com.google.gwt.dom.client.Element.getFirstChild()方法的使用及代码示例

x33g5p2x  于2022-01-19 转载在 其他  
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本文整理了Java中com.google.gwt.dom.client.Element.getFirstChild()方法的一些代码示例，展示了Element.getFirstChild()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。Element.getFirstChild()方法的具体详情如下：
包路径：com.google.gwt.dom.client.Element
类名称：Element
方法名：getFirstChild

Element.getFirstChild介绍

[英]The first child of element this element. If there is no such element, this returns null.
[中]此元素的第一个子元素。如果没有这样的元素，则返回null。

代码示例

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

  1. /**
  2.  * Get the input element in edit mode.
  3.  */
  4. private InputElement getInputElement(Element parent) {
  5.  return parent.getFirstChild().<InputElement> cast();
  6. }

代码示例来源：origin: com.extjs/gxt

  1. protected void doAllWidths(List<Integer> ws, int tw) {
  2.  if (!enableGrouping) return;
  3.  NodeList<Element> gs = getGroups();
  4.  for (int i = 0, len = gs.getLength(); i < len; i++) {
  5.   Element s = gs.getItem(i).getChildNodes().getItem(2).cast();
  6.   El.fly(s).setWidth(tw);
  7.   if (s.getFirstChild() == null) return;
  8.   El.fly(s.getFirstChildElement()).setWidth(tw);
  9.   TableSectionElement tse = s.getFirstChildElement().cast();
  10.   NodeList<Element> cells = tse.getRows().getItem(0).getChildNodes().cast();
  11.   for (int j = 0, wlen = ws.size(); j < wlen; j++) {
  12.    El.fly(cells.getItem(j)).setWidth(ws.get(j));
  13.   }
  14.  }
  15. }

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

  1. /**
  2.   * Update the view data based on the current value.
  3.   *
  4.   * @param parent the parent element
  5.   * @param viewData the {@link ViewData} object to update
  6.   * @param isEditing true if in edit mode
  7.   * @return the new value
  8.   */
  9.  private String updateViewData(Element parent, ViewData viewData,
  10.    boolean isEditing) {
  11.   InputElement input = (InputElement) parent.getFirstChild();
  12.   String value = input.getValue();
  13.   viewData.setText(value);
  14.   viewData.setEditing(isEditing);
  15.   return value;
  16.  }
  17. }

代码示例来源：origin: org.eclipse.che.core/che-core-ide-ui

  1. public void onElementChanged(NodeDescriptor node, Element element) {
  2.  Element el = getRootContainer(node).getFirstChildElement();
  3.  if (el == null) {
  4.   return;
  5.  }
  6.  el.removeFromParent();
  7.  getRootContainer(node).insertFirst(element.getFirstChild());
  8.  node.setNodeContainerElement(null);
  9.  node.setJointContainerElement(null);
  10.  onSelectChange(node.getNode(), tree.getSelectionModel().isSelected(node.getNode()));
  11. }

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

  1. /**
  2.  * Creates an HTML IFRAME element with a name.
  3.  * 
  4.  * @param name the name of the frame, which must contain at least one
  5.  *          non-whitespace character and must not contain reserved HTML markup
  6.  *          characters such as '<code>&lt;</code>', '<code>&gt;</code>',
  7.  *          or '<code>&amp;</code>'
  8.  * @return the newly-created element
  9.  * @throws IllegalArgumentException if the supplied name is not allowed 
  10.  */
  11. private static IFrameElement createIFrame(String name) {
  12.  if (name == null || !isValidName(name.trim())) {
  13.   throw new IllegalArgumentException(
  14.     "expecting one or more non-whitespace chars with no '<', '>', or '&'");
  15.  }
  16.  // Use innerHTML to implicitly create the <iframe>. This is necessary
  17.  // because most browsers will not respect a dynamically-set iframe name.
  18.  Element div = DOM.createDiv();
  19.  div.setInnerSafeHtml(IFrameTemplate.INSTANCE.get(name));
  20.  return div.getFirstChild().cast();
  21. }

