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/**
* Copyright 2017 Google Inc. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the 'License');
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an 'AS IS' BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import { assert } from './assert.js';
import { keyDefinitions } from './USKeyboardLayout.js';
/**
* Keyboard provides an api for managing a virtual keyboard.
* The high level api is {@link Keyboard."type"},
* which takes raw characters and generates proper keydown, keypress/input,
* and keyup events on your page.
*
* @remarks
* For finer control, you can use {@link Keyboard.down},
* {@link Keyboard.up}, and {@link Keyboard.sendCharacter}
* 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 {@link https://github.com/puppeteer/puppeteer/issues/1313 | #1313}.
*
* @example
* An example of holding down `Shift` in order to select and delete some text:
* ```js
* 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
* An example of pressing `A`
* ```js
* await page.keyboard.down('Shift');
* await page.keyboard.press('KeyA');
* await page.keyboard.up('Shift');
* ```
*
* @public
*/
export class Keyboard {
/** @internal */
constructor(client) {
/** @internal */
this._modifiers = 0;
this._pressedKeys = new Set();
this._client = client;
}
/**
* 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 {@link Keyboard.up}.
*
* After the key is pressed once, subsequent calls to
* {@link Keyboard.down} will have
* {@link https://developer.mozilla.org/en-US/docs/Web/API/KeyboardEvent/repeat | repeat}
* set to true. To release the key, use {@link Keyboard.up}.
*
* Modifier keys DO influence {@link Keyboard.down}.
* Holding down `Shift` will type the text in upper case.
*
* @param key - Name of key to press, such as `ArrowLeft`.
* See {@link KeyInput} for a list of all key names.
*
* @param options - An object of options. Accepts text which, if specified,
* generates an input event with this text.
*/
async down(key, options = { text: undefined }) {
const description = this._keyDescriptionForString(key);
const autoRepeat = this._pressedKeys.has(description.code);
this._pressedKeys.add(description.code);
this._modifiers |= this._modifierBit(description.key);
const text = options.text === undefined ? description.text : options.text;
await this._client.send('Input.dispatchKeyEvent', {
type: text ? 'keyDown' : 'rawKeyDown',
modifiers: this._modifiers,
windowsVirtualKeyCode: description.keyCode,
code: description.code,
key: description.key,
text: text,
unmodifiedText: text,
autoRepeat,
location: description.location,
isKeypad: description.location === 3,
});
}
_modifierBit(key) {
if (key === 'Alt')
return 1;
if (key === 'Control')
return 2;
if (key === 'Meta')
return 4;
if (key === 'Shift')
return 8;
return 0;
}
_keyDescriptionForString(keyString) {
const shift = this._modifiers & 8;
const description = {
key: '',
keyCode: 0,
code: '',
text: '',
location: 0,
};
const definition = keyDefinitions[keyString];
assert(definition, `Unknown key: "${keyString}"`);
if (definition.key)
description.key = definition.key;
if (shift && definition.shiftKey)
description.key = definition.shiftKey;
if (definition.keyCode)
description.keyCode = definition.keyCode;
if (shift && definition.shiftKeyCode)
description.keyCode = definition.shiftKeyCode;
if (definition.code)
description.code = definition.code;
if (definition.location)
description.location = definition.location;
if (description.key.length === 1)
description.text = description.key;
if (definition.text)
description.text = definition.text;
if (shift && definition.shiftText)
description.text = definition.shiftText;
// if any modifiers besides shift are pressed, no text should be sent
if (this._modifiers & ~8)
description.text = '';
return description;
}
/**
* Dispatches a `keyup` event.
*
* @param key - Name of key to release, such as `ArrowLeft`.
* See {@link KeyInput | KeyInput}
* for a list of all key names.
*/
async up(key) {
const description = this._keyDescriptionForString(key);
this._modifiers &= ~this._modifierBit(description.key);
this._pressedKeys.delete(description.code);
await this._client.send('Input.dispatchKeyEvent', {
type: 'keyUp',
modifiers: this._modifiers,
key: description.key,
windowsVirtualKeyCode: description.keyCode,
code: description.code,
location: description.location,
});
}
/**
* Dispatches a `keypress` and `input` event.
