMtoATK::Convert(autoStr);
|
|
}
|
|
|
|
static gchar* getTextAtOffsetCB(AtkText* aText, gint aOffset,
|
|
AtkTextBoundary aBoundaryType,
|
|
gint* aStartOffset, gint* aEndOffset) {
|
|
if (aBoundaryType == ATK_TEXT_BOUNDARY_CHAR) {
|
|
return getCharTextAtOffset(aText, aOffset, aStartOffset, aEndOffset);
|
|
}
|
|
|
|
Accessible* acc = GetInternalObj(ATK_OBJECT(aText));
|
|
if (!acc) {
|
|
return nullptr;
|
|
}
|
|
|
|
HyperTextAccessibleBase* text = acc->AsHyperTextBase();
|
|
if (!text || !acc->IsTextRole()) {
|
|
return nullptr;
|
|
}
|
|
|
|
nsAutoString autoStr;
|
|
int32_t startOffset = 0, endOffset = 0;
|
|
text->TextAtOffset(aOffset, aBoundaryType, &startOffset, &endOffset, autoStr);
|
|
if (acc->IsLocal()) {
|
|
// XXX Is this needed any more? Masking of passwords is handled in
|
|
// cross-platform code.
|
|
ConvertTexttoAsterisks(acc, autoStr);
|
|
}
|
|
|
|
*aStartOffset = startOffset;
|
|
*aEndOffset = endOffset;
|
|
|
|
// libspi will free it.
|
|
return DOMtoATK::Convert(autoStr);
|
|
}
|
|
|
|
static gunichar getCharacterAtOffsetCB(AtkText* aText, gint aOffset) {
|
|
AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aText));
|
|
if (accWrap) {
|
|
HyperTextAccessible* text = accWrap->AsHyperText();
|
|
if (!text || !text->IsTextRole()) {
|
|
return 0;
|
|
}
|
|
return DOMtoATK::ATKCharacter(text, aOffset);
|
|
}
|
|
|
|
if (RemoteAccessible* proxy = GetProxy(ATK_OBJECT(aText))) {
|
|
return DOMtoATK::ATKCharacter(proxy, aOffset);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static gchar* getTextBeforeOffsetCB(AtkText* aText, gint aOffset,
|
|
AtkTextBoundary aBoundaryType,
|
|
gint* aStartOffset, gint* aEndOffset) {
|
|
if (aBoundaryType == ATK_TEXT_BOUNDARY_CHAR) {
|
|
return getCharTextAtOffset(aText, aOffset - 1, aStartOffset, aEndOffset);
|
|
}
|
|
|
|
Accessible* acc = GetInternalObj(ATK_OBJECT(aText));
|
|
if (!acc) {
|
|
return nullptr;
|
|
}
|
|
|
|
HyperTextAccessibleBase* text = acc->AsHyperTextBase();
|
|
if (!text || !acc->IsTextRole()) {
|
|
return nullptr;
|
|
}
|
|
|
|
nsAutoString autoStr;
|
|
int32_t startOffset = 0, endOffset = 0;
|
|
text->TextBeforeOffset(aOffset, aBoundaryType, &startOffset, &endOffset,
|
|
autoStr);
|
|
if (acc->IsLocal()) {
|
|
// XXX Is this needed any more? Masking of passwords is handled in
|
|
// cross-platform code.
|
|
ConvertTexttoAsterisks(acc, autoStr);
|
|
}
|
|
|
|
*aStartOffset = startOffset;
|
|
*aEndOffset = endOffset;
|
|
|
|
// libspi will free it.
