import { Observable } from "./observable.js";
import { GetDOMTextContent, IsNavigatorAvailable, IsWindowObjectExist } from "./domManagement.js";
import { Logger } from "./logger.js";
import { DeepCopier } from "./deepCopier.js";
import { PrecisionDate } from "./precisionDate.js";
import { _WarnImport } from "./devTools.js";
import { WebRequest } from "./webRequest.js";
import { EngineStore } from "../Engines/engineStore.js";
import { FileToolsOptions, DecodeBase64UrlToBinary, IsBase64DataUrl, LoadFile as FileToolsLoadFile, LoadImage as FileToolLoadImage, ReadFile as FileToolsReadFile, SetCorsBehavior, } from "./fileTools.js";
import { TimingTools } from "./timingTools.js";
import { InstantiationTools } from "./instantiationTools.js";
import { RandomGUID } from "./guid.js";
import { IsExponentOfTwo, Mix } from "./tools.functions.js";
/**
* Class containing a set of static utilities functions
*/
export class Tools {
/**
* Gets or sets the base URL to use to load assets
*/
static get BaseUrl() {
return FileToolsOptions.BaseUrl;
}
static set BaseUrl(value) {
FileToolsOptions.BaseUrl = value;
}
/**
* This function checks whether a URL is absolute or not.
* It will also detect data and blob URLs
* @param url the url to check
* @returns is the url absolute or relative
*/
static IsAbsoluteUrl(url) {
// See https://stackoverflow.com/a/38979205.
// URL is protocol-relative (= absolute)
if (url.indexOf("//") === 0) {
return true;
}
// URL has no protocol (= relative)
if (url.indexOf("://") === -1) {
return false;
}
// URL does not contain a dot, i.e. no TLD (= relative, possibly REST)
if (url.indexOf(".") === -1) {
return false;
}
// URL does not contain a single slash (= relative)
if (url.indexOf("/") === -1) {
return false;
}
// The first colon comes after the first slash (= relative)
if (url.indexOf(":") > url.indexOf("/")) {
return false;
}
// Protocol is defined before first dot (= absolute)
if (url.indexOf("://") < url.indexOf(".")) {
return true;
}
if (url.indexOf("data:") === 0 || url.indexOf("blob:") === 0) {
return true;
}
// Anything else must be relative
return false;
}
/**
* Sets the base URL to use to load scripts
*/
static set ScriptBaseUrl(value) {
FileToolsOptions.ScriptBaseUrl = value;
}
static get ScriptBaseUrl() {
return FileToolsOptions.ScriptBaseUrl;
}
/**
* Sets a preprocessing function to run on a source URL before importing it
* Note that this function will execute AFTER the base URL is appended to the URL
*/
static set ScriptPreprocessUrl(func) {
FileToolsOptions.ScriptPreprocessUrl = func;
}
static get ScriptPreprocessUrl() {
return FileToolsOptions.ScriptPreprocessUrl;
}
/**
* Gets or sets the retry strategy to apply when an error happens while loading an asset
*/
static get DefaultRetryStrategy() {
return FileToolsOptions.DefaultRetryStrategy;
}
static set DefaultRetryStrategy(strategy) {
FileToolsOptions.DefaultRetryStrategy = strategy;
}
/**
* Default behavior for cors in the application.
* It can be a string if the expected behavior is identical in the entire app.
* Or a callback to be able to set it per url or on a group of them (in case of Video source for instance)
*/
static get CorsBehavior() {
return FileToolsOptions.CorsBehavior;
}
static set CorsBehavior(value) {
FileToolsOptions.CorsBehavior = value;
}
/**
* Gets or sets a global variable indicating if fallback texture must be used when a texture cannot be loaded
* @ignorenaming
*/
static get UseFallbackTexture() {
return EngineStore.UseFallbackTexture;
}
static set UseFallbackTexture(value) {
EngineStore.UseFallbackTexture = value;
}
/**
* Use this object to register external classes like custom textures or material
* to allow the loaders to instantiate them
*/
static get RegisteredExternalClasses() {
return InstantiationTools.RegisteredExternalClasses;
}
static set RegisteredExternalClasses(classes) {
InstantiationTools.RegisteredExternalClasses = classes;
}
/**
* Texture content used if a texture cannot loaded
* @ignorenaming
*/
// eslint-disable-next-line @typescript-eslint/naming-convention
static get fallbackTexture() {
return EngineStore.FallbackTexture;
}
// eslint-disable-next-line @typescript-eslint/naming-convention
static set fallbackTexture(value) {
EngineStore.FallbackTexture = value;
}
/**
* Read the content of a byte array at a specified coordinates (taking in account wrapping)
* @param u defines the coordinate on X axis
* @param v defines the coordinate on Y axis
* @param width defines the width of the source data
* @param height defines the height of the source data
* @param pixels defines the source byte array
* @param color defines the output color
*/
static FetchToRef(u, v, width, height, pixels, color) {
const wrappedU = (Math.abs(u) * width) % width | 0;
const wrappedV = (Math.abs(v) * height) % height | 0;
const position = (wrappedU + wrappedV * width) * 4;
color.r = pixels[position] / 255;
color.g = pixels[position + 1] / 255;
color.b = pixels[position + 2] / 255;
color.a = pixels[position + 3] / 255;
}
/**
* Interpolates between a and b via alpha
* @param a The lower value (returned when alpha = 0)
* @param b The upper value (returned when alpha = 1)
* @param alpha The interpolation-factor
* @returns The mixed value
*/
static Mix(a, b, alpha) {
return 0;
}
/**
* Tries to instantiate a new object from a given class name
* @param className defines the class name to instantiate
* @returns the new object or null if the system was not able to do the instantiation
*/
static Instantiate(className) {
return InstantiationTools.Instantiate(className);
}
/**
* Polyfill for setImmediate
* @param action defines the action to execute after the current execution block
*/
static SetImmediate(action) {
TimingTools.SetImmediate(action);
}
/**
* Function indicating if a number is an exponent of 2
* @param value defines the value to test
* @returns true if the value is an exponent of 2
*/
static IsExponentOfTwo(value) {
return true;
}
/**
* Returns the nearest 32-bit single precision float representation of a Number
* @param value A Number. If the parameter is of a different type, it will get converted
* to a number or to NaN if it cannot be converted
* @returns number
*/
static FloatRound(value) {
return Math.fround(value);
}
/**
* Extracts the filename from a path
* @param path defines the path to use
* @returns the filename
*/
static GetFilename(path) {
const index = path.lastIndexOf("/");
if (index < 0) {
return path;
}
return path.substring(index + 1);
}
/**
* Extracts the "folder" part of a path (everything before the filename).
