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JSF Menu Component

JSF Menu Component. How to create and use JSF Menu components to add custom static and programmatic (dynamic) menu-ing capabilities to your web application.  JSF Menu Controls.

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JSF Menu Component

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  1. JSF Menu Component How to create and use JSF Menu components to add custom static and programmatic (dynamic) menu-ing capabilities to your web application.

  2.  JSF Menu Controls • You can create a set of menus for pages, with JSF controls – easily and quickly. And even programmatically render/hide individual menu or sub-menu options. • Here’s an example – using the pages we’ve built so far: Let’s do a workshop and create a custom menu. • Start by creating a new web page named: menuPage.jsp • Customize the page header  Replace the code in the JSFHandler with the EGL statements in the Notes (below). Read through the EGL comments (we will be using Boolean variables to hide/show menu options programmatically).

  3.  JSF Menu Controls – Design the Page and Menu  Add an Enhanced Faces Component Menu Bar near the top of the page …This will add the long, thin gray rectangle with the reminder in it seen above. • Click the Properties tab:  Let’s discuss these menu options: • A Request Link is a JSF Request Hyper link (we won’t be using these) • An Output Link – is a direct HTML Link (this what we’ll use for the actual page links) • A Command – adds a command button (kind’a 90’s if you ask us) • A Sub-panel - is a menu category that opens onClick – to show a group of links tied to a category (like a sub-menu) • A Separator – is a thin line that you can use to organize groups of sub-menu options Menu Bar 

  4.  JSF Menu Controls – Design the Page and Menu – Top Menu Options • From the Menu’s Properties, select the Items sub-tab, and - add the to your menu following(see screen capture below) • Sub-Panel – Label: Customer Pages • Sub-Panel – Label: Orders Pages • Separator • Output Link – Label: Registration • Output Link – Label: Login • Separator • Sub-Panel – Label: Miscellaneous • Sub-Panel – Label: Functions

  5.  JSF Menu Controls – Design the Page and Menu – Customers/Orders Menu Options • Click the Customers sub-panel (the 2nd rectangular box from the top). And from Properties/Items, add the following (see screen capture below) • Output Link – Label: All Customers • Output Link – Label: Customer Detail • Click the Orders sub-panel (the 3rd rectangular box from the top). And from Properties/Items, add the following (not shown above) • Output Link – Label: All Orders • Output Link – Label: Order Detail Customers sub-panel  Orders sub-panel 

  6.  JSF Menu Controls – Design the Page and Menu – Miscellaneous Menu Options • Click the Miscellaneous sub-panel (the 4th rectangular box from the top). And from Properties/Items, add the following (see screen capture below) • Output Link – Label: Graph Page • Output Link – Label: Dynamic Selection • Separator • Output Link – Label: Form Controls • Output Link – Label: HTML Controls • Separator • Sub-Panel – Label: Tab Page Miscellaneous sub-panel 

  7.  JSF Menu Controls – Design the Page and Menu – Function Menu Options • Click the Functions sub-panel (the 5th rectangular box from the top). And from Properties/Items, add the following (see screen capture below) • Add Command: showHideOptions Next bind the showHideOptions function to the command button inside of the menu control.

  8.  JSF Menu Controls – Design the Page and Menu – Add Links • Finally, for each of the actual Output links in your menu: • Select the link in the menu • From Properties/hx:outputLinkEx – specify: • <pagename>.faces – example: registration.faces • Run menuPage on the server

  9.  JSF Menu Controls – Programmatically Hiding Menu Options • Recall that there are two boolean variables in the JSFHandler. You can use these to hide/show menu options programmatically. As follows: 1. Select the link you want to hide/show • Select Customer Detail • From Properties/All Attributes view: • For the rendered attribute • Select Compute… • Select the vis – Boolean field 2. Select the Menu Option you want to hide/show • Select Order Pages • From Properties/All Attributes view: • For the rendered attribute • Select Compute… • Select the vis2 – Boolean field

  10.  JSF Menu Controls – Menu Work – Final Steps • Run menuPage on the server • Click the showHide Submit Button When you’re finished: 1. Return to Page Designer, 2. Select the entire Menu control, 3 Change the Orientation to Vertical. 4. Re-run the page.

  11.  Optional JSF Menu Controls – Add a Command Link to the Menu You may wish to have a menu fire off an EGL JSFHandler function that responds to a user-action without necessarily forwarding. Or before forwarding. To do this: • From the EGL JSFHandler, add a function that does some processing, then forwards to the next JSP page (or add any other processing as needed) • Add a Command item to your menu • This will create a new Submit Button and an area for you to add the Command Link • (From the Palette) Add a Command Link into (beside or next to) the Submit Button • (From Properties/All Attributes) Specify the Command link's action • Compute/Select the EGL JSFHandler function to invoke upon click of the Command Link • Delete the Submit button • Test

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