1 files changed, 76 insertions, 0 deletions
diff --git a/dom/plugins/base/nsPluginNativeWindow.h b/dom/plugins/base/nsPluginNativeWindow.h
new file mode 100644
index 0000000000..b880a74535
--- /dev/null
+++ b/dom/plugins/base/nsPluginNativeWindow.h
@@ -0,0 +1,76 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef _nsPluginNativeWindow_h_
+#define _nsPluginNativeWindow_h_
+
+#include "nscore.h"
+#include "nsCOMPtr.h"
+#include "nsISupportsImpl.h"
+#include "nsNPAPIPluginInstance.h"
+#include "npapi.h"
+#include "nsIWidget.h"
+
+/**
+ * base class for native plugin window implementations
+ */
+class nsPluginNativeWindow : public NPWindow {
+ public:
+  nsPluginNativeWindow() : NPWindow() { MOZ_COUNT_CTOR(nsPluginNativeWindow); }
+
+  MOZ_COUNTED_DTOR_VIRTUAL(nsPluginNativeWindow)
+
+  /**
+   *   !!! CAUTION !!!
+   *
+   * The base class |nsPluginWindow| is defined as a struct in nsplugindefs.h,
+   * thus it does not have a destructor of its own.
+   * One should never attempt to delete |nsPluginNativeWindow| object instance
+   * (or derivatives) using a pointer of |nsPluginWindow *| type. Should such
+   * necessity occur it must be properly casted first.
+   */
+
+ public:
+  nsresult GetPluginInstance(RefPtr<nsNPAPIPluginInstance>& aPluginInstance) {
+    aPluginInstance = mPluginInstance;
+    return NS_OK;
+  }
+  nsresult SetPluginInstance(nsNPAPIPluginInstance* aPluginInstance) {
+    if (mPluginInstance != aPluginInstance) mPluginInstance = aPluginInstance;
+    return NS_OK;
+  }
+
+  nsresult GetPluginWidget(nsIWidget** aWidget) const {
+    NS_IF_ADDREF(*aWidget = mWidget);
+    return NS_OK;
+  }
+  nsresult SetPluginWidget(nsIWidget* aWidget) {
+    mWidget = aWidget;
+    return NS_OK;
+  }
+
+ public:
+  virtual nsresult CallSetWindow(
+      RefPtr<nsNPAPIPluginInstance>& aPluginInstance) {
+    // null aPluginInstance means that we want to call SetWindow(null)
+    if (aPluginInstance)
+      aPluginInstance->SetWindow(this);
+    else if (mPluginInstance)
+      mPluginInstance->SetWindow(nullptr);
+
+    SetPluginInstance(aPluginInstance);
+    return NS_OK;
+  }
+
+ protected:
+  RefPtr<nsNPAPIPluginInstance> mPluginInstance;
+  nsCOMPtr<nsIWidget> mWidget;
+};
+
+nsresult PLUG_NewPluginNativeWindow(nsPluginNativeWindow** aPluginNativeWindow);
+nsresult PLUG_DeletePluginNativeWindow(
+    nsPluginNativeWindow* aPluginNativeWindow);
+
+#endif  //_nsPluginNativeWindow_h_