* @param uri The URI to extract the info from
* @param returnUnchangedIfNoSlash Do not touch the URI if no slashes are present
* @returns The "folder" part of the path
*/
static GetFolderPath(uri, returnUnchangedIfNoSlash = false) {
const index = uri.lastIndexOf("/");
if (index < 0) {
if (returnUnchangedIfNoSlash) {
return uri;
}
return "";
}
return uri.substring(0, index + 1);
}
/**
* Convert an angle in radians to degrees
* @param angle defines the angle to convert
* @returns the angle in degrees
*/
static ToDegrees(angle) {
return (angle * 180) / Math.PI;
}
/**
* Convert an angle in degrees to radians
* @param angle defines the angle to convert
* @returns the angle in radians
*/
static ToRadians(angle) {
return (angle * Math.PI) / 180;
}
/**
* Smooth angle changes (kind of low-pass filter), in particular for device orientation "shaking"
* Use trigonometric functions to avoid discontinuity (0/360, -180/180)
* @param previousAngle defines last angle value, in degrees
* @param newAngle defines new angle value, in degrees
* @param smoothFactor defines smoothing sensitivity; min 0: no smoothing, max 1: new data ignored
* @returns the angle in degrees
*/
static SmoothAngleChange(previousAngle, newAngle, smoothFactor = 0.9) {
const previousAngleRad = this.ToRadians(previousAngle);
const newAngleRad = this.ToRadians(newAngle);
return this.ToDegrees(Math.atan2((1 - smoothFactor) * Math.sin(newAngleRad) + smoothFactor * Math.sin(previousAngleRad), (1 - smoothFactor) * Math.cos(newAngleRad) + smoothFactor * Math.cos(previousAngleRad)));
}
/**
* Returns an array if obj is not an array
* @param obj defines the object to evaluate as an array
* @param allowsNullUndefined defines a boolean indicating if obj is allowed to be null or undefined
* @returns either obj directly if obj is an array or a new array containing obj
*/
static MakeArray(obj, allowsNullUndefined) {
if (allowsNullUndefined !== true && (obj === undefined || obj == null)) {
return null;
}
return Array.isArray(obj) ? obj : [obj];
}
/**
* Gets the pointer prefix to use
* @param engine defines the engine we are finding the prefix for
* @returns "pointer" if touch is enabled. Else returns "mouse"
*/
static GetPointerPrefix(engine) {
let eventPrefix = "pointer";
// Check if pointer events are supported
if (IsWindowObjectExist() && !window.PointerEvent) {
eventPrefix = "mouse";
}
// Special Fallback MacOS Safari...
if (engine._badDesktopOS &&
!engine._badOS &&
// And not ipad pros who claim to be macs...
!(document && "ontouchend" in document)) {
eventPrefix = "mouse";
}
return eventPrefix;
}
/**
* Sets the cors behavior on a dom element. This will add the required Tools.CorsBehavior to the element.
* @param url define the url we are trying
* @param element define the dom element where to configure the cors policy
* @param element.crossOrigin
*/
static SetCorsBehavior(url, element) {
SetCorsBehavior(url, element);
}
/**
* Sets the referrerPolicy behavior on a dom element.
* @param referrerPolicy define the referrer policy to use
* @param element define the dom element where to configure the referrer policy
* @param element.referrerPolicy
*/
static SetReferrerPolicyBehavior(referrerPolicy, element) {
element.referrerPolicy = referrerPolicy;
}
// External files
/**
* Removes unwanted characters from an url
* @param url defines the url to clean
* @returns the cleaned url
*/
static CleanUrl(url) {
url = url.replace(/#/gm, "%23");
return url;
}
/**
* Gets or sets a function used to pre-process url before using them to load assets
*/
static get PreprocessUrl() {
return FileToolsOptions.PreprocessUrl;
}
static set PreprocessUrl(processor) {
FileToolsOptions.PreprocessUrl = processor;
}
/**
* Loads an image as an HTMLImageElement.