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

  1. @Override
  2. public void onBrowserEvent(Context context, Element parent, String value,
  3.   NativeEvent event, ValueUpdater<String> valueUpdater) {
  4.  super.onBrowserEvent(context, parent, value, event, valueUpdater);
  5.  String type = event.getType();
  6.  if (BrowserEvents.CHANGE.equals(type)) {
  7.   Object key = context.getKey();
  8.   SelectElement select = parent.getFirstChild().cast();
  9.   String newValue = options.get(select.getSelectedIndex());
  10.   setViewData(key, newValue);
  11.   finishEditing(parent, newValue, key, valueUpdater);
  12.   if (valueUpdater != null) {
  13.    valueUpdater.update(newValue);
  14.   }
  15.  }
  16. }

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

  1. && event.getKeyCode() == KeyCodes.KEY_ENTER;
  2. if (BrowserEvents.CHANGE.equals(type) || enterPressed) {
  3.  InputElement input = parent.getFirstChild().cast();
  4.  Boolean isChecked = input.isChecked();

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

  1. /**
  2.  * Get the input element in edit mode.
  3.  */
  4. private InputElement getInputElement(Element parent) {
  5.  return parent.getFirstChild().<InputElement> cast();
  6. }

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

  1. /**
  2.  * Get the input element in edit mode.
  3.  */
  4. private InputElement getInputElement(Element parent) {
  5.  return parent.getFirstChild().<InputElement> cast();
  6. }

代码示例来源：origin: bedatadriven/activityinfo

  1. /**
  2.  * Get the input element in edit mode.
  3.  */
  4. private InputElement getInputElement(Element parent) {
  5.  return parent.getFirstChild().<InputElement> cast();
  6. }

代码示例来源：origin: org.eclipse.che.core/che-core-ide-ui

  1. private boolean isRowRendered(int i, List<Node> visible) {
  2.  Element e = view.getRootContainer(getNodeDescriptor(visible.get(i)));
  3.  return e != null && e.getFirstChild().hasChildNodes();
  4. }

代码示例来源：origin: org.eagle-i/eagle-i-datatools-sweet-gwt

  1. /**
  2.  * Need to do some additional clean up to really clear the list
  3.  */
  4. public void clear() {
  5.   super.clear();
  6.   // remove the option group elements
  7.   Element elm = getElement();
  8.   while (elm.hasChildNodes()) {
  9.     elm.removeChild(elm.getFirstChild());
  10.   }
  11.   
  12.   groupMap.clear();
  13. }

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

  1. /**
  2.   * Update the view data based on the current value.
  3.   *
  4.   * @param parent the parent element
  5.   * @param viewData the {@link ViewData} object to update
  6.   * @param isEditing true if in edit mode
  7.   * @return the new value
  8.   */
  9.  private String updateViewData(Element parent, ViewData viewData,
  10.    boolean isEditing) {
  11.   InputElement input = (InputElement) parent.getFirstChild();
  12.   String value = input.getValue();
  13.   viewData.setText(value);
  14.   viewData.setEditing(isEditing);
  15.   return value;
  16.  }
  17. }

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

  1. @Override
  2. public void onBrowserEvent(Context context, Element parent, String value,
  3.   NativeEvent event, ValueUpdater<String> valueUpdater) {
  4.  super.onBrowserEvent(context, parent, value, event, valueUpdater);
  5.  String type = event.getType();
  6.  if (BrowserEvents.CHANGE.equals(type)) {
  7.   Object key = context.getKey();
  8.   SelectElement select = parent.getFirstChild().cast();
  9.   String newValue = options.get(select.getSelectedIndex());
  10.   setViewData(key, newValue);
  11.   finishEditing(parent, newValue, key, valueUpdater);
  12.   if (valueUpdater != null) {
  13.    valueUpdater.update(newValue);
  14.   }
  15.  }
  16. }

