invokeCDPFromSDK

Sends a CDP Method to DevTool and asynchronously receives the result.

This can be used simultaneously with the DevTool desktop application without interfering with each other.

Syntax

iOS

LynxBaseInspectorOwner.h

- (void)invokeCDPFromSDK:(NSString *)msg withCallback:(CDPResultCallback)callback;

Android

LynxBaseInspectorOwner.java

void invokeCDPFromSDK(final String cdpMsg, final CDPResultCallback callback);

Parameters

msg / cdpMsg: The message to send, a JSON string formatted as a CDP Method.
callback: A callback that conforms to the CDPResultCallback definition, used to receive the result.

Request Data Format

A JSON-formatted string.

Field	Type	Description
id	number	Message ID
method	string	Method name, please refer to CDP
params	object	Method parameters, please refer to CDP

For example, the request data for DOM.getDocument is as follows:

{
  "id": 1,
  "method": "DOM.getDocument",
  "params": {}
}

Usage Example

Implementation Steps

Implement CDPResultCallback.
Get the LynxBaseInspectorOwner instance.
Call the invokeCDPFromSDK method to send the message.

Code Example

The following example code demonstrates the complete process of calling the DOM.getDocument CDP Method after the LynxView has successfully loaded.

iOS

ViewController.m

#import <Lynx/LynxView.h>
#import <Lynx/LynxBaseInspectorOwner.h>

@interface LynxViewLifecycleClient : NSObject <LynxViewLifecycle>
@property(nonatomic, weak) LynxView* lynxView;
@end

@implementation LynxViewLifecycleClient

- (void)lynxView:(LynxView *)view didLoadFinishedWithUrl:(NSString *)url {
  [self invokeCDPMethod];
}

- (void)invokeCDPMethod {
  __strong LynxView* view = self.lynxView;
  id<LynxBaseInspectorOwner> owner = [view baseInspectorOwner];
  NSString *method = @"{\"id\":1,\"method\":\"DOM.getDocument\",\"params\":{}}";
  [owner invokeCDPFromSDK:method withCallback:^(NSString* result){
           NSLog(@"CDPResultCallback: %@", result);
         }];
}

@end

@implementation ViewController {
  LynxViewLifecycleClient *_client;
}

- (void)viewDidLoad {
  [super viewDidLoad];

  // ...

  _client = [LynxViewLifecycleClient new];
  _client.lynxView = lynxView;
  [lynxView addLifecycleClient:_client];
}

@end

Android

MainActivity.java

import android.util.Log;

import com.lynx.devtoolwrapper.CDPResultCallback;
import com.lynx.devtoolwrapper.LynxBaseInspectorOwner;
import com.lynx.tasm.LynxView;
import com.lynx.tasm.LynxViewClient;

public class MainActivity extends Activity {

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    // ...

    lynxView.addLynxViewClient(new LynxViewClient() {
      @Override
      public void onLoadSuccess() {
        invokeCDPMethod(lynxView);
      }
    });
  }

  private void invokeCDPMethod(LynxView lynxView) {
    LynxBaseInspectorOwner owner = lynxView.getBaseInspectorOwner();
    if (owner == null) {
      return;
    }
    String method = "{\"id\":1,\"method\":\"DOM.getDocument\",\"params\":{}}";
    owner.invokeCDPFromSDK(method, new CDPResultCallback() {
      @Override
      public void onResult(String result) {
        Log.i("MainActivity", "CDPResultCallback: " + result);
      }
    });
  }
}

Compatibility

LCD tables only load in the browser

#invokeCDPFromSDK

#Syntax

#iOS

#Android

#Parameters

#Request Data Format

#Usage Example

#Implementation Steps

#Code Example

#iOS

#Android

#Compatibility

invokeCDPFromSDK

Syntax

iOS

Android

Parameters

Request Data Format

Usage Example

Implementation Steps

Code Example

iOS

Android

Compatibility