* @param input url string, ArrayBuffer, or Blob to load
* @param onLoad callback called when the image successfully loads
* @param onError callback called when the image fails to load
* @param offlineProvider offline provider for caching
* @param mimeType optional mime type
* @param imageBitmapOptions optional the options to use when creating an ImageBitmap
* @returns the HTMLImageElement of the loaded image
*/
static LoadImage(input, onLoad, onError, offlineProvider, mimeType, imageBitmapOptions) {
return FileToolLoadImage(input, onLoad, onError, offlineProvider, mimeType, imageBitmapOptions);
}
/**
* Loads a file from a url
* @param url url string, ArrayBuffer, or Blob to load
* @param onSuccess callback called when the file successfully loads
* @param onProgress callback called while file is loading (if the server supports this mode)
* @param offlineProvider defines the offline provider for caching
* @param useArrayBuffer defines a boolean indicating that date must be returned as ArrayBuffer
* @param onError callback called when the file fails to load
* @returns a file request object
*/
static LoadFile(url, onSuccess, onProgress, offlineProvider, useArrayBuffer, onError) {
return FileToolsLoadFile(url, onSuccess, onProgress, offlineProvider, useArrayBuffer, onError);
}
/**
* Loads a file from a url
* @param url the file url to load
* @param useArrayBuffer defines a boolean indicating that date must be returned as ArrayBuffer
* @returns a promise containing an ArrayBuffer corresponding to the loaded file
*/
static LoadFileAsync(url, useArrayBuffer = true) {
return new Promise((resolve, reject) => {
FileToolsLoadFile(url, (data) => {
resolve(data);
}, undefined, undefined, useArrayBuffer, (request, exception) => {
reject(exception);
});
});
}
/**
* Get a script URL including preprocessing
* @param scriptUrl the script Url to process
* @param forceAbsoluteUrl force the script to be an absolute url (adding the current base url if necessary)
* @returns a modified URL to use
*/
static GetBabylonScriptURL(scriptUrl, forceAbsoluteUrl) {
if (!scriptUrl) {
return "";
}
// if the base URL was set, and the script Url is an absolute path change the default path
if (Tools.ScriptBaseUrl && scriptUrl.startsWith(Tools._DefaultCdnUrl)) {
// change the default host, which is https://cdn.babylonjs.com with the one defined
// make sure no trailing slash is present
const baseUrl = Tools.ScriptBaseUrl[Tools.ScriptBaseUrl.length - 1] === "/" ? Tools.ScriptBaseUrl.substring(0, Tools.ScriptBaseUrl.length - 1) : Tools.ScriptBaseUrl;
scriptUrl = scriptUrl.replace(Tools._DefaultCdnUrl, baseUrl);
}
// run the preprocessor
scriptUrl = Tools.ScriptPreprocessUrl(scriptUrl);
if (forceAbsoluteUrl) {
scriptUrl = Tools.GetAbsoluteUrl(scriptUrl);
}
return scriptUrl;
}
/**
* This function is used internally by babylon components to load a script (identified by an url). When the url returns, the
* content of this file is added into a new script element, attached to the DOM (body element)
* @param scriptUrl defines the url of the script to load
* @param onSuccess defines the callback called when the script is loaded
* @param onError defines the callback to call if an error occurs
* @param scriptId defines the id of the script element
*/
static LoadBabylonScript(scriptUrl, onSuccess, onError, scriptId) {
scriptUrl = Tools.GetBabylonScriptURL(scriptUrl);
Tools.LoadScript(scriptUrl, onSuccess, onError);
}
/**
* Load an asynchronous script (identified by an url). When the url returns, the
* content of this file is added into a new script element, attached to the DOM (body element)
* @param scriptUrl defines the url of the script to laod
* @returns a promise request object
*/
static LoadBabylonScriptAsync(scriptUrl) {
scriptUrl = Tools.GetBabylonScriptURL(scriptUrl);
return Tools.LoadScriptAsync(scriptUrl);
}
/**
* This function is used internally by babylon components to load a script (identified by an url). When the url returns, the
* content of this file is added into a new script element, attached to the DOM (body element)
* @param scriptUrl defines the url of the script to load
* @param onSuccess defines the callback called when the script is loaded
* @param onError defines the callback to call if an error occurs
* @param scriptId defines the id of the script element
*/
static LoadScript(scriptUrl, onSuccess, onError, scriptId) {
if (typeof importScripts === "function") {
try {
importScripts(scriptUrl);
onSuccess();
}
catch (e) {
onError?.(`Unable to load script '${scriptUrl}' in worker`, e);
}
return;
}
else if (!IsWindowObjectExist()) {
onError?.(`Cannot load script '${scriptUrl}' outside of a window or a worker`);
return;
}
const head = document.getElementsByTagName("head")[0];
const script = document.createElement("script");
script.setAttribute("type", "text/javascript");
script.setAttribute("src", scriptUrl);
if (scriptId) {
script.id = scriptId;
}
script.onload = () => {
if (onSuccess) {
onSuccess();
}
};
script.onerror = (e) => {
if (onError) {
onError(`Unable to load script '${scriptUrl}'`, e);
}
};
head.appendChild(script);
}
/**
* Load an asynchronous script (identified by an url). When the url returns, the
* content of this file is added into a new script element, attached to the DOM (body element)
* @param scriptUrl defines the url of the script to load
* @param scriptId defines the id of the script element
* @returns a promise request object
*/
static LoadScriptAsync(scriptUrl, scriptId) {
return new Promise((resolve, reject) => {
this.LoadScript(scriptUrl, () => {
resolve();
}, (message, exception) => {
reject(exception || new Error(message));
}, scriptId);
});
}
/**
* Loads a file from a blob
* @param fileToLoad defines the blob to use
* @param callback defines the callback to call when data is loaded
* @param progressCallback defines the callback to call during loading process
* @returns a file request object
*/
static ReadFileAsDataURL(fileToLoad, callback, progressCallback) {
const reader = new FileReader();
const request = {
onCompleteObservable: new Observable(),
abort: () => reader.abort(),
};
reader.onloadend = () => {
request.onCompleteObservable.notifyObservers(request);
};
reader.onload = (e) => {
//target doesn't have result from ts 1.3
callback(e.target["result"]);
};
reader.onprogress = progressCallback;
reader.readAsDataURL(fileToLoad);
