radiowrapper.js

来自「这是一个关于java的JSP页面中使用象Swing组件的一个库文件.」· JavaScript 代码 · 共 41 行

function uiHtml_RadioWrapper() {
  this._super();
}
uiHtml_RadioWrapper =
    uiUtil_Object.declareSingleton(uiHtml_RadioWrapper, uiHtml_ElementWrapper);
uiHtml_RadioWrapper.__selectedRadio = new Array();
uiHtml_RadioWrapper.prototype.appendEventHandler = function(domRadio, event, handler) {
  var isOpera = uiHtml_Window.getInstance().isOpera();
  var isIe = uiHtml_Window.getInstance().isIe();
  if (event == "change" && (isOpera || isIe)) {
    if (domRadio.checked) {
      uiHtml_RadioWrapper.__selectedRadio[domRadio.name] = domRadio;
    }
    var wrapper = this;
    return this._callSuper(
        "appendEventHandler", domRadio, "click", function(e) {
      var previouslySelected =
          uiHtml_RadioWrapper.__selectedRadio[domRadio.name];
      if (previouslySelected != domRadio) {
        handler();
        uiHtml_RadioWrapper.__selectedRadio[domRadio.name] = domRadio;
      }
    });
  }
  else {
    return this._callSuper("appendEventHandler", domRadio, event, handler);
  }
};
uiHtml_RadioWrapper.prototype.isSelected = function(domRadio) {
  return domRadio.checked;
};
uiHtml_RadioWrapper.prototype.setSelected = function(domRadio, value, optDomEvent) {
  if (domRadio.checked != value) {
    domRadio.checked = value;
    this.executeAggregateEventHandler(domRadio, "change", optDomEvent);
  }
};
uiHtml_RadioWrapper.prototype.getLogicalValue = function(domElement) {
  return (this.isSelected(domElement))? domElement.value : null;
};