selectoptionwrapper.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_SelectOptionWrapper() {
  this._super();
}
uiHtml_SelectOptionWrapper =
    uiUtil_Object.declareSingleton(uiHtml_SelectOptionWrapper, uiHtml_ElementWrapper);
uiHtml_SelectOptionWrapper.__ieDisablingInitialized = false;
uiHtml_SelectOptionWrapper.prototype.isSelected = function(domOption) {
  return domOption.selected;
};
uiHtml_SelectOptionWrapper.prototype.setSelected = function(
    domOption, value, optDomEvent) {
  if (domOption.selected != value) {
    domOption.selected = value;
    var domSelect = domOption.parentNode;
    if (domSelect != null &&
        uiHtml_Element.getWidgetType(domSelect) == "select") {
      this.executeAggregateEventHandler(domSelect, "change", optDomEvent);
    }
  }
};
uiHtml_SelectOptionWrapper.prototype.setDisabled = function(
    domOption, value) {
  domOption.disabled = value;
  if (uiHtml_Window.getInstance().isIe()) {
    var extProps = this.__getOptionExtProps(domOption);
    if (domOption.disabled) {
      if (!uiHtml_SelectOptionWrapper.__ieDisablingInitialized) {
        this.__initializeIeDisabling(domOption);
      }
      extProps.__originalColor = this.getCascadedStyleAttribute(
          domOption, "color");
      this.setStyleAttribute(domOption, "color", "gray");
    }
    else {
      this.setStyleAttribute(domOption, "color", extProps.__originalColor);
    }
  }
}
uiHtml_SelectOptionWrapper.prototype.__initializeIeDisabling = function(domOption) {
  var domSelect = domOption.parentNode;
  if (domSelect != null &&
      uiHtml_Element.getWidgetType(domSelect) == "select") {
    this.appendEventHandler(domSelect, "change", function(e) {
      for (var i = 0; i < domSelect.options.length; ++i) {
        var domOption = domSelect.options[i];
        if (domOption.disabled && domOption.selected) {
          domOption.selected = false;
        }
      }
    });
  }
  uiHtml_SelectOptionWrapper.__ieDisablingInitialized = true;
}
uiHtml_SelectOptionWrapper.prototype.__getOptionExtProps = function(domOption) {
  var extProps = this._getClassProperty(domOption, uiHtml_SelectOptionWrapper);
  if (extProps == null) {
    extProps = new uiHtml_SelectOptionWrapper.DomExtProps();
    this._setClassProperty(domOption, uiHtml_SelectOptionWrapper, extProps);
  }
  return extProps;
}
uiHtml_SelectOptionWrapper.prototype.getLogicalValue = function(domElement) {
  return (this.isSelected(domElement))? domElement.value : null;
};
uiHtml_SelectOptionWrapper.prototype.clone = function(domOption) {
  var newOption = domOption.cloneNode(false);
  newOption.text = domOption.text;
  newOption.selected = domOption.selected;
  newOption.defaultSelected = domOption.defaultSelected;
  return newOption;
};
uiHtml_SelectOptionWrapper.prototype.equals = function(domOption1, domOption2) {
  return domOption1.value == domOption2.value;
};
uiHtml_SelectOptionWrapper.create = function(text, value, optDefaultSelected, optSelected) {
  var domOption = new Option(text, value,
      uiUtil_Type.getBoolean(optDefaultSelected, false),
      uiUtil_Type.getBoolean(optSelected, false));
  return domOption;
};
function uiHtml_SelectOptionWrapper$DomExtProps() {
  this.__originalColor = "black";
}
uiHtml_SelectOptionWrapper.DomExtProps = uiUtil_Object.declareClass(
    uiHtml_SelectOptionWrapper$DomExtProps, uiUtil_Object);