357 Lotus blogs updated hourly. Who will post next? Home | Downloads | Events | Pods | Blogs | Search | myPL | About 
 
Latest 7 Posts
Going to MWLUG 2014? You need to buy these guys a beer as well….
Sun, Aug 24th 2014 156
Going to MWLUG 2014? Buy Dave Leedy a beer
Sun, Aug 24th 2014 334
Chart Directives and Dynamic Binding – MWLUG 2014 preview
Wed, Aug 20th 2014 189
Accessing the original element when using Select2-focus
Sun, Aug 17th 2014 145
Angular in XPages #8 – Directives (did someone say plugins?)
Sun, Aug 10th 2014 172
Working on my MWLUG2014 presentation
Wed, Aug 6th 2014 201
Angular.js in XPages #7 – Writing better code using Services
Sun, Aug 3rd 2014 318
Top 10
Arguably the most dangerous thing you could ever do in XPages – let other people use your eval() in their SSJS
Tue, Jun 18th 2013 1236
Why learning JavaScript is more critical to XPage developers than Java
Wed, Mar 26th 2014 987
An open letter to Mr. NotesIn9
Wed, Apr 2nd 2014 655
Adding custom HTTP headers to Domino R9 using IBM HTTP Server (IHS)
Sun, Apr 20th 2014 613
Angular.js in XPages #1 – Using the right IDE for development
Sun, Apr 27th 2014 552
EXTJS in XPages #14 – Grid editing and saving data via REST CRUD
Thu, Aug 1st 2013 551
EXTJS in XPages #13: Totaling your columns with a groupingSummary
Sun, Jun 30th 2013 544
WebSockets comes to XPages!! Awesome – Awesome – Awesome
Tue, May 20th 2014 540
And the gloves are off……
Mon, Mar 31st 2014 533
Why using XPages Partial Refresh is sometimes easy for developers and bad for users
Tue, Mar 4th 2014 520


Dynamically Expanding XPage viewPanel Rows on mouseover
MarkyRoden    

In this article I will demonstrate a technique for dynamically expanding and contracting viewPanel rows. This provides a nice clean interface for the user and allows content to be made visible as necessary. This article also highlights many of the core jQuery capabilities.

Problem

When moving from a notes client application to the web often times view columns can be large and unwieldy

A boring notes view

A boring notes view

Unwieldy data view on an XPage

Unwieldy data view on an XPage

Solution

What we are going to do is not only neaten up the display but provide some simple user interactivity to allow access to data as needed. Here is a quick video of the capability in action.

Demonstration

You can see a working example of the capability on the xomino site. In Firefox and Chrome the fade effect look just fine but due to issues with alpha filters fade does not work consistently in IE.

How does it work?

As you can see from the pictures above, once we put our view into an xPage and display it on the web, the entire contents of the data field are displayed on the page. This can make for an irritating session with customer who don’t want to have to scroll page after page to find their information but want the same view to be available through the notes client.

Once solution would be to determine the medium through which your data is being viewed and truncate it accordingly. But I went another route and made a compromise where the data is available if the users wants it (adding functionality to the page without them having to click and open the document) but does not take up a large amount of space.

I added jQuery and jQueryUI (CSS not code) to my database through the WebContent folder and to my XPage like this

	<xp:this.resources>
		<xp:script src="js/jquery-1.7.2.min.js" clientSide="true"></xp:script>
		<xp:styleSheet
			href="css/custom-theme/jquery-ui-1.8.19.custom.css">
		</xp:styleSheet>
	</xp:this.resources>

I started out by creating a data source of my view and dragging the fields to the XPage, creating a viewPanel on the form. I then “fixed” the width of someData column:

		<xp:viewColumn columnName="somedata" id="viewColumn4">
			<xp:this.facets>
				<xp:viewColumnHeader value="Somedata" xp:key="header" style="width:300px"
					id="viewColumnHeader4">
				</xp:viewColumnHeader>
			</xp:this.facets>
		</xp:viewColumn>

I then created a scriptblock on the XPage after the viewPanel (controls > other > core controls >scriptblock). Within all Properties > data > value I added the following code….

			 $("#[id$='viewPanel1'] tr td:nth-child(4)").each(function (i) {
			 	if ($(this).innerHeight()>=100){
				 	$(this).append('<span class="ui-icon ui-icon-arrowthick-1-s"></span>').children(":first").wrap('<div class="wrapper" />')
			 	}
		    });

and that on its own made quite a difference….

modified viewPanel

modified viewPanel

This is what the jQuery code just did

  • Select all the 4th column Table cells in the viewPanel and cycle through each of them

 //select all elements (one in this case) where the id ends with (id$=) viewPanel1
 //within that select all rows (tr)
 //within that select all the table cells (td)
 //within that select only the cells which are the 4th child element (:nth-child(4))
 //cycle through each of them (.each(function(i)) where i is the nth item in the cycle
 $("#[id$='viewPanel1'] tr td:nth-child(4)").each(function (i)

  • Because we have fixed the column width we are able to accurately ascertain the height of the cell contents on the page
  • As we then cycle through the viewPanel TD cells we determine if the cell contents are larger than 100pixels. If they are then we surround the contents with a wrapper with a fixed height.

