Initial checkin of OOPHM plugins into trunk. Testing of non-XPCOM plugins
is still required, and more platforms need to be built.
git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@5868 8db76d5a-ed1c-0410-87a9-c151d255dfc7
diff --git a/plugins/npapi/NPObjectWrapper.h b/plugins/npapi/NPObjectWrapper.h
new file mode 100644
index 0000000..89280fab
--- /dev/null
+++ b/plugins/npapi/NPObjectWrapper.h
@@ -0,0 +1,169 @@
+// Copyright 2007, Google Inc.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are met:
+//
+// 1. Redistributions of source code must retain the above copyright notice,
+// this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright notice,
+// this list of conditions and the following disclaimer in the documentation
+// and/or other materials provided with the distribution.
+// 3. Neither the name of Google Inc. nor the names of its contributors may be
+// used to endorse or promote products derived from this software without
+// specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+// EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+// OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+// WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+// OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// Modified from gears/base/npapi/plugin.h
+
+#ifndef _H_NPObjectWrapper
+#define _H_NPObjectWrapper
+
+#include <cstdio>
+#include "mozincludes.h"
+
+// This is a base class for the bridge between the JavaScript engine and the plugin.
+template<class Wrapper>
+class NPObjectWrapper : public NPObject {
+ public:
+ // NPClass callbacks.
+ static NPObject* Allocate(NPP npp, NPClass *npclass) {
+ Wrapper* obj = new Wrapper(npp);
+ return obj;
+ }
+
+ static void Deallocate(NPObject *npobj) {
+ delete static_cast<Wrapper*>(npobj);
+ }
+
+ static bool Enumeration(NPObject *npobj, NPIdentifier** value,
+ uint32_t *count) {
+ Wrapper* obj = static_cast<Wrapper*>(npobj);
+ return obj->enumeration(value, count);
+ }
+
+ static bool HasMethod(NPObject *npobj, NPIdentifier name) {
+ Wrapper* obj = static_cast<Wrapper*>(npobj);
+ return obj->hasMethod(name);
+ }
+
+ static bool Invoke(NPObject *npobj, NPIdentifier name, const NPVariant *args,
+ uint32_t num_args, NPVariant *result) {
+ Wrapper* obj = static_cast<Wrapper*>(npobj);
+ return obj->invoke(name, args, num_args, result);
+ }
+
+ static bool InvokeDefault(NPObject *npobj, const NPVariant *args,
+ uint32_t num_args, NPVariant *result) {
+ Wrapper* obj = static_cast<Wrapper*>(npobj);
+ return obj->invokeDefault(args, num_args, result);
+ }
+
+ static bool HasProperty(NPObject *npobj, NPIdentifier name) {
+ Wrapper* obj = static_cast<Wrapper*>(npobj);
+ return obj->hasProperty(name);
+ }
+
+ static bool GetProperty(NPObject *npobj, NPIdentifier name,
+ NPVariant *result) {
+ Wrapper* obj = static_cast<Wrapper*>(npobj);
+ return obj->getProperty(name, result);
+ }
+
+ static bool SetProperty(NPObject *npobj, NPIdentifier name,
+ const NPVariant *value) {
+ Wrapper* obj = static_cast<Wrapper*>(npobj);
+ return obj->setProperty(name, value);
+ }
+
+ virtual ~NPObjectWrapper() {}
+
+ /**
+ * *value must be memory allocated with NPN_MemAlloc, as the caller will call NPN_MemFree.
+ */
+ virtual bool enumeration(NPIdentifier** value, uint32_t* count) {
+ return false;
+ }
+
+ /**
+ * Caller must release the result value when it no longer needs it,
+ * so implementation must return an extra refcount.
+ */
+ virtual bool getProperty(NPIdentifier name, NPVariant *result) {
+ return false;
+ }
+
+ virtual bool hasMethod(NPIdentifier name) {
+ return false;
+ }
+
+ virtual bool hasProperty(NPIdentifier name) {
+ return false;
+ }
+
+ /**
+ * Caller must release the result value when it no longer needs it,
+ * so implementation must return an extra refcount.
+ */
+ virtual bool invoke(NPIdentifier name, const NPVariant *args,
+ uint32_t num_args, NPVariant *result) {
+ return false;
+ }
+
+ /**
+ * Caller must release the result value when it no longer needs it,
+ * so implementation must return an extra refcount.
+ */
+ virtual bool invokeDefault(const NPVariant *args, uint32_t num_args,
+ NPVariant *result) {
+ return false;
+ }
+
+ virtual bool setProperty(NPIdentifier name, const NPVariant *value) {
+ return false;
+ }
+
+ protected:
+ NPObjectWrapper(NPP instance) : npp(instance) {}
+
+ public:
+ const NPP getNPP() const {
+ return npp;
+ }
+
+ private:
+ NPP npp;
+ DISALLOW_EVIL_CONSTRUCTORS(NPObjectWrapper);
+};
+
+// Get the NPClass for a NPObject wrapper (the type must derive from NPObjectWrapper).
+template<class Wrapper>
+NPClass* GetNPClass() {
+ static NPClass plugin_class = {
+ NP_CLASS_STRUCT_VERSION,
+ NPObjectWrapper<Wrapper>::Allocate,
+ NPObjectWrapper<Wrapper>::Deallocate,
+ NULL, // Invalidate,
+ NPObjectWrapper<Wrapper>::HasMethod,
+ NPObjectWrapper<Wrapper>::Invoke,
+ NPObjectWrapper<Wrapper>::InvokeDefault,
+ NPObjectWrapper<Wrapper>::HasProperty,
+ NPObjectWrapper<Wrapper>::GetProperty,
+ NPObjectWrapper<Wrapper>::SetProperty,
+ NULL, // RemoveProperty,
+ NPObjectWrapper<Wrapper>::Enumeration,
+ };
+
+ return &plugin_class;
+}
+
+#endif // GEARS_BASE_NPAPI_PLUGIN_H__
