A proposal and implementation for an initial postMessage interface. These in...

ppapi/cpp/instance.cc

 // Copyright (c) 2010 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 "ppapi/cpp/instance.h"
 
+#include "ppapi/c/dev/ppb_messaging_dev.h"
 #include "ppapi/c/dev/ppp_printing_dev.h"
 #include "ppapi/c/ppb_instance.h"
 #include "ppapi/cpp/common.h"
 #include "ppapi/cpp/dev/surface_3d_dev.h"
 #include "ppapi/cpp/graphics_2d.h"
 #include "ppapi/cpp/image_data.h"
 #include "ppapi/cpp/logging.h"
 #include "ppapi/cpp/module.h"
 #include "ppapi/cpp/module_impl.h"
 #include "ppapi/cpp/point.h"
 #include "ppapi/cpp/resource.h"
 #include "ppapi/cpp/var.h"
 
 namespace pp {
 
 namespace {
 
 template <> const char* interface_name<PPB_Instance>() {
   return PPB_INSTANCE_INTERFACE;
 }
 
+template <> const char* interface_name<PPB_Messaging_Dev>() {
+  return PPB_MESSAGING_DEV_INTERFACE;
+}
+
 }  // namespace
 
 Instance::Instance(PP_Instance instance) : pp_instance_(instance) {
 }
 
 Instance::~Instance() {
   // Ensure that all per-instance objects have been removed. Generally, these
   // objects should have their lifetime scoped to the instance, such as being
   // instance members or even implemented by your instance sub-class directly.
   //
@@ skipping 16 matching lines @@
 
 
 bool Instance::HandleDocumentLoad(const URLLoader& /*url_loader*/) {
   return false;
 }
 
 bool Instance::HandleInputEvent(const PP_InputEvent& /*event*/) {
   return false;
 }
 
+void Instance::HandleMessage(const Var& /*message_data*/) {
+  return;
+}
+
 Var Instance::GetInstanceObject() {
   return Var();
 }
 
 Var Instance::GetSelectedText(bool /* html */) {
   return Var();
 }
 
 Var Instance::GetWindowObject() {
   if (!has_interface<PPB_Instance>())
@@ skipping 34 matching lines @@
 Var Instance::ExecuteScript(const Var& script, Var* exception) {
   if (!has_interface<PPB_Instance>())
     return Var();
   return Var(Var::PassRef(),
              get_interface<PPB_Instance>()->ExecuteScript(
                  pp_instance(),
                  script.pp_var(),
                  Var::OutException(exception).get()));
 }
 
+void Instance::PostMessage(const Var& message) {
+  if (!has_interface<PPB_Messaging_Dev>())
+    return;
+  get_interface<PPB_Messaging_Dev>()->PostMessage(pp_instance(),
+                                                  message.pp_var());
+}
+
 void Instance::AddPerInstanceObject(const std::string& interface_name,
                                     void* object) {
   // Ensure we're not trying to register more than one object per interface
   // type. Otherwise, we'll get confused in GetPerInstanceObject.
   PP_DCHECK(interface_name_to_objects_.find(interface_name) ==
             interface_name_to_objects_.end());
   interface_name_to_objects_[interface_name] = object;
 }
 
 void Instance::RemovePerInstanceObject(const std::string& interface_name,
@@ skipping 21 matching lines @@
   if (!that)
     return NULL;
   InterfaceNameToObjectMap::iterator found =
       that->interface_name_to_objects_.find(interface_name);
   if (found == that->interface_name_to_objects_.end())
     return NULL;
   return found->second;
 }
 
 }  // namespace pp