Apply ActionListener to programmatically created buttons/link in ADF

This post is next in series of "Working with ADF Faces Components programmatically"
Previous posts are-
Creating dynamic layout (form and UI Component) using ADF Faces
Get Value from programmatically created components , Iterate over parent component to get child values in ADF Faces

Now this post is about applying ActionListener to a programmatically created button or link
Let's start (Jdev 12.13) -

• First created a FusionWebApplication and a page in viewController project
• Dropped a button on page , on this button action i will create a link programmatically and assign actionListener to it
• To create new link i have added following code (described in previous posts)





    /**Method to add dynamically created component to a parent layout
     * @param parentUIComponent
     * @param childUIComponent
     */
    public void addComponent(UIComponent parentUIComponent, UIComponent childUIComponent) {
        parentUIComponent.getChildren().add(childUIComponent);
        AdfFacesContext.getCurrentInstance().addPartialTarget(parentUIComponent);
    }




       //Creating Link programmatically on button click     
        RichLink ui = new RichLink();
        ui.setId("li1");
        ui.setText("Programmatically Created Link");
        ui.setInlineStyle("font-weight:bold;");
        //Add this link to parent form layout
 //ParentGroupLayoutBind is the component binding of panelGroupLayout
        addComponent(getParentGroupLayoutBind(), ui);



• After this we are able to create a new Link on click of button, now next is to assign ActionListener to this Link
  For this first i have to define an ActionListener method in bean. So i have added this 



    /**Action Listener to be applied on dynamically created button
     * @param actionEvent
     */
    public void actionForProgLink(ActionEvent actionEvent) {
        FacesMessage infoMsg = new FacesMessage("Action Listener Invoked");
        infoMsg.setSeverity(FacesMessage.SEVERITY_INFO);
        FacesContext.getCurrentInstance().addMessage(null, infoMsg);
    }



• Now how to assign this ActionListener to that dynamically created Link?
  See the Code-



    /**Method to to resolve actionListener
     * @param actionName
     */
    private ActionListener getActionListener(String actionName) {
        //here Testbean is the name of ManagedBean
        MethodExpression methodExp = getMethodExpressionForAction("#{viewScope.Testbean." + actionName + "}");
        return new MethodExpressionActionListener(methodExp);
    }


Helper method to resolve ActionListener-

    private MethodExpression getMethodExpressionForAction(String actionName) {
        Class[] argtypes = new Class[1];
        argtypes[0] = ActionEvent.class;

        FacesContext facesCtx = FacesContext.getCurrentInstance();
        Application app = facesCtx.getApplication();
        ExpressionFactory elFactory = app.getExpressionFactory();
        ELContext elContext = facesCtx.getELContext();
        return elFactory.createMethodExpression(elContext, actionName, null, argtypes);
    }


Just pass the name of method to resolve it

   //Apply ActionListener on this dynamically created link 

    ui.addActionListener(getActionListener("actionForProgLink")); 

Now time to check , run application :)
First a button appears-

On click of this button a link is created -

Click on this link- programmatically assigned Action Listener is called

Cheers , Happy Learning :)

ADF Skinning : Change color and style of af:query buttons in ADF Faces (Jdev 12.1.3)

Hello All,

This is another post about ADF Skinning , in this post i am going to show you that how can we change button's style in af:query component
Actually this is very easy , if we define some styles for af:button component in our css file then it will be applicable on af:query's buttons (Search, Reset, Advanced, Save etc) too

Suppose i have defined this in css file

af|button{
    color:navy;
    font-weight:bold;
}

Now it will change color of all buttons of application including af:query
See this snap after applying this skin

But if you have a requirement to use different style in af:query buttons or you don't want to change color of all buttons
Then it is not that much easy as it seems ☺

There is a selector to style buttons of af:query - af|query::button 
But this works only if buttons are af:commandButton not af:button
See from docs-

af|query::button Styles the buttons of the query component. Note that this skin selector is only present when the skin selector -tr-button-type is set to 'old', and the query buttons are rendered as af:commandButtons. When the -tr-button-type is set to 'unified', the query buttons are rendered as af:buttons and have the default stylings for af:button applied, so that query buttons have the same look and feel as all other buttons. Tip: If you skin this selector's background-image, you may also want to skin it for :hover, :active, :focus. The :disabled state is currently not supported. Please note that for buttons :active and :focus pseudo-classes do not work in IE7. IE7 also does not allow disabled buttons to be styled. It is recommended that you use the .AFButton*:alias selectors as a shortcut to skin all button components the same.

