/**
* DOM
*
* Dom manipulation module
*/
(function (undefined){
"use strict";
var d;
//Private function for getting/setting attributes/properties
function _attr(sel, name, value)
{
var oldVal;
//Get the value of the attribute, if it exists
if (sel.hasAttribute(name))
{
oldVal = sel.getAttribute(name);
}
//Well, I guess that attribute doesn't exist
if (oldVal === undefined && (value === undefined || value === null))
{
return null;
}
//No value to set? Return the current value
if (value === undefined)
{
return oldVal;
}
//Determine what to do with the attribute
if (value !== undefined && value !== null)
{
sel.setAttribute(name, value);
}
else if (value === null)
{
sel.removeAttribute(name);
}
return (value !== undefined) ? value : oldVal;
}
/**
* Change css property name to it's
* javascript camel case equivalent
*/
function _toCamel(s)
{
return String(s).replace(/(\-[a-z])/g, function($1){
return $1.toUpperCase().replace('-','');
});
}
function _css(sel, prop, val)
{
var equi;
//Camel-case
prop = _toCamel(prop);
//Equivalent properties for 'special' browsers
equi = {
outerHeight: "offsetHeight",
outerWidth: "offsetWidth",
top: "posTop"
};
//If you don't define a value, try returning the existing value
if(val === undefined && sel.style[prop] !== undefined)
{
return sel.style[prop];
}
else if(val === undefined && sel.style[equi[prop]] !== undefined)
{
return sel.style[equi[prop]];
}
//Let's try the easy way first
if(sel.style[prop] !== undefined)
{
sel.style[prop] = val;
//Short circuit
return null;
}
else if(sel.style[equi[prop]])
{
sel.style[equi[prop]] = val;
return null;
}
}
// --------------------------------------------------------------------------
/**
* DOM
*
* Dom manipulation module
* @namespace
* @memberOf $_
* @name dom
*/
d = {
/**
* Adds a class to the element(s) specified by the current
* selector
*
* @name addClass
* @memberOf $_.dom
* @function
* @param {string} class
*/
addClass: function (c)
{
$_.each(function (e){
e.classList.add(c);
});
},
/**
* Removes a class from the element(s) specified by the current
* selector
*
* @name removeClass
* @memberOf $_.dom
* @function
* @param {string} class
*/
removeClass: function (c)
{
$_.each(function (e){
e.classList.remove(c);
});
},
/**
* Hides the element(s) specified by the current selector
*
* @name hide
* @memberOf $_.dom
* @function
*/
hide: function ()
{
this.css('display', 'none');
},
/**
* Shows the element(s) specified by the current selector.
* if type is specified, the element will have it's style
* property set to "display:[your type]". If type is not
* specified, the element is set to "display:block".
*
* @name show
* @memberOf $_.dom
* @function
* @param {string} [type]
*/
show: function (type)
{
if (type === undefined)
{
type = "block";
}
this.css("display", type);
},
/**
* Sets attributes on element(s) specified by the current
* selector, or, if name is not specified, returns the
* value of the attribute of the element specified by the
* current selector.
*
* @name attr
* @memberOf $_.dom
* @function
* @param {string} name
* @param {?string}[value]
* @return {?string}
*/
attr: function (name, value)
{
var sel = this.el;
//Make sure you don't try to get a bunch of elements
if (sel.length > 1 && value === undefined)
{
return null;
}
else if (sel.length > 1 && value !== undefined) //You can set a bunch, though
{
$_.each(function (e){
return _attr(e, name, value);
});
}
else //Normal behavior
{
return _attr(sel, name, value);
}
},
/**
* Sets or retrieves the text content of the element
* specified by the current selector. If a value is
* passed, it will set that value on the current element,
* otherwise it will return the value of the current element
*
* @name text
* @memberOf $_.dom
* @function
* @param {?string} [value]
* @return {?string}
*/
text: function (value)
{
var oldValue, set, sel;
sel = this.el;
set = (value !== undefined) ? true : false;
oldValue = sel.textContent;
if(set)
{
sel.textContent = value;
return value;
}
else
{
return oldValue;
}
},
/**
* Sets or retrieves a css property of the element
* specified by the current selector. If a value is
* passed, it will set that value on the current element,
* otherwise it will return the value of the css property
* on the current element.
*
* Accepts either key/value arguments, or an object with
* multiple key/value pairs.
*
* @name css
* @memberOf $_.dom
* @function
* @param {(string|Object)} property
* @param {?string} [value]
* @return {?string}
*/
css: function (prop, val)
{
var prop_key = null;
// If passed an object, recurse!
if($_.type(prop) === 'object')
{
for (prop_key in prop)
{
if ( ! prop.hasOwnProperty(prop_key)) continue;
$_.each(function (e){
_css(e, prop_key, prop[prop_key]);
});
}
}
//Return the current value if a value is not set
else if(val === undefined && $_.type(prop) !== 'object')
{
return _css(this.el, prop);
}
$_.each(function (e){
_css(e, prop, val);
});
},
/**
* Adds to the innerHTML of the current element, after the last child.
*
* @example $_("ul").dom.append("<li></li>") adds an li element to the end of the selected ul element
* @name append
* @memberOf $_.dom
* @function
* @param {string} htm
*/
append: function(htm)
{
this.el.insertAdjacentHTML('beforeend', htm);
},
/**
* Adds to the innerHTML of the selected element, before the current children
*
* @name prepend
* @memberOf $_.dom
* @function
* @param {string} htm
*/
prepend: function(htm)
{
this.el.insertAdjacentHTML('afterbegin', htm);
},
/**
* Sets or gets the innerHTML propery of the element(s) passed
*
* @name html
* @memberOf $_.dom
* @function
* @param {?string} [htm]
* @return {?string}
*/
html: function(htm)
{
if(htm !== undefined)
{
this.el.innerHTML = htm;
}
//If the parameter is undefined, just return the current value
return this.el.innerHTML;
}
};
$_.ext('dom', d);
}());