68 lines
1.6 KiB
JavaScript
68 lines
1.6 KiB
JavaScript
/*!
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* jQuery fitToParent; version: 1.2.1
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* https://github.com/drewbaker/fitToParent
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*/
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jQuery.fn.fitToParent = function (options) {
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this.each(function () {
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// Vars
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var $el = jQuery(this);
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var $box;
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// Get size parent (box to fit element in)
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if ($el.closest('.size-parent').length) {
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$box = $el.closest('.size-parent');
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} else {
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$box = $el.parent();
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}
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// These are the defaults.
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var settings = jQuery.extend({
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heightOffset: 0,
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widthOffset: 0,
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boxHeight: $box.height(),
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boxWidth: $box.width(),
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callback: null
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}, options);
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// Setup box and element widths
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var width = $el.attr('width');
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var height = $el.attr('height');
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if (!width || !height) {
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var width = $el.width();
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var height = $el.height();
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}
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var parentWidth = settings.boxWidth - settings.widthOffset;
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var parentHeight = settings.boxHeight - settings.heightOffset;
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// Maintain aspect ratio
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var aspect = $el.data('aspect');
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if (!aspect) {
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aspect = width / height;
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$el.data('aspect', aspect);
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}
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var parentAspect = parentWidth / parentHeight;
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// Resize to fit box
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if (aspect > parentAspect) {
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newWidth = parentWidth;
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newHeight = (newWidth / aspect);
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} else {
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newHeight = parentHeight;
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newWidth = newHeight * aspect;
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}
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// Set new size of element
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$el.width(newWidth);
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$el.height(newHeight);
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// Fire callback
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if (typeof (settings.callback) == "function") {
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settings.callback(newWidth, newHeight);
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}
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});
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};
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