本文整理了Java中com.google.gwt.user.client.ui.Tree.getTopClosedParent()方法的一些代码示例，展示了Tree.getTopClosedParent()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Tree.getTopClosedParent()方法的具体详情如下：
包路径：com.google.gwt.user.client.ui.Tree
类名称：Tree
方法名：getTopClosedParent

Tree.getTopClosedParent介绍

[英]Get the top parent above this TreeItem that is in closed state. In other words, get the parent that is guaranteed to be visible.
[中]获取处于关闭状态的树项上方的顶级父项。换句话说，获取保证可见的父对象。

代码示例

代码示例来源：origin: com.google.gwt/gwt-servlet

private void maybeCollapseTreeItem() {
 TreeItem topClosedParent = getTopClosedParent(curSelection);
 if (topClosedParent != null) {
  // Select the first visible parent if curSelection is hidden
  setSelectedItem(topClosedParent);
 } else if (curSelection.getState()) {
  curSelection.setState(false);
 } else {
  TreeItem parent = curSelection.getParentItem();
  if (parent != null) {
   setSelectedItem(parent);
  }
 }
}

代码示例来源：origin: com.google.gwt/gwt-servlet

private void maybeExpandTreeItem() {
 TreeItem topClosedParent = getTopClosedParent(curSelection);
 if (topClosedParent != null) {
  // Select the first visible parent if curSelection is hidden
  setSelectedItem(topClosedParent);
 } else if (!curSelection.getState()) {
  curSelection.setState(true);
 } else if (curSelection.getChildCount() > 0) {
  setSelectedItem(curSelection.getChild(0));
 }
}

代码示例来源：origin: com.google.gwt/gwt-servlet

/**
 * Moves the selected item up one.
 */
private void moveSelectionUp(TreeItem sel) {
 // Find a parent that is visible
 TreeItem topClosedParent = getTopClosedParent(sel);
 if (topClosedParent != null) {
  onSelection(topClosedParent, true, true);
  return;
 }
 TreeItem parent = sel.getParentItem();
 if (parent == null) {
  parent = root;
 }
 int idx = parent.getChildIndex(sel);
 if (idx > 0) {
  TreeItem sibling = parent.getChild(idx - 1);
  onSelection(findDeepestOpenChild(sibling), true, true);
 } else {
  onSelection(parent, true, true);
 }
}

代码示例来源：origin: com.google.gwt/gwt-servlet

/**
 * Moves to the next item, going into children as if dig is enabled.
 */
private void moveSelectionDown(TreeItem sel, boolean dig) {
 if (sel == root) {
  return;
 }
 // Find a parent that is visible
 TreeItem topClosedParent = getTopClosedParent(sel);
 if (topClosedParent != null) {
  moveSelectionDown(topClosedParent, false);
  return;
 }
 TreeItem parent = sel.getParentItem();
 if (parent == null) {
  parent = root;
 }
 int idx = parent.getChildIndex(sel);
 if (!dig || !sel.getState()) {
  if (idx < parent.getChildCount() - 1) {
   onSelection(parent.getChild(idx + 1), true, true);
  } else {
   moveSelectionDown(parent, false);
  }
 } else if (sel.getChildCount() > 0) {
  onSelection(sel.getChild(0), true, true);
 }
}

代码示例来源：origin: com.vaadin.external.gwt/gwt-user

private void maybeCollapseTreeItem() {
 TreeItem topClosedParent = getTopClosedParent(curSelection);
 if (topClosedParent != null) {
  // Select the first visible parent if curSelection is hidden
  setSelectedItem(topClosedParent);
 } else if (curSelection.getState()) {
  curSelection.setState(false);
 } else {
  TreeItem parent = curSelection.getParentItem();
  if (parent != null) {
   setSelectedItem(parent);
  }
 }
}

代码示例来源：origin: net.wetheinter/gwt-user

private void maybeCollapseTreeItem() {
 TreeItem topClosedParent = getTopClosedParent(curSelection);
 if (topClosedParent != null) {
  // Select the first visible parent if curSelection is hidden
  setSelectedItem(topClosedParent);
 } else if (curSelection.getState()) {
  curSelection.setState(false);
 } else {
  TreeItem parent = curSelection.getParentItem();
  if (parent != null) {
   setSelectedItem(parent);
  }
 }
}

