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C++ AccTextChangeEvent::GetStartOffset方法代码示例

本文整理汇总了C++中AccTextChangeEvent::GetStartOffset方法的典型用法代码示例。如果您正苦于以下问题：C++ AccTextChangeEvent::GetStartOffset方法的具体用法？C++ AccTextChangeEvent::GetStartOffset怎么用？C++ AccTextChangeEvent::GetStartOffset使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类AccTextChangeEvent的用法示例。


在下文中一共展示了AccTextChangeEvent::GetStartOffset方法的6个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: xpcAccStateChangeEvent

already_AddRefed<nsIAccessibleEvent>
a11y::MakeXPCEvent(AccEvent* aEvent)
{
  DocAccessible* doc = aEvent->GetDocAccessible();
  Accessible* acc = aEvent->GetAccessible();
  nsINode* node = acc->GetNode();
  nsIDOMNode* domNode = node ? node->AsDOMNode() : nullptr;
  bool fromUser = aEvent->IsFromUserInput();
  uint32_t type = aEvent->GetEventType();
  uint32_t eventGroup = aEvent->GetEventGroups();
  nsCOMPtr<nsIAccessibleEvent> xpEvent;

  if (eventGroup & (1 << AccEvent::eStateChangeEvent)) {
    AccStateChangeEvent* sc = downcast_accEvent(aEvent);
    bool extra = false;
    uint32_t state = nsAccUtils::To32States(sc->GetState(), &extra);
    xpEvent = new xpcAccStateChangeEvent(type, acc, doc, domNode, fromUser,
                                         state, extra, sc->IsStateEnabled());
    return xpEvent.forget();
  }

  if (eventGroup & (1 << AccEvent::eTextChangeEvent)) {
    AccTextChangeEvent* tc = downcast_accEvent(aEvent);
    nsString text;
    tc->GetModifiedText(text);
    xpEvent = new xpcAccTextChangeEvent(type, acc, doc, domNode, fromUser,
                                        tc->GetStartOffset(), tc->GetLength(),
                                        tc->IsTextInserted(), text);
    return xpEvent.forget();
  }

  if (eventGroup & (1 << AccEvent::eHideEvent)) {
    AccHideEvent* hideEvent = downcast_accEvent(aEvent);
    xpEvent = new xpcAccHideEvent(type, acc, doc, domNode, fromUser,
                                  hideEvent->TargetParent(),
                                  hideEvent->TargetNextSibling(),
                                  hideEvent->TargetPrevSibling());
    return xpEvent.forget();
  }

  if (eventGroup & (1 << AccEvent::eCaretMoveEvent)) {
    AccCaretMoveEvent* cm = downcast_accEvent(aEvent);
    xpEvent = new xpcAccCaretMoveEvent(type, acc, doc, domNode, fromUser,
                                       cm->GetCaretOffset());
    return xpEvent.forget();
  }

  if (eventGroup & (1 << AccEvent::eVirtualCursorChangeEvent)) {
    AccVCChangeEvent* vcc = downcast_accEvent(aEvent);
    xpEvent = new xpcAccVirtualCursorChangeEvent(type, acc, doc, domNode, fromUser,
                                                 vcc->OldAccessible(),
                                                 vcc->OldStartOffset(),
                                                 vcc->OldEndOffset(),
                                                 vcc->Reason());
    return xpEvent.forget();
  }

  xpEvent = new xpcAccEvent(type, acc, doc, domNode, fromUser);
  return xpEvent.forget();
  }
开发者ID:Incognito，项目名称:mozilla-central，代码行数:60，代码来源:AccEvent.cpp

示例2: 

nsresult
AccessibleWrap::FireAtkTextChangedEvent(AccEvent* aEvent,
                                        AtkObject* aObject)
{
    AccTextChangeEvent* event = downcast_accEvent(aEvent);
    NS_ENSURE_TRUE(event, NS_ERROR_FAILURE);

    int32_t start = event->GetStartOffset();
    uint32_t length = event->GetLength();
    bool isInserted = event->IsTextInserted();
    bool isFromUserInput = aEvent->IsFromUserInput();

  if (gAvailableAtkSignals == eUnknown)
    gAvailableAtkSignals =
      g_signal_lookup("text-insert", G_OBJECT_TYPE(aObject)) ?
        eHaveNewAtkTextSignals : eNoNewAtkSignals;

