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C++ HyperTextAccessible::DOMSelection方法代码示例

本文整理汇总了C++中HyperTextAccessible::DOMSelection方法的典型用法代码示例。如果您正苦于以下问题:C++ HyperTextAccessible::DOMSelection方法的具体用法?C++ HyperTextAccessible::DOMSelection怎么用?C++ HyperTextAccessible::DOMSelection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HyperTextAccessible的用法示例。


在下文中一共展示了HyperTextAccessible::DOMSelection方法的1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: ProcessTextSelChangeEvent

void SelectionManager::ProcessTextSelChangeEvent(AccEvent* aEvent) {
  // Fire selection change event if it's not pure caret-move selection change,
  // i.e. the accessible has or had not collapsed selection.
  AccTextSelChangeEvent* event = downcast_accEvent(aEvent);
  if (!event->IsCaretMoveOnly()) nsEventShell::FireEvent(aEvent);

  // Fire caret move event if there's a caret in the selection.
  nsINode* caretCntrNode = nsCoreUtils::GetDOMNodeFromDOMPoint(
      event->mSel->GetFocusNode(), event->mSel->FocusOffset());
  if (!caretCntrNode) return;

  HyperTextAccessible* caretCntr = nsAccUtils::GetTextContainer(caretCntrNode);
  NS_ASSERTION(
      caretCntr,
      "No text container for focus while there's one for common ancestor?!");
  if (!caretCntr) return;

  Selection* selection = caretCntr->DOMSelection();

  // XXX Sometimes we can't get a selection for caretCntr, in that case assume
  // event->mSel is correct.
  if (!selection) selection = event->mSel;

  mCaretOffset = caretCntr->DOMPointToOffset(selection->GetFocusNode(),
                                             selection->FocusOffset());
  mAccWithCaret = caretCntr;
  if (mCaretOffset != -1) {
    RefPtr<AccCaretMoveEvent> caretMoveEvent =
        new AccCaretMoveEvent(caretCntr, mCaretOffset, aEvent->FromUserInput());
    nsEventShell::FireEvent(caretMoveEvent);
  }
}
开发者ID:Noctem,项目名称:gecko-dev,代码行数:32,代码来源:SelectionManager.cpp


注:本文中的HyperTextAccessible::DOMSelection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。