98 lines
14 KiB
Markdown
98 lines
14 KiB
Markdown
---
|
|
sidebar_label: Frame
|
|
---
|
|
|
|
# Frame class
|
|
|
|
Represents a DOM frame.
|
|
|
|
To understand frames, you can think of frames as `<iframe>` elements. Just like iframes, frames can be nested, and when JavaScript is executed in a frame, the JavaScript does not effect frames inside the ambient frame the JavaScript executes in.
|
|
|
|
**Signature:**
|
|
|
|
```typescript
|
|
export declare class Frame
|
|
```
|
|
|
|
## Remarks
|
|
|
|
Frame lifecycles are controlled by three events that are all dispatched on the parent [page](./puppeteer.frame.page.md):
|
|
|
|
- [PageEmittedEvents.FrameAttached](./puppeteer.pageemittedevents.md) - [PageEmittedEvents.FrameNavigated](./puppeteer.pageemittedevents.md) - [PageEmittedEvents.FrameDetached](./puppeteer.pageemittedevents.md)
|
|
|
|
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
|
|
|
|
At any point in time, [pages](./puppeteer.page.md) expose their current frame tree via the [Page.mainFrame()](./puppeteer.page.mainframe.md) and [Frame.childFrames()](./puppeteer.frame.childframes.md) methods.
|
|
|
|
## Example 2
|
|
|
|
An example of dumping frame tree:
|
|
|
|
```ts
|
|
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 3
|
|
|
|
An example of getting text from an iframe element:
|
|
|
|
```ts
|
|
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)](./puppeteer.frame._.md) | | Queries the frame for an element matching the given selector. |
|
|
| [$$(selector)](./puppeteer.frame.__.md) | | Queries the frame for all elements matching the given selector. |
|
|
| [$$eval(selector, pageFunction, args)](./puppeteer.frame.__eval.md) | | <p>Runs the given function on an array of elements matching the given selector in the frame.</p><p>If the given function returns a promise, then this method will wait till the promise resolves.</p> |
|
|
| [$eval(selector, pageFunction, args)](./puppeteer.frame._eval.md) | | <p>Runs the given function on the first element matching the given selector in the frame.</p><p>If the given function returns a promise, then this method will wait till the promise resolves.</p> |
|
|
| [$x(expression)](./puppeteer.frame._x.md) | | |
|
|
| [addScriptTag(options)](./puppeteer.frame.addscripttag.md) | | Adds a <code><script></code> tag into the page with the desired url or content. |
|
|
| [addStyleTag(options)](./puppeteer.frame.addstyletag.md) | | Adds a <code><link rel="stylesheet"></code> tag into the page with the desired URL or a <code><style type="text/css"></code> tag with the content. |
|
|
| [addStyleTag(options)](./puppeteer.frame.addstyletag_1.md) | | |
|
|
| [childFrames()](./puppeteer.frame.childframes.md) | | |
|
|
| [click(selector, options)](./puppeteer.frame.click.md) | | Clicks the first element found that matches <code>selector</code>. |
|
|
| [content()](./puppeteer.frame.content.md) | | |
|
|
| [evaluate(pageFunction, args)](./puppeteer.frame.evaluate.md) | | Behaves identically to [Page.evaluate()](./puppeteer.page.evaluate.md) except it's run within the the context of this frame. |
|
|
| [evaluateHandle(pageFunction, args)](./puppeteer.frame.evaluatehandle.md) | | Behaves identically to [Page.evaluateHandle()](./puppeteer.page.evaluatehandle.md) except it's run within the context of this frame. |
|
|
| [focus(selector)](./puppeteer.frame.focus.md) | | Focuses the first element that matches the <code>selector</code>. |
|
|
| [goto(url, options)](./puppeteer.frame.goto.md) | | Navigates a frame to the given url. |
|
|
| [hover(selector)](./puppeteer.frame.hover.md) | | Hovers the pointer over the center of the first element that matches the <code>selector</code>. |
|
|
| [isDetached()](./puppeteer.frame.isdetached.md) | | |
|
|
| [isOOPFrame()](./puppeteer.frame.isoopframe.md) | | |
|
|
| [name()](./puppeteer.frame.name.md) | | |
|
|
| [page()](./puppeteer.frame.page.md) | | |
|
|
| [parentFrame()](./puppeteer.frame.parentframe.md) | | |
|
|
| [select(selector, values)](./puppeteer.frame.select.md) | | Selects a set of value on the first <code><select></code> element that matches the <code>selector</code>. |
|
|
| [setContent(html, options)](./puppeteer.frame.setcontent.md) | | Set the content of the frame. |
|
|
| [tap(selector)](./puppeteer.frame.tap.md) | | Taps the first element that matches the <code>selector</code>. |
|
|
| [title()](./puppeteer.frame.title.md) | | |
|
|
| [type(selector, text, options)](./puppeteer.frame.type.md) | | Sends a <code>keydown</code>, <code>keypress</code>/<code>input</code>, and <code>keyup</code> event for each character in the text. |
|
|
| [url()](./puppeteer.frame.url.md) | | |
|
|
| [waitForFunction(pageFunction, options, args)](./puppeteer.frame.waitforfunction.md) | | |
|
|
| [waitForNavigation(options)](./puppeteer.frame.waitfornavigation.md) | | <p>Waits for the frame to navigate. It is useful for when you run code which will indirectly cause the frame to navigate.</p><p>Usage of the [History API](https://developer.mozilla.org/en-US/docs/Web/API/History_API) to change the URL is considered a navigation.</p> |
|
|
| [waitForSelector(selector, options)](./puppeteer.frame.waitforselector.md) | | <p>Waits for an element matching the given selector to appear in the frame.</p><p>This method works across navigations.</p> |
|
|
| [waitForTimeout(milliseconds)](./puppeteer.frame.waitfortimeout.md) | | |
|
|
| [waitForXPath(xpath, options)](./puppeteer.frame.waitforxpath.md) | | |
|