5.1 KiB
5.1 KiB
Frame class
At every point of time, page exposes its current frame tree via the page.mainFrame and frame.childFrames methods.
Signature:
export declare class Frame
Remarks
Frame object lifecycles are controlled by three events that are all dispatched on the page object:
The constructor for this class is marked as internal. Third-party code should not call the constructor directly or create subclasses that extend the Frame class.
Example 1
An example of dumping frame tree:
const puppeteer = require('puppeteer');
(async () => {
const browser = await puppeteer.launch();
const page = await browser.newPage();
await page.goto('https://www.google.com/chrome/browser/canary.html');
dumpFrameTree(page.mainFrame(), '');
await browser.close();
function dumpFrameTree(frame, indent) {
console.log(indent + frame.url());
for (const child of frame.childFrames()) {
dumpFrameTree(child, indent + ' ');
}
}
})();
Example 2
An example of getting text from an iframe element:
const frame = page.frames().find(frame => frame.name() === 'myframe');
const text = await frame.$eval('.selector', element => element.textContent);
console.log(text);
Methods
| Method | Modifiers | Description |
|---|---|---|
| $(selector) | This method queries the frame for the given selector. | |
| $$(selector) | This runs document.querySelectorAll in the frame and returns the result. |
|
| $$eval(selector, pageFunction, args) | ||
| $eval(selector, pageFunction, args) | ||
| $x(expression) | This method evaluates the given XPath expression and returns the results. | |
| addScriptTag(options) | Adds a <script> tag into the page with the desired url or content. |
|
| addStyleTag(options) | Adds a <link rel="stylesheet"> tag into the page with the desired url or a <style type="text/css"> tag with the content. |
|
| childFrames() | ||
| click(selector, options) | This method clicks the first element found that matches selector. |
|
| content() | ||
| evaluate(pageFunction, args) | ||
| evaluateHandle(pageFunction, args) | ||
| executionContext() | ||
| focus(selector) | This method fetches an element with selector and focuses it. |
|
| goto(url, options) | ||
| hover(selector) | This method fetches an element with selector, scrolls it into view if needed, and then uses Page.mouse to hover over the center of the element. |
|
| isDetached() | ||
| name() | ||
| parentFrame() | ||
| select(selector, values) | Triggers a change and input event once all the provided options have been selected. |
|
| setContent(html, options) | Set the content of the frame. | |
| tap(selector) | This method fetches an element with selector, scrolls it into view if needed, and then uses Page.touchscreen to tap in the center of the element. |
|
| title() | ||
| type(selector, text, options) | Sends a keydown, keypress/input, and keyup event for each character in the text. |
|
| url() | ||
| waitFor(selectorOrFunctionOrTimeout, options, args) | ||
| waitForFunction(pageFunction, options, args) | ||
| waitForNavigation(options) | ||
| waitForSelector(selector, options) | ||
| waitForTimeout(milliseconds) | Causes your script to wait for the given number of milliseconds. | |
| waitForXPath(xpath, options) |