initial commit

.gitignore

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+node_modules
+dist
+.vscode

src/index.ts

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+import { Cloudinary, Configuration, Transformation } from 'cloudinary-core'
+
+let cl: Cloudinary | null = null
+
+export function initialize(options: Configuration.Options) {
+  cl = Cloudinary.new(options)
+}
+
+type ElementOrString = Element | string
+
+const defaults: Transformation | Transformation.Options = {
+  fetchFormat: 'auto',
+  quality: 'auto:good',
+}
+
+function calculateApproxRealSize(size: string, step = 200) {
+  const withRatio = (parseInt(size) * window.devicePixelRatio) | 0
+  return withRatio - (withRatio % step) + step
+}
+
+function getSizeOfElement(el: Element) {
+  const styles = window.getComputedStyle(el)
+  return {
+    width: calculateApproxRealSize(styles.width),
+    height: calculateApproxRealSize(styles.height),
+  }
+}
+
+function getSizeOfElementOrSelector(node: ElementOrString, elOrString: ElementOrString) {
+  if (typeof elOrString === 'string') {
+    const search = typeof node === 'string' ? window.document.querySelector(node) : node
+    if (!search) throw new Error('Could not find element: ' + node)
+    const closest = search.closest(elOrString)
+    if (closest) return getSizeOfElement(closest)
+    else throw new Error('Could not find element: ' + elOrString)
+  } else {
+    return getSizeOfElement(elOrString)
+  }
+}
+
+export type ImageParameters = {
+  src: string
+  options?: Transformation | Transformation.Options
+  bind?: ElementOrString | true | { width?: ElementOrString; height?: ElementOrString }
+}
+
+export function image(node: HTMLImageElement, parameters?: ImageParameters) {
+  if (!parameters) throw new Error('No url provided for cloudinary')
+
+  let { src, options, bind } = parameters
+  options = options || {}
+
+  if (!cl) throw new Error('Cloudinary not initialized')
+  if (!src) throw new Error('Src must be set in use:image')
+
+  if (bind) {
+    if (bind === true) {
+      bind = node
+    }
+
+    if (bind instanceof Element) Object.assign(options, getSizeOfElement(bind))
+    else if (typeof bind === 'string') {
+      Object.assign(options, getSizeOfElementOrSelector(node, bind))
+    } else if (typeof bind === 'object') {
+      if (bind.width) {
+        options.width = getSizeOfElementOrSelector(node, bind.width).width
+      }
+      if (bind.height) {
+        options.height = getSizeOfElementOrSelector(node, bind.height).height
+      }
+    }
+  }
+
+  const all: Transformation | Transformation.Options = { ...defaults, ...options }
+  const attrs: any = cl.imageTag(parameters.src, all).attributes()
+  node.src = attrs.src
+}

