1 line
14 KiB
JavaScript
1 line
14 KiB
JavaScript
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(function(e){"use strict";var t=function(e,i,a){var n,r,o=document.createElement("img");if(o.onerror=i,o.onload=function(){!r||a&&a.noRevoke||t.revokeObjectURL(r),i&&i(t.scale(o,a))},t.isInstanceOf("Blob",e)||t.isInstanceOf("File",e))n=r=t.createObjectURL(e),o._type=e.type;else{if("string"!=typeof e)return!1;n=e,a&&a.crossOrigin&&(o.crossOrigin=a.crossOrigin)}return n?(o.src=n,o):t.readFile(e,function(e){var t=e.target;t&&t.result?o.src=t.result:i&&i(e)})},i=window.createObjectURL&&window||window.URL&&URL.revokeObjectURL&&URL||window.webkitURL&&webkitURL;t.isInstanceOf=function(e,t){return Object.prototype.toString.call(t)==="[object "+e+"]"},t.transformCoordinates=function(e,t){var i=e.getContext("2d"),a=e.width,n=e.height;switch(t>4&&(e.width=n,e.height=a),t){case 2:i.translate(a,0),i.scale(-1,1);break;case 3:i.translate(a,n),i.rotate(Math.PI);break;case 4:i.translate(0,n),i.scale(1,-1);break;case 5:i.rotate(.5*Math.PI),i.scale(1,-1);break;case 6:i.rotate(.5*Math.PI),i.translate(0,-n);break;case 7:i.rotate(.5*Math.PI),i.translate(a,-n),i.scale(-1,1);break;case 8:i.rotate(-.5*Math.PI),i.translate(-a,0)}},t.renderImageToCanvas=function(e,t,i,a,n,r,o,s,d,l){return e.getContext("2d").drawImage(t,i,a,n,r,o,s,d,l),e},t.scale=function(e,i){i=i||{};var a,n,r,o,s,d,l,c=document.createElement("canvas"),u=e.getContext||(i.canvas||i.crop||i.orientation)&&c.getContext,g=e.width,f=e.height,h=g,m=f,p=0,S=0,x=0,y=0;return u&&i.orientation>4?(a=i.maxHeight,n=i.maxWidth,r=i.minHeight,o=i.minWidth):(a=i.maxWidth,n=i.maxHeight,r=i.minWidth,o=i.minHeight),u&&a&&n&&i.crop?(s=a,d=n,a/n>g/f?(m=n*g/a,S=(f-m)/2):(h=a*f/n,p=(g-h)/2)):(s=g,d=f,l=Math.max((r||s)/s,(o||d)/d),l>1&&(s=Math.ceil(s*l),d=Math.ceil(d*l)),l=Math.min((a||s)/s,(n||d)/d),1>l&&(s=Math.ceil(s*l),d=Math.ceil(d*l))),u?(c.width=s,c.height=d,t.transformCoordinates(c,i.orientation),t.renderImageToCanvas(c,e,p,S,h,m,x,y,s,d)):(e.width=s,e.height=d,e)},t.createObjectURL=function(e){return i?i.createObjectURL(e):!1},t.revokeObjectURL=function(e){return i?i.revokeObjectURL(e):!1},t.readFile=function(e,t,i){if(window.FileReader){var a=new FileReader;if(a.onload=a.onerror=t,i=i||"readAsDataURL",a[i])return a[i](e),a}return!1},"function"==typeof define&&define.amd?define(function(){return t}):e.loadImage=t})(this),function(e){"use strict";"function"==typeof define&&define.amd?define(["load-image"],e):e(window.loadImage)}(function(e){"use strict";if(window.navigator&&window.navigator.platform&&/iP(hone|od|ad)/.test(window.navigator.platform)){var t=e.renderImageToCanvas;e.detectSubsampling=function(e){var t,i;return e.width*e.height>1048576?(t=document.createElement("canvas"),t.width=t.height=1,i=t.getContext("2d"),i.drawImage(e,-e.width+1,0),0===i.getImageData(0,0,1,1).data[3]):!1},e.detectVerticalSquash=function(e,t){var i,a,n,r,o,s=document.createElement("canvas"),d=s.getContext("2d");for(s.width=1,s.height=t,d.drawImage(e,0,0),i=d.getImageData(0,0,1,t).data,a=0,n=t,r=t;r>a;)o=i[4*(r-1)+3],0===o?n=r:a=r,r=n+a>>1;return r/t||1},e.renderImageToCanvas=function(i,a,n,r,o,s,d,l,c,u){if("image/jpeg"===a._type){var g,f,h,m,p=i.getContext("2d"),S=document.createElement("canvas"),x=1024,y=S.getContext("2d");if(S.width=x,S.height=x,p.save(),g=e.detectSubsampling(a),g&&(o/=2,s/=2),f=e.detectVerticalSquash(a,s),g&&1!==f){for(c=Math.ceil(x*c/o),u=Math.ceil(x*u/s/f),l=0,m=0;s>m;){for(d=0,h=0;o>h;)y.clearRect(0,0,x,x),y.drawImage(a,n,r,o,s,-h,-m,o,s),p.drawImage(S,0,0,x,x,d,l,c,u),h+=x,d+=c;m+=x,l+=u}return p.restore(),i}}return t(i,a,n,r,o,s,d,l,c,u)}}}),function(e){"use strict";"function"==typeof define&&define.amd?define(["load-image"],e):e(window.loadImage)}(function(e){"use strict";var t=window.Blob&&(Blob.prototype.slice||Blob.prototype.webkitSlice||Blob.prototype.mozSlice);e.blobSlice=t&&function(){var e=this.slice||this.webkitSlice||this.mozSlice;return e.apply(this,arguments)},e.metaDataParsers={jpeg:{65505:[]}},e.parseMetaData=function(t,i,a){a=a||{};var n=this,r=a.maxMetaDataSize||262144,o={},s=!(window.DataView&&t&&t.size>=12&&"image/jpeg"===t.type&&e.blobSlice);(s||!e.readFile(e.blobSlic
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