src/ppapi/cpp/private/flash.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/private/flash.h"
   6
   7 #include <string.h>
   8
   9 #include "ppapi/c/pp_bool.h"
  10 #include "ppapi/c/pp_errors.h"
  11 #include "ppapi/cpp/dev/device_ref_dev.h"
  12 #include "ppapi/cpp/dev/video_capture_dev.h"
  13 #include "ppapi/cpp/image_data.h"
  14 #include "ppapi/cpp/instance_handle.h"
  15 #include "ppapi/cpp/module.h"
  16 #include "ppapi/cpp/module_impl.h"
  17 #include "ppapi/cpp/point.h"
  18 #include "ppapi/cpp/rect.h"
  19 #include "ppapi/cpp/trusted/browser_font_trusted.h"
  20 #include "ppapi/cpp/url_request_info.h"
  21 #include "ppapi/cpp/var.h"
  22 #include "ppapi/c/private/ppb_flash.h"
  23 #include "ppapi/c/private/ppb_flash_print.h"
  24
  25 namespace pp {
  26
  27 namespace {
  28
  29 template <> const char* interface_name<PPB_Flash_13_0>() {
  30   return PPB_FLASH_INTERFACE_13_0;
  31 }
  32
  33 template <> const char* interface_name<PPB_Flash_12_6>() {
  34   return PPB_FLASH_INTERFACE_12_6;
  35 }
  36
  37 template <> const char* interface_name<PPB_Flash_12_5>() {
  38   return PPB_FLASH_INTERFACE_12_5;
  39 }
  40
  41 template <> const char* interface_name<PPB_Flash_12_4>() {
  42   return PPB_FLASH_INTERFACE_12_4;
  43 }
  44
  45 template <> const char* interface_name<PPB_Flash_Print_1_0>() {
  46   return PPB_FLASH_PRINT_INTERFACE_1_0;
  47 }
  48
  49 // The combined Flash interface is all Flash v12.* interfaces. All v12
  50 // interfaces just append one or more functions to the previous one, so we can
  51 // have this meta one at the most recent version. Function pointers will be
  52 // null if they're not supported on the current Chrome version.
  53 bool initialized_combined_interface = false;
  54 PPB_Flash_12_6 flash_12_combined_interface;
  55
  56 // Makes sure that the most recent version is loaded into the combined
  57 // interface struct above. Any unsupported functions will be NULL. If there
  58 // is no Flash interface supported, all functions will be NULL.
  59 void InitializeCombinedInterface() {
  60   if (initialized_combined_interface)
  61     return;
  62   if (has_interface<PPB_Flash_12_6>()) {
  63     memcpy(&flash_12_combined_interface, get_interface<PPB_Flash_12_6>(),
  64            sizeof(PPB_Flash_12_6));
  65   } else if (has_interface<PPB_Flash_12_5>()) {
  66     memcpy(&flash_12_combined_interface, get_interface<PPB_Flash_12_5>(),
  67            sizeof(PPB_Flash_12_5));
  68   } else if (has_interface<PPB_Flash_12_4>()) {
  69     memcpy(&flash_12_combined_interface, get_interface<PPB_Flash_12_4>(),
  70            sizeof(PPB_Flash_12_4));
  71   }
  72   initialized_combined_interface = true;
  73 }
  74
  75 }  // namespace
  76
  77 namespace flash {
  78
  79 // static
  80 bool Flash::IsAvailable() {
  81   return has_interface<PPB_Flash_13_0>() ||
  82          has_interface<PPB_Flash_12_6>() ||
  83          has_interface<PPB_Flash_12_5>() ||
  84          has_interface<PPB_Flash_12_4>();
  85 }
  86
  87 // static
  88 void Flash::SetInstanceAlwaysOnTop(const InstanceHandle& instance,
  89                                    bool on_top) {
  90   InitializeCombinedInterface();
  91   if (has_interface<PPB_Flash_13_0>()) {
  92     get_interface<PPB_Flash_13_0>()->SetInstanceAlwaysOnTop(
  93         instance.pp_instance(), PP_FromBool(on_top));
  94   } else if (flash_12_combined_interface.SetInstanceAlwaysOnTop) {
  95     flash_12_combined_interface.SetInstanceAlwaysOnTop(
  96         instance.pp_instance(), PP_FromBool(on_top));
  97   }
  98 }
  99
 100 // static
 101 bool Flash::DrawGlyphs(const InstanceHandle& instance,
 102                        ImageData* image,
 103                        const BrowserFontDescription& font_desc,
 104                        uint32_t color,
