Jquery Live Function
- by marharépa
Hi! I want to make this script to work as LIVE() function.
Please help me!
$(".img img").each(function() {
$(this).cjObjectScaler({
destElem: $(this).parent(),
method: "fit"
});
});
the cjObjectScaler script (called in the html header) is this: (thanks for Doug Jones)
(function ($) {
jQuery.fn.imagesLoaded = function (callback) {
var elems = this.filter('img'),
len = elems.length;
elems.bind('load', function () {
if (--len <= 0) {
callback.call(elems, this);
}
}).each(function () {
// cached images don't fire load sometimes, so we reset src.
if (this.complete || this.complete === undefined) {
var src = this.src;
// webkit hack from http://groups.google.com/group/jquery-dev/browse_thread/thread/eee6ab7b2da50e1f
this.src = '#';
this.src = src;
}
});
};
})(jQuery);
/*
CJ Object Scaler
*/
(function ($) {
jQuery.fn.cjObjectScaler = function (options) {
/*
user variables (settings)
***************************************/
var settings = {
// must be a jQuery object
method: "fill",
// the parent object to scale our object into
destElem: null,
// fit|fill
fade: 0 // if positive value, do hide/fadeIn
};
/*
system variables
***************************************/
var sys = {
// function parameters
version: '2.1.1',
elem: null
};
/*
scale the image
***************************************/
function scaleObj(obj) {
// declare some local variables
var destW = jQuery(settings.destElem).width(),
destH = jQuery(settings.destElem).height(),
ratioX, ratioY, scale, newWidth, newHeight,
borderW = parseInt(jQuery(obj).css("borderLeftWidth"), 10) + parseInt(jQuery(obj).css("borderRightWidth"), 10),
borderH = parseInt(jQuery(obj).css("borderTopWidth"), 10) + parseInt(jQuery(obj).css("borderBottomWidth"), 10),
objW = jQuery(obj).width(),
objH = jQuery(obj).height();
// check for valid border values. IE takes in account border size when calculating width/height so just set to 0
borderW = isNaN(borderW) ? 0 : borderW;
borderH = isNaN(borderH) ? 0 : borderH;
// calculate scale ratios
ratioX = destW / jQuery(obj).width();
ratioY = destH / jQuery(obj).height();
// Determine which algorithm to use
if (!jQuery(obj).hasClass("cf_image_scaler_fill") && (jQuery(obj).hasClass("cf_image_scaler_fit") || settings.method === "fit")) {
scale = ratioX < ratioY ? ratioX : ratioY;
} else if (!jQuery(obj).hasClass("cf_image_scaler_fit") && (jQuery(obj).hasClass("cf_image_scaler_fill") || settings.method === "fill")) {
scale = ratioX < ratioY ? ratioX : ratioY;
}
// calculate our new image dimensions
newWidth = parseInt(jQuery(obj).width() * scale, 10) - borderW;
newHeight = parseInt(jQuery(obj).height() * scale, 10) - borderH;
// Set new dimensions & offset
jQuery(obj).css({
"width": newWidth + "px",
"height": newHeight + "px"//,
// "position": "absolute",
// "top": (parseInt((destH - newHeight) / 2, 10) - parseInt(borderH / 2, 10)) + "px",
// "left": (parseInt((destW - newWidth) / 2, 10) - parseInt(borderW / 2, 10)) + "px"
}).attr({
"width": newWidth,
"height": newHeight
});
// do our fancy fade in, if user supplied a fade amount
if (settings.fade > 0) {
jQuery(obj).fadeIn(settings.fade);
}
}
/*
set up any user passed variables
***************************************/
if (options) {
jQuery.extend(settings, options);
}
/*
main
***************************************/
return this.each(function () {
sys.elem = this;
// if they don't provide a destObject, use parent
if (settings.destElem === null) {
settings.destElem = jQuery(sys.elem).parent();
}
// need to make sure the user set the parent's position. Things go bonker's if not set.
// valid values: absolute|relative|fixed
if (jQuery(settings.destElem).css("position") === "static") {
jQuery(settings.destElem).css({
"position": "relative"
});
}
// if our object to scale is an image, we need to make sure it's loaded before we continue.
if (typeof sys.elem === "object" && typeof settings.destElem === "object" && typeof settings.method === "string") {
// if the user supplied a fade amount, hide our image
if (settings.fade > 0) {
jQuery(sys.elem).hide();
}
if (sys.elem.nodeName === "IMG") {
// to fix the weird width/height caching issue we set the image dimensions to be auto;
jQuery(sys.elem).width("auto");
jQuery(sys.elem).height("auto");
// wait until the image is loaded before scaling
jQuery(sys.elem).imagesLoaded(function () {
scaleObj(this);
});
} else {
scaleObj(jQuery(sys.elem));
}
} else {
console.debug("CJ Object Scaler could not initialize.");
return;
}
});
};
})(jQuery);