* This does not send a `keydown` or `keyup` event.
*
* @remarks
* Modifier keys DO NOT effect {@link Keyboard.sendCharacter | Keyboard.sendCharacter}.
* Holding down `Shift` will not type the text in upper case.
*
* @example
* ```js
* page.keyboard.sendCharacter('嗨');
* ```
*
* @param char - Character to send into the page.
*/
async sendCharacter(char) {
await this._client.send('Input.insertText', { text: char });
}
charIsKey(char) {
return !!keyDefinitions[char];
}
/**
* 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 {@link Keyboard.press}.
*
* Modifier keys DO NOT effect `keyboard.type`.
* Holding down `Shift` will not type the text in upper case.
*
* @example
* ```js
* await page.keyboard.type('Hello'); // Types instantly
* await page.keyboard.type('World', {delay: 100}); // Types slower, like a user
* ```
*
* @param text - A text to type into a focused element.
* @param options - An object of options. Accepts delay which,
* if specified, is the time to wait between `keydown` and `keyup` in milliseconds.
* Defaults to 0.
*/
async type(text, options = {}) {
const delay = options.delay || null;
for (const char of text) {
if (this.charIsKey(char)) {
await this.press(char, { delay });
}
else {
if (delay)
await new Promise((f) => setTimeout(f, delay));
await this.sendCharacter(char);
}
}
}
/**
* Shortcut for {@link Keyboard.down}
* and {@link Keyboard.up}.
*
* @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 {@link Keyboard.press}.
* Holding down `Shift` will type the text in upper case.
*
* @param key - Name of key to press, such as `ArrowLeft`.
* See {@link KeyInput} for a list of all key names.
*
* @param options - An object of options. Accepts text which, if specified,
* generates an input event with this text. Accepts delay which,
* if specified, is the time to wait between `keydown` and `keyup` in milliseconds.
* Defaults to 0.
*/
async press(key, options = {}) {
const { delay = null } = options;
await this.down(key, options);
if (delay)
await new Promise((f) => setTimeout(f, options.delay));
await this.up(key);
}
}
/**
* The Mouse class operates in main-frame CSS pixels
* relative to the top-left corner of the viewport.
* @remarks
* Every `page` object has its own Mouse, accessible with [`page.mouse`](#pagemouse).
*
* @example
* ```js
* // Using ‘page.mouse’ to trace a 100x100 square.
* await page.mouse.move(0, 0);
* await page.mouse.down();
* await page.mouse.move(0, 100);
* await page.mouse.move(100, 100);
* await page.mouse.move(100, 0);
* await page.mouse.move(0, 0);
* await page.mouse.up();
* ```
*
* **Note**: The mouse events trigger synthetic `MouseEvent`s.
* This means that it does not fully replicate the functionality of what a normal user
* would be able to do with their mouse.
*
* For example, dragging and selecting text is not possible using `page.mouse`.
* Instead, you can use the {@link https://developer.mozilla.org/en-US/docs/Web/API/DocumentOrShadowRoot/getSelection | `DocumentOrShadowRoot.getSelection()`} functionality implemented in the platform.
*
* @example
* For example, if you want to select all content between nodes:
* ```js
* await page.evaluate((from, to) => {
* const selection = from.getRootNode().getSelection();
* const range = document.createRange();
* range.setStartBefore(from);
* range.setEndAfter(to);
* selection.removeAllRanges();
* selection.addRange(range);
* }, fromJSHandle, toJSHandle);
* ```
* If you then would want to copy-paste your selection, you can use the clipboard api:
* ```js
* // The clipboard api does not allow you to copy, unless the tab is focused.
* await page.bringToFront();
* await page.evaluate(() => {
* // Copy the selected content to the clipboard
* document.execCommand('copy');
* // Obtain the content of the clipboard as a string
* return navigator.clipboard.readText();
* });
* ```
* **Note**: If you want access to the clipboard API,
* you have to give it permission to do so:
* ```js
* await browser.defaultBrowserContext().overridePermissions(
* '<your origin>', ['clipboard-read', 'clipboard-write']
* );
* ```
* @public
*/
export class Mouse {
/**
* @internal
*/
constructor(client, keyboard) {
this._x = 0;
this._y = 0;
this._button = 'none';
this._client = client;
this._keyboard = keyboard;
}
/**
* Dispatches a `mousemove` event.
