docs: improve and add examples for clipboard (#20224)

* docs: improve and add examples for clipboard

* address feedback from jkleinsc review
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@ -4,18 +4,12 @@
Process: [Main](../glossary.md#main-process), [Renderer](../glossary.md#renderer-process)
The following example shows how to write a string to the clipboard:
```javascript
const { clipboard } = require('electron')
clipboard.writeText('Example String')
```
On Linux, there is also a `selection` clipboard. To manipulate it
you need to pass `selection` to each method:
```javascript
const { clipboard } = require('electron')
clipboard.writeText('Example String', 'selection')
console.log(clipboard.readText('selection'))
```
@ -28,56 +22,106 @@ The `clipboard` module has the following methods:
### `clipboard.readText([type])`
* `type` String (optional) - Can be `selection` or `clipboard`. `selection` is only available on Linux.
* `type` String (optional) - Can be `selection` or `clipboard`; default is 'clipboard'. `selection` is only available on Linux.
Returns `String` - The content in the clipboard as plain text.
```js
const { clipboard } = require('electron')
clipboard.writeText('hello i am a bit of text!')
const text = clipboard.readText()
console.log(text)
// hello i am a bit of text!'
```
### `clipboard.writeText(text[, type])`
* `text` String
* `type` String (optional) - Can be `selection` or `clipboard`. `selection` is only available on Linux.
* `type` String (optional) - Can be `selection` or `clipboard`; default is 'clipboard'. `selection` is only available on Linux.
Writes the `text` into the clipboard as plain text.
```js
const { clipboard } = require('electron')
const text = 'hello i am a bit of text!'
clipboard.writeText(text)
```
### `clipboard.readHTML([type])`
* `type` String (optional) - Can be `selection` or `clipboard`. `selection` is only available on Linux.
* `type` String (optional) - Can be `selection` or `clipboard`; default is 'clipboard'. `selection` is only available on Linux.
Returns `String` - The content in the clipboard as markup.
```js
const { clipboard } = require('electron')
clipboard.writeHTML('<b>Hi</b>')
const html = clipboard.readHTML()
console.log(html)
// <meta charset='utf-8'><b>Hi</b>
```
### `clipboard.writeHTML(markup[, type])`
* `markup` String
* `type` String (optional) - Can be `selection` or `clipboard`. `selection` is only available on Linux.
* `type` String (optional) - Can be `selection` or `clipboard`; default is 'clipboard'. `selection` is only available on Linux.
Writes `markup` to the clipboard.
```js
const { clipboard } = require('electron')
clipboard.writeHTML('<b>Hi</b')
```
### `clipboard.readImage([type])`
* `type` String (optional) - Can be `selection` or `clipboard`. `selection` is only available on Linux.
* `type` String (optional) - Can be `selection` or `clipboard`; default is 'clipboard'. `selection` is only available on Linux.
Returns [`NativeImage`](native-image.md) - The image content in the clipboard.
### `clipboard.writeImage(image[, type])`
* `image` [NativeImage](native-image.md)
* `type` String (optional) - Can be `selection` or `clipboard`. `selection` is only available on Linux.
* `type` String (optional) - Can be `selection` or `clipboard`; default is 'clipboard'. `selection` is only available on Linux.
Writes `image` to the clipboard.
### `clipboard.readRTF([type])`
* `type` String (optional) - Can be `selection` or `clipboard`. `selection` is only available on Linux.
* `type` String (optional) - Can be `selection` or `clipboard`; default is 'clipboard'. `selection` is only available on Linux.
Returns `String` - The content in the clipboard as RTF.
```js
const { clipboard } = require('electron')
clipboard.writeRTF('{\\rtf1\\ansi{\\fonttbl\\f0\\fswiss Helvetica;}\\f0\\pard\nThis is some {\\b bold} text.\\par\n}')
const rtf = clipboard.readRTF()
console.log(rtf)
// {\\rtf1\\ansi{\\fonttbl\\f0\\fswiss Helvetica;}\\f0\\pard\nThis is some {\\b bold} text.\\par\n}
```
### `clipboard.writeRTF(text[, type])`
* `text` String
* `type` String (optional) - Can be `selection` or `clipboard`. `selection` is only available on Linux.
* `type` String (optional) - Can be `selection` or `clipboard`; default is 'clipboard'. `selection` is only available on Linux.
Writes the `text` into the clipboard in RTF.
```js
const { clipboard } = require('electron')
const rtf = '{\\rtf1\\ansi{\\fonttbl\\f0\\fswiss Helvetica;}\\f0\\pard\nThis is some {\\b bold} text.\\par\n}'
clipboard.writeRTF(rtf)
```
### `clipboard.readBookmark()` _macOS_ _Windows_
Returns `Object`:
@ -93,7 +137,7 @@ bookmark is unavailable.
* `title` String
* `url` String
* `type` String (optional) - Can be `selection` or `clipboard`. `selection` is only available on Linux.