代码示例来源：origin: net.wetheinter/gwt-user

private void maybeExpandTreeItem() {
 TreeItem topClosedParent = getTopClosedParent(curSelection);
 if (topClosedParent != null) {
  // Select the first visible parent if curSelection is hidden
  setSelectedItem(topClosedParent);
 } else if (!curSelection.getState()) {
  curSelection.setState(true);
 } else if (curSelection.getChildCount() > 0) {
  setSelectedItem(curSelection.getChild(0));
 }
}

代码示例来源：origin: com.vaadin.external.gwt/gwt-user

private void maybeExpandTreeItem() {
 TreeItem topClosedParent = getTopClosedParent(curSelection);
 if (topClosedParent != null) {
  // Select the first visible parent if curSelection is hidden
  setSelectedItem(topClosedParent);
 } else if (!curSelection.getState()) {
  curSelection.setState(true);
 } else if (curSelection.getChildCount() > 0) {
  setSelectedItem(curSelection.getChild(0));
 }
}

代码示例来源：origin: com.vaadin.external.gwt/gwt-user

/**
 * Moves the selected item up one.
 */
private void moveSelectionUp(TreeItem sel) {
 // Find a parent that is visible
 TreeItem topClosedParent = getTopClosedParent(sel);
 if (topClosedParent != null) {
  onSelection(topClosedParent, true, true);
  return;
 }
 TreeItem parent = sel.getParentItem();
 if (parent == null) {
  parent = root;
 }
 int idx = parent.getChildIndex(sel);
 if (idx > 0) {
  TreeItem sibling = parent.getChild(idx - 1);
  onSelection(findDeepestOpenChild(sibling), true, true);
 } else {
  onSelection(parent, true, true);
 }
}

代码示例来源：origin: net.wetheinter/gwt-user

/**
 * Moves the selected item up one.
 */
private void moveSelectionUp(TreeItem sel) {
 // Find a parent that is visible
 TreeItem topClosedParent = getTopClosedParent(sel);
 if (topClosedParent != null) {
  onSelection(topClosedParent, true, true);
  return;
 }
 TreeItem parent = sel.getParentItem();
 if (parent == null) {
  parent = root;
 }
 int idx = parent.getChildIndex(sel);
 if (idx > 0) {
  TreeItem sibling = parent.getChild(idx - 1);
  onSelection(findDeepestOpenChild(sibling), true, true);
 } else {
  onSelection(parent, true, true);
 }
}

代码示例来源：origin: com.vaadin.external.gwt/gwt-user

/**
 * Moves to the next item, going into children as if dig is enabled.
 */
private void moveSelectionDown(TreeItem sel, boolean dig) {
 if (sel == root) {
  return;
 }
 // Find a parent that is visible
 TreeItem topClosedParent = getTopClosedParent(sel);
 if (topClosedParent != null) {
  moveSelectionDown(topClosedParent, false);
  return;
 }
 TreeItem parent = sel.getParentItem();
 if (parent == null) {
  parent = root;
 }
 int idx = parent.getChildIndex(sel);
 if (!dig || !sel.getState()) {
  if (idx < parent.getChildCount() - 1) {
   onSelection(parent.getChild(idx + 1), true, true);
  } else {
   moveSelectionDown(parent, false);
  }
 } else if (sel.getChildCount() > 0) {
  onSelection(sel.getChild(0), true, true);
 }
}

代码示例来源：origin: net.wetheinter/gwt-user

/**
 * Moves to the next item, going into children as if dig is enabled.
 */
private void moveSelectionDown(TreeItem sel, boolean dig) {
 if (sel == root) {
  return;
 }
 // Find a parent that is visible
 TreeItem topClosedParent = getTopClosedParent(sel);
 if (topClosedParent != null) {
  moveSelectionDown(topClosedParent, false);
  return;
 }
 TreeItem parent = sel.getParentItem();
 if (parent == null) {
  parent = root;
 }
 int idx = parent.getChildIndex(sel);
 if (!dig || !sel.getState()) {
  if (idx < parent.getChildCount() - 1) {
   onSelection(parent.getChild(idx + 1), true, true);
  } else {
   moveSelectionDown(parent, false);
  }
 } else if (sel.getChildCount() > 0) {
  onSelection(sel.getChild(0), true, true);
 }
}