  if (gAvailableAtkSignals == eNoNewAtkSignals) {
    // XXX remove this code and the gHaveNewTextSignals check when we can
    // stop supporting old atk since it doesn't really work anyway
    // see bug 619002
    const char* signal_name =
      oldTextChangeStrings[isFromUserInput][isInserted];
    g_signal_emit_by_name(aObject, signal_name, start, length);
  } else {
    nsAutoString text;
    event->GetModifiedText(text);
    const char* signal_name =
      textChangedStrings[isFromUserInput][isInserted];
    g_signal_emit_by_name(aObject, signal_name, start, length,
                          NS_ConvertUTF16toUTF8(text).get());
  }

  return NS_OK;
}
开发者ID:piatra，项目名称:gecko-dev，代码行数:35，代码来源:AccessibleWrap.cpp

示例3: HandleAccEvent

nsresult
HyperTextAccessibleWrap::HandleAccEvent(AccEvent* aEvent)
{
  uint32_t eventType = aEvent->GetEventType();

  if (eventType == nsIAccessibleEvent::EVENT_TEXT_REMOVED ||
      eventType == nsIAccessibleEvent::EVENT_TEXT_INSERTED) {
    Accessible* accessible = aEvent->GetAccessible();
    if (accessible && accessible->IsHyperText()) {
      AccTextChangeEvent* event = downcast_accEvent(aEvent);
        HyperTextAccessibleWrap* text =
          static_cast<HyperTextAccessibleWrap*>(accessible->AsHyperText());
      ia2AccessibleText::UpdateTextChangeData(text, event->IsTextInserted(),
                                              event->ModifiedText(),
                                              event->GetStartOffset(),
                                              event->GetLength());
    }
  }

  return HyperTextAccessible::HandleAccEvent(aEvent);
}
开发者ID:70599，项目名称:Waterfox，代码行数:21，代码来源:HyperTextAccessibleWrap.cpp

示例4: 

nsresult
AccessibleWrap::FireAtkTextChangedEvent(AccEvent* aEvent,
                                        AtkObject* aObject)
{
    MAI_LOG_DEBUG(("\n\nReceived: EVENT_TEXT_REMOVED/INSERTED\n"));

    AccTextChangeEvent* event = downcast_accEvent(aEvent);
    NS_ENSURE_TRUE(event, NS_ERROR_FAILURE);

    PRInt32 start = event->GetStartOffset();
    PRUint32 length = event->GetLength();
    bool isInserted = event->IsTextInserted();
    bool isFromUserInput = aEvent->IsFromUserInput();
    char* signal_name = nsnull;

  if (gAvailableAtkSignals == eUnknown)
    gAvailableAtkSignals =
      g_signal_lookup("text-insert", G_OBJECT_TYPE(aObject)) ?
        eHaveNewAtkTextSignals : eNoNewAtkSignals;

  if (gAvailableAtkSignals == eNoNewAtkSignals) {
    // XXX remove this code and the gHaveNewTextSignals check when we can
    // stop supporting old atk since it doesn't really work anyway
    // see bug 619002
    signal_name = g_strconcat(isInserted ? "text_changed::insert" :
                              "text_changed::delete",
                              isFromUserInput ? "" : kNonUserInputEvent, NULL);
    g_signal_emit_by_name(aObject, signal_name, start, length);
  } else {
    nsAutoString text;
    event->GetModifiedText(text);
    signal_name = g_strconcat(isInserted ? "text-insert" : "text-remove",
                              isFromUserInput ? "" : "::system", NULL);
    g_signal_emit_by_name(aObject, signal_name, start, length,
                          NS_ConvertUTF16toUTF8(text).get());
  }

  g_free(signal_name);
  return NS_OK;
}
开发者ID:Bmetz，项目名称:mozilla-central，代码行数:40，代码来源:AccessibleWrap.cpp

示例5: 

nsresult
nsAccessibleWrap::FireAtkTextChangedEvent(AccEvent* aEvent,
                                          AtkObject *aObject)
{
    MAI_LOG_DEBUG(("\n\nReceived: EVENT_TEXT_REMOVED/INSERTED\n"));

    AccTextChangeEvent* event = downcast_accEvent(aEvent);
    NS_ENSURE_TRUE(event, NS_ERROR_FAILURE);

    PRInt32 start = event->GetStartOffset();
    PRUint32 length = event->GetLength();
    PRBool isInserted = event->IsTextInserted();