* `type` String (optional) - Can be `selection` or `clipboard`; default is 'clipboard'. `selection` is only available on Linux.
Writes the `title` and `url` into the clipboard as a bookmark.
@ -102,7 +146,9 @@ you can use `clipboard.write` to write both a bookmark and fallback text to the
clipboard.
```js
clipboard.write({
const { clipboard } = require('electron')
clipboard.writeBookmark({
text: 'https://electronjs.org',
bookmark: 'Electron Homepage'
})
@ -110,39 +156,50 @@ clipboard.write({
### `clipboard.readFindText()` _macOS_
Returns `String` - The text on the find pasteboard. This method uses synchronous
IPC when called from the renderer process. The cached value is reread from the
find pasteboard whenever the application is activated.
Returns `String` - The text on the find pasteboard, which is the pasteboard that holds information about the current state of the active applications find panel.
This method uses synchronous IPC when called from the renderer process.
The cached value is reread from the find pasteboard whenever the application is activated.
### `clipboard.writeFindText(text)` _macOS_
* `text` String
Writes the `text` into the find pasteboard as plain text. This method uses
synchronous IPC when called from the renderer process.
Writes the `text` into the find pasteboard (the pasteboard that holds information about the current state of the active applications find panel) as plain text. This method uses synchronous IPC when called from the renderer process.
### `clipboard.clear([type])`
* `type` String (optional) - Can be `selection` or `clipboard`. `selection` is only available on Linux.
* `type` String (optional) - Can be `selection` or `clipboard`; default is 'clipboard'. `selection` is only available on Linux.
Clears the clipboard content.
### `clipboard.availableFormats([type])`
* `type` String (optional) - Can be `selection` or `clipboard`. `selection` is only available on Linux.
* `type` String (optional) - Can be `selection` or `clipboard`; default is 'clipboard'. `selection` is only available on Linux.
Returns `String[]` - An array of supported formats for the clipboard `type`.
```js
const { clipboard } = require('electron')
const formats = clipboard.availableFormats()
console.log(formats)
// [ 'text/plain', 'text/html' ]
```
### `clipboard.has(format[, type])` _Experimental_
* `format` String
* `type` String (optional) - Can be `selection` or `clipboard`. `selection` is only available on Linux.
* `type` String (optional) - Can be `selection` or `clipboard`; default is 'clipboard'. `selection` is only available on Linux.
Returns `Boolean` - Whether the clipboard supports the specified `format`.
```javascript
```js
const { clipboard } = require('electron')
console.log(clipboard.has('<p>selection</p>'))
const hasFormat = clipboard.has('<p>selection</p>')
console.log(hasFormat)
// 'true' or 'false
```
### `clipboard.read(format)` _Experimental_
@ -157,14 +214,33 @@ Returns `String` - Reads `format` type from the clipboard.
Returns `Buffer` - Reads `format` type from the clipboard.
```js
const { clipboard } = require('electron')
const buffer = Buffer.from('this is binary', 'utf8')
clipboard.writeBuffer('public.utf8-plain-text', buffer)
const ret = clipboard.readBuffer('public.utf8-plain-text')
console.log(buffer.equals(out))
// true
```
### `clipboard.writeBuffer(format, buffer[, type])` _Experimental_
* `format` String
* `buffer` Buffer
* `type` String (optional) - Can be `selection` or `clipboard`. `selection` is only available on Linux.
* `type` String (optional) - Can be `selection` or `clipboard`; default is 'clipboard'. `selection` is only available on Linux.
Writes the `buffer` into the clipboard as `format`.
```js
const { clipboard } = require('electron')
const buffer = Buffer.from('writeBuffer', 'utf8')
clipboard.writeBuffer('public.utf8-plain-text', buffer)
```
### `clipboard.write(data[, type])`
* `data` Object
@ -173,10 +249,29 @@ Writes the `buffer` into the clipboard as `format`.
* `image` [NativeImage](native-image.md) (optional)
* `rtf` String (optional)
* `bookmark` String (optional) - The title of the URL at `text`.
* `type` String (optional) - Can be `selection` or `clipboard`. `selection` is only available on Linux.
* `type` String (optional) - Can be `selection` or `clipboard`; default is 'clipboard'. `selection` is only available on Linux.
```javascript
const { clipboard } = require('electron')
clipboard.write({ text: 'test', html: '<b>test</b>' })
```
Writes `data` to the clipboard.
```js
const { clipboard } = require('electron')
clipboard.write({
text: 'test',
html: '<b>Hi</b>',
rtf: '{\\rtf1\\utf8 text}',
bookmark: 'a title'
})
console.log(clipboard.readText())
// 'test'
console.log(clipboard.readHTML())
// <meta charset='utf-8'><b>Hi</b>
console.log(clipboard.readRTF())
// '{\\rtf1\\utf8 text}'
console.log(clipboard.readBookmark())
// { title: 'a title', url: 'test' }
```