com.google.gwt.user.client.ui.Tree.getElement()方法的使用及代码示例

x33g5p2x  于2022-01-30 转载在 其他  
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本文整理了Java中com.google.gwt.user.client.ui.Tree.getElement()方法的一些代码示例，展示了Tree.getElement()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.getElement()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：getElement

Tree.getElement介绍

暂无

代码示例

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

/**
 * Removes one of this item's children.
 *
 * @param item the item to be removed
 */
@Override
public void removeItem(TreeItem item) {
 // Validate.
 if (children == null || !children.contains(item)) {
  return;
 }
 // Orphan.
 Tree oldTree = tree;
 item.setTree(null);
 // Physical detach.
 if (isRoot) {
  oldTree.getElement().removeChild(item.getElement());
 } else {
  childSpanElem.removeChild(item.getElement());
 }
 // Logical detach.
 item.setParentItem(null);
 children.remove(item);
 if (!isRoot && children.size() == 0) {
  updateState(false, false);
 }
}

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

private void init(ImageAdapter images, boolean useLeafImages) {
 setImages(images, useLeafImages);
 setElement(DOM.createDiv());
 getElement().getStyle().setProperty("position", "relative");
 // Fix rendering problem with relatively-positioned elements and their
 // children by
 // forcing the element that is positioned relatively to 'have layout'
 getElement().getStyle().setProperty("zoom", "1");
 focusable = FocusPanel.impl.createFocusable();
 focusable.getStyle().setProperty("fontSize", "0");
 focusable.getStyle().setProperty("position", "absolute");
 // Hide focus outline in Mozilla/Webkit
 focusable.getStyle().setProperty("outline", "0px");
 // Hide focus outline in IE 6/7
 focusable.setAttribute("hideFocus", "true");
 DOM.setIntStyleAttribute(focusable, "zIndex", -1);
 DOM.appendChild(getElement(), focusable);
 sinkEvents(Event.ONMOUSEDOWN | Event.ONCLICK | Event.KEYEVENTS);
 DOM.sinkEvents(focusable, Event.FOCUSEVENTS);
 // The 'root' item is invisible and serves only as a container
 // for all top-level items.
 root = new TreeItem(true);
 root.setTree(this);
 setStyleName("gwt-Tree");
 // Add a11y role "tree"
 Roles.getTreeRole().set(focusable);
}

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

private boolean elementClicked(Element hElem) {
 ArrayList<Element> chain = new ArrayList<Element>();
 collectElementChain(chain, getElement(), hElem);
 TreeItem item = findItemByChain(chain, 0, root);
 if (item != null && item != root) {
  if (item.getChildCount() > 0
    && item.getImageElement().isOrHasChild(hElem)) {
   item.setState(!item.getState(), true);
   return true;
  } else if (item.getElement().isOrHasChild(hElem)) {
   onSelection(item, true, !shouldTreeDelegateFocusToElement(hElem));
   return true;
  }
 }
 return false;
}

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

Element childContainer = isRoot ? tree.getElement() : childSpanElem;
if (beforeIndex == childCount) {
 childContainer.appendChild(item.getElement());

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

if ((DOM.eventGetCurrentTarget(event) == getElement())
  && (event.getButton() == Event.BUTTON_LEFT)) {
 elementClicked(DOM.eventGetTarget(event));
if (event.getKeyCode() == KeyCodes.KEY_TAB) {
 ArrayList<Element> chain = new ArrayList<Element>();
 collectElementChain(chain, getElement(), DOM.eventGetTarget(event));
 TreeItem item = findItemByChain(chain, 0, root);
 if (item != getSelectedItem()) {

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

/**
 * Removes one of this item's children.
 *
 * @param item the item to be removed
 */
@Override
public void removeItem(TreeItem item) {
 // Validate.
 if (children == null || !children.contains(item)) {
  return;
 }
 // Orphan.
 Tree oldTree = tree;
 item.setTree(null);
 // Physical detach.
 if (isRoot) {
  oldTree.getElement().removeChild(item.getElement());
 } else {
  childSpanElem.removeChild(item.getElement());
 }
 // Logical detach.
 item.setParentItem(null);
 children.remove(item);
 if (!isRoot && children.size() == 0) {
  updateState(false, false);
 }
}

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

/**
 * Removes one of this item's children.
 *
 * @param item the item to be removed
 */
@Override
public void removeItem(TreeItem item) {
 // Validate.
 if (children == null || !children.contains(item)) {
  return;
 }
 // Orphan.
 Tree oldTree = tree;
 item.setTree(null);
 // Physical detach.
 if (isRoot) {
  oldTree.getElement().removeChild(item.getElement());
 } else {
  childSpanElem.removeChild(item.getElement());
 }
 // Logical detach.
 item.setParentItem(null);
 children.remove(item);
 if (!isRoot && children.size() == 0) {
  updateState(false, false);
 }
}

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

private boolean elementClicked(Element hElem) {
 ArrayList<Element> chain = new ArrayList<Element>();
 collectElementChain(chain, getElement(), hElem);
 TreeItem item = findItemByChain(chain, 0, root);
 if (item != null && item != root) {
  if (item.getChildCount() > 0
    && item.getImageElement().isOrHasChild(hElem)) {
   item.setState(!item.getState(), true);
   return true;
  } else if (item.getElement().isOrHasChild(hElem)) {
   onSelection(item, true, !shouldTreeDelegateFocusToElement(hElem));
   return true;
  }
 }
 return false;
}