    PRBool isFromUserInput = aEvent->IsFromUserInput();

    char *signal_name = g_strconcat(isInserted ? "text_changed::insert" : "text_changed::delete",
                                    isFromUserInput ? "" : kNonUserInputEvent, NULL);
    g_signal_emit_by_name(aObject, signal_name, start, length);
    g_free (signal_name);

    return NS_OK;
}
开发者ID:jiaofeng，项目名称:Icefox，代码行数:22，代码来源:nsAccessibleWrap.cpp

示例6: HandleAccEvent

nsresult AccessibleWrap::HandleAccEvent(AccEvent* aEvent) {
  auto accessible = static_cast<AccessibleWrap*>(aEvent->GetAccessible());
  NS_ENSURE_TRUE(accessible, NS_ERROR_FAILURE);
  DocAccessibleWrap* doc =
      static_cast<DocAccessibleWrap*>(accessible->Document());
  if (doc) {
    switch (aEvent->GetEventType()) {
      case nsIAccessibleEvent::EVENT_FOCUS: {
        if (DocAccessibleWrap* topContentDoc =
                doc->GetTopLevelContentDoc(accessible)) {
          topContentDoc->CacheFocusPath(accessible);
        }
        break;
      }
      case nsIAccessibleEvent::EVENT_VIRTUALCURSOR_CHANGED: {
        AccVCChangeEvent* vcEvent = downcast_accEvent(aEvent);
        auto newPosition =
            static_cast<AccessibleWrap*>(vcEvent->NewAccessible());
        if (newPosition) {
          if (DocAccessibleWrap* topContentDoc =
                  doc->GetTopLevelContentDoc(accessible)) {
            topContentDoc->CacheFocusPath(newPosition);
          }
        }
        break;
      }
    }
  }

  nsresult rv = Accessible::HandleAccEvent(aEvent);
  NS_ENSURE_SUCCESS(rv, rv);

  if (IPCAccessibilityActive()) {
    return NS_OK;
  }

  // The accessible can become defunct if we have an xpcom event listener
  // which decides it would be fun to change the DOM and flush layout.
  if (accessible->IsDefunct() || !accessible->IsBoundToParent()) {
    return NS_OK;
  }

  if (doc) {
    if (!nsCoreUtils::IsContentDocument(doc->DocumentNode())) {
      return NS_OK;
    }
  }

  SessionAccessibility* sessionAcc =
      SessionAccessibility::GetInstanceFor(accessible);
  if (!sessionAcc) {
    return NS_OK;
  }

  switch (aEvent->GetEventType()) {
    case nsIAccessibleEvent::EVENT_FOCUS:
      sessionAcc->SendFocusEvent(accessible);
      break;
    case nsIAccessibleEvent::EVENT_VIRTUALCURSOR_CHANGED: {
      AccVCChangeEvent* vcEvent = downcast_accEvent(aEvent);
      auto newPosition = static_cast<AccessibleWrap*>(vcEvent->NewAccessible());
      auto oldPosition = static_cast<AccessibleWrap*>(vcEvent->OldAccessible());

      if (sessionAcc && newPosition) {
        if (oldPosition != newPosition) {
          if (vcEvent->Reason() == nsIAccessiblePivot::REASON_POINT) {
            sessionAcc->SendHoverEnterEvent(newPosition);
          } else {
            sessionAcc->SendAccessibilityFocusedEvent(newPosition);
          }
        }

        if (vcEvent->BoundaryType() != nsIAccessiblePivot::NO_BOUNDARY) {
          sessionAcc->SendTextTraversedEvent(
              newPosition, vcEvent->NewStartOffset(), vcEvent->NewEndOffset());
        }
      }
      break;
    }
    case nsIAccessibleEvent::EVENT_TEXT_CARET_MOVED: {
      AccCaretMoveEvent* event = downcast_accEvent(aEvent);
      sessionAcc->SendTextSelectionChangedEvent(accessible,
                                                event->GetCaretOffset());
      break;
    }
    case nsIAccessibleEvent::EVENT_TEXT_INSERTED:
    case nsIAccessibleEvent::EVENT_TEXT_REMOVED: {
      AccTextChangeEvent* event = downcast_accEvent(aEvent);
      sessionAcc->SendTextChangedEvent(
          accessible, event->ModifiedText(), event->GetStartOffset(),
          event->GetLength(), event->IsTextInserted(),
          event->IsFromUserInput());
      break;
    }
    case nsIAccessibleEvent::EVENT_STATE_CHANGE: {
      AccStateChangeEvent* event = downcast_accEvent(aEvent);
      auto state = event->GetState();
      if (state & states::CHECKED) {
        sessionAcc->SendClickedEvent(accessible, event->IsStateEnabled());
      }
//.........这里部分代码省略.........
开发者ID:djg，项目名称:gecko-dev，代码行数:101，代码来源:AccessibleWrap.cpp


注：本文中的AccTextChangeEvent::GetStartOffset方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。