6 lines
2.6 KiB
JavaScript
Executable File
6 lines
2.6 KiB
JavaScript
Executable File
/*!
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Zoom 1.7.21
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license: MIT
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http://www.jacklmoore.com/zoom
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*/
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!function(d){var n={url:!1,callback:!1,target:!1,duration:120,on:"mouseover",touch:!0,onZoomIn:!1,onZoomOut:!1,magnify:1};d.zoom=function(o,t,e,n){var i,u,a,c,r,l,m,f=d(o),s=f.css("position"),h=d(t);return o.style.position=/(absolute|fixed)/.test(s)?s:"relative",o.style.overflow="hidden",e.style.width=e.style.height="",d(e).addClass("zoomImg").css({position:"absolute",top:0,left:0,opacity:0,width:e.width*n,height:e.height*n,border:"none",maxWidth:"none",maxHeight:"none"}).appendTo(o),{init:function(){u=f.outerWidth(),i=f.outerHeight(),a=t===o?(c=u,i):(c=h.outerWidth(),h.outerHeight()),r=(e.width-u)/c,l=(e.height-i)/a,m=h.offset()},move:function(o){var t=o.pageX-m.left,o=o.pageY-m.top,o=Math.max(Math.min(o,a),0),t=Math.max(Math.min(t,c),0);e.style.left=t*-r+"px",e.style.top=o*-l+"px"}}},d.fn.zoom=function(e){return this.each(function(){var i=d.extend({},n,e||{}),u=i.target&&d(i.target)[0]||this,o=this,a=d(o),c=document.createElement("img"),r=d(c),l="mousemove.zoom",m=!1,f=!1;if(!i.url){var t=o.querySelector("img");if(t&&(i.url=t.getAttribute("data-src")||t.currentSrc||t.src,i.alt=t.getAttribute("data-alt")||t.alt),!i.url)return}a.one("zoom.destroy",function(o,t){a.off(".zoom"),u.style.position=o,u.style.overflow=t,c.onload=null,r.remove()}.bind(this,u.style.position,u.style.overflow)),c.onload=function(){var t=d.zoom(u,o,c,i.magnify);function e(o){t.init(),t.move(o),r.stop().fadeTo(d.support.opacity?i.duration:0,1,"function"==typeof i.onZoomIn&&i.onZoomIn.call(c))}function n(){r.stop().fadeTo(i.duration,0,"function"==typeof i.onZoomOut&&i.onZoomOut.call(c))}"grab"===i.on?a.on("mousedown.zoom",function(o){1===o.which&&(d(document).one("mouseup.zoom",function(){n(),d(document).off(l,t.move)}),e(o),d(document).on(l,t.move),o.preventDefault())}):"click"===i.on?a.on("click.zoom",function(o){if(!m)return m=!0,e(o),d(document).on(l,t.move),d(document).one("click.zoom",function(){n(),m=!1,d(document).off(l,t.move)}),!1}):"toggle"===i.on?a.on("click.zoom",function(o){m?n():e(o),m=!m}):"mouseover"===i.on&&(t.init(),a.on("mouseenter.zoom",e).on("mouseleave.zoom",n).on(l,t.move)),i.touch&&a.on("touchstart.zoom",function(o){o.preventDefault(),f?(f=!1,n()):(f=!0,e(o.originalEvent.touches[0]||o.originalEvent.changedTouches[0]))}).on("touchmove.zoom",function(o){o.preventDefault(),t.move(o.originalEvent.touches[0]||o.originalEvent.changedTouches[0])}).on("touchend.zoom",function(o){o.preventDefault(),f&&(f=!1,n())}),"function"==typeof i.callback&&i.callback.call(c)},c.setAttribute("role","presentation"),c.alt=i.alt||"",c.src=i.url})},d.fn.zoom.defaults=n}(window.jQuery); |