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Tutorial - Layout Reorderer 0.5 Migration

Owned by Anastasia Cheetham
Last updated: Sept 29, 2008Version comment
3 min read

This page will walk you through the process of upgrading your existing 0.4 Layout Reorderer implementation to the new 0.5 API. This tutorial assumes that

  • you are already familiar with HTML, Javascript and CSS
  • you are familiar with what the Layout Reorderer is and does
  • you have an existing implementation of the Layout Reorderer that worked with the 0.4 Infusion release.

Dependencies

If you use the Fluid-all.js file, you don't have to change this - this file still contains everything you need.

If, however, you are including independent files, you will need to add three files to your list: FluidDOMUtilities.js, GeometricManager.js and ModuleLayout.js. You also no longer need ui.droppable.js.

If you have...

You will need...

 
jquery/jquery-1.2.6.js
jquery/jquery.keyboard-a11y.js
jquery/ui.core.js
jquery/ui.draggable.js
jquery/ui.droppable.js
jquery/jARIA.js
fluid/Fluid.js
fluid/Reorderer.js

jquery/jquery-1.2.6.js
jquery/jquery.keyboard-a11y.js
jquery/ui.core.js
jquery/ui.draggable.js
jquery/jARIA.js
fluid/Fluid.js
fluid/FluidDOMUtilities.js  <== new!
fluid/GeometricManager.js    <== new!
fluid/Reorderer.js
fluid/ModuleLayout.js        <== new!
On this Page
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Initialization

The signature of the call to reorderLayout() has been significantly simplified:

Old

New

 
fluid.reorderLayout(containerSelector,
                    layoutSelectors,
                    orderChangedCallback,
                    options);

fluid.reorderLayout(container, options);

The specific changes are as follows:

  • the container parameter can now be
    • a CSS-based selector
    • a single-element jQuery object, or
    • a DOM element
  • the itemSelector and orderChangeCallback are now specified through the options paramter

Layout Selectors

Instead of passing selectors identifying the columns and modules as parameters to reorderLayout(), the selectors are specified using the selectors option.

If you used to have...

Now you would have...

 
var layout = {
                columns: "td",
                modules: "td > div"
            };
fluid.reorderLayout("#modules-root", layout);

var opts = {
    selectors: {
        columns: "td",
        modules: "td > div"
    }  
};
fluid.reorderLayout("#modules-root", opts);

Order-changed Callback

Instead of passing an order-changed callback function as a parameter to reorderLayout(), the callback is specified using the events option, in particular the afterMove event.

If you used to have...

Now you would have...

 
var myCallback = function() {
    ...
};
fluid.reorderLayout(myElem, layout, myCallback);

var myCallback = function() {
    ...
};
var options = {
    selectors: {
        columns: "td",
        modules: "td > div"
    },
    events: {
        afterMove: myCallback
    }
};
fluid.reorderLayout(myElem, options);

Options

Other changes have been made to the format of the options object:

cssClassNames

The cssClassNames option has been renamed to styles:

If you used to have...

Now you would have...

 
var myClasses = {
  defaultStyle: "plain",
  selected: "selected",
  dragging: "dragging
};
var opts = {
  cssClassName: myClasses
};
fluid.reorderLayout(jQuery("body > ol:first"), opts);

var myClasses = {
  defaultStyle: "plain",
  selected: "selected",
  dragging: "dragging
};
var opts = {
  styles: myClasses
};
fluid.reorderLayout(jQuery("body > ol:first"), opts);