| Index: native_client_sdk/src/examples/hello_world_glibc/hello_world.cc
|
| ===================================================================
|
| --- native_client_sdk/src/examples/hello_world_glibc/hello_world.cc (revision 120871)
|
| +++ native_client_sdk/src/examples/hello_world_glibc/hello_world.cc (working copy)
|
| @@ -1,135 +0,0 @@
|
| -// Copyright (c) 2012 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.
|
| -
|
| -/// @file
|
| -/// This example demonstrates loading, running and scripting a very simple NaCl
|
| -/// module. To load the NaCl module, the browser first looks for the
|
| -/// CreateModule() factory method (at the end of this file). It calls
|
| -/// CreateModule() once to load the module code from your .nexe. After the
|
| -/// .nexe code is loaded, CreateModule() is not called again.
|
| -///
|
| -/// Once the .nexe code is loaded, the browser then calls the
|
| -/// HelloWorldModule::CreateInstance()
|
| -/// method on the object returned by CreateModule(). It calls CreateInstance()
|
| -/// each time it encounters an <embed> tag that references your NaCl module.
|
| -
|
| -#include <cstdio>
|
| -#include <cstring>
|
| -#include <string>
|
| -#include "ppapi/cpp/instance.h"
|
| -#include "ppapi/cpp/module.h"
|
| -#include "ppapi/cpp/var.h"
|
| -
|
| -#include "helper_functions.h"
|
| -
|
| -namespace hello_world {
|
| -/// Method name for ReverseText, as seen by JavaScript code.
|
| -const char* const kReverseTextMethodId = "reverseText";
|
| -
|
| -/// Method name for FortyTwo, as seen by Javascript code. @see FortyTwo()
|
| -const char* const kFortyTwoMethodId = "fortyTwo";
|
| -
|
| -/// Separator character for the reverseText method.
|
| -static const char kMessageArgumentSeparator = ':';
|
| -
|
| -/// This is the module's function that invokes FortyTwo and converts the return
|
| -/// value from an int32_t to a pp::Var for return.
|
| -pp::Var MarshallFortyTwo() {
|
| - return pp::Var(FortyTwo());
|
| -}
|
| -
|
| -/// This function is passed the arg list from the JavaScript call to
|
| -/// @a reverseText.
|
| -/// It makes sure that there is one argument and that it is a string, returning
|
| -/// an error message if it is not.
|
| -/// On good input, it calls ReverseText and returns the result. The result is
|
| -/// then sent back via a call to PostMessage.
|
| -pp::Var MarshallReverseText(const std::string& text) {
|
| - return pp::Var(ReverseText(text));
|
| -}
|
| -
|
| -/// The Instance class. One of these exists for each instance of your NaCl
|
| -/// module on the web page. The browser will ask the Module object to create
|
| -/// a new Instance for each occurrence of the <embed> tag that has these
|
| -/// attributes:
|
| -/// <pre>
|
| -/// type="application/x-nacl"
|
| -/// nacl="hello_world.nmf"
|
| -/// </pre>
|
| -class HelloWorldInstance : public pp::Instance {
|
| - public:
|
| - explicit HelloWorldInstance(PP_Instance instance) : pp::Instance(instance) {
|
| - printf("HelloWorldInstance.\n");
|
| - }
|
| - virtual ~HelloWorldInstance() {}
|
| -
|
| - /// Called by the browser to handle the postMessage() call in Javascript.
|
| - /// Detects which method is being called from the message contents, and
|
| - /// calls the appropriate function. Posts the result back to the browser
|
| - /// asynchronously.
|
| - /// @param[in] var_message The message posted by the browser. The possible
|
| - /// messages are 'fortyTwo' and 'reverseText:Hello World'. Note that
|
| - /// the 'reverseText' form contains the string to reverse following a ':'
|
| - /// separator.
|
| - virtual void HandleMessage(const pp::Var& var_message);
|
| -};
|
| -
|
| -void HelloWorldInstance::HandleMessage(const pp::Var& var_message) {
|
| - if (!var_message.is_string()) {
|
| - return;
|
| - }
|
| - std::string message = var_message.AsString();
|
| - pp::Var return_var;
|
| - if (message == kFortyTwoMethodId) {
|
| - // Note that no arguments are passed in to FortyTwo.
|
| - return_var = MarshallFortyTwo();
|
| - } else if (message.find(kReverseTextMethodId) == 0) {
|
| - // The argument to reverseText is everything after the first ':'.
|
| - size_t sep_pos = message.find_first_of(kMessageArgumentSeparator);
|
| - if (sep_pos != std::string::npos) {
|
| - std::string string_arg = message.substr(sep_pos + 1);
|
| - return_var = MarshallReverseText(string_arg);
|
| - }
|
| - }
|
| - // Post the return result back to the browser. Note that HandleMessage() is
|
| - // always called on the main thread, so it's OK to post the return message
|
| - // directly from here. The return post is asynhronous: PostMessage returns
|
| - // immediately.
|
| - PostMessage(return_var);
|
| -}
|
| -
|
| -/// The Module class. The browser calls the CreateInstance() method to create
|
| -/// an instance of your NaCl module on the web page. The browser creates a new
|
| -/// instance for each <embed> tag with
|
| -/// <code>type="application/x-nacl"</code>.
|
| -class HelloWorldModule : public pp::Module {
|
| - public:
|
| - HelloWorldModule() : pp::Module() {
|
| - printf("Got here.\n");
|
| - }
|
| - virtual ~HelloWorldModule() {}
|
| -
|
| - /// Create and return a HelloWorldInstance object.
|
| - /// @param[in] instance a handle to a plug-in instance.
|
| - /// @return a newly created HelloWorldInstance.
|
| - /// @note The browser is responsible for calling @a delete when done.
|
| - virtual pp::Instance* CreateInstance(PP_Instance instance) {
|
| - return new HelloWorldInstance(instance);
|
| - }
|
| -};
|
| -} // namespace hello_world
|
| -
|
| -
|
| -namespace pp {
|
| -/// Factory function called by the browser when the module is first loaded.
|
| -/// The browser keeps a singleton of this module. It calls the
|
| -/// CreateInstance() method on the object you return to make instances. There
|
| -/// is one instance per <embed> tag on the page. This is the main binding
|
| -/// point for your NaCl module with the browser.
|
| -/// @return new HelloWorldModule.
|
| -/// @note The browser is responsible for deleting returned @a Module.
|
| -Module* CreateModule() {
|
| - return new hello_world::HelloWorldModule();
|
| -}
|
| -} // namespace pp
|
|
|