diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..c2dd9a5 --- /dev/null +++ b/.gitignore @@ -0,0 +1,3 @@ +node_modules +dist +.vscode \ No newline at end of file diff --git a/src/index.ts b/src/index.ts new file mode 100644 index 0000000..af4d6b9 --- /dev/null +++ b/src/index.ts @@ -0,0 +1,77 @@ +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 +} diff --git a/tsconfig.json b/tsconfig.json new file mode 100644 index 0000000..9d4ad4d --- /dev/null +++ b/tsconfig.json @@ -0,0 +1,69 @@ +{ + "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. */ + } +} diff --git a/yarn.lock b/yarn.lock new file mode 100644 index 0000000..09da09f --- /dev/null +++ b/yarn.lock @@ -0,0 +1,18 @@ +# THIS IS AN AUTOGENERATED FILE. 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