75 lines
3.2 KiB
Markdown
75 lines
3.2 KiB
Markdown
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# Copy to clipboard [](https://travis-ci.org/sudodoki/copy-to-clipboard)
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Simple module exposing `copy` function that will try to use [execCommand](https://developer.mozilla.org/en-US/docs/Web/API/Document/execCommand#) with fallback to IE-specific `clipboardData` interface and finally, resort to usual `prompt` with proper text content and message.
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> If you are building using [Electron](http://electronjs.org/), use [their API](https://www.electronjs.org/docs/api/clipboard).
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# Example
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```js
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import copy from 'copy-to-clipboard';
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copy('Text');
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// Copy with options
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copy('Text', {
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debug: true,
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message: 'Press #{key} to copy',
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});
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```
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# API
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`copy(text: string, options: object): boolean` — tries to copy text to clipboard. Returns `true` if no additional keystrokes were required from user (so, `execCommand`, IE's `clipboardData` worked) or `false`.
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|Value |Default |Notes|
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|------|--------|-----|
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|options.debug |false| `Boolean`. Optional. Enable output to console. |
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|options.message|Copy to clipboard: `#{key}`, Enter| `String`. Optional. Prompt message. `*` |
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|options.format|"text/html"| `String`. Optional. Set the MIME type of what you want to copy as. Use `text/html` to copy as HTML, `text/plain` to avoid inherited styles showing when pasted into rich text editor. |
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|options.onCopy|null| `function onCopy(clipboardData: object): void`. Optional. Receives the clipboardData element for adding custom behavior such as additional formats |
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`*` all occurrences of `#{key}` are replaced with `⌘+C` for macOS/iOS users, and `Ctrl+C` otherwise.
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# [Browser support](http://caniuse.com/#feat=document-execcommand)
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Works everywhere where `prompt`* is available. Works best (i.e. without additional keystrokes) in Chrome, FF, Safari 10+, and, supposedly, IE/Edge.
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Note: **does not work on some older iOS devices.**
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`*` – even though **Safari 8** has `prompt`, you cannot specify prefilled content for prompt modal – thus it **doesn't work** as expected.
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# Installation
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+ Can be used as npm package and then leveraged using commonjs bundler/loader:
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```
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npm i --save copy-to-clipboard
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```
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+ Can be utilized using [wzrd.in](https://wzrd.in/). Add following script to your page:
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```html
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<script src="https://wzrd.in/standalone/copy-to-clipboard@latest" async></script>
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```
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You will have `window.copyToClipboard` exposed for you to use.
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# UI components based on this package:
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+ [react-copy-to-clipboard](https://github.com/nkbt/react-copy-to-clipboard)
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+ [copy-button](https://github.com/sudodoki/copy-button)
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# See also:
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+ [clipboard-copy](https://github.com/feross/clipboard-copy) by [@feross](https://github.com/feross)
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+ [MDN](https://developer.mozilla.org/en-US/docs/Web/API/Document/execCommand#Browser_Compatibility)
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+ [April 2015 update on Cut and Copy Commands](http://updates.html5rocks.com/2015/04/cut-and-copy-commands)
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# Running Tests
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This project has some automated tests, that will run using [nightwatch](nightwatchjs.org) on top of [selenium](http://www.seleniumhq.org/).
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```
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npm i
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npm test
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```
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# Typescript
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This library has built-in Typescript definitions.
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```
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import * as copy from 'copy-to-clipboard';
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```
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