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Commit 687bdff9 authored by Hongming Jin's avatar Hongming Jin
Browse files

Add shell command to enable/disable trace. 

Bug: 157601519
Test: adb shell cmd accessibility start-trace
      adb shell cmd accessibility stop-trace
Change-Id: I8c21f15e35b8031ee1cdfef02082e9aa07bb070c
parent 261569ce

services/accessibility/java/com/android/server/accessibility/AccessibilityShellCommand.java

+28 −1
Original line number Diff line number Diff line
@@ -23,6 +23,9 @@ import android.os.Process; 
import android.os.ShellCommand;

import android.os.UserHandle;



import com.android.server.LocalServices;

import com.android.server.wm.WindowManagerInternal;



import java.io.PrintWriter;



/**
@@ -31,11 +34,13 @@ import java.io.PrintWriter; 
final class AccessibilityShellCommand extends ShellCommand {

    final @NonNull AccessibilityManagerService mService;

    final @NonNull SystemActionPerformer mSystemActionPerformer;

    final @NonNull WindowManagerInternal mWindowManagerService;



    AccessibilityShellCommand(@NonNull AccessibilityManagerService service,

            @NonNull SystemActionPerformer systemActionPerformer) {

        mService = service;

        mSystemActionPerformer = systemActionPerformer;

        mWindowManagerService = LocalServices.getService(WindowManagerInternal.class);

    }



    @Override
@@ -53,6 +58,10 @@ final class AccessibilityShellCommand extends ShellCommand { 
            case "call-system-action": {

                return runCallSystemAction();

            }

            case "start-trace":

                return startTrace();

            case "stop-trace":

                return stopTrace();

        }

        return -1;

    }
@@ -98,6 +107,20 @@ final class AccessibilityShellCommand extends ShellCommand { 
        return -1;

    }



    private int startTrace() {

        WindowManagerInternal.AccessibilityControllerInternal ac =

                mWindowManagerService.getAccessibilityController();

        ac.startTrace();

        return 0;

    }



    private int stopTrace() {

        WindowManagerInternal.AccessibilityControllerInternal ac =

                mWindowManagerService.getAccessibilityController();

        ac.stopTrace();

        return 0;

    }



    private Integer parseUserId() {

        final String option = getNextOption();

        if (option != null) {
@@ -123,5 +146,9 @@ final class AccessibilityShellCommand extends ShellCommand { 
        pw.println("    Get whether binding to services provided by instant apps is allowed.");

        pw.println("  call-system-action <ACTION_ID>");

        pw.println("    Calls the system action with the given action id.");

        pw.println("  start-trace");

        pw.println("    Start the debug tracing.");

        pw.println("  stop-trace");

        pw.println("    Stop the debug tracing.");

    }

}