|
|
return DOMtoATK::Convert(autoStr);
|
|
}
|
|
|
|
static gint getCaretOffsetCB(AtkText* aText) {
|
|
Accessible* acc = GetInternalObj(ATK_OBJECT(aText));
|
|
if (!acc) {
|
|
return -1;
|
|
}
|
|
|
|
HyperTextAccessibleBase* text = acc->AsHyperTextBase();
|
|
if (!text || !acc->IsTextRole()) {
|
|
return -1;
|
|
}
|
|
|
|
return static_cast<gint>(text->CaretOffset());
|
|
}
|
|
|
|
static AtkAttributeSet* getRunAttributesCB(AtkText* aText, gint aOffset,
|
|
gint* aStartOffset,
|
|
gint* aEndOffset) {
|
|
*aStartOffset = -1;
|
|
*aEndOffset = -1;
|
|
int32_t startOffset = 0, endOffset = 0;
|
|
|
|
Accessible* acc = GetInternalObj(ATK_OBJECT(aText));
|
|
if (!acc) {
|
|
return nullptr;
|
|
}
|
|
|
|
HyperTextAccessibleBase* text = acc->AsHyperTextBase();
|
|
if (!text || !acc->IsTextRole()) {
|
|
return nullptr;
|
|
}
|
|
|
|
RefPtr<AccAttributes> attributes =
|
|
text->TextAttributes(false, aOffset, &startOffset, &endOffset);
|
|
|
|
*aStartOffset = startOffset;
|
|
*aEndOffset = endOffset;
|
|
|
|
return ConvertToAtkTextAttributeSet(attributes);
|
|
}
|
|
|
|
static AtkAttributeSet* getDefaultAttributesCB(AtkText* aText) {
|
|
Accessible* acc = GetInternalObj(ATK_OBJECT(aText));
|
|
if (!acc) {
|
|
return nullptr;
|
|
}
|
|
|
|
HyperTextAccessibleBase* text = acc->AsHyperTextBase();
|
|
if (!text || !acc->IsTextRole()) {
|
|
return nullptr;
|
|
}
|
|
|
|
RefPtr<AccAttributes> attributes = text->DefaultTextAttributes();
|
|
return ConvertToAtkTextAttributeSet(attributes);
|
|
}
|
|
|
|
static void getCharacterExtentsCB(AtkText* aText, gint aOffset, gint* aX,
|
|
gint* aY, gint* aWidth, gint* aHeight,
|
|
AtkCoordType aCoords) {
|
|
if (!aX || !aY || !aWidth || !aHeight) {
|
|
return;
|
|
}
|
|
*aX = *aY = *aWidth = *aHeight = -1;
|
|
|
|
uint32_t geckoCoordType;
|
|
if (aCoords == ATK_XY_SCREEN) {
|
|
geckoCoordType = nsIAccessibleCoordinateType::COORDTYPE_SCREEN_RELATIVE;
|
|
} else {
|
|
geckoCoordType = nsIAccessibleCoordinateType::COORDTYPE_WINDOW_RELATIVE;
|
|
}
|
|
|
|
Accessible* acc = GetInternalObj(ATK_OBJECT(aText));
|
|
if (!acc) {
|
|
return;
|
|
}
|
|
|
|
HyperTextAccessibleBase* text = acc->AsHyperTextBase();
|
|
if (!text || !acc->IsTextRole()) {
|
|
return;
|
|
}
|
|
|
|
LayoutDeviceIntRect rect = text->CharBounds(aOffset, geckoCoordType);
|
|
|
|
*aX = rect.x;
|
|
*aY = rect.y;
|
|
*aWidth = rect.width;
|
|
*aHeight = rect.height;
|
|
}
|
|
|
|
static void getRangeExtentsCB(AtkText* aText, gint aStartOffset,
|
|
gint aEndOffset, AtkCoordType aCoords,
|
|
AtkTextRectangle* aRect) {
|
|
if (!aRect) {
|
|
return;
|
|
}
|
|
aRect->x = aRect->y = aRect->width = aRect->height = -1;
|
|
|
|
uint32_t geckoCoordType;
|
|
if (aCoords == ATK_XY_SCREEN) {
|
|
geckoCoordType = nsIAccessibleCoordinateType::COORDTYPE_SCREEN_RELATIVE;
|
|
} else {
|
|
geckoCoordType = nsIAccessibleCoordinateType::COORDTYPE_WINDOW_RELATIVE;
|
|
}
|
|
|
|
Accessible* acc = GetInternalObj(ATK_OBJECT(aText));
|
|
if (!acc) {
|
|
return;
|
|
}
|
|
|
|
HyperTextAccessibleBase* text = acc->AsHyperTextBase();
|
|
if (!text || !acc->IsTextRole()) {
|
|
return;
|
|
}
|
|
|
|
LayoutDeviceIntRect rect =
|
|
text->TextBounds(aStartOffset, aEndOffset, geckoCoordType);
|
|
|
|
aRect->x = rect.x;
|
|
aRect->y = rect.y;
|
|
aRect->width = rect.width;
|
|
aRect->height = rect.height;
|
|
}
|
|
|
|
static gint getCharacterCountCB(AtkText* aText) {
|
|
if (Accessible* acc = GetInternalObj(ATK_OBJECT(aText))) {
|
|
if (HyperTextAccessibleBase* text = acc->AsHyperTextBase()) {
|
|