* @param x - Horizontal position of the mouse.
* @param y - Vertical position of the mouse.
* @param options - Optional object. If specified, the `steps` property
* sends intermediate `mousemove` events when set to `1` (default).
*/
async move(x, y, options = {}) {
const { steps = 1 } = options;
const fromX = this._x, fromY = this._y;
this._x = x;
this._y = y;
for (let i = 1; i <= steps; i++) {
await this._client.send('Input.dispatchMouseEvent', {
type: 'mouseMoved',
button: this._button,
x: fromX + (this._x - fromX) * (i / steps),
y: fromY + (this._y - fromY) * (i / steps),
modifiers: this._keyboard._modifiers,
});
}
}
/**
* Shortcut for `mouse.move`, `mouse.down` and `mouse.up`.
* @param x - Horizontal position of the mouse.
* @param y - Vertical position of the mouse.
* @param options - Optional `MouseOptions`.
*/
async click(x, y, options = {}) {
const { delay = null } = options;
if (delay !== null) {
await Promise.all([this.move(x, y), this.down(options)]);
await new Promise((f) => setTimeout(f, delay));
await this.up(options);
}
else {
await Promise.all([
this.move(x, y),
this.down(options),
this.up(options),
]);
}
}
/**
* Dispatches a `mousedown` event.
* @param options - Optional `MouseOptions`.
*/
async down(options = {}) {
const { button = 'left', clickCount = 1 } = options;
this._button = button;
await this._client.send('Input.dispatchMouseEvent', {
type: 'mousePressed',
button,
x: this._x,
y: this._y,
modifiers: this._keyboard._modifiers,
clickCount,
});
}
/**
* Dispatches a `mouseup` event.
* @param options - Optional `MouseOptions`.
*/
async up(options = {}) {
const { button = 'left', clickCount = 1 } = options;
this._button = 'none';
await this._client.send('Input.dispatchMouseEvent', {
type: 'mouseReleased',
button,
x: this._x,
y: this._y,
modifiers: this._keyboard._modifiers,
clickCount,
});
}
/**
* Dispatches a `mousewheel` event.
* @param options - Optional: `MouseWheelOptions`.
*
* @example
* An example of zooming into an element:
* ```js
* await page.goto('https://mdn.mozillademos.org/en-US/docs/Web/API/Element/wheel_event$samples/Scaling_an_element_via_the_wheel?revision=1587366');
*
* const elem = await page.$('div');
* const boundingBox = await elem.boundingBox();
* await page.mouse.move(
* boundingBox.x + boundingBox.width / 2,
* boundingBox.y + boundingBox.height / 2
* );
*
* await page.mouse.wheel({ deltaY: -100 })
* ```
*/
async wheel(options = {}) {
const { deltaX = 0, deltaY = 0 } = options;
await this._client.send('Input.dispatchMouseEvent', {
type: 'mouseWheel',
x: this._x,
y: this._y,
deltaX,
deltaY,
modifiers: this._keyboard._modifiers,
pointerType: 'mouse',
});
}
}
/**
* The Touchscreen class exposes touchscreen events.
* @public
*/
export class Touchscreen {
/**
* @internal
*/
constructor(client, keyboard) {
this._client = client;
this._keyboard = keyboard;
}
/**
* Dispatches a `touchstart` and `touchend` event.
* @param x - Horizontal position of the tap.
* @param y - Vertical position of the tap.
*/
async tap(x, y) {
const touchPoints = [{ x: Math.round(x), y: Math.round(y) }];
await this._client.send('Input.dispatchTouchEvent', {
type: 'touchStart',
touchPoints,
modifiers: this._keyboard._modifiers,
});
await this._client.send('Input.dispatchTouchEvent', {
type: 'touchEnd',
touchPoints: [],
modifiers: this._keyboard._modifiers,
});
}
}