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C++ DocAccessible::GetContainerAccessible方法代码示例

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


在下文中一共展示了DocAccessible::GetContainerAccessible方法的4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: AccTextChangeEvent

void
NotificationController::CreateTextChangeEventFor(AccMutationEvent* aEvent)
{
  DocAccessible* document = aEvent->GetDocAccessible();
  Accessible* container = document->GetContainerAccessible(aEvent->mNode);
  if (!container)
    return;

  HyperTextAccessible* textAccessible = container->AsHyperText();
  if (!textAccessible)
    return;

  // Don't fire event for the first html:br in an editor.
  if (aEvent->mAccessible->Role() == roles::WHITESPACE) {
    nsCOMPtr<nsIEditor> editor = textAccessible->GetEditor();
    if (editor) {
      bool isEmpty = false;
      editor->GetDocumentIsEmpty(&isEmpty);
      if (isEmpty)
        return;
    }
  }

  int32_t offset = textAccessible->GetChildOffset(aEvent->mAccessible);

  nsAutoString text;
  aEvent->mAccessible->AppendTextTo(text);
  if (text.IsEmpty())
    return;

  aEvent->mTextChangeEvent =
    new AccTextChangeEvent(textAccessible, offset, text, aEvent->IsShow(),
                           aEvent->mIsFromUserInput ? eFromUserInput : eNoUserInput);
}
开发者ID:AshishNamdev,项目名称:mozilla-central,代码行数:34,代码来源:NotificationController.cpp

示例2: nsIntPoint

nsIntPoint
nsAccUtils::GetScreenCoordsForParent(nsAccessNode *aAccessNode)
{
  DocAccessible* document = aAccessNode->Document();
  nsAccessible* parent = document->GetContainerAccessible(aAccessNode->GetNode());
  if (!parent)
    return nsIntPoint(0, 0);

  nsIFrame *parentFrame = parent->GetFrame();
  if (!parentFrame)
    return nsIntPoint(0, 0);

  nsIntRect parentRect = parentFrame->GetScreenRectExternal();
  return nsIntPoint(parentRect.x, parentRect.y);
}
开发者ID:jason188,项目名称:mozilla-central,代码行数:15,代码来源:nsAccUtils.cpp

示例3: nsIntPoint

nsIntPoint
nsAccUtils::GetScreenCoordsForParent(nsAccessNode *aAccessNode)
{
  DocAccessible* document = aAccessNode->Document();
  Accessible* parent = document->GetContainerAccessible(aAccessNode->GetNode());
  if (!parent)
    return nsIntPoint(0, 0);

  nsIFrame *parentFrame = parent->GetFrame();
  if (!parentFrame)
    return nsIntPoint(0, 0);

  nsRect rect = parentFrame->GetScreenRectInAppUnits();
  return nsPoint(rect.x, rect.y).
    ToNearestPixels(parentFrame->PresContext()->AppUnitsPerDevPixel());
}
开发者ID:AshishNamdev,项目名称:mozilla-central,代码行数:16,代码来源:nsAccUtils.cpp

示例4: AccStateChangeEvent

void
RootAccessible::HandlePopupHidingEvent(nsINode* aPopupNode)
{
  // Get popup accessible. There are cases when popup element isn't accessible
  // but an underlying widget is and behaves like popup, an example is
  // autocomplete popups.
  DocAccessible* document = nsAccUtils::GetDocAccessibleFor(aPopupNode);
  if (!document)
    return;

  Accessible* popup = document->GetAccessible(aPopupNode);
  if (!popup) {
    Accessible* popupContainer = document->GetContainerAccessible(aPopupNode);
    if (!popupContainer)
      return;

    uint32_t childCount = popupContainer->ChildCount();
    for (uint32_t idx = 0; idx < childCount; idx++) {
      Accessible* child = popupContainer->GetChildAt(idx);
      if (child->IsAutoCompletePopup()) {
        popup = child;
        break;
      }
    }

    // No popup no events. Focus is managed by DOM. This is a case for
    // menupopups of menus on Linux since there are no accessible for popups.
    if (!popup)
      return;
  }

  // In case of autocompletes and comboboxes fire state change event for
  // expanded state. Note, HTML form autocomplete isn't a subject of state
  // change event because they aren't autocompletes strictly speaking.
  // When popup closes (except nested popups and menus) then fire focus event to
  // where it was. The focus event is expected even if popup didn't take a focus.

  static const uint32_t kNotifyOfFocus = 1;
  static const uint32_t kNotifyOfState = 2;
  uint32_t notifyOf = 0;

  // HTML select is target of popuphidding event. Otherwise get container
  // widget. No container widget means this is either tooltip or menupopup.
  // No events in the former case.
  Accessible* widget = nullptr;
  if (popup->IsCombobox()) {
    widget = popup;
  } else {
    widget = popup->ContainerWidget();
    if (!widget) {
      if (!popup->IsMenuPopup())
        return;

      widget = popup;
    }
  }

  if (popup->IsAutoCompletePopup()) {
    // No focus event for autocomplete because it's managed by
    // DOMMenuItemInactive events.
    if (widget->IsAutoComplete())
      notifyOf = kNotifyOfState;

  } else if (widget->IsCombobox()) {
    // Fire focus for active combobox, otherwise the focus is managed by DOM
    // focus notifications. Always fire state change event.
    if (widget->IsActiveWidget())
      notifyOf = kNotifyOfFocus;
    notifyOf |= kNotifyOfState;

  } else if (widget->IsMenuButton()) {
    // Can be a part of autocomplete.
    Accessible* compositeWidget = widget->ContainerWidget();
    if (compositeWidget && compositeWidget->IsAutoComplete()) {
      widget = compositeWidget;
      notifyOf = kNotifyOfState;
    }

    // Autocomplete (like searchbar) can be inactive when popup hiddens
    notifyOf |= kNotifyOfFocus;

  } else if (widget == popup) {
    // Top level context menus and alerts.
    // Ignore submenus and menubar. When submenu is closed then sumbenu
    // container menuitem takes a focus via DOMMenuItemActive notification.
    // For menubars processing we listen DOMMenubarActive/Inactive
    // notifications.
    notifyOf = kNotifyOfFocus;
  }

  // Restore focus to where it was.
  if (notifyOf & kNotifyOfFocus) {
    FocusMgr()->ActiveItemChanged(nullptr);
#ifdef A11Y_LOG
    if (logging::IsEnabled(logging::eFocus))
      logging::ActiveItemChangeCausedBy("popuphiding", popup);
#endif
  }

  // Fire expanded state change event.
//.........这里部分代码省略.........
开发者ID:eeejay,项目名称:gecko-dev,代码行数:101,代码来源:RootAccessible.cpp


注:本文中的DocAccessible::GetContainerAccessible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。