share-this/dist/share-this.js

Medium-like text selection sharing without dependencies

!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):(e=e||self).ShareThis=t()}(this,function(){"use strict";var e;function t(t,n){return e||(e=function(e){for(var t="atchesSelector",n=0,r=["matches","m"+t,"webkitM"+t,"mozM"+t,"msM"+t,"oM"+t];n<r.length;n++){var o=r[n];if(e[o])return o}}(t)),t[e](n)}function n(e,n){for(var r=e;r&&(1!==r.nodeType||!t(r,n));)r=r.parentNode;return r}function r(e){return"function"==typeof e}function o(e,t,n){var r=n.document,o=r.defaultView,i=function(e){if(e.isCollapsed)return!0;var t=e.anchorNode.compareDocumentPosition(e.focusNode);return t?(4&t)>0:e.anchorOffset<e.focusOffset}(o.getSelection()),a=function(e,t){var n,r=e.getClientRects(),o=[].slice.bind(r);if(t){for(var i=1/0,a=r.length;a--;){var c=r[a];if(c.left>i)break;i=c.left}n=o(a+1)}else{for(var u=-1/0,f=0;f<r.length;f++){var s=r[f];if(s.right<u)break;u=s.right}n=o(0,f)}return{top:Math.min.apply(Math,n.map(function(e){return e.top})),bottom:Math.max.apply(Math,n.map(function(e){return e.bottom})),left:n[0].left,right:n[n.length-1].right}}(t,i),c=function(e){var t=e.document.body;return("static"===e.getComputedStyle(t).position?t.parentNode:t).getBoundingClientRect()}(o),u=e.style;i?u.right=r.documentElement.clientWidth-a.right+c.left+"px":u.left=a.left-c.left+"px",u.width=a.right-a.left+"px",u.height=a.bottom-a.top+"px",u.top=a.top-c.top+"px",u.position="absolute",e.className=n.popoverClass}var i="data-share-via";function a(e){return{createPopover:function(){var t=e.createElement("div");return t.addEventListener("click",function(e){!function(e,t){var o=n(t.target,"["+i+"]");if(o){var a=function(e,t){for(var n=0;n<e.length;n++){var r=e[n];if(r.name===t)return r}}(e,o.getAttribute(i));a&&r(a.action)&&a.action(t,o)}}(this.sharers,e)}),t},attachPopover:function(t){e.body.appendChild(t)},removePopover:function(e){var t=e.parentNode;t&&t.removeChild(e)}}}var c,u=function(e,t,n,r){var o=e.shareUrl||e.document.defaultView.location;return"<ul>"+t.map(function(e){return'<li data-share-via="'+e.name+'">'+e.render.call(e,n,r,o)+"</li>"}).join("")+"</ul>"},f=["selectionchange","mouseup","touchend","touchcancel"];return function(e){var t=(Object.assign||function(e,t){if(t&&"object"==typeof t)for(var n in t)e[n]=t[n];return e})({document:document,selector:"body",sharers:[],popoverClass:"share-this-popover",transformer:function(e){return e.trim().replace(/\s+/g," ")}},e||{}),i=!1,s=!1,l=c,p=c,d=c,v=c;return{init:function(){return!i&&(l=t.document,(p=l.defaultView).getSelection?(f.forEach(h),p.addEventListener("resize",g),v=a(l),i=!0):(console.warn("share-this: Selection API isn't supported"),!1))},destroy:function(){return!(!i||s)&&(f.forEach(m),p.removeEventListener("resize",g),C(),l=c,p=c,s=!0)},reposition:function(){return d&&o(d,y(),t),!!d}};function h(e){l.addEventListener(e,b)}function m(e){l.removeEventListener(e,b)}function g(){d&&o(d,y(),t)}function b(e){var n=e.type;!d!=("selectionchange"===n)&&setTimeout(function(){if(p){var e=y();e?function(e){var n=!d,i=e.toString(),a=t.transformer(i),f=t.sharers.filter(function(e,t,n){var o=n.active;return r(o)?o(e,t):o===c||o}.bind(null,a,i));f.length?(n&&(d=v.createPopover()),d.sharers=f,d.innerHTML=u(t,f,a,i),o(d,e,t),n&&(v.attachPopover(d),r(t.onOpen)&&t.onOpen(d,a,i))):d&&C()}(e):C()}},10)}function y(){var e=p.getSelection(),r=e.rangeCount&&e.getRangeAt(0);if(r){var o=function(e,t){var r=e.cloneRange();if(e.collapsed||!t)return r;var o=n(e.startContainer,t);return o?function(e,t){var n=e.compareDocumentPosition(t);return!n||(16&n)>0}(o,e.endContainer)||r.setEnd(o,o.childNodes.length):(o=n(e.endContainer,t))?r.setStart(o,0):r.collapse(),r}(r,t.selector);if(!o.collapsed&&o.getClientRects().length)return o}}function C(){d&&(v.removePopover(d),d=c,r(t.onClose)&&t.onClose())}}});
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