为了解决需要outerHeight()
在不支持它的 jQuery 版本中添加 setter 的问题,我简单地添加了jQuery++提供的以下帮助器。
var weird = /button|select/i, //margin is inside border
getBoxes = {},
checks = {
width: ["Left", "Right"],
height: ['Top', 'Bottom'],
oldOuterHeight: $.fn.outerHeight,
oldOuterWidth: $.fn.outerWidth,
oldInnerWidth: $.fn.innerWidth,
oldInnerHeight: $.fn.innerHeight
};
/**
* @add jQuery.fn
*/
$.each({
/**
* @function outerWidth
* @parent dimensions
* Lets you set the outer width on an object
* @param {Number} [height]
* @param {Boolean} [includeMargin=false] Makes setting the outerWidth adjust
* for margin. Defaults to false.
*
* $('#hasMargin').outerWidth(50, true);
*
* @return {jQuery|Number} If you are setting the value, returns the jQuery wrapped elements.
*/
width:
/**
* @function innerWidth
* @parent dimensions
* Lets you set the inner height of an object
* @param {Number} [height]
*/
"Width",
/**
* @function outerHeight
* @parent dimensions
* Lets you set the outer height of an object where: <br/>
* <code>outerHeight = height + padding + border + (margin)</code>.
* @codestart
* $("#foo").outerHeight(100); //sets outer height
* $("#foo").outerHeight(100, true); //uses margins
* $("#foo").outerHeight(); //returns outer height
* $("#foo").outerHeight(true); //returns outer height with margins
* @codeend
* When setting the outerHeight, it adjusts the height of the element.
* @param {Number|Boolean} [height] If a number is provided -> sets the outer height of the object.<br/>
* If true is given -> returns the outer height and includes margins.<br/>
* If no value is given -> returns the outer height without margin.
* @param {Boolean} [includeMargin] Makes setting the outerHeight adjust for margin.
* @return {jQuery|Number} If you are setting the value, returns the jQuery wrapped elements.
* Otherwise, returns outerHeight in pixels.
*/
height:
/**
* @function innerHeight
* @parent dimensions
* Lets you set the outer width on an object
* @param {Number} [height]
*/
"Height" }, function(lower, Upper) {
//used to get the padding and border for an element in a given direction
getBoxes[lower] = function(el, boxes) {
var val = 0;
if (!weird.test(el.nodeName)) {
//make what to check for ....
var myChecks = [];
$.each(checks[lower], function() {
var direction = this;
$.each(boxes, function(name, val) {
if (val)
myChecks.push(name + direction+ (name == 'border' ? "Width" : "") );
})
})
$.each($.curStyles(el, myChecks), function(name, value) {
val += (parseFloat(value) || 0);
})
}
return val;
}
//getter / setter
$.fn["outer" + Upper] = function(v, margin) {
var first = this[0];
if (typeof v == 'number') {
first && this[lower](v - getBoxes[lower](first, {padding: true, border: true, margin: margin}))
return this;
} else {
return first ? checks["oldOuter" + Upper].call(this, v) : null;
}
}
$.fn["inner" + Upper] = function(v) {
var first = this[0];
if (typeof v == 'number') {
first&& this[lower](v - getBoxes[lower](first, { padding: true }))
return this;
} else {
return first ? checks["oldInner" + Upper].call(this, v) : null;
}
}
//provides animations
var animate = function(boxes){
return function(fx){
if (fx.state == 0) {
fx.start = $(fx.elem)[lower]();
fx.end = fx.end - getBoxes[lower](fx.elem,boxes);
}
fx.elem.style[lower] = (fx.pos * (fx.end - fx.start) + fx.start) + "px"
}
}
$.fx.step["outer" + Upper] = animate({padding: true, border: true})
$.fx.step["outer" + Upper+"Margin"] = animate({padding: true, border: true, margin: true})
$.fx.step["inner" + Upper] = animate({padding: true})
})
对这个发现非常满意!希望它可以帮助别人。干杯!