mirror of
https://github.com/puppeteer/puppeteer
synced 2024-06-14 14:02:48 +00:00
d963fcdd80
Co-authored-by: release-please[bot] <55107282+release-please[bot]@users.noreply.github.com>
145 lines
4.1 KiB
Markdown
145 lines
4.1 KiB
Markdown
---
|
|
sidebar_label: Keyboard
|
|
---
|
|
|
|
# Keyboard class
|
|
|
|
Keyboard provides an api for managing a virtual keyboard. The high level api is [Keyboard.type()](./puppeteer.keyboard.type.md), which takes raw characters and generates proper keydown, keypress/input, and keyup events on your page.
|
|
|
|
#### Signature:
|
|
|
|
```typescript
|
|
export declare abstract class Keyboard
|
|
```
|
|
|
|
## Remarks
|
|
|
|
For finer control, you can use [Keyboard.down()](./puppeteer.keyboard.down.md), [Keyboard.up()](./puppeteer.keyboard.up.md), and [Keyboard.sendCharacter()](./puppeteer.keyboard.sendcharacter.md) to manually fire events as if they were generated from a real keyboard.
|
|
|
|
On macOS, keyboard shortcuts like `⌘ A` -> Select All do not work. See [\#1313](https://github.com/puppeteer/puppeteer/issues/1313).
|
|
|
|
The constructor for this class is marked as internal. Third-party code should not call the constructor directly or create subclasses that extend the `Keyboard` class.
|
|
|
|
## Example 1
|
|
|
|
An example of holding down `Shift` in order to select and delete some text:
|
|
|
|
```ts
|
|
await page.keyboard.type('Hello World!');
|
|
await page.keyboard.press('ArrowLeft');
|
|
|
|
await page.keyboard.down('Shift');
|
|
for (let i = 0; i < ' World'.length; i++)
|
|
await page.keyboard.press('ArrowLeft');
|
|
await page.keyboard.up('Shift');
|
|
|
|
await page.keyboard.press('Backspace');
|
|
// Result text will end up saying 'Hello!'
|
|
```
|
|
|
|
## Example 2
|
|
|
|
An example of pressing `A`
|
|
|
|
```ts
|
|
await page.keyboard.down('Shift');
|
|
await page.keyboard.press('KeyA');
|
|
await page.keyboard.up('Shift');
|
|
```
|
|
|
|
## Methods
|
|
|
|
<table><thead><tr><th>
|
|
|
|
Method
|
|
|
|
</th><th>
|
|
|
|
Modifiers
|
|
|
|
</th><th>
|
|
|
|
Description
|
|
|
|
</th></tr></thead>
|
|
<tbody><tr><td>
|
|
|
|
<span id="down">[down(key, options)](./puppeteer.keyboard.down.md)</span>
|
|
|
|
</td><td>
|
|
|
|
</td><td>
|
|
|
|
Dispatches a `keydown` event.
|
|
|
|
**Remarks:**
|
|
|
|
If `key` is a single character and no modifier keys besides `Shift` are being held down, a `keypress`/`input` event will also generated. The `text` option can be specified to force an input event to be generated. If `key` is a modifier key, `Shift`, `Meta`, `Control`, or `Alt`, subsequent key presses will be sent with that modifier active. To release the modifier key, use [Keyboard.up()](./puppeteer.keyboard.up.md).
|
|
|
|
After the key is pressed once, subsequent calls to [Keyboard.down()](./puppeteer.keyboard.down.md) will have [repeat](https://developer.mozilla.org/en-US/docs/Web/API/KeyboardEvent/repeat) set to true. To release the key, use [Keyboard.up()](./puppeteer.keyboard.up.md).
|
|
|
|
Modifier keys DO influence [Keyboard.down()](./puppeteer.keyboard.down.md). Holding down `Shift` will type the text in upper case.
|
|
|
|
</td></tr>
|
|
<tr><td>
|
|
|
|
<span id="press">[press(key, options)](./puppeteer.keyboard.press.md)</span>
|
|
|
|
</td><td>
|
|
|
|
</td><td>
|
|
|
|
Shortcut for [Keyboard.down()](./puppeteer.keyboard.down.md) and [Keyboard.up()](./puppeteer.keyboard.up.md).
|
|
|
|
**Remarks:**
|
|
|
|
If `key` is a single character and no modifier keys besides `Shift` are being held down, a `keypress`/`input` event will also generated. The `text` option can be specified to force an input event to be generated.
|
|
|
|
Modifier keys DO effect [Keyboard.press()](./puppeteer.keyboard.press.md). Holding down `Shift` will type the text in upper case.
|
|
|
|
</td></tr>
|
|
<tr><td>
|
|
|
|
<span id="sendcharacter">[sendCharacter(char)](./puppeteer.keyboard.sendcharacter.md)</span>
|
|
|
|
</td><td>
|
|
|
|
</td><td>
|
|
|
|
Dispatches a `keypress` and `input` event. This does not send a `keydown` or `keyup` event.
|
|
|
|
**Remarks:**
|
|
|
|
Modifier keys DO NOT effect [Keyboard.sendCharacter](./puppeteer.keyboard.sendcharacter.md). Holding down `Shift` will not type the text in upper case.
|
|
|
|
</td></tr>
|
|
<tr><td>
|
|
|
|
<span id="type">[type(text, options)](./puppeteer.keyboard.type.md)</span>
|
|
|
|
</td><td>
|
|
|
|
</td><td>
|
|
|
|
Sends a `keydown`, `keypress`/`input`, and `keyup` event for each character in the text.
|
|
|
|
**Remarks:**
|
|
|
|
To press a special key, like `Control` or `ArrowDown`, use [Keyboard.press()](./puppeteer.keyboard.press.md).
|
|
|
|
Modifier keys DO NOT effect `keyboard.type`. Holding down `Shift` will not type the text in upper case.
|
|
|
|
</td></tr>
|
|
<tr><td>
|
|
|
|
<span id="up">[up(key)](./puppeteer.keyboard.up.md)</span>
|
|
|
|
</td><td>
|
|
|
|
</td><td>
|
|
|
|
Dispatches a `keyup` event.
|
|
|
|
</td></tr>
|
|
</tbody></table>
|