所以我遇到了集成纯JavaScript和primefaces对话框组件的问题。 用户应该获得一个叠加对话框(单个)作为对点击许多动态JavaScript生成的Div元素(多个)的响应。对话框的内容应取决于用户点击的div元素。
模仿问题的简化结构如下:
javascript(谷歌关闭):
// this code is in a loop that creates multiple div elements
// in the page dom structure.
var iconDiv = goog.dom.createDom('div', {
'id': nodeId, // **
'class': 'icondiv',
'style': iconDivStyle // **
}, goog.dom.createDom('img', {
'src': 'layer_icons/unused.png',
'class': 'iconDivImg',
'style': 'width:100% ;position:absolute; height: auto; '
}));
goog.events.listen(iconDiv,goog.events.EventType.CLICK,function (e){
// in an ideal situation, the stringField is set to 'this.id' here ...
dlg1.show();
});
//** these are the code lines that mark the difference between the
// divs created in the loop.
primefaces对话框:
这是用户点击任何图标时显示的对话框组件 在上面的javascript中创建。
<p:dialog id="DialogId" dynamic="true" widgetVar="dlg1">
<h:form id="formId">
<p:outputLabel id="clickedOnDiv_Id" value=" #{managedBean.stringField}"/>
<p:outputLabel id="somePropertyOfThisDiv_Id" value="#{managedBean.stringFieldSetByMethod}"/>
</h:form>
</p:dialog>
Managed Bean:
class managedBean {
private String stringField ; // getter and setter
private String stringFieldSetByMethod ; // getter and setter
public void method(){
// uses the stringField in some way to set 'stringFieldSetByMethod' ...
}
}
以上是我想要实现的目标,如果你已经想出实现它的方法,请指教。
接下来是我到目前为止所尝试的内容:
我添加了以下javascript函数:
populateDialog = function(divId){
document.getElementById('formId:hiddenInput').value = divId;
document.getElementById('formId:hdnBtn').click();
}
所以onClick事件处理程序更改为以下内容:
goog.events.listen(iconDiv,goog.events.EventType.CLICK,function (e){
divId = this.id; // where divId is a variable accessible to populateDialog()
dlg1.show();
}); // this is inside a loop, so it is set for each created div
然后我将populateDialog()添加为对话框的OnShow回调并将其更改为:
<p:dialog id="DialogId" dynamic="true" widgetVar="dlg1" onShow="populateDialog();">
<h:form id="formId">
<h:inputHidden id="hiddenInput" value="#{nodesBean.stringField}" />
<p:commandButton id="hdnBtn" ajax="true" actionListener="#{managedBean.method()}" style="display: none;" update=":formId"/>
<p:outputLabel id="clickedOnDiv_Id" value="#{managedBean.stringField}"/>
<p:outputLabel id="somePropertyOfThisDiv_Id" value="#{managedBean.stringFieldSetByMethod}"/>
</h:form>
</p:dialog>
结果是从不调用managedBean.method,加载对话框时所有字段都为空,我可以按照进度 在调用populateDialog()之前的JavaScript,divId是正确的,我没有得到JavaScript错误。然而,服务器是完全无能为力的 关于我正在做的所有客户端的驼峰和跳跃,对真正发生的事情的解释将非常感激。
提前致谢!
答案 0 :(得分:2)
所以解决方案正在使用:
对话框中的:
`<h:inputHidden id="hiddenInput" value="#{nodesBean.stringField}" />
<p:remoteCommand name="remoteCommandFunction" process="hiddenInput" update=":formId"/>`
在onclick处理程序中(每个动态创建的div)
goog.events.listen(iconDiv,goog.events.EventType.CLICK,function (e){
divId = this.id; // where divId is a variable accessible to populateDialog()
dlg1.show();
}); // this is inside a loop, so it is set for each created div
javascript函数称为对话框onshow回调:
populateDialog = function(divId){
document.getElementById('formId:hiddenInput').value = divId;
remoteCommandFunction(); // this is cool cause it solves my problem, not cool cause you really have to know what you're looking for in the documentation to find it >:-/
}
最后,在托管bean中:
class managedBean {
private String stringField ; // getter and setter
private String stringFieldSetByMethod ; // getter and setter
public void setStringField(String sf){
this.stringField = sf;
method();
}
public void method(){
// uses the stringField in some way to set 'stringFieldSetByMethod' ...
}
}