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// Copyright (c) 2011 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 <algorithm>
#include "ppapi/cpp/instance.h"
#include "ppapi/cpp/module.h"
#include "ppapi/cpp/var.h"
// This is a simple C++ Pepper plugin that demonstrates HandleMessage and
// PostMessage.
// This object represents one time the page says <embed>.
class MyInstance : public pp::Instance {
public:
explicit MyInstance(PP_Instance instance) : pp::Instance(instance) {}
virtual ~MyInstance() {}
virtual void HandleMessage(const pp::Var& message_data);
};
// HandleMessage gets invoked when postMessage is called on the DOM element
// associated with this plugin instance.
// In this case, if we are given a string, we'll post a message back to
// JavaScript indicating whether or not that string is a palindrome.
void MyInstance::HandleMessage(const pp::Var& message_data) {
if (message_data.is_string()) {
std::string string_copy(message_data.AsString());
std::reverse(string_copy.begin(), string_copy.end());
bool is_palindrome(message_data.AsString() == string_copy);
PostMessage(pp::Var(is_palindrome));
}
}
// This object is the global object representing this plugin library as long
// as it is loaded.
class MyModule : public pp::Module {
public:
MyModule() : pp::Module() {}
virtual ~MyModule() {}
// Override CreateInstance to create your customized Instance object.
virtual pp::Instance* CreateInstance(PP_Instance instance) {
return new MyInstance(instance);
}
};
namespace pp {
// Factory function for your specialization of the Module object.
Module* CreateModule() {
return new MyModule();
}
} // namespace pp
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