45 lines
1.7 KiB
JavaScript
45 lines
1.7 KiB
JavaScript
// Animates the dimensional changes resulting from altering element contents
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// Usage examples:
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// $("#myElement").showHtml("new HTML contents");
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// $("div").showHtml("new HTML contents", 400);
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// $(".className").showHtml("new HTML contents", 400,
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// function() {/* on completion */});
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(function($)
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{
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$.fn.showHtml = function(html, speed, callback)
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{
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return this.each(function()
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{
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// The element to be modified
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var el = $(this);
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// Preserve the original values of width and height - they'll need
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// to be modified during the animation, but can be restored once
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// the animation has completed.
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var finish = {width: this.style.width, height: this.style.height};
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// The original width and height represented as pixel values.
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// These will only be the same as `finish` if this element had its
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// dimensions specified explicitly and in pixels. Of course, if that
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// was done then this entire routine is pointless, as the dimensions
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// won't change when the content is changed.
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var cur = {width: el.width()+'px', height: el.height()+'px'};
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// Modify the element's contents. Element will resize.
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el.html(html);
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// Capture the final dimensions of the element
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// (with initial style settings still in effect)
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var next = {width: el.width()+'px', height: el.height()+'px'};
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el .css(cur) // restore initial dimensions
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.animate(next, speed, function() // animate to final dimensions
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{
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el.css(finish); // restore initial style settings
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if ( $.isFunction(callback) ) callback();
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});
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});
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};
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})(jQuery); |