Class: Playwright::CDPSession
- Inherits:
-
PlaywrightApi
- Object
- PlaywrightApi
- Playwright::CDPSession
- Defined in:
- lib/playwright_api/cdp_session.rb
Overview
The ‘CDPSession` instances are used to talk raw Chrome Devtools Protocol:
-
protocol methods can be called with ‘session.send` method.
-
protocol events can be subscribed to with ‘session.on` method.
Useful links:
-
Documentation on DevTools Protocol can be found here: [DevTools Protocol Viewer](chromedevtools.github.io/devtools-protocol/).
-
Getting Started with DevTools Protocol: github.com/aslushnikov/getting-started-with-cdp/blob/master/README.md
“‘python sync client = page.context.new_cdp_session(page) client.send(“Animation.enable”) client.on(“Animation.animationCreated”, lambda: print(“animation created!”)) response = client.send(“Animation.getPlaybackRate”) print(“playback rate is ” + str(response)) client.send(“Animation.setPlaybackRate”,
"playbackRate": response["playbackRate"] / 2
) “‘
Instance Method Summary collapse
-
#detach ⇒ Object
Detaches the CDPSession from the target.
-
#off(event, callback) ⇒ Object
– inherited from EventEmitter –.
-
#on(event, callback) ⇒ Object
– inherited from EventEmitter –.
-
#once(event, callback) ⇒ Object
– inherited from EventEmitter –.
- #send_message(method, params: nil) ⇒ Object
Methods inherited from PlaywrightApi
Constructor Details
This class inherits a constructor from Playwright::PlaywrightApi
Instance Method Details
#detach ⇒ Object
Detaches the CDPSession from the target. Once detached, the CDPSession object won’t emit any events and can’t be used to send messages.
26 27 28 |
# File 'lib/playwright_api/cdp_session.rb', line 26 def detach wrap_impl(@impl.detach) end |
#off(event, callback) ⇒ Object
– inherited from EventEmitter –
48 49 50 |
# File 'lib/playwright_api/cdp_session.rb', line 48 def off(event, callback) event_emitter_proxy.off(event, callback) end |
#on(event, callback) ⇒ Object
– inherited from EventEmitter –
42 43 44 |
# File 'lib/playwright_api/cdp_session.rb', line 42 def on(event, callback) event_emitter_proxy.on(event, callback) end |
#once(event, callback) ⇒ Object
– inherited from EventEmitter –
36 37 38 |
# File 'lib/playwright_api/cdp_session.rb', line 36 def once(event, callback) event_emitter_proxy.once(event, callback) end |
#send_message(method, params: nil) ⇒ Object
30 31 32 |
# File 'lib/playwright_api/cdp_session.rb', line 30 def (method, params: nil) wrap_impl(@impl.(unwrap_impl(method), params: unwrap_impl(params))) end |