示例#1
0
STDMETHODIMP
ia2Accessible::get_relations(long aMaxRelations,
                             IAccessibleRelation** aRelation,
                             long *aNRelations)
{
  if (!aRelation || !aNRelations || aMaxRelations <= 0)
    return E_INVALIDARG;
  *aNRelations = 0;

  AccessibleWrap* acc = static_cast<AccessibleWrap*>(this);
  if (acc->IsDefunct())
    return CO_E_OBJNOTCONNECTED;

  MOZ_ASSERT(!acc->IsProxy());

  for (uint32_t idx = 0; idx < ArrayLength(sRelationTypePairs) &&
       *aNRelations < aMaxRelations; idx++) {
    if (sRelationTypePairs[idx].second == IA2_RELATION_NULL)
      continue;

    RelationType relationType = sRelationTypePairs[idx].first;
    Relation rel = acc->RelationByType(relationType);
    RefPtr<ia2AccessibleRelation> ia2Rel =
      new ia2AccessibleRelation(relationType, &rel);
    if (ia2Rel->HasTargets()) {
      ia2Rel.forget(aRelation + (*aNRelations));
      (*aNRelations)++;
    }
  }
  return S_OK;
}
示例#2
0
STDMETHODIMP
ia2Accessible::get_relation(long aRelationIndex,
                            IAccessibleRelation** aRelation)
{
  if (!aRelation || aRelationIndex < 0)
    return E_INVALIDARG;
  *aRelation = nullptr;

  AccessibleWrap* acc = static_cast<AccessibleWrap*>(this);
  if (acc->IsDefunct())
    return CO_E_OBJNOTCONNECTED;

  MOZ_ASSERT(!acc->IsProxy());

  long relIdx = 0;
  for (uint32_t idx = 0; idx < ArrayLength(sRelationTypePairs); idx++) {
    if (sRelationTypePairs[idx].second == IA2_RELATION_NULL)
      continue;

    RelationType relationType = sRelationTypePairs[idx].first;
    Relation rel = acc->RelationByType(relationType);
    RefPtr<ia2AccessibleRelation> ia2Relation =
      new ia2AccessibleRelation(relationType, &rel);
    if (ia2Relation->HasTargets()) {
      if (relIdx == aRelationIndex) {
        ia2Relation.forget(aRelation);
        return S_OK;
      }

      relIdx++;
    }
  }

  return E_INVALIDARG;
}
示例#3
0
STDMETHODIMP
ia2Accessible::get_attributes(BSTR* aAttributes) {
  if (!aAttributes) return E_INVALIDARG;
  *aAttributes = nullptr;

  AccessibleWrap* acc = static_cast<AccessibleWrap*>(this);
  if (acc->IsDefunct()) return CO_E_OBJNOTCONNECTED;

  // The format is name:value;name:value; with \ for escaping these
  // characters ":;=,\".
  if (!acc->IsProxy()) {
    nsCOMPtr<nsIPersistentProperties> attributes = acc->Attributes();
    return ConvertToIA2Attributes(attributes, aAttributes);
  }

  MOZ_ASSERT(!acc->IsProxy());
  return E_UNEXPECTED;
}
示例#4
0
STDMETHODIMP
ia2AccessibleValue::setCurrentValue(VARIANT aValue) {
  if (aValue.vt != VT_R8) return E_INVALIDARG;

  AccessibleWrap* valueAcc = static_cast<AccessibleWrap*>(this);
  MOZ_ASSERT(!valueAcc->IsProxy());

  if (valueAcc->IsDefunct()) return CO_E_OBJNOTCONNECTED;

  return valueAcc->SetCurValue(aValue.dblVal) ? S_OK : E_FAIL;
}
示例#5
0
// XXX Use MOZ_CAN_RUN_SCRIPT_BOUNDARY for now due to bug 1543294.
MOZ_CAN_RUN_SCRIPT_BOUNDARY STDMETHODIMP
ia2Accessible::scrollTo(enum IA2ScrollType aScrollType) {
  AccessibleWrap* acc = static_cast<AccessibleWrap*>(this);
  if (acc->IsDefunct()) return CO_E_OBJNOTCONNECTED;

  MOZ_ASSERT(!acc->IsProxy());
  RefPtr<PresShell> presShell = acc->Document()->PresShellPtr();
  nsCOMPtr<nsIContent> content = acc->GetContent();
  nsCoreUtils::ScrollTo(presShell, content, aScrollType);

  return S_OK;
}
示例#6
0
STDMETHODIMP
ia2Accessible::scrollTo(enum IA2ScrollType aScrollType)
{
  AccessibleWrap* acc = static_cast<AccessibleWrap*>(this);
  if (acc->IsDefunct())
    return CO_E_OBJNOTCONNECTED;