return request;
}
/**
* Reads a file from a File object
* @param file defines the file to load
* @param onSuccess defines the callback to call when data is loaded
* @param onProgress defines the callback to call during loading process
* @param useArrayBuffer defines a boolean indicating that data must be returned as an ArrayBuffer
* @param onError defines the callback to call when an error occurs
* @returns a file request object
*/
static ReadFile(file, onSuccess, onProgress, useArrayBuffer, onError) {
return FileToolsReadFile(file, onSuccess, onProgress, useArrayBuffer, onError);
}
/**
* Creates a data url from a given string content
* @param content defines the content to convert
* @returns the new data url link
*/
static FileAsURL(content) {
const fileBlob = new Blob([content]);
const url = window.URL;
const link = url.createObjectURL(fileBlob);
return link;
}
/**
* Format the given number to a specific decimal format
* @param value defines the number to format
* @param decimals defines the number of decimals to use
* @returns the formatted string
*/
static Format(value, decimals = 2) {
return value.toFixed(decimals);
}
/**
* Tries to copy an object by duplicating every property
* @param source defines the source object
* @param destination defines the target object
* @param doNotCopyList defines a list of properties to avoid
* @param mustCopyList defines a list of properties to copy (even if they start with _)
*/
static DeepCopy(source, destination, doNotCopyList, mustCopyList) {
DeepCopier.DeepCopy(source, destination, doNotCopyList, mustCopyList);
}
/**
* Gets a boolean indicating if the given object has no own property
* @param obj defines the object to test
* @returns true if object has no own property
*/
static IsEmpty(obj) {
for (const i in obj) {
if (Object.prototype.hasOwnProperty.call(obj, i)) {
return false;
}
}
return true;
}
/**
* Function used to register events at window level
* @param windowElement defines the Window object to use
* @param events defines the events to register
*/
static RegisterTopRootEvents(windowElement, events) {
for (let index = 0; index < events.length; index++) {
const event = events[index];
windowElement.addEventListener(event.name, event.handler, false);
try {
if (window.parent) {
window.parent.addEventListener(event.name, event.handler, false);
}
}
catch (e) {
// Silently fails...
}
}
}
/**
* Function used to unregister events from window level
* @param windowElement defines the Window object to use
* @param events defines the events to unregister
*/
static UnregisterTopRootEvents(windowElement, events) {
for (let index = 0; index < events.length; index++) {
const event = events[index];
windowElement.removeEventListener(event.name, event.handler);
try {
if (windowElement.parent) {
windowElement.parent.removeEventListener(event.name, event.handler);
}
}
catch (e) {
// Silently fails...
}
}
}
/**
* Dumps the current bound framebuffer
* @param width defines the rendering width
* @param height defines the rendering height
* @param engine defines the hosting engine
* @param successCallback defines the callback triggered once the data are available
* @param mimeType defines the mime type of the result
* @param fileName defines the filename to download. If present, the result will automatically be downloaded
* @param quality The quality of the image if lossy mimeType is used (e.g. image/jpeg, image/webp). See {@link https://developer.mozilla.org/en-US/docs/Web/API/HTMLCanvasElement/toBlob | HTMLCanvasElement.toBlob()}'s `quality` parameter.
* @returns a void promise
*/
static async DumpFramebuffer(width, height, engine, successCallback, mimeType = "image/png", fileName, quality) {
throw _WarnImport("DumpTools");
}
/**
* Dumps an array buffer
* @param width defines the rendering width
* @param height defines the rendering height
* @param data the data array
* @param successCallback defines the callback triggered once the data are available
* @param mimeType defines the mime type of the result
* @param fileName defines the filename to download. If present, the result will automatically be downloaded
* @param invertY true to invert the picture in the Y dimension
* @param toArrayBuffer true to convert the data to an ArrayBuffer (encoded as `mimeType`) instead of a base64 string
* @param quality The quality of the image if lossy mimeType is used (e.g. image/jpeg, image/webp). See {@link https://developer.mozilla.org/en-US/docs/Web/API/HTMLCanvasElement/toBlob | HTMLCanvasElement.toBlob()}'s `quality` parameter.
*/
static DumpData(width, height, data, successCallback, mimeType = "image/png", fileName, invertY = false, toArrayBuffer = false, quality) {
throw _WarnImport("DumpTools");
}
// eslint-disable-next-line jsdoc/require-returns-check
/**
* Dumps an array buffer
* @param width defines the rendering width
* @param height defines the rendering height
* @param data the data array
* @param mimeType defines the mime type of the result
* @param fileName defines the filename to download. If present, the result will automatically be downloaded
* @param invertY true to invert the picture in the Y dimension
* @param toArrayBuffer true to convert the data to an ArrayBuffer (encoded as `mimeType`) instead of a base64 string
* @param quality The quality of the image if lossy mimeType is used (e.g. image/jpeg, image/webp). See {@link https://developer.mozilla.org/en-US/docs/Web/API/HTMLCanvasElement/toBlob | HTMLCanvasElement.toBlob()}'s `quality` parameter.
* @returns a promise that resolve to the final data
*/
static DumpDataAsync(width, height, data, mimeType = "image/png", fileName, invertY = false, toArrayBuffer = false, quality) {
throw _WarnImport("DumpTools");
}
static _IsOffScreenCanvas(canvas) {
return canvas.convertToBlob !== undefined;
}
/**
* Converts the canvas data to blob.
* This acts as a polyfill for browsers not supporting the to blob function.
* @param canvas Defines the canvas to extract the data from (can be an offscreen canvas)
* @param successCallback Defines the callback triggered once the data are available
* @param mimeType Defines the mime type of the result
* @param quality The quality of the image if lossy mimeType is used (e.g. image/jpeg, image/webp). See {@link https://developer.mozilla.org/en-US/docs/Web/API/HTMLCanvasElement/toBlob | HTMLCanvasElement.toBlob()}'s `quality` parameter.
