15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2011 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <algorithm> 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ppapi/cpp/instance.h" 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ppapi/cpp/module.h" 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ppapi/cpp/var.h" 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// When compiling natively on Windows, PostMessage can be #define-d to 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// something else. 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef PostMessage 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#undef PostMessage 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// This is a simple C++ Pepper plugin that demonstrates HandleMessage and 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// PostMessage. 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// This object represents one time the page says <embed>. 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class MyInstance : public pp::Instance { 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) public: 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) explicit MyInstance(PP_Instance instance) : pp::Instance(instance) {} 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual ~MyInstance() {} 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual void HandleMessage(const pp::Var& message_data); 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// HandleMessage gets invoked when postMessage is called on the DOM element 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// associated with this plugin instance. 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// In this case, if we are given a string, we'll post a message back to 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// JavaScript indicating whether or not that string is a palindrome. 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void MyInstance::HandleMessage(const pp::Var& message_data) { 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (message_data.is_string()) { 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) std::string string_copy(message_data.AsString()); 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) std::reverse(string_copy.begin(), string_copy.end()); 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool is_palindrome(message_data.AsString() == string_copy); 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) PostMessage(pp::Var(is_palindrome)); 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// This object is the global object representing this plugin library as long 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// as it is loaded. 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class MyModule : public pp::Module { 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) public: 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) MyModule() : pp::Module() {} 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual ~MyModule() {} 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Override CreateInstance to create your customized Instance object. 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual pp::Instance* CreateInstance(PP_Instance instance) { 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return new MyInstance(instance); 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace pp { 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Factory function for your specialization of the Module object. 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)Module* CreateModule() { 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return new MyModule(); 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace pp 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 64