I would like to build a new component on the basis of PrimeFaces Tab/Tabview components. It should look like an add tab in a browser and open a page for filling out a form. The problem is that I want to integrate it in a TabView based on a data model (http://www.primefaces.org/showcase/ui/tabviewModel.jsf). Right now I can either combine a tab for filling out a form with a tab with predefined data or use a TabView, which dynamically creates tabs for my data.
I have read JSF documentation about creating custom components in two ways - as composite component or as a new Java class. I tried to create a custom component but it does not seem to work the way I described beyond.
My questions are:
1) is it possible to solve this problem with a composite component? If yes, could someone give me a hint?
2) if not, is there a tutorial for writing a new component on the basis of existing PrimeFaces component (presumably new sort of TabView)?
UPD: After doing some research I realized that the easiest way is writing a new renderer for TabView.
I declared a new renderer class:
public class AddableTabViewRenderer extends TabViewRenderer
and registered it in faces-config.xml:
<render-kit>
<render-kit-id>HTML_BASIC</render-kit-id>
<renderer>
<component-family>org.primefaces.component</component-family>
<renderer-type>org.primefaces.component.TabView</renderer-type>
<renderer-class>
de.idealo.evaluation.jsf.webapp.component.AddableTabViewRenderer
</renderer-class>
</renderer>
</render-kit>
However, when a view with TabView component is rendered, the encodeEnd method of TabViewRenderer is called, not the overriden method of AddableTabViewRenderer.
Can you give me a hint about where the problem might be?
The renderer-class is wrong in my configuration. I misunderstood the instructions about registering a component. I thought that render-type is the class that will be rendered with the custom renderer. It must be org.primefaces.component.TabViewRenderer instead. Now it works fine :)
Related
I have my custom decorator like from the tutorial which adds HTML code to a page.
But if HTML code contains my custom component it will not be processed by AngularDart.
How can I add a processed component from a decorator?
Components can't be added dynamically. Instead, use ng-hide with a bool value to toggle it.
Then you can use your decorator to update the value upon your needs.
The following question asks "How to query the shadowDOM in an Angular component test", but I don't want to achieve this in a unit testing context, but the actual component.
Specifically, I have a component whose template contains a canvas that I would like a reference to.
You can extend ShadowRootAware and override onShadowRoot() to obtain a reference to ShadowRoot, which in turn can be used for querying. (using .querySelector)
Think of the following:
I've got a table data grid webcomponent and another component providing a data feed. In the applications main acting as kind of controller, i'd like to wire and setup those two components. Therefore i need a reference to underlying table grid instance Dart class and call methods on the "Component API' (to provide the table grid's tablemodel with data).
How do I access the Dart Class instance of a webcomponent instance from outside ?
Probably I missed something fundamental or are polymer webcomponents meant to interact only using databinding and stringy attributes stuff ?
Follow up: Found it !!
RLTable table = querySelector("#apptable").xtag;
does the job
As zoechi pointed out, xtag is not necessary.
var component = $['myComp'];
var componentXtag = $['myComp'].xtag;
print(component == componentXtag);
prints true. Therefore both
component.method()
componentXtag.method()
work fine
You don't need xtag. Some weeks/months ago this was a workaround until the final solution was landed.
Is there any example of binding any sort of collection to a TableLayout in android? I keep receiving the message/warning that binding failed for attribute ItemSource LocationQuantities. All of the other bindings to the view model work as normal, but the list doesn't bind to the TableLayout. At first I thought my problem was binding to a dictionary but I was able to bind to a dictionary with other Mvx layouts (listview etcs.)
I can't seem to find in any of the N+ code examples or anywhere else on the web where a TableLayout is actually used in an mvvmcross app. I'm sure I'm just doing something stupid simple wrong here.
<Mvx.MvxTableLayout
p1:id="#+id/PartLocationQtyTable"
p1:layout_width="fill_parent"
p1:layout_height="wrap_content"
p1:layout_below="#id/PartDetailPriceLayout"
p1:padding="5.0dp"
local:MvxBind="ItemSource LocationQuantities"
/>
I've tried the above as well as with a custom template. The above example just uses a list of strings.
Any help would be appreciated
The only obvious problem I can see with your code is that it uses ItemSource whereas all the list-based layouts use ItemsSource - see MvxTableLayout.cs#L89
Beyond that, I guess you'll also want to make sure that your templates for TableLayout are TableRows - so that they can be loaded as rows. Obviously we can't see your item templates currently as you've not included them in the question.
I've got to admit TableLayout isn't something I've ever personally used in a production project - just not something I've yet needed to use.
I am using a third party JSF 2.0 component (the Primefaces 3.0 FileUpload) that defines its own custom event. On the server side, the signature of the handler looks like this:
public void handleFileUpload(FileUploadEvent event)
Problem is, my form is built dynamically and may have dozens of separate FileUpload controls in it, and I need to know WHICH of the fileupload controls generated the event.
Actually, I don't need to know which, I just need the "var" that was in the ui:repeat that caused that particular FileUpload control to be generated. With normal controllers I could have easily just passed in the variable I need, but this 3rd party component happens to use an event handling mechanism rather than a controller, and being rather ignorant of how to work with JSF 2.0 events, I don't know how to get at the POJO, given only the event.
I see that event has a getComponent() method on it that tells me the UIComponent, but after poking around I don't see any easy way to get at the contextual variables, or even a way to generate my own EL expression to evaluate to get at the contextual variables.
So the question boils down to... given only an event, how can I get at the contextual variables in scope for the particular component that was clicked?
Figured it out... I needed to put this inside the 3rd party component
<f:attribute name="myObject" value="#{myObject}"/>
Then it is available in the attributes map of the component on the server side:
final MyOjbect myObject = (MyObject) event.getComponent().getAttributes().get("myObject");