*/
static ToBlob(canvas, successCallback, mimeType = "image/png", quality) {
// We need HTMLCanvasElement.toBlob for HD screenshots
if (!Tools._IsOffScreenCanvas(canvas) && !canvas.toBlob) {
// low performance polyfill based on toDataURL (https://developer.mozilla.org/en-US/docs/Web/API/HTMLCanvasElement/toBlob)
canvas.toBlob = function (callback, type, quality) {
setTimeout(() => {
const binStr = atob(this.toDataURL(type, quality).split(",")[1]), len = binStr.length, arr = new Uint8Array(len);
for (let i = 0; i < len; i++) {
arr[i] = binStr.charCodeAt(i);
}
callback(new Blob([arr]));
});
};
}
if (Tools._IsOffScreenCanvas(canvas)) {
canvas
.convertToBlob({
type: mimeType,
quality,
})
.then((blob) => successCallback(blob));
}
else {
canvas.toBlob(function (blob) {
successCallback(blob);
}, mimeType, quality);
}
}
/**
* Download a Blob object
* @param blob the Blob object
* @param fileName the file name to download
*/
static DownloadBlob(blob, fileName) {
//Creating a link if the browser have the download attribute on the a tag, to automatically start download generated image.
if ("download" in document.createElement("a")) {
if (!fileName) {
const date = new Date();
const stringDate = (date.getFullYear() + "-" + (date.getMonth() + 1)).slice(2) + "-" + date.getDate() + "_" + date.getHours() + "-" + ("0" + date.getMinutes()).slice(-2);
fileName = "screenshot_" + stringDate + ".png";
}
Tools.Download(blob, fileName);
}
else {
if (blob && typeof URL !== "undefined") {
const url = URL.createObjectURL(blob);
const newWindow = window.open("");
if (!newWindow) {
return;
}
const img = newWindow.document.createElement("img");
img.onload = function () {
// no longer need to read the blob so it's revoked
URL.revokeObjectURL(url);
};
img.src = url;
newWindow.document.body.appendChild(img);
}
}
}
/**
* Encodes the canvas data to base 64, or automatically downloads the result if `fileName` is defined.
* @param canvas The canvas to get the data from, which can be an offscreen canvas.
* @param successCallback The callback which is triggered once the data is available. If `fileName` is defined, the callback will be invoked after the download occurs, and the `data` argument will be an empty string.
* @param mimeType The mime type of the result.
* @param fileName The name of the file to download. If defined, the result will automatically be downloaded. If not defined, and `successCallback` is also not defined, the result will automatically be downloaded with an auto-generated file name.
* @param quality The quality of the image if lossy mimeType is used (e.g. image/jpeg, image/webp). See {@link https://developer.mozilla.org/en-US/docs/Web/API/HTMLCanvasElement/toBlob | HTMLCanvasElement.toBlob()}'s `quality` parameter.
*/
static EncodeScreenshotCanvasData(canvas, successCallback, mimeType = "image/png", fileName, quality) {
if (typeof fileName === "string" || !successCallback) {
this.ToBlob(canvas, function (blob) {
if (blob) {
Tools.DownloadBlob(blob, fileName);
}
if (successCallback) {
successCallback("");
}
}, mimeType, quality);
}
else if (successCallback) {
if (Tools._IsOffScreenCanvas(canvas)) {
canvas
.convertToBlob({
type: mimeType,
quality,
})
.then((blob) => {
const reader = new FileReader();
reader.readAsDataURL(blob);
reader.onloadend = () => {
const base64data = reader.result;
successCallback(base64data);
};
});
return;
}
const base64Image = canvas.toDataURL(mimeType, quality);
successCallback(base64Image);
}
}
/**
* Downloads a blob in the browser
* @param blob defines the blob to download
* @param fileName defines the name of the downloaded file
*/
static Download(blob, fileName) {
if (typeof URL === "undefined") {
return;
}
const url = window.URL.createObjectURL(blob);
const a = document.createElement("a");
document.body.appendChild(a);
a.style.display = "none";
a.href = url;
a.download = fileName;
a.addEventListener("click", () => {
if (a.parentElement) {
a.parentElement.removeChild(a);
}
});
a.click();
window.URL.revokeObjectURL(url);
}
/**
* Will return the right value of the noPreventDefault variable
* Needed to keep backwards compatibility to the old API.
*
* @param args arguments passed to the attachControl function
* @returns the correct value for noPreventDefault
*/
static BackCompatCameraNoPreventDefault(args) {
// is it used correctly?
if (typeof args[0] === "boolean") {
return args[0];
}
else if (typeof args[1] === "boolean") {
return args[1];
}
return false;
}
/**
* Captures a screenshot of the current rendering
* @see https://doc.babylonjs.com/features/featuresDeepDive/scene/renderToPNG
* @param engine defines the rendering engine
* @param camera defines the source camera
* @param size This parameter can be set to a single number or to an object with the
* following (optional) properties: precision, width, height. If a single number is passed,
* it will be used for both width and height. If an object is passed, the screenshot size
* will be derived from the parameters. The precision property is a multiplier allowing
* rendering at a higher or lower resolution
* @param successCallback defines the callback receives a single parameter which contains the
* screenshot as a string of base64-encoded characters. This string can be assigned to the
* src parameter of an ![]()
to display it
* @param mimeType defines the MIME type of the screenshot image (default: image/png).
* Check your browser for supported MIME types
* @param forceDownload force the system to download the image even if a successCallback is provided
* @param quality The quality of the image if lossy mimeType is used (e.g. image/jpeg, image/webp). See {@link https://developer.mozilla.org/en-US/docs/Web/API/HTMLCanvasElement/toBlob | HTMLCanvasElement.toBlob()}'s `quality` parameter.