return static_cast<gint>(text->CharacterCount());
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static gint getOffsetAtPointCB(AtkText* aText, gint aX, gint aY,
|
|
AtkCoordType aCoords) {
|
|
Accessible* acc = GetInternalObj(ATK_OBJECT(aText));
|
|
if (!acc) {
|
|
return -1;
|
|
}
|
|
HyperTextAccessibleBase* text = acc->AsHyperTextBase();
|
|
if (!text || !acc->IsTextRole()) {
|
|
return -1;
|
|
}
|
|
return static_cast<gint>(text->OffsetAtPoint(
|
|
aX, aY,
|
|
(aCoords == ATK_XY_SCREEN
|
|
? nsIAccessibleCoordinateType::COORDTYPE_SCREEN_RELATIVE
|
|
: nsIAccessibleCoordinateType::COORDTYPE_WINDOW_RELATIVE)));
|
|
}
|
|
|
|
static gint getTextSelectionCountCB(AtkText* aText) {
|
|
Accessible* acc = GetInternalObj(ATK_OBJECT(aText));
|
|
if (!acc) {
|
|
return 0;
|
|
}
|
|
|
|
HyperTextAccessibleBase* text = acc->AsHyperTextBase();
|
|
if (!text || !acc->IsTextRole()) {
|
|
return 0;
|
|
}
|
|
|
|
return text->SelectionCount();
|
|
}
|
|
|
|
static gchar* getTextSelectionCB(AtkText* aText, gint aSelectionNum,
|
|
gint* aStartOffset, gint* aEndOffset) {
|
|
Accessible* acc = GetInternalObj(ATK_OBJECT(aText));
|
|
if (!acc) {
|
|
return nullptr;
|
|
}
|
|
|
|
int32_t startOffset = 0, endOffset = 0;
|
|
if (acc->IsRemote() &&
|
|
!StaticPrefs::accessibility_cache_enabled_AtStartup()) {
|
|
RemoteAccessible* remote = acc->AsRemote();
|
|
nsString data;
|
|
remote->SelectionBoundsAt(aSelectionNum, data, &startOffset, &endOffset);
|
|
*aStartOffset = startOffset;
|
|
*aEndOffset = endOffset;
|
|
|
|
NS_ConvertUTF16toUTF8 dataAsUTF8(data);
|
|
return (dataAsUTF8.get()) ? g_strdup(dataAsUTF8.get()) : nullptr;
|
|
}
|
|
|
|
HyperTextAccessibleBase* text = acc->AsHyperTextBase();
|
|
if (!text || !acc->IsTextRole()) {
|
|
return nullptr;
|
|
}
|
|
|
|
text->SelectionBoundsAt(aSelectionNum, &startOffset, &endOffset);
|
|
*aStartOffset = startOffset;
|
|
*aEndOffset = endOffset;
|
|
|
|
return getTextCB(aText, *aStartOffset, *aEndOffset);
|
|
}
|
|
|
|
// set methods
|
|
static gboolean addTextSelectionCB(AtkText* aText, gint aStartOffset,
|
|
gint aEndOffset) {
|
|
AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aText));
|
|
if (accWrap) {
|
|
HyperTextAccessible* text = accWrap->AsHyperText();
|
|
if (!text || !text->IsTextRole()) {
|
|
return FALSE;
|
|
}
|
|
|
|
return text->AddToSelection(aStartOffset, aEndOffset);
|
|
}
|
|
if (RemoteAccessible* proxy = GetProxy(ATK_OBJECT(aText))) {
|
|
return proxy->AddToSelection(aStartOffset, aEndOffset);
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static gboolean removeTextSelectionCB(AtkText* aText, gint aSelectionNum) {
|
|
AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aText));
|
|
if (accWrap) {
|
|
HyperTextAccessible* text = accWrap->AsHyperText();
|
|
if (!text || !text->IsTextRole()) {
|
|
return FALSE;
|
|
}
|
|
|
|
return text->RemoveFromSelection(aSelectionNum);
|
|
}
|
|
if (RemoteAccessible* proxy = GetProxy(ATK_OBJECT(aText))) {
|
|
return proxy->RemoveFromSelection(aSelectionNum);
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static gboolean setTextSelectionCB(AtkText* aText, gint aSelectionNum,
|
|
gint aStartOffset, gint aEndOffset) {
|
|
AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aText));
|
|
if (accWrap) {
|
|
HyperTextAccessible* text = accWrap->AsHyperText();
|
|
if (!text || !text->IsTextRole()) {
|
|
return FALSE;
|
|
}
|
|
|
|
return text->SetSelectionBoundsAt(aSelectionNum, aStartOffset, aEndOffset);
|
|
}
|
|
if (RemoteAccessible* proxy = GetProxy(ATK_OBJECT(aText))) {
