Index: Source/modules/webusb/USBController.cpp |
diff --git a/Source/modules/webusb/USBController.cpp b/Source/modules/webusb/USBController.cpp |
new file mode 100644 |
index 0000000000000000000000000000000000000000..2dd4d1ed9970dabb2697dc623a613efedad9e83f |
--- /dev/null |
+++ b/Source/modules/webusb/USBController.cpp |
@@ -0,0 +1,53 @@ |
+// Copyright 2015 The Chromium Authors. All rights reserved. |
+// Use of this source code is governed by a BSD-style license that can be |
+// found in the LICENSE file. |
+ |
+#include "config.h" |
+#include "modules/webusb/USBController.h" |
+ |
+#include "platform/RuntimeEnabledFeatures.h" |
+#include "public/platform/modules/webusb/WebUSBClient.h" |
+ |
+namespace blink { |
+ |
+USBController::~USBController() |
+{ |
+} |
+ |
+void USBController::provideTo(LocalFrame& frame, WebUSBClient* client) |
+{ |
+ ASSERT(RuntimeEnabledFeatures::webUSBEnabled()); |
+ USBController* controller = new USBController(frame, client); |
+ WillBeHeapSupplement<LocalFrame>::provideTo(frame, supplementName(), adoptPtrWillBeNoop(controller)); |
+} |
+ |
+USBController& USBController::from(LocalFrame& frame) |
+{ |
+ USBController* controller = static_cast<USBController*>(WillBeHeapSupplement<LocalFrame>::from(frame, supplementName())); |
+ ASSERT(controller); |
+ return *controller; |
+} |
+ |
+const char* USBController::supplementName() |
+{ |
+ return "USBController"; |
+} |
+ |
+USBController::USBController(LocalFrame& frame, WebUSBClient* client) |
+ : LocalFrameLifecycleObserver(&frame) |
+ , m_client(client) |
+{ |
+} |
+ |
+void USBController::willDetachFrameHost() |
+{ |
+ m_client = nullptr; |
+} |
+ |
+DEFINE_TRACE(USBController) |
+{ |
+ WillBeHeapSupplement<LocalFrame>::trace(visitor); |
+ LocalFrameLifecycleObserver::trace(visitor); |
+} |
+ |
+} // namespace blink |