 //$(this) means each jQuery object (representing the TD as we cycle through the column
 //.append is as it sounds - append to the end this SPAN (with the arrow in it)
 //.children(:first) selects the first SPAN within the TD we are working on and
 //.wrap means surround the SPAN with the DIV
	$(this).append('<span class="ui-icon ui-icon-arrowthick-1-s"></span>').children(":first").wrap('<div class="wrapper" />')

ok trying to visualize what is going on we start with something which looks like this

<td>
  <span #1>
  </span>
</td>

We .append() another span

<td>
  <span #1>
  </span>
  <span #2>
  </span>
</td>

We then .wrap() the :first Child of the TD with a Div

<td>
  <div>
    <span #1>
    </span>
  </div>
  <span #2>
  </span>
</td>

And this is what we have made (looking at it through FireFox FireBug

The new Table Cell viewed in Firebug

The new Table Cell viewed in Firebug

You have to admire the ability to “chain” jQuery objects and methods together :)

Styling the wrapper

We add the following stylesheet to the XPage to ensure that the DIV .wrapper class keeps the display in check

	<style>
		.wrapper {
			height: 50px;
			overflow: hidden;
			padding-bottom: 5px;
		}
	</style>

Animating the Table Rows

So once we now have our reformatted table rows they look better but anything over 50px cannot be “read” as it is hidden.

What we are going to do is add an mouseenter and mouseleave event to the DIV class=wrapper we just added inside our table cell.

Here’s the breakdown in English and the code beneath it

on mouse enter

  • Select all table rows which are NOT the one we are currently over
    • Fade the whole row to 20%
  • Get the SPAN next in the DOM below the wrapper DIV (the one with the down arrow in it)
    • Toggle OFF the down arrow class (ui-icon-arrowthick-1-s)
    • Toggle ON the up arrow class (ui-icon-arrowthick-1-n)
  • Animate the height of the TD to match the height of the .wrapper

on mouse leave

  • Select all table rows which are NOT the one we are currently over
    • Fade the whole row back to 100%
  • Get the SPAN next in the DOM below the wrapper DIV (the one with the up arrow in it)
    • Toggle ON  arrow class (ui-icon-arrowthick-1-s)
    • Toggle OFF the up arrow class (ui-icon-arrowthick-1-n)
  • Animate the height of the TD to match the initial height of the .wrapper

			initHeight = $('.wrapper').height();

		    $('.wrapper').bind('mouseenter', function() {
		        $("#[id$='viewPanel1'] TR:gt(0)").not($(this).closest('tr')).stop(true, true).fadeTo('normal', 0.2);
		        $(this).closest('Div').next('span').toggleClass('ui-icon-arrowthick-1-n').toggleClass('ui-icon-arrowthick-1-s')
		        $(this).stop(true, true).animate({
		            height: this.scrollHeight
		        });
		    });
		    $('.wrapper').bind('mouseleave', function() {
		        $("#[id$='viewPanel1'] TR").not($(this).closest('tr')).stop(true, true).fadeTo('normal', 1);
		        $(this).closest('Div').next('span').toggleClass('ui-icon-arrowthick-1-n').toggleClass('ui-icon-arrowthick-1-s')
		        $(this).stop(true, true).animate({
		            height: initHeight
		        });
		    });

In summary

And there you have it. We have looked at a broad range of jQuery capabilities and brought them all together to create a great looking interface for the end user. All these capabilities are part of the jQuery core and I only used jQueryUI to get the cute up and down arrows. If you wanted to use an icon there is nothing stopping you removing the jQueryUI dependency.

We have looked at jQuery Selectors

  • attribute selector $(“#id$=
  • class selector $(‘.wrapper
  • :nth-child
  • :first

We have looked at DOM traversing and manipulation techniques

  • .children()
  • .next()
  • .closest()
  • .not()
  • .append()
  • .wrap()
We have looked at attaching events to DOM elements
  • .bind()
We have looked at object properties
  • .innerHeight()
  • .height()
We have looked at multiple visual manipulation capabilities
  • .fadeTo()
  • .animate()
  • .toggleClass()
  • .stop()

Demonstration

You can see a working example of the capability on the xomino site.