tsconfig.json

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+{
+  "compilerOptions": {
+    /* Visit https://aka.ms/tsconfig.json to read more about this file */
+
+    /* Basic Options */
+    // "incremental": true,                   /* Enable incremental compilation */
+    "target": "es2018",                          /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', 'ES2018', 'ES2019', 'ES2020', or 'ESNEXT'. */
+    "module": "commonjs",                     /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', 'es2020', or 'ESNext'. */
+    // "lib": [],                             /* Specify library files to be included in the compilation. */
+    // "allowJs": true,                       /* Allow javascript files to be compiled. */
+    // "checkJs": true,                       /* Report errors in .js files. */
+    // "jsx": "preserve",                     /* Specify JSX code generation: 'preserve', 'react-native', or 'react'. */
+    "declaration": true,                   /* Generates corresponding '.d.ts' file. */
+    // "declarationMap": true,                /* Generates a sourcemap for each corresponding '.d.ts' file. */
+    // "sourceMap": true,                     /* Generates corresponding '.map' file. */
+    // "outFile": "./",                       /* Concatenate and emit output to single file. */
+    "outDir": "./dist",                        /* Redirect output structure to the directory. */
+    "rootDir": "./src",                       /* Specify the root directory of input files. Use to control the output directory structure with --outDir. */
+    // "composite": true,                     /* Enable project compilation */
+    // "tsBuildInfoFile": "./",               /* Specify file to store incremental compilation information */
+    // "removeComments": true,                /* Do not emit comments to output. */
+    // "noEmit": true,                        /* Do not emit outputs. */
+    // "importHelpers": true,                 /* Import emit helpers from 'tslib'. */
+    // "downlevelIteration": true,            /* Provide full support for iterables in 'for-of', spread, and destructuring when targeting 'ES5' or 'ES3'. */
+    // "isolatedModules": true,               /* Transpile each file as a separate module (similar to 'ts.transpileModule'). */
+
+    /* Strict Type-Checking Options */
+    "strict": true,                           /* Enable all strict type-checking options. */
+    // "noImplicitAny": true,                 /* Raise error on expressions and declarations with an implied 'any' type. */
+    // "strictNullChecks": true,              /* Enable strict null checks. */
+    // "strictFunctionTypes": true,           /* Enable strict checking of function types. */
+    // "strictBindCallApply": true,           /* Enable strict 'bind', 'call', and 'apply' methods on functions. */
+    // "strictPropertyInitialization": true,  /* Enable strict checking of property initialization in classes. */
+    // "noImplicitThis": true,                /* Raise error on 'this' expressions with an implied 'any' type. */
+    // "alwaysStrict": true,                  /* Parse in strict mode and emit "use strict" for each source file. */
+
+    /* Additional Checks */
+    // "noUnusedLocals": true,                /* Report errors on unused locals. */
+    // "noUnusedParameters": true,            /* Report errors on unused parameters. */
+    // "noImplicitReturns": true,             /* Report error when not all code paths in function return a value. */
+    // "noFallthroughCasesInSwitch": true,    /* Report errors for fallthrough cases in switch statement. */
+
+    /* Module Resolution Options */
+    // "moduleResolution": "node",            /* Specify module resolution strategy: 'node' (Node.js) or 'classic' (TypeScript pre-1.6). */
+    // "baseUrl": "./",                       /* Base directory to resolve non-absolute module names. */
+    // "paths": {},                           /* A series of entries which re-map imports to lookup locations relative to the 'baseUrl'. */
+    // "rootDirs": [],                        /* List of root folders whose combined content represents the structure of the project at runtime. */
+    // "typeRoots": [],                       /* List of folders to include type definitions from. */
+    // "types": [],                           /* Type declaration files to be included in compilation. */
+    // "allowSyntheticDefaultImports": true,  /* Allow default imports from modules with no default export. This does not affect code emit, just typechecking. */
+    "esModuleInterop": true,                  /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */
+    // "preserveSymlinks": true,              /* Do not resolve the real path of symlinks. */
+    // "allowUmdGlobalAccess": true,          /* Allow accessing UMD globals from modules. */
+
+    /* Source Map Options */
+    // "sourceRoot": "",                      /* Specify the location where debugger should locate TypeScript files instead of source locations. */
+    // "mapRoot": "",                         /* Specify the location where debugger should locate map files instead of generated locations. */
+    // "inlineSourceMap": true,               /* Emit a single file with source maps instead of having a separate file. */
+    // "inlineSources": true,                 /* Emit the source alongside the sourcemaps within a single file; requires '--inlineSourceMap' or '--sourceMap' to be set. */
+
+    /* Experimental Options */
+    // "experimentalDecorators": true,        /* Enables experimental support for ES7 decorators. */
+    // "emitDecoratorMetadata": true,         /* Enables experimental support for emitting type metadata for decorators. */
+
+    /* Advanced Options */
+    "skipLibCheck": true,                     /* Skip type checking of declaration files. */
+    "forceConsistentCasingInFileNames": true  /* Disallow inconsistently-cased references to the same file. */
+  }
+}

yarn.lock

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+# THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY.
+# yarn lockfile v1
+
+
+cloudinary-core@^2.11.3:
+  version "2.11.3"
+  resolved "https://registry.yarnpkg.com/cloudinary-core/-/cloudinary-core-2.11.3.tgz#1440f61c6280485094aac87021b7e10f746dc69e"
+  integrity sha512-ZRnpjSgvx+LbSf+aEz5NKzxDB4Z0436aY/0BSDa90kAHiwAyd84VyEi95I74SE80e15Ri9t5S2xtksTXpzk9Xw==
+
+lodash@^4.17.20:
+  version "4.17.20"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.20.tgz#b44a9b6297bcb698f1c51a3545a2b3b368d59c52"
+  integrity sha512-PlhdFcillOINfeV7Ni6oF1TAEayyZBoZ8bcshTHqOYJYlrqzRK5hagpagky5o4HfCzzd1TRkXPMFq6cKk9rGmA==
+
+typescript@^4.0.5:
+  version "4.0.5"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.0.5.tgz#ae9dddfd1069f1cb5beb3ef3b2170dd7c1332389"
+  integrity sha512-ywmr/VrTVCmNTJ6iV2LwIrfG1P+lv6luD8sUJs+2eI9NLGigaN+nUQc13iHqisq7bra9lnmUSYqbJvegraBOPQ==