So for this first i have to change -tr-button-type selector to old so that i can use af|query::button
Now see the css

af|query {
    -tr-button-type: old;
}
 af|query::button {
    color: red;
    font-weight:bold;
}

 af|query::button:hover {
    color: Orange;
    font-weight:bold;
}

 af|query::button:focus {
    color: maroon;
    font-weight:bold;
}

af|button{
    color:navy;
    font-weight:bold;
}

Check the output-

To use specific style for af:query you can create styleClass in css file and put this in styleClass property of af:query
Suppose i have two af:query components on page and i want to use different style for both
For this i have define two different styleClass in css file like this-

af|query {
    -tr-button-type: old;
}
 .mystyle1 af|query::button {
    color: red;
    font-weight:bold;
}

.mystyle2 af|query::button {
    color: darkgreen;
    font-weight:bold;
}

and on page put myStyle1 in styleClass property of first af:query component and myStyle2 in second af:query
See how it looks now -

Cheers, Happy Learning  ☺

Invoke button action (ActionEvent) and value change listener using JavaScript- Oracle ADF

This is another post about using JavaScript in ADF Faces, So again nothing complicated just simple things but needed often
In this post i am covering two simple requirements , using Jdeveloper 11.1.2.4 (11g Release2)

1. How to call button action (ActionEvent) using JavaScript
2. How to call valueChangeListener of a component using JavaScript

 

Call button action using JavaScript-

So for this just drop a commandButton and an inputText on page and create a ActionListener in managed bean for button

Code in managed bean for ActionEvent-

    /**Action Listener for Button
     * @param actionEvent
     */
    public void buttonAction(ActionEvent actionEvent) {
        FacesMessage msg = new FacesMessage("Button Action called");
        FacesContext context = FacesContext.getCurrentInstance();
        context.addMessage(null, msg);
    }

Now requirement is to call this button action on double click event of mouse in inputText
To handle ActionEvent in JavaScript, framework provides a class AdfActionEvent , it has a method to queue ActionEvent from a component. So here i use same method to call ActionEvent

See JavaScript function-

function callButtonAction() {
                  //Method to get component using id (here button is top container)
                  var button = AdfPage.PAGE.findComponentByAbsoluteId('cb1');
                  //Method to queue ActionEvent from component
                  AdfActionEvent.queue(button, button.getPartialSubmit());
              }

and call it using af:clientListener under af:inputText-

Run page and check on double click of mouse in inputText-

Call ValueChangeListener using JavaScript-

This is also same as pervious one, created a valueChangeListener in managed bean for input text and requirement is to call this listener on mouse hover of button

Code in managed bean for ValueChangeListener-

    /**ValueChangeListener for inputText
     * @param valueChangeEvent
     */
    public void inputTextVCE(ValueChangeEvent valueChangeEvent) {
        FacesMessage msg = new FacesMessage("Value Change Lestener called");
        FacesContext context = FacesContext.getCurrentInstance();
        context.addMessage(null, msg);
    }

There is a class to handle valueChange event using JavaScript - AdfValueChangeEvent
So this class also has a queue method , the difference is this queue method takes 4 parameters and also requires a value change event on component
So first step is to change (set) value of field using JavaScript and then queue valueChangeEvent

See JavaScript function-

 function callValueChangeEvent(evt) {
                  //Method to get component using id (here inputText is top container)
                  var field = AdfPage.PAGE.findComponentByAbsoluteId('it1');
                  //Change(set) field's value
                  field.setValue('I am JavaScript text');
                  //Get New changed value
                  var newVal = field.getValue();
                  //Queue ValueChangeEvent (component,oldValue,newValue,autoSubmit)
                  AdfValueChangeEvent.queue(field, null, newVal, false);

              }

make sure that clientComponent and autoSubmit property of inputText set to true
call this javascript fucntion from button using af:clientListener

Run page and check it-

Thanks, Happy Learning

Customize af:button (font, shape, size, color etc) using skinning -Oracle ADF (12.1.3)

Hello all
this post is about styling af:button component in ADF 12.1.3
how can we customize a button , change it's color, background color, shape ,size, font and many more
In 12.1.3 Jdeveloper, some features are supported like width of button directly from inline style property (this was not supported in 11g)

you can see new features for client side css- http://www.oracle.com/technetwork/developer-tools/jdev/documentation/1213nf-2222743.html

So let's start
I hope everyone know how to create css (skin) file in jdeveloper , if don't then follow this

