document.js

这是一个关于java的JSP页面中使用象Swing组件的一个库文件.

function uiHtml_Document() {
  this._super(document.body);
  this.__printStream = null;
  this.__scrollSupporter =
      new uiHtml_ScrollSupporter(document.documentElement);
  this.__eventSupporter = uiHtml_Element.createElementByType(document);
}
uiHtml_Document = uiUtil_Object.declareSingleton(uiHtml_Document, uiHtml_Element);
uiHtml_Document.prototype.getDomObjectById = function(id, optAssert) {
  var domObject = document.getElementById(id);
  if (uiUtil_Type.getBoolean(optAssert, true) && domObject == null) {
    throw new uiUtil_IllegalArgumentException("Invalid element ID: " + id);
  }
  return domObject;
};
uiHtml_Document.prototype.getDomObjectsByName = function(name, optAssert) {
  var domObjects = document.getElementsByName(name);
  if (uiUtil_Type.getBoolean(optAssert, true) && domObjects[0] == null) {
    throw new uiUtil_IllegalArgumentException("Invalid element name: " + name);
  }
  return domObjects;
};
uiHtml_Document.prototype.__assertLoaded = function(message) {
  if (!uiHtml_Window.isLoaded()) {
    throw new uiUtil_IllegalStateException(message);
  }
};
uiHtml_Document.prototype.__assertLoadedWhenAttachingDomObjectOf = function(tagName) {
  this.__assertLoaded("DOM object " + tagName + " should not be " +
        "attached to document before the window finishes loading");
};
uiHtml_Document.prototype.createDomObject = function(tagName, optAppear) {
  this.__assertLoadedWhenAttachingDomObjectOf(tagName);
  return uiHtml_Document.createDomObject(tagName, optAppear, document.body);
};
uiHtml_Document.prototype.prependEventHandler = function(eventName, eventHandler) {
  return this.__eventSupporter.prependEventHandler(eventName, eventHandler);
};
uiHtml_Document.prototype.appendEventHandler = function(eventName, eventHandler) {
  return this.__eventSupporter.appendEventHandler(eventName, eventHandler);
};
uiHtml_Document.prototype.removeEventHandler = function(eventName, startIndex, optCount) {
  this.__eventSupporter.removeEventHandler(eventName, startIndex, optCount);
};
uiHtml_Document.prototype.clearEventHandlerExtension = function(eventName) {
  this.__eventSupporter.clearEventHandlerExtension(eventName);
};
uiHtml_Document.prototype.getPrintStream = function() {
  if (this.__printStream == null) {
    this.__assertLoaded(
        "Cannot get print stream before the window finishes loading");
    this.__printStream = new uiHtml_PrintSupporter(this.getDomObject());
  }
  return this.__printStream;
};
uiHtml_Document.prototype.scrollToTop = function() {
  this.__scrollSupporter.scrollToTop();
};
uiHtml_Document.prototype.scrollToBottom = function() {
  this.__scrollSupporter.scrollToBottom();
};
uiHtml_Document.prototype.getScrollLeft = function() {
  return this.__scrollSupporter.getScrollLeft();
};
uiHtml_Document.prototype.getScrollTop = function() {
  return this.__scrollSupporter.getScrollTop();
};
uiHtml_Document.createDomObject = function(tagName, optAppear, optParent) {
  var domObject = document.createElement(tagName);
  uiHtml_Element._initializeDomObject(domObject, optAppear);
  if (uiUtil_Type.isDefined(optParent)) {
    optParent.appendChild(domObject);
  }  
  return domObject;
};
uiHtml_Document.createTextNode = function(initialText, optParent) {
  var domTextNode = document.createTextNode(initialText);
  if (uiUtil_Type.isDefined(optParent)) {
    optParent.appendChild(domTextNode);
  }  
  return domTextNode;
};