  MOZ_ASSERT(!acc->IsProxy());
  nsCoreUtils::ScrollTo(acc->Document()->PresShell(), acc->GetContent(),
                        aScrollType);

  return S_OK;
}
示例#7
0
STDMETHODIMP
ia2Accessible::role(long* aRole)
{
  if (!aRole)
    return E_INVALIDARG;
  *aRole = 0;

  AccessibleWrap* acc = static_cast<AccessibleWrap*>(this);
  if (acc->IsDefunct())
    return CO_E_OBJNOTCONNECTED;

#define ROLE(_geckoRole, stringRole, atkRole, macRole, \
             msaaRole, ia2Role, androidClass, nameRule) \
  case roles::_geckoRole: \
    *aRole = ia2Role; \
    break;

  a11y::role geckoRole;
  MOZ_ASSERT(!acc->IsProxy());
  geckoRole = acc->Role();
  switch (geckoRole) {
#include "RoleMap.h"
    default:
      MOZ_CRASH("Unknown role.");
  }

#undef ROLE

  // Special case, if there is a ROLE_ROW inside of a ROLE_TREE_TABLE, then call
  // the IA2 role a ROLE_OUTLINEITEM.
  MOZ_ASSERT(!acc->IsProxy());
  if (geckoRole == roles::ROW) {
    Accessible* xpParent = acc->Parent();
    if (xpParent && xpParent->Role() == roles::TREE_TABLE)
      *aRole = ROLE_SYSTEM_OUTLINEITEM;
  }

  return S_OK;
}
示例#8
0
STDMETHODIMP
ia2Accessible::get_indexInParent(long* aIndexInParent) {
  if (!aIndexInParent) return E_INVALIDARG;
  *aIndexInParent = -1;

  AccessibleWrap* acc = static_cast<AccessibleWrap*>(this);
  if (acc->IsDefunct()) return CO_E_OBJNOTCONNECTED;

  MOZ_ASSERT(!acc->IsProxy());
  *aIndexInParent = acc->IndexInParent();

  if (*aIndexInParent == -1) return S_FALSE;

  return S_OK;
}
示例#9
0
STDMETHODIMP
ia2Accessible::scrollToPoint(enum IA2CoordinateType aCoordType, long aX,
                             long aY) {
  AccessibleWrap* acc = static_cast<AccessibleWrap*>(this);
  if (acc->IsDefunct()) return CO_E_OBJNOTCONNECTED;

  uint32_t geckoCoordType =
      (aCoordType == IA2_COORDTYPE_SCREEN_RELATIVE)
          ? nsIAccessibleCoordinateType::COORDTYPE_SCREEN_RELATIVE
          : nsIAccessibleCoordinateType::COORDTYPE_PARENT_RELATIVE;

  MOZ_ASSERT(!acc->IsProxy());
  acc->ScrollToPoint(geckoCoordType, aX, aY);

  return S_OK;
}
示例#10
0
STDMETHODIMP
ia2Accessible::get_relationTargetsOfType(BSTR aType,
                                         long aMaxTargets,
                                         IUnknown*** aTargets,
                                         long* aNTargets)
{
  if (!aTargets || !aNTargets || aMaxTargets < 0)
    return E_INVALIDARG;
  *aNTargets = 0;

  Maybe<RelationType> relationType;
  for (uint32_t idx = 0; idx < ArrayLength(sRelationTypePairs); idx++) {
    if (wcscmp(aType, sRelationTypePairs[idx].second) == 0) {
      relationType.emplace(sRelationTypePairs[idx].first);
      break;
    }
  }
  if (!relationType)
    return E_INVALIDARG;

  AccessibleWrap* acc = static_cast<AccessibleWrap*>(this);
  if (acc->IsDefunct())
    return CO_E_OBJNOTCONNECTED;

  nsTArray<Accessible*> targets;
  MOZ_ASSERT(!acc->IsProxy());
  Relation rel = acc->RelationByType(*relationType);
  Accessible* target = nullptr;
  while ((target = rel.Next()) &&
         static_cast<long>(targets.Length()) <= aMaxTargets) {
    targets.AppendElement(target);
  }