|
|
return proxy->SetSelectionBoundsAt(aSelectionNum, aStartOffset, aEndOffset);
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static gboolean setCaretOffsetCB(AtkText* aText, gint aOffset) {
|
|
Accessible* acc = GetInternalObj(ATK_OBJECT(aText));
|
|
if (!acc) {
|
|
return FALSE;
|
|
}
|
|
|
|
HyperTextAccessibleBase* text = acc->AsHyperTextBase();
|
|
if (!text || !acc->IsTextRole()) {
|
|
return FALSE;
|
|
}
|
|
|
|
text->SetCaretOffset(aOffset);
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean scrollSubstringToCB(AtkText* aText, gint aStartOffset,
|
|
gint aEndOffset, AtkScrollType aType) {
|
|
AtkObject* atkObject = ATK_OBJECT(aText);
|
|
AccessibleWrap* accWrap = GetAccessibleWrap(atkObject);
|
|
if (accWrap) {
|
|
HyperTextAccessible* text = accWrap->AsHyperText();
|
|
if (!text || !text->IsTextRole() ||
|
|
!text->IsValidRange(aStartOffset, aEndOffset)) {
|
|
return FALSE;
|
|
}
|
|
text->ScrollSubstringTo(aStartOffset, aEndOffset, aType);
|
|
return TRUE;
|
|
}
|
|
|
|
RemoteAccessible* proxy = GetProxy(atkObject);
|
|
if (proxy) {
|
|
proxy->ScrollSubstringTo(aStartOffset, aEndOffset, aType);
|
|
return TRUE;
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static gboolean scrollSubstringToPointCB(AtkText* aText, gint aStartOffset,
|
|
gint aEndOffset, AtkCoordType aCoords,
|
|
gint aX, gint aY) {
|
|
AtkObject* atkObject = ATK_OBJECT(aText);
|
|
AccessibleWrap* accWrap = GetAccessibleWrap(atkObject);
|
|
if (accWrap) {
|
|
HyperTextAccessible* text = accWrap->AsHyperText();
|
|
if (!text || !text->IsTextRole() ||
|
|
!text->IsValidRange(aStartOffset, aEndOffset)) {
|
|
return FALSE;
|
|
}
|
|
text->ScrollSubstringToPoint(aStartOffset, aEndOffset, aCoords, aX, aY);
|
|
return TRUE;
|
|
}
|
|
|
|
RemoteAccessible* proxy = GetProxy(atkObject);
|
|
if (proxy) {
|
|
proxy->ScrollSubstringToPoint(aStartOffset, aEndOffset, aCoords, aX, aY);
|
|
return TRUE;
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
void textInterfaceInitCB(AtkTextIface* aIface) {
|
|
NS_ASSERTION(aIface, "Invalid aIface");
|
|
if (MOZ_UNLIKELY(!aIface)) return;
|
|
|
|
aIface->get_text = getTextCB;
|
|
aIface->get_text_after_offset = getTextAfterOffsetCB;
|
|
aIface->get_text_at_offset = getTextAtOffsetCB;
|
|
aIface->get_character_at_offset = getCharacterAtOffsetCB;
|
|
aIface->get_text_before_offset = getTextBeforeOffsetCB;
|
|
aIface->get_caret_offset = getCaretOffsetCB;
|
|
aIface->get_run_attributes = getRunAttributesCB;
|
|
aIface->get_default_attributes = getDefaultAttributesCB;
|
|
aIface->get_character_extents = getCharacterExtentsCB;
|
|
aIface->get_range_extents = getRangeExtentsCB;
|
|
aIface->get_character_count = getCharacterCountCB;
|
|
aIface->get_offset_at_point = getOffsetAtPointCB;
|
|
aIface->get_n_selections = getTextSelectionCountCB;
|
|
aIface->get_selection = getTextSelectionCB;
|
|
|
|
// set methods
|
|
aIface->add_selection = addTextSelectionCB;
|
|
aIface->remove_selection = removeTextSelectionCB;
|
|
aIface->set_selection = setTextSelectionCB;
|
|
aIface->set_caret_offset = setCaretOffsetCB;
|
|
|
|
if (IsAtkVersionAtLeast(2, 32)) {
|
|
aIface->scroll_substring_to = scrollSubstringToCB;
|
|
aIface->scroll_substring_to_point = scrollSubstringToPointCB;
|
|
}
|
|
|
|
// Cache the string values of the atk text attribute names.
|
|
for (uint32_t i = 0; i < ArrayLength(sAtkTextAttrNames); i++) {
|
|
sAtkTextAttrNames[i] =
|
|
atk_text_attribute_get_name(static_cast<AtkTextAttribute>(i));
|
|
}
|
|
}
|