Question

我正在使用jdeveloper中的adf。我有一个af：inputfile，它使用valuechangelistener来检查文件类型，然后上传到服务器。

我需要在这些过程发生时显示弹出窗口（加载图像）。

我已经尝试了下面的代码，但是弹出窗口总是在流程完成后显示，但它不会隐藏：

这是输入文件代码：

<af:inputFile label="Invoice Document" id="if1" 
                    valueChangeListener="#{invoiceBatchManagedBean.onAddInvoiceDocument}"
                    showRequired="true" required="true" immediate="false"  autoSubmit="true"
                    readOnly="#{pageFlowScope.uploadPageStateViewBean.inReadOnlyState}" />

这是弹出代码：

<f:view>
<af:document id="d1" title="#{ipmPortalResource['supplierInvoice.title']}">
  <af:resource type="javascript" source="../../../../js/pop-up.js"/>
  <af:form id="f1" usesUpload="true">
       <af:popup id="p1" contentDelivery="immediate" clientComponent="true" binding="#{pageFlowScope.InvoiceBatchManagedBean.myGlassPane}">
    <af:dialog id="d2" type="none" title="" closeIconVisible="false"> 
      <af:panelGroupLayout id="pgl1" layout="vertical">
        <af:image source="../../../../images/loading0.png" inlineStyle="width:130px;height:45px;border:none;" id="i3"/>
        <af:image source="../../../../images/loading1.gif" id="i2" inlineStyle="margin-left:42.5px;margin-right:auto;margin-bottom:15px;width:50px;height:50px;border:none;"/>
        <af:outputText value="please wait ..." id="ot11z"/> 
      </af:panelGroupLayout> 
    </af:dialog>
  </af:popup>
....

这是javascript代码：

function enforcePreventUserInput(evt){ 
    var popup = AdfPage.PAGE.findComponentByAbsoluteId('p1');
    if (popup != null){ 
      AdfPage.PAGE.addBusyStateListener(popup,handleBusyState); 
      evt.preventUserInput(); 
    } 
  } 
  //JavaScript call back handler 
  function handleBusyState(evt){ 
    var popup = AdfPage.PAGE.findComponentByAbsoluteId('p1'); 
    if(popup!=null){ 
      if (evt.isBusy()){ 
        popup.show(); 
      } else if (popup.isPopupVisible()) { 
        popup.hide(); 
        AdfPage.PAGE.removeBusyStateListener(popup, handleBusyState); 
      } 
    } 
  }

这是由managedfile中的valuechangelistener调用的函数：

    public void onAddInvoiceDocument(ValueChangeEvent valueChangeEvent) {

this.showPopup(getMyGlassPane());
    try{
        UploadedFile file = (UploadedFile) valueChangeEvent.getNewValue();
        this.onAddDocument(file, INVOICE_DOCUMENT_TYPE,true);
    }catch(Exception ex){
        RichInputFile comp = (RichInputFile) valueChangeEvent.getComponent();
        comp.setValid(false);
        comp.setValue(null);
        JSFUtils.addFacesErrorMessage(ex.getMessage());
    }
    this.hidePopup(getMyGlassPane());
}

    public void showPopup(RichPopup popup) {
    FacesContext fct = FacesContext.getCurrentInstance();
    ExtendedRenderKitService service = Service.getRenderKitService(fct, ExtendedRenderKitService.class);
    service.addScript(fct,"AdfPage.PAGE.findComponent('p1').show();");

}
//method to hide the glass pane component
public void hidePopup(RichPopup popup) {
    FacesContext fct = FacesContext.getCurrentInstance();
    ExtendedRenderKitService service = Service.getRenderKitService(fct,ExtendedRenderKitService.class);
    service.addScript(fct, "AdfPage.PAGE.findComponent('p1').hide();");
}

有人可以帮忙吗？

Answer 1

你做了很长的解释，我无法察觉你的真正问题是什么。但是我认为你想要实现的目标在这里解释：

http://www.oracle.com/technetwork/developer-tools/adf/learnmore/27-long-running-queries-169166.pdf

http://tamanmohamed.blogspot.com/2012/06/adf-how-to-use-afpopup-during-long.html

如何使用inputfile adf上传文件时显示弹出窗口

1 个答案: