Function createOrUpdateImage

_benchmarks/sample_echarts.js:8308–8336

(newImageOrSrc, image, hostEl, onload, cbPayload)

        }
    }
    function createOrUpdateImage(newImageOrSrc, image, hostEl, onload, cbPayload) {
        if (!newImageOrSrc) {
            return image;
        }
        else if (typeof newImageOrSrc === 'string') {
            if ((image && image.__zrImageSrc === newImageOrSrc) || !hostEl) {
                return image;
            }
            var cachedImgObj = globalImageCache.get(newImageOrSrc);
            var pendingWrap = { hostEl: hostEl, cb: onload, cbPayload: cbPayload };
            if (cachedImgObj) {
                image = cachedImgObj.image;
                !isImageReady(image) && cachedImgObj.pending.push(pendingWrap);
            }
            else {
                image = new Image();
                image.onload = image.onerror = imageOnLoad;
                globalImageCache.put(newImageOrSrc, image.__cachedImgObj = {
                    image: image,
                    pending: [pendingWrap]
                });
                image.src = image.__zrImageSrc = newImageOrSrc;
            }
            return image;
        }
        else {
            return newImageOrSrc;
        }
    }
    function imageOnLoad() {
        var cachedImgObj = this.__cachedImgObj;
        this.onload = this.onerror = this.__cachedImgObj = null;