forked from olcxjas-softworks/LarpixClient
2 lines
3.5 KiB
JavaScript
2 lines
3.5 KiB
JavaScript
"use strict";var t,e=require("./lib/decoder.js"),r=require("./lib/synthetic-gif.js"),s=require("./lib/cropper.js"),p=require("./lib/helper.js");exports.OutputType=void 0,(t=exports.OutputType||(exports.OutputType={})).BASE64="base64",t.BLOB="blob",t.BLOB_URL="blobURL";exports.SuperImageCropper=class{cropperJsInstance;parsedFrameInfo;commonCropOptions;frameCropperInstance;inputCropperOptions;imageTypeInfo=null;async crop(t){this.userInputValidator(t),this.inputCropperOptions=this.cleanUserInput(t),await this.init(),await this.decodeGIF();const e=await this.checkIsStaticImage();if(e.isStatic)return this.handleStaticImage(e.imageInfo.imageInstance);{const t=await this.cropFrames();return this.saveGif(t,this.parsedFrameInfo?.delays||[])}}async init(){this.cropperJsInstance=this.inputCropperOptions.cropperInstance;const t=Object.assign({width:100,height:100,scaleX:1,scaleY:1,x:0,y:0,rotate:0,left:0,top:0},this.inputCropperOptions.cropperJsOpts||{},this.cropperJsInstance?.getData()||{}),e=this.cropperJsInstance?.getImageData()||await p.getImageInfo({src:this.inputCropperOptions.src,crossOrigin:this.inputCropperOptions.crossOrigin})||{};this.commonCropOptions={cropperJsOpts:this.imageDataFormat(t,e),imageData:e,cropBoxData:this.cropperJsInstance?.getCropBoxData()||t},this.commonCropOptions.cropperJsOpts.rotate=this.normalizeRotate(this.commonCropOptions.cropperJsOpts.rotate)}cleanUserInput(t){const{cropperInstance:e}=t;return e&&(delete t.cropperJsOpts,delete t.src),t}userInputValidator(t){const{cropperInstance:e,cropperJsOpts:r,src:s}=t;if(!e){if(!r)throw new Error("If cropperInstance is not specified, cropperJsOpts must be specified.");if(!s)throw new Error("If cropperInstance is not specified, src must be specified.")}}normalizeRotate(t){return t<0?360+t%360:t}imageDataFormat(t,e){return t.left=t.x,t.top=t.y,t.width=t.width||e.naturalWidth,t.height=t.height||e.naturalHeight,t}async decodeGIF(){const t=new e.Decoder(this.inputCropperOptions.src||this.cropperJsInstance?.url||""),r=await t.decompressFrames();this.parsedFrameInfo=r}ensureFrameCropperExist(){this.frameCropperInstance||(this.frameCropperInstance=new s.FrameCropper({commonCropOptions:this.commonCropOptions}))}async cropFrames(){return this.ensureFrameCropperExist(),this.frameCropperInstance.init({commonCropOptions:this.commonCropOptions}),this.frameCropperInstance.cropGif(this.parsedFrameInfo)}async saveGif(t,e){return new r.SyntheticGIF({frames:t,commonCropOptions:this.commonCropOptions,frameDelays:e,gifJsOptions:this.inputCropperOptions.gifJsOptions,outputType:this.inputCropperOptions.outputType}).bootstrap()}async checkIsStaticImage(){const t=this.cropperJsInstance?.url??this.inputCropperOptions?.src,e=await p.loadImage({src:t,crossOrigin:this.inputCropperOptions.crossOrigin});return{isStatic:"image/gif"!==e?.imageType?.mime,imageInfo:e}}async handleStaticImage(t){const e=document.createElement("canvas"),r=e.getContext("2d");e.width=t.width,e.height=t.height,r?.drawImage(t,0,0),this.ensureFrameCropperExist(),this.frameCropperInstance.init({commonCropOptions:this.commonCropOptions});const s=await this.frameCropperInstance.cropStaticImage(e);return r?.clearRect(0,0,e.width,e.height),e.width=s.width,e.height=s.height,r?.putImageData(s,0,0),new Promise(((t,r)=>{const{outputType:s=exports.OutputType.BLOB_URL}=this.inputCropperOptions;s===exports.OutputType.BASE64?t(e.toDataURL(this.imageTypeInfo?.mime)):e.toBlob((e=>{if(!e)return r(null);if(s===exports.OutputType.BLOB)t(e);else{const r=window.URL.createObjectURL(e);t(r)}}),this.imageTypeInfo?.mime)}))}};
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