---------------------
http://xomino.com/2012/05/07/dynamically-expanding-xpage-viewpanel-rows-on-mouseover/
May 07, 2012
69 hits



Recent Blog Posts
156


Going to MWLUG 2014? You need to buy these guys a beer as well….
Sun, Aug 24th 2014 8:07p   Mark Roden
—->>>> Richard Moy [read] Keywords:
334


Going to MWLUG 2014? Buy Dave Leedy a beer
Sun, Aug 24th 2014 5:37p   Mark Roden
Yeah I know I have rattled on about this before but it holds as true today as it does any other day before. Here is a list of reasons you should buy Dave Leedy a beer in case you were wondering… 1) really? You need a list?? Shame on you…. 2) NotesIn9 has helped you – One of those videos by Dave, John, John, Brian, Chris, Graham, Jeremy, Mark, Mark, Paul, Peter, Steve, Tim, Chris, Paul, Josh, Dan, Niklas, Michael, Russ, Serdar, Sean, Mark, Brad, Frederick, Steve, Richard, Kathy, [read] Keywords: ibm community
189


Chart Directives and Dynamic Binding – MWLUG 2014 preview
Wed, Aug 20th 2014 7:13p   Mark Roden
Although not directly related to the purpose of the presentation I am going to demonstrate how to use an Angular.js chart directive to bind to the application service data and create dynamic charting within the application. Changing the Zip for 1 Marky not only updates the data displayed – but also because of the data bind – auto-magically updates the chart While this in itself does not directly relate to the write once and run anywhere nature of the presentation – it d [read] Keywords: application
145


Accessing the original element when using Select2-focus
Sun, Aug 17th 2014 7:36p   Mark Roden
In the application we are currently working on I wanted to add an ajax call to a JSON service, but only for certain fields. Rather than go through the application and add the code to every element I used a delegated focus event for the field with an attribute of  “help_fieldName”. The following HTML represents the code on the form: UK US Global First Name Last Name The following jQuery code makes it work. The getHelp function shows/hides [read] Keywords: ajax application xml
172


Angular in XPages #8 – Directives (did someone say plugins?)
Sun, Aug 10th 2014 8:08p   Mark Roden
In this article I will discuss Angular Directives and why they are near and dear to my heart Directives Directives in Angular are modular pieces of functionality which in some cases are very analogous to plugins in jQuery. According to the Angular documentation… “At a high level, directives are markers on a DOM element (such as an attribute, element name, comment or CSS class) that tell AngularJS’s HTML compiler ($compile) to attach a specified behavior to that DOM element or [read] Keywords: xpages application css
201


Working on my MWLUG2014 presentation
Wed, Aug 6th 2014 8:04p   Mark Roden
Just wanted to show a work in progress – screenshots of what I am working on for MWLUG2014. Part of the presentation is showing how to make your Angular applications portable. My sample app will be the one I created as part of the Angular in XPages series. I will walk through the code and demonstrate how I can take this stand alone application and insert it into this bootstrap demo dashboard application creating this fully functional component capability within the dashboard With [read] Keywords: xpages application applications
318


Angular.js in XPages #7 – Writing better code using Services
Sun, Aug 3rd 2014 6:01p   Mark Roden
In this article I will discuss a better programming practice for Angular.js than was demonstrated in the previous articles within this series. I have mentioned before, part of the purpose this blog is very much a “learning in progress” for me. Without going through the previous articles I would not have been able to get to this point and write “better code”. Hopefully with that understanding, those of you who have been along for the ride will appreciate this and grow w [read] Keywords: agent lotusscript xpages application twitter




285


Taking back productivity in Domino Designer (a NotesIn9 production)
Tue, Jul 29th 2014 3:27p   Mark Roden
Yeah it has been a while (over 18 months) since the last time I did a NotesIn9 video but it finally happened again. NotesIn9 149:  Database Resources and Design Definition Doesn’t sound very exciting does it? Dave needs to work on his attention grabbing heading show names. I would have called it something more like this – but then who am I to complain – it is not my show after all ;) NotesIn9 149:  Taking back productivity in Domino Designer  This video revolves around som [read] Keywords: domino notes xpages database eclipse
248


The consummate Champion
Thu, Jul 24th 2014 8:42p   Mark Roden
As Russ Maher said today in Hey Who got the Handsome Champion it is an honor and a privilege to not only be recognized by IBM as a Champion for ICS 2014, but you also get some very cool stuff. Thanks to Amanda Bauman and Oliver Heinz for organizing “the champions” and all the gear. I just wonder what I am going to do with all of it :) Seriously though, I am very humbled to be an IBM Champion ! Thank you to everyone who nominated me and made this possible :) [read] Keywords: ibm
236


Web Components – Entering the ShadowDOM….
Wed, Jul 9th 2014 9:18p   Mark Roden
Web Components – the future You should first ground yourself on Web Components and read this article on Web Components and concepts, ShadowDOM, imports, templates, custom elements by Todd Motto. Then listen to this Podcast (thanks to Steve for pointing it out) - Web Components with Peter Gasston Once you have read/listened you will have some idea and concept about Web Components and how they are the future….. But what I wanted to show briefly was how to enable the ShadowDOM in C [read] Keywords: agent javascript podcast




Created and Maintained by Yancy Lent - About - Blog Submission - Suggestions - Change Log - Blog Widget - Advertising - Mobile Edition