content/test/plugin/plugin_execute_stream_javascript.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 "content/test/plugin/plugin_execute_stream_javascript.h"
   6
   7 #include "base/basictypes.h"
   8 #include "content/test/plugin/plugin_client.h"
   9
  10 namespace NPAPIClient {
  11
  12 static const int kMaxLength = 4096;
  13
  14 ExecuteStreamJavaScript::ExecuteStreamJavaScript(
  15     NPP id, NPNetscapeFuncs *host_functions)
  16     : PluginTest(id, host_functions) {
  17 }
  18
  19 NPError ExecuteStreamJavaScript::NewStream(NPMIMEType type, NPStream* stream,
  20                                            NPBool seekable, uint16* stype) {
  21   return NPERR_NO_ERROR;
  22 }
  23
  24 int32 ExecuteStreamJavaScript::WriteReady(NPStream *stream) {
  25   return kMaxLength;
  26 }
  27
  28 int32 ExecuteStreamJavaScript::Write(NPStream *stream, int32 offset, int32 len,
  29                                      void *buffer) {
  30   if (stream == NULL) {
  31     SetError("Write got null stream");
  32     return -1;
  33   }
  34   if (len < 0 || len > kMaxLength) {
  35     SetError("Write got bogus stream chunk size");
  36     return -1;
  37   }
  38
  39   std::string javascript("javascript:");
  40   javascript.append(static_cast<char*>(buffer), len);
  41   size_t js_length = javascript.length();
  42   if (js_length != static_cast<uint32_t>(js_length)) {
  43     SetError("Javascript too long.");
  44     return -1;
  45   }
  46
  47   NPString script_string = { javascript.c_str(),
  48                              static_cast<uint32_t>(js_length) };
  49   NPObject *window_obj = NULL;
  50   NPAPIClient::PluginClient::HostFunctions()->getvalue(
  51       id(), NPNVWindowNPObject, &window_obj);
  52
  53   NPVariant unused_result;
  54   NPAPIClient::PluginClient::HostFunctions()->evaluate(
  55       id(), window_obj, &script_string, &unused_result);
  56
  57   return len;
  58 }
  59
  60 NPError ExecuteStreamJavaScript::DestroyStream(NPStream *stream,
  61                                                NPError reason) {
  62   return NPERR_NO_ERROR;
  63 }
  64
  65 } // namespace NPAPIClient