src/ppapi/cpp/instance.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "ppapi/cpp/instance.h"
   6
   7 #include "ppapi/c/pp_errors.h"
   8 #include "ppapi/c/ppb_console.h"
   9 #include "ppapi/c/ppb_input_event.h"
  10 #include "ppapi/c/ppb_instance.h"
  11 #include "ppapi/c/ppb_messaging.h"
  12 #include "ppapi/cpp/graphics_2d.h"
  13 #include "ppapi/cpp/graphics_3d.h"
  14 #include "ppapi/cpp/image_data.h"
  15 #include "ppapi/cpp/instance_handle.h"
  16 #include "ppapi/cpp/logging.h"
  17 #include "ppapi/cpp/module.h"
  18 #include "ppapi/cpp/module_impl.h"
  19 #include "ppapi/cpp/point.h"
  20 #include "ppapi/cpp/resource.h"
  21 #include "ppapi/cpp/var.h"
  22 #include "ppapi/cpp/view.h"
  23
  24 namespace pp {
  25
  26 namespace {
  27
  28 template <> const char* interface_name<PPB_Console_1_0>() {
  29   return PPB_CONSOLE_INTERFACE_1_0;
  30 }
  31
  32 template <> const char* interface_name<PPB_InputEvent_1_0>() {
  33   return PPB_INPUT_EVENT_INTERFACE_1_0;
  34 }
  35
  36 template <> const char* interface_name<PPB_Instance_1_0>() {
  37   return PPB_INSTANCE_INTERFACE_1_0;
  38 }
  39
  40 template <> const char* interface_name<PPB_Messaging_1_0>() {
  41   return PPB_MESSAGING_INTERFACE_1_0;
  42 }
  43
  44 }  // namespace
  45
  46 Instance::Instance(PP_Instance instance) : pp_instance_(instance) {
  47 }
  48
  49 Instance::~Instance() {
  50 }
  51
  52 bool Instance::Init(uint32_t /*argc*/, const char* /*argn*/[],
  53                     const char* /*argv*/[]) {
  54   return true;
  55 }
  56
  57 void Instance::DidChangeView(const View& view) {
  58   // Call the deprecated version for source backwards-compat.
  59   DidChangeView(view.GetRect(), view.GetClipRect());
  60 }
  61
  62 void Instance::DidChangeView(const pp::Rect& /*position*/,
  63                              const pp::Rect& /*clip*/) {
  64 }
  65
  66 void Instance::DidChangeFocus(bool /*has_focus*/) {
  67 }
  68
  69
  70 bool Instance::HandleDocumentLoad(const URLLoader& /*url_loader*/) {
  71   return false;
  72 }
  73
  74 bool Instance::HandleInputEvent(const InputEvent& /*event*/) {
  75   return false;
  76 }
  77
  78 void Instance::HandleMessage(const Var& /*message*/) {
  79   return;
  80 }
  81
  82 bool Instance::BindGraphics(const Graphics2D& graphics) {
  83   if (!has_interface<PPB_Instance_1_0>())
  84     return false;
  85   return PP_ToBool(get_interface<PPB_Instance_1_0>()->BindGraphics(
  86       pp_instance(), graphics.pp_resource()));
  87 }
  88
  89 bool Instance::BindGraphics(const Graphics3D& graphics) {
  90   if (!has_interface<PPB_Instance_1_0>())
  91     return false;
  92   return PP_ToBool(get_interface<PPB_Instance_1_0>()->BindGraphics(
  93       pp_instance(), graphics.pp_resource()));
  94 }
  95
  96 bool Instance::IsFullFrame() {
  97   if (!has_interface<PPB_Instance_1_0>())
  98     return false;
  99   return PP_ToBool(get_interface<PPB_Instance_1_0>()->IsFullFrame(
 100       pp_instance()));
 101 }
 102
 103 int32_t Instance::RequestInputEvents(uint32_t event_classes) {
 104   if (!has_interface<PPB_InputEvent_1_0>())
 105     return PP_ERROR_NOINTERFACE;
 106   return get_interface<PPB_InputEvent_1_0>()->RequestInputEvents(pp_instance(),
 107                                                                  event_classes);
 108 }
 109
 110 int32_t Instance::RequestFilteringInputEvents(uint32_t event_classes) {
 111   if (!has_interface<PPB_InputEvent_1_0>())
 112     return PP_ERROR_NOINTERFACE;