*/
// eslint-disable-next-line @typescript-eslint/no-unused-vars
static CreateScreenshot(engine, camera, size, successCallback, mimeType = "image/png", forceDownload = false, quality) {
throw _WarnImport("ScreenshotTools");
}
// eslint-disable-next-line jsdoc/require-returns-check
/**
* Captures a screenshot of the current rendering
* @see https://doc.babylonjs.com/features/featuresDeepDive/scene/renderToPNG
* @param engine defines the rendering engine
* @param camera defines the source camera
* @param size This parameter can be set to a single number or to an object with the
* following (optional) properties: precision, width, height. If a single number is passed,
* it will be used for both width and height. If an object is passed, the screenshot size
* will be derived from the parameters. The precision property is a multiplier allowing
* rendering at a higher or lower resolution
* @param mimeType defines the MIME type of the screenshot image (default: image/png).
* Check your browser for supported MIME types
* @param quality The quality of the image if lossy mimeType is used (e.g. image/jpeg, image/webp). See {@link https://developer.mozilla.org/en-US/docs/Web/API/HTMLCanvasElement/toBlob | HTMLCanvasElement.toBlob()}'s `quality` parameter.
* @returns screenshot as a string of base64-encoded characters. This string can be assigned
* to the src parameter of an ![]()
to display it
*/
// eslint-disable-next-line @typescript-eslint/no-unused-vars
static CreateScreenshotAsync(engine, camera, size, mimeType = "image/png", quality) {
throw _WarnImport("ScreenshotTools");
}
/**
* Generates an image screenshot from the specified camera.
* @see https://doc.babylonjs.com/features/featuresDeepDive/scene/renderToPNG
* @param engine The engine to use for rendering
* @param camera The camera to use for rendering
* @param size This parameter can be set to a single number or to an object with the
* following (optional) properties: precision, width, height. If a single number is passed,
* it will be used for both width and height. If an object is passed, the screenshot size
* will be derived from the parameters. The precision property is a multiplier allowing
* rendering at a higher or lower resolution
* @param successCallback The callback receives a single parameter which contains the
* screenshot as a string of base64-encoded characters. This string can be assigned to the
* src parameter of an ![]()
to display it
* @param mimeType The MIME type of the screenshot image (default: image/png).
* Check your browser for supported MIME types
* @param samples Texture samples (default: 1)
* @param antialiasing Whether antialiasing should be turned on or not (default: false)
* @param fileName A name for for the downloaded file.
* @param renderSprites Whether the sprites should be rendered or not (default: false)
* @param enableStencilBuffer Whether the stencil buffer should be enabled or not (default: false)
* @param useLayerMask if the camera's layer mask should be used to filter what should be rendered (default: true)
* @param quality The quality of the image if lossy mimeType is used (e.g. image/jpeg, image/webp). See {@link https://developer.mozilla.org/en-US/docs/Web/API/HTMLCanvasElement/toBlob | HTMLCanvasElement.toBlob()}'s `quality` parameter.
*/
// eslint-disable-next-line @typescript-eslint/no-unused-vars
static CreateScreenshotUsingRenderTarget(engine, camera, size, successCallback, mimeType = "image/png", samples = 1, antialiasing = false, fileName, renderSprites = false, enableStencilBuffer = false, useLayerMask = true, quality) {
throw _WarnImport("ScreenshotTools");
}
// eslint-disable-next-line jsdoc/require-returns-check
/**
* Generates an image screenshot from the specified camera.
* @see https://doc.babylonjs.com/features/featuresDeepDive/scene/renderToPNG
* @param engine The engine to use for rendering
* @param camera The camera to use for rendering
* @param size This parameter can be set to a single number or to an object with the
* following (optional) properties: precision, width, height. If a single number is passed,
* it will be used for both width and height. If an object is passed, the screenshot size
* will be derived from the parameters. The precision property is a multiplier allowing
* rendering at a higher or lower resolution
* @param mimeType The MIME type of the screenshot image (default: image/png).
* Check your browser for supported MIME types
* @param samples Texture samples (default: 1)
* @param antialiasing Whether antialiasing should be turned on or not (default: false)
* @param fileName A name for for the downloaded file.
* @returns screenshot as a string of base64-encoded characters. This string can be assigned
* @param renderSprites Whether the sprites should be rendered or not (default: false)
* @param enableStencilBuffer Whether the stencil buffer should be enabled or not (default: false)
* @param useLayerMask if the camera's layer mask should be used to filter what should be rendered (default: true)
* @param quality The quality of the image if lossy mimeType is used (e.g. image/jpeg, image/webp). See {@link https://developer.mozilla.org/en-US/docs/Web/API/HTMLCanvasElement/toBlob | HTMLCanvasElement.toBlob()}'s `quality` parameter.
* to the src parameter of an ![]()
to display it
*/
// eslint-disable-next-line @typescript-eslint/no-unused-vars
static CreateScreenshotUsingRenderTargetAsync(engine, camera, size, mimeType = "image/png", samples = 1, antialiasing = false, fileName, renderSprites = false, enableStencilBuffer = false, useLayerMask = true, quality) {
throw _WarnImport("ScreenshotTools");
}
/**
* Implementation from http://stackoverflow.com/questions/105034/how-to-create-a-guid-uuid-in-javascript/2117523#answer-2117523
* Be aware Math.random() could cause collisions, but:
* "All but 6 of the 128 bits of the ID are randomly generated, which means that for any two ids, there's a 1 in 2^^122 (or 5.3x10^^36) chance they'll collide"
* @returns a pseudo random id
*/
static RandomId() {
return RandomGUID();
}
/**
* Test if the given uri is a base64 string
* @deprecated Please use FileTools.IsBase64DataUrl instead.
* @param uri The uri to test
* @returns True if the uri is a base64 string or false otherwise
*/
static IsBase64(uri) {
return IsBase64DataUrl(uri);
}
/**
* Decode the given base64 uri.