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

private void init(ImageAdapter images, boolean useLeafImages) {
 setImages(images, useLeafImages);
 setElement(DOM.createDiv());
 getElement().getStyle().setProperty("position", "relative");
 // Fix rendering problem with relatively-positioned elements and their
 // children by
 // forcing the element that is positioned relatively to 'have layout'
 getElement().getStyle().setProperty("zoom", "1");
 focusable = FocusPanel.impl.createFocusable();
 focusable.getStyle().setProperty("fontSize", "0");
 focusable.getStyle().setProperty("position", "absolute");
 // Hide focus outline in Mozilla/Webkit
 focusable.getStyle().setProperty("outline", "0px");
 // Hide focus outline in IE 6/7
 focusable.setAttribute("hideFocus", "true");
 DOM.setIntStyleAttribute(focusable, "zIndex", -1);
 DOM.appendChild(getElement(), focusable);
 sinkEvents(Event.ONMOUSEDOWN | Event.ONCLICK | Event.KEYEVENTS);
 DOM.sinkEvents(focusable, Event.FOCUSEVENTS);
 // The 'root' item is invisible and serves only as a container
 // for all top-level items.
 root = new TreeItem(true);
 root.setTree(this);
 setStyleName("gwt-Tree");
 // Add a11y role "tree"
 Roles.getTreeRole().set(focusable);
}

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

private void init(ImageAdapter images, boolean useLeafImages) {
 setImages(images, useLeafImages);
 setElement(DOM.createDiv());
 getElement().getStyle().setProperty("position", "relative");
 // Fix rendering problem with relatively-positioned elements and their
 // children by
 // forcing the element that is positioned relatively to 'have layout'
 getElement().getStyle().setProperty("zoom", "1");
 focusable = FocusPanel.impl.createFocusable();
 focusable.getStyle().setProperty("fontSize", "0");
 focusable.getStyle().setProperty("position", "absolute");
 // Hide focus outline in Mozilla/Webkit
 focusable.getStyle().setProperty("outline", "0px");
 // Hide focus outline in IE 6/7
 focusable.setAttribute("hideFocus", "true");
 DOM.setIntStyleAttribute(focusable, "zIndex", -1);
 DOM.appendChild(getElement(), focusable);
 sinkEvents(Event.ONMOUSEDOWN | Event.ONCLICK | Event.KEYEVENTS);
 DOM.sinkEvents(focusable, Event.FOCUSEVENTS);
 // The 'root' item is invisible and serves only as a container
 // for all top-level items.
 root = new TreeItem(true);
 root.setTree(this);
 setStyleName("gwt-Tree");
 // Add a11y role "tree"
 Roles.getTreeRole().set(focusable);
}

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

private boolean elementClicked(Element hElem) {
 ArrayList<Element> chain = new ArrayList<Element>();
 collectElementChain(chain, getElement(), hElem);
 TreeItem item = findItemByChain(chain, 0, root);
 if (item != null && item != root) {
  if (item.getChildCount() > 0
    && item.getImageElement().isOrHasChild(hElem)) {
   item.setState(!item.getState(), true);
   return true;
  } else if (item.getElement().isOrHasChild(hElem)) {
   onSelection(item, true, !shouldTreeDelegateFocusToElement(hElem));
   return true;
  }
 }
 return false;
}

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

Element childContainer = isRoot ? tree.getElement() : childSpanElem;
if (beforeIndex == childCount) {
 childContainer.appendChild(item.getElement());

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

Element childContainer = isRoot ? tree.getElement() : childSpanElem;
if (beforeIndex == childCount) {
 childContainer.appendChild(item.getElement());

代码示例来源：origin: org.eclipse.che.plugin/che-plugin-java-ext-lang-client

@Override
public void setTreeOfChanges(Map<String, PreviewNode> nodes) {
 containerChanges.clear();
 showDiffPanel(false);
 final SelectionModel<PreviewNode> selectionModel = new SingleSelectionModel<>();
 selectionModel.addSelectionChangeHandler(
   event -> {
    PreviewNode selectedNode =
      (PreviewNode) ((SingleSelectionModel) selectionModel).getSelectedObject();
    delegate.onSelectionChanged(selectedNode);
   });
 Tree tree = new Tree();
 tree.getElement().setId("tree-of-changes");
 for (PreviewNode parentChange : nodes.values()) {
  TreeItem treeItem = new TreeItem();
  containerChanges.put(treeItem, parentChange);
  createTreeElement(treeItem, parentChange.getDescription(), parentChange.getChildren());
  tree.addItem(treeItem);
 }
 tree.addSelectionHandler(
   event -> {
    if (selectedElement != null) {
     selectedElement.getStyle().setProperty("background", "transparent");
    }
    selectedElement = event.getSelectedItem().getWidget().getElement();
    selectedElement.getStyle().setProperty("background", getEditorSelectionColor());
   });
 treePanel.clear();
 treePanel.add(tree);
}

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

if ((DOM.eventGetCurrentTarget(event) == getElement())
  && (event.getButton() == Event.BUTTON_LEFT)) {
 elementClicked(DOM.eventGetTarget(event));
if (event.getKeyCode() == KeyCodes.KEY_TAB) {
 ArrayList<Element> chain = new ArrayList<Element>();
 collectElementChain(chain, getElement(), DOM.eventGetTarget(event));
 TreeItem item = findItemByChain(chain, 0, root);
 if (item != getSelectedItem()) {

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

if ((DOM.eventGetCurrentTarget(event) == getElement())
  && (event.getButton() == Event.BUTTON_LEFT)) {
 elementClicked(DOM.eventGetTarget(event));
if (event.getKeyCode() == KeyCodes.KEY_TAB) {
 ArrayList<Element> chain = new ArrayList<Element>();
 collectElementChain(chain, getElement(), DOM.eventGetTarget(event));
 TreeItem item = findItemByChain(chain, 0, root);
 if (item != getSelectedItem()) {

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