fix: allow to build options from DeviceDescriptor (#151)

Author: yury-s

api-generator/src/main/java/com/microsoft/playwright/tools/ApiGenerator.java

@@ -1102,6 +1102,10 @@ void writeTo(List<String> output, String offset) {
       }
     } else {
       writeBuilderMethods(output, bodyOffset);
+      if ("Browser.newContext.options".equals(jsonPath) ||
+          "Browser.newPage.options".equals(jsonPath)) {
+        writeDeviceDescriptorBuilder(output, bodyOffset);
+      }
     }
     output.add(offset + "}");
   }
@@ -1133,6 +1137,16 @@ private void writeConstructor(List<String> output, String bodyOffset) {
     output.add(bodyOffset + "}");
   }
 
+  private void writeDeviceDescriptorBuilder(List<String> output, String bodyOffset) {
+    output.add(bodyOffset + "public " + name + " withDevice(DeviceDescriptor device) {");
+    output.add(bodyOffset + "  withViewport(device.viewport().width(), device.viewport().height());");
+    output.add(bodyOffset + "  withUserAgent(device.userAgent());");
+    output.add(bodyOffset + "  withDeviceScaleFactor(device.deviceScaleFactor());");
+    output.add(bodyOffset + "  withIsMobile(device.isMobile());");
+    output.add(bodyOffset + "  withHasTouch(device.hasTouch());");
+    output.add(bodyOffset + "  return this;");
+    output.add(bodyOffset + "}");
+  }
 }
 
 class Enum extends TypeDefinition {

playwright/src/main/java/com/microsoft/playwright/Browser.java

@@ -326,6 +326,14 @@ public NewContextOptions withStorageState(Path storageStatePath) {
       this.storageStatePath = storageStatePath;
       return this;
     }
+    public NewContextOptions withDevice(DeviceDescriptor device) {
+      withViewport(device.viewport().width(), device.viewport().height());
+      withUserAgent(device.userAgent());
+      withDeviceScaleFactor(device.deviceScaleFactor());
+      withIsMobile(device.isMobile());
+      withHasTouch(device.hasTouch());
+      return this;
+    }
   }
   class NewPageOptions {
     public class RecordHar {
@@ -600,6 +608,14 @@ public NewPageOptions withStorageState(Path storageStatePath) {
       this.storageStatePath = storageStatePath;
       return this;
     }
+    public NewPageOptions withDevice(DeviceDescriptor device) {
+      withViewport(device.viewport().width(), device.viewport().height());
+      withUserAgent(device.userAgent());
+      withDeviceScaleFactor(device.deviceScaleFactor());
+      withIsMobile(device.isMobile());
+      withHasTouch(device.hasTouch());
+      return this;
+    }
   }
   /**
    * In case this browser is obtained using browserType.launch([options]), closes the browser and all of its pages (if any were