Right click on viewController project → New from Gallery → Categories → Web Tier → JSF/Facelets → ADF Skin



Dropped 3 buttons on page, third one is disabled

Changing button properties (width, font, color for different client event) -

I think no description needed as tags are self-descriptive

af|button {
    width: 150px;
    text-align: center;
    vertical-align: bottom;
    color: blue;
    border: skyblue 2.0px solid;
    font-style: italic;
    font-family: cursive;
}

Output-

Now change background color - to do this we have to use af|button::link  selector

af|button::link {
    border: skyblue 2.0px solid;
    background-color: #feffd5;
}

Output-

In same way we can change button behavior for hover, disabled and depressed client event

Hover event-

af|button:hover::link {
    background-color: #c7660b;
    border: skyblue 2.0px solid;
    color: White;
}

af|button:disabled::link {
      background-color: Gray;
    border: skyblue 2.0px solid;
    color: White;
}

Output- (hover on first button)

Depressed event- (Select )
 

af|button:depressed::link {
    background-color: maroon;
    border: skyblue 2.0px solid;
    color: White;
}

Changing shape of button-

1.Rounded corner (oval shape)
just change af|button and af|button::link selectors

af|button {
    width: 150px;
    text-align: center;
    vertical-align: bottom;
    color: blue;
    border: skyblue 2.0px solid;
    font-style: italic;
    font-family: cursive;
    border-bottom-left-radius: 15px;
    border-bottom-right-radius: 15px;
    border-top-left-radius: 15px;
    border-top-right-radius: 15px;
}

af|button::link {
    border: skyblue 2.0px solid;
    background-color: #feffd5;
    border-bottom-left-radius: 15px;
    border-bottom-right-radius: 15px;
    border-top-left-radius: 15px;
    border-top-right-radius: 15px;
}

Output-

2.Square Button-

af|button {
    text-align: center;
    vertical-align: middle;
    color: blue;
    border: skyblue 2.0px solid;
    font-style: italic;
    font-family: cursive;
    height: 50px;
    width: 50px;
}

af|button::text {
    padding-top: 12px;
}

af|button::link {
    border: skyblue 2.0px solid;
    background-color: #feffd5;
    height: 43px;
}

Output-

2.Round(Circle) Button-

changing shape is nothing just some hit and try in css, see the changes css other selectors remain same

af|button {
    text-align: center;
    vertical-align: middle;
    color: blue;
    border: skyblue 2.0px solid;
    font-style: italic;
    font-family: cursive;
    height: 50px;
    width: 50px;
    border-bottom-left-radius: 5em 5em;
    border-bottom-right-radius: 5em 5em;
    border-top-left-radius: 5em;
    border-top-right-radius: 5em;
}

af|button::text {
    padding-top: 12px;
}

af|button::link {
    border: skyblue 2.0px solid;
    background-color: #feffd5;
    height: 43px;
    border-bottom-left-radius: 5em 5em;
    border-bottom-right-radius: 5em 5em;
    border-top-left-radius: 5em;
    border-top-right-radius: 5em;
}

Output-

So purpose of this post is to give overview of skinning and different selectors, you can try it on any component. Jdeveloper provide built in skin editor for all component , there you can see all selector and pseudo element of a component
Thanks , Happy Learning

Invoking Button Action Programmatically,Queuing ActionEvent

Sometimes we need to invoke any button's action in bean without pressing that button,
as you have to call button action on any component's value change Listener- So how to do this in ADF managed bean.
ADF provides facility to queue action one after another, means you can perform multiple action by queuing 

I am using bounded task flow with page fragments(.jsff)-

• Create a button in page fragment and define ActionListener in managed bean
• Now I have created a input text and its valueChangeListener in managed bean
• I wish to call button' ActionListener in my input text valueChangeListener .





• we can do this by writing this code snippet on valueChangeListener 


public void callAceVCE(ValueChangeEvent vce) {
if (vce.getNewValue() != null) {
//Code to call ActionEvent
FacesContext facesContext = FacesContext.getCurrentInstance();
UIViewRoot root = facesContext.getViewRoot();
/**Pass cb1(buttonId) if page is not in taskflow, else if page is inside region then pass rgionid:buttonId*/
RichCommandButton button = (RichCommandButton)root.findComponent("r1:cb1");
ActionEvent actionEvent = new ActionEvent(button);
actionEvent.queue();
}
}

•  Now run your page and when you will change input text value - button actionListener will be called