suite.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 uiOptionTransfer_Suite(sourceList, targetList) {
  this._super();
  this.__srcList = sourceList;
  this.__tgtList = targetList;
  this.__srcHandler = this.__srcList.getItemHandler();
  this.__tgtHandler = this.__tgtList.getItemHandler();
  var suite = this;
  this.__srcList.appendEventHandler("dblclick", function(e) {
    suite.__transfer(e, false);
  });
  this.__tgtList.appendEventHandler("dblclick", function(e) {
    suite.__return(e, false);
  });
  var domForm = this.__tgtList.getDomObject().form;
  if (domForm != null) {
    uiHtml_ElementWrapper.getInstance().prependEventHandler(
        domForm, "submit",  function(e) {
      suite.__selectAllTargetItems(e);
    });
  }
  uiOptionTransfer_Suite.syncItems(this.__srcList, this.__tgtList);
}
uiOptionTransfer_Suite =
    uiUtil_Object.declareClass(uiOptionTransfer_Suite, uiUtil_Object);
uiOptionTransfer_Suite.prototype.__selectAllTargetItems = function(domEvent) {
  var listSize = this.__tgtList.size();
  for(var i = 0; i < listSize; i++) {
    this.__tgtHandler.setSelected(this.__tgtList.getItemAt(i), true, domEvent);
  }
};
uiOptionTransfer_Suite.prototype.__transfer = function(domEvent, all) {
  var listSize = this.__srcList.size();
  for(var i = 0; i < listSize; ++i) {
    var item = this.__srcList.getItemAt(i);
    if((all || this.__srcHandler.isSelected(item)) &&
        !this.__srcHandler.isDisabled(item) &&
        this.__find(this.__tgtList, item) < 0) {
      this.__transferItem(domEvent, item);
      if (!this.__srcList.getDomObject().multiple && !all) {
        var nextIndex = i + 1;
        if (nextIndex < listSize) {
          this.__srcList.setSelectedIndex(nextIndex);
        }
        return;
      }
    }
  }
};
uiOptionTransfer_Suite.prototype.__transferItem = function(domEvent, item) {
  var clone = this.__srcHandler.clone(item);
  this.__srcHandler.setDisabled(item, true);
  this.__srcHandler.setSelected(item, false, domEvent);
  this.__tgtList.addItem(clone);
  this.__srcHandler.setSelected(clone, true, domEvent);
};
uiOptionTransfer_Suite.prototype.__find = function(group, needle) {
  var wrapper = uiHtml_SelectOptionWrapper.getInstance();
  var listSize = group.size();
  for(var i = 0; i < listSize; ++i) {
    var item = group.getItemAt(i);
    if(item.value == needle.value && item.text == needle.text) {
      return i;
    }
  }
  return -1;
};
uiOptionTransfer_Suite.prototype.__return = function(domEvent, all) {
  var listSize = this.__tgtList.size();
  for (var i = listSize - 1; i >= 0; --i) {
    var item = this.__tgtList.getItemAt(i);
    if (all || this.__tgtHandler.isSelected(item)) {
      var index = this.__find(this.__srcList, item);
      if(index >= 0) {
        this.__returnItem(domEvent, this.__srcList.getItemAt(index), i);
      }
    }
  }
};
uiOptionTransfer_Suite.prototype.__returnItem = function(domEvent, sourceItem, targetIndex) {
  this.__srcHandler.setDisabled(sourceItem, false);
  this.__srcHandler.setSelected(sourceItem, true, domEvent);
  this.__tgtList.removeItemAt(targetIndex);
};
uiOptionTransfer_Suite.prototype._setTransferTrigger = function(trigger) {
  var suite = this;
  trigger.appendEventHandler("click", function(e) {
    suite.__transfer(e, false);
  });
};
uiOptionTransfer_Suite.prototype._setReturnTrigger = function(trigger) {
  var suite = this;
  trigger.appendEventHandler("click", function(e) {
    suite.__return(e, false);
  });
};
uiOptionTransfer_Suite.prototype._setTransferAllTrigger = function(trigger) {
  var suite = this;
  trigger.appendEventHandler("click", function(e) {
    suite.__transfer(e, true);
  });
};
uiOptionTransfer_Suite.prototype._setReturnAllTrigger = function(trigger) {
  var suite = this;
  trigger.appendEventHandler("click", function(e) {
    suite.__return(e, true);
  });
};
uiOptionTransfer_Suite.syncItems = function(srcList, tgtList) {
  srcList.enableOptionValueMapping();
  var listSize = tgtList.size();
  var srcHandler = srcList.getItemHandler();
  for(var i = 0; i < listSize; ++i) {
    var tgtItem = tgtList.getItemAt(i);
    var srcItem = srcList.getItemByValue(tgtItem.value);
    if (srcItem != null) {
      srcHandler.setDisabled(srcItem, true);
    }
  }
}