 105                        const Point& position,
 106                        const Rect& clip,
 107                        const float transformation[3][3],
 108                        bool allow_subpixel_aa,
 109                        uint32_t glyph_count,
 110                        const uint16_t glyph_indices[],
 111                        const PP_Point glyph_advances[]) {
 112   InitializeCombinedInterface();
 113   if (has_interface<PPB_Flash_13_0>()) {
 114     return PP_ToBool(get_interface<PPB_Flash_13_0>()->DrawGlyphs(
 115         instance.pp_instance(),
 116         image->pp_resource(),
 117         &font_desc.pp_font_description(),
 118         color,
 119         &position.pp_point(),
 120         &clip.pp_rect(),
 121         transformation,
 122         PP_FromBool(allow_subpixel_aa),
 123         glyph_count,
 124         glyph_indices,
 125         glyph_advances));
 126   }
 127   if (flash_12_combined_interface.DrawGlyphs) {
 128     return PP_ToBool(flash_12_combined_interface.DrawGlyphs(
 129         instance.pp_instance(),
 130         image->pp_resource(),
 131         &font_desc.pp_font_description(),
 132         color,
 133         &position.pp_point(),
 134         &clip.pp_rect(),
 135         transformation,
 136         PP_FromBool(allow_subpixel_aa),
 137         glyph_count,
 138         glyph_indices,
 139         glyph_advances));
 140   }
 141   return false;
 142 }
 143
 144 // static
 145 Var Flash::GetProxyForURL(const InstanceHandle& instance,
 146                           const std::string& url) {
 147   InitializeCombinedInterface();
 148   if (has_interface<PPB_Flash_13_0>()) {
 149     return Var(PASS_REF, get_interface<PPB_Flash_13_0>()->GetProxyForURL(
 150         instance.pp_instance(), url.c_str()));
 151   }
 152   if (flash_12_combined_interface.GetProxyForURL) {
 153     return Var(PASS_REF, flash_12_combined_interface.GetProxyForURL(
 154         instance.pp_instance(), url.c_str()));
 155   }
 156   return Var();
 157 }
 158
 159 // static
 160 int32_t Flash::Navigate(const URLRequestInfo& request_info,
 161                         const std::string& target,
 162                         bool from_user_action) {
 163   InitializeCombinedInterface();
 164   if (has_interface<PPB_Flash_13_0>()) {
 165     return get_interface<PPB_Flash_13_0>()->Navigate(
 166         request_info.pp_resource(),
 167         target.c_str(),
 168         PP_FromBool(from_user_action));
 169   }
 170   if (flash_12_combined_interface.Navigate) {
 171     return flash_12_combined_interface.Navigate(
 172         request_info.pp_resource(),
 173         target.c_str(),
 174         PP_FromBool(from_user_action));
 175   }
 176   return PP_ERROR_FAILED;
 177 }
 178
 179 // static
 180 double Flash::GetLocalTimeZoneOffset(const InstanceHandle& instance,
 181                                      PP_Time t) {
 182   InitializeCombinedInterface();
 183   if (has_interface<PPB_Flash_13_0>()) {
 184     return get_interface<PPB_Flash_13_0>()->GetLocalTimeZoneOffset(
 185         instance.pp_instance(), t);
 186   }
 187   if (flash_12_combined_interface.GetLocalTimeZoneOffset) {
 188     return flash_12_combined_interface.GetLocalTimeZoneOffset(
 189         instance.pp_instance(), t);
 190   }
 191   return 0.0;
 192 }
 193
 194 // static
 195 Var Flash::GetCommandLineArgs(Module* module) {
 196   InitializeCombinedInterface();
 197   if (has_interface<PPB_Flash_13_0>()) {
 198     return Var(PASS_REF, get_interface<PPB_Flash_13_0>()->GetCommandLineArgs(
 199         module->pp_module()));
 200   }
 201   if (flash_12_combined_interface.GetCommandLineArgs) {
 202     return Var(
 203         PASS_REF,
 204         flash_12_combined_interface.GetCommandLineArgs(module->pp_module()));
 205   }
 206   return Var();
 207 }
 208
 209 // static
 210 void Flash::PreloadFontWin(const void* logfontw) {
