root/ppapi/cpp/instance.cc

DEFINITIONS

1. Init
2. DidChangeView
3. DidChangeView
4. DidChangeFocus
5. HandleDocumentLoad
6. HandleInputEvent
7. HandleMessage
8. BindGraphics
9. BindGraphics
10. IsFullFrame
11. RequestInputEvents
12. RequestFilteringInputEvents
13. ClearInputEventRequest
14. PostMessage
15. LogToConsole
16. LogToConsoleWithSource
17. AddPerInstanceObject
18. RemovePerInstanceObject
19. RemovePerInstanceObject
20. GetPerInstanceObject

// 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.

#include "ppapi/cpp/instance.h"

#include "ppapi/c/pp_errors.h"
#include "ppapi/c/ppb_console.h"
#include "ppapi/c/ppb_input_event.h"
#include "ppapi/c/ppb_instance.h"
#include "ppapi/c/ppb_messaging.h"
#include "ppapi/cpp/graphics_2d.h"
#include "ppapi/cpp/graphics_3d.h"
#include "ppapi/cpp/image_data.h"
#include "ppapi/cpp/instance_handle.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"
#include "ppapi/cpp/view.h"

namespace pp {

namespace {

template <> const char* interface_name<PPB_Console_1_0>() {
  return PPB_CONSOLE_INTERFACE_1_0;
}

template <> const char* interface_name<PPB_InputEvent_1_0>() {
  return PPB_INPUT_EVENT_INTERFACE_1_0;
}

template <> const char* interface_name<PPB_Instance_1_0>() {
  return PPB_INSTANCE_INTERFACE_1_0;
}

template <> const char* interface_name<PPB_Messaging_1_0>() {
  return PPB_MESSAGING_INTERFACE_1_0;
}

}  // namespace

Instance::Instance(PP_Instance instance) : pp_instance_(instance) {
}

Instance::~Instance() {
}

bool Instance::Init(uint32_t /*argc*/, const char* /*argn*/[],
                    const char* /*argv*/[]) {
  return true;
}

void Instance::DidChangeView(const View& view) {
  // Call the deprecated version for source backwards-compat.
  DidChangeView(view.GetRect(), view.GetClipRect());
}

void Instance::DidChangeView(const pp::Rect& /*position*/,
                             const pp::Rect& /*clip*/) {
}

void Instance::DidChangeFocus(bool /*has_focus*/) {
}


bool Instance::HandleDocumentLoad(const URLLoader& /*url_loader*/) {
  return false;
}

bool Instance::HandleInputEvent(const InputEvent& /*event*/) {
  return false;
}

void Instance::HandleMessage(const Var& /*message*/) {
  return;
}

bool Instance::BindGraphics(const Graphics2D& graphics) {
  if (!has_interface<PPB_Instance_1_0>())
    return false;
  return PP_ToBool(get_interface<PPB_Instance_1_0>()->BindGraphics(
      pp_instance(), graphics.pp_resource()));
}

bool Instance::BindGraphics(const Graphics3D& graphics) {
  if (!has_interface<PPB_Instance_1_0>())
    return false;
  return PP_ToBool(get_interface<PPB_Instance_1_0>()->BindGraphics(
      pp_instance(), graphics.pp_resource()));
}

bool Instance::IsFullFrame() {
  if (!has_interface<PPB_Instance_1_0>())
    return false;
  return PP_ToBool(get_interface<PPB_Instance_1_0>()->IsFullFrame(
      pp_instance()));
}

int32_t Instance::RequestInputEvents(uint32_t event_classes) {
  if (!has_interface<PPB_InputEvent_1_0>())
    return PP_ERROR_NOINTERFACE;
  return get_interface<PPB_InputEvent_1_0>()->RequestInputEvents(pp_instance(),
                                                                 event_classes);
}

int32_t Instance::RequestFilteringInputEvents(uint32_t event_classes) {
  if (!has_interface<PPB_InputEvent_1_0>())
    return PP_ERROR_NOINTERFACE;
  return get_interface<PPB_InputEvent_1_0>()->RequestFilteringInputEvents(
      pp_instance(), event_classes);
}

void Instance::ClearInputEventRequest(uint32_t event_classes) {
  if (!has_interface<PPB_InputEvent_1_0>())
    return;
  get_interface<PPB_InputEvent_1_0>()->ClearInputEventRequest(pp_instance(),
                                                          event_classes);
}

void Instance::PostMessage(const Var& message) {
  if (!has_interface<PPB_Messaging_1_0>())
    return;
  get_interface<PPB_Messaging_1_0>()->PostMessage(pp_instance(),
                                              message.pp_var());
}

void Instance::LogToConsole(PP_LogLevel level, const Var& value) {
  if (!has_interface<PPB_Console_1_0>())
    return;
  get_interface<PPB_Console_1_0>()->Log(
      pp_instance(), level, value.pp_var());
}

void Instance::LogToConsoleWithSource(PP_LogLevel level,
                                      const Var& source,
                                      const Var& value) {
  if (!has_interface<PPB_Console_1_0>())
    return;
  get_interface<PPB_Console_1_0>()->LogWithSource(
      pp_instance(), level, source.pp_var(), value.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,
                                       void* object) {
  InterfaceNameToObjectMap::iterator found = interface_name_to_objects_.find(
      interface_name);
  if (found == interface_name_to_objects_.end()) {
    // Attempting to unregister an object that doesn't exist or was already
    // unregistered.
    PP_DCHECK(false);
    return;
  }

  // Validate that we're removing the object we thing we are.
  PP_DCHECK(found->second == object);
  (void)object;  // Prevent warning in release mode.

  interface_name_to_objects_.erase(found);
}

// static
void Instance::RemovePerInstanceObject(const InstanceHandle& instance,
                                       const std::string& interface_name,
                                       void* object) {
  // TODO(brettw) assert we're on the main thread.
  Instance* that = Module::Get()->InstanceForPPInstance(instance.pp_instance());
  if (!that)
    return;
  that->RemovePerInstanceObject(interface_name, object);
}

// static
void* Instance::GetPerInstanceObject(PP_Instance instance,
                                     const std::string& interface_name) {
  Instance* that = Module::Get()->InstanceForPPInstance(instance);
  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