 113   return get_interface<PPB_InputEvent_1_0>()->RequestFilteringInputEvents(
 114       pp_instance(), event_classes);
 115 }
 116
 117 void Instance::ClearInputEventRequest(uint32_t event_classes) {
 118   if (!has_interface<PPB_InputEvent_1_0>())
 119     return;
 120   get_interface<PPB_InputEvent_1_0>()->ClearInputEventRequest(pp_instance(),
 121                                                           event_classes);
 122 }
 123
 124 void Instance::PostMessage(const Var& message) {
 125   if (!has_interface<PPB_Messaging_1_0>())
 126     return;
 127   get_interface<PPB_Messaging_1_0>()->PostMessage(pp_instance(),
 128                                               message.pp_var());
 129 }
 130
 131 void Instance::LogToConsole(PP_LogLevel level, const Var& value) {
 132   if (!has_interface<PPB_Console_1_0>())
 133     return;
 134   get_interface<PPB_Console_1_0>()->Log(
 135       pp_instance(), level, value.pp_var());
 136 }
 137
 138 void Instance::LogToConsoleWithSource(PP_LogLevel level,
 139                                       const Var& source,
 140                                       const Var& value) {
 141   if (!has_interface<PPB_Console_1_0>())
 142     return;
 143   get_interface<PPB_Console_1_0>()->LogWithSource(
 144       pp_instance(), level, source.pp_var(), value.pp_var());
 145 }
 146
 147 void Instance::AddPerInstanceObject(const std::string& interface_name,
 148                                     void* object) {
 149   // Ensure we're not trying to register more than one object per interface
 150   // type. Otherwise, we'll get confused in GetPerInstanceObject.
 151   PP_DCHECK(interface_name_to_objects_.find(interface_name) ==
 152             interface_name_to_objects_.end());
 153   interface_name_to_objects_[interface_name] = object;
 154 }
 155
 156 void Instance::RemovePerInstanceObject(const std::string& interface_name,
 157                                        void* object) {
 158   InterfaceNameToObjectMap::iterator found = interface_name_to_objects_.find(
 159       interface_name);
 160   if (found == interface_name_to_objects_.end()) {
 161     // Attempting to unregister an object that doesn't exist or was already
 162     // unregistered.
 163     PP_DCHECK(false);
 164     return;
 165   }
 166
 167   // Validate that we're removing the object we thing we are.
 168   PP_DCHECK(found->second == object);
 169   (void)object;  // Prevent warning in release mode.
 170
 171   interface_name_to_objects_.erase(found);
 172 }
 173
 174 // static
 175 void Instance::RemovePerInstanceObject(const InstanceHandle& instance,
 176                                        const std::string& interface_name,
 177                                        void* object) {
 178   // TODO(brettw) assert we're on the main thread.
 179   Instance* that = Module::Get()->InstanceForPPInstance(instance.pp_instance());
 180   if (!that)
 181     return;
 182   that->RemovePerInstanceObject(interface_name, object);
 183 }
 184
 185 // static
 186 void* Instance::GetPerInstanceObject(PP_Instance instance,
 187                                      const std::string& interface_name) {
 188   Instance* that = Module::Get()->InstanceForPPInstance(instance);
 189   if (!that)
 190     return NULL;
 191   InterfaceNameToObjectMap::iterator found =
 192       that->interface_name_to_objects_.find(interface_name);
 193   if (found == that->interface_name_to_objects_.end())
 194     return NULL;
 195   return found->second;
 196 }
 197
 198 }  // namespace pp