 211   InitializeCombinedInterface();
 212   if (has_interface<PPB_Flash_13_0>())
 213     return get_interface<PPB_Flash_13_0>()->PreloadFontWin(logfontw);
 214   if (flash_12_combined_interface.PreloadFontWin)
 215     return flash_12_combined_interface.PreloadFontWin(logfontw);
 216 }
 217
 218 // static
 219 bool Flash::IsRectTopmost(const InstanceHandle& instance, const Rect& rect) {
 220   InitializeCombinedInterface();
 221   if (has_interface<PPB_Flash_13_0>()) {
 222     return PP_ToBool(get_interface<PPB_Flash_13_0>()->IsRectTopmost(
 223         instance.pp_instance(), &rect.pp_rect()));
 224   }
 225   if (flash_12_combined_interface.IsRectTopmost) {
 226     return PP_ToBool(flash_12_combined_interface.IsRectTopmost(
 227         instance.pp_instance(), &rect.pp_rect()));
 228   }
 229   return false;
 230 }
 231
 232 // static
 233 void Flash::UpdateActivity(const InstanceHandle& instance) {
 234   InitializeCombinedInterface();
 235   if (has_interface<PPB_Flash_13_0>())
 236     get_interface<PPB_Flash_13_0>()->UpdateActivity(instance.pp_instance());
 237   else if (flash_12_combined_interface.UpdateActivity)
 238     flash_12_combined_interface.UpdateActivity(instance.pp_instance());
 239 }
 240
 241 // static
 242 Var Flash::GetSetting(const InstanceHandle& instance, PP_FlashSetting setting) {
 243   InitializeCombinedInterface();
 244   if (has_interface<PPB_Flash_13_0>()) {
 245     return Var(PASS_REF, get_interface<PPB_Flash_13_0>()->GetSetting(
 246         instance.pp_instance(), setting));
 247   }
 248   if (flash_12_combined_interface.GetSetting) {
 249     return Var(PASS_REF,
 250                flash_12_combined_interface.GetSetting(instance.pp_instance(),
 251                                                       setting));
 252   }
 253
 254   return Var();
 255 }
 256
 257 // static
 258 bool Flash::SetCrashData(const InstanceHandle& instance,
 259                          PP_FlashCrashKey key,
 260                          const pp::Var& value) {
 261   InitializeCombinedInterface();
 262   if (has_interface<PPB_Flash_13_0>()) {
 263     return PP_ToBool(get_interface<PPB_Flash_13_0>()->SetCrashData(
 264         instance.pp_instance(), key, value.pp_var()));
 265   }
 266   if (flash_12_combined_interface.SetCrashData) {
 267     return PP_ToBool(
 268         flash_12_combined_interface.SetCrashData(instance.pp_instance(),
 269                                                  key, value.pp_var()));
 270   }
 271   return false;
 272 }
 273
 274 // static
 275 int32_t Flash::EnumerateVideoCaptureDevices(
 276     const InstanceHandle& instance,
 277     const VideoCapture_Dev& video_capture,
 278     std::vector<DeviceRef_Dev>* devices_out) {
 279   InitializeCombinedInterface();
 280   if (has_interface<PPB_Flash_13_0>()) {
 281     ResourceArrayOutputAdapter<DeviceRef_Dev> adapter(devices_out);
 282     return get_interface<PPB_Flash_13_0>()->EnumerateVideoCaptureDevices(
 283         instance.pp_instance(),
 284         video_capture.pp_resource(),
 285         adapter.pp_array_output());
 286   }
 287   if (flash_12_combined_interface.EnumerateVideoCaptureDevices) {
 288     ResourceArrayOutputAdapter<DeviceRef_Dev> adapter(devices_out);
 289     return flash_12_combined_interface.EnumerateVideoCaptureDevices(
 290         instance.pp_instance(),
 291         video_capture.pp_resource(),
 292         adapter.pp_array_output());
 293   }
 294   return PP_ERROR_FAILED;
 295 }
 296
 297 // static
 298 bool Flash::InvokePrinting(const InstanceHandle& instance) {
 299   if (has_interface<PPB_Flash_Print_1_0>()) {
 300     get_interface<PPB_Flash_Print_1_0>()->InvokePrinting(
 301         instance.pp_instance());
 302     return true;
 303   }
 304   return false;
 305 }
 306
 307 }  // namespace flash
 308 }  // namespace pp