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

  1. @Override
  2. public void onBrowserEvent(Context context, Element parent, String value,
  3.   NativeEvent event, ValueUpdater<String> valueUpdater) {
  4.  super.onBrowserEvent(context, parent, value, event, valueUpdater);
  5.  String type = event.getType();
  6.  if (BrowserEvents.CHANGE.equals(type)) {
  7.   Object key = context.getKey();
  8.   SelectElement select = parent.getFirstChild().cast();
  9.   String newValue = options.get(select.getSelectedIndex());
  10.   setViewData(key, newValue);
  11.   finishEditing(parent, newValue, key, valueUpdater);
  12.   if (valueUpdater != null) {
  13.    valueUpdater.update(newValue);
  14.   }
  15.  }
  16. }

代码示例来源：origin: com.extjs/gxt

  1. /**
  2.  * Returns the grid's &lt;TD> HtmlElement at the specified coordinates.
  3.  * 
  4.  * @param row the row index in which to find the cell
  5.  * @param col the column index of the cell
  6.  * @return the &lt;TD> at the specified coordinates
  7.  */
  8. public Element getCell(int row, int col) {
  9.  // ROW DIV TABLE TR TD
  10.  Element rowEl = getRow(row);
  11.  return (Element) ((rowEl != null && rowEl.hasChildNodes())
  12.    ? rowEl.getFirstChild().getFirstChild().getFirstChild().getChildNodes().getItem(col) : null);
  13. }

代码示例来源：origin: com.extjs/gxt

  1. private void updateGroupWidths() {
  2.  if (!enableGrouping || ds.getCount() < 1) {
  3.   return;
  4.  }
  5.  String tw = Math.max(cm.getTotalWidth(), el.dom.getOffsetWidth() - getScrollAdjust()) + "px";
  6.  NodeList<Element> gs = getGroups();
  7.  for (int i = 0, len = gs.getLength(); i < len; i++) {
  8.   Element e = gs.getItem(i).getFirstChild().cast();
  9.   e.getStyle().setProperty("width", tw);
  10.  }
  11. }

代码示例来源：origin: org.n52.sensorweb/sensorwebclient-ui

  1. public static void continueStartup() {
  2.   // init handlers before throwing events
  3.   SosDataManager.getDataManager();
  4.   new SOSController();
  5.   if (ClientUtils.isSesEnabled()) {
  6.     new SesController();
  7.   }
  8.   View.getView();
  9.   Element element = Document.get().getElementById("loadingWrapper");
  10.   while (element.hasChildNodes()) {
  11.     element.removeChild(element.getFirstChild());
  12.   }
  13.   Application.finishStartup();
  14. }

代码示例来源：origin: SwellRT/swellrt

  1. protected void assertStructure(ContentElement e,
  2.   ContentElement parent, ContentNode prev, ContentNode next,
  3.   ContentNode first, ContentNode last) {
  4.  assertStructure(e, parent, prev, next);
  5.  assertSame(first, c.getFirstChild(e));
  6.  assertSame(last, c.getLastChild(e));
  7.  assertSame(first == null ? null : first.getImplNodelet(), e.getImplNodelet().getFirstChild());
  8.  assertSame(last == null ? null : last.getImplNodelet(), e.getImplNodelet().getLastChild());
  9. }

代码示例来源：origin: apache/incubator-wave

  1. protected void assertStructure(ContentElement e,
  2.   ContentElement parent, ContentNode prev, ContentNode next,
  3.   ContentNode first, ContentNode last) {
  4.  assertStructure(e, parent, prev, next);
  5.  assertSame(first, c.getFirstChild(e));
  6.  assertSame(last, c.getLastChild(e));
  7.  assertSame(first == null ? null : first.getImplNodelet(), e.getImplNodelet().getFirstChild());
  8.  assertSame(last == null ? null : last.getImplNodelet(), e.getImplNodelet().getLastChild());
  9. }

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