  *aNTargets = targets.Length();
  *aTargets = static_cast<IUnknown**>(
    ::CoTaskMemAlloc(sizeof(IUnknown*) * *aNTargets));
  if (!*aTargets)
    return E_OUTOFMEMORY;

  for (int32_t i = 0; i < *aNTargets; i++) {
    AccessibleWrap* target= static_cast<AccessibleWrap*>(targets[i]);
    (*aTargets)[i] = static_cast<IAccessible2*>(target);
    (*aTargets)[i]->AddRef();
  }

  return S_OK;
}
示例#11
0
STDMETHODIMP
ia2Accessible::get_states(AccessibleStates* aStates) {
  if (!aStates) return E_INVALIDARG;
  *aStates = 0;

  // XXX: bug 344674 should come with better approach that we have here.

  AccessibleWrap* acc = static_cast<AccessibleWrap*>(this);
  if (acc->IsDefunct()) {
    *aStates = IA2_STATE_DEFUNCT;
    return S_OK;
  }

  uint64_t state;
  MOZ_ASSERT(!acc->IsProxy());
  state = acc->State();

  if (state & states::INVALID) *aStates |= IA2_STATE_INVALID_ENTRY;
  if (state & states::REQUIRED) *aStates |= IA2_STATE_REQUIRED;

  // The following IA2 states are not supported by Gecko
  // IA2_STATE_ARMED
  // IA2_STATE_MANAGES_DESCENDANTS
  // IA2_STATE_ICONIFIED
  // IA2_STATE_INVALID // This is not a state, it is the absence of a state

  if (state & states::ACTIVE) *aStates |= IA2_STATE_ACTIVE;
  if (state & states::DEFUNCT) *aStates |= IA2_STATE_DEFUNCT;
  if (state & states::EDITABLE) *aStates |= IA2_STATE_EDITABLE;
  if (state & states::HORIZONTAL) *aStates |= IA2_STATE_HORIZONTAL;
  if (state & states::MODAL) *aStates |= IA2_STATE_MODAL;
  if (state & states::MULTI_LINE) *aStates |= IA2_STATE_MULTI_LINE;
  if (state & states::OPAQUE1) *aStates |= IA2_STATE_OPAQUE;
  if (state & states::SELECTABLE_TEXT) *aStates |= IA2_STATE_SELECTABLE_TEXT;
  if (state & states::SINGLE_LINE) *aStates |= IA2_STATE_SINGLE_LINE;
  if (state & states::STALE) *aStates |= IA2_STATE_STALE;
  if (state & states::SUPPORTS_AUTOCOMPLETION)
    *aStates |= IA2_STATE_SUPPORTS_AUTOCOMPLETION;
  if (state & states::TRANSIENT) *aStates |= IA2_STATE_TRANSIENT;
  if (state & states::VERTICAL) *aStates |= IA2_STATE_VERTICAL;
  if (state & states::CHECKED) *aStates |= IA2_STATE_CHECKABLE;
  if (state & states::PINNED) *aStates |= IA2_STATE_PINNED;

  return S_OK;
}
示例#12
0
STDMETHODIMP
ia2Accessible::get_nRelations(long* aNRelations) {
  if (!aNRelations) return E_INVALIDARG;
  *aNRelations = 0;

  AccessibleWrap* acc = static_cast<AccessibleWrap*>(this);
  if (acc->IsDefunct()) return CO_E_OBJNOTCONNECTED;

  MOZ_ASSERT(!acc->IsProxy());

  for (uint32_t idx = 0; idx < ArrayLength(sRelationTypePairs); idx++) {
    if (sRelationTypePairs[idx].second == IA2_RELATION_NULL) continue;

    Relation rel = acc->RelationByType(sRelationTypePairs[idx].first);
    if (rel.Next()) (*aNRelations)++;
  }
  return S_OK;
}
示例#13
0
STDMETHODIMP
ia2AccessibleValue::get_minimumValue(VARIANT* aMinimumValue) {
  if (!aMinimumValue) return E_INVALIDARG;

  VariantInit(aMinimumValue);

  AccessibleWrap* valueAcc = static_cast<AccessibleWrap*>(this);
  double minimumValue;
  MOZ_ASSERT(!valueAcc->IsProxy());
  if (valueAcc->IsDefunct()) {
    return CO_E_OBJNOTCONNECTED;
  }

  minimumValue = valueAcc->MinValue();

  if (IsNaN(minimumValue)) return S_FALSE;

  aMinimumValue->vt = VT_R8;
  aMinimumValue->dblVal = minimumValue;
  return S_OK;
}