1 line
24 KiB
JavaScript
1 line
24 KiB
JavaScript
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r=this.options,s=r.element,f=r.target,h=r.targetModifier;if(this.element=s,this.target=f,this.targetModifier=h,"viewport"===this.target?(this.target=document.body,this.targetModifier="visible"):"scroll-handle"===this.target&&(this.target=document.body,this.targetModifier="scroll-handle"),["element","target"].forEach(function(t){if("undefined"==typeof e[t])throw new Error("Tether Error: Both element and target must be defined");"undefined"!=typeof e[t].jquery?e[t]=e[t][0]:"string"==typeof e[t]&&(e[t]=document.querySelector(e[t]))}),l(this.element,this.getClass("element")),this.options.addTargetClasses!==!1&&l(this.target,this.getClass("target")),!this.options.attachment)throw new Error("Tether Error: You must provide an attachment");this.targetAttachment=R(this.options.targetAttachment),this.attachment=R(this.options.attachment),this.offset=N(this.options.offset),this.targetOffset=N(this.options.targetOffset),"undefined"!=typeof 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0===arguments[0]||arguments[0];this.options.addTargetClasses!==!1&&l(this.target,this.getClass("enabled")),l(this.element,this.getClass("enabled")),this.enabled=!0,this.scrollParents.forEach(function(e){e!==t.target.ownerDocument&&e.addEventListener("scroll",t.position)}),e&&this.position()}},{key:"disable",value:function(){var t=this;f(this.target,this.getClass("enabled")),f(this.element,this.getClass("enabled")),this.enabled=!1,"undefined"!=typeof this.scrollParents&&this.scrollParents.forEach(function(e){e.removeEventListener("scroll",t.position)})}},{key:"destroy",value:function(){var t=this;this.disable(),j.forEach(function(e,o){e===t&&j.splice(o,1)}),0===j.length&&i()}},{key:"updateAttachClasses",value:function(t,e){var o=this;t=t||this.attachment,e=e||this.targetAttachment;var i=["left","top","bottom","right","middle","center"];"undefined"!=typeof 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i=this.cache("element-bounds",function(){return n(t.element)}),a=i.width,f=i.height;if(0===a&&0===f&&"undefined"!=typeof this.lastSize){var l=this.lastSize;a=l.width,f=l.height}else this.lastSize={width:a,height:f};var h=this.cache("target-bounds",function(){return t.getTargetBounds()}),d=h,u=y(H(this.attachment),{width:a,height:f}),p=y(H(o),d),c=y(this.offset,{width:a,height:f}),g=y(this.targetOffset,d);u=v(u,c),p=v(p,g);for(var m=h.left+p.left-u.left,b=h.top+p.top-u.top,w=0;w<C.modules.length;++w){var O=C.modules[w],E=O.position.call(this,{left:m,top:b,targetAttachment:o,targetPos:h,elementPos:i,offset:u,targetOffset:p,manualOffset:c,manualTargetOffset:g,scrollbarSize:P,attachment:this.attachment});if(E===!1)return!1;"undefined"!=typeof E&&"object"==typeof E&&(b=E.top,m=E.left)}var x={page:{top:b,left:m},viewport:{top:b-pageYOffset,bottom:pageYOffset-b-f+innerHeight,left:m-pageXOffset,right:pageXOffset-m-a+innerWidth}},A=this.target.ownerDocument,T=A.defaultView,P=void 0;return T.innerHeight>A.documentElement.clientHeight&&(P=this.cache("scrollbar-size",s),x.viewport.bottom-=P.height),T.innerWidth>A.documentElement.clientWidth&&(P=this.cache("scrollbar-size",s),x.viewport.right-=P.width),["","static"].indexOf(A.body.style.position)!==-1&&["","static"].indexOf(A.body.parentElement.style.position)!==-1||(x.page.bottom=A.body.scrollHeight-b-f,x.page.right=A.body.scrollWidth-m-a),"undefined"!=typeof this.options.optimizations&&this.options.optimizations.moveElement!==!1&&"undefined"==typeof this.targetModifier&&!function(){var e=t.cache("target-offsetparent",function(){return r(t.target)}),o=t.cache("target-offsetparent-bounds",function(){return n(e)}),i=getComputedStyle(e),s=o,a={};if(["Top","Left","Bottom","Right"].forEach(function(t){a[t.toLowerCase()]=parseFloat(i["border"+t+"Width"])}),o.right=A.body.scrollWidth-o.left-s.width+a.right,o.bottom=A.body.scrollHeight-o.top-s.height+a.bottom,x.page.top>=o.top+a.top&&x.page.bottom>=o.bottom&&x.page.left>=o.left+a.left&&x.page.right>=o.right){var f=e.scrollTop,l=e.scrollLeft;x.offset={top:x.page.top-o.top+f-a.top,left:x.page.left-o.left+l-a.left}}}(),this.move(x),this.history.unshift(x),this.history.length>3&&this.history.pop(),e&&W(),!0}}},{key:"move",value:function(t){var e=this;if("undefined"!=typeof this.element.parentNode){var o={};for(var i in t){o[i]={};for(var n in t[i]){for(var s=!1,f=0;f<this.history.length;++f){var l=this.history[f];if("undefined"!=typeof l[i]&&!g(l[i][n],t[i][n])){s=!0;break}}s||(o[i][n]=!0)}}var h={top:"",left:"",right:"",bottom:""},d=function(t,o){var i="undefined"!=typeof e.options.optimizations,n=i?e.options.optimizations.gpu:null;if(n!==!1){var r=void 0,s=void 0;t.top?(h.top=0,r=o.top):(h.bottom=0,r=-o.bottom),t.left?(h.left=0,s=o.left):(h.right=0,s=-o.right),"number"==typeof window.devicePixelRatio&&devicePixelRatio%1===0&&(s=Math.round(s*devicePixelRatio)/devicePixelRatio,r=Math.round(r*devicePixelRatio)/devicePixelRatio),h[B]="translateX("+s+"px) translateY("+r+"px)","msTransform"!==B&&(h[B]+=" translateZ(0)")}else t.top?h.top=o.top+"px":h.bottom=o.bottom+"px",t.left?h.left=o.left+"px":h.right=o.right+"px"},u=!1;if((o.page.top||o.page.bottom)&&(o.page.left||o.page.right)?(h.position="absolute",d(o.page,t.page)):(o.viewport.top||o.viewport.bottom)&&(o.viewport.left||o.viewport.right)?(h.position="fixed",d(o.viewport,t.viewport)):"undefined"!=typeof o.offset&&o.offset.top&&o.offset.left?!function(){h.position="absolute";var i=e.cache("target-offsetparent",function(){return 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