* @deprecated Please use FileTools.DecodeBase64UrlToBinary instead.
* @param uri The uri to decode
* @returns The decoded base64 data.
*/
static DecodeBase64(uri) {
return DecodeBase64UrlToBinary(uri);
}
/**
* Gets a value indicating the number of loading errors
* @ignorenaming
*/
// eslint-disable-next-line @typescript-eslint/naming-convention
static get errorsCount() {
return Logger.errorsCount;
}
/**
* Log a message to the console
* @param message defines the message to log
*/
static Log(message) {
Logger.Log(message);
}
/**
* Write a warning message to the console
* @param message defines the message to log
*/
static Warn(message) {
Logger.Warn(message);
}
/**
* Write an error message to the console
* @param message defines the message to log
*/
static Error(message) {
Logger.Error(message);
}
/**
* Gets current log cache (list of logs)
*/
static get LogCache() {
return Logger.LogCache;
}
/**
* Clears the log cache
*/
static ClearLogCache() {
Logger.ClearLogCache();
}
/**
* Sets the current log level (MessageLogLevel / WarningLogLevel / ErrorLogLevel)
*/
static set LogLevels(level) {
Logger.LogLevels = level;
}
/**
* Sets the current performance log level
*/
static set PerformanceLogLevel(level) {
if ((level & Tools.PerformanceUserMarkLogLevel) === Tools.PerformanceUserMarkLogLevel) {
Tools.StartPerformanceCounter = Tools._StartUserMark;
Tools.EndPerformanceCounter = Tools._EndUserMark;
return;
}
if ((level & Tools.PerformanceConsoleLogLevel) === Tools.PerformanceConsoleLogLevel) {
Tools.StartPerformanceCounter = Tools._StartPerformanceConsole;
Tools.EndPerformanceCounter = Tools._EndPerformanceConsole;
return;
}
Tools.StartPerformanceCounter = Tools._StartPerformanceCounterDisabled;
Tools.EndPerformanceCounter = Tools._EndPerformanceCounterDisabled;
}
// eslint-disable-next-line @typescript-eslint/no-unused-vars
static _StartPerformanceCounterDisabled(counterName, condition) { }
// eslint-disable-next-line @typescript-eslint/no-unused-vars
static _EndPerformanceCounterDisabled(counterName, condition) { }
static _StartUserMark(counterName, condition = true) {
if (!Tools._Performance) {
if (!IsWindowObjectExist()) {
return;
}
Tools._Performance = window.performance;
}
if (!condition || !Tools._Performance.mark) {
return;
}
Tools._Performance.mark(counterName + "-Begin");
}
static _EndUserMark(counterName, condition = true) {
if (!condition || !Tools._Performance.mark) {
return;
}
Tools._Performance.mark(counterName + "-End");
Tools._Performance.measure(counterName, counterName + "-Begin", counterName + "-End");
}
static _StartPerformanceConsole(counterName, condition = true) {
if (!condition) {
return;
}
Tools._StartUserMark(counterName, condition);
if (console.time) {
console.time(counterName);
}
}
static _EndPerformanceConsole(counterName, condition = true) {
if (!condition) {
return;
}
Tools._EndUserMark(counterName, condition);
console.timeEnd(counterName);
}
/**
* Gets either window.performance.now() if supported or Date.now() else
*/
static get Now() {
return PrecisionDate.Now;
}
/**
* This method will return the name of the class used to create the instance of the given object.
* It will works only on Javascript basic data types (number, string, ...) and instance of class declared with the @className decorator.
* @param object the object to get the class name from
* @param isType defines if the object is actually a type
* @returns the name of the class, will be "object" for a custom data type not using the @className decorator
*/
static GetClassName(object, isType = false) {
let name = null;
if (!isType && object.getClassName) {
name = object.getClassName();
}
else {
if (object instanceof Object) {
const classObj = isType ? object : Object.getPrototypeOf(object);
name = classObj.constructor["__bjsclassName__"];
}
if (!name) {
name = typeof object;
}
}
return name;
}
/**
* Gets the first element of an array satisfying a given predicate
* @param array defines the array to browse
* @param predicate defines the predicate to use
* @returns null if not found or the element
*/
static First(array, predicate) {
for (const el of array) {
if (predicate(el)) {
return el;
}
}
return null;
}
/**
* This method will return the name of the full name of the class, including its owning module (if any).
* It will works only on Javascript basic data types (number, string, ...) and instance of class declared with the @className decorator or implementing a method getClassName():string (in which case the module won't be specified).
* @param object the object to get the class name from
* @param isType defines if the object is actually a type
* @returns a string that can have two forms: "moduleName.className" if module was specified when the class' Name was registered or "className" if there was not module specified.
* @ignorenaming
*/
// eslint-disable-next-line @typescript-eslint/naming-convention
static getFullClassName(object, isType = false) {
let className = null;
let moduleName = null;
if (!isType && object.getClassName) {
className = object.getClassName();
}
else {
if (object instanceof Object) {
const classObj = isType ? object : Object.getPrototypeOf(object);
className = classObj.constructor["__bjsclassName__"];
moduleName = classObj.constructor["__bjsmoduleName__"];
}
if (!className) {
className = typeof object;
}
}
if (!className) {
return null;
}
return (moduleName != null ? moduleName + "." : "") + className;
}
/**
* Returns a promise that resolves after the given amount of time.
* @param delay Number of milliseconds to delay
* @returns Promise that resolves after the given amount of time
*/
static DelayAsync(delay) {
return new Promise((resolve) => {
setTimeout(() => {
resolve();
}, delay);
});
}
/**
* Utility function to detect if the current user agent is Safari
* @returns whether or not the current user agent is safari
*/
static IsSafari() {
if (!IsNavigatorAvailable()) {
return false;
}
return /^((?!chrome|android).)*safari/i.test(navigator.userAgent);
}
}
/**
* Enable/Disable Custom HTTP Request Headers globally.
