Resizable Examples

These examples show how to apply a floating (default) and pinned Resizable component to a standard element.

Note that the js is not minified so it is readable. See basic.js for the full source code.

Basic Example
This is a basic as you get. To resize the box, position your mouse anywhere near the bottom, right or border right edge of the box. This example uses the default "floating" handles.

var basic = new YAHOO.ext.Resizable('basic', {
        width: 200,
        height: 100,
        minWidth:100,
        minHeight:50
});

Wrapped Elements
Some elements such as images and textareas don't allow child elements. In the past, you had to wrap these elements and set up a Resizable with resize child. As of yui-ext .33 RC2, Resizable will wrap the element, calculate adjustments for borders/padding and offset the handles for you. All you have to do is set "wrap:true". The manual way of specifying a "resizeChild" is still supported as well.

Pinned Handles
Notice this example has the resize handles "pinned". This is done by setting "pinned:true".

Dynamic Sizing
If you don't like the proxy resizing, you can also turn on dynamic sizing. Just set "dynamic:true".

Here's a textarea that is wrapped, has pinned handles and has dynamic sizing turned on.

var dwrapped = new YAHOO.ext.Resizable('dwrapped', {
    wrap:true,
    pinned:true,
    width:450,
    height:150,
    minWidth:200,
    minHeight: 50,
    dynamic: true
});

Preserve Ratio
For some things like images, you will probably want to preserve the ratio of width to height. Just set preserveRatio:true.

var wrapped = new YAHOO.ext.Resizable('wrapped', {
    wrap:true,
    pinned:true,
    minWidth:50,
    minHeight: 50,
    preserveRatio: true
});

Transparent Handles
If you just want the element to be resizable without any fancy handles, set transparent to true.

var transparent = new YAHOO.ext.Resizable('transparent', {
    wrap:true,
    minWidth:50,
    minHeight: 50,
    preserveRatio: true,
    transparent:true
});

Customizable Handles
Resizable elements are resizable 8 ways. 8 way resizing for a static positioned element will cause the element to be positioned relative and taken out of the document flow. For resizing which adjusts the x and y of the element, the element should be positioned absolute. You can also control which handles are displayed by setting the "handles" attribute. The handles are styled using CSS so they can be customized to look however you would like them to.

This image has 8 way resizing, custom handles, is draggable and 8 way preserved ratio (that wasn't easy!).
Double click anywhere on the image to hide it when you are done.

var custom = new YAHOO.ext.Resizable('custom', {
    wrap:true,
    pinned:true,
    minWidth:50,
    minHeight: 50,
    preserveRatio: true,
    dynamic:true,
    handles: 'all', // shorthand for 'n s e w ne nw se sw'
    draggable:true
});

Snapping
Resizable also supports basic snapping in increments.

var snap = new YAHOO.ext.Resizable('snap', {
    pinned:true,
    width:250,
    height:100,
    handles: 'e',
    widthIncrement:50,
    minWidth: 50,
    dynamic: true
});

Animated Transitions
Resize operations can also be animated. Animations support configurable easing and duration. Here's a very basic clone of the first element, but with animation turned on. I used a "backIn" easing and made it a little slower than default.

var animated = new YAHOO.ext.Resizable('animated', {
    width: 200,
    height: 100,
    minWidth:100,
    minHeight:50,
    animate:true,
    easing: YAHOO.util.Easing.backIn,
    duration:.6
});