* default = false
* @see CustomRequestHeaders
*/
Tools.UseCustomRequestHeaders = false;
/**
* Custom HTTP Request Headers to be sent with XMLHttpRequests
* i.e. when loading files, where the server/service expects an Authorization header
*/
Tools.CustomRequestHeaders = WebRequest.CustomRequestHeaders;
/**
* Extracts text content from a DOM element hierarchy
* Back Compat only, please use GetDOMTextContent instead.
*/
Tools.GetDOMTextContent = GetDOMTextContent;
/**
* @internal
*/
Tools._DefaultCdnUrl = "https://cdn.babylonjs.com";
// eslint-disable-next-line jsdoc/require-returns-check, jsdoc/require-param
/**
* @returns the absolute URL of a given (relative) url
*/
Tools.GetAbsoluteUrl = typeof document === "object"
? (url) => {
const a = document.createElement("a");
a.href = url;
return a.href;
}
: typeof URL === "function" && typeof location === "object"
? (url) => new URL(url, location.origin).href
: () => {
throw new Error("Unable to get absolute URL. Override BABYLON.Tools.GetAbsoluteUrl to a custom implementation for the current context.");
};
// Logs
/**
* No log
*/
Tools.NoneLogLevel = Logger.NoneLogLevel;
/**
* Only message logs
*/
Tools.MessageLogLevel = Logger.MessageLogLevel;
/**
* Only warning logs
*/
Tools.WarningLogLevel = Logger.WarningLogLevel;
/**
* Only error logs
*/
Tools.ErrorLogLevel = Logger.ErrorLogLevel;
/**
* All logs
*/
Tools.AllLogLevel = Logger.AllLogLevel;
/**
* Checks if the window object exists
* Back Compat only, please use IsWindowObjectExist instead.
*/
Tools.IsWindowObjectExist = IsWindowObjectExist;
// Performances
/**
* No performance log
*/
Tools.PerformanceNoneLogLevel = 0;
/**
* Use user marks to log performance
*/
Tools.PerformanceUserMarkLogLevel = 1;
/**
* Log performance to the console
*/
Tools.PerformanceConsoleLogLevel = 2;
/**
* Starts a performance counter
*/
Tools.StartPerformanceCounter = Tools._StartPerformanceCounterDisabled;
/**
* Ends a specific performance counter
*/
Tools.EndPerformanceCounter = Tools._EndPerformanceCounterDisabled;
/**
* Use this className as a decorator on a given class definition to add it a name and optionally its module.
* You can then use the Tools.getClassName(obj) on an instance to retrieve its class name.
* This method is the only way to get it done in all cases, even if the .js file declaring the class is minified
* @param name The name of the class, case should be preserved
* @param module The name of the Module hosting the class, optional, but strongly recommended to specify if possible. Case should be preserved.
* @returns a decorator function to apply on the class definition.
*/
export function className(name, module) {
return (target) => {
target["__bjsclassName__"] = name;
target["__bjsmoduleName__"] = module != null ? module : null;
};
}
/**
* An implementation of a loop for asynchronous functions.
*/
export class AsyncLoop {
/**
* Constructor.
* @param iterations the number of iterations.
* @param func the function to run each iteration
* @param successCallback the callback that will be called upon successful execution
* @param offset starting offset.
*/
constructor(
/**
* Defines the number of iterations for the loop
*/
iterations, func, successCallback, offset = 0) {
this.iterations = iterations;
this.index = offset - 1;
this._done = false;
this._fn = func;
this._successCallback = successCallback;
}
/**
* Execute the next iteration. Must be called after the last iteration was finished.
*/
executeNext() {
if (!this._done) {
if (this.index + 1 < this.iterations) {
++this.index;
this._fn(this);
}
else {
this.breakLoop();
}
}
}
/**
* Break the loop and run the success callback.
*/
breakLoop() {
this._done = true;
this._successCallback();
}
/**
* Create and run an async loop.
* @param iterations the number of iterations.
* @param fn the function to run each iteration
* @param successCallback the callback that will be called upon successful execution
* @param offset starting offset.
* @returns the created async loop object
*/
static Run(iterations, fn, successCallback, offset = 0) {
const loop = new AsyncLoop(iterations, fn, successCallback, offset);
loop.executeNext();
return loop;
}
/**
* A for-loop that will run a given number of iterations synchronous and the rest async.
* @param iterations total number of iterations
* @param syncedIterations number of synchronous iterations in each async iteration.
* @param fn the function to call each iteration.
* @param callback a success call back that will be called when iterating stops.
* @param breakFunction a break condition (optional)
* @param timeout timeout settings for the setTimeout function. default - 0.
* @returns the created async loop object
*/
static SyncAsyncForLoop(iterations, syncedIterations, fn, callback, breakFunction, timeout = 0) {
return AsyncLoop.Run(Math.ceil(iterations / syncedIterations), (loop) => {
if (breakFunction && breakFunction()) {
loop.breakLoop();
}
else {
setTimeout(() => {
for (let i = 0; i < syncedIterations; ++i) {
const iteration = loop.index * syncedIterations + i;
if (iteration >= iterations) {
break;
}
fn(iteration);
if (breakFunction && breakFunction()) {
loop.breakLoop();
break;
}
}
loop.executeNext();
}, timeout);
}
}, callback);
}
}
Tools.Mix = Mix;
Tools.IsExponentOfTwo = IsExponentOfTwo;
// Will only be define if Tools is imported freeing up some space when only engine is required
EngineStore.FallbackTexture =
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//# sourceMappingURL=tools.js.map